Robert Merrill added the comment:
I'm adding Library again because I think the current behavior is a bug and
should be fixed in the 2.7 tree. Perhaps the documentation in older versions
should be updated
mmap.mmap should always set the FD_CLOEXEC flag on the descriptor that it gets
from dup
Robert Merrill added the comment:
Sorry, I correct my earlier statement: even if the fd you pass to mmap.mmap()
is set to FD_CLOEXEC, the dup'd fd /will not be/
So this is a REALLY bad bug because users cannot workaround it except by just
not using mmap
New submission from Robert Merrill:
Same code but different problem as this issue: http://bugs.python.org/issue10897
The above-linked issue was closed as WONTFIX, but there is a secondary problem:
the file descriptor that mmap.mmap() allocates is not set to close-on-exec.
This means that any
Robert Merrill added the comment:
I should add a caveat: the fd that is created by mmap /will/ be set to
close-on-exec if the fd you passed in was. But even if it's not, I see no
reason why mmap should not be setting it anyway.
At the very least, the documentation should bring the user's
