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https://issues.apache.org/jira/browse/AMQCPP-388?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13215786#comment-13215786
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Helen Huang commented on AMQCPP-388:
------------------------------------
I got several compiler errors when I was trying to build our app with v3.4.1
One error is that "decaf/util/concurrent/TaskListener.h" seems to be missing.
In our app, we are using ThreadPool, Task, and TaskListener that are available
in v3.2.3. I am wondering if they are supported in v3.4.1. If not, do you
provide similar utilities in the new version? Also, it will be very much
helpful if you can point me to some examples that use the new utilities. Thanks
a lot for your help!
> AprPool::getAprPool() returns NULL, causing access violation and application
> crash
> ----------------------------------------------------------------------------------
>
> Key: AMQCPP-388
> URL: https://issues.apache.org/jira/browse/AMQCPP-388
> Project: ActiveMQ C++ Client
> Issue Type: Bug
> Components: Decaf
> Affects Versions: 3.2.3
> Environment: Windows xp service pack 3, ActiveMQ broker 5.3.1, apr
> 1.4.2, apr-util 1.3.9, apr iconv 1.2.1
> Reporter: Helen Huang
> Assignee: Timothy Bish
> Fix For: 3.2.3
>
>
> Our application that uses activemq c++ client lib crashed with the following
> dump:
> ----------------------------------------------------------------------------------------------------------------------
> Thread 87 - System ID 3780
> Function Arg 1 Arg 2 Arg 3 Source
> libapr_1!apr_pvsprintf+8 00000000 0642a188 180eeb94
> activemq_cppu!decaf::lang::Exception::buildMessage+71 0642a188
> 180eeb74 180eee2c
> activemq_cppu!decaf::lang::exceptions::RuntimeException::RuntimeException+4d
> 180efeec 0642a160 00000097
> activemq_cppu!decaf::lang::ThreadProperties::runCallback+125 180eee2c
> 180efee0 00000001
> msvcr80!CatchIt+5c 00000000 00000000 00000000
> LIBAPR_1!APR_PVSPRINTF+8In scotapp.dmp the assembly instruction at
> libapr_1!apr_pvsprintf+8 in C:\scot\dll\libapr-1.dll has caused an access
> violation exception (0xC0000005) when trying to read from memory location
> 0x0000002c on thread 87
> --------------------------------------------------------------------------------------------------------------------
> On the call stack, we saw that following function from class
> decaf::lang::Exception was called:
> void Exception::buildMessage( const char* format, va_list& vargs ) {
> // Allocate buffer with a guess of it's size
> AprPool pool;
> // Allocate a buffer of the specified size.
> char* buffer = apr_pvsprintf( pool.getAprPool(), format, vargs );
> // Guessed size was enough. Assign the string.
> message.assign( buffer, strlen( buffer ) );
> }
> The first parameter passed into apr_pvsprintf was NULL, causing the crash.
> Could you please take a look and see if there is any bug in the activemqcpp
> code that could cause the problem. Thanks!
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