295 lines
11 KiB
C
295 lines
11 KiB
C
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/***
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*malloc.h - declarations and definitions for memory allocation functions
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*
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* Copyright (c) Microsoft Corporation. All rights reserved.
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*
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*Purpose:
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* Contains the function declarations for memory allocation functions;
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* also defines manifest constants and types used by the heap routines.
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* [System V]
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*
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* [Public]
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*
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****/
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#pragma once
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#ifndef _INC_MALLOC
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#define _INC_MALLOC
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#include <crtdefs.h>
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/*
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* Currently, all MS C compilers for Win32 platforms default to 8 byte
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* alignment.
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*/
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#pragma pack(push,_CRT_PACKING)
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/* Maximum heap request the heap manager will attempt */
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#ifdef _WIN64
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#define _HEAP_MAXREQ 0xFFFFFFFFFFFFFFE0
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#else /* _WIN64 */
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#define _HEAP_MAXREQ 0xFFFFFFE0
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#endif /* _WIN64 */
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/* _STATIC_ASSERT is for enforcing boolean/integral conditions at compile time. */
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#ifndef _STATIC_ASSERT
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#define _STATIC_ASSERT(expr) typedef char __static_assert_t[ (expr) ]
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#endif /* _STATIC_ASSERT */
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/* Constants for _heapchk/_heapset/_heapwalk routines */
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#define _HEAPEMPTY (-1)
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#define _HEAPOK (-2)
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#define _HEAPBADBEGIN (-3)
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#define _HEAPBADNODE (-4)
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#define _HEAPEND (-5)
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#define _HEAPBADPTR (-6)
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#define _FREEENTRY 0
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#define _USEDENTRY 1
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#ifndef _HEAPINFO_DEFINED
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typedef struct _heapinfo {
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int * _pentry;
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size_t _size;
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int _useflag;
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} _HEAPINFO;
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#define _HEAPINFO_DEFINED
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#endif /* _HEAPINFO_DEFINED */
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#define _mm_free(a) _aligned_free(a)
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#define _mm_malloc(a, b) _aligned_malloc(a, b)
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/* Function prototypes */
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#if defined (_DEBUG) && defined (_CRTDBG_MAP_ALLOC)
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#pragma push_macro("calloc")
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#pragma push_macro("free")
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#pragma push_macro("malloc")
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#pragma push_macro("realloc")
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#pragma push_macro("_recalloc")
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#pragma push_macro("_aligned_free")
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#pragma push_macro("_aligned_malloc")
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#pragma push_macro("_aligned_offset_malloc")
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#pragma push_macro("_aligned_realloc")
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#pragma push_macro("_aligned_recalloc")
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#pragma push_macro("_aligned_offset_realloc")
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#pragma push_macro("_aligned_offset_recalloc")
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#pragma push_macro("_aligned_msize")
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#pragma push_macro("_freea")
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#undef calloc
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#undef free
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#undef malloc
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#undef realloc
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#undef _recalloc
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#undef _aligned_free
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#undef _aligned_malloc
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#undef _aligned_offset_malloc
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#undef _aligned_realloc
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#undef _aligned_recalloc
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#undef _aligned_offset_realloc
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#undef _aligned_offset_recalloc
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#undef _aligned_msize
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#undef _freea
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#endif /* defined (_DEBUG) && defined (_CRTDBG_MAP_ALLOC) */
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#ifndef _CRT_ALLOCATION_DEFINED
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#define _CRT_ALLOCATION_DEFINED
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_Check_return_ _Ret_maybenull_ _Post_writable_byte_size_(_Count*_Size) _CRTIMP _CRT_JIT_INTRINSIC _CRTNOALIAS _CRTRESTRICT void * __cdecl calloc(_In_ _CRT_GUARDOVERFLOW size_t _Count, _In_ _CRT_GUARDOVERFLOW size_t _Size);
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_CRTIMP _CRTNOALIAS void __cdecl free(_Pre_maybenull_ _Post_invalid_ void * _Memory);
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_Check_return_ _Ret_maybenull_ _Post_writable_byte_size_(_Size) _CRTIMP _CRT_JIT_INTRINSIC _CRTNOALIAS _CRTRESTRICT void * __cdecl malloc(_In_ _CRT_GUARDOVERFLOW size_t _Size);
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_Success_(return!=0)
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_Check_return_ _Ret_maybenull_ _Post_writable_byte_size_(_NewSize) _CRTIMP _CRTNOALIAS _CRTRESTRICT void * __cdecl realloc(_Pre_maybenull_ _Post_invalid_ void * _Memory, _In_ _CRT_GUARDOVERFLOW size_t _NewSize);
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_Success_(return!=0)
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_Check_return_ _Ret_maybenull_ _Post_writable_byte_size_(_Count*_Size) _CRTIMP _CRTNOALIAS _CRTRESTRICT void * __cdecl _recalloc(_Pre_maybenull_ _Post_invalid_ void * _Memory, _In_ _CRT_GUARDOVERFLOW size_t _Count, _In_ _CRT_GUARDOVERFLOW size_t _Size);
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_CRTIMP _CRTNOALIAS void __cdecl _aligned_free(_Pre_maybenull_ _Post_invalid_ void * _Memory);
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_Check_return_ _Ret_maybenull_ _Post_writable_byte_size_(_Size) _CRTIMP _CRTNOALIAS _CRTRESTRICT void * __cdecl _aligned_malloc(_In_ _CRT_GUARDOVERFLOW size_t _Size, _In_ size_t _Alignment);
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_Check_return_ _Ret_maybenull_ _Post_writable_byte_size_(_Size) _CRTIMP _CRTNOALIAS _CRTRESTRICT void * __cdecl _aligned_offset_malloc(_In_ _CRT_GUARDOVERFLOW size_t _Size, _In_ size_t _Alignment, _In_ size_t _Offset);
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_Success_(return!=0)
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_Check_return_ _Ret_maybenull_ _Post_writable_byte_size_(_NewSize) _CRTIMP _CRTNOALIAS _CRTRESTRICT void * __cdecl _aligned_realloc(_Pre_maybenull_ _Post_invalid_ void * _Memory, _In_ _CRT_GUARDOVERFLOW size_t _NewSize, _In_ size_t _Alignment);
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_Success_(return!=0)
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_Check_return_ _Ret_maybenull_ _Post_writable_byte_size_(_Count*_Size) _CRTIMP _CRTNOALIAS _CRTRESTRICT void * __cdecl _aligned_recalloc(_Pre_maybenull_ _Post_invalid_ void * _Memory, _In_ _CRT_GUARDOVERFLOW size_t _Count, _In_ _CRT_GUARDOVERFLOW size_t _Size, _In_ size_t _Alignment);
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_Success_(return!=0)
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_Check_return_ _Ret_maybenull_ _Post_writable_byte_size_(_NewSize) _CRTIMP _CRTNOALIAS _CRTRESTRICT void * __cdecl _aligned_offset_realloc(_Pre_maybenull_ _Post_invalid_ void * _Memory, _In_ _CRT_GUARDOVERFLOW size_t _NewSize, _In_ size_t _Alignment, _In_ size_t _Offset);
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_Success_(return!=0)
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_Check_return_ _Ret_maybenull_ _Post_writable_byte_size_(_Count*_Size) _CRTIMP _CRTNOALIAS _CRTRESTRICT void * __cdecl _aligned_offset_recalloc(_Pre_maybenull_ _Post_invalid_ void * _Memory, _In_ _CRT_GUARDOVERFLOW size_t _Count, _In_ _CRT_GUARDOVERFLOW size_t _Size, _In_ size_t _Alignment, _In_ size_t _Offset);
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_Check_return_ _CRTIMP size_t __cdecl _aligned_msize(_Pre_notnull_ void * _Memory, _In_ size_t _Alignment, _In_ size_t _Offset);
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#endif /* _CRT_ALLOCATION_DEFINED */
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#if defined (_DEBUG) && defined (_CRTDBG_MAP_ALLOC)
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#pragma pop_macro("calloc")
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#pragma pop_macro("free")
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#pragma pop_macro("malloc")
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#pragma pop_macro("realloc")
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#pragma pop_macro("_recalloc")
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#pragma pop_macro("_aligned_free")
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#pragma pop_macro("_aligned_malloc")
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#pragma pop_macro("_aligned_offset_malloc")
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#pragma pop_macro("_aligned_realloc")
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#pragma pop_macro("_aligned_recalloc")
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#pragma pop_macro("_aligned_offset_realloc")
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#pragma pop_macro("_aligned_offset_recalloc")
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#pragma pop_macro("_aligned_msize")
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#pragma pop_macro("_freea")
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#endif /* defined (_DEBUG) && defined (_CRTDBG_MAP_ALLOC) */
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#ifdef _CRT_USE_WINAPI_FAMILY_DESKTOP_APP
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_CRTIMP int __cdecl _resetstkoflw (void);
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#endif /* _CRT_USE_WINAPI_FAMILY_DESKTOP_APP */
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#define _MAX_WAIT_MALLOC_CRT 60000
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_CRTIMP unsigned long __cdecl _set_malloc_crt_max_wait(_In_ unsigned long _NewValue);
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#if defined (_DEBUG) && defined (_CRTDBG_MAP_ALLOC)
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#pragma push_macro("_expand")
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#pragma push_macro("_msize")
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#undef _expand
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#undef _msize
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#endif /* defined (_DEBUG) && defined (_CRTDBG_MAP_ALLOC) */
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_Check_return_ _Ret_maybenull_ _Post_writable_byte_size_(_NewSize) _CRTIMP void * __cdecl _expand(_Pre_notnull_ void * _Memory, _In_ size_t _NewSize);
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_Check_return_ _CRTIMP size_t __cdecl _msize(_Pre_notnull_ void * _Memory);
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#if defined (_DEBUG) && defined (_CRTDBG_MAP_ALLOC)
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#pragma pop_macro("_expand")
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#pragma pop_macro("_msize")
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#endif /* defined (_DEBUG) && defined (_CRTDBG_MAP_ALLOC) */
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_Ret_notnull_ _Post_writable_byte_size_(_Size) void * __cdecl _alloca(_In_ size_t _Size);
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#if defined (_DEBUG) || defined (_CRT_USE_WINAPI_FAMILY_DESKTOP_APP)
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_CRTIMP _CRT_MANAGED_HEAP_DEPRECATE int __cdecl _heapwalk(_Inout_ _HEAPINFO * _EntryInfo);
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_CRTIMP intptr_t __cdecl _get_heap_handle(void);
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#endif /* defined (_DEBUG) || defined (_CRT_USE_WINAPI_FAMILY_DESKTOP_APP) */
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#ifdef _CRT_USE_WINAPI_FAMILY_DESKTOP_APP
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_Check_return_ _CRTIMP int __cdecl _heapadd(_In_ void * _Memory, _In_ size_t _Size);
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_Check_return_ _CRTIMP int __cdecl _heapchk(void);
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_Check_return_ _CRTIMP int __cdecl _heapmin(void);
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_CRTIMP int __cdecl _heapset(_In_ unsigned int _Fill);
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_CRTIMP size_t __cdecl _heapused(size_t * _Used, size_t * _Commit);
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#endif /* _CRT_USE_WINAPI_FAMILY_DESKTOP_APP */
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#define _ALLOCA_S_THRESHOLD 1024
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#define _ALLOCA_S_STACK_MARKER 0xCCCC
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#define _ALLOCA_S_HEAP_MARKER 0xDDDD
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#if defined (_M_IX86)
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#define _ALLOCA_S_MARKER_SIZE 8
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#elif defined (_M_X64)
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#define _ALLOCA_S_MARKER_SIZE 16
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#elif defined (_M_ARM)
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#define _ALLOCA_S_MARKER_SIZE 8
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#elif !defined (RC_INVOKED)
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#error Unsupported target platform.
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#endif /* !defined (RC_INVOKED) */
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_STATIC_ASSERT(sizeof(unsigned int) <= _ALLOCA_S_MARKER_SIZE);
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#if !defined (__midl) && !defined (RC_INVOKED)
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#pragma warning(push)
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#pragma warning(disable:6540)
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__inline void *_MarkAllocaS(_Out_opt_ __crt_typefix(unsigned int*) void *_Ptr, unsigned int _Marker)
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{
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if (_Ptr)
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{
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*((unsigned int*)_Ptr) = _Marker;
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_Ptr = (char*)_Ptr + _ALLOCA_S_MARKER_SIZE;
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}
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return _Ptr;
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}
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__inline int _MallocaIsSizeInRange(size_t size)
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{
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return size + _ALLOCA_S_MARKER_SIZE > size;
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}
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#pragma warning(pop)
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#endif /* !defined (__midl) && !defined (RC_INVOKED) */
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#if defined(_DEBUG)
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#if !defined(_CRTDBG_MAP_ALLOC)
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#undef _malloca
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#define _malloca(size) \
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__pragma(warning(suppress: 6255)) \
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(_MallocaIsSizeInRange(size) \
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? _MarkAllocaS(malloc((size_t)(size) + _ALLOCA_S_MARKER_SIZE), _ALLOCA_S_HEAP_MARKER) \
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: NULL)
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#endif
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#else
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#undef _malloca
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#define _malloca(size) \
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__pragma(warning(suppress: 6255)) \
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(_MallocaIsSizeInRange(size) \
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? (((((size_t)(size) + _ALLOCA_S_MARKER_SIZE) <= _ALLOCA_S_THRESHOLD) \
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? _MarkAllocaS(_alloca((size_t)(size) + _ALLOCA_S_MARKER_SIZE), _ALLOCA_S_STACK_MARKER) \
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: _MarkAllocaS(malloc((size_t)(size) + _ALLOCA_S_MARKER_SIZE), _ALLOCA_S_HEAP_MARKER))) \
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: NULL)
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#endif
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#undef _FREEA_INLINE
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#ifdef _CRTBLD
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#ifndef _CRT_NOFREEA
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#define _FREEA_INLINE
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#else /* _CRT_NOFREEA */
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#undef _FREEA_INLINE
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#endif /* _CRT_NOFREEA */
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#else /* _CRTBLD */
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#define _FREEA_INLINE
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#endif /* _CRTBLD */
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#ifdef _FREEA_INLINE
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/* _freea must be in the header so that its allocator matches _malloca */
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#if !defined (__midl) && !defined (RC_INVOKED)
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#if !(defined (_DEBUG) && defined (_CRTDBG_MAP_ALLOC))
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#undef _freea
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__pragma(warning(push))
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__pragma(warning(disable: 6014))
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_CRTNOALIAS __inline void __CRTDECL _freea(_Pre_maybenull_ _Post_invalid_ void * _Memory)
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{
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unsigned int _Marker;
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if (_Memory)
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{
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_Memory = (char*)_Memory - _ALLOCA_S_MARKER_SIZE;
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_Marker = *(unsigned int *)_Memory;
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if (_Marker == _ALLOCA_S_HEAP_MARKER)
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{
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free(_Memory);
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}
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#if defined (_ASSERTE)
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else if (_Marker != _ALLOCA_S_STACK_MARKER)
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{
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#pragma warning(suppress: 4548) /* expression before comma has no effect */
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_ASSERTE(("Corrupted pointer passed to _freea", 0));
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}
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#endif /* defined (_ASSERTE) */
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}
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}
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__pragma(warning(pop))
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#endif /* !(defined (_DEBUG) && defined (_CRTDBG_MAP_ALLOC)) */
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#endif /* !defined (__midl) && !defined (RC_INVOKED) */
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#endif /* _FREEA_INLINE */
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#if !__STDC__
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/* Non-ANSI names for compatibility */
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#define alloca _alloca
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#endif /* !__STDC__ */
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#pragma pack(pop)
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#endif /* _INC_MALLOC */
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