tests/time.pure.lisp

   1 ;;;; This software is part of the SBCL system. See the README file for
   2 ;;;; more information.
   3 ;;;;
   4 ;;;; While most of SBCL is derived from the CMU CL system, the test
   5 ;;;; files (like this one) were written from scratch after the fork
   6 ;;;; from CMU CL.
   7 ;;;;
   8 ;;;; This software is in the public domain and is provided with
   9 ;;;; absolutely no warranty. See the COPYING and CREDITS files for
  10 ;;;; more information.
  11
  12 (in-package "CL-USER")
  13
  14 ;;; Test for monotonicity of GET-INTERNAL-RUN-TIME. (On OpenBSD, this
  15 ;;; is not a given, because of a longstanding bug in getrusage().)
  16 (funcall (compile nil
  17                   '(lambda (n-seconds)
  18                      (declare (type fixnum n-seconds))
  19                      (let* ((n-internal-time-units
  20                              (* n-seconds
  21                                 internal-time-units-per-second))
  22                             (time0 (get-internal-run-time))
  23                             (time1 (+ time0 n-internal-time-units)))
  24                        (loop
  25                         (let ((time (get-internal-run-time)))
  26                           (assert (>= time time0))
  27                           (when (>= time time1)
  28                             (return)))))))
  29          3)