mirror of https://notabug.org/mthl/cuirass.git
57 lines
2.2 KiB
Scheme
57 lines
2.2 KiB
Scheme
;;; base.scm -- Cuirass base module
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;;; Copyright © 2016 Ludovic Courtès <ludo@gnu.org>
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;;; Copyright © 2016 Mathieu Lirzin <mthl@gnu.org>
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;;;
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;;; This file is part of Cuirass.
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;;;
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;;; Cuirass is free software: you can redistribute it and/or modify
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;;; it under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation, either version 3 of the License, or
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;;; (at your option) any later version.
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;;;
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;;; Cuirass is distributed in the hope that it will be useful,
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;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with Cuirass. If not, see <http://www.gnu.org/licenses/>.
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(define-module (cuirass base)
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#:use-module (ice-9 format)
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#:use-module (srfi srfi-19)
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#:export (;; Procedures.
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call-with-time-display
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;; Parameters.
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%package-cachedir))
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(define %package-cachedir
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;; Define to location of cache directory of this package.
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(make-parameter (or (getenv "CUIRASS_CACHEDIR")
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(string-append (or (getenv "HOME") ".")
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"/.cache/cuirass"))
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(λ (val)
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(if (string? val)
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val
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(scm-error 'wrong-type-arg
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"%package-cachedir" "Not a string: ~S" (list #f) #f)))))
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(define (call-with-time thunk kont)
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"Call THUNK and pass KONT the elapsed time followed by THUNK's return
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values."
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(let* ((start (current-time time-monotonic))
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(result (call-with-values thunk list))
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(end (current-time time-monotonic)))
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(apply kont (time-difference end start) result)))
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(define (call-with-time-display thunk)
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"Call THUNK and write to the current output port its duration."
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(call-with-time thunk
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(λ (time result)
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(let ((duration (+ (time-second time)
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(/ (time-nanosecond time) 1e9))))
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(format (current-error-port) "evaluate '~A': ~,3f seconds~%"
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(assq-ref result #:job-name)
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duration)
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(acons #:duration duration result)))))
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