blob: 99c1ba80720a9d2af71939ca5fac9180c0b1201d (
plain) (
blame)
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
|
/*
* COPYRIGHT (c) 1989-2010.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <sys/resource.h>
#include <errno.h>
#include <rtems.h>
#include <rtems/seterr.h>
int getrusage(int who, struct rusage *usage)
{
struct timespec uptime;
struct timeval rtime;
if ( !usage )
rtems_set_errno_and_return_minus_one( EFAULT );
/*
* RTEMS only has a single process so there are no children.
* The single process has been running since the system
* was booted and since there is no distinction between system
* and user time, we will just report the uptime.
*/
if (who == RUSAGE_SELF) {
rtems_clock_get_uptime( &uptime );
rtime.tv_sec = uptime.tv_sec;
rtime.tv_usec = uptime.tv_nsec / 1000;
usage->ru_utime = rtime;
usage->ru_stime = rtime;
return 0;
}
if (who == RUSAGE_CHILDREN) {
rtems_set_errno_and_return_minus_one( ENOSYS );
}
rtems_set_errno_and_return_minus_one( EINVAL );
}
|