/usr/include/vtk-6.3/vtkMultiTimeStepAlgorithm.h is in libvtk6-dev 6.3.0+dfsg1-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 | /*=========================================================================
  Program:   Visualization Toolkit
  Module:    vtkMultiTimeStepAlgorithm.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 vtkMultiTimeStepAlgorithm - Superclass for algorithms that would like to
//  make multiple time requests
// .SECTION Description
// This class can be inherited by any algorithm that wishes to make multiple
// time requests upstream.
// The child class uses UPDATE_TIME_STEPS to make the time requests and
// use set of time-stamped data objects are stored in time order
// in a vtkMultiBlockDataSet object.
#ifndef vtkMultiTimeStepAlgorithm_h
#define vtkMultiTimeStepAlgorithm_h
#include "vtkCommonExecutionModelModule.h" // For export macro
#include "vtkAlgorithm.h"
#include "vtkSmartPointer.h" //needed for a private variable
#include <vector> //needed for a private variable
#include "vtkDataObject.h" // needed for the smart pointer
class vtkInformationDoubleVectorKey;
class vtkMultiBlockDataSet;
class VTKCOMMONEXECUTIONMODEL_EXPORT vtkMultiTimeStepAlgorithm : public vtkAlgorithm
{
public:
  static vtkMultiTimeStepAlgorithm *New();
  vtkTypeMacro(vtkMultiTimeStepAlgorithm,vtkAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent);
protected:
  vtkMultiTimeStepAlgorithm();
  ~vtkMultiTimeStepAlgorithm()
  {
  };
  // Description:
  // This is filled by the child class to request multiple time steps
  static vtkInformationDoubleVectorKey* UPDATE_TIME_STEPS();
  // Description:
  // This is called by the superclass.
  // This is the method you should override.
  virtual int RequestDataObject(vtkInformation*, vtkInformationVector**,  vtkInformationVector*)
  {
    return 1;
  };
  // Description:
  // This is called by the superclass.
  // This is the method you should override.
  virtual int RequestInformation(vtkInformation*, vtkInformationVector**, vtkInformationVector*)
  {
    return 1;
  };
  // Description:
  // This is called by the superclass.
  // This is the method you should override.
  virtual int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*)
  {
    return 1;
  }
  // Description:
  // This is called by the superclass.
  // This is the method you should override.
  virtual int RequestUpdateExtent(vtkInformation*, vtkInformationVector**, vtkInformationVector*)
  {
    return 1;
  }
  int ProcessRequest(vtkInformation*, vtkInformationVector**, vtkInformationVector*);
  bool CacheData;
  unsigned int NumberOfCacheEntries;
private:
  vtkMultiTimeStepAlgorithm(const vtkMultiTimeStepAlgorithm&);  // Not implemented.
  void operator=(const vtkMultiTimeStepAlgorithm&);  // Not implemented.
  vtkSmartPointer<vtkMultiBlockDataSet> MDataSet; //stores all the temporal data sets
  int RequestUpdateIndex; //keep track of the time looping index
  std::vector<double> UpdateTimeSteps;  //store the requested time steps
  bool IsInCache(double time, size_t& idx);
  struct TimeCache
  {
  TimeCache(double time, vtkDataObject* data) : TimeValue(time), Data(data)
  {
  }
  double TimeValue;
  vtkSmartPointer<vtkDataObject> Data;
  };
  std::vector<TimeCache> Cache;
};
#endif
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