--81GGuop5WtosZG1KPHQ
Content-Type: MULTIPART/Mixed; BOUNDARY="=-Z81GGuop5WtosZG1KPHQ"

  This message is in MIME format.  The first part should be readable text,
  while the remaining parts are likely unreadable without MIME-aware tools.

--81GGuop5WtosZG1KPHQ
Content-Type: TEXT/PLAIN; CHARSET=US-ASCII; format=flowed
Content-ID: <Pine.LNX.4.62.0509250937022.25500 / harp.ngdc.noaa.gov>

On Sun, 25 Sep 2005, Andrew S. Townley wrote:

>
> Hi folks,
>
> I was playing with Open3.popen3 to try and manipulate some child
> processes where I needed both the return code and control of stderr, but
> it didn't seem to return the correct exit status.  I don't know if this
> is correct or not, but it seems to do what I think it should.
> Maybe there's a lot of code that depends on the existing behavior, but I
> think with the version in 1.8, you never get the return status of the
> grandchild process.  Oh, and I also cleaned up the formatting (changed
> tabs to spaces).
>
> I've attached the patch (generated by: $ diff -urN -F^f
> /usr/lib/ruby/1.8/open3.rb open3.rb >/tmp/open3.patch) if anyone's
> interested.

session allows you to do this - but you'll running through sh/bash like:

   require 'session'

   sh  ession::new

   stdout, stdout  h.exexute 'a.out'
   exit_status  h.exit_status

session is also thread safe.

another thing you might be interested in is open4, eg:

   pid, stdin, stdout, stderr  pen4::popen4 'a.out'
   exit_status  rocess::waitpid2(cid).exitstatus

both are at

   http://codeforpeople.com/lib/ruby
   http://codeforpeople.com/lib/ruby/session/
   http://codeforpeople.com/lib/ruby/open4/

and listed on the raa.

cheers.

-a
-- 
| email :: ara [dot] t [dot] howard [at] noaa [dot] gov
| phone :: 303.497.6469
| Your life dwells amoung the causes of death
| Like a lamp standing in a strong breeze.  --Nagarjuna
-81GGuop5WtosZG1KPHQ
Content-Type: TEXT/X-PATCH; NAME=open3.patch; CHARSET=ANSI_X3.4-1968
Content-Transfer-Encoding: BASE64
Content-ID: <Pine.LNX.4.62.0509250937023.25500 / harp.ngdc.noaa.gov>
Content-Description: 
Content-Disposition: ATTACHMENT; FILENAME=open3.patch
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--81GGuop5WtosZG1KPHQ--
--81GGuop5WtosZG1KPHQ--