mqueue.h

Go to the documentation of this file.

/*
 * Copyright (c) 2018 Intel Corporation
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef ZEPHYR_INCLUDE_POSIX_MESSAGE_PASSING_H_
#define ZEPHYR_INCLUDE_POSIX_MESSAGE_PASSING_H_
 
#include <zephyr/kernel.h>
#include <zephyr/posix/time.h>
#include <zephyr/posix/fcntl.h>
#include <zephyr/posix/signal.h>
#include <zephyr/posix/sys/stat.h>
#include "posix_types.h"
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef void *mqd_t;
 
struct mq_attr {
        long mq_flags;
        long mq_maxmsg;
        long mq_msgsize;
        long mq_curmsgs;        /* Number of messages currently queued. */
};
 
mqd_t mq_open(const char *name, int oflags, ...);
int mq_close(mqd_t mqdes);
int mq_unlink(const char *name);
int mq_getattr(mqd_t mqdes, struct mq_attr *mqstat);
int mq_receive(mqd_t mqdes, char *msg_ptr, size_t msg_len,
                   unsigned int *msg_prio);
int mq_send(mqd_t mqdes, const char *msg_ptr, size_t msg_len,
            unsigned int msg_prio);
int mq_setattr(mqd_t mqdes, const struct mq_attr *mqstat,
               struct mq_attr *omqstat);
int mq_timedreceive(mqd_t mqdes, char *msg_ptr, size_t msg_len,
                        unsigned int *msg_prio, const struct timespec *abstime);
int mq_timedsend(mqd_t mqdes, const char *msg_ptr, size_t msg_len,
                 unsigned int msg_prio, const struct timespec *abstime);
int mq_notify(mqd_t mqdes, const struct sigevent *notification);
 
#ifdef __cplusplus
}
#endif
 
#endif  /* ZEPHYR_INCLUDE_POSIX_MESSAGE_PASSING_H_ */