synchronization.py 文件源码

def do_release_write_lock(self):
        self.condition.acquire()
        try:
            if self.current_sync_operation is not _threading.currentThread():
                raise LockError("Synchronizer error - current thread doesnt "
                                "have the write lock")

            # reset the current sync operation so 
            # another can get it
            self.current_sync_operation = None

            # tell everyone to get ready
            self.condition.notifyAll()
        finally:
            # everyone go !!
            self.condition.release()