swoole锁的机制代码实例讲授(3)

int swMutex_create(swLock *lock, int use_in_process) {     int ret;     bzero(lock, sizeof(swLock));     lock->type = SW_MUTEX;     pthread_mutexattr_init(&lock->object.mutex.attr);     if (use_in_process == 1)     {         pthread_mutexattr_setpshared(&lock->object.mutex.attr, PTHREAD_PROCESS_SHARED);     }     if ((ret = pthread_mutex_init(&lock->object.mutex._lock, &lock->object.mutex.attr)) < 0)     {         return SW_ERR;     }     lock->lock = swMutex_lock;     lock->unlock = swMutex_unlock;     lock->trylock = swMutex_trylock;     lock->free = swMutex_free;     return SW_OK; }

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