mqueue.h

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/*
 * 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 <time.h>
#include <signal.h>
#include <sys/types.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef int mqd_t;
 
struct mq_attr {
    long mq_flags;   
    long mq_maxmsg;  
    long mq_msgsize; 
    long mq_curmsgs; 
};
 
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);
 
ssize_t 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);
 
#if defined(_POSIX_TIMEOUTS) || defined(__DOXYGEN__)
ssize_t mq_timedreceive(mqd_t mqdes, char *msg_ptr, size_t msg_len, unsigned int *msg_prio,
            const struct timespec *abstime);
#endif
 
#if defined(_POSIX_TIMEOUTS) || defined(__DOXYGEN__)
int mq_timedsend(mqd_t mqdes, const char *msg_ptr, size_t msg_len, unsigned int msg_prio,
         const struct timespec *abstime);
#endif
 
int mq_notify(mqd_t mqdes, const struct sigevent *notification);
 
 
#ifdef __cplusplus
}
#endif
 
#endif  /* ZEPHYR_INCLUDE_POSIX_MESSAGE_PASSING_H_ */