[Paraview] Using vtcCoProcessor from different threads

[Hermano Lustosa]

Hello

I have a C++ application that uses catalyst.  I am using the class vtkCPProcessor like this (consider that I am using: typedef vtkSmartPointer<vtkCPProcessor> Processor;):


    auto processor = Processor::New();
    processor->Initialize();

    vtkNew<vtkCPPythonScriptPipeline> pipeline;
    pipeline->Initialize(path_to_script);
    processor->AddPipeline(pipeline.GetPointer());

And then, I have in another part of my code this call:


  processorMutex.lock();
  processor->CoProcess(dataDescription);
  processorMutex.unlock();

It works just fine in a single thread, but if I run the code with multiple threads, even though I make sure there is a single instance of the processor and the calls are protected by mutexes the application crash at the
processor->CoProcess(dataDescription) command with some memory error (usually SIGSEGV).

If I use many instances, the app crash when I try to Initialize the new Processor. Thus, I'd like to know if there is a way to safely call CoProcess from many threads?

Thanks



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