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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 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 the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtNetwork>
#include "fortunethread.h"
FortuneThread::FortuneThread(QObject *parent)
: QThread(parent), quit(false)
{
}
//! [0]
FortuneThread::~FortuneThread()
{
mutex.lock();
quit = true;
cond.wakeOne();
mutex.unlock();
wait();
}
//! [0]
//! [1] //! [2]
void FortuneThread::requestNewFortune(const QString &hostName, quint16 port)
{
//! [1]
QMutexLocker locker(&mutex);
this->hostName = hostName;
this->port = port;
//! [3]
if (!isRunning())
start();
else
cond.wakeOne();
}
//! [2] //! [3]
//! [4]
void FortuneThread::run()
{
mutex.lock();
//! [4] //! [5]
QString serverName = hostName;
quint16 serverPort = port;
mutex.unlock();
//! [5]
//! [6]
while (!quit) {
//! [7]
const int Timeout = 5 * 1000;
QTcpSocket socket;
socket.connectToHost(serverName, serverPort);
//! [6] //! [8]
if (!socket.waitForConnected(Timeout)) {
emit error(socket.error(), socket.errorString());
return;
}
//! [8] //! [9]
while (socket.bytesAvailable() < (int)sizeof(quint16)) {
if (!socket.waitForReadyRead(Timeout)) {
emit error(socket.error(), socket.errorString());
return;
}
//! [9] //! [10]
}
//! [10] //! [11]
quint16 blockSize;
QDataStream in(&socket);
in.setVersion(QDataStream::Qt_4_0);
in >> blockSize;
//! [11] //! [12]
while (socket.bytesAvailable() < blockSize) {
if (!socket.waitForReadyRead(Timeout)) {
emit error(socket.error(), socket.errorString());
return;
}
//! [12] //! [13]
}
//! [13] //! [14]
mutex.lock();
QString fortune;
in >> fortune;
emit newFortune(fortune);
//! [7] //! [14] //! [15]
cond.wait(&mutex);
serverName = hostName;
serverPort = port;
mutex.unlock();
}
//! [15]
}
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