[zeromq-dev] memory leak or heap problem in czmq on Windows build

[Pritesh Acharya]

And the strange thing is, If I use static version of czmq build, everything
works fine and no error on free(string).


On Wed, Apr 2, 2014 at 11:55 AM, Pritesh Acharya
<priteshacharya at gmail.com>wrote:

> Hi,
> zmq version: zeromq-4.0.3(build as Windows DLL)
> czmq version: czmq-2.0.3(build as Windows DLL)
> IDE: Visual Studio Professional 2010
>
> I have a small progream which creates two thread and uses ZMQ_PAIR socket
> over inproc to send data from one to another.
> One thread sends data using zstr_send and other receives using zstr_recv.
> If I don't free string received from zstr_recv , I get constant increase
> of memory (via Task Manager).
> If I free it using free(), i get heap corruption error on the frist free.
>
> Here is the code
>
>
> *#include <iostream>*
> *#include "czmq.h"*
> *#include <boost/thread.hpp>*
>
>  *zctx_t *zmq_ctx=NULL;*
>
> *void normalizer() *
> *{*
> *    void *xmitter;*
> * xmitter = zsocket_new(zmq_ctx, ZMQ_PAIR);*
> * zsocket_connect (xmitter, "inproc://sender");*
> *    while(1)*
> *    {*
> * zstr_send (xmitter, "hello");*
> * }*
> * zsocket_destroy (zmq_ctx, xmitter);*
> *}*
>
> *void sender() *
> *{*
> * void *receiver = zsocket_new(zmq_ctx, ZMQ_PAIR);*
> *    int rc = zsocket_bind (receiver, "inproc://sender");*
> * boost::thread t(&normalizer);*
> * int counter=0;*
> *    while(1)*
> *    {*
> * char *string = zstr_recv (receiver);*
> * counter++;*
> *        if(counter%10000==0)*
> * {*
> *            std::cout << "counter: " << counter << std::endl;*
> * }*
> * //free (string); //problem is here*
> * }*
> * zsocket_destroy(zmq_ctx, receiver);*
> *}*
>
> *void main(void)*
> *{*
> * zmq_ctx = zctx_new();*
> * boost::thread t(&sender);*
> * t.join();*
> *}*
>
>
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