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connectionmanager.cpp Example File
network/torrent/connectionmanager.cpp

    /****************************************************************************
    **
    ** Copyright (C) 2004-2006 Trolltech ASA. All rights reserved.
    **
    ** This file is part of the example classes of the Qt Toolkit.
    **
    ** Licensees holding valid Qt Preview licenses may use this file in
    ** accordance with the Qt Preview License Agreement provided with the
    ** Software.
    **
    ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
    ** information about Qt Commercial License Agreements.
    **
    ** Contact info@trolltech.com if any conditions of this licensing are
    ** not clear to you.
    **
    ** 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 <QByteArray>
    #include <QDateTime>

    static const int MaxConnections = 250;

    Q_GLOBAL_STATIC(ConnectionManager, connectionManager)

    ConnectionManager *ConnectionManager::instance()
    {
        return connectionManager();
    }

    bool ConnectionManager::canAddConnection() const
    {
        return (connections.size() < MaxConnections);
    }

    void ConnectionManager::addConnection(PeerWireClient *client)
    {
        connections << client;
    }

    void ConnectionManager::removeConnection(PeerWireClient *client)
    {
        connections.remove(client);
    }

    int ConnectionManager::maxConnections() const
    {
        return MaxConnections;
    }

    QByteArray ConnectionManager::clientId() const
    {
        if (id.isEmpty()) {
            // Generate peer id
            int startupTime = int(QDateTime::currentDateTime().toTime_t());

            QString s;
            s.sprintf("-QT%06x", QT_VERSION);
            id += s.toLatin1();
            id += QByteArray::number(startupTime, 16);
            id += QByteArray(20 - id.size(), '-');
        }
        return id;
    }


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Qt 4.2.0-tp1