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authorVictor Stinner <victor.stinner@gmail.com>2015-01-21 23:17:54 (GMT)
committerVictor Stinner <victor.stinner@gmail.com>2015-01-21 23:17:54 (GMT)
commit1ca9392c7083972c1953c02e6f2cca54934ce0a6 (patch)
tree643e259e9c3947358d7d4eacff46cd9c76ce33bf /Lib/asyncio/windows_events.py
parent0c2e4088334906bd883caabe3573bba3f82d0819 (diff)
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Issue #23095, asyncio: IocpProactor.close() must not cancel pending
_WaitCancelFuture futures
Diffstat (limited to 'Lib/asyncio/windows_events.py')
-rw-r--r--Lib/asyncio/windows_events.py6
1 files changed, 6 insertions, 0 deletions
diff --git a/Lib/asyncio/windows_events.py b/Lib/asyncio/windows_events.py
index 5105426..3cb5690f 100644
--- a/Lib/asyncio/windows_events.py
+++ b/Lib/asyncio/windows_events.py
@@ -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()