ChainParams.h

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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/>.
*/
#pragma once
 
#include <libdevcore/Common.h>
#include <libethcore/Common.h>
#include <libethcore/ChainOperationParams.h>
#include <libethcore/BlockHeader.h>
#include "Account.h"
 
namespace dev
{
namespace eth
{
 
class SealEngineFace;
 
struct ChainParams: public ChainOperationParams
{
    ChainParams();
    ChainParams(ChainParams const& /*_org*/) = default;
    ChainParams(std::string const& _s, h256 const& _stateRoot = h256());
    ChainParams(bytes const& _genesisRLP, AccountMap const& _state) { populateFromGenesis(_genesisRLP, _state); }
    ChainParams(std::string const& _json, bytes const& _genesisRLP, AccountMap const& _state): ChainParams(_json) { populateFromGenesis(_genesisRLP, _state); }
 
    SealEngineFace* createSealEngine();
 
    h256 parentHash = h256();
    Address author = Address();
    u256 difficulty = 1;
    u256 gasLimit = 1 << 31;
    u256 gasUsed = 0;
    u256 timestamp = 0;
    bytes extraData;
    mutable h256 stateRoot; 
    AccountMap genesisState;
 
    unsigned sealFields = 0;
    bytes sealRLP;
 
    h256 calculateStateRoot(bool _force = false) const;
 
    bytes genesisBlock() const;
 
    ChainParams loadConfig(std::string const& _json, h256 const& _stateRoot = {},
        const boost::filesystem::path& _configPath = {}) const;
 
private:
    void populateFromGenesis(bytes const& _genesisRLP, AccountMap const& _state);
 
    ChainParams loadGenesis(std::string const& _json, h256 const& _stateRoot = {}) const;
};
 
}
}