[vtkusers] Autorelease pool issue with vtkCocoaRenderWindowInteractor

David Cole david.cole at kitware.com
Fri Feb 22 12:55:29 EST 2008

Look at the code around line 222 of

If you are getting that message, then the vtkEarlyCocoaSetup constructor is
probably not being called. Maybe __OBJC_GC__ is defined, but there is a need
for an autorelease pool anyhow....?

Some of the RogueResearch mac VTK dashboards use this cache entry...
...to turn on objective C++ garbage collection.

Are you doing that in some fashion for your build? Or is __OBJC_GC__ defined
for your build somehow?


On 2/21/08, Corrie Allen <corrieallen at gmail.com> wrote:
> Hi VTK gurus,
> I'm getting this snippet of output in my log window during the run of a
> little program I've written.
> "
> Gonna initialize interactor next!
> And now starting interactor
> 2008-02-21 20:03:26.496 spawar2[1365:10b] *** _NSAutoreleaseNoPool():
> Object 0x13e22460 of class vtkCocoaServer autoreleased with no pool in place
> - just leaking
> Stack: (0x90a3012f 0x9093cec2 0xda040 0xdaa3c 0x702b 0x6176)
> "
> The c++ code where this is occurring is
> ....
>    cout<<"Gonna initialize interactor next!"<<endl;
>   iren->Initialize();
>   cout<< "And now starting interactor"<< endl;
>   iren->Start(); //where iren is an instance of
> vtkCocoaRenderWindowInteractor
> ....
> The 3-D object is rendered fine after the log note appears and the
> interactor works well. The log output,though, is worrisome.  Where can I
> begin to look for the cause of this: just leaking with no pool in place
> seems bad.
> Corrie
> MacBook Pro, OSX 10.5.1, CMake 2.4.8, VTK 5.1,
> i686-apple-darwin9-gcc-4.0.1 (GCC) 4.0.1 (Apple Inc. build 5465)
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