mqueue.h
2.31 KB
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
/*-
* Copyright (c) 2005 David Xu <davidxu@freebsd.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#pragma once
#include <sys/cdefs.h>
#include "dspal_types.h"
#include "dspal_signal.h"
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. */
long __reserved[4]; /* Ignored for input, zeroed for output */
};
struct timespec;
typedef int mqd_t;
__BEGIN_DECLS
mqd_t mq_open(const char *, int, ...);
int mq_close(mqd_t);
int mq_unlink(const char *);
int mq_send(mqd_t, const char *, size_t, unsigned);
int mq_timedsend(mqd_t, const char *, size_t, unsigned,
const struct timespec *);
ssize_t mq_receive(mqd_t, char *, size_t, unsigned *);
ssize_t mq_timedreceive(mqd_t, char *__restrict, size_t,
unsigned *__restrict, const struct timespec *__restrict);
int mq_getattr(mqd_t, struct mq_attr *);
int mq_setattr(mqd_t, const struct mq_attr *__restrict,
struct mq_attr *__restrict);
__END_DECLS