8000 gh-93821: Fix bug that accepting a socket connection and ERROR_NETNAME_DELETED occurs causes serving socket to be closed by StanHatko · Pull Request #124032 · python/cpython · GitHub
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gh-93821: Fix bug that accepting a socket connection and ERROR_NETNAME_DELETED occurs causes serving socket to be closed #124032

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gh-93821: Fix bug that accepting a socket connection and ERROR_NETNAME_DELETED occurs causes serving socket to be closed #124032

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15d44ad
Fix bug that when accepting a socket connection and ERROR_NETNAME_DEL…
StanHatko Sep 13, 2024
b61114c
On UNIX-like systems don't fail because winerror is not available
StanHatko Sep 13, 2024
a5fcc88
Omit unnecessary winerror check and improve comment
StanHatko Sep 13, 2024
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Omit unnecessary winerror check and improve comment 
No need for checking winerror present as windows_events.py only imported on Windows (with check near top).

Make comment more clear as to purpose of this patch.
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@StanHatko
StanHatko authored Sep 13, 2024
commit a5fcc88b56922761a0dfd8f5978f2926ca54a328
7 changes: 3 additions & 4 deletions Lib/asyncio/windows_events.py
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Original file line number Diff line number Diff line change
Expand Up @@ -556,10 +556,9 @@ def finish_accept(trans, key, ov):
try:
ov.getresult()
except OSError as exc:
# Fix bug when accepting a socket connection and ERROR_NETNAME_DELETED
# occurs, leads this into a closing of the serving socket.
if hasattr(exc, 'winerror') and exc.winerror in (
_overlapped.ERROR_NETNAME_DELETED,
# If ERROR_NETNAME_DELETED or ERROR_OPERATION_ABORTED occur,
# do not close the serving socket.
if exc.winerror in (_overlapped.ERROR_NETNAME_DELETED,
_overlapped.ERROR_OPERATION_ABORTED):
conn.close()
raise ConnectionResetError(*exc.args)
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