[bug#54215] [PATCH Shepherd] service: Add #:rlimits parameter to 'exec-command' & co.

[Attila Lendvai]

> > now that i have a reaconable edit-build-test cycle for shepherd, i'm 
> > planning to
> > clean up shepherd error reporting and logging, so that when an error occur 
> > then
> > there's a proper backtrace in the shepherd logs.
> > i'd rather work on that instead. does that sound reasonable?
>
> Sure! Better error reporting and rlimit support are orthogonal
> concerns.

well, it's not orthogonal in the sense that i can only work on one of them in
the same unit of time, and this is already a side-project of a side-project for
me.

let me know if sanity checking the rlimit arg is a precondition for applying
this patch, and then i'll look into it.

otherwise APPLY and SETRLIMIT both signal any errors they encounter, and i think
better logging and backtraces will take us much farther than numerous sanity
checks and error messages, let alone the not-so-apparent costs of the extra LoC
that they introduce into the code.

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• attila lendvai
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