mqueue.h revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2003 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _MQUEUE_H
#define _MQUEUE_H
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/feature_tests.h>
#include <sys/types.h>
#include <sys/fcntl.h>
#include <sys/signal.h>
#include <sys/siginfo.h>
#include <time.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef void *mqd_t; /* opaque message queue descriptor */
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_pad[12];
};
/*
* function prototypes
*/
#if defined(__STDC__)
#if (_POSIX_C_SOURCE - 0 > 0) && (_POSIX_C_SOURCE - 0 <= 2)
#error "POSIX Message Passing is not supported in POSIX.1-1990"
#endif
#include <sys/siginfo.h>
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);
int mq_timedsend(mqd_t, const char *, size_t, unsigned int,
const struct timespec *);
int mq_reltimedsend_np(mqd_t, const char *, size_t, unsigned int,
const struct timespec *);
ssize_t mq_receive(mqd_t, char *, size_t, unsigned int *);
ssize_t mq_timedreceive(mqd_t, char *_RESTRICT_KYWD, size_t,
unsigned int *_RESTRICT_KYWD,
const struct timespec *_RESTRICT_KYWD);
ssize_t mq_reltimedreceive_np(mqd_t, char *_RESTRICT_KYWD, size_t,
unsigned int *_RESTRICT_KYWD,
const struct timespec *_RESTRICT_KYWD);
int mq_notify(mqd_t, const struct sigevent *);
int mq_getattr(mqd_t, struct mq_attr *);
int mq_setattr(mqd_t, const struct mq_attr *_RESTRICT_KYWD,
struct mq_attr *_RESTRICT_KYWD);
#else
mqd_t mq_open();
int mq_close();
int mq_unlink();
int mq_send();
int mq_timedsend();
int mq_reltimedsend_np();
ssize_t mq_receive();
ssize_t mq_timedreceive();
ssize_t mq_reltimedreceive_np();
int mq_notify();
int mq_getattr();
int mq_setattr();
#endif /* __STDC__ */
#ifdef __cplusplus
}
#endif
#endif /* _MQUEUE_H */