54 lines
879 B
C
54 lines
879 B
C
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/*
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* Fixed-Size Small Block Allocator
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*/
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#ifndef DUI_BASE_SBALLOC_H_INCLUDED
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#define DUI_BASE_SBALLOC_H_INCLUDED
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#pragma once
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#include "duialloc.h"
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namespace DirectUI
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{
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#define SBALLOC_FILLCHAR 0xFE
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struct ISBLeak // Leak detector, not ref counted
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{
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virtual void AllocLeak(void* pBlock) = 0;
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};
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struct SBSection
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{
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SBSection* pNext;
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BYTE* pData;
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};
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class SBAlloc
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{
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public:
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static HRESULT Create(UINT uBlockSize, UINT uBlocksPerSection, ISBLeak* pisbLeak, SBAlloc** ppSBA);
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void Destroy();
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void* Alloc();
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void Free(void* pBlock);
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SBAlloc() { }
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virtual ~SBAlloc();
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private:
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bool _FillStack();
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UINT _uBlockSize;
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UINT _uBlocksPerSection;
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SBSection* _pSections;
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BYTE** _ppStack; // Free block cache
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int _dStackPtr;
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ISBLeak* _pisbLeak;
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};
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} // namespace DirectUI
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#endif // DUI_BASE_SBALLOC_H_INCLUDED
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