void * tcp (void * arg){
    struct * info = arg;
    // set up socket fd
    while(True){
        int val = recvData(info, fd);
    }
}

void * icmp (void * arg){
    struct * info = arg;
    // set up socket fd
    while(True){
        int val = receiveData(info, fd);
    }
}

//function that is called by thread 1 and thread 2 concurrently
void receiveData(struct * info, int fd){
    int val = recv(fd, buf, 1000, 0);
}