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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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#if _MSC_VER > 1000 |
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#pragma once |
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#endif |
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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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#ifdef _MSC_VER |
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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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#endif /* _MSC_VER */ |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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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 |
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#define _HEAP_MAXREQ 0xFFFFFFE0 |
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#endif |
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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 |
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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 |
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/* External variable declarations */ |
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#if !defined(_M_CEE_PURE) |
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extern _CRT_INSECURE_DEPRECATE_GLOBALS(_get_amblksiz) unsigned int _amblksiz; |
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#else |
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_CRT_INSECURE_DEPRECATE_GLOBALS(_get_amblksiz) _CRTIMP unsigned int * __cdecl __p__amblksiz(void); |
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#define _amblksiz (*__p__amblksiz()) |
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#endif /* !defined(_M_CEE_PURE) */ |
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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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#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 |
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#ifndef _CRT_ALLOCATION_DEFINED |
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#define _CRT_ALLOCATION_DEFINED |
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_Check_return_ _Ret_opt_bytecap_x_(_Count*_Size) _CRTIMP _CRT_JIT_INTRINSIC _CRTNOALIAS _CRTRESTRICT void * __cdecl calloc(_In_ size_t _Count, _In_ size_t _Size); |
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_CRTIMP _CRTNOALIAS void __cdecl free(_Inout_opt_ void * _Memory); |
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_Check_return_ _Ret_opt_bytecap_(_Size) _CRTIMP _CRT_JIT_INTRINSIC _CRTNOALIAS _CRTRESTRICT void * __cdecl malloc(_In_ size_t _Size); |
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_Check_return_ _Ret_opt_bytecap_(_NewSize) _CRTIMP _CRTNOALIAS _CRTRESTRICT void * __cdecl realloc(_In_opt_ void * _Memory, _In_ size_t _NewSize); |
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_Check_return_ _Ret_opt_bytecap_x_(_Count*_Size) _CRTIMP _CRTNOALIAS _CRTRESTRICT void * __cdecl _recalloc(_In_opt_ void * _Memory, _In_ size_t _Count, _In_ size_t _Size); |
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_CRTIMP _CRTNOALIAS void __cdecl _aligned_free(_Inout_opt_ void * _Memory); |
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_Check_return_ _Ret_opt_bytecap_(_Size) _CRTIMP _CRTNOALIAS _CRTRESTRICT void * __cdecl _aligned_malloc(_In_ size_t _Size, _In_ size_t _Alignment); |
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_Check_return_ _Ret_opt_bytecap_(_Size) _CRTIMP _CRTNOALIAS _CRTRESTRICT void * __cdecl _aligned_offset_malloc(_In_ size_t _Size, _In_ size_t _Alignment, _In_ size_t _Offset); |
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_Check_return_ _Ret_opt_bytecap_(_NewSize) _CRTIMP _CRTNOALIAS _CRTRESTRICT void * __cdecl _aligned_realloc(_In_opt_ void * _Memory, _In_ size_t _NewSize, _In_ size_t _Alignment); |
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_Check_return_ _Ret_opt_bytecap_x_(_Count*_Size) _CRTIMP _CRTNOALIAS _CRTRESTRICT void * __cdecl _aligned_recalloc(_In_opt_ void * _Memory, _In_ size_t _Count, _In_ size_t _Size, _In_ size_t _Alignment); |
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_Check_return_ _Ret_opt_bytecap_(_NewSize) _CRTIMP _CRTNOALIAS _CRTRESTRICT void * __cdecl _aligned_offset_realloc(_In_opt_ void * _Memory, _In_ size_t _NewSize, _In_ size_t _Alignment, _In_ size_t _Offset); |
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_Check_return_ _Ret_opt_bytecap_x_(_Count*_Size) _CRTIMP _CRTNOALIAS _CRTRESTRICT void * __cdecl _aligned_offset_recalloc(_In_opt_ void * _Memory, _In_ size_t _Count, _In_ size_t _Size, _In_ size_t _Alignment, _In_ size_t _Offset); |
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_Check_return_ _CRTIMP size_t __cdecl _aligned_msize(_In_ void * _Memory, _In_ size_t _Alignment, _In_ size_t _Offset); |
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#endif |
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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 |
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_CRTIMP int __cdecl _resetstkoflw (void); |
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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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#ifndef _POSIX_ |
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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 |
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_Check_return_ _Ret_opt_bytecap_(_NewSize) _CRTIMP void * __cdecl _expand(_In_opt_ void * _Memory, _In_ size_t _NewSize); |
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_Check_return_ _CRTIMP size_t __cdecl _msize(_In_ 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 |
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_Check_return_ _Ret_bytecap_(_Size) void * __cdecl _alloca(_In_ size_t _Size); |
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_Check_return_ _CRTIMP size_t __cdecl _get_sbh_threshold(void); |
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_CRTIMP int __cdecl _set_sbh_threshold(_In_ size_t _NewValue); |
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_CRTIMP errno_t __cdecl _set_amblksiz(_In_ size_t _Value); |
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_CRTIMP errno_t __cdecl _get_amblksiz(_Out_ size_t * _Value); |
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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 _CRT_MANAGED_HEAP_DEPRECATE int __cdecl _heapwalk(_Inout_ _HEAPINFO * _EntryInfo); |
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_CRTIMP size_t __cdecl _heapused(size_t * _Used, size_t * _Commit); |
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_CRTIMP intptr_t __cdecl _get_heap_handle(void); |
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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_IA64) |
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#define _ALLOCA_S_MARKER_SIZE 16 |
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#elif defined(_M_AMD64) |
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#define _ALLOCA_S_MARKER_SIZE 16 |
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#endif |
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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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#pragma warning(pop) |
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#endif |
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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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_MarkAllocaS(malloc((size) + _ALLOCA_S_MARKER_SIZE), _ALLOCA_S_HEAP_MARKER) |
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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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((((size) + _ALLOCA_S_MARKER_SIZE) <= _ALLOCA_S_THRESHOLD) ? \ |
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_MarkAllocaS(_alloca((size) + _ALLOCA_S_MARKER_SIZE), _ALLOCA_S_STACK_MARKER) : \ |
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_MarkAllocaS(malloc((size) + _ALLOCA_S_MARKER_SIZE), _ALLOCA_S_HEAP_MARKER)) |
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#endif |
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#undef _FREEA_INLINE |
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#define _FREEA_INLINE |
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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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#undef _freea |
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_CRTNOALIAS __inline void __CRTDECL _freea(_Inout_opt_ 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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_ASSERTE(("Corrupted pointer passed to _freea", 0)); |
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} |
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#endif |
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} |
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} |
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#endif |
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#endif |
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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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#endif /* _POSIX_ */ |
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#ifdef HEAPHOOK |
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#ifndef _HEAPHOOK_DEFINED |
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/* hook function type */ |
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typedef int (__cdecl * _HEAPHOOK)(int, size_t, void *, void **); |
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#define _HEAPHOOK_DEFINED |
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#endif /* _HEAPHOOK_DEFINED */ |
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/* set hook function */ |
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_CRTIMP _HEAPHOOK __cdecl _setheaphook(_In_opt_ _HEAPHOOK _NewHook); |
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/* hook function must handle these types */ |
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#define _HEAP_MALLOC 1 |
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#define _HEAP_CALLOC 2 |
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#define _HEAP_FREE 3 |
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#define _HEAP_REALLOC 4 |
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#define _HEAP_MSIZE 5 |
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#define _HEAP_EXPAND 6 |
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#endif /* HEAPHOOK */ |
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#ifdef __cplusplus |
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} |
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#endif |
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#ifdef _MSC_VER |
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#pragma pack(pop) |
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#endif /* _MSC_VER */ |
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#endif /* _INC_MALLOC */ |
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