Re: [RFC] Option to kill `emacs --daemon' when closing the last client frame

[Jim Porter]

On 10/24/2021 11:19 PM, Jean Louis wrote:
> * Stefan Monnier <monnier@iro.umontreal.ca> [2021-10-22 14:59]:
> > I guess it would make sense to try and distinguish the two cases:
> >
> > - Eager: `emacs --daemon` is run (typically from something like a login
> >    script or systemd) before any emacsclient is involved.
> > - Lazy: `emacs --daemon` is started on-demand by the `-a` option
> >    of `emacsclient` (or via ALTERNATE_EDITOR).
> >
> > In the lazy case, we could kill the daemon when the last client exits.
>
> Can the variable `server-clients' help to detect how many clients are there?
>
> Then if so, one can make Emacs Lisp function and put in
> configuration file, then such user can have the Emacs Daemon
> killed if last client is closed.

Yup, that's what I'm doing now. I use a slightly-tweaked version of the 
patch I posted to bug#51377[1] in my configuration. While I'm happy with 
my configuration now, I wanted to propose adding those changes to Emacs 
itself (with options to tweak the behavior as appropriate) if others 
would find it useful.

- Jim

[1] https://lists.gnu.org/archive/html/bug-gnu-emacs/2021-10/msg02209.html