__init__.py 文件源码

def _async_recvfrom(self, *args):
        """Internal use only; use 'recvfrom' with 'yield' instead.

        Asynchronous version of socket recvfrom method.
        """
        def _recvfrom():
            try:
                buf = self._rsock.recvfrom(*args)
            except:
                self._read_fn = None
                self._notifier.clear(self, _AsyncPoller._Read)
                self._read_task.throw(*sys.exc_info())
            else:
                self._read_fn = None
                self._notifier.clear(self, _AsyncPoller._Read)
                self._read_task._proceed_(buf)

        if not self._scheduler:
            self._scheduler = Pycos.scheduler()
            self._notifier = self._scheduler._notifier
            self._register()
        self._read_task = Pycos.cur_task(self._scheduler)
        self._read_task._await_()
        self._read_fn = _recvfrom
        self._notifier.add(self, _AsyncPoller._Read)