source: rtems/cpukit/rtems/src/timerreset.c @ c55df85

4.104.114.84.95
Last change on this file since c55df85 was c55df85, checked in by Joel Sherrill <joel.sherrill@…>, on Jan 16, 2002 at 10:09:50 PM

2001-01-16 Joel Sherrill <joel@…>

  • Added task-based timers to the Timer Manager. This added three new directives:
    • rtems_timer_initiate_server
    • rtems_timer_server_fire_after
    • rtems_timer_server_fire_when

In the process of doing this, a number of cleanups were made.

  • src/timerserver.c, src/timerserverfireafter.c, src/timerserverfirewhen.c: New files.
  • include/timer/timer.h: Added new prototypes and supporting types.
  • inline/rtems/rtems/timer.h, macros/rtems/rtems/timer.h: Enhanced _Timer_Is_interval_class() to cover the class TIMER_INTERVAL_ON_TASK.
  • src/Makefile.am: Accounted for new files.
  • src/rtemstimer.c: Added initialization of _Timer_Server variable.
  • src/timercancel.c, src/timerreset.c: Account for addition of timer classes. Also corrected the headers.
  • src/timercreate.c, src/timerdelete.c, src/timerfireafter.c, src/timerfireafter.c, src/timerident.c: Corrected header.
  • Property mode set to 100644
File size: 1.9 KB
Line 
1/*
2 *  Timer Manager - rtems_timer_reset directive
3 *
4 *
5 *  COPYRIGHT (c) 1989-2002.
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.OARcorp.com/rtems/license.html.
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/score/object.h>
19#include <rtems/score/thread.h>
20#include <rtems/rtems/timer.h>
21#include <rtems/score/tod.h>
22#include <rtems/score/watchdog.h>
23
24/*PAGE
25 *
26 *  rtems_timer_reset
27 *
28 *  This directive allows a thread to reset a timer.
29 *
30 *  Input parameters:
31 *    id - timer id
32 *
33 *  Output parameters:
34 *    RTEMS_SUCCESSFUL - if successful
35 *    error code       - if unsuccessful
36 */
37
38rtems_status_code rtems_timer_reset(
39  Objects_Id id
40)
41{
42  Timer_Control     *the_timer;
43  Objects_Locations  location;
44
45  the_timer = _Timer_Get( id, &location );
46  switch ( location ) {
47    case OBJECTS_REMOTE:            /* should never return this */
48      return RTEMS_INTERNAL_ERROR;
49
50    case OBJECTS_ERROR:
51      return RTEMS_INVALID_ID;
52
53    case OBJECTS_LOCAL:
54      switch ( the_timer->the_class ) {
55        case TIMER_INTERVAL:
56          _Watchdog_Remove( &the_timer->Ticker );
57          _Watchdog_Insert( &_Watchdog_Ticks_chain, &the_timer->Ticker );
58          break;
59        case TIMER_INTERVAL_ON_TASK:
60          _Watchdog_Remove( &the_timer->Ticker );
61          _Watchdog_Insert( &_Timer_Ticks_chain, &the_timer->Ticker );
62          break;
63        case TIMER_TIME_OF_DAY:
64        case TIMER_TIME_OF_DAY_ON_TASK:
65        case TIMER_DORMANT:
66          _Thread_Enable_dispatch();
67          return RTEMS_NOT_DEFINED;
68      }
69      _Thread_Enable_dispatch();
70      return RTEMS_SUCCESSFUL;
71  }
72
73  return RTEMS_INTERNAL_ERROR;   /* unreached - only to remove warnings */
74}
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