rlock.py 文件源码

def release(self):
        with self._reference_lock:
            # You never had the lock :(
            if self._lock_holding_thread != _get_ident():
                return False

            self._reference_count -= 1
            if self._reference_count == 0:
                self.__rlock_cleanup()
                return self.client.retry(self._inner_release)
            return True