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 #include "winnt.h"
  12
  13 extern HANDLE32 SystemHeap;
  14 extern HANDLE32 SegptrHeap;
  15 extern CRITICAL_SECTION *HEAP_SystemLock;
  16
  17 extern int HEAP_IsInsideHeap( HANDLE32 heap, DWORD flags, LPCVOID ptr );
  18 extern SEGPTR HEAP_GetSegptr( HANDLE32 heap, DWORD flags, LPCVOID ptr );
  19 extern LPVOID HEAP_xalloc( HANDLE32 heap, DWORD flags, DWORD size );
  20 extern LPSTR HEAP_strdupA( HANDLE32 heap, DWORD flags, LPCSTR str );
  21 extern LPWSTR HEAP_strdupW( HANDLE32 heap, DWORD flags, LPCWSTR str );
  22 extern LPWSTR HEAP_strdupAtoW( HANDLE32 heap, DWORD flags, LPCSTR str );
  23 extern LPSTR HEAP_strdupWtoA( HANDLE32 heap, DWORD flags, LPCWSTR str );
  24
  25 /* SEGPTR helper macros */
  26
  27 #define SEGPTR_ALLOC(size) \
  28          (HeapAlloc( SegptrHeap, 0, (size) ))
  29 #define SEGPTR_NEW(type) \
  30          ((type *)HeapAlloc( SegptrHeap, 0, sizeof(type) ))
  31 #define SEGPTR_STRDUP(str) \
  32          (HIWORD(str) ? HEAP_strdupA( SegptrHeap, 0, (str) ) : (LPSTR)(str))
  33 #define SEGPTR_STRDUP_WtoA(str) \
  34          (HIWORD(str) ? HEAP_strdupWtoA( SegptrHeap, 0, (str) ) : (LPSTR)(str))
  35         /* define an inline function, a macro won't do */
  36 static __inline__ SEGPTR SEGPTR_Get(LPCVOID ptr) {
  37          return (HIWORD(ptr) ? HEAP_GetSegptr( SegptrHeap, 0, ptr ) : (SEGPTR)ptr);
  38 }
  39 #define SEGPTR_GET(ptr) SEGPTR_Get(ptr)
  40 #define SEGPTR_FREE(ptr) \
  41          (HIWORD(ptr) ? HeapFree( SegptrHeap, 0, (ptr) ) : 0)
  42
  43 /* System heap locking macros */
  44
  45 #define SYSTEM_LOCK()       (EnterCriticalSection(HEAP_SystemLock))
  46 #define SYSTEM_UNLOCK()     (LeaveCriticalSection(HEAP_SystemLock))
  47 /* Use this one only when you own the lock! */
  48 #define SYSTEM_LOCK_COUNT() (HEAP_SystemLock->RecursionCount)
  49
  50
  51 typedef struct
  52 {
  53     LPVOID lpData;
  54     DWORD cbData;
  55     BYTE cbOverhead;
  56     BYTE iRegionIndex;
  57     WORD wFlags;
  58     union {
  59         struct {
  60             HANDLE32 hMem;
  61             DWORD dwReserved[3];
  62         } Block;
  63         struct {
  64             DWORD dwCommittedSize;
  65             DWORD dwUnCommittedSize;
  66             LPVOID lpFirstBlock;
  67             LPVOID lpLastBlock;
  68         } Region;
  69     } Foo;
  70 } PROCESS_HEAP_ENTRY, *LPPROCESS_HEAP_ENTRY;
  71
  72 #endif  /* __WINE_HEAP_H */