source: rtems/c/src/lib/libc/__times.c @ bc85fd5a

4.104.114.84.95
Last change on this file since bc85fd5a was 08311cc3, checked in by Joel Sherrill <joel.sherrill@…>, on 11/17/99 at 17:51:34

Updated copyright notice.

  • Property mode set to 100644
File size: 1.5 KB
Line 
1/*
2 *  times() - POSIX 1003.1b 4.5.2 - Get Process Times
3 *
4 *  COPYRIGHT (c) 1989-1999.
5 *  On-Line Applications Research Corporation (OAR).
6 *
7 *  The license and distribution terms for this file may be
8 *  found in the file LICENSE in this distribution or at
9 *  http://www.OARcorp.com/rtems/license.html.
10 *
11 *  $Id$
12 */
13
14#include <rtems.h>
15
16#include <sys/times.h>
17#include <time.h>
18#include <sys/time.h>
19#include <errno.h>
20#include <assert.h>
21
22clock_t _times(
23   struct tms  *ptms
24)
25{
26  rtems_status_code  status;
27  rtems_interval     ticks;
28
29  if ( !ptms ) {
30    errno = EFAULT;
31    return -1;
32  }
33
34  /* "POSIX" does not seem to allow for not having a TOD */
35  status = rtems_clock_get( RTEMS_CLOCK_GET_TICKS_SINCE_BOOT, &ticks );
36  if ( status != RTEMS_SUCCESSFUL ) {
37    assert( 0 );
38    return -1;
39  }
40
41  /*
42   *  RTEMS has no notion of system versus user time and although
43   *  a way to keep track of per task CPU usage was added since
44   *  3.6.0, this routine does not utilize it yet.
45   */
46
47  ptms->tms_utime  = ticks;
48  ptms->tms_stime  = 0;
49  ptms->tms_cutime = 0;
50  ptms->tms_cstime = 0;
51
52  return 0;
53}
54
55/*
56 *  times()
57 *
58 *  times() system call wrapper for _times() above.
59 */
60
61clock_t times(
62   struct tms  *ptms
63)
64{
65  return _times( ptms );
66}
67
68/*
69 *  _times_r
70 *
71 *  This is the Newlib dependent reentrant version of times().
72 */
73
74#if defined(RTEMS_NEWLIB)
75
76#include <reent.h>
77
78clock_t _times_r(
79   struct _reent *ptr,
80   struct tms  *ptms
81)
82{
83  return _times( ptms );
84}
85#endif
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