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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188//// malloc.h//// Copyright (c) Microsoft Corporation. All rights reserved.//// The memory allocation library.//#pragma once#ifndef _INC_MALLOC // include guard for 3rd party interop#define _INC_MALLOC
#include <corecrt.h>#include <corecrt_malloc.h>
#pragma warning(push)#pragma warning(disable: _UCRT_DISABLED_WARNINGS)_UCRT_DISABLE_CLANG_WARNINGS
_CRT_BEGIN_C_HEADER
// Maximum heap request the heap manager will attempt#ifdef _WIN64 #define _HEAP_MAXREQ 0xFFFFFFFFFFFFFFE0#else #define _HEAP_MAXREQ 0xFFFFFFE0#endif
// Constants for _heapchk and _heapwalk routines#define _HEAPEMPTY (-1)#define _HEAPOK (-2)#define _HEAPBADBEGIN (-3)#define _HEAPBADNODE (-4)#define _HEAPEND (-5)#define _HEAPBADPTR (-6)#define _FREEENTRY 0#define _USEDENTRY 1
typedef struct _heapinfo{ int* _pentry; size_t _size; int _useflag;} _HEAPINFO;
#define _mm_free(a) _aligned_free(a)#define _mm_malloc(a, b) _aligned_malloc(a, b)
#if defined(__GNUC__) || defined(__clang__)#define _alloca(x) __builtin_alloca((x))#else_Ret_notnull_ _Post_writable_byte_size_(_Size)void* __cdecl _alloca(_In_ size_t _Size);#endif
#if !defined __midl && !defined RC_INVOKED
_ACRTIMP intptr_t __cdecl _get_heap_handle(void);
_Check_return_ _DCRTIMP int __cdecl _heapmin(void);
#if defined _DEBUG || defined _CRT_USE_WINAPI_FAMILY_DESKTOP_APP || defined _CORECRT_BUILD _ACRTIMP int __cdecl _heapwalk(_Inout_ _HEAPINFO* _EntryInfo); #endif
#if defined _CRT_USE_WINAPI_FAMILY_DESKTOP_APP || defined _CRT_USE_WINAPI_FAMILY_GAMES _Check_return_ _DCRTIMP int __cdecl _heapchk(void); #endif
_DCRTIMP int __cdecl _resetstkoflw(void);
#define _ALLOCA_S_THRESHOLD 1024 #define _ALLOCA_S_STACK_MARKER 0xCCCC #define _ALLOCA_S_HEAP_MARKER 0xDDDD
#ifdef _WIN64 #define _ALLOCA_S_MARKER_SIZE 16 #else #define _ALLOCA_S_MARKER_SIZE 8 #endif
_STATIC_ASSERT(sizeof(unsigned int) <= _ALLOCA_S_MARKER_SIZE);
#pragma warning(push) #pragma warning(disable: 6540) // C6540: attribute annotations on this function will invalidate all // of its existing __declspec annotations
__inline void* _MarkAllocaS(_Out_opt_ __crt_typefix(unsigned int*) void* _Ptr, unsigned int _Marker) { if (_Ptr) { *((unsigned int*)_Ptr) = _Marker; _Ptr = (char*)_Ptr + _ALLOCA_S_MARKER_SIZE; } return _Ptr; }
__inline size_t _MallocaComputeSize(size_t _Size) { size_t _MarkedSize = _Size + _ALLOCA_S_MARKER_SIZE; return _MarkedSize > _Size ? _MarkedSize : 0; }
#pragma warning(pop)
#endif
#ifdef _DEBUG// C6255: _alloca indicates failure by raising a stack overflow exception// C6386: buffer overrun #ifndef _CRTDBG_MAP_ALLOC #undef _malloca #define _malloca(size) \ __pragma(warning(suppress: 6255 6386)) \ (_MallocaComputeSize(size) != 0 \ ? _MarkAllocaS(malloc(_MallocaComputeSize(size)), _ALLOCA_S_HEAP_MARKER) \ : NULL) #endif
#else
#undef _malloca #define _malloca(size) \ __pragma(warning(suppress: 6255 6386)) \ (_MallocaComputeSize(size) != 0 \ ? (((_MallocaComputeSize(size) <= _ALLOCA_S_THRESHOLD) \ ? _MarkAllocaS(_alloca(_MallocaComputeSize(size)), _ALLOCA_S_STACK_MARKER) \ : _MarkAllocaS(malloc(_MallocaComputeSize(size)), _ALLOCA_S_HEAP_MARKER))) \ : NULL)
#endif
#if defined __midl && !defined RC_INVOKED#elif defined _DEBUG && defined _CRTDBG_MAP_ALLOC#else
#undef _freea
#pragma warning(push) #pragma warning(disable: 6014) // leaking memory __inline void __CRTDECL _freea(_Pre_maybenull_ _Post_invalid_ void* _Memory) { unsigned int _Marker; if (_Memory) { _Memory = (char*)_Memory - _ALLOCA_S_MARKER_SIZE; _Marker = *(unsigned int*)_Memory; if (_Marker == _ALLOCA_S_HEAP_MARKER) { free(_Memory); } #ifdef _ASSERTE else if (_Marker != _ALLOCA_S_STACK_MARKER) { _ASSERTE(("Corrupted pointer passed to _freea" && 0)); } #endif } } #pragma warning(pop)
#endif
#if defined(_CRT_INTERNAL_NONSTDC_NAMES) && _CRT_INTERNAL_NONSTDC_NAMES #define alloca _alloca#endif
_CRT_END_C_HEADER_UCRT_RESTORE_CLANG_WARNINGS#pragma warning(pop) // _UCRT_DISABLED_WARNINGS#endif // _INC_MALLOC