[Python-checkins] cpython: Issue #16860: In tempfile, use O_CLOEXEC when available to set the

[charles-francois.natali]

http://hg.python.org/cpython/rev/64883c614c88
changeset:   81282:64883c614c88
parent:      81280:fee4bc043d73
user:        Charles-François Natali <neologix at free.fr>
date:        Fri Jan 04 18:33:02 2013 +0100
summary:
  Issue #16860: In tempfile, use O_CLOEXEC when available to set the
close-on-exec flag atomically.

files:
  Lib/tempfile.py |  2 ++
  Misc/NEWS       |  3 +++
  2 files changed, 5 insertions(+), 0 deletions(-)


diff --git a/Lib/tempfile.py b/Lib/tempfile.py
--- a/Lib/tempfile.py
+++ b/Lib/tempfile.py
@@ -57,6 +57,8 @@
 _allocate_lock = _thread.allocate_lock
 
 _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'):
     _text_openflags |= _os.O_NOINHERIT
 if hasattr(_os, 'O_NOFOLLOW'):
diff --git a/Misc/NEWS b/Misc/NEWS
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -204,6 +204,9 @@
 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 #16009: JSON error messages now provide more information.

-- 
Repository URL: http://hg.python.org/cpython