Re: [Nicolas Graves] [PATCH v6 01/10] rde: emacs: Start emacs in --daemon mode, with shepherd and pid-file

["Björn Bidar" <bjorn.bidar@thaodan.de>]

Stefan Monnier <monnier@iro.umontreal.ca> writes:

>> Maybe some feedback on the Emacs side about this? There are indeed very
>> few places where systemd sd_* functions are called in emacs.c, should we
>> try and re-implement them instead of using the library as is? Would that
>> be a contribution Emacs devs would be interested in? That would
>> definitely be beneficial for Emacs on Guix as highlighted by Ludo'.
>
> It's hard to tell without seeing the actual patch.
>
> But if the code is sufficiently simple, it implements a protocol that's
> well documented, and it allows us to eliminate the dependency on the
> systemd library, we might like it.

Would that make sense on systems where systemd is used? If libsystem is
already installed it would be more convenient for the user to use the
already installed and very likely loaded libsystemd instead of
reimplementing the feature.

Ideally the support for other initrd system could implement a function
that is then called instead of the systemd codepath  be it something
different or to reimplenent sd-notify. Maybe shepherd as something like
sd-notify of it's own?