ClockCycleCounter.h Example File

  /*****************************************************************************

          ClockCycleCounter.h
          Copyright (c) 2003 Laurent de Soras

  Instrumentation class, for accurate time interval measurement. You may have
  to modify the implementation to adapt it to your system and/or compiler.

  --- Legal stuff ---

  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

  *Tab=3***********************************************************************/

  #if ! defined (stopwatch_ClockCycleCounter_HEADER_INCLUDED)
  #define stopwatch_ClockCycleCounter_HEADER_INCLUDED

  #if defined (_MSC_VER)
          #pragma once
          #pragma warning (4 : 4250) // "Inherits via dominance."
  #endif

  /*\\\ INCLUDE FILES \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/

  #include        "def.h"
  #include        "Int64.h"

  namespace stopwatch
  {

  class ClockCycleCounter
  {

  /*\\\ PUBLIC \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/

  public:

                                                  ClockCycleCounter ();

          stopwatch_FORCEINLINE void
                                                  start ();
          stopwatch_FORCEINLINE void
                                                  stop_lap ();
          Int64                           get_time_total () const;
          Int64                           get_time_best_lap () const;

  /*\\\ PROTECTED \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/

  protected:

  /*\\\ PRIVATE \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/

  private:

          void                            compute_clk_mul ();
          void                            compute_measure_time_total ();
          void                            compute_measure_time_lap ();

          static void             spend_time ();
          static stopwatch_FORCEINLINE Int64
                                                  read_clock_counter ();

          Int64                           _start_time;
          Int64                           _state;
          Int64                           _best_score;

          static Int64    _measure_time_total;
          static Int64    _measure_time_lap;
          static int              _clk_mul;
          static bool             _init_flag;

  /*\\\ FORBIDDEN MEMBER FUNCTIONS \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/

  private:

                                                  ClockCycleCounter (const ClockCycleCounter &other);
          ClockCycleCounter &
                                                  operator = (const ClockCycleCounter &other);
          bool                            operator == (const ClockCycleCounter &other);
          bool                            operator != (const ClockCycleCounter &other);

  };      // class ClockCycleCounter

  }       // namespace stopwatch

  #include        "ClockCycleCounter.hpp"

  #endif  // stopwatch_ClockCycleCounter_HEADER_INCLUDED

  /*\\\ EOF \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/