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| -rw-r--r-- | guix-data-service/utils.scm | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/guix-data-service/utils.scm b/guix-data-service/utils.scm new file mode 100644 index 0000000..a748482 --- /dev/null +++ b/guix-data-service/utils.scm @@ -0,0 +1,33 @@ +;;; Guix Data Service -- Information about Guix over time +;;; Copyright © 2020 Christopher Baines <mail@cbaines.net> +;;; +;;; This program is free software: you can redistribute it and/or +;;; modify it under the terms of the GNU Affero General Public License +;;; as published by the Free Software Foundation, either version 3 of +;;; the License, or (at your option) any later version. +;;; +;;; This program is distributed in the hope that it will be useful, +;;; but WITHOUT ANY WARRANTY; without even the implied warranty of +;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +;;; Affero General Public License for more details. +;;; +;;; You should have received a copy of the GNU Affero General Public +;;; License along with this program. If not, see +;;; <http://www.gnu.org/licenses/>. + +(define-module (guix-data-service utils) + #:export (call-with-time-logging + with-time-logging)) + +(define (call-with-time-logging action thunk) + (simple-format #t "debug: Starting ~A\n" action) + (let* ((start-time (current-time)) + (result (thunk)) + (time-taken (- (current-time) start-time))) + (simple-format #t "debug: Finished ~A, took ~A seconds\n" + action time-taken) + result)) + +(define-syntax-rule (with-time-logging action exp ...) + "Log under NAME the time taken to evaluate EXP." + (call-with-time-logging action (lambda () exp ...))) |