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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.
     **
     ** 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
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     **
     ** 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;
     }