Timer.hpp

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// Timer.hpp
// =======
// High Resolution Timer.
// This timer is able to measure the elapsed time with 1 micro-second accuracy
// in both Windows, Linux and Unix system
//
//  AUTHOR: Song Ho Ahn ([email protected])
// CREATED: 2003-01-13
// UPDATED: 2006-01-13
//
// Copyright (c) 2003 Song Ho Ahn

#ifndef OPENTXS_CORE_TIMER_HPP
#define OPENTXS_CORE_TIMER_HPP

#include <cinttypes>

#ifdef _WIN32
#ifndef _WINDOWS_
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
#include <windows.h>
#endif
#else
#include <sys/time.h>
#endif

class Timer
{
public:
    EXPORT Timer(bool bStart = false); // default constructor // FT: added
                                       // default argument.
    EXPORT ~Timer();                   // default destructor

    EXPORT void start(); // start timer
    void stop();         // stop the timer
    void clear();        // stop the timer and clear the contents.

    double getElapsedTime();      // get elapsed time in second
    double getElapsedTimeInSec(); // get elapsed time in second (same as
                                  // getElapsedTime)
    EXPORT double getElapsedTimeInMilliSec(); // get elapsed time in
                                              // milli-second
    double getElapsedTimeInMicroSec(); // get elapsed time in micro-second

protected:
private:
    double startTimeInMicroSec; // starting time in micro-second
    double endTimeInMicroSec;   // ending time in micro-second
    int32_t stopped;            // stop flag
#ifdef WIN32
    LARGE_INTEGER frequency;  // ticks per second
    LARGE_INTEGER startCount; //
    LARGE_INTEGER endCount;   //
#else
    timeval startCount; //
    timeval endCount;   //
#endif
};

#endif // OPENTXS_CORE_TIMER_HPP