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Peter 2016-01-26 16:20:49 +03:00
parent c584b6bf6b
commit e5d77e950c
3 changed files with 67 additions and 1 deletions
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4
SSignalKit.xcodeproj/project.pbxproj
View File

@ -88,6 +88,7 @@
D06F106C1A85561E00485185 /* SSignalBasicTests.m in Sources */ = {isa = PBXBuildFile; fileRef = D06F106B1A85561E00485185 /* SSignalBasicTests.m */; };
D06F10711A855E2D00485185 /* DeallocatingObject.m in Sources */ = {isa = PBXBuildFile; fileRef = D06F10701A855E2D00485185 /* DeallocatingObject.m */; };
D06F10731A85882000485185 /* SSignalPerformanceTests.m in Sources */ = {isa = PBXBuildFile; fileRef = D06F10721A85882000485185 /* SSignalPerformanceTests.m */; };
D07A5CFD1BBDE6E400451791 /* Promise.swift in Sources */ = {isa = PBXBuildFile; fileRef = D07A5CFC1BBDE6E400451791 /* Promise.swift */; };
D09FD73E1BA9BAB900FF0A4F /* SVariable.h in Headers */ = {isa = PBXBuildFile; fileRef = D09FD73C1BA9BAB900FF0A4F /* SVariable.h */; settings = {ATTRIBUTES = (Public, ); }; };
D09FD73F1BA9BAB900FF0A4F /* SVariable.m in Sources */ = {isa = PBXBuildFile; fileRef = D09FD73D1BA9BAB900FF0A4F /* SVariable.m */; };
/* End PBXBuildFile section */
@ -199,6 +200,7 @@
D06F106F1A855E2D00485185 /* DeallocatingObject.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = DeallocatingObject.h; sourceTree = "<group>"; };
D06F10701A855E2D00485185 /* DeallocatingObject.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = DeallocatingObject.m; sourceTree = "<group>"; };
D06F10721A85882000485185 /* SSignalPerformanceTests.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = SSignalPerformanceTests.m; sourceTree = "<group>"; };
D07A5CFC1BBDE6E400451791 /* Promise.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Promise.swift; sourceTree = "<group>"; };
D09FD73C1BA9BAB900FF0A4F /* SVariable.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = SVariable.h; sourceTree = "<group>"; };
D09FD73D1BA9BAB900FF0A4F /* SVariable.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = SVariable.m; sourceTree = "<group>"; };
/* End PBXFileReference section */
@ -260,6 +262,7 @@
D0085B4C1B282BEE00EAF753 /* Disposable.swift */,
D0085B4D1B282BEE00EAF753 /* Signal_Mapping.swift */,
D0085B4E1B282BEE00EAF753 /* Subscriber.swift */,
D07A5CFC1BBDE6E400451791 /* Promise.swift */,
D0085B261B282B9800EAF753 /* SwiftSignalKit.h */,
D0085B241B282B9800EAF753 /* Supporting Files */,
);
@ -615,6 +618,7 @@
D0085B601B282BEE00EAF753 /* Disposable.swift in Sources */,
D0085B531B282BEE00EAF753 /* ThreadPool.swift in Sources */,
D0085B5F1B282BEE00EAF753 /* Signal.swift in Sources */,
D07A5CFD1BBDE6E400451791 /* Promise.swift in Sources */,
D0085B5E1B282BEE00EAF753 /* Signal_Reduce.swift in Sources */,
D0085B621B282BEE00EAF753 /* Subscriber.swift in Sources */,
D0085B581B282BEE00EAF753 /* Signal_Take.swift in Sources */,

60
SwiftSignalKit/Promise.swift Normal file
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@ -0,0 +1,60 @@
import Foundation
public class Promise<T> {
private var value: T?
private var lock: OSSpinLock = 0
private let disposable = MetaDisposable()
private let subscribers = Bag<T -> Void>()
public init(_ value: T) {
self.value = value
}
public init() {
}
deinit {
self.disposable.dispose()
}
public func set(signal: Signal<T, NoError>) {
OSSpinLockLock(&self.lock)
self.value = nil
OSSpinLockUnlock(&self.lock)
self.disposable.set(signal.start(next: { [weak self] next in
if let strongSelf = self {
OSSpinLockLock(&strongSelf.lock)
strongSelf.value = next
let subscribers = strongSelf.subscribers.copyItems()
OSSpinLockUnlock(&strongSelf.lock);
for subscriber in subscribers {
subscriber(next)
}
}
}))
}
public func get() -> Signal<T, NoError> {
return Signal { subscriber in
OSSpinLockLock(&self.lock)
let currentValue = self.value
let index = self.subscribers.add({ next in
subscriber.putNext(next)
})
OSSpinLockUnlock(&self.lock)
if let currentValue = currentValue {
subscriber.putNext(currentValue)
}
return ActionDisposable {
OSSpinLockLock(&self.lock)
self.subscribers.remove(index)
OSSpinLockUnlock(&self.lock)
}
}
}
}

4
SwiftSignalKit/Queue.swift
View File

@ -3,6 +3,8 @@ import Foundation
private let _QueueSpecificKey = NSObject()
private let QueueSpecificKey: UnsafePointer<Void> = UnsafePointer<Void>(Unmanaged<AnyObject>.passUnretained(_QueueSpecificKey).toOpaque())
private let globalMainQueue = Queue(queue: dispatch_get_main_queue(), specialIsMainQueue: true)
public final class Queue {
private let nativeQueue: dispatch_queue_t
private var specific: UnsafeMutablePointer<Void>
@ -15,7 +17,7 @@ public final class Queue {
}
public class func mainQueue() -> Queue {
return Queue(queue: dispatch_get_main_queue(), specialIsMainQueue: true)
return globalMainQueue
}
public class func concurrentDefaultQueue() -> Queue {