include/heap.h

   1 /*
   2  * Win32 heap definitions
   3  *
   4  * Copyright 1996 Alexandre Julliard
   5  */
   6
   7 #ifndef __WINE_HEAP_H
   8 #define __WINE_HEAP_H
   9
  10 #include "winbase.h"
  11
  12 extern HANDLE SystemHeap;
  13 extern HANDLE SegptrHeap;
  14
  15 extern int HEAP_IsInsideHeap( HANDLE heap, DWORD flags, LPCVOID ptr );
  16 extern SEGPTR HEAP_GetSegptr( HANDLE heap, DWORD flags, LPCVOID ptr );
  17 extern LPVOID HEAP_xalloc( HANDLE heap, DWORD flags, DWORD size );
  18 extern LPSTR HEAP_strdupA( HANDLE heap, DWORD flags, LPCSTR str );
  19 extern LPWSTR HEAP_strdupW( HANDLE heap, DWORD flags, LPCWSTR str );
  20 extern LPWSTR HEAP_strdupAtoW( HANDLE heap, DWORD flags, LPCSTR str );
  21 extern LPSTR HEAP_strdupWtoA( HANDLE heap, DWORD flags, LPCWSTR str );
  22
  23 /* SEGPTR helper macros */
  24
  25 #define SEGPTR_ALLOC(size) \
  26          (HeapAlloc( SegptrHeap, 0, (size) ))
  27 #define SEGPTR_NEW(type) \
  28          ((type *)HeapAlloc( SegptrHeap, 0, sizeof(type) ))
  29 #define SEGPTR_STRDUP(str) \
  30          (HIWORD(str) ? HEAP_strdupA( SegptrHeap, 0, (str) ) : (LPSTR)(str))
  31 #define SEGPTR_STRDUP_WtoA(str) \
  32          (HIWORD(str) ? HEAP_strdupWtoA( SegptrHeap, 0, (str) ) : (LPSTR)(str))
  33         /* define an inline function, a macro won't do */
  34 static __inline__ SEGPTR WINE_UNUSED SEGPTR_Get(LPCVOID ptr) {
  35          return (HIWORD(ptr) ? HEAP_GetSegptr( SegptrHeap, 0, ptr ) : (SEGPTR)ptr);
  36 }
  37 #define SEGPTR_GET(ptr) SEGPTR_Get(ptr)
  38 #define SEGPTR_FREE(ptr) \
  39          (HIWORD(ptr) ? HeapFree( SegptrHeap, 0, (ptr) ) : 0)
  40
  41 typedef struct
  42 {
  43     LPVOID lpData;
  44     DWORD cbData;
  45     BYTE cbOverhead;
  46     BYTE iRegionIndex;
  47     WORD wFlags;
  48     union {
  49         struct {
  50             HANDLE hMem;
  51             DWORD dwReserved[3];
  52         } Block;
  53         struct {
  54             DWORD dwCommittedSize;
  55             DWORD dwUnCommittedSize;
  56             LPVOID lpFirstBlock;
  57             LPVOID lpLastBlock;
  58         } Region;
  59     } Foo;
  60 } PROCESS_HEAP_ENTRY, *LPPROCESS_HEAP_ENTRY;
  61
  62 #endif  /* __WINE_HEAP_H */