ibrdtn/ibrdtn/data/StreamBlock.h

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/*
 * StreamBlock.h
 *
 *  Created on: 17.11.2011
 *      Author: morgenro
 */

#ifndef STREAMBLOCK_H_
#define STREAMBLOCK_H_

#include "ibrdtn/data/SDNV.h"
#include "ibrdtn/data/Block.h"
#include "ibrdtn/data/ExtensionBlock.h"

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

                        static const char BLOCK_TYPE = 242;

                        enum STREAM_FLAGS
                        {
                                STREAM_BEGIN = 1,
                                STREAM_END = 1 << 0x01
                        };

                        StreamBlock();
                        virtual ~StreamBlock();

                        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);

                        void setSequenceNumber(size_t seq);
                        size_t getSequenceNumber() const;

                        void set(STREAM_FLAGS flag, const bool &value);
                        bool get(STREAM_FLAGS flag) const;

                private:
                        dtn::data::SDNV _seq;
                        size_t _streamflags;
                };

                static StreamBlock::Factory __StreamBlockFactory__;
        } /* namespace data */
} /* namespace dtn */
#endif /* STREAMBLOCK_H_ */