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asyncio: Fix _ProactorWritePipeTransport._pipe_closed()

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Do nothing if the pipe is already closed. _loop_writing() may call
_force_close() when it gets ConnectionResetError.
This commit is contained in:
Victor Stinner 2014-02-04 08:57:48 +01:00
parent 1703bbbf89
commit 83bdfa08f7
1 changed files with 4 additions and 1 deletions
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5
Lib/asyncio/proactor_events.py
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@ -304,9 +304,12 @@ class _ProactorWritePipeTransport(_ProactorBaseWritePipeTransport):
if fut.cancelled():
# the transport has been closed
return
assert fut.result() == b''
if self._closing:
assert self._read_fut is None
return
assert fut is self._read_fut, (fut, self._read_fut)
self._read_fut = None
assert fut.result() == b''
if self._write_fut is not None:
self._force_close(exc)
else: