[rabbitmq-discuss] rabbitmq-c (librabbizmq) works only partially.

Mon Nov 28 12:28:11 GMT 2011

Hi,

John  <tianning.zhang at zanox.com> writes:
> I am using rabbitmq-c under windows (VS 2010). The basic get features
> works just fine. However when I tested the "consumer" feature I
> encountered the following problem.

What approach to building rabbitmq-c under windows are you using?  Are
you running the amqp_consumer example program, or your own consumer
code?

If you are developing under Visual Studio, I recommend using the
cmake-based build, as that allows you to build librabbitmq and the
examples within VS.

> 1. Starting application debugging from VS 2010 (even without any break points
> and in release configuration) everything looks ok (calling amqp_simple_rpc
> returns AMQP_RESPONSE_NORMAL)! 
>
> 2. Starting the application without debuging I got an error in calling 
> amqp_rpc_reply_t amqp_simple_rpc
>
> with amqp_response_type_enum reply_type = AMQP_RESPONSE_LIBRARY_EXCEPTION
> and library_error = ERROR_BAD_AMQP_DATA
>
> I guess there is some "DEBUG" coding in source. Can anyone tell we
> where I can make changes to solve this problem??

There's nothing in the rabbitmq-c codebase ot make it behave differently
in debug builds.

> I have downloaded rabbitmq-c-default from 21.09.2011 and rebuild the
> sources under windows. Rabbitmq servers have the version 2.4.1 and
> 2.6.1.
>
> I also tried the newest version from the server (dated 25.11, default
> and the version 7cecf64752fd) - there I got the buffer overrun error.

There have not been significant changes to the rabbitmq-c code between
those two versions.  I recommend that you use the latest version,
because it has cmake build support.  Could you say more about the buffer
overrun you are seeing?

David

-- 
David Wragg
Staff Engineer, RabbitMQ
VMware, Inc.