#include <zmq.hpp>
#include <string>
#include <iostream>
#include <unistd.h>

int main () {
    zmq::context_t context (1);
    zmq::socket_t socket (context, zmq::socket_type::rep);
    socket.bind ("tcp://*:5555");

    while (true) {
        zmq::message_t request;
        socket.recv (request, zmq::recv_flags::none);
        std::cout << "Received request" << std::endl;

        sleep(1);

        zmq::message_t reply (5);
        memcpy (reply.data (), "World", 5);
        socket.send (reply, zmq::send_flags::none);
    }
    return 0;
}