Hi Ola, On 27 August 2012 16:31, Ola Nilsson <[email protected]> wrote: > Yes, the ref count is zero but the destructor chain has not yet completed, > by induction it hasn't passed ~TerrainTile. (If it had unregisterTile would > have been called and completed.) Right?
Thinking about your explanation, I think you are correct,the Terrain::unregisterTile won't be allowed to complete because the Terrain::traverse() will be holding the Terrain::_mutex so the destructor won't be able to finish and have the memory fully deleted and be able to be recycled. > In this situation memory is not yet recycled and the object's parents data > (Referenced) should be safe to access and even manipulate. Right? Safe... possible, it still doesn't feel robust though. > Btw. the new code passes my modified osgterrain test, which of course > doesn't prove anything... It's an encouraging start though. I do wonder if in your changes there is a need to take a ref_ptr<> and then check for a referenceCount() of 1, as if the ref count is zero to start with then just checking against 0 without the ref_ptr<> should be sufficient a test to see if the object has been deleted. Robert. _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
