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// Weather update client
// Connects SUB socket to tcp://localhost:5556
// Collects weather updates and finds avg temp in zipcode
#include <zmq.h>
#include <assert.h>
#include <time.h>
#include <string.h>
#include "utils.h"
int main (int argc, char *argv [])
{
if(argc != 3){
printf("Usage: %s <address> <port>",argv[0]);
exit(1);
}
//----- Arguments
char *ip=argv[1];
int port=atoi(argv[2]);
//----- Init ZMQ
void *context = zmq_ctx_new ();
void *subscriber = zmq_socket (context, ZMQ_SUB);
char bindto[30];
sprintf(bindto,"tcp://%s:%d",ip,port);
int rc = zmq_connect (subscriber, bindto);
if(rc!=0){
printf("Failed to bind zmq on %s\n",bindto);
exit(1);
}
rc = zmq_setsockopt (subscriber, ZMQ_SUBSCRIBE,
ZMQ_TOKEN, strlen(ZMQ_TOKEN));
//----- Listen
char buffer[ZMQ_MSG_SIZE];
int size;
while(1){
size=zmq_recv (subscriber, buffer, ZMQ_MSG_SIZE-1, 0);
buffer[size < ZMQ_MSG_SIZE ? size : ZMQ_MSG_SIZE - 1] = '\0';
printf("Received: %s\n",buffer);
}
zmq_close (subscriber);
zmq_ctx_destroy (context);
return 0;
}
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