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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/>.
*/
/** @file TransactionQueue.h
* @author Gav Wood <i@gavwood.com>
* @date 2014
*/
#pragma once
#include "Common.h"
#include "Transaction.h"
namespace eth
{
class BlockChain;
/**
* @brief A queue of Transactions, each stored as RLP.
*/
class TransactionQueue
{
public:
bool attemptImport(bytes const& _block) { try { import(_block); return true; } catch (...) { return false; } }
bool import(bytes const& _block);
void drop(h256 _txHash) { m_data.erase(_txHash); }
std::map<h256, bytes> const& transactions() const { return m_data; }
void setFuture(std::pair<h256, bytes> const& _t);
void noteGood(std::pair<h256, bytes> const& _t);
Transactions interestQueue() { Transactions ret; swap(ret, m_interestQueue); return ret; }
void pushInterest(Address _a) { m_interest[_a]++; }
void popInterest(Address _a) { if (m_interest[_a] > 1) m_interest[_a]--; else if (m_interest[_a]) m_interest.erase(_a); }
private:
std::map<h256, bytes> m_data; ///< Map of SHA3(tx) to tx.
Transactions m_interestQueue;
std::map<Address, int> m_interest;
std::multimap<Address, std::pair<h256, bytes>> m_future; ///< For transactions that have a future nonce; we map their sender address to the tx stuff, and insert once the sender has a valid TX.
};
}