Pathologic Publisher in C

// Pathological publisher
// Sends out 1,000 topics and then one random update per second

#include "czmq.h"

int main (int argc, char *argv [])
{
zctx_t *context = zctx_new ();
void *publisher = zsocket_new (context, ZMQ_PUB);
if (argc == 2)
zsocket_bind (publisher, argv [1]);
else
zsocket_bind (publisher, "tcp://*:5556");

// Ensure subscriber connection has time to complete
sleep (1);

// Send out all 1,000 topic messages
int topic_nbr;
for (topic_nbr = 0; topic_nbr < 1000; topic_nbr++) {
zstr_sendfm (publisher, "%03d", topic_nbr);
zstr_send (publisher, "Save Roger");
}
// Send one random update per second
srandom ((unsigned) time (NULL));
while (!zctx_interrupted) {
sleep (1);
zstr_sendfm (publisher, "%03d", randof (1000));
zstr_send (publisher, "Off with his head!");
}
zctx_destroy (&context);
return 0;
}