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bpo-41467: Fix asyncio recv_into() on Windows (GH-21720) 

On Windows, fix asyncio recv_into() return value when the socket/pipe
is closed (BrokenPipeError): return 0 rather than an empty byte
string (b'').
(cherry picked from commit 602a971a2a)

Co-authored-by: Victor Stinner <vstinner@python.org>
This commit is contained in:
Miss Islington (bot) 2020-08-03 17:58:06 -07:00 committed by GitHub
parent 4bc8445c39
commit b934d832d1
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2 changed files with 4 additions and 1 deletions
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2
Lib/asyncio/windows_events.py
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@ -469,7 +469,7 @@ class IocpProactor:
else:
ov.ReadFileInto(conn.fileno(), buf)
except BrokenPipeError:
return self._result(b'')
return self._result(0)
def finish_recv(trans, key, ov):
try:

3
Misc/NEWS.d/next/Library/2020-08-04-00-20-30.bpo-41467.Z8DgTL.rst Normal file
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@ -0,0 +1,3 @@
On Windows, fix asyncio ``recv_into()`` return value when the socket/pipe is
closed (:exc:`BrokenPipeError`): return ``0`` rather than an empty byte
string (``b''``).