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From: "Dave Korn" <dk AT artimi DOT com>
To: "'John Cooper'" <John DOT Cooper AT eu DOT citrix DOT com>, <cygwin AT cygwin DOT com>
Subject: RE: Ctrl-Z fails to suspend Windows programs
Date: Tue, 15 Jun 2004 15:40:11 +0100
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In-Reply-To: <87isdsc3xl.fsf@eu.citrix.com>
Message-ID: <NUTMEGY7PeGbPn6U9Be0000038b@NUTMEG.CAM.ARTIMI.COM>
X-OriginalArrivalTime: 15 Jun 2004 14:40:11.0875 (UTC) FILETIME=[A9D91B30:01C452E6]

> -----Original Message-----
> From: cygwin-owner On Behalf Of John Cooper
> Sent: 15 June 2004 15:05
> To: cygwin
> Subject: RE: Ctrl-Z fails to suspend Windows programs
> 
> The old native (non-cygwin) port of zsh would somehow detect 
> if it was about to
> exec a Windows app, and run it as a background process, thus 
> returning a zsh
> prompt immediately.  Could something like this be added to 
> cygwin bash/zsh?

  AFAICS the ability is already there.  Just enter "windows_app.exe &" at a
bash shell.

> This was very useful.  With the cygwin zsh, I often find 
> myself invoking a
> Windows app and not being able to get back to the shell 
> window without first
> terminating the Windows app.

Well, the same goes if you run a cygwin app: you don't get the prompt back
until it exits.
 
The point is that it's not about cygwin-vs-windoze apps.  It's about
apps-that-use-console-stdin-and-stdout vs. apps-that-display-a-gui; those
that show a gui could usefully be detached, but those that read their input
from stdin will break if the shell detaches them.  I don't think there's a
reliable enough mechanism by which a shell could detect one case from the
other.

Try starting insight (gui version of gdb) from the bash prompt.  You also
won't get a shell back until it exits.


    cheers, 
      DaveK
-- 
Can't think of a witty .sigline today....


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