Thread.Interrupt无法正常工作

时间:2009-09-23 19:07:57

标签: c# multithreading

为什么我的Thread.Interrupt无效?

执行中断的代码:

public void Stop()
{
    const string LOG_SOURCE = "ProcessingDriver";

    if (_Enabled)
    {
        try
        {
            RequestProcessor.Disable();
            if (ProcessingThread != null)
            {
                ProcessingThread.Interrupt();
                ProcessingThread.Join();
            }
        }
        catch (Exception ex)
        {
            WriteLog(LOG_SOURCE, ex);
        }
    }
}

我希望停止的代码:

private void ProcessRequests()
{
    const string LOG_SOURCE = "ProcessRequests";
    try
    {
        ProcessingThread = Thread.CurrentThread;
        while (!_Disposed)
        {
            _ProcessingWaitHandle.WaitOne();
            int count = GetRequestCount();
            while (count > 0)
            {
                try
                {
                    ExportRequest er = GetRequest();
                    ProcessRequest(er);
                }
                catch (ThreadInterruptedException)
                {
                    throw;
                }
                catch (Exception ex)
                {
                    WriteLog(LOG_SOURCE,
                         ex);
                    WriteLog(LOG_SOURCE,
                        "Request Failed.");
                }
                //Suspend to catch interupt
               Thread.Sleep(1);
                count = GetRequestCount();
            }
        }
    }
    catch (ThreadInterruptedException)
    {
        WriteLog(LOG_SOURCE,
            "Interupted. Exiting.", LogType.Info);
    }
    catch (Exception critEx)
    {
        //Should never get here
        WriteLog(LOG_SOURCE, critEx);
        WriteLog(LOG_SOURCE,
            "Serious unhandled error.  Please restart.", LogType.Critical);
    }
}

我已经完成了代码。我可以看到中断被调用(睡眠或等待当时不是活动命令),我可以看到睡眠被调用,但是没有抛出中断错误(无论是在睡眠上,还是在WaitOne上,即使是线程也是如此)在WaitOne上阻止。

我做错了什么?

注意:.Net 2.0

1 个答案:

答案 0 :(得分:3)

嗯......看起来确实应该有效,但我建议你不要先使用Interrupt。使用事件和/或Monitor.Wait / Pulse告诉线程您要停止。这是一种通常更简单的方法,可以让工作者线程更有条理地控制停止。