Timer.h

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//==============================================================================================
//  FILENAME    :   Timer.h
//  AUTHOR      :   vovechkin
//  CREATION    :   2004-06-14
//  Copyright (C) MicroStrategy Incorporated 2004
//  All Rights Reserved
//==============================================================================================
#ifndef MBase_Timer_h
#define MBase_Timer_h

#include "Base.h"
#include "ReturnString.h"

#include "../Defines/BasicTypes.h"

namespace MBase
{
    class DLL_BASE_EXIM Timer
    {
    public:

        Timer();

        //akini 08-17-2006
        void ResetTimer();

        unsigned Int64 GetAgeInMicroseconds() const;

        inline unsigned Int64 GetAgeInMilliseconds() const
        {
            return GetAgeInMicroseconds() / 1000;
        }

        inline unsigned Int64 GetAgeInSeconds() const
        {
            return GetAgeInMicroseconds() / 1000000;
        }

    private:

#ifdef WIN32
        unsigned Int64 mStartTimeInPerformanceCounterUnits;
#else
        unsigned Int64 mStartTimeInMicroseconds;
#endif
    };

    class DLL_BASE_EXIM TotalTimer
    {
    public:

        class DLL_BASE_EXIM Timer
        {
        public:

            Timer(TotalTimer& irTotalTimer);

            ~Timer() throw()
            {
                if (mpTotalTimer != NULL)
                {
                    Stop();
                }
            }

            void Stop() throw();

        private:

            TotalTimer* mpTotalTimer;
#ifdef WIN32
            unsigned Int64 mStartTimeInPerformanceCounterUnits;
#else
            unsigned Int64 mStartTimeInMicroseconds;
#endif
        };

        class DLL_BASE_EXIM Timer2
        {
        public:

            Timer2(TotalTimer& irTotalTimer1, TotalTimer& irTotalTimer2);
            ~Timer2() throw()
            {
                if (mpTotalTimer1 != NULL)
                {
                    Stop();
                }
            }

            void Stop() throw();

        private:

            TotalTimer* mpTotalTimer1;
            TotalTimer* mpTotalTimer2;
#ifdef WIN32
            unsigned Int64 mStartTimeInPerformanceCounterUnits;
#else
            unsigned Int64 mStartTimeInMicroseconds;
#endif
        };

        class DLL_BASE_EXIM Timer3
        {
        public:

            Timer3(TotalTimer& irTotalTimer1, TotalTimer& irTotalTimer2, TotalTimer& irTotalTimer3);
            ~Timer3() throw()
            {
                if (mpTotalTimer1 != NULL)
                {
                    Stop();
                }
            }

            void Stop() throw();

        private:

            TotalTimer* mpTotalTimer1;
            TotalTimer* mpTotalTimer2;
            TotalTimer* mpTotalTimer3;
#ifdef WIN32
            unsigned Int64 mStartTimeInPerformanceCounterUnits;
#else
            unsigned Int64 mStartTimeInMicroseconds;
#endif
        };

    public:

        TotalTimer():
#ifdef WIN32
            mTotalTimeInPerformanceCounterUnits(0),
#else
            mTotalTimeInMicroseconds(0),
#endif
            mIncrementCount(0)
        {
        }

        unsigned Int64 GetTotalInMicroseconds() const;

        inline unsigned Int64 GetTotalInMilliseconds() const
        {
            return GetTotalInMicroseconds() / 1000;
        }

        inline unsigned Int64 GetTotalInSeconds() const
        {
            return GetTotalInMicroseconds() / 1000000;
        }

        inline unsigned Int64 GetAverageInMicroseconds() const
        {
            return (mIncrementCount > 0) ? GetTotalInMicroseconds() / mIncrementCount : 0;
        }

        inline unsigned Int64 GetAverageInMilliseconds() const
        {
            return GetAverageInMicroseconds() / 1000;
        }

        inline unsigned Int64 GetAverageInSeconds() const
        {
            return GetAverageInMicroseconds() / 1000000;
        }

        inline unsigned Int64 GetIncrementCount() const
        {
            return mIncrementCount;
        }

    private:

        friend class Timer;
        friend class Timer2;
        friend class Timer3;

#ifdef WIN32
        unsigned Int64 mTotalTimeInPerformanceCounterUnits;
#else
        unsigned Int64 mTotalTimeInMicroseconds;
#endif
        unsigned Int64 mIncrementCount;
    };
}

#endif // MBase_Timer_h