[vtk-developers] VTKSource patch, try #3

[Charl P. Botha]

Dear developers,

Today during a demo this one bit me again on an unpatched VTK
installation.  The this->Updating variable is unlocked far too soon in
vtkSource::UpdateData().  It can thus easily happen that UpdateData() is
called AGAIN whilst the previous invocation is still processing in the
unprotected section (after the current this->Updating = 0).

I would _really_ like to apply this patch, but obviously not without
permission at least one more senior VTK developer, as vtkSource is a
prolific parent. :)

Thanks,
Charl

-- 
charl p. botha http://cpbotha.net/ http://visualisation.tudelft.nl/
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