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

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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;
 }


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Qt 4.3.5