1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
/*
* File : mqueue.h
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2012, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
*/
#ifndef __MQUEUE_H__
#define __MQUEUE_H__
#include <rtthread.h>
#include <pthread.h>
struct mqdes
{
/* reference count and unlinked */
rt_uint16_t refcount;
rt_uint16_t unlinked;
/* RT-Thread message queue */
rt_mq_t mq;
/* next posix mqueue */
struct mqdes* next;
};
typedef struct mqdes* mqd_t;
struct mq_attr
{
long mq_flags; /* Message queue flags. */
long mq_maxmsg; /* Maximum number of messages. */
long mq_msgsize; /* Maximum message size. */
long mq_curmsgs; /* Number of messages currently queued. */
};
int mq_close(mqd_t mqdes);
int mq_getattr(mqd_t mqdes, struct mq_attr *mqstat);
int mq_notify(mqd_t mqdes, const struct sigevent *notification);
mqd_t mq_open(const char *name, int oflag, ...);
ssize_t mq_receive(mqd_t mqdes, char *msg_ptr, size_t msg_len, unsigned *msg_prio);
int mq_send(mqd_t mqdes, const char *msg_ptr, size_t msg_len, unsigned msg_prio);
int mq_setattr(mqd_t mqdes,
const struct mq_attr *mqstat,
struct mq_attr *omqstat);
ssize_t mq_timedreceive(mqd_t mqdes,
char *msg_ptr,
size_t msg_len,
unsigned *msg_prio,
const struct timespec *abs_timeout);
int mq_timedsend(mqd_t mqdes,
const char *msg_ptr,
size_t msg_len,
unsigned msg_prio,
const struct timespec *abs_timeout);
int mq_unlink(const char *name);
#endif
|
