Hi,
I didn't understand exactly what you need, but another way to be
notified when an object is about to being deleted is to derive your own
class from osg::Observer, and make it point to the node you're
interested in.
At deletion time the method "virtual void objectDeleted(void*)" will be
called and you can do whatever you need.
This is used in observer_ptr class.
Cheers,
Ricky
On 24/06/2009 22.24, Ismail Pazarbasi wrote:
On Wed, Jun 24, 2009 at 10:12 PM, Judd Tracy<[email protected]> wrote:
You could always attach a create your own DeleteHandler and attach it to the
node, but I don't know if that will help you other then letting you know it
is going to be deleted.
On Wed, Jun 24, 2009 at 11:58 AM,<[email protected]> wrote:
What is the easiest way to determine if a particular node is being deleted
from memory? I have a relatively complex scene and part of the scene needs
to be deleted and reconstructed at times. I'm concerned there might be a
memory leak and that some of my nodes are not being freed because we aren't
using ref_ptr where we need them.
Paul P.
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Did you try:
template<typename T>
struct MyObj : T
{
~MyClass()
{
// handle deletion; output something to stderr, console, debugger,
file, etc.
}
};
{
osg::ref_ptr<MyObj<osg::Group> > pobj = new osg::Group;
// use pobj
} // should call destructor here.
Instead of a template class, you may derive directly from
osg::Referenced or osg::Object as the most common base types, but then
you lose full functionality of actual type and need to cast.
I didn't test the code (have no osg neither a compiler on my Omnia
PDA), but I'd expect that to work regardless of project, as long as
base type has a virtual destructor and gets deleted (in case delete is
applied onto pointer to base type, which is the case in osg).
Ismail
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