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62 lines
2.0 KiB
62 lines
2.0 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 TransactionQueue.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 <boost/thread.hpp>
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#include <libethential/Common.h>
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#include "libethcore/CommonEth.h"
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#include "Guards.h"
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namespace eth
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{
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class BlockChain;
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/**
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* @brief A queue of Transactions, each stored as RLP.
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* @threadsafe
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*/
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class TransactionQueue
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{
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public:
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bool attemptImport(bytesConstRef _tx) { try { import(_tx); return true; } catch (...) { return false; } }
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bool attemptImport(bytes const& _tx) { return attemptImport(&_tx); }
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bool import(bytesConstRef _tx);
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void drop(h256 _txHash);
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std::map<h256, bytes> transactions() const { ReadGuard l(m_lock); return m_current; }
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std::pair<unsigned, unsigned> items() const { ReadGuard l(m_lock); return std::make_pair(m_current.size(), m_future.size()); }
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void setFuture(std::pair<h256, bytes> const& _t);
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void noteGood(std::pair<h256, bytes> const& _t);
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private:
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mutable boost::shared_mutex m_lock; ///< General lock.
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std::set<h256> m_known; ///< Hashes of transactions in both sets.
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std::map<h256, bytes> m_current; ///< Map of SHA3(tx) to tx.
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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.
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};
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}
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