Hi Aron,
On Mon, 2005-06-20 at 14:39 -0500, Aron Bierbaum wrote:
> I am trying to use RemoteAspects to share information between two
> machines but get the following when exiting the application on the
> remote server side:
>
> First-chance exception at 0x009d18c2 (OSGSystemD.dll) in
> RemoteAspect.exe: 0xC0000005: Access violation reading location 0x38f63434.
> Unhandled exception at 0x009d18c2 (OSGSystemD.dll) in RemoteAspect.exe:
> 0xC0000005: Access violation reading location 0x38f63434.
>
> When looking at the stack trace it is obvious that the object id of
> 3452816845 is incorrect. Does anyone have an a idea how I can track down
> where this invalid id is coming from? I have tried not calling
> osgExit(), but this does not seem to help the situation because Windows
> still trys to clean up the data.
that's a pretty weird crash, as that is during cleanup of the
prototypes, which are never rendered and therefore should never get a
GLId. The GLIds are not explicitly initialized, but you can force it by
applying the patch below. I've also added a check to the Window to
handle this a little more gracefully, but in general this shouldn't
happen.
HIH
Dirk
Here's the patch:
Index: State/OSGProgramChunkBase.cpp
===================================================================
RCS
file: /cvsroot/opensg/OpenSG/Source/System/State/OSGProgramChunkBase.cpp,v
retrieving revision 1.5
diff -u -3 -p -r1.5 OSGProgramChunkBase.cpp
--- State/OSGProgramChunkBase.cpp 26 May 2005 22:22:46 -0000
1.5
+++ State/OSGProgramChunkBase.cpp 20 Jun 2005 20:25:09 -0000
@@ -169,7 +169,7 @@ ProgramChunkBase::ProgramChunkBase(void)
_sfProgram (),
_mfParamValues (),
_mfParamNames (),
- _sfGLId (),
+ _sfGLId (UInt32(0)),
Inherited()
{
}
Index: State/OSGProgramChunk.fcd
===================================================================
RCS
file: /cvsroot/opensg/OpenSG/Source/System/State/OSGProgramChunk.fcd,v
retrieving revision 1.1
diff -u -3 -p -r1.1 OSGProgramChunk.fcd
--- State/OSGProgramChunk.fcd 2 Mar 2003 22:04:16 -0000 1.1
+++ State/OSGProgramChunk.fcd 20 Jun 2005 20:25:09 -0000
@@ -44,6 +44,7 @@ The ProgramChunk is the base class for g
cardinality="single"
visibility="internal"
access="protected"
+ defaultValue="0"
>
The OpenGL ID of the program.
</Field>
Index: Window/OSGWindow.cpp
===================================================================
RCS file: /cvsroot/opensg/OpenSG/Source/System/Window/OSGWindow.cpp,v
retrieving revision 1.43
diff -u -3 -p -r1.43 OSGWindow.cpp
--- Window/OSGWindow.cpp 31 May 2005 22:08:10 -0000 1.43
+++ Window/OSGWindow.cpp 20 Jun 2005 20:25:09 -0000
@@ -820,10 +820,20 @@ void OSG::Window::doInitRegisterGLObject
*/
void OSG::Window::destroyGLObject(UInt32 id, UInt32 num)
{
std::vector<WindowPtr>::iterator it;
for(it = _allWindows.begin(); it != _allWindows.end(); ++it)
{
+#ifdef OSG_DEBUG
+ if(id + num > (*it)->_mfGlObjectLastReinitialize.size())
+ {
+ FWARNING(("Window::destroyGLObject:: id %d + num %d exceed"
+ "registered objects size %d!\n", id, num,
+ (*it)->_mfGlObjectLastReinitialize.size()));
+ return;
+ }
+#endif
// has the object been used in this context at all?
if((*it)->getGlObjectLastReinitialize()[id] != 0)
(*it)->_glObjectDestroyList.push_back(DestroyEntry
(id,num));
-------------------------------------------------------
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