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122 lines
3.1 KiB
122 lines
3.1 KiB
11 years ago
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/*
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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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Foobar 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 Foobar. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file Client.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 "Common.h"
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#include "Client.h"
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using namespace std;
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using namespace eth;
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Client::Client(std::string const& _dbPath):
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m_bc(_dbPath),
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m_stateDB(State::openDB(_dbPath)),
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m_s(m_stateDB)
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{
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Defaults::setDBPath(_dbPath);
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// Synchronise the state according to the block chain - i.e. replay all transactions in block chain, in order.
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// In practise this won't need to be done since the State DB will contain the keys for the tries for most recent (and many old) blocks.
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// TODO: currently it contains keys for *all* blocks. Make it remove old ones.
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s.sync(bc);
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s.sync(tq);
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m_work = new thread([&](){ while (m_workState != Deleting) work(); m_workState = Deleted; });
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}
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Client::~Client()
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{
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if (m_workState == Active)
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m_workState = Deleting;
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while (m_workState != Deleted)
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usleep(10000);
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}
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void Client::transact(Address _dest, u256 _amount, u256 _fee, u256s _data = u256s(), Secret _secret)
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{
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}
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BlockChain const& Client::blockChain() const
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{
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}
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TransactionQueue const& Client::transactionQueue() const
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{
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}
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unsigned Client::peerCount() const
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{
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}
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void Client::startNetwork(short _listenPort = 30303, std::string const& _seedHost, short _port = 30303)
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{
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if (m_net)
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return;
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m_net = new PeerServer(m_bc, 0, _listenPort);
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if (_seedHost.size())
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m_net->connect(_seedHost, _port);
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}
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void Client::stopNetwork()
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{
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delete m_net;
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m_net = nullptr;
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}
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void Client::startMining()
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{
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m_doMine = true;
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}
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void Client::stopMining()
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{
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m_doMine = false;
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}
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std::pair<unsigned, unsigned> Client::miningProgress() const
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{
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}
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void Client::work(string const& _seedHost, short _port)
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{
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// Process network events.
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// Synchronise block chain with network.
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// Will broadcast any of our (new) transactions and blocks, and collect & add any of their (new) transactions and blocks.
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m_net->process(m_bc, m_tq);
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// Synchronise state to block chain.
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// This should remove any transactions on our queue that are included within our state.
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// It also guarantees that the state reflects the longest (valid!) chain on the block chain.
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// This might mean reverting to an earlier state and replaying some blocks, or, (worst-case:
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// if there are no checkpoints before our fork) reverting to the genesis block and replaying
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// all blocks.
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m_s.sync(m_bc); // Resynchronise state with block chain & trans
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m_s.sync(m_tq);
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if (m_doMine)
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{
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// Mine for a while.
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bytes b = s.mine(100);
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if (b.size())
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// Import block.
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bc.attemptImport(b, stateDB);
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}
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}
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