Objective-C相当于Java的LinkedBlockingQueue (Objective-C equivalent of Java's LinkedBlockingQueue)

 我正在使用最新的SDK开发iOS应用程序，我必须使用Objective-C实现LinkedBlockingQueue 。 
 
 我必须做类似这样的代码： 
 
public boolean onEvent(final EventArgs e) {

    if (e.getClass() != this.eventType) return false;

    long now = android.os.SystemClock.uptimeMillis();

    long diff = now - this.last;

    final long threadExecutionTimeMs = now - lastThreadExecution;

    if (executions.remainingCapacity() == 0)
    {
        executions.poll();
    }

    executions.add(threadExecutionTimeMs);

   ...
}
 
 可能我可以使用NSMutableArray但我不知道如何模拟阻塞等。 
 
 任何建议？ 

I'm developing an iOS application with latest SDK and I have to implement a LinkedBlockingQueue with Objective-C.
 
I have to do something like this code:
 
public boolean onEvent(final EventArgs e) {

    if (e.getClass() != this.eventType) return false;

    long now = android.os.SystemClock.uptimeMillis();

    long diff = now - this.last;

    final long threadExecutionTimeMs = now - lastThreadExecution;

    if (executions.remainingCapacity() == 0)
    {
        executions.poll();
    }

    executions.add(threadExecutionTimeMs);

   ...
}
 
Probably I can use NSMutableArray but I don't know how to emulate blocking, etc.
 
Any advice?

原文：https://stackoverflow.com/questions/15762067