refactor and cleanup [skip ci]

2025-12-22 22:25:57 +00:00 · 2019-11-01 17:11:12 +04:00
parent 66191348f3
commit 8f66c10ac1
786 changed files with 983 additions and 69155 deletions
--- a/submodules/Postbox/Sources/PeerOperationLogMetadataTable.swift
+++ b/submodules/Postbox/Sources/PeerOperationLogMetadataTable.swift
@@ -0,0 +1,70 @@
+import Foundation
+
+private enum PeerOperationLogIndexNamespace: Int8 {
+    case nextTagLocalIndex = 0
+    case nextMergedIndex = 1
+}
+
+final class PeerOperationLogMetadataTable: Table {
+    static func tableSpec(_ id: Int32) -> ValueBoxTable {
+        return ValueBoxTable(id: id, keyType: .binary, compactValuesOnCreation: true)
+    }
+    
+    private func keyForNextMergedIndex() -> ValueBoxKey {
+        let key = ValueBoxKey(length: 1)
+        key.setInt8(0, value: PeerOperationLogIndexNamespace.nextMergedIndex.rawValue)
+        return key
+    }
+    
+    private func keyForNextLocalIndex(peerId: PeerId, tag: PeerOperationLogTag) -> ValueBoxKey {
+        let key = ValueBoxKey(length: 1 + 8 + 1)
+        key.setInt8(0, value: PeerOperationLogIndexNamespace.nextTagLocalIndex.rawValue)
+        key.setInt64(1, value: peerId.toInt64())
+        key.setUInt8(9, value: tag.rawValue)
+        return key
+    }
+    
+    func getNextLocalIndex(peerId: PeerId, tag: PeerOperationLogTag) -> Int32 {
+        if let value = self.valueBox.get(self.table, key: self.keyForNextLocalIndex(peerId: peerId, tag: tag)) {
+            assert(value.length == 4)
+            var index: Int32 = 0
+            value.read(&index, offset: 0, length: 4)
+            return index
+        } else {
+            return 0
+        }
+    }
+    
+    func setNextLocalIndex(peerId: PeerId, tag: PeerOperationLogTag, index: Int32) {
+        var indexValue: Int32 = index
+        self.valueBox.set(self.table, key: self.keyForNextLocalIndex(peerId: peerId, tag: tag), value: MemoryBuffer(memory: &indexValue, capacity: 4, length: 4, freeWhenDone: false))
+    }
+    
+    func takeNextLocalIndex(peerId: PeerId, tag: PeerOperationLogTag) -> Int32 {
+        let index = self.getNextLocalIndex(peerId: peerId, tag: tag)
+        self.setNextLocalIndex(peerId: peerId, tag: tag, index: index + 1)
+        return index
+    }
+    
+    func getNextMergedIndex() -> Int32 {
+        if let value = self.valueBox.get(self.table, key: self.keyForNextMergedIndex()) {
+            assert(value.length == 4)
+            var index: Int32 = 0
+            value.read(&index, offset: 0, length: 4)
+            return index
+        } else {
+            return 1
+        }
+    }
+    
+    private func setNextMergedIndex(_ index: Int32) {
+        var indexValue: Int32 = index
+        self.valueBox.set(self.table, key: self.keyForNextMergedIndex(), value: MemoryBuffer(memory: &indexValue, capacity: 4, length: 4, freeWhenDone: false))
+    }
+    
+    func takeNextMergedIndex() -> Int32 {
+        let index = self.getNextMergedIndex()
+        self.setNextMergedIndex(index + 1)
+        return index
+    }
+}