diff options
Diffstat (limited to 'src/declarative/qml/parser/qdeclarativejsmemorypool_p.h')
| -rw-r--r-- | src/declarative/qml/parser/qdeclarativejsmemorypool_p.h | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/src/declarative/qml/parser/qdeclarativejsmemorypool_p.h b/src/declarative/qml/parser/qdeclarativejsmemorypool_p.h deleted file mode 100644 index 22baff2254..0000000000 --- a/src/declarative/qml/parser/qdeclarativejsmemorypool_p.h +++ /dev/null @@ -1,173 +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 QDECLARATIVEJSMEMORYPOOL_P_H -#define QDECLARATIVEJSMEMORYPOOL_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. -// - -#include "qdeclarativejsglobal_p.h" - -#include <QtCore/qglobal.h> -#include <QtCore/qshareddata.h> -#include <QtCore/qdebug.h> - -#include <cstring> - -QT_QML_BEGIN_NAMESPACE - -namespace QDeclarativeJS { - -class QML_PARSER_EXPORT MemoryPool : public QSharedData -{ - MemoryPool(const MemoryPool &other); - void operator =(const MemoryPool &other); - -public: - MemoryPool() - : _blocks(0), - _allocatedBlocks(0), - _blockCount(-1), - _ptr(0), - _end(0) - { } - - ~MemoryPool() - { - if (_blocks) { - for (int i = 0; i < _allocatedBlocks; ++i) { - if (char *b = _blocks[i]) - qFree(b); - } - - qFree(_blocks); - } - } - - inline void *allocate(size_t size) - { - size = (size + 7) & ~7; - if (_ptr && (_ptr + size < _end)) { - void *addr = _ptr; - _ptr += size; - return addr; - } - return allocate_helper(size); - } - - void reset() - { - _blockCount = -1; - _ptr = _end = 0; - } - -private: - void *allocate_helper(size_t size) - { - Q_ASSERT(size < BLOCK_SIZE); - - if (++_blockCount == _allocatedBlocks) { - if (! _allocatedBlocks) - _allocatedBlocks = DEFAULT_BLOCK_COUNT; - else - _allocatedBlocks *= 2; - - _blocks = (char **) qRealloc(_blocks, sizeof(char *) * _allocatedBlocks); - - for (int index = _blockCount; index < _allocatedBlocks; ++index) - _blocks[index] = 0; - } - - char *&block = _blocks[_blockCount]; - - if (! block) - block = (char *) qMalloc(BLOCK_SIZE); - - _ptr = block; - _end = _ptr + BLOCK_SIZE; - - void *addr = _ptr; - _ptr += size; - return addr; - } - -private: - char **_blocks; - int _allocatedBlocks; - int _blockCount; - char *_ptr; - char *_end; - - enum - { - BLOCK_SIZE = 8 * 1024, - DEFAULT_BLOCK_COUNT = 8 - }; -}; - -class QML_PARSER_EXPORT Managed -{ - Managed(const Managed &other); - void operator = (const Managed &other); - -public: - Managed() {} - ~Managed() {} - - void *operator new(size_t size, MemoryPool *pool) { return pool->allocate(size); } - void operator delete(void *) {} - void operator delete(void *, MemoryPool *) {} -}; - -} // namespace QDeclarativeJS - -QT_QML_END_NAMESPACE - -#endif |