siginfo_t* si;
    f(si->si_code == SI_QUEUE)
   {
        printf("User RTS Signal: %d\n", si->si_signo);
        printf("User PID: %d\n", si->si_pid);
        printf("User data: %d\n", si->si_value.sival_int);
 
    }
    else
    {
        printf("Non real time Singal:  \n"  );
    }

siginfo_t *info;
int cbNumber = info->si_value.sival_int;
	printf("AIO operation %d completed returning \n",cbNumber);

printf("the msg is: %s\n",  (char *)req->aio_buf);

printf("the msg is: %s\n",  (char *)req[cbNumber].aio_buf);