source: rtems/cpukit/posix/src/mqueue.c @ f845e96

4.104.114.84.95
Last change on this file since f845e96 was f845e96, checked in by Joel Sherrill <joel.sherrill@…>, on Jul 5, 2002 at 6:13:18 PM

2002-07-05 Joel Sherrill <joel@…>

  • include/rtems/posix/cancel.h, src/cancel.c, src/cancelrun.c, src/mqueue.c, src/pthread.c, src/semaphore.c, src/setcancelstate.c, src/setcanceltype.c, src/testcancel.c: Per PR164, corrected the behavior of thread cancellation and did some cleanup as a side-effect.
  • Property mode set to 100644
File size: 2.7 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#if HAVE_CONFIG_H
18#include "config.h"
19#endif
20
21#include <stdarg.h>
22
23#include <pthread.h>
24#include <limits.h>
25#include <errno.h>
26#include <fcntl.h>
27#include <mqueue.h>
28
29#include <rtems/system.h>
30#include <rtems/score/watchdog.h>
31#include <rtems/seterr.h>
32#include <rtems/posix/mqueue.h>
33#include <rtems/posix/time.h>
34
35/*PAGE
36 *
37 *  _POSIX_Message_queue_Manager_initialization
38 *
39 *  This routine initializes all message_queue manager related data structures.
40 *
41 *  Input parameters:
42 *    maximum_message_queues - maximum configured message_queues
43 *
44 *  Output parameters:  NONE
45 */
46 
47void _POSIX_Message_queue_Manager_initialization(
48  unsigned32 maximum_message_queues
49)
50{
51  _Objects_Initialize_information(
52    &_POSIX_Message_queue_Information, /* object information table */
53    OBJECTS_POSIX_API,                 /* object API */
54    OBJECTS_POSIX_MESSAGE_QUEUES,      /* object class */
55    maximum_message_queues,            /* maximum objects of this class */
56    sizeof( POSIX_Message_queue_Control ),
57                                /* size of this object's control block */
58    TRUE,                       /* TRUE if names for this object are strings */
59    _POSIX_PATH_MAX             /* maximum length of each object's name */
60#if defined(RTEMS_MULTIPROCESSING)
61    ,
62    FALSE,                      /* TRUE if this is a global object class */
63    NULL                        /* Proxy extraction support callout */
64#endif
65  );
66  _Objects_Initialize_information(
67    &_POSIX_Message_queue_Information_fds,
68    OBJECTS_POSIX_API,
69    OBJECTS_POSIX_MESSAGE_QUEUE_FDS,
70    maximum_message_queues,
71    sizeof( POSIX_Message_queue_Control_fd ),
72                                /* size of this object's control block */
73    FALSE,                      /* TRUE if names for this object are strings */
74    0                           /* maximum length of each object's name */
75#if defined(RTEMS_MULTIPROCESSING)
76    ,
77    FALSE,                      /* TRUE if this is a global object class */
78    NULL                        /* Proxy extraction support callout */
79#endif
80  );
81}
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