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
|
/*******************************************************************************
* PM-QA validation test suite for the power management on ARM
*
* Copyright (C) 2011, Linaro Limited.
*
* 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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Contributors:
* Daniel Lezcano <daniel.lezcano@linaro.org> (IBM Corporation)
* - initial API and implementation
*
*******************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <time.h>
int main(int argc, char *argv[])
{
struct timespec req = { 0 }, rem = { 0 };
if (argc != 2) {
fprintf(stderr, "%s <nanoseconds>\n", argv[0]);
return 1;
}
req.tv_nsec = atoi(argv[1]);
for (;;) {
if (!nanosleep(&req, &rem))
break;
if (errno == EINTR) {
req = rem;
continue;
}
perror("failed to nanosleep");
return 1;
}
return 0;
}
|
