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services: tlp: Make destructor return #f on success.

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* gnu/services/pm.scm (tlp-shepherd-service): Make destructor
return #f on success. Destructor "should return #f if it is
now possible again to start the service at a later point"
(shepherd manual).

Change-Id: Ic0d21d32af158da1ae940d9c32c05a3471767764
Signed-off-by: Ludovic Courtès <ludo@gnu.org>
This commit is contained in:
Nigko Yerden 2025-04-08 11:30:24 +05:00 • committed by Ludovic Courtès
parent 1187020066
commit accb75c33b
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1 changed files with 7 additions and 4 deletions
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11
gnu/services/pm.scm
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@ -2,6 +2,7 @@
;;; Copyright © 2017 Mathieu Othacehe <m.othacehe@gmail.com>
;;; Copyright © 2024 Dariqq <dariqq@posteo.net>
;;; Copyright © 2024 Ian Eure <ian@retrospec.tv>
;;; Copyright © 2025 Nigko Yerden <nigko.yerden@gmail.com>
;;;
;;; This file is part of GNU Guix.
;;;
@ -459,15 +460,17 @@ performance, balance_performance, default, balance_power and power."))
(define (tlp-shepherd-service config)
(let* ((tlp-bin (file-append
(tlp-configuration-tlp config) "/sbin/tlp"))
(tlp-action (lambda args
(tlp-action (lambda (return-value-on-success . args)
#~(lambda _
(zero? (system* #$tlp-bin #$@args))))))
(if (zero? (system* #$tlp-bin #$@args))
#$return-value-on-success
(not #$return-value-on-success))))))
(list (shepherd-service
(documentation "Run TLP script.")
(provision '(tlp))
(requirement '(user-processes))
(start (tlp-action "init" "start"))
(stop (tlp-action "init" "stop"))))))
(start (tlp-action #t "init" "start"))
(stop (tlp-action #f "init" "stop"))))))
(define (tlp-activation config)
(let* ((config-str (with-output-to-string