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# connectionmanager.cpp Example File

network/torrent/connectionmanager.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.
     **
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     #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%04x-", (QT_VERSION % 0xffff00) >> 8);
             id += s.toLatin1();
             id += QByteArray::number(startupTime, 10);
             id += QByteArray(20 - id.size(), '-');
         }
         return id;
     }