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74 lines
1.7 KiB
74 lines
1.7 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 GasPricer.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 <libethcore/Common.h>
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namespace dev
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{
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namespace eth
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{
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class State;
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class BlockChain;
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enum class TransactionPriority
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{
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Lowest = 0,
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Low = 2,
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Medium = 4,
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High = 6,
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Highest = 8
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};
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class GasPricer
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{
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public:
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GasPricer() = default;
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virtual ~GasPricer() = default;
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virtual u256 ask(State const&) const = 0;
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virtual u256 bid(TransactionPriority _p = TransactionPriority::Medium) const = 0;
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virtual void update(BlockChain const&) {}
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};
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class TrivialGasPricer: public GasPricer
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{
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public:
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TrivialGasPricer() = default;
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TrivialGasPricer(u256 const& _ask, u256 const& _bid): m_ask(_ask), m_bid(_bid) {}
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void setAsk(u256 const& _ask) { m_ask = _ask; }
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void setBid(u256 const& _bid) { m_bid = _bid; }
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u256 ask() const { return m_ask; }
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u256 ask(State const&) const override { return m_ask; }
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u256 bid(TransactionPriority = TransactionPriority::Medium) const override { return m_bid; }
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private:
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u256 m_ask = 10 * szabo;
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u256 m_bid = 10 * szabo;
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};
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}
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}
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