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hwserver.c
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hwserver.c
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//
// Hello World server
// Binds REP socket to tcp://*:5555
// Expects "Hello" from client, replies with "World"
//
// Changes for 2.1:
// - added socket close before terminating
//
#include <zmq.h>
#include <stdio.h>
#include <unistd.h>
#include <string.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://*:5555");
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 (1);
// Send reply back to client
zmq_msg_t reply;
zmq_msg_init_data (&reply, "World", 5, NULL, NULL);
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;
}