source: rtems/cpukit/rtems/src/semdelete.c @ 9809d6e0

Last change on this file since 9809d6e0 was 9809d6e0, checked in by Sebastian Huber <sebastian.huber@…>, on Mar 30, 2016 at 9:39:58 AM

score: _Thread_queue_Flush() parameter changes

Change _Thread_queue_Flush() into a macro that invokes
_Thread_queue_Do_flush() with the parameter set defined by
RTEMS_MULTIPROCESSING. For multiprocessing configurations add the
object identifier to avoid direct use of the thread wait information.

Use mp_ prefix for multiprocessing related parameters.

Rename Thread_queue_Flush_callout to Thread_queue_MP_callout since this
type will be re-used later for other operations as well.

  • Property mode set to 100644
File size: 3.3 KB
Line 
1/**
2 *  @file
3 *
4 *  @brief RTEMS Delete Semaphore
5 *  @ingroup ClassicSem
6 */
7
8/*
9 *  COPYRIGHT (c) 1989-2014.
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 <rtems/system.h>
22#include <rtems/rtems/status.h>
23#include <rtems/rtems/support.h>
24#include <rtems/rtems/attrimpl.h>
25#include <rtems/score/isr.h>
26#include <rtems/rtems/options.h>
27#include <rtems/rtems/semimpl.h>
28#include <rtems/score/coremuteximpl.h>
29#include <rtems/score/coresemimpl.h>
30#include <rtems/score/thread.h>
31
32#include <rtems/score/interr.h>
33
34rtems_status_code rtems_semaphore_delete(
35  rtems_id   id
36)
37{
38  Semaphore_Control          *the_semaphore;
39  Objects_Locations           location;
40  rtems_attribute             attribute_set;
41
42  _Objects_Allocator_lock();
43
44  the_semaphore = _Semaphore_Get( id, &location );
45  switch ( location ) {
46
47    case OBJECTS_LOCAL:
48      attribute_set = the_semaphore->attribute_set;
49#if defined(RTEMS_SMP)
50      if ( _Attributes_Is_multiprocessor_resource_sharing( attribute_set ) ) {
51        MRSP_Status mrsp_status = _MRSP_Destroy(
52          &the_semaphore->Core_control.mrsp
53        );
54        if ( mrsp_status != MRSP_SUCCESSFUL ) {
55          _Objects_Put( &the_semaphore->Object );
56          _Objects_Allocator_unlock();
57          return _Semaphore_Translate_MRSP_status_code( mrsp_status );
58        }
59      } else
60#endif
61      if ( !_Attributes_Is_counting_semaphore( attribute_set ) ) {
62        if ( _CORE_mutex_Is_locked( &the_semaphore->Core_control.mutex ) &&
63             !_Attributes_Is_simple_binary_semaphore( attribute_set ) ) {
64          _Objects_Put( &the_semaphore->Object );
65          _Objects_Allocator_unlock();
66          return RTEMS_RESOURCE_IN_USE;
67        }
68        _CORE_mutex_Flush(
69          &the_semaphore->Core_control.mutex,
70          CORE_MUTEX_WAS_DELETED,
71          _Semaphore_MP_Send_object_was_deleted,
72          id
73        );
74        _CORE_mutex_Destroy( &the_semaphore->Core_control.mutex );
75      } else {
76        _CORE_semaphore_Flush(
77          &the_semaphore->Core_control.semaphore,
78          CORE_SEMAPHORE_WAS_DELETED,
79          _Semaphore_MP_Send_object_was_deleted,
80          id
81        );
82        _CORE_semaphore_Destroy( &the_semaphore->Core_control.semaphore );
83      }
84
85      _Objects_Close( &_Semaphore_Information, &the_semaphore->Object );
86
87#if defined(RTEMS_MULTIPROCESSING)
88      if ( _Attributes_Is_global( attribute_set ) ) {
89
90        _Objects_MP_Close( &_Semaphore_Information, the_semaphore->Object.id );
91
92        _Semaphore_MP_Send_process_packet(
93          SEMAPHORE_MP_ANNOUNCE_DELETE,
94          the_semaphore->Object.id,
95          0,                         /* Not used */
96          0                          /* Not used */
97        );
98      }
99#endif
100
101      _Objects_Put( &the_semaphore->Object );
102      _Semaphore_Free( the_semaphore );
103      _Objects_Allocator_unlock();
104      return RTEMS_SUCCESSFUL;
105
106#if defined(RTEMS_MULTIPROCESSING)
107    case OBJECTS_REMOTE:
108      _Objects_Allocator_unlock();
109      return RTEMS_ILLEGAL_ON_REMOTE_OBJECT;
110#endif
111
112    case OBJECTS_ERROR:
113      break;
114  }
115
116  _Objects_Allocator_unlock();
117  return RTEMS_INVALID_ID;
118}
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