Cyd
2b8ca921cb
Complete disaster-recovery snapshot: engine/game source, game data assets, VC6 toolchain + DX SDKs, build outputs, deployed game, and _UNUSED archive. Large binaries in Git LFS; text preserved byte-for-byte (core.autocrlf=false, no eol attributes). See RECOVERY.md for the one-clone rebuild procedure.
78 lines
2.0 KiB
C++
78 lines
2.0 KiB
C++
// fixalloc.h - declarations for fixed block allocator
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#ifndef __FIXALLOC_H__
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#define __FIXALLOC_H__
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#include "afxplex_.h"
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/////////////////////////////////////////////////////////////////////////////
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// CFixedAlloc
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class CFixedAlloc
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{
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// Constructors
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public:
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CFixedAlloc(UINT nAllocSize, UINT nBlockSize = 64);
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// Attributes
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UINT GetAllocSize() { return m_nAllocSize; }
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// Operations
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public:
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void* Alloc(); // return a chunk of memory of nAllocSize
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void Free(void* p); // free chunk of memory returned from Alloc
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void FreeAll(); // free everything allocated from this allocator
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// Implementation
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public:
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~CFixedAlloc();
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protected:
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struct CNode
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{
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CNode* pNext; // only valid when in free list
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};
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UINT m_nAllocSize; // size of each block from Alloc
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UINT m_nBlockSize; // number of blocks to get at a time
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CPlex* m_pBlocks; // linked list of blocks (is nBlocks*nAllocSize)
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CNode* m_pNodeFree; // first free node (NULL if no free nodes)
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CRITICAL_SECTION m_protect;
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};
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#ifndef _DEBUG
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// DECLARE_FIXED_ALLOC -- used in class definition
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#define DECLARE_FIXED_ALLOC(class_name) \
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public: \
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void* operator new(size_t size) \
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{ \
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ASSERT(size == s_alloc.GetAllocSize()); \
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UNUSED(size); \
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return s_alloc.Alloc(); \
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} \
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void* operator new(size_t, void* p) \
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{ return p; } \
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void operator delete(void* p) { s_alloc.Free(p); } \
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void* operator new(size_t size, LPCSTR, int) \
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{ \
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ASSERT(size == s_alloc.GetAllocSize()); \
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UNUSED(size); \
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return s_alloc.Alloc(); \
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} \
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protected: \
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static CFixedAlloc s_alloc \
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// IMPLEMENT_FIXED_ALLOC -- used in class implementation file
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#define IMPLEMENT_FIXED_ALLOC(class_name, block_size) \
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CFixedAlloc class_name::s_alloc(sizeof(class_name), block_size) \
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#else //!_DEBUG
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#define DECLARE_FIXED_ALLOC(class_name) // nothing in debug
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#define IMPLEMENT_FIXED_ALLOC(class_name, block_size) // nothing in debug
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#endif //!_DEBUG
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#endif
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