Re: Killing another process from C code

From: Kasper Dupont (kasperd_at_daimi.au.dk)
Date: 03/17/04 

Date: Wed, 17 Mar 2004 13:48:50 +0100

"Basile Starynkevitch [news]" wrote:
>
> The application should remember forked pids. The parent process
> should, when fork()-ing, remember the child pid and then kill it
> appropriately.

Yes, when you know the pid there is no point in
using other unreliable ways to try guessing which
process is the right one to kill.

> Hence the parent is able to use the kill system call
> kill(pid,SIGTERM) and then kill(pid, SIGKILL).

That is the way to do it. You should add a delay
between the two calls so the process have a chance
to shut down cleanly (if by any means possible).
I'm not sure what is the right way to wait for a
process to terminate with a timeout. Neither
select nor waitpid seems obvious. I have seen
scripts looking a few times starting with short
intervals and graduately increasing the interval. 

-- 
Kasper Dupont -- der bruger for meget tid paa usenet.
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