Method _remove_reader

Lib/asyncio/selector_events.py:296–313

(self, fd)

        return handle

    def _remove_reader(self, fd):
        if self.is_closed():
            return False
        key = self._selector.get_map().get(fd)
        if key is None:
            return False
        mask, (reader, writer) = key.events, key.data
        mask &= ~selectors.EVENT_READ
        if not mask:
            self._selector.unregister(fd)
        else:
            self._selector.modify(fd, mask, (None, writer))

        if reader is not None:
            reader.cancel()
            return True
        else:
            return False

    def _add_writer(self, fd, callback, *args, context=None):
        self._check_closed()