AutoResetEvent.How to use it

最新推荐文章于 2019-11-29 16:45:32 发布

转载最新推荐文章于 2019-11-29 16:45:32 发布 · 821 阅读

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本文介绍了一个使用AutoResetEvent类实现线程间通信的例子。该类用于通知等待线程事件的发生，使线程能独占访问共享资源。文章通过一个包含写入线程和读取线程的具体案例，演示了如何利用AutoResetEvent来协调不同线程间的操作。

AutoResetEvent类:通知正在等待的线程已发生事件,允许线程通过发信号互相通信。通常，此通信涉及线程需要独占访问的资源。

class MyMainClass
{
//Initially not signaled.
const int numIterations = 100;
static AutoResetEvent myResetEvent = new AutoResetEvent(false);
static int number;

static void Main()
{
//Create and start the reader thread.
Thread myReaderThread = new Thread(new ThreadStart(MyReadThreadProc));
myReaderThread.Name = "ReaderThread";
myReaderThread.Start();

for(int i = 1; i <= numIterations; i++)
{
Console.WriteLine("Writer thread writing value: {0}", i);
number = i;

//Signal that a value has been written.
myResetEvent.Set();

//Give the Reader thread an opportunity to act.
Thread.Sleep(0);
}

//Terminate the reader thread.
myReaderThread.Abort();
}

static void MyReadThreadProc()
{
while(true)
{
//The value will not be read until the writer has written
// at least once since the last read.
myResetEvent.WaitOne();
Console.WriteLine("{0} reading value: {1}", Thread.CurrentThread.Name, number);
}
}
}