/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation 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 <QCache>
#include <QMutex>
#include <QThreadStorage>

#include "threads.h"

//! [0]
void MyThread::run()
//! [0] //! [1]
{
//! [1] //! [2]
}
//! [2]

#define Counter ReentrantCounter

//! [3]
class Counter
//! [3] //! [4]
{
public:
    Counter() { n = 0; }

    void increment() { ++n; }
    void decrement() { --n; }
    int value() const { return n; }

private:
    int n;
};
//! [4]

#undef Counter
#define Counter ThreadSafeCounter

//! [5]
class Counter
//! [5] //! [6]
{
public:
    Counter() { n = 0; }

    void increment() { QMutexLocker locker(&mutex); ++n; }
    void decrement() { QMutexLocker locker(&mutex); --n; }
    int value() const { QMutexLocker locker(&mutex); return n; }

private:
    mutable QMutex mutex;
    int n;
};
//! [6]

typedef int SomeClass;

//! [7]
QThreadStorage<QCache<QString, SomeClass> *> caches;

void cacheObject(const QString &key, SomeClass *object)
//! [7] //! [8]
{
    if (!caches.hasLocalData())
        caches.setLocalData(new QCache<QString, SomeClass>);

    caches.localData()->insert(key, object);
}

void removeFromCache(const QString &key)
//! [8] //! [9]
{
    if (!caches.hasLocalData())
        return;

    caches.localData()->remove(key);
}
//! [9]

int main()
{
    return 0;
}