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bpo-43253: Don't call shutdown() for invalid socket handles (GH-31892)

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(cherry picked from commit 70155412f1)

Co-authored-by: Maximilian Hils <git@maximilianhils.com>
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Miss Islington (bot) 2022-03-15 08:23:47 -07:00 • committed by GitHub
parent 91dfa917e5
commit 64a68c39cb
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3 changed files with 10 additions and 1 deletions
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Lib/asyncio/proactor_events.py
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@ -158,7 +158,7 @@ class _ProactorBasePipeTransport(transports._FlowControlMixin,
# end then it may fail with ERROR_NETNAME_DELETED if we
# just close our end. First calling shutdown() seems to
# cure it, but maybe using DisconnectEx() would be better.
if hasattr(self._sock, 'shutdown'):
if hasattr(self._sock, 'shutdown') and self._sock.fileno() != -1:
self._sock.shutdown(socket.SHUT_RDWR)
self._sock.close()
self._sock = None