本文整理汇总了C#中System.Threading.WaitHandle类的典型用法代码示例。如果您正苦于以下问题：C# WaitHandle类的具体用法？C# WaitHandle怎么用？C# WaitHandle使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
WaitHandle类属于System.Threading命名空间，在下文中一共展示了WaitHandle类的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: AutoResetEvent
//引入命名空间
using System;
using System.Threading;
public sealed class App
{
// Define an array with two AutoResetEvent WaitHandles.
static WaitHandle[] waitHandles = new WaitHandle[]
{
new AutoResetEvent(false),
new AutoResetEvent(false)
};
// Define a random number generator for testing.
static Random r = new Random();
static void Main()
{
// Queue up two tasks on two different threads;
// wait until all tasks are completed.
DateTime dt = DateTime.Now;
Console.WriteLine("Main thread is waiting for BOTH tasks to complete.");
ThreadPool.QueueUserWorkItem(new WaitCallback(DoTask), waitHandles[0]);
ThreadPool.QueueUserWorkItem(new WaitCallback(DoTask), waitHandles[1]);
WaitHandle.WaitAll(waitHandles);
// The time shown below should match the longest task.
Console.WriteLine("Both tasks are completed (time waited={0})",
(DateTime.Now - dt).TotalMilliseconds);
// Queue up two tasks on two different threads;
// wait until any tasks are completed.
dt = DateTime.Now;
Console.WriteLine();
Console.WriteLine("The main thread is waiting for either task to complete.");
ThreadPool.QueueUserWorkItem(new WaitCallback(DoTask), waitHandles[0]);
ThreadPool.QueueUserWorkItem(new WaitCallback(DoTask), waitHandles[1]);
int index = WaitHandle.WaitAny(waitHandles);
// The time shown below should match the shortest task.
Console.WriteLine("Task {0} finished first (time waited={1}).",
index + 1, (DateTime.Now - dt).TotalMilliseconds);
}
static void DoTask(Object state)
{
AutoResetEvent are = (AutoResetEvent) state;
int time = 1000 * r.Next(2, 10);
Console.WriteLine("Performing a task for {0} milliseconds.", time);
Thread.Sleep(time);
are.Set();
}
}输出：
Main thread is waiting for BOTH tasks to complete. Performing a task for 7000 milliseconds. Performing a task for 4000 milliseconds. Both tasks are completed (time waited=7064.8052) The main thread is waiting for either task to complete. Performing a task for 2000 milliseconds. Performing a task for 2000 milliseconds. Task 1 finished first (time waited=2000.6528).
示例2: new WaitHandle
//引入命名空间
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");
}
}