linux与windows下多线程work模式实现

最新推荐文章于 2024-09-01 23:02:17 发布

typ2004

最新推荐文章于 2024-09-01 23:02:17 发布

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CC 4.0 BY-SA版权

本文链接：https://blog.youkuaiyun.com/typ2004/article/details/20530265

本文对比了Linux和Windows平台下工作队列的实现方式，包括互斥锁、条件变量等关键技术的运用。

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linux平台

int WorkQueue::AddWork(Work* work) {
    printf("WorkQueue::AddWork\n");
    pthread_mutex_lock(&mutex);
    works.push_back(work);
    pthread_cond_signal(&cond);
    pthread_mutex_unlock(&mutex);
    return 0;
    // TODO: Íê³É´úÂë
}

Work* WorkQueue::GetWork() {
    // TODO: Íê³É´úÂë
    printf("WorkQueue::GetWork\n");
    pthread_mutex_lock(&mutex);
    while(works.empty()){
        if(shutdown){
            pthread_mutex_unlock(&mutex);
            return NULL;
        }
        printf("pthread_cond_wait ing...\n");
        pthread_cond_wait(&cond, &mutex);

        printf("pthread_cond_wait done \n");
    }
    Work* getwork = works.front();
    works.pop_front();
    pthread_mutex_unlock(&mutex);
    return getwork;
}

windows平台：

int WorkQueue::AddWork(Work* work) {
    printf("WorkQueue::AddWork\n");
    WaitForSingleObject(hMutex, INFINITE);
    printf("add a work \n");
    works.push_back(work);
    
    SetEvent(hEvent);//single only one
    
    ReleaseMutex(hMutex);
    return 0;
    // TODO: 完成代码
}

Work* WorkQueue::GetWork() {
    // TODO: 完成代码
    printf("WorkQueue::GetWork\n");
    WaitForSingleObject(hMutex, INFINITE);
    while(works.empty()){
        if(shutdown){
            ReleaseMutex(hMutex);
            SetEvent(hEvent);
            return NULL;
        }
        printf("pthread_cond_wait ing...\n");
        SignalObjectAndWait(hMutex, hEvent, INFINITE, FALSE);
        WaitForSingleObject(hMutex, INFINITE);
    }
    printf("get a work \n");
    Work* getwork = works.front();
    works.pop_front();
    
    ReleaseMutex(hMutex);
    return getwork;
}