GNU bug report logs - #17036
Continuation for Emacs: invoking a process on exit?

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Reuben Thomas <rrt <at> sc3d.org>
Cc: 17036 <at> debbugs.gnu.org, schwab <at> linux-m68k.org, monnier <at> iro.umontreal.ca
Subject: bug#17036: Continuation for Emacs: invoking a process on exit?
Date: Fri, 21 Mar 2014 12:18:34 +0200

> Date: Fri, 21 Mar 2014 10:09:10 +0000
> From: Reuben Thomas <rrt <at> sc3d.org>
> Cc: Stefan Monnier <monnier <at> iro.umontreal.ca>, Andreas Schwab <schwab <at> linux-m68k.org>, 
> 	17036 <at> debbugs.gnu.org
> 
> > As long as it does what you want, fine.  But please note that this is
> > not the same as exiting Emacs and starting a new session, because the
> > original Emacs didn't shut down all the way, and the PID is the same.
> >
> 
> I think I'm still being unclear, sorry.
> 
> I am assuming that all the regular atexit handlers have already been
> called, and that Emacs is really about to exit. (That is what I mean by
> saying that kill-emacs has been run.) So, this could be implemented by
> ensuring that the first atexit handler to be registered on startup checks a
> "kill-emacs-and-exec" flag, and if it is set, does the exec.

Assuming a call to 'exec' is allowed in an atexit handler.  (I don't
know if it is.)

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