xref: /titanic_52/usr/src/head/mqueue.h (revision 0eb822a1c0c2bea495647510b75f77f0e57633eb)
1  /*
2   * CDDL HEADER START
3   *
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.
8   *
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.
13   *
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]
19   *
20   * CDDL HEADER END
21   */
22  /*
23   * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
24   * Use is subject to license terms.
25   */
26  
27  #ifndef _MQUEUE_H
28  #define	_MQUEUE_H
29  
30  #pragma ident	"%Z%%M%	%I%	%E% SMI"
31  
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>
38  
39  #ifdef	__cplusplus
40  extern "C" {
41  #endif
42  
43  typedef void	*mqd_t;		/* opaque message queue descriptor */
44  
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];
51  };
52  
53  /*
54   * function prototypes
55   */
56  #if	defined(__STDC__)
57  #if	(_POSIX_C_SOURCE - 0 > 0) && (_POSIX_C_SOURCE - 0 <= 2)
58  #error	"POSIX Message Passing is not supported in POSIX.1-1990"
59  #endif
60  #include <sys/siginfo.h>
61  mqd_t	mq_open(const char *, int, ...);
62  int	mq_close(mqd_t);
63  int	mq_unlink(const char *);
64  int	mq_send(mqd_t, const char *, size_t, unsigned int);
65  int	mq_timedsend(mqd_t, const char *, size_t, unsigned int,
66  		const struct timespec *);
67  int	mq_reltimedsend_np(mqd_t, const char *, size_t, unsigned int,
68  		const struct timespec *);
69  ssize_t	mq_receive(mqd_t, char *, size_t, unsigned int *);
70  ssize_t	mq_timedreceive(mqd_t, char *_RESTRICT_KYWD, size_t,
71  		unsigned int *_RESTRICT_KYWD,
72  		const struct timespec *_RESTRICT_KYWD);
73  ssize_t	mq_reltimedreceive_np(mqd_t, char *_RESTRICT_KYWD, size_t,
74  		unsigned int *_RESTRICT_KYWD,
75  		const struct timespec *_RESTRICT_KYWD);
76  int	mq_notify(mqd_t, const struct sigevent *);
77  int	mq_getattr(mqd_t, struct mq_attr *);
78  int	mq_setattr(mqd_t, const struct mq_attr *_RESTRICT_KYWD,
79  		struct mq_attr *_RESTRICT_KYWD);
80  #else
81  mqd_t	mq_open();
82  int	mq_close();
83  int	mq_unlink();
84  int	mq_send();
85  int	mq_timedsend();
86  int	mq_reltimedsend_np();
87  ssize_t	mq_receive();
88  ssize_t	mq_timedreceive();
89  ssize_t	mq_reltimedreceive_np();
90  int	mq_notify();
91  int	mq_getattr();
92  int	mq_setattr();
93  #endif	/* __STDC__ */
94  
95  #ifdef	__cplusplus
96  }
97  #endif
98  
99  #endif	/* _MQUEUE_H */
100