> r u sure, this program works?
Yes :)
> Sorry if I am saying something dumb here.
> Correct me. When a file descriptor is sent from one process to other,
> arn't they referring to different files in each of the processes.
> fd=5 may be pointing to file 'xyz' in parent process,
> where as fd=5 will be pointing to 'abc' in the child process.
See 'man 7 unix' SCM_RIGHTS.
How do you know the program did not work?
Note: the program starts a new shell, it doesn't exit! Do this in the
started shell (do not 'cd' before it):
ls tmp/clonetest/mnt
ls /tmp/clonetest/mnt
If you see different things, then the program worked.
It's not such a magic thing. You can also do something similar for
example by:
shell1> mount --bind / /tmp/mnt
shell1> cd /tmp/mnt
sheel2> umount -l /tmp/mnt
Now shell1 sees two separate "namespaces" in in CWD and /
Miklos
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
