itkResourceProbe.h

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/*=========================================================================
 *
 *  Copyright Insight Software Consortium
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0.txt
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *=========================================================================*/
#ifndef __itkResourceProbe_h
#define __itkResourceProbe_h

#include "itkMacro.h"
#include "itkIntTypes.h"
#include <string>

namespace itk
{
template< class ValueType, class MeanType >
class ITK_EXPORT ResourceProbe
{
public:

  typedef  SizeValueType  CountType;

public:

  ResourceProbe(const std::string & type, const std::string & unit);

  virtual ~ResourceProbe();

  std::string GetType(void) const;

  std::string GetUnit(void) const;

  void        Start(void);

  void        Stop(void);

  CountType   GetNumberOfStarts(void) const;

  CountType   GetNumberOfStops(void) const;

  virtual ValueType   GetInstantValue(void) const = 0;

  ValueType    GetTotal(void) const;

  MeanType    GetMean(void) const;

private:

  ValueType m_StartValue;
  ValueType m_TotalValue;

  CountType m_NumberOfStarts;
  CountType m_NumberOfStops;

  std::string m_TypeString;
  std::string m_UnitString;
};
} // end namespace itk

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkResourceProbe.hxx"
#endif

#endif //__itkResourceProbe_h