Method _cancel_overlapped

Lib/asyncio/windows_events.py:68–82

(self)

        return info

    def _cancel_overlapped(self):
        if self._ov is None:
            return
        try:
            self._ov.cancel()
        except OSError as exc:
            context = {
                'message': 'Cancelling an overlapped future failed',
                'exception': exc,
                'future': self,
            }
            if self._source_traceback:
                context['source_traceback'] = self._source_traceback
            self._loop.call_exception_handler(context)
        self._ov = None

    def cancel(self, msg=None):
        self._cancel_overlapped()