docs/how-to-build.md: use proper markup for directory names
[unleashed/tickless.git] / include / mqueue.h
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1 /*
2 * CDDL HEADER START
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
20 * CDDL HEADER END
23 * Copyright 2014 Garrett D'Amore <garrett@damore.org>
25 * Copyright 2003 Sun Microsystems, Inc. All rights reserved.
26 * Use is subject to license terms.
29 #ifndef _MQUEUE_H
30 #define _MQUEUE_H
32 #include <sys/feature_tests.h>
33 #include <sys/types.h>
34 #include <sys/fcntl.h>
35 #include <sys/signal.h>
36 #include <sys/siginfo.h>
37 #include <time.h>
39 #ifdef __cplusplus
40 extern "C" {
41 #endif
43 typedef void *mqd_t; /* opaque message queue descriptor */
45 struct mq_attr {
46 long mq_flags; /* message queue flags */
47 long mq_maxmsg; /* maximum number of messages */
48 long mq_msgsize; /* maximum message size */
49 long mq_curmsgs; /* number of messages currently queued */
50 int mq_pad[12];
54 * function prototypes
56 #if (_POSIX_C_SOURCE - 0 > 0) && (_POSIX_C_SOURCE - 0 <= 2)
57 #error "POSIX Message Passing is not supported in POSIX.1-1990"
58 #endif
59 #include <sys/siginfo.h>
60 mqd_t mq_open(const char *, int, ...);
61 int mq_close(mqd_t);
62 int mq_unlink(const char *);
63 int mq_send(mqd_t, const char *, size_t, unsigned int);
64 int mq_timedsend(mqd_t, const char *, size_t, unsigned int,
65 const struct timespec *);
66 int mq_reltimedsend_np(mqd_t, const char *, size_t, unsigned int,
67 const struct timespec *);
68 ssize_t mq_receive(mqd_t, char *, size_t, unsigned int *);
69 ssize_t mq_timedreceive(mqd_t, char *_RESTRICT_KYWD, size_t,
70 unsigned int *_RESTRICT_KYWD,
71 const struct timespec *_RESTRICT_KYWD);
72 ssize_t mq_reltimedreceive_np(mqd_t, char *_RESTRICT_KYWD, size_t,
73 unsigned int *_RESTRICT_KYWD,
74 const struct timespec *_RESTRICT_KYWD);
75 int mq_notify(mqd_t, const struct sigevent *);
76 int mq_getattr(mqd_t, struct mq_attr *);
77 int mq_setattr(mqd_t, const struct mq_attr *_RESTRICT_KYWD,
78 struct mq_attr *_RESTRICT_KYWD);
80 #ifdef __cplusplus
82 #endif
84 #endif /* _MQUEUE_H */