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118 lines
3.2 KiB
118 lines
3.2 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.cpp
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* @author Gav Wood <i@gavwood.com>
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* @date 2014
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*/
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#include "TransactionQueue.h"
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#include <libdevcore/Log.h>
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#include <libethcore/Exceptions.h>
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#include "Transaction.h"
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using namespace std;
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using namespace dev;
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using namespace dev::eth;
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const char* TransactionQueueChannel::name() { return EthCyan "┉┅▶"; }
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ImportResult TransactionQueue::import(bytesConstRef _transactionRLP, ImportCallback const& _cb, IfDropped _ik)
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{
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// Check if we already know this transaction.
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h256 h = sha3(_transactionRLP);
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UpgradableGuard l(m_lock);
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// TODO: keep old transactions around and check in State for nonce validity
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if (m_known.count(h))
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return ImportResult::AlreadyKnown;
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if (m_dropped.count(h) && _ik == IfDropped::Ignore)
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return ImportResult::AlreadyInChain;
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try
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{
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// Check validity of _transactionRLP as a transaction. To do this we just deserialise and attempt to determine the sender.
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// If it doesn't work, the signature is bad.
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// The transaction's nonce may yet be invalid (or, it could be "valid" but we may be missing a marginally older transaction).
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Transaction t(_transactionRLP, CheckTransaction::Everything);
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UpgradeGuard ul(l);
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// If valid, append to blocks.
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m_current[h] = t;
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m_known.insert(h);
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if (_cb)
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m_callbacks[h] = _cb;
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ctxq << "Queued vaguely legit-looking transaction" << h.abridged();
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m_onReady();
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}
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catch (Exception const& _e)
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{
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ctxq << "Ignoring invalid transaction: " << diagnostic_information(_e);
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return ImportResult::Malformed;
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}
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catch (std::exception const& _e)
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{
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ctxq << "Ignoring invalid transaction: " << _e.what();
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return ImportResult::Malformed;
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}
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return ImportResult::Success;
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}
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void TransactionQueue::setFuture(std::pair<h256, Transaction> const& _t)
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{
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WriteGuard l(m_lock);
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if (m_current.count(_t.first))
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{
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m_current.erase(_t.first);
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m_unknown.insert(make_pair(_t.second.sender(), _t));
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}
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}
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void TransactionQueue::noteGood(std::pair<h256, Transaction> const& _t)
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{
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WriteGuard l(m_lock);
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auto r = m_unknown.equal_range(_t.second.sender());
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for (auto it = r.first; it != r.second; ++it)
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m_current.insert(it->second);
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m_unknown.erase(r.first, r.second);
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}
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void TransactionQueue::drop(h256 const& _txHash)
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{
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UpgradableGuard l(m_lock);
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if (!m_known.count(_txHash))
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return;
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UpgradeGuard ul(l);
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m_dropped.insert(_txHash);
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m_known.erase(_txHash);
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if (m_current.count(_txHash))
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m_current.erase(_txHash);
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else
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{
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for (auto i = m_unknown.begin(); i != m_unknown.end(); ++i)
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if (i->second.first == _txHash)
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{
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m_unknown.erase(i);
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break;
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}
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}
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}
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