main_loop.py 文件源码

def remove_alarm(self, handle):
        """
        Remove an alarm.

        Returns True if the alarm exists, False otherwise
        """
        from twisted.internet.error import AlreadyCancelled, AlreadyCalled
        try:
            handle.cancel()
            return True
        except AlreadyCancelled:
            return False
        except AlreadyCalled:
            return False