BlockChainImporter.cpp

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/*
    This file is part of cpp-ethereum.
 
    cpp-ethereum is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    cpp-ethereum is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with cpp-ethereum.  If not, see <http://www.gnu.org/licenses/>.
*/
 
#include "BlockChainImporter.h"
#include "BlockChain.h"
 
#include <libdevcore/RLP.h>
#include <libethcore/BlockHeader.h>
 
namespace dev
{
namespace eth
{
 
namespace
{
 
class BlockChainImporter: public BlockChainImporterFace
{
public:
    explicit BlockChainImporter(BlockChain& _blockChain): m_blockChain(_blockChain) {}
 
    void importBlock(BlockHeader const& _header, RLP _transactions, RLP _uncles, RLP _receipts, u256 const& _totalDifficulty) override
    {
        RLPStream headerRlp;
        _header.streamRLP(headerRlp);
 
        RLPStream block(3);
        block.appendRaw(headerRlp.out());
        block << _transactions << _uncles;
 
        m_blockChain.insertWithoutParent(block.out(), _receipts.data(), _totalDifficulty);
    }
 
    void setChainStartBlockNumber(u256 const& _number) override
    {
        m_blockChain.setChainStartBlockNumber(static_cast<unsigned>(_number));
    }
 
private:
    BlockChain& m_blockChain;
};
 
}
 
std::unique_ptr<BlockChainImporterFace> createBlockChainImporter(BlockChain& _blockChain)
{
    return std::unique_ptr<BlockChainImporterFace>(new BlockChainImporter(_blockChain));
}
 
}
}