AutoResetEvent仅在未设置时等待的最佳方式

Question

I'm probably going outside of the proper design for an AutoResetEvent but don't quite know what to turn to. I want this behavior:

var autoResetEvent = new AutoResetEvent(false);
autoResetEvent.Set();
autoResetEvent.Set();
autoResetEvent.WaitOne();
// since Set was called twice, I don't want to wait here
autoResetEvent.WaitOne();

Unfortunately (for my problem), this is not how an AutoResetEvent behaves. What is the best class to use for this situation?

Note: I have access to the .NET Parallel Exensions library.

Answer 1

你在寻找信号量吗？

Answer 2

If you have the ability to use the Parallel Extensions Library then you should use that instead. It is trivial to invoke worker tasks and then wait on them to finish executing.

var task = Task.Factory.StartNew(() => {
    Thread.Sleep(1000);
    Console.WriteLine("I'm Awake!");
});

Console.WriteLine("Waiting on task...");

task.Wait();

This should produce the following output:

Waiting on task...
I'm Awake!

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