blob: 85dacb69b2ac042f8e60de0208f10d5c6296b063 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
/*************************************************************************
* Copyright (C) 2008 Tavian Barnes <tavianator@gmail.com> *
* *
* This file is part of The Sandglass Library. *
* *
* The Sandglass 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 *
* 3 of the License, or (at your option) any later version. *
* *
* The Sandglass 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 program. If not, see *
* <http://www.gnu.org/licenses/>. *
*************************************************************************/
#include <sandglass.h>
#include <unistd.h>
#include <time.h>
#include <stdlib.h>
#include <stdio.h>
int
main()
{
sandglass_t sandglass;
sandglass_attributes_t min = { SANDGLASS_MONOTONIC, SANDGLASS_SYSTEM },
max = { SANDGLASS_MONOTONIC, SANDGLASS_CPUTIME };
struct timespec tosleep = { .tv_sec = 0, .tv_nsec = 100000000 };
if (sandglass_create(&sandglass, &min, &max) != 0) {
perror("sandglass_create()");
return EXIT_FAILURE;
}
if (sandglass_begin(&sandglass) != 0) {
perror("sandglass_begin()");
return EXIT_FAILURE;
}
while (nanosleep(&tosleep, &tosleep) != 0);
if (sandglass_elapse(&sandglass) != 0) {
perror("sandglass_elapse()");
return EXIT_FAILURE;
}
printf("0.1 seconds timed by sandglass as %ld grains; %g s\n",
sandglass.grains,
sandglass.grains/sandglass.resolution);
return EXIT_SUCCESS;
}
|