Peer.h

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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/>.
*/
#pragma once

#include "Common.h"

namespace dev
{

namespace p2p
{

class Peer: public Node
{
        friend class Session;           
        friend class Host;              

        friend class RLPXHandshake;

public:
        Peer(Node const& _node): Node(_node) {}
        
        bool isOffline() const { return !m_session.lock(); }

        virtual bool operator<(Peer const& _p) const;
        
        int rating() const { return m_rating; }
        
        bool shouldReconnect() const;
        
        int failedAttempts() const { return m_failedAttempts; }

        DisconnectReason lastDisconnect() const { return m_lastDisconnect; }
        
        void noteSessionGood() { m_failedAttempts = 0; }
        
protected:
        unsigned fallbackSeconds() const;

        int m_score = 0;                                                                        
        int m_rating = 0;                                                                       
        
        
        std::chrono::system_clock::time_point m_lastConnected;
        std::chrono::system_clock::time_point m_lastAttempted;
        unsigned m_failedAttempts = 0;
        DisconnectReason m_lastDisconnect = NoDisconnect;       

        std::weak_ptr<Session> m_session;
};
using Peers = std::vector<Peer>;

}
}