Parallel task worker in C

// Task worker
// Connects PULL socket to tcp://localhost:5557
// Collects workloads from ventilator via that socket
// Connects PUSH socket to tcp://localhost:5558
// Sends results to sink via that socket
#include "zhelpers.h"

int main (void)
void *context = zmq_ctx_new ();

// Socket to receive messages on
void *receiver = zmq_socket (context, ZMQ_PULL);
zmq_connect (receiver, "tcp://localhost:5557");

// Socket to send messages to
void *sender = zmq_socket (context, ZMQ_PUSH);
zmq_connect (sender, "tcp://localhost:5558");

// Process tasks forever
while (true) {
char *string = s_recv (receiver);
// Simple progress indicator for the viewer
fflush (stdout);
printf ("%s.", string);

// Do the work
s_sleep (atoi (string));
free (string);

// Send results to sink
s_send (sender, "");
zmq_close (receiver);
zmq_close (sender);
zmq_ctx_destroy (context);
return 0;