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69 lines
2.3 KiB
69 lines
2.3 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 AddressState.h
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* @author Gav Wood <i@gavwood.com>
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* @date 2014
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*/
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#pragma once
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#include "Common.h"
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#include "RLP.h"
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namespace eth
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{
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enum class AddressType
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{
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Dead,
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Normal,
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Contract
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};
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class AddressState
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{
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public:
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AddressState(): m_type(AddressType::Dead), m_balance(0), m_nonce(0) {}
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AddressState(u256 _balance, u256 _nonce): m_type(AddressType::Normal), m_balance(_balance), m_nonce(_nonce) {}
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AddressState(u256 _balance, u256 _nonce, h256 _contractRoot): m_type(AddressType::Contract), m_balance(_balance), m_nonce(_nonce), m_contractRoot(_contractRoot) {}
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void incNonce() { m_nonce++; }
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void addBalance(bigint _i) { m_balance = (u256)((bigint)m_balance + _i); }
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void kill() { m_type = AddressType::Dead; m_memory.clear(); m_contractRoot = h256(); m_balance = 0; m_nonce = 0; }
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AddressType type() const { return m_type; }
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u256& balance() { return m_balance; }
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u256 const& balance() const { return m_balance; }
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u256& nonce() { return m_nonce; }
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u256 const& nonce() const { return m_nonce; }
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bool haveMemory() const { return m_memory.empty() && m_contractRoot != h256(); } // TODO: best to switch to m_haveMemory flag rather than try to infer.
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h256 oldRoot() const { assert(!haveMemory()); return m_contractRoot; }
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std::map<u256, u256>& takeMemory() { assert(m_type == AddressType::Contract && haveMemory()); m_contractRoot = h256(); return m_memory; }
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std::map<u256, u256> const& memory() const { assert(m_type == AddressType::Contract && haveMemory()); return m_memory; }
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private:
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AddressType m_type;
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u256 m_balance;
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u256 m_nonce;
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h256 m_contractRoot;
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// TODO: change to unordered_map.
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std::map<u256, u256> m_memory;
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};
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}
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