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;;; 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 ...)))
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