TimeMeasurement.h

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/*
 * TimeMeasurement.h
 *
 * Copyright (C) 2011 IBR, TU Braunschweig
 *
 * Written-by: Johannes Morgenroth <morgenroth@ibr.cs.tu-bs.de>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

#ifndef TIMEMEASUREMENT_H_
#define TIMEMEASUREMENT_H_

#include <time.h>
#include <iostream>
#include <sys/types.h>
#include <stdint.h>

namespace ibrcommon
{
        class TimeMeasurement
        {
        public:
                TimeMeasurement();
                virtual ~TimeMeasurement();

                void start();
                void stop();
                
                double getMicroseconds() const;
                double getMilliseconds() const;

                void getTime(struct timespec &diff) const;
                time_t getSeconds() const;

                friend std::ostream &operator<<(std::ostream &stream, const TimeMeasurement &measurement);

                static std::ostream& format(std::ostream &stream, const double value);

        private:
                void gettime(struct timespec *ts);

                struct timespec _start;
                struct timespec _end;
        };
}

#endif /* TIMEMEASUREMENT_H_ */