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authorLudovic Courtès <ludo@gnu.org>2014-03-08 21:23:12 +0100
committerLudovic Courtès <ludo@gnu.org>2014-03-08 21:23:12 +0100
commit5cc569dc733c3d606be5180b43c6e8566009b4a3 (patch)
tree998845eaef6705aef5bb98f0e34285c91083b470 /guix
parent7df3ade11286e52829c855b76fc395a4c3831ced (diff)
offload: Prevent locked files from being GC'd.
* guix/scripts/offload.scm (%slots): New variable. (choose-build-machine): Add SLOT to '%slots'.
Diffstat (limited to 'guix')
-rw-r--r--guix/scripts/offload.scm9
1 files changed, 8 insertions, 1 deletions
diff --git a/guix/scripts/offload.scm b/guix/scripts/offload.scm
index 2d2dbe36c5..e1da31af5d 100644
--- a/guix/scripts/offload.scm
+++ b/guix/scripts/offload.scm
@@ -383,6 +383,10 @@ connections allowed to MACHINE."
"Release SLOT, a build slot as returned as by 'acquire-build-slot'."
(close-port slot))
+(define %slots
+ ;; List of acquired build slots (open ports).
+ '())
+
(define (choose-build-machine requirements machines)
"Return the best machine among MACHINES fulfilling REQUIREMENTS, or #f."
@@ -418,7 +422,10 @@ connections allowed to MACHINE."
;; Return the best machine unless it's already overloaded.
(if (< (machine-load best) 2.)
- best
+ (begin
+ ;; Prevent SLOT from being GC'd.
+ (set! %slots (cons slot %slots))
+ best)
(begin
(release-build-slot slot)
#f)))