Method GetInputInformation

Common/ExecutionModel/vtkExecutive.cxx:62–101

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//------------------------------------------------------------------------------
vtkInformationVector** vtkExecutiveInternals::GetInputInformation(int newNumberOfPorts)
{
  // Adjust the number of vectors.
  int oldNumberOfPorts = static_cast<int>(this->InputInformation.size());
  if (newNumberOfPorts > oldNumberOfPorts)
  {
    // Create new vectors.
    this->InputInformation.resize(newNumberOfPorts, nullptr);
    for (int i = oldNumberOfPorts; i < newNumberOfPorts; ++i)
    {
      this->InputInformation[i] = vtkInformationVector::New();
    }
  }
  else if (newNumberOfPorts < oldNumberOfPorts)
  {
    // Delete old vectors.
    for (int i = newNumberOfPorts; i < oldNumberOfPorts; ++i)
    {
      if (vtkInformationVector* v = this->InputInformation[i])
      {
        // Set the pointer to nullptr first to avoid reporting of the
        // entry if deleting the vector causes a garbage collection
        // reference walk.
        this->InputInformation[i] = nullptr;
        v->Delete();
      }
    }
    this->InputInformation.resize(newNumberOfPorts);
  }

  // Return the array of information vector pointers.
  if (newNumberOfPorts > 0)
  {
    return this->InputInformation.data();
  }
  else
  {
    return nullptr;
  }
}

//------------------------------------------------------------------------------
vtkExecutive::vtkExecutive()