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| author | Ludovic Courtès <ludo@gnu.org> | 2014-09-18 22:51:48 +0200 |
|---|---|---|
| committer | Ludovic Courtès <ludo@gnu.org> | 2014-09-18 22:52:01 +0200 |
| commit | 2a13d05e459946d4989e08461233d7f147f029f5 (patch) | |
| tree | 648676170ffd849fca28d245093b30206035a715 /gnu/services | |
| parent | 715fc9d44d284a0c5e1ded45091eaf979aa5ecd4 (diff) | |
| download | patches-2a13d05e459946d4989e08461233d7f147f029f5.tar patches-2a13d05e459946d4989e08461233d7f147f029f5.tar.gz | |
system: Add support for swap devices.
* gnu/services/base.scm (swap-service): New procedure.
* gnu/system.scm (<operating-system>)[swap-devices]: New field.
(swap-services): New procedure.
(essential-services): Use it.
Diffstat (limited to 'gnu/services')
| -rw-r--r-- | gnu/services/base.scm | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/gnu/services/base.scm b/gnu/services/base.scm index f2de85f410..b38d3e3765 100644 --- a/gnu/services/base.scm +++ b/gnu/services/base.scm @@ -39,6 +39,7 @@ #:export (root-file-system-service file-system-service device-mapping-service + swap-service user-processes-service host-name-service console-font-service @@ -614,6 +615,27 @@ gexp, to open it, and evaluate @var{close} to close it." (stop #~(lambda _ (not #$close))) (respawn? #f))))) +(define (swap-service device) + "Return a service that uses @var{device} as a swap device." + (define requirement + (if (string-prefix? "/dev/mapper/" device) + (list (symbol-append 'device-mapping- + (string->symbol (basename device)))) + '())) + + (with-monad %store-monad + (return (service + (provision (list (symbol-append 'swap- (string->symbol device)))) + (requirement `(udev ,@requirement)) + (documentation "Enable the given swap device.") + (start #~(lambda () + (swapon #$device) + #t)) + (stop #~(lambda _ + (swapoff #$device) + #f)) + (respawn? #f))))) + (define %base-services ;; Convenience variable holding the basic services. (let ((motd (text-file "motd" " |