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/***************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Qt Software Information (qt-info@nokia.com)
**
**
** Non-Open Source Usage
**
** Licensees may use this file in accordance with the Qt Beta Version
** License Agreement, Agreement version 2.2 provided with the Software or,
** alternatively, in accordance with the terms contained in a written
** agreement between you and Nokia.
**
** GNU General Public License Usage
**
** Alternatively, this file may be used under the terms of the GNU General
** Public License versions 2.0 or 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 GNU
** General Public Licensing requirements will be met:
**
** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
** http://www.gnu.org/copyleft/gpl.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt GPL Exception
** version 1.2, included in the file GPL_EXCEPTION.txt in this package.
**
***************************************************************************/
***************************************************************************/
// Copyright (c) 2008 Roberto Raggi <roberto.raggi@gmail.com>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#ifndef CPLUSPLUS_MEMORYPOOL_H
#define CPLUSPLUS_MEMORYPOOL_H
#include "CPlusPlusForwardDeclarations.h"
#include <cstddef>
CPLUSPLUS_BEGIN_HEADER
CPLUSPLUS_BEGIN_NAMESPACE
class CPLUSPLUS_EXPORT MemoryPool
{
MemoryPool(const MemoryPool &other);
void operator =(const MemoryPool &other);
public:
MemoryPool();
~MemoryPool();
bool initializeAllocatedMemory() const;
void setInitializeAllocatedMemory(bool initializeAllocatedMemory);
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);
}
private:
void *allocate_helper(size_t size);
private:
bool _initializeAllocatedMemory;
char **_blocks;
int _allocatedBlocks;
int _blockCount;
char *ptr, *end;
enum
{
BLOCK_SIZE = 8 * 1024,
DEFAULT_BLOCK_COUNT = 8
};
};
CPLUSPLUS_END_NAMESPACE
CPLUSPLUS_END_HEADER
#endif // CPLUSPLUS_MEMORYPOOL_H
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