.NET线程：如何等待其他线程完成某些任务

Question

Assume I have method void SomeMethod(Action callback) This method does some work in background thread and then invokes callback. The question is - how to block current thread until callback is called ?

There is an example

bool finished = false;
SomeMethod(delegate{
 finished = true;
});
while(!finished)
  Thread.Sleep();

But I'm sure there should be better way

Answer 1

You can use AutoResetEvent to signal when your thread is finished.

Check this code snippet:

    AutoResetEvent terminateEvent = new AutoResetEvent(false);
    bool finished = false;
    SomeMethod(delegate
    {
        terminateEvent.Set();
    });
    terminateEvent.WaitOne();

Answer 2

Check for Thread.Join() will work

Example of this