mirror of
https://git.savannah.gnu.org/git/guile.git
synced 2025-04-30 20:00:19 +02:00
9d07bb7276
* lang/Makefile.am (elisp_sources): Add elisp/expand.scm. * module/ice-9/time.scm (time): Fix for new macro expander. Ew.
58 lines
2 KiB
Scheme
58 lines
2 KiB
Scheme
;;;; Copyright (C) 2001, 2004, 2006 Free Software Foundation, Inc.
|
||
;;;;
|
||
;;;; This library is free software; you can redistribute it and/or
|
||
;;;; modify it under the terms of the GNU Lesser General Public
|
||
;;;; License as published by the Free Software Foundation; either
|
||
;;;; version 2.1 of the License, or (at your option) any later version.
|
||
;;;;
|
||
;;;; This library 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
|
||
;;;; Lesser General Public License for more details.
|
||
;;;;
|
||
;;;; You should have received a copy of the GNU Lesser General Public
|
||
;;;; License along with this library; if not, write to the Free Software
|
||
;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||
;;;;
|
||
|
||
;;; Commentary:
|
||
|
||
;; This module exports a single macro: `time'.
|
||
;; Usage: (time exp)
|
||
;;
|
||
;; Example:
|
||
;; guile> (time (sleep 3))
|
||
;; clock utime stime cutime cstime gctime
|
||
;; 3.01 0.00 0.00 0.00 0.00 0.00
|
||
;; 0
|
||
|
||
;;; Code:
|
||
|
||
(define-module (ice-9 time)
|
||
:use-module (ice-9 format)
|
||
:export (time))
|
||
|
||
(define (time-proc proc)
|
||
(let* ((gc-start (gc-run-time))
|
||
(tms-start (times))
|
||
(result (proc))
|
||
(tms-end (times))
|
||
(gc-end (gc-run-time)))
|
||
;; FIXME: We would probably like format ~f to accept rationals, but
|
||
;; currently it doesn't so we force to a flonum with exact->inexact.
|
||
(define (get proc start end)
|
||
(exact->inexact (/ (- (proc end) (proc start)) internal-time-units-per-second)))
|
||
(display "clock utime stime cutime cstime gctime\n")
|
||
(format #t "~5,2F ~5,2F ~5,2F ~6,2F ~6,2F ~6,2F\n"
|
||
(get tms:clock tms-start tms-end)
|
||
(get tms:utime tms-start tms-end)
|
||
(get tms:stime tms-start tms-end)
|
||
(get tms:cutime tms-start tms-end)
|
||
(get tms:cstime tms-start tms-end)
|
||
(get identity gc-start gc-end))
|
||
result))
|
||
|
||
(define-macro (time exp)
|
||
`((@@ (ice-9 time) time-proc) (lambda () ,exp)))
|
||
|
||
;;; time.scm ends here
|