is there a version of waitpid() that will sit and wait until a child of a
different process has ded/exited?
thanks again
Dave Kennedy
Champaign Underwater Hockey
by dave michael kenned » Thu, 15 Mar 2001 06:50:55
thanks again
Dave Kennedy
Champaign Underwater Hockey
by Kaz Kylhe » Thu, 15 Mar 2001 09:57:47
by Benoit Mordele » Thu, 15 Mar 2001 18:44:36
> On Tue, 13 Mar 2001 15:50:55 -0600, dave michael kennedy
> >is there a version of waitpid() that will sit and wait until a child of a
> >different process has ded/exited?
> No.
ben
by ChromeDom » Fri, 16 Mar 2001 13:24:32
> Kaz Kylheku a crit :
> > On Tue, 13 Mar 2001 15:50:55 -0600, dave michael kennedy
> > >is there a version of waitpid() that will sit and wait until a child of a
> > >different process has ded/exited?
> > No.
> maybe you could write your own function that regularly calls stat(2) on
> /proc/<pid> in order to know if the process is still alive. but you
> won't get any exit code like this. this may also be a non portable
> solution.
> ben
Gene
--
Homo Sapiens is a goal, not a description.
by Kaz Kylhe » Sat, 17 Mar 2001 00:33:06
by Benoit Mordele » Fri, 16 Mar 2001 17:33:39
> > Kaz Kylheku a crit :
> > > On Tue, 13 Mar 2001 15:50:55 -0600, dave michael kennedy
> > > >is there a version of waitpid() that will sit and wait until a child of a
> > > >different process has ded/exited?
> > > No.
> > maybe you could write your own function that regularly calls stat(2) on
> > /proc/<pid> in order to know if the process is still alive. but you
> > won't get any exit code like this. this may also be a non portable
> > solution.
> > ben
> Why not call kill with a signal of zero? That should be portable.
ben
by Benoit Mordele » Sat, 17 Mar 2001 01:31:18
> On Thu, 15 Mar 2001 09:33:39 +0100, Benoit Mordelet
> >what is it supposed to do ? according to kill(2) man page, it should
> >return EINVAL in errno because 0 isn't a valid signal (the first one,
> >SIGHUP, is 1) and that's all.
> Read that bit of text just above the RETURN VALUE section.
ben
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