From: Jason Wold <jason.wold@...>
Date: 2004-04-28T16:06:13+09:00
Subject: Re: popen, popen3, and leftover processes

Ah, but I just noticed that popen3 doesn't save the pid info on any of
the IO objects it returns.  bug or missing feature?

On Wed, 28 Apr 2004 00:00:31 -0700, Jason Wold <jason.wold@gmail.com> wrote:
> 
> >io=IO.popen("sleep 1000")
> => #<IO:0x40140a8c>
> 
> >io.pid
> => 2676
> 
> >puts `ps auwx | grep sleep`
> ital      2676  0.0  0.1  1900  472 pts/0    S    23:58   0:00 sleep 1000
> ital      2677  0.0  0.3  2048  872 pts/0    S    23:59   0:00 sh -c
> ps auwx | grep sleep
> ital      2679  0.0  0.1  1500  432 pts/0    S    23:59   0:00 grep sleep
> => nil
> 
> 
> 
> On Wed, 28 Apr 2004 15:52:49 +0900, Hal Fulton <hal9000@hypermetrics.com> wrote:
> >
> > I'm getting processes left lying around when I do things
> > like
> >
> >    io = IO.popen("foo")  # or...
> >    inp, out, err = Open3.popen3("foobar")
> >
> > I've tried such things as closing the io object, but to
> > no avail.
> >
> > I see no way of retrieving the pid in either case.
> >
> > What can I do?
> >
> > Thanks,
> > Hal
> >
> >
>