AgeBlock.cpp

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/*
 * AgeBlock.cpp
 *
 * 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.
 *
 */

#include "ibrdtn/data/AgeBlock.h"
#include <ibrcommon/TimeMeasurement.h>

namespace dtn
{
        namespace data
        {
                const dtn::data::block_t AgeBlock::BLOCK_TYPE = 10;

                dtn::data::Block* AgeBlock::Factory::create()
                {
                        return new AgeBlock();
                }

                AgeBlock::AgeBlock()
                 : dtn::data::Block(AgeBlock::BLOCK_TYPE)
                {
                        _time.start();

                        // set the replicate in every fragment bit
                        set(REPLICATE_IN_EVERY_FRAGMENT, true);
                }

                AgeBlock::~AgeBlock()
                {
                }

                dtn::data::Number AgeBlock::getMicroseconds() const
                {
                        ibrcommon::TimeMeasurement time = this->_time;
                        time.stop();
                        return _age + static_cast<size_t>(time.getMicroseconds());
                }

                dtn::data::Number AgeBlock::getSeconds() const
                {
                        return getMicroseconds() / 1000000;
                }

                void AgeBlock::addMicroseconds(const dtn::data::Number &value)
                {
                        _age += value;
                }

                void AgeBlock::setMicroseconds(const dtn::data::Number &value)
                {
                        _age = value;
                }

                void AgeBlock::addSeconds(const dtn::data::Number &value)
                {
                        _age += (value * 1000000);
                }

                void AgeBlock::setSeconds(const dtn::data::Number &value)
                {
                        _age = value * 1000000;
                }

                dtn::data::Length AgeBlock::getLength() const
                {
                        return getMicroseconds().getLength();
                }

                std::ostream& AgeBlock::serialize(std::ostream &stream, dtn::data::Length &length) const
                {
                        const dtn::data::Number value = getMicroseconds();
                        stream << value;
                        length += value.getLength();
                        return stream;
                }

                std::istream& AgeBlock::deserialize(std::istream &stream, const dtn::data::Length&)
                {
                        stream >> _age;
                        _time.start();
                        return stream;
                }

                dtn::data::Length AgeBlock::getLength_strict() const
                {
                        return 1;
                }

                std::ostream& AgeBlock::serialize_strict(std::ostream &stream, dtn::data::Length &length) const
                {
                        // we have to ignore the age field, because this is very dynamic data
                        stream << (char)0;
                        length += 1;
                        return stream;
                }
        }
}