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      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	"@(#)mqueue.h	1.12	05/06/08 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