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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 WebThree.cpp
* @author Gav Wood <i@gavwood.com>
* @date 2014
*/
#include "WebThree.h"
#include <chrono>
#include <thread>
#include <boost/filesystem.hpp>
#include <libdevcore/Log.h>
#include <libp2p/Host.h>
#include <libethereum/Defaults.h>
#include <libethereum/EthereumHost.h>
#include <libwhisper/WhisperHost.h>
using namespace std;
using namespace dev;
using namespace dev::p2p;
using namespace dev::eth;
using namespace dev::shh;
WebThreeDirect::WebThreeDirect(
std::string const& _clientVersion,
std::string const& _dbPath,
bool _forceClean,
std::set<std::string> const& _interfaces,
NetworkPreferences const& _n,
bytesConstRef _network, int _miners
):
m_clientVersion(_clientVersion),
m_net(_clientVersion, _n, _network)
{
if (_dbPath.size())
Defaults::setDBPath(_dbPath);
if (_interfaces.count("eth"))
m_ethereum.reset(new eth::Client(&m_net, _dbPath, _forceClean, 0, _miners));
if (_interfaces.count("shh"))
m_whisper = m_net.registerCapability<WhisperHost>(new WhisperHost);
}
WebThreeDirect::~WebThreeDirect()
{
// Utterly horrible right now - WebThree owns everything (good), but:
// m_net (Host) owns the eth::EthereumHost via a shared_ptr.
// The eth::EthereumHost depends on eth::Client (it maintains a reference to the BlockChain field of Client).
// eth::Client (owned by us via a unique_ptr) uses eth::EthereumHost (via a weak_ptr).
// Really need to work out a clean way of organising ownership and guaranteeing startup/shutdown is perfect.
// Have to call stop here to get the Host to kill its io_service otherwise we end up with left-over reads,
// still referencing Sessions getting deleted *after* m_ethereum is reset, causing bad things to happen, since
// the guarantee is that m_ethereum is only reset *after* all sessions have ended (sessions are allowed to
// use bits of data owned by m_ethereum).
m_net.stop();
m_ethereum.reset();
}
void WebThreeDirect::setNetworkPreferences(p2p::NetworkPreferences const& _n)
{
auto had = haveNetwork();
if (had)
stopNetwork();
m_net.setNetworkPreferences(_n);
if (had)
startNetwork();
}
std::vector<PeerSessionInfo> WebThreeDirect::peers()
{
return m_net.peerSessionInfo();
}
size_t WebThreeDirect::peerCount() const
{
return m_net.peerCount();
}
void WebThreeDirect::setIdealPeerCount(size_t _n)
{
return m_net.setIdealPeerCount(_n);
}
bytes WebThreeDirect::saveNetwork()
{
return m_net.saveNetwork();
}
void WebThreeDirect::connect(std::string const& _seedHost, unsigned short _port)
{
m_net.addNode(NodeId(), _seedHost, _port, _port);
}