> Hmm, and of course this does not work since the timeout kill process is
> around. Maybe we should make this process a separate process group from
> the start, what about calling setpgid(0, 0) instead of setting up the
> signal handler? That way we can send the signals to the whole process
> group and make sure everything has been cleaned up.
>

Agreed, that sounds like a great method.

-- 
Regards,
Li Wang