source: rtems/cpukit/posix/src/mqueuedeletesupp.c @ 96d4aea

4.104.114.84.95
Last change on this file since 96d4aea was 96d4aea, checked in by Jennifer Averett <Jennifer.Averett@…>, on Dec 23, 1999 at 10:07:43 PM

+ Initial debug

  • Property mode set to 100644
File size: 1.7 KB
Line 
1/*
2 *  NOTE:  The structure of the routines is identical to that of POSIX
3 *         Message_queues to leave the option of having unnamed message
4 *         queues at a future date.  They are currently not part of the
5 *         POSIX standard but unnamed message_queues are.  This is also
6 *         the reason for the apparently unnecessary tracking of
7 *         the process_shared attribute.  [In addition to the fact that
8 *         it would be trivial to add pshared to the mq_attr structure
9 *         and have process private message queues.]
10 *
11 *         This code ignores the O_RDONLY/O_WRONLY/O_RDWR flag at open
12 *         time.
13 *
14 *  $Id$
15 */
16
17#include <stdarg.h>
18
19#include <pthread.h>
20#include <limits.h>
21#include <errno.h>
22#include <fcntl.h>
23#include <mqueue.h>
24
25#include <rtems/system.h>
26#include <rtems/score/watchdog.h>
27#include <rtems/posix/seterr.h>
28#include <rtems/posix/mqueue.h>
29#include <rtems/posix/time.h>
30
31/*PAGE
32 *
33 *  _POSIX_Message_queue_Delete
34 */
35 
36void _POSIX_Message_queue_Delete(
37  POSIX_Message_queue_Control *the_mq
38)
39{
40  if ( !the_mq->linked && !the_mq->open_count ) {
41      _Objects_Close( &_POSIX_Message_queue_Information, &the_mq->Object );
42 
43      _CORE_message_queue_Flush(
44        &the_mq->Message_queue
45      );
46
47    _POSIX_Message_queue_Free( the_mq );
48 
49#if defined(RTEMS_MULTIPROCESSING)
50    if ( the_mq->process_shared == PTHREAD_PROCESS_SHARED ) {
51 
52      _Objects_MP_Close(
53        &_POSIX_Message_queue_Information,
54        the_mq->Object.id
55      );
56 
57      _POSIX_Message_queue_MP_Send_process_packet(
58        POSIX_MESSAGE_QUEUE_MP_ANNOUNCE_DELETE,
59        the_mq->Object.id,
60        0,                         /* Not used */
61        0                          /* Not used */
62      );
63    }
64#endif
65 
66  }
67}
68
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