tenok_2mqueue_8h_source.html

 #ifndef __MQUEUE_H__

 #define __MQUEUE_H__


 #include <sys/types.h>


 #include <common/list.h>


 typedef uint32_t mqd_t;


 struct mq_attr {

     int mq_flags;   /* Flags: 0 or O_NONBLOCK */

     int mq_maxmsg;  /* Max number of the messages in the queue */

     int mq_msgsize; /* Byte size of the message */

     int mq_curmsgs; /* Number of the messages currently in the queue */

 };


 int mq_getattr(mqd_t mqdes, struct mq_attr *attr);


 int mq_setattr(mqd_t mqdes,

                const struct mq_attr *newattr,

                struct mq_attr *oldattr);


 mqd_t mq_open(const char *name, int oflag, struct mq_attr *attr);


 int mq_close(mqd_t mqdes);


 int mq_unlink(const char *name);


 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);


 #endif

list.h

mq_attr
Definition: mqueue.h:13

mq_open
mqd_t mq_open(const char *name, int oflag, struct mq_attr *attr)
Create a new message queue or open an existing queue.
Definition: mqueue.c:204

mq_close
int mq_close(mqd_t mqdes)
Close the message queue descriptor.
Definition: mqueue.c:209

mq_getattr
int mq_getattr(mqd_t mqdes, struct mq_attr *attr)
Retrieve atributes of the message queue referred to by the message queue descriptor mqdes.
Definition: mqueue.c:192

mq_receive
ssize_t mq_receive(mqd_t mqdes, char *msg_ptr, size_t msg_len, unsigned int *msg_prio)
Remove the oldest message with highest priority from the message queue referred to by the message que...
Definition: mqueue.c:219

mq_setattr
int mq_setattr(mqd_t mqdes, const struct mq_attr *newattr, struct mq_attr *oldattr)
Modify attributes of the message queue referred to by the message queue descriptor mqdes.
Definition: mqueue.c:197

mq_send
int mq_send(mqd_t mqdes, const char *msg_ptr, size_t msg_len, unsigned int msg_prio)
Add the message pointed to by msg_ptr to the message queue referred to by the message queue descripto...
Definition: mqueue.c:227

types.h