- Qt 5.5
- Qt Network
- Torrent Example
- torrentserver.cpp Example File
- Qt 5.5.1 Reference Documentation

# torrentserver.cpp Example File

torrent/torrentserver.cpp

    /****************************************************************************
    **
    ** Copyright (C) 2015 The Qt Company Ltd.
    ** Contact: http://www.qt.io/licensing/
    **
    ** This file is part of the examples of the Qt Toolkit.
    **
    ** $QT_BEGIN_LICENSE:BSD$
    ** You may use this file under the terms of the BSD license as follows:
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    #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(qintptr socketDescriptor)
    {
        PeerWireClient *client =
            new PeerWireClient(ConnectionManager::instance()->clientId(), this);

        if (client->setSocketDescriptor(socketDescriptor)) {
            if (ConnectionManager::instance()->canAddConnection() && !clients.isEmpty()) {
                connect(client, SIGNAL(infoHashReceived(QByteArray)),
                        this, SLOT(processInfoHash(QByteArray)));
                connect(client, SIGNAL(error(QAbstractSocket::SocketError)),
                        this, SLOT(removeClient()));
                RateController::instance()->addSocket(client);
                ConnectionManager::instance()->addConnection(client);
                return;
            }
        }
        client->abort();
        delete client;
    }

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

    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();
    }