what are the changes from the linux code to qnx code? - c

Question

int CreateSocket()
{
//pthread_attr_t attr;
// Socket creation for UDP
acceptSocket = socket(AF_INET,SOCK_DGRAM,0);
if(acceptSocket == -1)
{
printf("Failure: socket creation is failed, failure code\n");
return 1;
}
else
{
printf("Socket started!\n");
}
memset(&addr, 0, sizeof(addr));
addr.sin_family=AF_INET;
addr.sin_port=htons(port);
addr.sin_addr.s_addr=htonl(INADDR_ANY);
rc=bind(acceptSocket,(struct sockaddr*)&addr,sizeof(addr));
fcntl(acceptSocket, O_NONBLOCK);
if(rc== -1)
{
printf("Oh dear, something went wrong with bind()! %s\n", strerror(errno));
return -1;
}
else
{
printf("Socket an port %d \n",port);
}
return acceptSocket;
}
int create_timer (void)
{
timer_t timer_id;
int timerfd = timer_create (CLOCK_REALTIME, 0, &timer_id);
if (timerfd < 0) {
perror ("timerfd_create:");
return -1;
}
return timerfd;
}
int start_timer_msec (int fd, int msec)
{
struct itimerspec timspec;
memset (&timspec, 0, sizeof(timspec));
timspec.it_value.tv_sec = 0;
timspec.it_value.tv_nsec = msec * 1000 * 1000;
if (timer_settime(fd, 0, &timspec, NULL) < 0) {
return -1;
}
return 0;
}
int main(int argc, char *argv[])
{
Xcp_Initialize();
int fd_2ms = create_timer();
int fd_10ms = create_timer();
int fd_100ms = create_timer();
int rval = 0;
if ((fd_2ms < 0) || (fd_10ms < 0) || (fd_100ms < 0)) {
exit (1);
}
if ((sock = CreateSocket()) < 0) {
perror ("Create_socket");
// fclose (fp);
exit (1);
}
start_timer_msec (fd_2ms, 2);
start_timer_msec (fd_10ms, 10);
start_timer_msec (fd_100ms, 100);
do
{
socklen_t len;
int max_fd = 0;
fd_set rdfds;
FD_ZERO (&rdfds);
GET_MAX_FD (max_fd, sock);
FD_SET (sock, &rdfds);
GET_MAX_FD (max_fd, fd_2ms);
FD_SET (fd_2ms, &rdfds);
GET_MAX_FD (max_fd, fd_10ms);
FD_SET (fd_10ms, &rdfds);
GET_MAX_FD (max_fd, fd_100ms);
FD_SET (fd_100ms, &rdfds);
rval = select (max_fd, &rdfds, NULL, NULL, NULL);
if (rval < 0) {
if (errno == EINTR)
continue;
} else if (rval > 0) {
/*Process CLI*/
if ((FD_ISSET (sock, &rdfds)))
{
FD_CLR(sock, &rdfds);
len = sizeof(client);
printf("NEW DATA ARRIVED\n");
//non blocking mode : MSG_DONTWAIT
rc=recvfrom(sock, buf, 256, 0, (struct sockaddr*) &client, &len);
//I am calculating the time here
//InterruptTime = GetTimeStamp();
//measurements[17] = InterruptTime;
if(rc==0)
{
printf("Server has no connection..\n");
break;
}
if(rc==-1)
{
if (errno == SIGINT)
continue;
printf("Oh dear, something went wrong with read()! %s\n", strerror(errno));
break;
}
ConfigureISR( );
XcpIp_RxCallback( (uint16) rc, (uint8*) buf, (uint16) port );
}
if ((FD_ISSET (fd_2ms, &rdfds))) {
FD_CLR(fd_2ms, &rdfds);
TASK1(Task2ms_Raster);
start_timer_msec (fd_2ms, 2);
}
if ((FD_ISSET (fd_10ms, &rdfds))) {
FD_CLR(fd_10ms, &rdfds);
TASK2(Task10ms_Raster);
start_timer_msec (fd_10ms, 10);
}
if ((FD_ISSET (fd_100ms, &rdfds))) {
FD_CLR(fd_100ms, &rdfds);
TASK3(Task100ms_Raster);
start_timer_msec (fd_100ms, 100);
}
}
} while (1);
close(sock);
//fclose (fp);
return 0;
}
I created a socket to receive data from client via the ip address and port number. I created a timer to call the task for every 2ms, 10ms and 100ms. The above code is working fine for linux. But how to convert the above code for QNX RTOS. What are the changes should I make for QNX rtos. could some one please help me ??
IF I use the same code in qnx then it is crashing at int fd_2ms = create_timer(); !!