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/* $Id$

 * 

 * See the COPYING file for the terms of usage and distribution.

 */



#ifndef __CLOCK_H

#define __CLOCK_H



#include <log4cpp/Portability.hh>



#ifdef LOG4CPP_HAVE_STDINT_H

#include <stdint.h>

#endif // LOG4CPP_HAVE_STDINT_H



#ifdef __osf__

    typedef long usec_t;    /* number of microseconds since 1970/01/01 */

#   define INT64_CONSTANT(val)  (val##L)

#else

    typedef int64_t usec_t;

#   define INT64_CONSTANT(val)  (val##LL)

#endif



class Clock

{

public:

    static bool		UsingCPU;

    static usec_t 	time(void);



    			Clock(void);

    			~Clock(void);



    bool		active(void) const { return _active; }

    usec_t		elapsed(void) const;

    usec_t		start(void);

    usec_t		reset(void) { return start(); }

    usec_t		stop(void);



private:

    usec_t		_start;    

    usec_t		_elapsed;

    bool		_active;

};



#endif
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