vtkParallelReader.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkParallelReader_h
#define vtkParallelReader_h
 
#include "vtkCommonExecutionModelModule.h" // For export macro
#include "vtkReaderAlgorithm.h"
 
#include <string> // needed for std::string in the interface
 
VTK_ABI_NAMESPACE_BEGIN
struct vtkParallelReaderInternal;
 
class VTKCOMMONEXECUTIONMODEL_EXPORT vtkParallelReader : public vtkReaderAlgorithm
{
public:
  vtkTypeMacro(vtkParallelReader, vtkReaderAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  void AddFileName(VTK_FILEPATH const char* fname);
 
  void ClearFileNames();
 
  int GetNumberOfFileNames() const;
 
  VTK_FILEPATH const char* GetFileName(int i) const;
 
  VTK_FILEPATH const char* GetCurrentFileName() const;
 
 
  int ReadMetaData(vtkInformation* metadata) override;
  int ReadMesh(int piece, int npieces, int nghosts, int timestep, vtkDataObject* output) override;
  int ReadPoints(int piece, int npieces, int nghosts, int timestep, vtkDataObject* output) override;
  int ReadArrays(int piece, int npieces, int nghosts, int timestep, vtkDataObject* output) override;
 
protected:
  vtkParallelReader();
  ~vtkParallelReader() override;
 
  virtual double GetTimeValue(const std::string& fname);
 
  virtual int ReadMesh(
    const std::string& fname, int piece, int npieces, int nghosts, vtkDataObject* output) = 0;
 
  virtual int ReadPoints(
    const std::string& fname, int piece, int npieces, int nghosts, vtkDataObject* output) = 0;
 
  virtual int ReadArrays(
    const std::string& fname, int piece, int npieces, int nghosts, vtkDataObject* output) = 0;
 
  int CurrentFileIndex;
 
private:
  vtkParallelReader(const vtkParallelReader&) = delete;
  void operator=(const vtkParallelReader&) = delete;
 
  vtkParallelReaderInternal* Internal;
};
 
VTK_ABI_NAMESPACE_END
#endif