communication-interface.h

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#ifndef COMMUNICATION_INTERFACE_H_
#define COMMUNICATION_INTERFACE_H_
#include <sys/types.h>
#include <sys/msg.h>
#include <unistd.h>
#include <string.h>
#define MAX_MSG_LENGTH         128
typedef struct{
        int mtype;
        char mtext[MAX_MSG_LENGTH];
}msg_sbuf_t;

extern int create_msg_queue(int key);
extern int set_msg_queue_length(int msgfd, int length);
extern int delete_msg_queue(int msgfd);
extern int sndto_msg_queue(int msgfd, unsigned char *message,int length);
extern int rcvfrm_msg_queue(int msgfd, unsigned char *message);
#endif