3
이 구현에서 왜 stopped이 아닌지 알 수 없습니다. volatile - 다른 스레드가이를 업데이트하면 올바르게 반영됩니까?정상적으로 작업자 스레드 종료
둘째로 원자 (!Stopping)를 테스트하고 있습니까?
using System;
using System.Threading;
/// <summary>
/// Skeleton for a worker thread. Another thread would typically set up
/// an instance with some work to do, and invoke the Run method (eg with
/// new Thread(new ThreadStart(job.Run)).Start())
/// </summary>
public class Worker
{
/// <summary>
/// Lock covering stopping and stopped
/// </summary>
readonly object stopLock = new object();
/// <summary>
/// Whether or not the worker thread has been asked to stop
/// </summary>
bool stopping = false;
/// <summary>
/// Whether or not the worker thread has stopped
/// </summary>
bool stopped = false;
/// <summary>
/// Returns whether the worker thread has been asked to stop.
/// This continues to return true even after the thread has stopped.
/// </summary>
public bool Stopping
{
get
{
lock (stopLock)
{
return stopping;
}
}
}
/// <summary>
/// Returns whether the worker thread has stopped.
/// </summary>
public bool Stopped
{
get
{
lock (stopLock)
{
return stopped;
}
}
}
/// <summary>
/// Tells the worker thread to stop, typically after completing its
/// current work item. (The thread is *not* guaranteed to have stopped
/// by the time this method returns.)
/// </summary>
public void Stop()
{
lock (stopLock)
{
stopping = true;
}
}
/// <summary>
/// Called by the worker thread to indicate when it has stopped.
/// </summary>
void SetStopped()
{
lock (stopLock)
{
stopped = true;
}
}
/// <summary>
/// Main work loop of the class.
/// </summary>
public void Run()
{
try
{
while (!Stopping)
{
// Insert work here. Make sure it doesn't tight loop!
// (If work is arriving periodically, use a queue and Monitor.Wait,
// changing the Stop method to pulse the monitor as well as setting
// stopping.)
// Note that you may also wish to break out *within* the loop
// if work items can take a very long time but have points at which
// it makes sense to check whether or not you've been asked to stop.
// Do this with just:
// if (Stopping)
// {
// return;
// }
// The finally block will make sure that the stopped flag is set.
}
}
finally
{
SetStopped();
}
}
}
편집
이 코드는 an article written by Jon Skeet에서입니다.
Jon Skeet이 어떻게 관련이 있습니까? – YOU
@ S.Mark : 'Jon Skeets'페이지에서 작업자 스레드를 종료하는 방법에 대해 설명합니다. –
@ S.Mark ... 프로그래밍 관련 내용은 Jon Skeet과 관련이 있습니다 .... Jon Skeet 사실이어야합니다! http : //meta.stackexchange.com/questions/9134/jon-skeet-facts – James