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bpo-46364: Use sockets for stdin of asyncio only on AIX (GH-30596)

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Signed-off-by: Christoph Hamsen <hamsen.christoph@posteo.de>
Co-authored-by: July Tikhonov <july.tikh@gmail.com>
(cherry picked from commit c9ed0327a9)

Co-authored-by: Christoph Hamsen <37963496+xopham@users.noreply.github.com>
This commit is contained in:
Miss Islington (bot) 2022-10-13 10:27:31 -07:00 • committed by GitHub
parent c7761bbc32
commit 595ef03c7c
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3 changed files with 24 additions and 4 deletions
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7
Lib/asyncio/unix_events.py
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@ -800,12 +800,11 @@ class _UnixSubprocessTransport(base_subprocess.BaseSubprocessTransport):
def _start(self, args, shell, stdin, stdout, stderr, bufsize, **kwargs):
stdin_w = None
if stdin == subprocess.PIPE:
# Use a socket pair for stdin, since not all platforms
if stdin == subprocess.PIPE and sys.platform.startswith('aix'):
# Use a socket pair for stdin on AIX, since it does not
# support selecting read events on the write end of a
# socket (which we use in order to detect closing of the
# other end). Notably this is needed on AIX, and works
# just fine on other platforms.
# other end).
stdin, stdin_w = socket.socketpair()
try:
self._proc = subprocess.Popen(