threadlocal.hpp

/* Copyright (c) 2014, The Nuria Project
 * This software is provided 'as-is', without any express or implied
 * warranty. In no event will the authors be held liable for any damages
 * arising from the use of this software.
 * Permission is granted to anyone to use this software for any purpose,
 * including commercial applications, and to alter it and redistribute it
 * freely, subject to the following restrictions:
 *    1. The origin of this software must not be misrepresented; you must not
 *       claim that you wrote the original software. If you use this software
 *       in a product, an acknowledgment in the product documentation would be
 *       appreciated but is not required.
 *    2. Altered source versions must be plainly marked as such, and must not be
 *       misrepresented as being the original software.
 *    3. This notice may not be removed or altered from any source
 *       distribution.
 */

#ifndef NURIA_THREADLOCAL_HPP
#define NURIA_THREADLOCAL_HPP

#include <QThreadStorage>

#define NURIA_THREAD_GLOBAL_STATIC(Type, Name)                    \
    static Type *Name () {                                    \
        static QThreadStorage< Type * > storage;          \
        if (!storage.hasLocalData ()) {                   \
            storage.setLocalData (new Type);          \
        }                                                 \
        return storage.localData ();                      \
    }

#define NURIA_THREAD_GLOBAL_STATIC_WITH_ARGS(Type, Name, Args)    \
    static Type *Name () {                                    \
        static QThreadStorage< Type * > storage;          \
        if (!storage.hasLocalData ()) {                   \
            storage.setLocalData (new Type Args);     \
        }                                                 \
        return storage.localData ();                      \
    }

#define NURIA_THREAD_GLOBAL_STATIC_WITH_INIT(Type, Name, Method)  \
    static Type *Name () {                                    \
        static QThreadStorage< Type * > storage;          \
        if (!storage.hasLocalData ()) {                   \
            storage.setLocalData (Method ());         \
        }                                                 \
        return storage.localData ();                      \
    }

#endif // NURIA_THREADLOCAL_HPP