source: rtems/c/src/exec/posix/src/clockgetres.c @ 089abb6d

4.104.114.84.95
Last change on this file since 089abb6d was e180a77e, checked in by Joel Sherrill <joel.sherrill@…>, on 01/04/02 at 18:28:24

2002-01-04 Ralf Corsepius <corsepiu@…>

  • src/clockgetres.c: Apply rtems_set_errno_and_return_minus_one.
  • src/clockgettime.c: Apply rtems_set_errno_and_return_minus_one.
  • src/clocksettime.c: Apply rtems_set_errno_and_return_minus_one.
  • src/killinfo.c: Apply rtems_set_errno_and_return_minus_one.
  • src/mqueueclose.c: Apply rtems_set_errno_and_return_minus_one.
  • src/mqueuecreatesupp.c: Apply rtems_set_errno_and_return_minus_one.
  • src/mqueuegetattr.c: Apply rtems_set_errno_and_return_minus_one.
  • src/mqueuenotify.c: Apply rtems_set_errno_and_return_minus_one.
  • src/mqueueopen.c: Apply rtems_set_errno_and_return_minus_one.
  • src/mqueuerecvsupp.c: Apply rtems_set_errno_and_return_minus_one.
  • src/mqueuesendsupp.c: Apply rtems_set_errno_and_return_minus_one.
  • src/mqueuesetattr.c: Apply rtems_set_errno_and_return_minus_one.
  • src/mqueueunlink.c: Apply rtems_set_errno_and_return_minus_one.
  • src/nanosleep.c: Apply rtems_set_errno_and_return_minus_one.
  • src/pthreadkill.c: Apply rtems_set_errno_and_return_minus_one.
  • src/pthreadsigmask.c: Apply rtems_set_errno_and_return_minus_one.
  • src/ptimer1.c: Apply rtems_set_errno_and_return_minus_one.
  • src/sched.c: Apply rtems_set_errno_and_return_minus_one.
  • src/semaphorecreatesupp.c: Apply rtems_set_errno_and_return_minus_one.
  • src/semaphorewaitsupp.c: Apply rtems_set_errno_and_return_minus_one.
  • src/semclose.c: Apply rtems_set_errno_and_return_minus_one.
  • src/semdestroy.c: Apply rtems_set_errno_and_return_minus_one.
  • src/semgetvalue.c: Apply rtems_set_errno_and_return_minus_one.
  • src/seminit.c: Apply rtems_set_errno_and_return_minus_one.
  • src/semopen.c: Apply rtems_set_errno_and_return_minus_one.
  • src/sempost.c: Apply rtems_set_errno_and_return_minus_one.
  • src/semunlink.c: Apply rtems_set_errno_and_return_minus_one.
  • src/setpgid.c: Apply rtems_set_errno_and_return_minus_one.
  • src/setsid.c: Apply rtems_set_errno_and_return_minus_one.
  • src/sigaction.c: Apply rtems_set_errno_and_return_minus_one.
  • src/sigaddset.c: Apply rtems_set_errno_and_return_minus_one.
  • src/sigdelset.c: Apply rtems_set_errno_and_return_minus_one.
  • src/sigemptyset.c: Apply rtems_set_errno_and_return_minus_one.
  • src/sigfillset.c: Apply rtems_set_errno_and_return_minus_one.
  • src/sigismember.c: Apply rtems_set_errno_and_return_minus_one.
  • src/sigpending.c: Apply rtems_set_errno_and_return_minus_one.
  • src/sigtimedwait.c: Apply rtems_set_errno_and_return_minus_one.
  • src/utsname.c: Apply rtems_set_errno_and_return_minus_one.
  • Property mode set to 100644
File size: 1008 bytes
Line 
1/*
2 *  $Id$
3 */
4
5#if HAVE_CONFIG_H
6#include "config.h"
7#endif
8
9#include <assert.h>
10#include <time.h>
11#include <errno.h>
12
13#include <rtems/system.h>
14#include <rtems/score/isr.h>
15#include <rtems/score/thread.h>
16#include <rtems/score/tod.h>
17
18#include <rtems/seterr.h>
19#include <rtems/posix/time.h>
20
21/*PAGE
22 *
23 *  14.2.1 Clocks, P1003.1b-1993, p. 263
24 */
25
26int clock_getres(
27  clockid_t        clock_id,
28  struct timespec *res
29)
30{
31  if ( !res )
32    rtems_set_errno_and_return_minus_one( EINVAL );
33 
34  switch ( clock_id ) {
35 
36    /*
37     *  All time in rtems is based on the same clock tick.
38     */
39
40    case CLOCK_REALTIME:
41    case CLOCK_PROCESS_CPUTIME:
42    case CLOCK_THREAD_CPUTIME:
43      if ( res ) {
44        res->tv_sec = _TOD_Microseconds_per_tick / 1000000;
45        res->tv_nsec = _TOD_Microseconds_per_tick * 1000;
46        /* _POSIX_Interval_to_timespec( _TOD_Microseconds_per_tick, res );  */
47      }
48      break;
49 
50    default:
51      rtems_set_errno_and_return_minus_one( EINVAL );
52 
53  }
54  return 0;
55}
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