/*
 * timemeasurement.h
 *
 *  Created on: Nov 25, 2011
 *      Author: muecklgr_local
 */

#ifndef GLTB_TIMEMEASUREMENT_H_
#define GLTB_TIMEMEASUREMENT_H_

#include <vector>

#include "timer.h"

namespace gltb {
	/**
	 * Helper class for repeated time measurements including averaging gathered results
	 */
	class TimeMeasurement {
	public:
		TimeMeasurement() : startOffset(0), maxNumMeasurements(-1) {};

		void setMaxNumMeasurements(unsigned int maxNumMeasurements);

		void reset();
		void start(bool continueMeasurement=false);
		void stop();

		void addMeasurement(double time); // add externally made measurement

		const std::vector<double> &getMeasurements() { return measurements; };
		int getNumMeasurements() { return (int)measurements.size(); };

		double getAverageTime(int numMeasurements=-1);

	private:
		Timer timer;
		double startOffset;

		unsigned int maxNumMeasurements;
		std::vector<double> measurements;
	};
}

#endif /* TIMEMEASUREMENT_H_ */