On Sat, May 10, 2003 at 02:29:54AM -0400, Chris Friesen wrote:
> I see two immediate uses for this. One would be to enable a "watcher"
> process which can do useful things on the death of processes which
> registered with it (logging, respawning, notifying other processes,
> etc).
Do it from user space, kill(pid, 0), check for ESRCH. I might see the
benefit of a new system call if it was synchronous (wait() semantics),
but since signal delivery is asynch anyway....
> The second would be to enable mutual
> suicide pacts between processes. (I'm not sure when I would use this, but
> it sounds kind of fun.)
Same thing, kill(pid, 0).
> Anyone have any opinions on this?
There's already a well established way to do what you want (get
non-immediate notification of process death). What benefit would your
approach give?
-- Muli Ben-Yehuda http://www.mulix.org
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