From: "Ara.T.Howard" <ahoward@...>
Date: 2004-03-26T02:44:29+09:00
Subject: Re: [ANN] session-2.1.5

On Fri, 26 Mar 2004, Richard Kilmer wrote:

> This totally kicks butt!

thanks.  it's been really useful thus far.


> Would you consider making a RubyForge project out of it?

sure.  i've just got too much going on at the moment to breath...  any advice
on the subject?

> I am definitely going to use this here at DARPA.

cool.  feel free to contact me directly with any comments, especially those
containing patches!  ;-)


cheers.

-a

> 
> best,
> 
> Rich
> On Mar 25, 2004, at 11:34 AM, Ara.T.Howard wrote:
> 
> >
> >
> > http://www.codeforpeople.com/lib/ruby/session/
> >
> >
> > 2.1.5:
> >   - added Session.use_spawn=, AbstractSession.use_spawn=, and an  
> > :use_session=>
> >     option to AbstractSession#initialize.  if any of them are set the  
> > code uses
> >     Spawn::spawn to create external processes instead of Open3::popen3.
> >     Spawn::spawn uses named pipes (fifos) for IPC instead of forking  
> > and pipes.
> >     the fork used in popen3 can cause strange behaviour with  
> > multi-threaded apps
> >     (like a tk app).  see source for details
> >
> >
> > NAME
> >
> >   Session
> >     ::Sh
> >     ::Bash
> >     ::Csh
> >     ::Tcsh
> >     ::Shell
> >     ::IDL
> >
> > SYNOPSIS
> >
> >   Session::* offers a set of class for driving external progams via  
> > pipes.  It
> >   offers a significant abstraction over Open3::popen since  
> > stdout/stderr can
> >   be processed individually for each command.  Additionally the  
> > exit_status of
> >   each command is made available.  eg.
> >
> >     bash = Session::Bash.new
> >
> >     stdout, stderr = bash.execute 'ls'
> >
> >
> >   or
> >
> >     bash = Session::Bash.new
> >
> >     stdout, stderr = StringIO.new, StringIO.new
> >
> >     bash.execute 'ls', :stdout => stdout, :stderr => stderr
> >     exit_status = bash.exit_status
> >
> >   or
> >
> >     bash = Session::Bash.new
> >
> >     # output is passed to the block as it is produced!
> >     bash.execute( 'long_running_command.exe' ) do |out, err|
> >       logger << out if out
> >       elogger << err if err
> >     end
> >
> > SAMPLES
> >
> >   see samples/*
> >
> >
> > AUTHOR
> >
> >   ara.t.howard@noaa.gov
> >
> >
> > -a
> > --  
> > ======================================================================= 
> > ========
> > | EMAIL   :: Ara [dot] T [dot] Howard [at] noaa [dot] gov
> > | PHONE   :: 303.497.6469
> > | ADDRESS :: E/GC2 325 Broadway, Boulder, CO 80305-3328
> > | URL     :: http://www.ngdc.noaa.gov/stp/
> > | TRY     :: for l in ruby perl;do $l -e "print  
> > \"\x3a\x2d\x29\x0a\"";done
> > ======================================================================= 
> > ========
> >
> >
> >
> 
> 
> 
> 

-- 
===============================================================================
| EMAIL   :: Ara [dot] T [dot] Howard [at] noaa [dot] gov
| PHONE   :: 303.497.6469
| ADDRESS :: E/GC2 325 Broadway, Boulder, CO 80305-3328
| URL     :: http://www.ngdc.noaa.gov/stp/
| TRY     :: for l in ruby perl;do $l -e "print \"\x3a\x2d\x29\x0a\"";done 
===============================================================================