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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 PeerSession.h
* @author Gav Wood <i@gavwood.com>
* @date 2014
*/
#pragma once
#include <array>
#include <set>
#include <memory>
#include <utility>
#include <libethential/RLP.h>
#include <libethcore/CommonEth.h>
#include "PeerNetwork.h"
namespace eth
{
class PeerSession: public std::enable_shared_from_this<PeerSession>
{
friend class PeerServer;
public:
PeerSession(PeerServer* _server, bi::tcp::socket _socket, uint _rNId, bi::address _peerAddress, unsigned short _peerPort = 0);
~PeerSession();
void start();
void disconnect(int _reason);
void ping();
bool isOpen() const { return m_socket.is_open(); }
bi::tcp::endpoint endpoint() const; ///< for other peers to connect to.
private:
void dropped();
void doRead();
void doWrite(std::size_t length);
bool interpret(RLP const& _r);
/// @returns true iff the _msg forms a valid message for sending or receiving on the network.
static bool checkPacket(bytesConstRef _msg);
static RLPStream& prep(RLPStream& _s);
void sealAndSend(RLPStream& _s);
void sendDestroy(bytes& _msg);
void send(bytesConstRef _msg);
PeerServer* m_server;
bi::tcp::socket m_socket;
std::array<byte, 65536> m_data;
PeerInfo m_info;
Public m_id;
bytes m_incoming;
uint m_protocolVersion;
uint m_networkId;
uint m_reqNetworkId;
unsigned short m_listenPort; ///< Port that the remote client is listening on for connections. Useful for giving to peers.
uint m_caps;
std::chrono::steady_clock::time_point m_ping;
std::chrono::steady_clock::time_point m_connect;
std::chrono::steady_clock::time_point m_disconnect;
uint m_rating;
bool m_requireTransactions;
std::set<h256> m_knownBlocks;
std::set<h256> m_knownTransactions;
};
}