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/*=========================================================================
Program: Visualization Toolkit
Module: vtkPainterCommunicator.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
// .NAME vtkPainterCommunicator -- A communicator containing only
// ranks that will execute a painter chain.
//
// .SECTION Description
// A communicator that can safely be used inside a painter.
// A simple container holding a handle to an MPI communicator.
// This API is sufficient to allow for control flow with/without
// MPI. The parallel parts of the code should use the derived
// class vtkPPainterCommunicator.
#ifndef vtkPainterCommunicator_h
#define vtkPainterCommunicator_h
#include "vtkRenderingLICOpenGL2Module.h" // for export macro
class VTKRENDERINGLICOPENGL2_EXPORT vtkPainterCommunicator
{
public:
vtkPainterCommunicator(){}
virtual ~vtkPainterCommunicator(){}
// Description:
// Copy and assignment operators. Both use Copy internally
// and do take ownership.
vtkPainterCommunicator(const vtkPainterCommunicator &other)
{ this->Copy(&other, false); }
vtkPainterCommunicator &operator=(const vtkPainterCommunicator &other)
{ this->Copy(&other, false); return *this; }
// Description:
// Copy the communicator, the flag indicates if ownership
// should be assumed. The owner is responsible for free'ing
// the communicator.
virtual void Copy(const vtkPainterCommunicator *, bool){}
// Description:
// Duplicate the communicator.
virtual void Duplicate(const vtkPainterCommunicator *){}
// Description:
// Querry MPI about the communicator.
virtual int GetRank(){ return 0; }
virtual int GetSize(){ return 1; }
virtual bool GetIsNull(){ return false; }
// Description:
// Querry MPI about the world communicator.
virtual int GetWorldRank(){ return 0; }
virtual int GetWorldSize(){ return 1; }
// Description:
// Querry MPI about its state.
virtual bool GetMPIInitialized(){ return false; }
virtual bool GetMPIFinalized(){ return true; }
};
#endif
// VTK-HeaderTest-Exclude: vtkPainterCommunicator.h
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