Hi, Would it be possible to use os.pipe() on all OSes except AIX?
Pipes and socket pairs may have minor differences, but some applications may rely on these minor differences. For example, is the buffer size the same? For example, in test.support, we have two constants: PIPE_MAX_SIZE (4 MB) and SOCK_MAX_SIZE (16 MB). Victor 2013/10/22 guido.van.rossum <python-check...@python.org>: > http://hg.python.org/cpython/rev/2a0bda8d283d > changeset: 86557:2a0bda8d283d > user: Guido van Rossum <gu...@dropbox.com> > date: Mon Oct 21 20:37:14 2013 -0700 > summary: > Switch subprocess stdin to a socketpair, attempting to fix issue #19293 > (AIX hang). > > files: > Lib/asyncio/unix_events.py | 29 +++++++++- > Lib/test/test_asyncio/test_unix_events.py | 7 ++ > 2 files changed, 32 insertions(+), 4 deletions(-) > > > diff --git a/Lib/asyncio/unix_events.py b/Lib/asyncio/unix_events.py > --- a/Lib/asyncio/unix_events.py > +++ b/Lib/asyncio/unix_events.py > if stdin == subprocess.PIPE: > self._pipes[STDIN] = None > + # Use a socket pair for stdin, since not all platforms > + # 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. > + stdin, stdin_w = self._loop._socketpair() > if stdout == subprocess.PIPE: > self._pipes[STDOUT] = None > if stderr == subprocess.PIPE: _______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
