linux下的读写锁pthread_mutex使用方法

pthread_rwlock_t m_lock;

初始化：

pthread_rwlock_init(&m_lock, NULL);

销毁：

pthread_rwlock_destroy(&m_lock);

读锁:

pthread_rwlock_rdlock(&m_lock);

写锁:

pthread_rwlock_wrlock(&m_lock);

释放锁:

pthread_rwlock_unlock(&m_lock);

尝试用读锁:

pthread_rwlock_tryrdlock(&m_lock);

尝试用写锁:

pthread_rwlock_trywrlock(&m_lock);