twisted.py 文件源码

def add_timeout(self, deadline, callback, *args, **kwargs):
        # This method could be simplified (since tornado 4.0) by
        # overriding call_at instead of add_timeout, but we leave it
        # for now as a test of backwards-compatibility.
        if isinstance(deadline, numbers.Real):
            delay = max(deadline - self.time(), 0)
        elif isinstance(deadline, datetime.timedelta):
            delay = timedelta_to_seconds(deadline)
        else:
            raise TypeError("Unsupported deadline %r")
        return self.reactor.callLater(
            delay, self._run_callback,
            functools.partial(wrap(callback), *args, **kwargs))