memorypool.h
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上传日期:2022-07-26
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- // memorypool.h
- //
- // A simple, sequential allocator with zero overhead for allocating
- // and freeing objects.
- //
- // Copyright (C) 2008, the Celestia Development Team
- // Initial version by Chris Laurel <claurel@gmail.com>
- //
- // This program is free software; you can redistribute it and/or
- // modify it under the terms of the GNU General Public License
- // as published by the Free Software Foundation; either version 2
- // of the License, or (at your option) any later version.
- #ifndef _CELUTIL_MEMORYPOOL_H_
- #define _CELUTIL_MEMORYPOOL_H_
- #include <list>
- class MemoryPool
- {
- public:
- MemoryPool(unsigned int alignment, unsigned int blockSize);
- ~MemoryPool();
-
- void* allocate(unsigned int size);
- void freeAll();
-
- unsigned int blockSize() const;
- unsigned int alignment() const;
-
- private:
- unsigned int m_alignment;
- unsigned int m_blockSize;
- struct Block
- {
- char* m_memory;
- };
-
- std::list<Block> m_blockList;
- std::list<Block>::iterator m_currentBlock;
- unsigned int m_blockOffset;
- };
- #endif // _CELUTIL_MEMORYPOOL_H_