def notify_cancel_all_in_progress(self):
for transfer_state in self._transfer_states.values():
if not transfer_state.done:
transfer_state.exception = CancelledError()
def notify_cancelled(self, reason, run_done_callbacks):
''' notify cancel with reason and a whether to run done callbacks '''
self.notify_exception(CancelledError(reason), run_done_callbacks)
def cancel(self):
self._monitor.notify_exception(self._meta.transfer_id,
CancelledError())