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 #include &lt;QtNetwork&gt;

 #include &quot;fortunethread.h&quot;

 FortuneThread::FortuneThread(QObject *parent)
     : QThread(parent), quit(false)
 {
 }

 FortuneThread::~FortuneThread()
 {
     mutex.lock();
     quit = true;
     cond.wakeOne();
     mutex.unlock();
     wait();
 }

 void FortuneThread::requestNewFortune(const QString &amp;hostName, quint16 port)
 {
     QMutexLocker locker(&amp;mutex);
     this-&gt;hostName = hostName;
     this-&gt;port = port;
     if (!isRunning())
         start();
     else
         cond.wakeOne();
 }

 void FortuneThread::run()
 {
     mutex.lock();
     QString serverName = hostName;
     quint16 serverPort = port;
     mutex.unlock();

     while (!quit) {
         const int Timeout = 5 * 1000;

         QTcpSocket socket;
         socket.connectToHost(serverName, serverPort);

         if (!socket.waitForConnected(Timeout)) {
             emit error(socket.error(), socket.errorString());
             return;
         }

         while (socket.bytesAvailable() &lt; (int)sizeof(quint16)) {
             if (!socket.waitForReadyRead(Timeout)) {
                 emit error(socket.error(), socket.errorString());
                 return;
             }
         }

         quint16 blockSize;
         QDataStream in(&amp;socket);
         in.setVersion(QDataStream::Qt_4_0);
         in &gt;&gt; blockSize;

         while (socket.bytesAvailable() &lt; blockSize) {
             if (!socket.waitForReadyRead(Timeout)) {
                 emit error(socket.error(), socket.errorString());
                 return;
             }
         }

         mutex.lock();
         QString fortune;
         in &gt;&gt; fortune;
         emit newFortune(fortune);

         cond.wait(&amp;mutex);
         serverName = hostName;
         serverPort = port;
         mutex.unlock();
     }
 }</pre>
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