1 | /** |
---|
2 | * @file |
---|
3 | * |
---|
4 | * @brief POSIX Message Queues Private Private Support |
---|
5 | * |
---|
6 | * This include file contains all the private support information for |
---|
7 | * POSIX Message Queues. |
---|
8 | * |
---|
9 | * The structure of the routines is identical to that of POSIX |
---|
10 | * Message_queues to leave the option of having unnamed message |
---|
11 | * queues at a future date. They are currently not part of the |
---|
12 | * POSIX standard but unnamed message_queues are. This is also |
---|
13 | * the reason for the apparently unnecessary tracking of |
---|
14 | * the process_shared attribute. [In addition to the fact that |
---|
15 | * it would be trivial to add pshared to the mq_attr structure |
---|
16 | * and have process private message queues.] |
---|
17 | * |
---|
18 | * This code ignores the O_RDONLY/O_WRONLY/O_RDWR flag at open |
---|
19 | * time. |
---|
20 | */ |
---|
21 | |
---|
22 | /* |
---|
23 | * COPYRIGHT (c) 1989-2011. |
---|
24 | * On-Line Applications Research Corporation (OAR). |
---|
25 | * |
---|
26 | * The license and distribution terms for this file may be |
---|
27 | * found in the file LICENSE in this distribution or at |
---|
28 | * http://www.rtems.org/license/LICENSE. |
---|
29 | */ |
---|
30 | |
---|
31 | #ifndef _RTEMS_POSIX_MQUEUE_H |
---|
32 | #define _RTEMS_POSIX_MQUEUE_H |
---|
33 | |
---|
34 | #include <signal.h> |
---|
35 | #include <mqueue.h> /* struct mq_attr */ |
---|
36 | #include <rtems/score/coremsg.h> |
---|
37 | #include <rtems/score/objectdata.h> |
---|
38 | |
---|
39 | #ifdef __cplusplus |
---|
40 | extern "C" { |
---|
41 | #endif |
---|
42 | |
---|
43 | /** |
---|
44 | * @defgroup POSIX_MQUEUE_P Message Queues Private Support |
---|
45 | * |
---|
46 | * @ingroup POSIXAPI |
---|
47 | * |
---|
48 | */ |
---|
49 | /**@{**/ |
---|
50 | |
---|
51 | /* |
---|
52 | * Data Structure used to manage a POSIX message queue |
---|
53 | */ |
---|
54 | |
---|
55 | typedef struct { |
---|
56 | Objects_Control Object; |
---|
57 | CORE_message_queue_Control Message_queue; |
---|
58 | bool linked; |
---|
59 | uint32_t open_count; |
---|
60 | struct sigevent notification; |
---|
61 | int oflag; |
---|
62 | } POSIX_Message_queue_Control; |
---|
63 | |
---|
64 | extern const uint32_t _Configuration_POSIX_Maximum_message_queues; |
---|
65 | |
---|
66 | /** @} */ |
---|
67 | |
---|
68 | #ifdef __cplusplus |
---|
69 | } |
---|
70 | #endif |
---|
71 | |
---|
72 | #endif |
---|
73 | /* end of include file */ |
---|