KillerRabbit是THGDispatch模块，包括GCDbits：Queues,Groups,Timer,Semaphore等等。
使用：
执行异步闭包：
Dispatch().async(.Background) { doSomething()}在后台队列执行异步闭包：
Dispatch().async(.Background) { doSomething()}.notify(.Main) { dearMainThreadImDone()}执行一个异步闭包并等候3秒：
Dispatch().async(.Background) { doSomething()}.wait(3) == false { itTimedOutImSad()} else { itWasSuccessfulAndMyLifeHasMeaning()}执行一些异步任务：
DispatchGroup().async(.Background) { doSomething(1)}.async(.Utility) { doSomething(2)}.async(.High) { doSomethingUrgently(3)}.wait()或者：
let group = DispatchGroup()group.async(.Background) { doSomething(1)}.async(.Utility) { doSomething(2)}.async(.High) { doSomethingUrgently(3)}if group.wait(10) == true { handstandAndCartwheel()}执行一个异步任务，同步一个Semaphore：
let semaphore = DispatchSemaphore(initialValue: 0)// start a NSURLSession to get some data from our imaginary command line tool.let task = session.dataTaskWithRequest(request) { (data, response, error) -> Void in if data != nil { let dataString: String = NSString(data: data, encoding: NSUTF8StringEncoding)! as String json = JSON(string: dataString) } semaphore.signal()}task.resume()semaphore.wait()
评论