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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-FileCopyrightText: Copyright (c) Sandia Corporation
// SPDX-License-Identifier: BSD-3-Clause
/**
* @class vtkPChacoReader
* @brief Read Chaco files
*
* vtkPChacoReader is a unstructured grid source object that reads
* Chaco files. The file is read by process 0 and converted into
* a vtkUnstructuredGrid. The vtkDistributedDataFilter is invoked
* to divide the grid among the processes.
*/
#ifndef vtkPChacoReader_h
#define vtkPChacoReader_h
#include "vtkChacoReader.h"
#include "vtkIOParallelModule.h" // For export macro
VTK_ABI_NAMESPACE_BEGIN
class vtkTimerLog;
class vtkMultiProcessController;
class VTKIOPARALLEL_EXPORT vtkPChacoReader : public vtkChacoReader
{
public:
static vtkPChacoReader* New();
vtkTypeMacro(vtkPChacoReader, vtkChacoReader);
void PrintSelf(ostream& os, vtkIndent indent) override;
/**
* Set/Get the communicator object (we'll use global World controller
* if you don't set a different one).
*/
void SetController(vtkMultiProcessController* c);
vtkGetObjectMacro(Controller, vtkMultiProcessController);
protected:
vtkPChacoReader();
~vtkPChacoReader() override;
int RequestInformation(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
private:
vtkPChacoReader(const vtkPChacoReader&) = delete;
void operator=(const vtkPChacoReader&) = delete;
void SetUpEmptyGrid(vtkUnstructuredGrid* output);
int DivideCells(vtkMultiProcessController* contr, vtkUnstructuredGrid* output, int source);
int SendGrid(vtkMultiProcessController* c, int to, vtkUnstructuredGrid* grid);
vtkUnstructuredGrid* GetGrid(vtkMultiProcessController* c, int from);
vtkUnstructuredGrid* SubGrid(vtkUnstructuredGrid* ug, vtkIdType from, vtkIdType to);
char* MarshallDataSet(vtkUnstructuredGrid* extractedGrid, vtkIdType& len);
vtkUnstructuredGrid* UnMarshallDataSet(char* buf, vtkIdType size);
int NumProcesses;
int MyId;
vtkMultiProcessController* Controller;
};
VTK_ABI_NAMESPACE_END
#endif
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