source: rtems/cpukit/posix/src/clocksettime.c @ 1ef8e4a8

Last change on this file since 1ef8e4a8 was 1ef8e4a8, checked in by Sebastian Huber <sebastian.huber@…>, on Apr 27, 2016 at 8:07:56 PM

score: Avoid Giant lock for set time of day

Update #2555.
Update #2630.

  • Property mode set to 100644
File size: 1.1 KB
Line 
1/**
2 * @file
3 *
4 * @brief Set Time of Clock
5 * @ingroup POSIXAPI
6 */
7
8/*
9 *  COPYRIGHT (c) 1989-2007.
10 *  On-Line Applications Research Corporation (OAR).
11 *
12 *  The license and distribution terms for this file may be
13 *  found in the file LICENSE in this distribution or at
14 *  http://www.rtems.org/license/LICENSE.
15 */
16
17#if HAVE_CONFIG_H
18#include "config.h"
19#endif
20
21#include <time.h>
22
23#include <rtems/score/todimpl.h>
24#include <rtems/seterr.h>
25
26/*
27 *  14.2.1 Clocks, P1003.1b-1993, p. 263
28 */
29
30int clock_settime(
31  clockid_t              clock_id,
32  const struct timespec *tp
33)
34{
35  if ( !tp )
36    rtems_set_errno_and_return_minus_one( EINVAL );
37
38  if ( clock_id == CLOCK_REALTIME ) {
39    if ( tp->tv_sec < TOD_SECONDS_1970_THROUGH_1988 )
40      rtems_set_errno_and_return_minus_one( EINVAL );
41
42    _TOD_Set_with_timespec( tp );
43  }
44#ifdef _POSIX_CPUTIME
45  else if ( clock_id == CLOCK_PROCESS_CPUTIME_ID )
46    rtems_set_errno_and_return_minus_one( ENOSYS );
47#endif
48#ifdef _POSIX_THREAD_CPUTIME
49  else if ( clock_id == CLOCK_THREAD_CPUTIME_ID )
50    rtems_set_errno_and_return_minus_one( ENOSYS );
51#endif
52  else
53    rtems_set_errno_and_return_minus_one( EINVAL );
54
55  return 0;
56}
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