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https://github.com/RetroShare/RetroShare.git
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83 lines
2.7 KiB
C
83 lines
2.7 KiB
C
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#pragma once
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/*
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* libretroshare/src/serialiser: rstlvitem.h
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*
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* RetroShare Serialiser.
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*
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* Copyright 2007-2008 by Robert Fernie, Chris Parker
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License Version 2 as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA.
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*
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* Please report all bugs and problems to "retroshare@lunamutt.com".
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*
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*/
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/*******************************************************************
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* These are the Compound TLV structures that must be (un)packed.
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*
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******************************************************************/
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#include <iosfwd>
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#include <string>
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#include <inttypes.h>
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//! A base class for all tlv items
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/*! This class is provided to allow the serialisation and deserialization of compund
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tlv items
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*/
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class RsTlvItem
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{
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public:
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RsTlvItem() { return; }
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virtual ~RsTlvItem() { return; }
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virtual uint32_t TlvSize() const = 0;
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virtual void TlvClear() = 0;
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virtual void TlvShallowClear(); /*! Don't delete allocated data */
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virtual bool SetTlv(void *data, uint32_t size, uint32_t *offset) const = 0; /* serialise */
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virtual bool GetTlv(void *data, uint32_t size, uint32_t *offset) = 0; /* deserialise */
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virtual std::ostream &print(std::ostream &out, uint16_t indent) const = 0;
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std::ostream &printBase(std::ostream &out, std::string clsName, uint16_t indent) const;
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std::ostream &printEnd(std::ostream &out, std::string clsName, uint16_t indent) const;
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};
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std::ostream &printIndent(std::ostream &out, uint16_t indent);
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class RsTlvUnit: public RsTlvItem
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{
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public:
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RsTlvUnit(uint16_t tlv_type);
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virtual ~RsTlvUnit() { return; }
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virtual uint32_t TlvSize() const;
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virtual bool SetTlv(void *data, uint32_t size, uint32_t *offset) const;
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virtual bool GetTlv(void *data, uint32_t size, uint32_t *offset);
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virtual uint16_t TlvType() const { return mTlvType; }
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// These Functions need to be implemented.
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//virtual void TlvClear() = 0;
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//virtual std::ostream &print(std::ostream &out, uint16_t indent) = 0 const;
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virtual uint32_t TlvSizeUnit() const = 0;
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virtual bool SetTlvUnit(void *data, uint32_t size, uint32_t *offset) const = 0;
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virtual bool GetTlvUnit(void *data, uint32_t size, uint32_t *offset) = 0;
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private:
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uint16_t mTlvType;
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};
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