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Issue #23095, asyncio: IocpProactor.close() must not cancel pending

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_WaitCancelFuture futures
This commit is contained in:
Victor Stinner 2015-01-22 00:17:54 +01:00
parent 0c2e408833
commit 1ca9392c70
1 changed files with 6 additions and 0 deletions
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6
Lib/asyncio/windows_events.py
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@ -163,6 +163,9 @@ class _WaitCancelFuture(_BaseWaitHandleFuture):
self._done_callback = None
def cancel(self):
raise RuntimeError("_WaitCancelFuture must not be cancelled")
def _schedule_callbacks(self):
super(_WaitCancelFuture, self)._schedule_callbacks()
if self._done_callback is not None:
@ -693,6 +696,9 @@ class IocpProactor:
# FIXME: Tulip issue 196: remove this case, it should not happen
elif fut.done() and not fut.cancelled():
del self._cache[address]
elif isinstance(fut, _WaitCancelFuture):
# _WaitCancelFuture must not be cancelled
pass
else:
try:
fut.cancel()