StopWatch.hpp

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/*****************************************************************************
 * Copyright (C) 2011 by Benjamin Hadorn (b_hadorn@bluewin.ch)
 *****************************************************************************
 * Project    : Zeus Base Library
 * Module     : StopWatch
 * Package    : Zeus.ZeusBase.System
 * Author     : Benjamin Hadorn
 * Date       : 27.12.2011
 * System     : Zeus-Framework
 *****************************************************************************
 * Licence:                                                                  *
 *   This library is free software; you can redistribute it and/or modify    *
 *   it under the terms of the GNU Lesser General Public License as          *
 *   published by the Free Software Foundation; either version               *
 *   2.1 of the License, or (at your option) any later version.              *
 *                                                                           *
 *   This library is distributed in the hope that it will be useful,         *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of          *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the            *
 *   GNU Lesser General Public License for more details.                     *
 *                                                                           *
 *   You should have received a copy of the GNU Lesser General Public        *
 *   License along with this library; if not, write to the Free Software     *
 *   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA    *
 *****************************************************************************/

/*****************************************************************************
 * Changes:
 *  27.12.2011 bha: created zeus 2.0
 *****************************************************************************/

#ifndef StopWatchHPP
#define StopWatchHPP

#include <zeusbase/System/Time.h>
#include <stdio.h>

BEGIN_NAMESPACE_Zeus

/*****************************************************************************/
/*****************************************************************************/
class TStopWatch
{
  public:
    /*************************************************************************/
    /*************************************************************************/
    inline TStopWatch(bool bStart = true)
    {
      m_fStartTime  = 0;
      m_fStopTime   = 0;
      m_fPausedTime = 0;
      if (bStart)
      {
        start();
      }
    }

    /*************************************************************************/
    /*************************************************************************/
    inline void start()
    {
      m_fStartTime = TTime::getTimeStamp();
    }

    /*************************************************************************/
    /*************************************************************************/
    inline Float stop()
    {
      m_fStopTime = TTime::getTimeStamp();
      return getStoppedTime();
    }

    /*************************************************************************/
    /*************************************************************************/
    inline void stopAndPrint(const TString& rEvent)
    {
      stop();
      print(rEvent);
    }

    /*************************************************************************/
    /*************************************************************************/
    inline bool exceedTime(const Float& rfMaxTime)
    {
      return (getTime() > rfMaxTime);
    }

    /*************************************************************************/
    /*************************************************************************/
    inline Float getTime() const
    {
      return m_fPausedTime + (TTime::getTimeStamp() - m_fStartTime);
    }

    /*************************************************************************/
    /*************************************************************************/
    inline Float getStoppedTime() const
    {
      return m_fPausedTime + (m_fStopTime - m_fStartTime);
    }

    /*************************************************************************/
    /*************************************************************************/
    inline void print(const TString& rEvent) const
    {
      printf("%s [%f sec]\n", rEvent.c_str(NULL), getStoppedTime());
    }

    /*************************************************************************/
    /*************************************************************************/
    inline void pause()
    {
      m_fPausedTime = stop();
      m_fStopTime   = 0;
      m_fStartTime  = 0;
    }

    /*************************************************************************/
    /*************************************************************************/
    inline void reset()
    {
      stop();
      m_fPausedTime = 0;
    }


  private:
    Float m_fStartTime;
    Float m_fStopTime;
    Float m_fPausedTime;
};


END_NAMESPACE_Zeus

#endif