From: neil <neil@...>
Date: 2002-05-06T03:52:50+09:00
Subject: Re: defunct child process

Mark Slagell wrote:
> 
> neil wrote:
> 
> >neil wrote:
> >
> >
> >>I cannot claim this the correct way,
> >>though it is based on some Pick Axe
> >>code,
> >>
> >>
> >
> >Sorry that got mangled,
> >
> > trap("CLD"){ # child finished
> >         begin
> >           waitpid(Process.wait,
> >Process::WNOHANG)
> >           rescue StandardError
> >             break
> >           end
> >        }
> >
> > and get the Procees.uid if you want to
> >
> >
> 
> Or you might find it sufficient to say
> 
> trap('CLD') {Process.wait2}
> 
>   -- Mark

 True, though without the rescue you can
get an fatal error 
 with Process.wait2, "failed to convert
array into an integer"
 and again fatal with
Process.wait::WNOHANG No child processes
(Errno::ECHILD) 
 The break is redundant, sorry is a bit
of left over code.

 Neil
-- 
http://www.quill.plus.com