vlTime.h

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/*******************************************************************************
** Copyright (c) 1992-2010 VT MAK
** All rights reserved.
*******************************************************************************/
#pragma once

#include "vlMachineTypes.h"

#ifdef DtUSE_UTILITIES_NAMESPACE
namespace DtUSE_UTILITIES_NAMESPACE
{
#endif


typedef DtReal DtTime;

class DT_DLL_VLUTIL DtClock
{
public:

   DtClock();

   DtClock(const DtClock &orig);

   DtClock & operator=(const DtClock &orig);

   virtual ~DtClock();

   virtual void init();

   virtual DtTime simTime() const;

   virtual void setSimTime(DtTime NewSimTime);

   virtual bool isSimTimeSet() const;

   virtual DtTime elapsedRealTime() const;

   virtual DtTime approximateElapsedRealTime() const;

   virtual bool useSimTimeForApproxRealTime() const;

   virtual void setUseSimTimeForApproxRealTime();
   virtual void clearUseSimTimeForApproxRealTime();

   virtual DtTime absRealTime() const; 

public:

   static const double hour2sec;
   static const double sec2hour;

protected:

   DtTime myInitialTime;

   DtTime mySimTime;

   DtTime myApproxElapsedRealTime;

   bool mySimTimeSet;

   bool myUseSimTimeForApproxRealTime;

#ifdef _WIN32
   int myUsePerfCounter;
   double myCounterAtInitialTime;
   double myCounterFreq;
#endif
};



#define DtHour2Sec DtClock::hour2sec
#define DtSec2Hour DtClock::sec2hour


DT_DLL_VLUTIL void DtTimeInit();
DT_DLL_VLUTIL DtTime DtGetSimTime();
DT_DLL_VLUTIL void DtSetSimTime(DtTime NewSimTime);
DT_DLL_VLUTIL void DtIsSimTimeSet();
DT_DLL_VLUTIL DtTime DtGetElapsedRealTime();
DT_DLL_VLUTIL DtTime DtGetApproximateElapsedRealTime();

DT_DLL_VLUTIL DtTime DtAbsRealTime();

#ifdef DtUSE_UTILITIES_NAMESPACE
} 
#endif