Hi
Your problem is weird, further I don't understand why you would have to create
yourself a cullvisitor...
Give us the minimum code to reproduce the error please
(and use code section to keep indentation)
Rick Irons wrote:
> Hi all,
>
> I am encountering an issue with a CullVisitor object not being properly
> deleted in version 3.4.0. I am encountering this issue when updating from
> version 3.0.1.
>
> The source of the problem is a failed Referenced to CullVisitor dynamic cast
> that occurs in the code below…
>
> virtual void objectDeleted(void* object)
> {
> osg::Referenced* ref = reinterpret_cast<osg::Referenced*>(object);
> osgUtil::CullVisitor* cv = dynamic_cast<osgUtil::CullVisitor*>(ref);
> OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
> RenderStageMap::iterator itr = _renderStageMap.find(cv);
> if (itr!=_renderStageMap.end())
> {
> _renderStageMap.erase(cv);
> }
> }
>
> The call stack at the time of the failed cast is the following…
>
>
>
> The cv pointer is NULL following the cast. My suspicion is that the dynamic
> cast is failing because we are in the destructor of our own object that
> inherits the OSG CullVisitor object. I tested this suspicion by confirming
> that the same dynamic cast will succeed in application code if done
> immediately before invoking the destructor of our version of the CullVisitor.
> This issue is blocking our update to 3.4.0 since it causes numerous unit test
> failures.
>
> Any suggestions on how to address this issue?
>
> I created the hack below to temporary bypass the problem…
>
> virtual void objectDeleted(void* object)
> {
> osg::Referenced* ref = reinterpret_cast<osg::Referenced*>(object);
> osgUtil::CullVisitor* cv = dynamic_cast<osgUtil::CullVisitor*>(ref);
> OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
> if (cv != NULL)
> {
> RenderStageMap::iterator itr = _renderStageMap.find(cv);
> if (itr!=_renderStageMap.end())
> {
> _renderStageMap.erase(cv);
> }
> }
> else
> {
> for(RenderStageMap::iterator itr = _renderStageMap.begin();
> itr != _renderStageMap.end();
> ++itr)
> {
> osg::Referenced* tmpRef = dynamic_cast<osg::Referenced*>(itr->first);
> if (ref==tmpRef)
> {
> cv = itr->first;
> _renderStageMap.erase(cv);
> break;
> }
> }
> }
> }
>
> Thanks,
> Rick
>
> ------------------
> Post generated by Mail2Forum
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=67211#67211
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