source: rtems/c/src/exec/posix/src/mqueuedeletesupp.c @ 70329c80

4.104.114.84.95
Last change on this file since 70329c80 was 70329c80, checked in by Jennifer Averett <Jennifer.Averett@…>, on Jan 12, 2000 at 6:41:14 PM

+ Changed call from core flush to core close routine. This flushes waiting

queues as well as the messages.

  • Property mode set to 100644
File size: 1.8 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_Close(
44        &the_mq->Message_queue,
45        NULL,        /* no MP support */
46        CORE_MESSAGE_QUEUE_STATUS_WAS_DELETED
47      );
48
49    _POSIX_Message_queue_Free( the_mq );
50 
51#if defined(RTEMS_MULTIPROCESSING)
52    if ( the_mq->process_shared == PTHREAD_PROCESS_SHARED ) {
53 
54      _Objects_MP_Close(
55        &_POSIX_Message_queue_Information,
56        the_mq->Object.id
57      );
58 
59      _POSIX_Message_queue_MP_Send_process_packet(
60        POSIX_MESSAGE_QUEUE_MP_ANNOUNCE_DELETE,
61        the_mq->Object.id,
62        0,                         /* Not used */
63        0                          /* Not used */
64      );
65    }
66#endif
67 
68  }
69}
70
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