From: nobu.nokada@...
Date: 2003-04-09T14:38:05+09:00
Subject: Re: exit status from popen3

Hi,

At Tue, 8 Apr 2003 03:20:31 +0900,
Daniel Bretoi wrote:
> Why is it spawning a grandchild process?

To get rid of leave defunct processes.

> I got rid of that and it
> appears to work just as well. (changing the exit! to exit! $?>>8)

Possibly, you ran another subprocess before popen3?

$ ruby -I/tmp -ropen3 -e 'Open3.popen3("ls"); p $?'
/tmp/open3.rb:35:in `popen3': undefined method `>>' for nil (NoMethodError)
        from /tmp/open3.rb:17:in `fork'
        from /tmp/open3.rb:36:in `popen3'
        from -e:1
256

# I'm not sure thread/method local variables should be also
# process local.

-- 
Nobu Nakada