/****************************************************************************

**

** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (qt-info@nokia.com)

**

** This file is part of the Qt Mobility Components.

**

** $QT_BEGIN_LICENSE:LGPL$

** 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 Technology Preview License Agreement accompanying

** this package.

**

** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

** Nokia at qt-info@nokia.com.

**

**

**

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**

**

**

** $QT_END_LICENSE$

**

****************************************************************************/

#ifndef QMESSAGINGGLOBAL_H

#define QMESSAGINGGLOBAL_H

#include <qmobilityglobal.h>

// A variant of Q_GLOBAL_STATIC for use in class scope

#define Q_SCOPED_STATIC_DECLARE(TYPE, NAME)                      \

    static TYPE *NAME();

#if defined(QT_NO_THREAD)

#  define Q_SCOPED_STATIC_DEFINE(TYPE, SCOPE, NAME)              \

    TYPE *SCOPE::NAME()                                          \

    {                                                            \

        static TYPE this_##NAME;                                 \

        static QGlobalStatic<TYPE > global_##NAME(&this_##NAME); \

        return global_##NAME.pointer;                            \

    }

#  else

#  define Q_SCOPED_STATIC_DEFINE(TYPE, SCOPE, NAME)                     \

    Q_GLOBAL_STATIC_INIT(TYPE, NAME);                                   \

    TYPE *SCOPE::NAME()                                                 \

    {                                                                   \

        if (!this_##NAME.pointer && !this_##NAME.destroyed) {           \

            TYPE *x = new TYPE;                                         \

            if (!this_##NAME.pointer.testAndSetOrdered(0, x))           \

                delete x;                                               \

            else                                                        \

                static QGlobalStaticDeleter<TYPE > cleanup(this_##NAME); \

        }                                                               \

        return this_##NAME.pointer;                                     \

    }

#endif

#endif // QMESSAGINGGLOBAL_H