Date: Thu, 24 Oct 1996 13:44:21 +0200 (IST)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
To: Orlando Andico <orly AT gibson DOT eee DOT upd DOT edu DOT ph>
Cc: Juanjo Erauskin <juanjo AT jet DOT es>, djgpp AT delorie DOT com
Subject: Re: Problem with popen()
In-Reply-To: <Pine.SGI.3.93.961024111636.1771D-100000@gibson.eee.upd.edu.ph>
Message-Id: <Pine.SUN.3.91.961024133952.9865B-100000@is>
Mime-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII


On Thu, 24 Oct 1996, Orlando Andico wrote:

> are pipes SUPPORTED under DJGPP? how can you do this when there's no
> multitasking?

Why don't you wonder how does COMMAND.COM allow pipes?

The popen/pclose paradigm is supported by redirecting the input or output
of the child to a file.  Since pclose on Unix waits until the child exits,
you don't need multitasking to implement it.  The `pipe' function is not
supported because it *does* require multitasking.