mirror of
https://github.com/RetroShare/RetroShare.git
synced 2025-02-18 05:44:14 -05:00
139 lines
4.2 KiB
C++
139 lines
4.2 KiB
C++
/*******************************************************************************
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* libretroshare/src/serialiser: rstlvlist.h *
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* *
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* libretroshare: retroshare core library *
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* *
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* Copyright 2008 by Robert Fernie <retroshare@lunamutt.com> *
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* *
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* This program is free software: you can redistribute it and/or modify *
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* it under the terms of the GNU Lesser General Public License as *
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* published by the Free Software Foundation, either version 3 of the *
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* License, or (at your option) any later version. *
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* *
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* This program 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 *
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* GNU Lesser General Public License for more details. *
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* *
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* You should have received a copy of the GNU Lesser General Public License *
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* along with this program. If not, see <https://www.gnu.org/licenses/>. *
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* *
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*******************************************************************************/
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#pragma once
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#include "serialiser/rstlvbase.h"
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#include "serialiser/rstlvitem.h"
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#include <list>
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#define TLV_DEBUG_LIST 1
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template<class TLV_CLASS,uint32_t TLV_TYPE> class t_RsTlvList: public RsTlvItem
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{
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public:
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t_RsTlvList() {}
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virtual ~t_RsTlvList() {}
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virtual uint32_t TlvSize() const
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{
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uint32_t size = TLV_HEADER_SIZE;
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typename std::list<TLV_CLASS>::const_iterator it;
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for(it = mList.begin();it != mList.end(); ++it)
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{
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size += it->TlvSize();
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}
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return size;
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}
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virtual void TlvClear(){ mList.clear(); }
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virtual bool SetTlv(void *data, uint32_t size, uint32_t *offset) const
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{
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uint32_t tlvsize = TlvSize();
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uint32_t tlvend = *offset + tlvsize;
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/* must check sizes */
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if (size < tlvend)
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{
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#ifdef TLV_DEBUG_LIST
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std::cerr << "RsTlvList::SetTlv() Not enough size";
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std::cerr << std::endl;
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#endif
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return false; /* not enough space */
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}
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bool ok = true;
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/* start at data[offset] */
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ok &= SetTlvBase(data, tlvend, offset, TLV_TYPE, tlvsize);
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typename std::list<TLV_CLASS>::const_iterator it;
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for(it = mList.begin();it != mList.end(); ++it)
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{
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ok &= it->SetTlv(data,tlvend,offset) ;
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}
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return ok ;
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}
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virtual bool GetTlv(void *data, uint32_t size, uint32_t *offset)
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{
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if (size < *offset + TLV_HEADER_SIZE)
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{
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#ifdef TLV_DEBUG_LIST
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std::cerr << "RsTlvList::GetTlv() Not enough size";
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std::cerr << std::endl;
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#endif
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return false;
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}
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uint16_t tlvtype = GetTlvType( &(((uint8_t *) data)[*offset]) );
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uint32_t tlvsize = GetTlvSize( &(((uint8_t *) data)[*offset]) );
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uint32_t tlvend = *offset + tlvsize;
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if (size < tlvend) /* check size */
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return false; /* not enough space */
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if (tlvtype != TLV_TYPE) /* check type */
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return false;
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bool ok = true;
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/* ready to load */
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TlvClear();
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/* skip the header */
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(*offset) += TLV_HEADER_SIZE;
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/* while there is TLV : 2 (type) + 4 (len) */
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while(ok && ((*offset) + 6 < tlvend))
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{
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TLV_CLASS item;
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ok &= item.GetTlv(data,tlvend,offset);
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if (ok)
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{
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mList.push_back(item);
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}
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}
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if(*offset != tlvend)
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{
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std::cerr << "(EE) deserialisation error in " << __PRETTY_FUNCTION__ << std::endl;
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}
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return *offset == tlvend ;
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}
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virtual std::ostream &print(std::ostream &out, uint16_t indent) const
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{
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printBase(out, "Template TlvList", indent);
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typename std::list<TLV_CLASS>::const_iterator it;
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for(it = mList.begin();it != mList.end(); ++it)
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{
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it->print(out, indent + 2) ;
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}
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printEnd(out, "Template TlvList", indent);
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return out ;
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}
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std::list<TLV_CLASS> mList;
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};
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