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/*=========================================================================
Program: Image Guided Surgery Software Toolkit
Module: $RCSfile: igstkRealTimeClock.h,v $
Language: C++
Date: $Date: 2008-02-11 01:41:51 $
Version: $Revision: 1.5 $
Copyright (c) ISC Insight Software Consortium. All rights reserved.
See IGSTKCopyright.txt or http://www.igstk.org/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 notices for more information.
=========================================================================*/
#ifndef __igstkRealTimeClock_h
#define __igstkRealTimeClock_h
#include "itkIndent.h"
namespace igstk
{
/** \class RealTimeClock
* \brief The RealTimeClock provides a timestamp from a real-time clock
*
* This class represents a real-time clock object
* and provides a timestamp in platform-independent format.
*
* \author Hee-Su Kim, Compute Science Dept. Kyungpook National University,
Copyright (c) ISC Insight Software Consortium. All rights reserved.
*/
class RealTimeClock
{
public:
/** Define the type for the timestamp */
typedef double TimeStampType;
/** Returns a timestamp in milliseconds e.g. 52.341243 milliseconds */
static TimeStampType GetTimeStamp();
/** Initialize internal variables on the Clock service.
* This method must be called at the begining of every
* IGSTK application. */
static void Initialize();
/** Print the object */
static void Print(std::ostream& os, itk::Indent indent=0);
/** Define the type for the frequency of the clock */
typedef double FrequencyType;
protected:
/** constructor */
RealTimeClock();
/** destructor */
virtual ~RealTimeClock();
static void PrintSelf( std::ostream& os, itk::Indent indent );
private:
static FrequencyType m_Frequency;
static TimeStampType m_Difference;
static TimeStampType m_Origin;
};
} // end of namespace itk
#endif // __itkRealTimeClock_h
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