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100 lines
2.9 KiB
100 lines
2.9 KiB
/*
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This file is part of cpp-ethereum.
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cpp-ethereum is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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cpp-ethereum 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 General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file BlockChainLoader.cpp
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* @author Marek Kotewicz <marek@ethdev.com>
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* @date 2015
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*/
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#include "BlockChainLoader.h"
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#include "StateLoader.h"
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#include "Common.h"
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using namespace std;
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using namespace dev;
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using namespace dev::test;
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using namespace dev::eth;
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namespace dev
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{
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namespace test
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{
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dev::eth::BlockInfo toBlockInfo(Json::Value const& _json);
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bytes toGenesisBlock(Json::Value const& _json);
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}
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}
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dev::eth::BlockInfo dev::test::toBlockInfo(Json::Value const& _json)
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{
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RLPStream rlpStream;
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auto size = _json.getMemberNames().size();
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rlpStream.appendList(_json["hash"].empty() ? size : (size - 1));
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rlpStream << fromHex(_json["parentHash"].asString());
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rlpStream << fromHex(_json["uncleHash"].asString());
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rlpStream << fromHex(_json["coinbase"].asString());
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rlpStream << fromHex(_json["stateRoot"].asString());
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rlpStream << fromHex(_json["transactionsTrie"].asString());
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rlpStream << fromHex(_json["receiptTrie"].asString());
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rlpStream << fromHex(_json["bloom"].asString());
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rlpStream << bigint(_json["difficulty"].asString());
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rlpStream << bigint(_json["number"].asString());
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rlpStream << bigint(_json["gasLimit"].asString());
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rlpStream << bigint(_json["gasUsed"].asString());
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rlpStream << bigint(_json["timestamp"].asString());
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rlpStream << fromHex(_json["extraData"].asString());
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rlpStream << fromHex(_json["mixHash"].asString());
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rlpStream << fromHex(_json["nonce"].asString());
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BlockInfo result;
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RLP rlp(rlpStream.out());
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result.populateFromHeader(rlp, IgnoreNonce);
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return result;
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}
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bytes dev::test::toGenesisBlock(Json::Value const& _json)
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{
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BlockInfo bi = toBlockInfo(_json);
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RLPStream rlpStream;
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bi.streamRLP(rlpStream, WithNonce);
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RLPStream fullStream(3);
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fullStream.appendRaw(rlpStream.out());
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fullStream.appendRaw(RLPEmptyList);
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fullStream.appendRaw(RLPEmptyList);
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bi.verifyInternals(&fullStream.out());
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return fullStream.out();
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}
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BlockChainLoader::BlockChainLoader(Json::Value const& _json)
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{
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// load pre state
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StateLoader sl(_json["pre"]);
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m_state = sl.state();
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// load genesisBlock
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m_bc.reset(new BlockChain(toGenesisBlock(_json["genesisBlockHeader"]), m_dir.path(), true));
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// load blocks
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for (auto const& block: _json["blocks"])
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{
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bytes rlp = fromHex(block["rlp"].asString());
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m_bc->import(rlp, m_state.db());
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}
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// sync state
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m_state.sync(*m_bc);
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}
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