Csharp/CSharp Tutorial/Thread/WaitHandle

Waiting with WaitHandle

using System;
using System.Threading;
class ThreadSleeper
{
    AutoResetEvent napDone = new AutoResetEvent(false);
    
    public void Sleep()
    {
        Thread.Sleep(1000);
        napDone.Set();
    }
    
    public static WaitHandle GetWaitHandle()
    {
        ThreadSleeper ts = new ThreadSleeper();
        Thread thread = new Thread(new ThreadStart(ts.Sleep));
        thread.Start();
        return(ts.napDone);
    }
}
class MainClass
{
    public static void Main()
    {
        WaitHandle[] waits = new WaitHandle[2];
        waits[0] = ThreadSleeper.GetWaitHandle();
        waits[1] = ThreadSleeper.GetWaitHandle();
        
        Console.WriteLine("Waiting for threads to finish");
        WaitHandle.WaitAll(waits);
        Console.WriteLine("Threads finished");
    }
}

Waiting for threads to finish
Threads finished