[zeromq-dev] Unable to run Weather update server (wuserver.c) example

[Shaukat Mahmood Ahmad]

Hi,
I am unable to run Weather update server (wuserver.c) example due to
failed assertion at second bind request as following.

rc = zmq_bind (publisher, "ipc://weather.ipc");
assert (rc == 0);

The above assert fails as zmq_bind() returns -1.

Can anybody help me to resolve this error.


: Complete Code


#include "zhelpers.h"

int main ()
{
    void *context = zmq_ctx_new();
   void *publisher = zmq_socket(context, ZMQ_PUB);
   int rc = zmq_bind(publisher, "tcp://*:5556");
   assert (rc == 0);
   rc = zmq_bind(publisher, "ipc://weather.ipc");
   rc = zmq_bind (publisher, "ipc://weather.ipc");
   assert (rc == 0);

   srand ((unsigned) time(NULL));

   while (1)
   {
      int zipcode, temperature, relhumidity;
      char update[20];
      zipcode = randof (100000);
      temperature = randof (215) - 80;
      relhumidity = randof (50) + 10;
      sprintf (update, "%05d %d %d", zipcode, temperature, relhumidity);
      s_send( publisher, update);
   }
   zmq_close (publisher);
   zmq_ctx_destroy (context);
   return 0;
}