Hi Alex,
The bug is very unlikely to be related directly to the event handlers,
please check if that are any threads running on the viewer, if there
are then you have to stop them before removing anything from the
viewer. Note, viewer.stopThreading(); is what you'll need to call
before you do removeView.
Robert.
On Mon, Jun 23, 2008 at 2:57 PM, amalric alexandre
<[EMAIL PROTECTED]> wrote:
> Hi Robert,
>
> what seems strange to me is that I add other event handler like for example
> a custom stats handler or a osgGA::StateSetManipulator wich are derived from
> the same class as the LODScaleHandler (ie: osgGA::GUIEventHandler). And with
> those 2 others event handler everything is working fine, it only crashes if
> I add the Lod handler.
>
> I agree with you that this class is not very complicated but I do not
> understand why this one fails to unref.
>
> I try to track down the bug but I'm not sure it's on my application side,
> I'm unable to find the difference between a simple LODScaleHandler and a
> simple StatsHandler for example.
>
> Kind regards,
>
> 2008/6/23 Robert Osfield <[EMAIL PROTECTED]>:
>>
>> Hi Alex,
>>
>> The LODScaleHandler looks prefectly correct, and given how simple this
>> event handler is I very much doubt the the problems stems from here.
>>
>> Could something else be corrupting the pointer? Could it be that you
>> are deleting parts of the viewer while other threads are still using
>> it?
>>
>> Robert.
>>
>> On Mon, Jun 23, 2008 at 2:30 PM, amalric alexandre
>> <[EMAIL PROTECTED]> wrote:
>> > Hi osg-users,
>> >
>> > I've noticed something strange in my app, I have a composite viewer with
>> > multiple view that I can add or remove at run-time. When I do not use a
>> > LODScaleHandler everything works fine when I remove my views from
>> > composite
>> > viewer.
>> >
>> > But when I use a LODScaleHandler as :
>> > rpView->addEventHandler(new osgViewer::LODScaleHandler());
>> >
>> > My application crashes when I remove a view from composite viewer with
>> > current stack:
>> >
>> >> osg38-osgd.dll!osg::Referenced::unref() Ligne 155 + 0x23 octets C++
>> >
>> > osg38-osgViewerd.dll!osg::ref_ptr<osgGA::GUIEventHandler>::~ref_ptr<osgGA::GUIEventHandler>()
>> > Ligne 30 + 0x33 octets C++
>> >
>> > osg38-osgViewerd.dll!std::_List_nod<osg::ref_ptr<osgGA::GUIEventHandler>,std::allocator<osg::ref_ptr<osgGA::GUIEventHandler>
>> >> >::_Node::~_Node() + 0x19 octets C++
>> >
>> > osg38-osgViewerd.dll!std::_List_nod<osg::ref_ptr<osgGA::GUIEventHandler>,std::allocator<osg::ref_ptr<osgGA::GUIEventHandler>
>> >> >::_Node::`scalar deleting destructor'() + 0x16 octets C++
>> >
>> > osg38-osgViewerd.dll!std::_Destroy<std::_List_nod<osg::ref_ptr<osgGA::GUIEventHandler>,std::allocator<osg::ref_ptr<osgGA::GUIEventHandler>
>> >>
>>
>> >> >>::_Node>(std::_List_nod<osg::ref_ptr<osgGA::GUIEventHandler>,std::allocator<osg::ref_ptr<osgGA::GUIEventHandler>
>> >> >::_Node * _Ptr=0x032ef1c8) Ligne 61 C++
>> >
>> > osg38-osgViewerd.dll!std::allocator<std::_List_nod<osg::ref_ptr<osgGA::GUIEventHandler>,std::allocator<osg::ref_ptr<osgGA::GUIEventHandler>
>> >>
>>
>> >> >>::_Node>::destroy(std::_List_nod<osg::ref_ptr<osgGA::GUIEventHandler>,std::allocator<osg::ref_ptr<osgGA::GUIEventHandler>
>> >> >::_Node * _Ptr=0x032ef1c8) Ligne 161 + 0x9 octets C++
>> >
>> > osg38-osgViewerd.dll!std::list<osg::ref_ptr<osgGA::GUIEventHandler>,std::allocator<osg::ref_ptr<osgGA::GUIEventHandler>
>> >> >::clear() Ligne 827 C++
>> >
>> > osg38-osgViewerd.dll!std::list<osg::ref_ptr<osgGA::GUIEventHandler>,std::allocator<osg::ref_ptr<osgGA::GUIEventHandler>
>> >> >::_Tidy() Ligne 1185 C++
>> >
>> > osg38-osgViewerd.dll!std::list<osg::ref_ptr<osgGA::GUIEventHandler>,std::allocator<osg::ref_ptr<osgGA::GUIEventHandler>
>> >>
>>
>> >> >>::~list<osg::ref_ptr<osgGA::GUIEventHandler>,std::allocator<osg::ref_ptr<osgGA::GUIEventHandler>
>> >> >() Ligne 516 C++
>> > osg38-osgViewerd.dll!osgViewer::View::~View() Ligne 170 + 0x2d octets
>> > C++
>> > osg38-osgViewerd.dll!osgViewer::View::`vbase destructor'() + 0x17
>> > octets C++
>> > Px-Viewer.exe!osgViewer::View::`scalar deleting destructor'() + 0x2e
>> > octets C++
>> > osg38-osgd.dll!osg::Referenced::unref() Ligne 155 + 0x23 octets C++
>> >
>> > osg38-osgViewerd.dll!osg::ref_ptr<osgViewer::View>::~ref_ptr<osgViewer::View>()
>> > Ligne 30 + 0x33 octets C++
>> > osg38-osgViewerd.dll!osg::ref_ptr<osgViewer::View>::`scalar deleting
>> > destructor'() + 0x16 octets C++
>> > osg38-osgViewerd.dll!std::_Destroy<osg::ref_ptr<osgViewer::View>
>> >>(osg::ref_ptr<osgViewer::View> * _Ptr=0x032d47f8) Ligne 61 C++
>> > osg38-osgViewerd.dll!std::allocator<osg::ref_ptr<osgViewer::View>
>> >>::destroy(osg::ref_ptr<osgViewer::View> * _Ptr=0x032d47f8) Ligne 161 +
>> >> 0x9
>> > octets C++
>> >
>> > osg38-osgViewerd.dll!std::_Destroy_range<osg::ref_ptr<osgViewer::View>,std::allocator<osg::ref_ptr<osgViewer::View>
>> >> >(osg::ref_ptr<osgViewer::View> * _First=0x032d47f8,
>> > osg::ref_ptr<osgViewer::View> * _Last=0x032d47fc,
>> > std::allocator<osg::ref_ptr<osgViewer::View> > & _Al={...},
>> > std::_Nonscalar_ptr_iterator_tag __formal={...}) Ligne 235 + 0xc octets
>> > C++
>> >
>> > osg38-osgViewerd.dll!std::_Destroy_range<osg::ref_ptr<osgViewer::View>,std::allocator<osg::ref_ptr<osgViewer::View>
>> >> >(osg::ref_ptr<osgViewer::View> * _First=0x032d47f8,
>> > osg::ref_ptr<osgViewer::View> * _Last=0x032d47fc,
>> > std::allocator<osg::ref_ptr<osgViewer::View> > & _Al={...}) Ligne 226 +
>> > 0x28 octets C++
>> >
>> > osg38-osgViewerd.dll!std::vector<osg::ref_ptr<osgViewer::View>,std::allocator<osg::ref_ptr<osgViewer::View>
>> >> >::_Destroy(osg::ref_ptr<osgViewer::View> * _First=0x032d47f8,
>> > osg::ref_ptr<osgViewer::View> * _Last=0x032d47fc) Ligne 1083 + 0x14
>> > octets C++
>> >
>> > osg38-osgViewerd.dll!std::vector<osg::ref_ptr<osgViewer::View>,std::allocator<osg::ref_ptr<osgViewer::View>
>> >>
>>
>> >> >>::erase(std::_Vector_iterator<osg::ref_ptr<osgViewer::View>,std::allocator<osg::ref_ptr<osgViewer::View>
>> >> > _Where={_ptr=0x032cee88 }) Ligne 989 C++
>> >
>> > osg38-osgViewerd.dll!osgViewer::CompositeViewer::removeView(osgViewer::View
>> > * view=0x032cee88) Ligne 147 + 0x23 octets C++
>> >
>> >
>> > --
>> > Alexandre AMALRIC Ingénieur R&D
>> > ===================================
>> > PIXXIM S.A. 73E, rue Perrin-Solliers 13006 Marseille
>> > http://www.pixxim.fr
>> >
>> >
>> >
>> >
>> > _______________________________________________
>> > osg-users mailing list
>> > [email protected]
>> >
>> > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
>> >
>> >
>> _______________________________________________
>> osg-users mailing list
>> [email protected]
>> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
>
>
>
> --
> Alexandre AMALRIC Ingénieur R&D
> ===================================
> PIXXIM S.A. 73E, rue Perrin-Solliers 13006 Marseille
> http://www.pixxim.fr
> _______________________________________________
> osg-users mailing list
> [email protected]
> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
>
>
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