hwserver_loop

#include <zmq.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <windows.h>

int main (void)
{
    void *context = zmq_init (1);

    //  Socket to talk to clients
    void *responder = zmq_socket (context, ZMQ_REP);
    zmq_bind (responder, "tcp://*:5550");

    while (1) {
        //  Wait for next request from client
        zmq_msg_t request;
        zmq_msg_init (&request);
        zmq_recv (responder, &request, 0);
        printf ("Received Hello\n");
        zmq_msg_close (&request);

        //  Do some 'work'
//        Sleep (10);

        //  Send reply back to client
        zmq_msg_t reply;
        zmq_msg_init_size (&reply, 5);
        memcpy (zmq_msg_data (&reply), "World", 5);
        zmq_send (responder, &reply, 0);
        zmq_msg_close (&reply);
    }
    //  We never get here but if we did, this would be how we end
    zmq_close (responder);
    zmq_term (context);
    return 0;
}