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

int main (void)
{
  //  Socket to talk to clients
  void *context = zmq_ctx_new ();
    void *responder = zmq_socket (context, ZMQ_REP);
    unsigned int uiTimeout = 5 * 1000;

    // zmq_setsockopt(responder, ZMQ_RCVTIMEO, &uiTimeout, sizeof(uiTimeout));
    zmq_setsockopt(responder, ZMQ_SNDTIMEO, &uiTimeout, sizeof(uiTimeout));
    int rc = zmq_bind (responder, "tcp://*:5555");
    assert (rc == 0);

    while (1) {
        char buffer [10];
        int recv_num = zmq_recv (responder, buffer, sizeof buffer, 0);
        if(recv_num < 0)
        {
            printf("1111111111111111111\n");
            continue;
        }
        printf ("Received %s\n", buffer);
        sleep (4);         //  Do some 'work'
        zmq_send (responder, "World", 5, 0);
        // sleep(4);
    }
    return 0;
}