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76 lines
2.4 KiB
76 lines
2.4 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 MessageFilter.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 <libdevcore/Common.h>
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#include <libdevcore/RLP.h>
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#include <libethcore/CommonEth.h>
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#include "PastMessage.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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struct Manifest;
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class State;
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class MessageFilter
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{
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public:
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MessageFilter(int _earliest = 0, int _latest = -1, unsigned _max = 10, unsigned _skip = 0): m_earliest(_earliest), m_latest(_latest), m_max(_max), m_skip(_skip) {}
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void fillStream(RLPStream& _s) const;
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h256 sha3() const;
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int earliest() const { return m_earliest; }
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int latest() const { return m_latest; }
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unsigned max() const { return m_max; }
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unsigned skip() const { return m_skip; }
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bool matches(h256 _bloom) const;
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bool matches(State const& _s, unsigned _i) const;
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PastMessages matches(Manifest const& _m, unsigned _i) const;
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MessageFilter from(Address _a) { m_from.insert(_a); return *this; }
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MessageFilter to(Address _a) { m_to.insert(_a); return *this; }
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MessageFilter altered(Address _a, u256 _l) { m_stateAltered.insert(std::make_pair(_a, _l)); return *this; }
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MessageFilter altered(Address _a) { m_altered.insert(_a); return *this; }
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MessageFilter withMax(unsigned _m) { m_max = _m; return *this; }
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MessageFilter withSkip(unsigned _m) { m_skip = _m; return *this; }
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MessageFilter withEarliest(int _e) { m_earliest = _e; return *this; }
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MessageFilter withLatest(int _e) { m_latest = _e; return *this; }
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private:
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bool matches(Manifest const& _m, std::vector<unsigned> _p, Address _o, PastMessages _limbo, PastMessages& o_ret) const;
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std::set<Address> m_from;
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std::set<Address> m_to;
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std::set<std::pair<Address, u256>> m_stateAltered;
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std::set<Address> m_altered;
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int m_earliest = 0;
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int m_latest = -1;
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unsigned m_max;
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unsigned m_skip;
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};
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}
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}
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