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Issue #18571: Implementation of the PEP 446: file descriptors and file handles

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are now created non-inheritable; add functions os.get/set_inheritable(),
os.get/set_handle_inheritable() and socket.socket.get/set_inheritable().
This commit is contained in:
Victor Stinner 2013-08-28 00:53:59 +02:00
parent 46e1ce214b
commit daf455554b
51 changed files with 1448 additions and 317 deletions
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9
Lib/subprocess.py
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@ -405,7 +405,6 @@ else:
import select
_has_poll = hasattr(select, 'poll')
import _posixsubprocess
_create_pipe = _posixsubprocess.cloexec_pipe
# When select or poll has indicated that the file is writable,
# we can write up to _PIPE_BUF bytes without risk of blocking.
@ -1258,7 +1257,7 @@ class Popen(object):
if stdin is None:
pass
elif stdin == PIPE:
p2cread, p2cwrite = _create_pipe()
p2cread, p2cwrite = os.pipe()
elif stdin == DEVNULL:
p2cread = self._get_devnull()
elif isinstance(stdin, int):
@ -1270,7 +1269,7 @@ class Popen(object):
if stdout is None:
pass
elif stdout == PIPE:
c2pread, c2pwrite = _create_pipe()
c2pread, c2pwrite = os.pipe()
elif stdout == DEVNULL:
c2pwrite = self._get_devnull()
elif isinstance(stdout, int):
@ -1282,7 +1281,7 @@ class Popen(object):
if stderr is None:
pass
elif stderr == PIPE:
errread, errwrite = _create_pipe()
errread, errwrite = os.pipe()
elif stderr == STDOUT:
errwrite = c2pwrite
elif stderr == DEVNULL:
@ -1334,7 +1333,7 @@ class Popen(object):
# For transferring possible exec failure from child to parent.
# Data format: "exception name:hex errno:description"
# Pickle is not used; it is complex and involves memory allocation.
errpipe_read, errpipe_write = _create_pipe()
errpipe_read, errpipe_write = os.pipe()
try:
try:
# We must avoid complex work that could involve