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Issue #16860: In tempfile, use O_CLOEXEC when available to set the

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close-on-exec flag atomically.
This commit is contained in:
Charles-François Natali 2013-01-04 18:33:02 +01:00
parent 4e02538bf3
commit b9a76e2920
2 changed files with 5 additions and 0 deletions
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2
Lib/tempfile.py
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@ -57,6 +57,8 @@ except ImportError:
_allocate_lock = _thread.allocate_lock _allocate_lock = _thread.allocate_lock
_text_openflags = _os.O_RDWR | _os.O_CREAT | _os.O_EXCL _text_openflags = _os.O_RDWR | _os.O_CREAT | _os.O_EXCL
if hasattr(_os, 'O_CLOEXEC'):
_text_openflags |= _os.O_CLOEXEC
if hasattr(_os, 'O_NOINHERIT'): if hasattr(_os, 'O_NOINHERIT'):
_text_openflags |= _os.O_NOINHERIT _text_openflags |= _os.O_NOINHERIT
if hasattr(_os, 'O_NOFOLLOW'): if hasattr(_os, 'O_NOFOLLOW'):

3
Misc/NEWS
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@ -204,6 +204,9 @@ Core and Builtins
Library Library
------- -------
- Issue #16860: In tempfile, use O_CLOEXEC when available to set the
close-on-exec flag atomically.
- Issue #16674: random.getrandbits() is now 20-40% faster for small integers. - Issue #16674: random.getrandbits() is now 20-40% faster for small integers.
- Issue #16009: JSON error messages now provide more information. - Issue #16009: JSON error messages now provide more information.