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Diffstat (limited to 'src/declarative/qml/ftw/qrecyclepool_p.h')
| -rw-r--r-- | src/declarative/qml/ftw/qrecyclepool_p.h | 220 |
1 files changed, 0 insertions, 220 deletions
diff --git a/src/declarative/qml/ftw/qrecyclepool_p.h b/src/declarative/qml/ftw/qrecyclepool_p.h deleted file mode 100644 index ed0bbbdd27..0000000000 --- a/src/declarative/qml/ftw/qrecyclepool_p.h +++ /dev/null @@ -1,220 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/ -** -** This file is part of the QtDeclarative module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** GNU Lesser General Public License Usage -** 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. -** -** 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. -** -** Other Usage -** Alternatively, this file may be used in accordance with the terms and -** conditions contained in a signed written agreement between you and Nokia. -** -** -** -** -** -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef QRECYCLEPOOL_P_H -#define QRECYCLEPOOL_P_H - -// -// W A R N I N G -// ------------- -// -// This file is not part of the Qt API. It exists purely as an -// implementation detail. This header file may change from version to -// version without notice, or even be removed. -// -// We mean it. -// - -QT_BEGIN_NAMESPACE - -#define QRECYCLEPOOLCOOKIE 0x33218ADF - -template<typename T, int Step> -class QRecyclePoolPrivate -{ -public: - QRecyclePoolPrivate() - : recyclePoolHold(true), outstandingItems(0), cookie(QRECYCLEPOOLCOOKIE), - currentPage(0), nextAllocated(0) - { - } - - bool recyclePoolHold; - int outstandingItems; - quint32 cookie; - - struct PoolType : public T { - union { - QRecyclePoolPrivate<T, Step> *pool; - PoolType *nextAllocated; - }; - }; - - struct Page { - Page *nextPage; - unsigned int free; - union { - char array[Step * sizeof(PoolType)]; - qint64 q_for_alignment_1; - double q_for_alignment_2; - }; - }; - - Page *currentPage; - PoolType *nextAllocated; - - inline T *allocate(); - static inline void dispose(T *); - inline void releaseIfPossible(); -}; - -template<typename T, int Step = 1024> -class QRecyclePool -{ -public: - inline QRecyclePool(); - inline ~QRecyclePool(); - - inline T *New(); - template<typename T1> - inline T *New(const T1 &); - template<typename T1> - inline T *New(T1 &); - - static inline void Delete(T *); - -private: - QRecyclePoolPrivate<T, Step> *d; -}; - -template<typename T, int Step> -QRecyclePool<T, Step>::QRecyclePool() -: d(new QRecyclePoolPrivate<T, Step>()) -{ -} - -template<typename T, int Step> -QRecyclePool<T, Step>::~QRecyclePool() -{ - d->recyclePoolHold = false; - d->releaseIfPossible(); -} - -template<typename T, int Step> -T *QRecyclePool<T, Step>::New() -{ - T *rv = d->allocate(); - new (rv) T; - return rv; -} - -template<typename T, int Step> -template<typename T1> -T *QRecyclePool<T, Step>::New(const T1 &a) -{ - T *rv = d->allocate(); - new (rv) T(a); - return rv; -} - -template<typename T, int Step> -template<typename T1> -T *QRecyclePool<T, Step>::New(T1 &a) -{ - T *rv = d->allocate(); - new (rv) T(a); - return rv; -} - -template<typename T, int Step> -void QRecyclePool<T, Step>::Delete(T *t) -{ - t->~T(); - QRecyclePoolPrivate<T, Step>::dispose(t); -} - -template<typename T, int Step> -void QRecyclePoolPrivate<T, Step>::releaseIfPossible() -{ - if (recyclePoolHold || outstandingItems) - return; - - Page *p = currentPage; - while (p) { - Page *n = p->nextPage; - qFree(p); - p = n; - } - - delete this; -} - -template<typename T, int Step> -T *QRecyclePoolPrivate<T, Step>::allocate() -{ - PoolType *rv = 0; - if (nextAllocated) { - rv = nextAllocated; - nextAllocated = rv->nextAllocated; - } else if (currentPage && currentPage->free) { - rv = (PoolType *)(currentPage->array + (Step - currentPage->free) * sizeof(PoolType)); - currentPage->free--; - } else { - Page *p = (Page *)qMalloc(sizeof(Page)); - p->nextPage = currentPage; - p->free = Step; - currentPage = p; - - rv = (PoolType *)currentPage->array; - currentPage->free--; - } - - rv->pool = this; - ++outstandingItems; - return rv; -} - -template<typename T, int Step> -void QRecyclePoolPrivate<T, Step>::dispose(T *t) -{ - PoolType *pt = static_cast<PoolType *>(t); - Q_ASSERT(pt->pool && pt->pool->cookie == QRECYCLEPOOLCOOKIE); - - QRecyclePoolPrivate<T, Step> *This = pt->pool; - pt->nextAllocated = This->nextAllocated; - This->nextAllocated = pt; - --This->outstandingItems; - This->releaseIfPossible(); -} - -QT_END_NAMESPACE - -#endif // QRECYCLEPOOL_P_H |