services: science.scm: Add missing copyright headers.

[jackhill/guix/guix.git] / gnu / services / pm.scm

diff --git a/gnu/services/pm.scm b/gnu/services/pm.scm
index 3cefe18..256c6a7 100644 (file)
--- a/gnu/services/pm.scm
+++ b/gnu/services/pm.scm
@@ -3,7 +3,7 @@
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
-;;; GNU Guix is free software: you can redistribute it and/or modify
+;;; GNU Guix is free software; you can redistribute it and/or modify
 ;;; it under the terms of the GNU General Public License as published by
 ;;; the Free Software Foundation, either version 3 of the License, or
 ;;; (at your option) any later version.
@@ -20,6 +20,7 @@
   #:use-module (guix gexp)
   #:use-module (guix packages)
   #:use-module (guix records)
+  #:use-module (gnu packages admin)
   #:use-module (gnu packages linux)
   #:use-module (gnu services)
   #:use-module (gnu services base)
@@ -27,7 +28,10 @@
   #:use-module (gnu services shepherd)
   #:use-module (gnu system shadow)
   #:export (tlp-service-type
-            tlp-configuration))
+            tlp-configuration
+
+            thermald-configuration
+            thermald-service-type))
 
 (define (uglify-field-name field-name)
   (let ((str (symbol->string field-name)))
@@ -384,7 +388,7 @@ shutdown on system startup."))
     (with-imported-modules '((guix build utils))
       #~(begin
           (use-modules (guix build utils))
-          (copy-file #$config-file "/etc/tlp")))))
+          (copy-file #$config-file "/etc/tlp.conf")))))
 
 (define tlp-service-type
   (service-type
@@ -397,9 +401,47 @@ shutdown on system startup."))
                         (compose list tlp-configuration-tlp))
      (service-extension activation-service-type
                         tlp-activation)))
-   (default-value (tlp-configuration))))
+   (default-value (tlp-configuration))
+   (description "Run TLP, a power management tool.")))
 
 (define (generate-tlp-documentation)
   (generate-documentation
    `((tlp-configuration ,tlp-configuration-fields))
    'tlp-configuration))
+
+\f
+
+;;;
+;;; thermald
+;;;
+;;; This service implements cpu scaling.  Helps prevent overheating!
+
+(define-record-type* <thermald-configuration>
+  thermald-configuration make-thermald-configuration
+  thermald-configuration?
+  (ignore-cpuid-check? thermald-ignore-cpuid-check?    ;boolean
+                       (default #f))
+  (thermald            thermald-thermald               ;package
+                       (default thermald)))
+
+(define (thermald-shepherd-service config)
+  (list
+   (shepherd-service
+    (provision '(thermald))
+    (documentation "Run thermald cpu frequency scaling.")
+    (start #~(make-forkexec-constructor
+              '(#$(file-append (thermald-thermald config) "/sbin/thermald")
+                "--no-daemon"
+                #$@(if (thermald-ignore-cpuid-check? config)
+                       '("--ignore-cpuid-check")
+                       '()))))
+    (stop #~(make-kill-destructor)))))
+
+(define thermald-service-type
+  (service-type
+   (name 'thermald)
+   (extensions (list (service-extension shepherd-root-service-type
+                                        thermald-shepherd-service)))
+   (default-value (thermald-configuration))
+   (description "Run thermald, a CPU frequency scaling service that helps
+prevent overheating.")))