[zeromq-dev] Problem on ARM platform

[Michael Haberler]

David,

Am 11.04.2014 um 19:26 schrieb David Jagoe <davidjagoe at gmail.com>:

> Ahoy,
> 
> I've got a simple program that works on my PC but not when I compile it on an ARM platform.
> 
> In both cases I'm running on Linux (Ubuntu on my PC and Debian Wheezy on the ARM target).
> 
> In both cases I have compiled the following versions of zmq:
> 
> czmq-2.1.0.tar.gz
> zeromq-4.0.4.tar.gz
> 
> python-zmq from ubuntu/debian repo respectively.
> 
> Thanks for any help. Programs below:
> 
> 
> C program publishing data:
> 
> #define THREAD_USE_POSIX
> #include <stdlib.h>
> #include <stdio.h>
> #include <time.h>
> #include "czmq.h"
> 
> #define PUB_SOCKET_ADDRESS "ipc:///tmp/pub.ipc"
> #define TRUE 1
> 
> 
> void publish(void *socket) {
>   while (TRUE) {
>     sleep(1);
>     zstr_send(socket, "hello 1 2");

----^^^^^^^^^ you dont give a topic - you would want to send a multipart message here: ["topic", "contents"]
try:

 zstr_sendm (socket, "topic");
 zstr_send(socket, "hello 1 2");

-m

>   }
> }
> 
> 
> int main(int argc, char *argv[]) {
>   
>   zctx_t *context = zctx_new();
> 
>   void *socket = zsocket_new(context, ZMQ_PUB);
>   zsocket_bind(socket, PUB_SOCKET_ADDRESS);
> 
>   publish(socket);
> 
> }
> 
> 
> =====================
> 
> Python program receiving:
> 
> 
> import zmq
> import time
> 
> context = zmq.Context()
> socket = context.socket(zmq.SUB)
> socket.connect("ipc:///tmp/pub.ipc")
> # socket.connect("tcp://localhost:5556")
> 
> socket.setsockopt(zmq.SUBSCRIBE, "")
> 
> while True:
>     print socket.recv()
> 
> 
> 
> Both programs run fine but I get nothing printed in the python program when this is running on the ARM platform. The same code (and library versions) work fine on my PC.
> 
> Any suggestions?
> 
> 
> Thanks!
> David
> 
> 
> 
> -- 
> David Jagoe
> 
> davidjagoe at gmail.com
> +18053284389
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