首页 > 代码库 > C# 多线程处理相关说明: WaitHandle,waitCallback, ThreadPool.QueueUserWorkItem
C# 多线程处理相关说明: WaitHandle,waitCallback, ThreadPool.QueueUserWorkItem
class TestThread { static void Main() { //使用WaitHandle静态方法阻止一个线程,直到一个或多个同步对象接收到信号 WaitHandle[] waitHandles = new WaitHandle[] { new ManualResetEvent(false), new ManualResetEvent(false) }; WaitCallback waitCallback = new WaitCallback(MyThreadWork); WaitCallback waitCallback2 = new WaitCallback(MyThreadWork2); // 增加线程工作类型 ThreadPool.QueueUserWorkItem(waitCallback, "第一个线程"); ThreadPool.QueueUserWorkItem(waitCallback, "第二个线程"); MyState myState = new MyState("第三个线程", 100, waitHandles[0]); // 增加自定义的线程参数类型 ThreadPool.QueueUserWorkItem(waitCallback2, myState); ThreadPool.QueueUserWorkItem(waitCallback2, new MyState("第四个线程", 2, waitHandles[1])); WaitHandle.WaitAll(waitHandles); Console.WriteLine("MyState 的 Number 值为: {0}", myState.Number); // 读取线程改变后的 MyState } public static void MyThreadWork(object state) { Console.WriteLine("MyThreadWork 开始启动 …… {0}", (string)state); Thread.Sleep(1000); Console.WriteLine("运行结束…… {0}", (string)state); } // use MyState class public static void MyThreadWork2(object state) { MyState myState = ((MyState)state); Console.WriteLine("MyThreadWork2 开始启动…… {0},{1}", ((MyState)state).Info, ((MyState)state).Number); Thread.Sleep(1000); ((MyState)state).Number += 1; // 将 state的 Number 加 1 Console.WriteLine("运行结束…… {0},{1}", ((MyState)state).Info, ((MyState)state).Number); ((ManualResetEvent)myState.DoneEvent).Set(); } } public class MyState { private string info; private int number; private WaitHandle _doneEvent; public MyState(string info, int number, WaitHandle doneEvent) { this.info = info; this.number = number; this._doneEvent = doneEvent; } public string Info { get { return this.info; } set { this.info = value; } } public WaitHandle DoneEvent { get { return this._doneEvent; } } public int Number { get { return this.number; } set { this.number = value; } } }
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