summaryrefslogtreecommitdiff
path: root/gnulib/tests/test-times.c
diff options
context:
space:
mode:
Diffstat (limited to 'gnulib/tests/test-times.c')
m---------gnulib0
-rw-r--r--gnulib/tests/test-times.c105
2 files changed, 105 insertions, 0 deletions
diff --git a/gnulib b/gnulib
deleted file mode 160000
-Subproject 4fc10daa05477586fea99b6b3ca02a87d1102fa
diff --git a/gnulib/tests/test-times.c b/gnulib/tests/test-times.c
new file mode 100644
index 00000000..dcdcdb46
--- /dev/null
+++ b/gnulib/tests/test-times.c
@@ -0,0 +1,105 @@
+/* Test of times function.
+ Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU 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 General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+/* Written by Simon Josefsson <simon@josefsson.org>, 2008. */
+
+#include <config.h>
+
+#include <sys/times.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (times, clock_t, (struct tms *));
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <math.h>
+
+static int
+doublecmp (const void *p, const void *q)
+{
+ double a = *(double *) p;
+ double b = *(double *) q;
+
+ return a < b;
+}
+
+int
+main (int argc, char *argv[])
+{
+ struct tms tms;
+ clock_t t;
+#ifndef _SC_CLK_TCK
+ clock_t clk_tck = CLK_TCK;
+#else
+ clock_t clk_tck = sysconf (_SC_CLK_TCK);
+#endif
+
+ t = times (&tms);
+ if (t == (clock_t) -1)
+ {
+ perror ("times");
+ return EXIT_FAILURE;
+ }
+
+ if (argc > 1)
+ {
+ printf ("clk_tck %ld\n", (long int) clk_tck);
+
+ printf ("t %ld\n", t);
+ printf ("tms.tms_utime %ldms\n", (tms.tms_utime * 1000) / clk_tck);
+ printf ("tms.tms_stime %ldms\n", (tms.tms_stime * 1000) / clk_tck);
+ printf ("tms.tms_cutime %ldms\n", (tms.tms_cutime * 1000) / clk_tck);
+ printf ("tms.tms_cstime %ldms\n", (tms.tms_cstime * 1000) / clk_tck);
+ }
+
+ if (argc > 1)
+ {
+ size_t size = atoi (argv[1]);
+ double *base;
+ size_t i;
+
+ base = malloc (size * sizeof (double));
+
+ for (i = 0; i < size; i++)
+ base[i] = i * i;
+
+ qsort (base, size, sizeof (double), doublecmp);
+
+ free (base);
+ }
+
+ t = times (&tms);
+ if (t == (clock_t) -1)
+ {
+ perror ("times");
+ return EXIT_FAILURE;
+ }
+
+ if (argc > 1)
+ {
+ printf ("clk_tck %ld\n", (long int) clk_tck);
+
+ printf ("t %ld\n", t);
+ printf ("tms.tms_utime %ldms\n", (tms.tms_utime * 1000) / clk_tck);
+ printf ("tms.tms_stime %ldms\n", (tms.tms_stime * 1000) / clk_tck);
+ printf ("tms.tms_cutime %ldms\n", (tms.tms_cutime * 1000) / clk_tck);
+ printf ("tms.tms_cstime %ldms\n", (tms.tms_cstime * 1000) / clk_tck);
+ }
+
+ return 0;
+}