vtkMultiProcessControllerHelper.h

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// ----------------------------------------------------------------------------
// -                        CloudViewer: www.cloudViewer.org                  -
// ----------------------------------------------------------------------------
// Copyright (c) 2018-2024 www.cloudViewer.org
// SPDX-License-Identifier: MIT
// ----------------------------------------------------------------------------
 
#pragma once
 
#include <vector>  // needed for std::vector
 
#include "qPCL.h"  // needed for export macro
#include "vtkObject.h"
#include "vtkSmartPointer.h"  // needed for vtkSmartPointer.
 
class vtkDataObject;
class vtkMultiProcessController;
class vtkMultiProcessStream;
 
class QPCL_ENGINE_LIB_API vtkMultiProcessControllerHelper : public vtkObject {
public:
    static vtkMultiProcessControllerHelper* New();
    vtkTypeMacro(vtkMultiProcessControllerHelper, vtkObject);
    void PrintSelf(ostream& os, vtkIndent indent) override;
 
    static int ReduceToAll(vtkMultiProcessController* controller,
                           vtkMultiProcessStream& data,
                           void (*operation)(vtkMultiProcessStream& A,
                                             vtkMultiProcessStream& B),
                           int tag);
 
    static vtkDataObject* MergePieces(vtkDataObject** pieces,
                                      unsigned int num_pieces);
 
    static bool MergePieces(std::vector<vtkSmartPointer<vtkDataObject>>& pieces,
                            vtkDataObject* result);
 
protected:
    vtkMultiProcessControllerHelper();
    ~vtkMultiProcessControllerHelper() override;
 
private:
    vtkMultiProcessControllerHelper(const vtkMultiProcessControllerHelper&) =
            delete;
    void operator=(const vtkMultiProcessControllerHelper&) = delete;
};
 
// VTK-HeaderTest-Exclude: vtkMultiProcessControllerHelper.h