我有三个线程,两个“工作者”和一个“管理者”。 “工作者”线程等待“管理者”线程发出信号后通过EventWaitHandle
增加它们的计数器。这两个“工作者”线程之间唯一的区别就是其中一个使用EventWaitHandle.WaitAny()
,而另一个则使用EventWaitHandle.WaitOne()
。
以下是代码:
class Program
{
static void Main(string[] args)
{
MultiThreadedJobs multyThreadedJobs = new MultiThreadedJobs();
multyThreadedJobs.Start();
Console.ReadLine();
multyThreadedJobs.Stop();
}
}
class MultiThreadedJobs : IDisposable
{
private EventWaitHandle syncEvent;
private EventWaitHandle[] syncEventsArray;
private Thread managerThread;
private Thread firstWorkerThread;
private Thread secondWorkerThread;
private volatile bool running = false;
public MultiThreadedJobs() // Ctor
{
syncEvent = new EventWaitHandle(false, EventResetMode.AutoReset, "JobsSyncEvent");
syncEventsArray = new EventWaitHandle[1];
syncEventsArray[0] = syncEvent;
managerThread = new Thread(ManagerThreadMethod);
firstWorkerThread = new Thread(FirstWorkerThreadMethod);
secondWorkerThread = new Thread(SecondWorkerThreadMethod);
}
public void Start()
{
running = true;
managerThread.Start();
firstWorkerThread.Start();
secondWorkerThread.Start();
}
public void Stop()
{
running = false;
}
private void ManagerThreadMethod() // Manager Thread
{
while (running)
{
Thread.Sleep(1000);
syncEvent.Set();
}
}
private void FirstWorkerThreadMethod() // Worker Thread
{
int counter = 0;
while (running)
{
syncEvent.WaitOne();
counter++;
}
}
private void SecondWorkerThreadMethod() // Worker Thread
{
int counter = 0;
while (running)
{
EventWaitHandle.WaitAny(syncEventsArray);
counter++;
}
}
public void Dispose()
{
syncEvent.Close();
}
}
问题是,使用 EventWaitHandle.WaitAny()
的第二个工作线程总是会捕获事件,并使第一个工作线程处于饥饿状态,而不是将事件分配给两个线程的比例约为50/50。
Thread.Start()
? - sllContextBoundObject
还是被标记为Synchronization]
属性?running
的值吗?