相关疑难解决方法(0)

我希望我的线程更优雅地关闭,所以我试图实现一个简单的信令机制.我不认为我想要一个完全事件驱动的线程,所以我有一个工人用一个方法来使用一个关键部分Monitor(相当于一个C#lock我相信)来优雅地停止它:

DrawingThread.h

class DrawingThread {
    bool stopRequested;
    Runtime::Monitor CSMonitor;
    CPInfo *pPInfo;
    //More..
}

DrawingThread.cpp

void DrawingThread::Run() {
    if (!stopRequested)
        //Time consuming call#1
    if (!stopRequested) {
        CSMonitor.Enter();
        pPInfo = new CPInfo(/**/);
        //Not time consuming but pPInfo must either be null or constructed. 
        CSMonitor.Exit();
    }
    if (!stopRequested) {
        pPInfo->foobar(/**/);//Time consuming and can be signalled
    }
    if (!stopRequested) {
        //One more optional but time consuming call.
    }
}


void DrawingThread::RequestStop() {
    CSMonitor.Enter();
    stopRequested = true;
    if (pPInfo) pPInfo->RequestStop();
    CSMonitor.Exit(); …