[Python-checkins] CVS: python/dist/src/Lib tempfile.py,1.37,1.38

[Neil Schemenauer]

Update of /cvsroot/python/python/dist/src/Lib
In directory usw-pr-cvs1:/tmp/cvs-serv5994/Lib

Modified Files:
	tempfile.py 
Log Message:
If possible, set FD_CLOEXEC flag on file descriptors opened using
TemporaryFile.  This flag causes the fd to be closed on exec().


Index: tempfile.py
===================================================================
RCS file: /cvsroot/python/python/dist/src/Lib/tempfile.py,v
retrieving revision 1.37
retrieving revision 1.38
diff -C2 -d -r1.37 -r1.38
*** tempfile.py	30 Jan 2002 09:11:42 -0000	1.37
--- tempfile.py	24 Mar 2002 22:21:48 -0000	1.38
***************
*** 181,184 ****
--- 181,195 ----
          return a
  
+ try:
+     import fcntl as _fcntl
+     def _set_cloexec(fd, flag=_fcntl.FD_CLOEXEC):
+         flags = _fcntl.fcntl(fd, _fcntl.F_GETFD, 0)
+         if flags >= 0:
+             # flags read successfully, modify
+             flags |= flag
+             _fcntl.fcntl(fd, _fcntl.F_SETFD, flags)
+ except (ImportError, AttributeError):
+     def _set_cloexec(fd):
+         pass
  
  def TemporaryFile(mode='w+b', bufsize=-1, suffix=""):
***************
*** 188,191 ****
--- 199,203 ----
          # Unix -- be very careful
          fd = os.open(name, os.O_RDWR|os.O_CREAT|os.O_EXCL, 0700)
+         _set_cloexec(fd)
          try:
              os.unlink(name)