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  1. /**
  2.  * This file has no copyright assigned and is placed in the Public Domain.
  3.  * This file is part of the w64 mingw-runtime package.
  4.  * No warranty is given; refer to the file DISCLAIMER within this package.
  5.  */
  6. #ifndef _MALLOC_H_
  7. #define _MALLOC_H_
  8.  
  9. #include <_mingw.h>
  10.  
  11. #pragma pack(push,_CRT_PACKING)
  12.  
  13. #ifndef _MM_MALLOC_H_INCLUDED
  14. #define _MM_MALLOC_H_INCLUDED
  15. #endif
  16.  
  17. #ifdef __cplusplus
  18. extern "C" {
  19. #endif
  20.  
  21. #ifdef _WIN64
  22. #define _HEAP_MAXREQ 0xFFFFFFFFFFFFFFE0
  23. #else
  24. #define _HEAP_MAXREQ 0xFFFFFFE0
  25. #endif
  26.  
  27. #ifndef _STATIC_ASSERT
  28. #define _STATIC_ASSERT(expr) extern void __static_assert_t(int [(expr)?1:-1])
  29. #endif
  30.  
  31. /* Return codes for _heapwalk()  */
  32. #define _HEAPEMPTY (-1)
  33. #define _HEAPOK (-2)
  34. #define _HEAPBADBEGIN (-3)
  35. #define _HEAPBADNODE (-4)
  36. #define _HEAPEND (-5)
  37. #define _HEAPBADPTR (-6)
  38.  
  39. /* Values for _heapinfo.useflag */
  40. #define _FREEENTRY 0
  41. #define _USEDENTRY 1
  42.  
  43. #ifndef _HEAPINFO_DEFINED
  44. #define _HEAPINFO_DEFINED
  45.  /* The structure used to walk through the heap with _heapwalk.  */
  46.   typedef struct _heapinfo {
  47.     int *_pentry;
  48.     size_t _size;
  49.     int _useflag;
  50.   } _HEAPINFO;
  51. #endif
  52.  
  53.   extern unsigned int _amblksiz;
  54.  
  55. #define _mm_free(a) _aligned_free(a)
  56. #define _mm_malloc(a,b) _aligned_malloc(a,b)
  57.  
  58. #ifndef _CRT_ALLOCATION_DEFINED
  59. #define _CRT_ALLOCATION_DEFINED
  60.   void *__cdecl calloc(size_t _NumOfElements,size_t _SizeOfElements);
  61.   void __cdecl free(void *_Memory);
  62.   void *__cdecl malloc(size_t _Size);
  63.   void *__cdecl realloc(void *_Memory,size_t _NewSize);
  64.   _CRTIMP void *__cdecl _recalloc(void *_Memory,size_t _Count,size_t _Size);
  65.   /*    _CRTIMP void __cdecl _aligned_free(void *_Memory);
  66.   _CRTIMP void *__cdecl _aligned_malloc(size_t _Size,size_t _Alignment); */
  67.   _CRTIMP void *__cdecl _aligned_offset_malloc(size_t _Size,size_t _Alignment,size_t _Offset);
  68.   _CRTIMP void *__cdecl _aligned_realloc(void *_Memory,size_t _Size,size_t _Alignment);
  69.   _CRTIMP void *__cdecl _aligned_recalloc(void *_Memory,size_t _Count,size_t _Size,size_t _Alignment);
  70.   _CRTIMP void *__cdecl _aligned_offset_realloc(void *_Memory,size_t _Size,size_t _Alignment,size_t _Offset);
  71.   _CRTIMP void *__cdecl _aligned_offset_recalloc(void *_Memory,size_t _Count,size_t _Size,size_t _Alignment,size_t _Offset);
  72. #endif
  73.  
  74. #define _MAX_WAIT_MALLOC_CRT 60000
  75.  
  76.   _CRTIMP int __cdecl _resetstkoflw (void);
  77.   _CRTIMP unsigned long __cdecl _set_malloc_crt_max_wait(unsigned long _NewValue);
  78.  
  79.   _CRTIMP void *__cdecl _expand(void *_Memory,size_t _NewSize);
  80.   _CRTIMP size_t __cdecl _msize(void *_Memory);
  81. #ifdef __GNUC__
  82. #undef _alloca
  83. #define _alloca(x) __builtin_alloca((x))
  84. #else
  85.   void *__cdecl _alloca(size_t _Size);
  86. #endif
  87.   _CRTIMP size_t __cdecl _get_sbh_threshold(void);
  88.   _CRTIMP int __cdecl _set_sbh_threshold(size_t _NewValue);
  89.   _CRTIMP errno_t __cdecl _set_amblksiz(size_t _Value);
  90.   _CRTIMP errno_t __cdecl _get_amblksiz(size_t *_Value);
  91.   _CRTIMP int __cdecl _heapadd(void *_Memory,size_t _Size);
  92.   _CRTIMP int __cdecl _heapchk(void);
  93.   _CRTIMP int __cdecl _heapmin(void);
  94.   _CRTIMP int __cdecl _heapset(unsigned int _Fill);
  95.   _CRTIMP int __cdecl _heapwalk(_HEAPINFO *_EntryInfo);
  96.   _CRTIMP size_t __cdecl _heapused(size_t *_Used,size_t *_Commit);
  97.   _CRTIMP intptr_t __cdecl _get_heap_handle(void);
  98.  
  99. #define _ALLOCA_S_THRESHOLD 1024
  100. #define _ALLOCA_S_STACK_MARKER 0xCCCC
  101. #define _ALLOCA_S_HEAP_MARKER 0xDDDD
  102.  
  103. #if(defined(_X86_) && !defined(__x86_64))
  104. #define _ALLOCA_S_MARKER_SIZE 8
  105. #elif defined(__ia64__) || defined(__x86_64)
  106. #define _ALLOCA_S_MARKER_SIZE 16
  107. #endif
  108.  
  109. #if !defined(RC_INVOKED)
  110.   static __inline void *_MarkAllocaS(void *_Ptr,unsigned int _Marker) {
  111.     if(_Ptr) {
  112.       *((unsigned int*)_Ptr) = _Marker;
  113.       _Ptr = (char*)_Ptr + _ALLOCA_S_MARKER_SIZE;
  114.     }
  115.     return _Ptr;
  116.   }
  117. #endif
  118.  
  119. #undef _malloca
  120. #define _malloca(size) \
  121.   ((((size) + _ALLOCA_S_MARKER_SIZE) <= _ALLOCA_S_THRESHOLD) ? \
  122.     _MarkAllocaS(_alloca((size) + _ALLOCA_S_MARKER_SIZE),_ALLOCA_S_STACK_MARKER) : \
  123.     _MarkAllocaS(malloc((size) + _ALLOCA_S_MARKER_SIZE),_ALLOCA_S_HEAP_MARKER))
  124. #undef _FREEA_INLINE
  125. #define _FREEA_INLINE
  126.  
  127. #ifndef RC_INVOKED
  128. #undef _freea
  129.   static __inline void __cdecl _freea(void *_Memory) {
  130.     unsigned int _Marker;
  131.     if(_Memory) {
  132.       _Memory = (char*)_Memory - _ALLOCA_S_MARKER_SIZE;
  133.       _Marker = *(unsigned int *)_Memory;
  134.       if(_Marker==_ALLOCA_S_HEAP_MARKER) {
  135.         free(_Memory);
  136.       }
  137. #ifdef _ASSERTE
  138.       else if(_Marker!=_ALLOCA_S_STACK_MARKER) {
  139.         _ASSERTE(("Corrupted pointer passed to _freea",0));
  140.       }
  141. #endif
  142.     }
  143.   }
  144. #endif /* RC_INVOKED */
  145.  
  146. #ifndef NO_OLDNAMES
  147. #ifdef __GNUC__
  148. #undef alloca
  149. #define alloca(x) __builtin_alloca((x))
  150. #endif
  151. #endif
  152.  
  153. #ifdef HEAPHOOK
  154. #ifndef _HEAPHOOK_DEFINED
  155. #define _HEAPHOOK_DEFINED
  156.   typedef int (__cdecl *_HEAPHOOK)(int,size_t,void *,void **);
  157. #endif
  158.  
  159.   _CRTIMP _HEAPHOOK __cdecl _setheaphook(_HEAPHOOK _NewHook);
  160.  
  161. #define _HEAP_MALLOC 1
  162. #define _HEAP_CALLOC 2
  163. #define _HEAP_FREE 3
  164. #define _HEAP_REALLOC 4
  165. #define _HEAP_MSIZE 5
  166. #define _HEAP_EXPAND 6
  167. #endif
  168.  
  169. #ifdef __cplusplus
  170. }
  171. #endif
  172.  
  173. #pragma pack(pop)
  174.  
  175. #endif /* _MALLOC_H_ */
  176.