source: rtems/cpukit/rtems/src/taskwakewhen.c @ 17bbadd

Last change on this file since 17bbadd was 17bbadd, checked in by Joel Sherrill <joel.sherrill@…>, on 05/06/04 at 19:20:04

2004-05-06 Joel Sherrill <joel@…>

PR 618/rtems

  • include/rtems/rtems/status.h, src/clockget.c, src/clockset.c, src/dpmemcreate.c, src/dpmemexternal2internal.c, src/dpmeminternal2external.c, src/eventmp.c, src/eventreceive.c, src/eventsend.c, src/msgqbroadcast.c, src/msgqcreate.c, src/msgqflush.c, src/msgqgetnumberpending.c, src/msgqreceive.c, src/msgqsubmit.c, src/partcreate.c, src/partdelete.c, src/partgetbuffer.c, src/ratemoncancel.c, src/ratemoncreate.c, src/ratemondelete.c, src/ratemongetstatus.c, src/ratemonident.c, src/ratemonperiod.c, src/regioncreate.c, src/regiondelete.c, src/regionextend.c, src/regiongetsegment.c, src/regiongetsegmentsize.c, src/regionreturnsegment.c, src/semcreate.c, src/semdelete.c, src/semflush.c, src/semident.c, src/taskcreate.c, src/taskgetnote.c, src/taskmode.c, src/taskrestart.c, src/taskresume.c, src/tasksetnote.c, src/tasksuspend.c, src/taskvariableadd.c, src/taskvariabledelete.c, src/taskvariableget.c, src/taskwakewhen.c, src/timercreate.c, src/timerdelete.c, src/timerfireafter.c, src/timerfirewhen.c, src/timerserverfireafter.c, src/timerserverfirewhen.c: Add NULL checks.
  • Property mode set to 100644
File size: 1.9 KB
Line 
1/*
2 *  RTEMS Task Manager
3 *
4 *
5 *  COPYRIGHT (c) 1989-1999.
6 *  On-Line Applications Research Corporation (OAR).
7 *
8 *  The license and distribution terms for this file may be
9 *  found in the file LICENSE in this distribution or at
10 *  http://www.rtems.com/license/LICENSE.
11 *
12 *  $Id$
13 */
14
15#include <rtems/system.h>
16#include <rtems/rtems/status.h>
17#include <rtems/rtems/support.h>
18#include <rtems/rtems/modes.h>
19#include <rtems/score/object.h>
20#include <rtems/score/stack.h>
21#include <rtems/score/states.h>
22#include <rtems/rtems/tasks.h>
23#include <rtems/score/thread.h>
24#include <rtems/score/threadq.h>
25#include <rtems/score/tod.h>
26#include <rtems/score/userext.h>
27#include <rtems/score/wkspace.h>
28#include <rtems/score/apiext.h>
29#include <rtems/score/sysstate.h>
30
31/*PAGE
32 *
33 *  rtems_task_wake_when
34 *
35 *  This directive blocks the requesting thread until the given date and
36 *  time is reached.
37 *
38 *  Input parameters:
39 *    time_buffer - pointer to the time and date structure
40 *
41 *  Output parameters:
42 *    RTEMS_SUCCESSFUL - if successful
43 *    error code       - if unsuccessful
44 */
45
46rtems_status_code rtems_task_wake_when(
47  rtems_time_of_day *time_buffer
48)
49{
50  Watchdog_Interval   seconds;
51
52  if ( !_TOD_Is_set )
53    return RTEMS_NOT_DEFINED;
54
55  if ( !time_buffer )
56    return RTEMS_INVALID_ADDRESS;
57
58  time_buffer->ticks = 0;
59
60  if ( !_TOD_Validate( time_buffer ) )
61    return RTEMS_INVALID_CLOCK;
62
63  seconds = _TOD_To_seconds( time_buffer );
64
65  if ( seconds <= _TOD_Seconds_since_epoch )
66    return RTEMS_INVALID_CLOCK;
67
68  _Thread_Disable_dispatch();
69    _Thread_Set_state( _Thread_Executing, STATES_WAITING_FOR_TIME );
70    _Watchdog_Initialize(
71      &_Thread_Executing->Timer,
72      _Thread_Delay_ended,
73      _Thread_Executing->Object.id,
74      NULL
75    );
76    _Watchdog_Insert_seconds(
77      &_Thread_Executing->Timer,
78      seconds - _TOD_Seconds_since_epoch
79    );
80  _Thread_Enable_dispatch();
81  return RTEMS_SUCCESSFUL;
82}
Note: See TracBrowser for help on using the repository browser.