source: rtems/cpukit/rtems/src/taskwakewhen.c @ 5618c37a

4.115
Last change on this file since 5618c37a was 5618c37a, checked in by Sebastian Huber <sebastian.huber@…>, on 07/24/13 at 13:14:48

score: Create thread implementation header

Move implementation specific parts of thread.h and thread.inl into new
header file threadimpl.h. The thread.h contains now only the
application visible API.

Remove superfluous header file includes from various files.

  • Property mode set to 100644
File size: 1.3 KB
Line 
1/**
2 *  @file
3 *
4 *  @brief RTEMS Task Wake When
5 *  @ingroup ClassicTasks
6 */
7
8/*
9 *  COPYRIGHT (c) 1989-1999.
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.com/license/LICENSE.
15 */
16
17#if HAVE_CONFIG_H
18#include "config.h"
19#endif
20
21#include <rtems/rtems/tasks.h>
22#include <rtems/rtems/clock.h>
23#include <rtems/score/threadimpl.h>
24#include <rtems/score/watchdogimpl.h>
25
26rtems_status_code rtems_task_wake_when(
27  rtems_time_of_day *time_buffer
28)
29{
30  Watchdog_Interval   seconds;
31
32  if ( !_TOD.is_set )
33    return RTEMS_NOT_DEFINED;
34
35  if ( !time_buffer )
36    return RTEMS_INVALID_ADDRESS;
37
38  time_buffer->ticks = 0;
39
40  if ( !_TOD_Validate( time_buffer ) )
41    return RTEMS_INVALID_CLOCK;
42
43  seconds = _TOD_To_seconds( time_buffer );
44
45  if ( seconds <= _TOD_Seconds_since_epoch() )
46    return RTEMS_INVALID_CLOCK;
47
48  _Thread_Disable_dispatch();
49    _Thread_Set_state( _Thread_Executing, STATES_WAITING_FOR_TIME );
50    _Watchdog_Initialize(
51      &_Thread_Executing->Timer,
52      _Thread_Delay_ended,
53      _Thread_Executing->Object.id,
54      NULL
55    );
56    _Watchdog_Insert_seconds(
57      &_Thread_Executing->Timer,
58      seconds - _TOD_Seconds_since_epoch()
59    );
60  _Thread_Enable_dispatch();
61  return RTEMS_SUCCESSFUL;
62}
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