source: rtems/cpukit/rtems/src/systemeventsend.c @ 9bfd7ff

4.115
Last change on this file since 9bfd7ff was 0edf263, checked in by Sebastian Huber <sebastian.huber@…>, on 10/26/12 at 08:05:07

rtems: Add system events

System events are similar to normal events. They offer a second set of
events. These events are intended for internal RTEMS use and should not
be used by applications (with the exception of the transient system
event).

  • Property mode set to 100644
File size: 1.3 KB
Line 
1/**
2 * @file
3 *
4 * @ingroup ClassicEventSystem
5 *
6 * @brief rtems_event_system_send() implementation.
7 */
8
9/*
10 * Copyright (c) 2012 embedded brains GmbH.  All rights reserved.
11 *
12 *  embedded brains GmbH
13 *  Obere Lagerstr. 30
14 *  82178 Puchheim
15 *  Germany
16 *  <rtems@embedded-brains.de>
17 *
18 * The license and distribution terms for this file may be
19 * found in the file LICENSE in this distribution or at
20 * http://www.rtems.com/license/LICENSE.
21 */
22
23#if HAVE_CONFIG_H
24  #include "config.h"
25#endif
26
27#include <rtems/rtems/event.h>
28#include <rtems/rtems/tasks.h>
29
30rtems_status_code rtems_event_system_send(
31  rtems_id        id,
32  rtems_event_set event_in
33)
34{
35  rtems_status_code  sc;
36  Thread_Control    *thread;
37  Objects_Locations  location;
38  RTEMS_API_Control *api;
39
40  thread = _Thread_Get( id, &location );
41  switch ( location ) {
42    case OBJECTS_LOCAL:
43      api = thread->API_Extensions[ THREAD_API_RTEMS ];
44      _Event_Surrender(
45        thread,
46        event_in,
47        &api->System_event,
48        &_System_event_Sync_state,
49        STATES_WAITING_FOR_SYSTEM_EVENT
50      );
51      _Thread_Enable_dispatch();
52      sc = RTEMS_SUCCESSFUL;
53      break;
54#ifdef RTEMS_MULTIPROCESSING
55    case OBJECTS_REMOTE:
56      sc = RTEMS_ILLEGAL_ON_REMOTE_OBJECT;
57      break;
58#endif
59    default:
60      sc = RTEMS_INVALID_ID;
61      break;
62  }
63
64  return sc;
65}
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