From: Han Holl <han.holl@...>
Date: 2007-10-06T05:45:19+09:00
Subject: Re: Signal handling strangeness (Linux)

On 10/5/07, Paul Brannan <pbrannan@atdesk.com> wrote:

>
> I see no way to close the fd without waiting on the child process, so if
> you want this behavior, don't use popen (you can use Open3.popen3
> instead).
>
The following works:
trap('TERM') do
   exit!
end
so it would seem that 'waitpid() is closely related to the atexit() functions.
The following would be nice to have:
trap('TERM') do
   kill child_process
end
This woulr let me do at_exit processing as well.
But I haven't found out how to get the pid of the child with IO.popen.

Cheers

Han Holl