15

我想模拟与服务器的通信。由于远程服务器会有一些延迟,我想使用一个后台线程

 [NSThread sleepForTimeInterval:timeoutTillAnswer];

该线程是使用 NSThread 子类创建并启动的……但是我注意到 sleepForTimeInterval 阻塞了主线程……为什么???NSThread 默认不是 backgroundThread 吗?

这是创建线程的方式:

   self.botThread = [[PSBotThread alloc] init];
    [self.botThread start];

更多信息:这是机器人线程子类

- (void)main
{
    @autoreleasepool {
        self.gManager = [[PSGameManager alloc] init];
        self.comManager = [[PSComManager alloc] init];
        self.bot = [[PSBotPlayer alloc] initWithName:@"Botus" andXP:[NSNumber numberWithInteger:1500]];
        self.gManager.localPlayer = self.bot;
        self.gManager.comDelegate = self.comManager;
        self.gManager.tillTheEndGame = NO;
        self.gManager.localDelegate = self.bot;
        self.comManager.gameManDelegate = self.gManager;
        self.comManager.isBackgroundThread = YES;
        self.comManager.logginEnabled = NO;
        self.gManager.logginEnabled = NO;
        self.bot.gameDelegate = self.gManager;
        BOOL isAlive = YES;
        // set up a run loop
        NSRunLoop *runloop = [NSRunLoop currentRunLoop];
        [runloop addPort:[NSMachPort port] forMode:NSDefaultRunLoopMode];
        [self.gManager beginGameSP];
        while (isAlive) { // 'isAlive' is a variable that is used to control the thread existence...
            [runloop runMode:NSDefaultRunLoopMode beforeDate:[NSDate distantFuture]];
        }



    }
}

- (void)messageForBot:(NSData *)msg
{
    [self.comManager didReceiveMessage:msg];
}

我想从主线程调用“messageForBot”......后台线程也应该调用主线程上的一个方法进行通信..gManager对象内部的时间间隔睡眠......

4

3 回答 3

23

它阻止任何线程 sleepForTimeInterval 正在运行。在另一个线程上运行它以模拟您的服务器延迟,如下所示:

dispatch_queue_t serverDelaySimulationThread = dispatch_queue_create("com.xxx.serverDelay", nil);
dispatch_async(serverDelaySimulationThread, ^{
     [NSThread sleepForTimeInterval:10.0];
     dispatch_async(dispatch_get_main_queue(), ^{
            //Your server communication code here
    }); 
});
于 2013-08-15T09:42:12.547 回答
1

尝试在你的线程类中创建一个名为 sleepThread 的方法

-(void)sleepThread
{
   [NSThread sleepForTimeInterval:timeoutTillAnswer];
}

然后让它从你的主线程中休眠

[self.botThread performSelector:@selector(sleepThread) onThread:self.botThread withObject:nil waitUntilDone:NO];

从您的机器人线程发送更新到您的主线程。

dispatch_async(dispatch_get_main_queue(), ^{
    [MainClass somethinghasUpdated];
});

边注

要创建 RunLoop,我认为您需要做的就是

// Run the Current RunLoop
[[NSRunLoop currentRunLoop] run];
于 2013-08-15T11:41:03.140 回答
0

迅速:

let nonBlockingQueue: dispatch_queue_t = dispatch_queue_create("nonBlockingQueue", DISPATCH_QUEUE_CONCURRENT)
dispatch_async(nonBlockingQueue) {
    NSThread.sleepForTimeInterval(1.0)
    dispatch_async(dispatch_get_main_queue(), {
        // do your stuff here
    })
}
于 2016-05-05T14:17:57.890 回答