[systemd-devel] On(Resume|suspend|hibernate) in unit files?

[Tom Gundersen]

On Thu, Feb 28, 2013 at 5:51 PM, Frederic Crozat <fcrozat at suse.com> wrote:
> Le jeudi 28 février 2013 à 15:55 +0000, Colin Guthrie a écrit :
>> 'Twas brillig, and Lennart Poettering at 28/02/13 12:37 did gyre and gimble:
>> > On Wed, 27.02.13 22:22, Cristian Rodríguez (crrodriguez at opensuse.org) wrote:
>> >
>> >> Hi:
>> >>
>> >> There is buggy, legacy software around which simply does not behave
>> >> properly when faced with resume/suspend/hibernate which is not
>> >> always practical to modify or fix.
>> >>
>> >> Is there any way to have something like
>> >>
>> >> ReloadOnResume=[true|false]
>> >> StopOnSuspend=[true|false]
>> >>
>> >> Or some other mechanism provided by systemd/logind that does not
>> >> require to use the ugly /usr/lib/systemd/system-sleep/ hooks ?
>> >
>> > My recommendation would be to fix the software in question. I mean, we
>> > will provide compatibility with older software, but we are very
>> > conservative on adding hacky work-arounds for broken software,
>> > especially if no such hack existed in the solutions that were used
>> > before systemd.
>>
>> FWIW, while I'm in total agreement with what you say and the resolution,
>> the pm-utils hooks are what was used before systemd so there technical
>> was such a hack that existed in the solutions that were used before systemd.
>>
>> I remember seeing various hooks here to e.g. shut down mysql and restart
>> it again and such like things. That particular example hasn't been
>> needed for me for ages, but I'm sure there are other examples that might
>> be more legitimate.

If they are needed, couldn't equivalent /usr/lib/systemd/system-sleep
hooks be created in their place?

>> That said, I think Fred had patches that are applied in Suse to read
>> these pm-utils hooks anyway, so that might be what Cristian needs?
>
> Well, the patch in question is even more ugly than that, since it defers
> to pm-utils (when available) suspend / hibernate ;(

At some point we had a 'legacy' hook for Arch, but eventually decided
against shipping it. It was a script
/usr/lib/systemd/system-sleep/pm-utils which would simply convert the
systemd arguments to pm-utils ones and call all the scripts in
/usr/lib/pm-utils/sleep.d with this argument. Is that what you had as
well?

-t