rtt-f030/components/pthreads/mqueue.h

47 lines
1.4 KiB
C

#ifndef __MQUEUE_H__
#define __MQUEUE_H__
#include <rtthread.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/signal.h>
#include <pthread.h>
struct mqdes
{
/* reference count and unlinked */
rt_uint16_t refcount;
rt_uint16_t unlinked;
/* RT-Thread message queue */
rt_mq_t mq;
/* next posix mqueue */
struct mqdes* next;
};
typedef struct mqdes* mqd_t;
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_close(mqd_t mqdes);
int mq_getattr(mqd_t mqdes, struct mq_attr *mqstat);
int mq_notify(mqd_t mqdes, const struct sigevent *notification);
mqd_t mq_open(const char *name, int oflag, ...);
ssize_t mq_receive(mqd_t mqdes, char *msg_ptr, size_t msg_len, unsigned *msg_prio);
int mq_send(mqd_t mqdes, const char *msg_ptr, size_t msg_len, unsigned msg_prio);
int mq_setattr(mqd_t mqdes, const struct mq_attr *mqstat,
struct mq_attr *omqstat);
ssize_t mq_timedreceive(mqd_t mqdes, char *msg_ptr, size_t msg_len,
unsigned *msg_prio, const struct timespec *abs_timeout);
int mq_timedsend(mqd_t mqdes, const char *msg_ptr, size_t msg_len, unsigned msg_prio,
const struct timespec *abs_timeout);
int mq_unlink(const char *name);
#endif