linux 条件变量

等待者

pthread_mutex_lock(&m_TheadMutex);while(m_dwActiveThreadCount != m_TotalWorkerTheadCount || m_HasActiveHandles==1){ pthread_cond_wait(&m_OwnerCanGo, &m_TheadMutex);}pthread_mutex_unlock(&m_TheadMutex);//条件变量中的条件二字就体现为"m_dwActiveThreadCount != m_TotalWorkerTheadCount || m_HasActiveHandles==1"//wait内部释放mutex, 等待条件变量被唤醒者激活(signal), 激活后会重新获取mutex, 再次while来判断条件表达式是否成立比较拗口

 

 

唤醒者

pthread_mutex_lock(&pThis->m_TheadMutex);pthread_cond_signal(&pThis->m_OwnerCanGo);pthread_mutex_unlock(&pThis->m_TheadMutex);

 

 

初始化 与 释放

pthread_cond_init(&m_OwnerCanGo, NULL);pthread_mutex_init(&m_TheadMutex, NULL);pthread_mutex_destroy(&m_TheadMutex);pthread_cond_destroy(&m_OwnerCanGo);