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/*=========================================================================
Program: The OpenIGTLink Library
Language: C++
Web page: http://openigtlink.org/
Copyright (c) Insight Software Consortium. All rights reserved.
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 __igtlTimeStamp_h
#define __igtlTimeStamp_h
#include "igtlMacro.h"
#include "igtlObject.h"
#include "igtlObjectFactory.h"
#include "igtlTypes.h"
#if defined(WIN32) || defined(_WIN32)
#include <ctime>
#endif
namespace igtl
{
class IGTLCommon_EXPORT TimeStamp : public Object
{
public:
typedef TimeStamp Self;
typedef Object Superclass;
typedef SmartPointer< Self > Pointer;
typedef SmartPointer< const Self > ConstPointer;
igtlTypeMacro(TimeStamp, Object);
igtlNewMacro(Self);
/// Gets the frequency of a clock.
igtlGetConstMacro(Frequency, igtlUint32);
/// Gets the second part of the time stamp.
igtlGetConstMacro(Second, igtlUint32);
/// Gets the fraction of second part of the time stamp.
igtlGetConstMacro(Nanosecond, igtlUint32);
/// Gets the current time from the system's clock and save it as a time stamp.
void GetTime();
/// Sets the time by double floating-point value.
void SetTime(double tm);
/// Sets the time by second and nanosecond
void SetTime(igtlUint32 second, igtlUint32 nanosecond);
/// Sets the time by using 64-bit fixed-point expression used in OpenIGTLink.
void SetTime(igtlUint64 tm);
/// Sets the time using the total number of nano-seconds since the start of time (Unix Epoch = 1 Jan 1970).
/// Note: This is deliberately different to SetTime();
void SetTimeInNanoseconds(igtlUint64 tm);
/// Gets the time stamp. Returns a double floating-point value.
double GetTimeStamp();
/// Gets the time stamp. The second and nanosecond parts are stored in 'second' and 'nanosecond'
void GetTimeStamp(igtlUint32* second, igtlUint32* nanosecond);
/// Gets the time stamp. Returns a 64-bit fixed-point expression used in OpenIGTLink.
igtlUint64 GetTimeStampUint64();
/// Gets the time in nano-seconds since the start of time (Unix Epoch = 1 Jan 1970).
/// Note: This is deliberately different to GetTimeStampUint64();
igtlUint64 GetTimeStampInNanoseconds() const;
protected:
/** constructor */
TimeStamp();
/** destructor */
virtual ~TimeStamp();
/** Print the object information in a stream. */
virtual void PrintSelf( std::ostream& os) const;
private:
/// Clock frequency (Hz)
igtlInt32 m_Frequency;
/// Second part of the time relative to 00:00:00 January 1, 1970 UTC
igtlInt32 m_Second;
/// Nano-second part of the time stamp
igtlInt32 m_Nanosecond;
#if defined(WIN32) || defined(_WIN32)
//typedef double TimeStampType;
//typedef double FrequencyType;
//
//FrequencyType m_WinFrequency;
//TimeStampType m_WinDifference;
//TimeStampType m_WinOrigin;
time_t m_WinTimeOrigin;
clock_t m_WinClockOrigin;
#endif
};
} // end of namespace igtl
#endif // __igtlTimeStamp_h
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