ibrdtn/ibrdtn/data/ScopeControlHopLimitBlock.h

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/*
 * ScopeControlHopLimitBlock.h
 *
 *  Created on: 05.08.2011
 *      Author: morgenro
 */

#include <ibrdtn/data/Block.h>
#include <ibrdtn/data/SDNV.h>
#include <ibrdtn/data/ExtensionBlock.h>

#ifndef SCOPECONTROLHOPLIMITBLOCK_H_
#define SCOPECONTROLHOPLIMITBLOCK_H_

namespace dtn
{
        namespace data
        {
                class ScopeControlHopLimitBlock : public dtn::data::Block
                {
                public:
                        class Factory : public dtn::data::ExtensionBlock::Factory
                        {
                        public:
                                Factory() : dtn::data::ExtensionBlock::Factory(ScopeControlHopLimitBlock::BLOCK_TYPE) {};
                                virtual ~Factory() {};
                                virtual dtn::data::Block* create();
                        };

                        static const char BLOCK_TYPE = 199;

                        ScopeControlHopLimitBlock();
                        virtual ~ScopeControlHopLimitBlock();

                        size_t getHopsToLive() const;
                        void increment(size_t hops = 1);
                        void setLimit(size_t hops);

                        virtual size_t getLength() const;
                        virtual std::ostream &serialize(std::ostream &stream, size_t &length) const;
                        virtual std::istream &deserialize(std::istream &stream, const size_t length);

                private:
                        dtn::data::SDNV _count;
                        dtn::data::SDNV _limit;
                };

                static ScopeControlHopLimitBlock::Factory __ScopeControlHopLimitBlockFactory__;
        } /* namespace data */
} /* namespace dtn */
#endif /* SCOPECONTROLHOPLIMITBLOCK_H_ */