tu_timer.h

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// tu_timer.h	-- by Thatcher Ulrich <[e-mail]>

// This source code has been donated to the Public Domain.  Do
// whatever you want with it.

// Utility/profiling timer.


#ifndef TU_TIMER_H


#include "base/tu_types.h"


namespace tu_timer
{
	// General-purpose wall-clock timer.  May not be hi-res enough
	// for profiling.
	uint64 get_ticks();
	double ticks_to_seconds(uint64 ticks);
	
	// Hi-res timer for CPU profiling.

	// Return a hi-res timer value.  Time 0 is arbitrary, so
	// generally you want to call this at the start and end of an
	// operation, and pass the difference to
	// profile_ticks_to_seconds() to find out how long the
	// operation took.
	uint64	get_profile_ticks();

	// Convert a hi-res ticks value into seconds.
	double	profile_ticks_to_seconds(uint64 profile_ticks);
};


#endif // TU_TIMER_H


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