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

        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 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\*/