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84e3414d7c
Added recalloc. _expand should be replaced as well in the nearby future. The functions should override the _xxxx_base variants instead, and be moved to a separate lib to cover the executable globally.
56 lines
1.7 KiB
C++
56 lines
1.7 KiB
C++
#ifndef MEMSTD_H
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#define MEMSTD_H
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extern "C" void* R_malloc(size_t nSize);
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extern "C" void R_free(void* pBlock);
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extern "C" void* R_realloc(void* pBlock, size_t nSize);
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extern "C" char* R_strdup(const char* pString);
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extern "C" void* R_calloc(size_t nCount, size_t nSize);
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extern "C" size_t R_mallocsize(void* pBlock);
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// Shadow standard implementation with ours.
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#define malloc(nSize) R_malloc(nSize)
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#define free(pBlock) R_free(pBlock)
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#define realloc(pBlock, nSize) R_realloc(pBlock, nSize)
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#define strdup(pString) R_strdup(pString)
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#define calloc(nCount, nSize) R_calloc(nCount, nSize)
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#define recalloc(pBlock, nSize) R_recalloc(pBlock, nSize)
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#define mallocsize(pBlock) R_mallocsize(pBlock)
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class IMemAlloc
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{
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public:
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// Same functions internally.
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virtual void* InternalAlloc(size_t nSize/*, const char* pFileName, int nLine*/) = 0;
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virtual void* Alloc(size_t nSize) = 0;
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// Same functions internally.
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virtual void* InternalRealloc(void* pMem, size_t nSize/*, const char* pFileName, int nLine*/) = 0;
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virtual void* Realloc(void* pMem, size_t nSize) = 0;
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// Same as Free, but takes debug parameters.
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virtual void InternalFree(void* pMem, const char* pFileName, int nLine) = 0;
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virtual void Free(void* pMem) = 0;
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virtual size_t GetSize(void* pMem) = 0;
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};
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//-----------------------------------------------------------------------------
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//
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//-----------------------------------------------------------------------------
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class CStdMemAlloc : public IMemAlloc{};
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inline CStdMemAlloc* (*CreateGlobalMemAlloc)() = nullptr;
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inline CStdMemAlloc* g_pMemAllocSingleton = nullptr;
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inline IMemAlloc* MemAllocSingleton()
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{
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if (!g_pMemAllocSingleton)
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{
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g_pMemAllocSingleton = CreateGlobalMemAlloc();
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}
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return g_pMemAllocSingleton;
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}
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#endif // MEMSTD_H
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