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torrentserver.cpp

/****************************************************************************
**
** Copyright (C) 2004-2006 Trolltech AS. All rights reserved.
**
** This file is part of the example classes of the Qt Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of
** this file.  Please review the following information to ensure GNU
** General Public Licensing requirements will be met:
** http://www.trolltech.com/products/qt/opensource.html
**
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://www.trolltech.com/products/qt/licensing.html or contact the
** sales department at sales@trolltech.com.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
****************************************************************************/

#include "connectionmanager.h"
#include "peerwireclient.h"
#include "ratecontroller.h"
#include "torrentclient.h"
#include "torrentserver.h"

Q_GLOBAL_STATIC(TorrentServer, torrentServer)

TorrentServer *TorrentServer::instance()
{
    return torrentServer();
}

void TorrentServer::addClient(TorrentClient *client)
{
    clients << client;
}

void TorrentServer::removeClient(TorrentClient *client)
{
    clients.removeAll(client);
}

void TorrentServer::incomingConnection(int socketDescriptor)
{
    PeerWireClient *client = new PeerWireClient(ConnectionManager::instance()->clientId(), this);
    if (clients.isEmpty())
        client->abort();

    if (ConnectionManager::instance()->canAddConnection()) {
        if (client->setSocketDescriptor(socketDescriptor)) {
            connect(client, SIGNAL(infoHashReceived(const QByteArray &)),
                    this, SLOT(processInfoHash(const QByteArray &)));
            connect(client, SIGNAL(error(QAbstractSocket::SocketError)),
                    this, SLOT(removeClient()));
            RateController::instance()->addSocket(client);
            ConnectionManager::instance()->addConnection(client);
            if (clients.size() == 1) {
                client->disconnect(client, 0, this, 0);
                clients.first()->setupIncomingConnection(client);
            }
            return;
        }
    }

    delete client;
}

void TorrentServer::removeClient()
{
    PeerWireClient *peer = qobject_cast<PeerWireClient *>(sender());
    peer->deleteLater();
    RateController::instance()->removeSocket(peer);
    ConnectionManager::instance()->removeConnection(peer);
}

void TorrentServer::processInfoHash(const QByteArray &infoHash)
{
    PeerWireClient *peer = qobject_cast<PeerWireClient *>(sender());
    foreach (TorrentClient *client, clients) {
        if (client->state() >= TorrentClient::Searching && client->infoHash() == infoHash) {
            peer->disconnect(peer, 0, this, 0);
            client->setupIncomingConnection(peer);
            return;
        }
    }
    removeClient();
}

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