Hi,
Setting $SIG{CHLD} = 'IGNORE' works intermittently, and I'm guessing
that's because now I'm ignoring the status all together sometimes.
Better then before, but rather unreliable. I tried some variations with
$SIG{CHLD} but no improvements over just using 'IGNORE'.
Thanks for the tip. Any more/other ideas how I could get a successful and
reliable indication every time?
Daniel
On Mon, Jul 18, 2005 at 03:17:42PM +0000, Ed Grimm wrote:
> On Fri, 15 Jul 2005, Daniel wrote:
>
> > Sometimes I see strange numbers when handling exit status from system
> > calls.
> >
> > my $out = `$cmd`;
> > my $stat = $? >> 8;
> >
> > and $stat may contain anumber like 16777215 at this point, whereas on
> > commandline it would be more like 2, or no error at all (0).
>
> I'd think it would always be 16777215 in this situation. I believe your
> children are being automatically reaped, as described in the perlfunc
> manpage under wait (system references wait as the source of its return
> code.) IIRC, to get perl to stop auto-reaping ones process children,
> one sets $SIG{CLD} to a reap function.
>
> Ed
>
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