Peer.cpp

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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/>.
*/
#include "Peer.h"
using namespace std;
using namespace dev;
using namespace dev::p2p;

namespace dev
{

namespace p2p
{

bool Peer::shouldReconnect() const
{
        return id && endpoint && chrono::system_clock::now() > m_lastAttempted + chrono::seconds(fallbackSeconds());
}
        
unsigned Peer::fallbackSeconds() const
{
        if (peerType == PeerType::Required)
                return 5;
        switch (m_lastDisconnect)
        {
        case BadProtocol:
                return 30 * (m_failedAttempts + 1);
        case UselessPeer:
        case TooManyPeers:
                return 25 * (m_failedAttempts + 1);
        case ClientQuit:
                return 15 * (m_failedAttempts + 1);
        case NoDisconnect:
        default:
                if (m_failedAttempts < 5)
                        return m_failedAttempts ? m_failedAttempts * 5 : 5;
                else if (m_failedAttempts < 15)
                        return 25 + (m_failedAttempts - 5) * 10;
                else
                        return 25 + 100 + (m_failedAttempts - 15) * 20;
        }
}
        
bool Peer::operator<(Peer const& _p) const
{
        if (isOffline() != _p.isOffline())
                return isOffline();
        else if (isOffline())
                if (m_lastAttempted == _p.m_lastAttempted)
                        return m_failedAttempts < _p.m_failedAttempts;
                else
                        return m_lastAttempted < _p.m_lastAttempted;
                else
                        if (m_score == _p.m_score)
                                if (m_rating == _p.m_rating)
                                        if (m_failedAttempts == _p.m_failedAttempts)
                                                return id < _p.id;
                                        else
                                                return m_failedAttempts < _p.m_failedAttempts;
                                        else
                                                return m_rating < _p.m_rating;
                                        else
                                                return m_score < _p.m_score;
}

}
}