You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 

77 lines
2.1 KiB

/*
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/>.
*/
/** @file LogFilter.h
* @author Gav Wood <i@gavwood.com>
* @date 2014
*/
#pragma once
#include <libdevcore/Common.h>
#include <libdevcore/RLP.h>
#include <libethcore/Common.h>
#include "TransactionReceipt.h"
namespace dev
{
namespace eth
{
class LogFilter;
}
namespace eth
{
/// Simple stream output for the StateDiff.
std::ostream& operator<<(std::ostream& _out, dev::eth::LogFilter const& _s);
class State;
class LogFilter
{
public:
LogFilter(h256 _earliest = EarliestBlockHash, h256 _latest = PendingBlockHash): m_earliest(_earliest), m_latest(_latest) {}
void streamRLP(RLPStream& _s) const;
h256 sha3() const;
h256 earliest() const { return m_earliest; }
h256 latest() const { return m_latest; }
std::vector<LogBloom> bloomPossibilities() const;
bool matches(LogBloom _bloom) const;
bool matches(State const& _s, unsigned _i) const;
LogEntries matches(TransactionReceipt const& _r) const;
LogFilter address(Address _a) { m_addresses.insert(_a); return *this; }
LogFilter topic(unsigned _index, h256 const& _t) { if (_index < 4) m_topics[_index].insert(_t); return *this; }
LogFilter withEarliest(h256 _e) { m_earliest = _e; return *this; }
LogFilter withLatest(h256 _e) { m_latest = _e; return *this; }
friend std::ostream& dev::eth::operator<<(std::ostream& _out, dev::eth::LogFilter const& _s);
private:
AddressHash m_addresses;
std::array<h256Hash, 4> m_topics;
h256 m_earliest = EarliestBlockHash;
h256 m_latest = PendingBlockHash;
};
}
}