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/*
core/timer.h
This file is part of the Osirion project and is distributed under
the terms and conditions of the GNU General Public License version 2
*/
#ifndef __INCLUDED_CORE_TIMER_H__
#define __INCLUDED_CORE_TIMER_H__
#include <sys/time.h>
namespace core
{
/// a timer measures intervals in seconds
/*! A timer class measures the time elapsed
* between the last two calls to its mark() function.
*/
class Timer
{
public:
/// Constructor
Timer();
/// Destructor
~Timer();
/// mark the current time as zero
/*! Reset the timer, all subsequent calls too elapsed() will
* use the current timestamp as reference
*/
void mark();
/*! return the time elapsed since the last mark, in seconds
* @see mark()
*/
float elapsed();
/// return timestamp since last mark, in microseconds
unsigned long timestamp();
private:
float timer_elapsed;
struct timezone timer_tz;
struct timeval timer_tick;
}; // class Timer
} // namespace core
#endif // __INCLUDED_CORE_TIMER_H__
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