Current File : //usr/include/mqueue.h

/*
 * Copyright (c) 1993, 2003, Oracle and/or its affiliates. All rights reserved.
 */

#ifndef _MQUEUE_H
#define	_MQUEUE_H

#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 */