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 "config.h"
  11
  12 #include "winbase.h"
  13
  14 extern HANDLE SystemHeap;
  15 extern HANDLE SegptrHeap;
  16
  17 extern int HEAP_IsInsideHeap( HANDLE heap, DWORD flags, LPCVOID ptr );
  18 extern SEGPTR HEAP_GetSegptr( HANDLE heap, DWORD flags, LPCVOID ptr );
  19 extern LPVOID HEAP_xalloc( HANDLE heap, DWORD flags, DWORD size );
  20 extern LPVOID HEAP_xrealloc( HANDLE heap, DWORD flags, LPVOID lpMem, DWORD size );
  21 extern LPSTR HEAP_strdupA( HANDLE heap, DWORD flags, LPCSTR str );
  22 extern LPWSTR HEAP_strdupW( HANDLE heap, DWORD flags, LPCWSTR str );
  23 extern LPWSTR HEAP_strdupAtoW( HANDLE heap, DWORD flags, LPCSTR str );
  24 extern LPSTR HEAP_strdupWtoA( HANDLE heap, DWORD flags, LPCWSTR str );
  25 extern BOOL HEAP_CreateSystemHeap(void);
  26
  27 /* SEGPTR helper macros */
  28
  29 #define SEGPTR_ALLOC(size) \
  30          (HeapAlloc( SegptrHeap, 0, (size) ))
  31 #define SEGPTR_NEW(type) \
  32          ((type *)HeapAlloc( SegptrHeap, 0, sizeof(type) ))
  33 #define SEGPTR_STRDUP(str) \
  34          (HIWORD(str) ? HEAP_strdupA( SegptrHeap, 0, (str) ) : (LPSTR)(str))
  35 #define SEGPTR_STRDUP_WtoA(str) \
  36          (HIWORD(str) ? HEAP_strdupWtoA( SegptrHeap, 0, (str) ) : (LPSTR)(str))
  37         /* define an inline function, a macro won't do */
  38 static inline SEGPTR WINE_UNUSED SEGPTR_Get(LPCVOID ptr) {
  39          return (HIWORD(ptr) ? HEAP_GetSegptr( SegptrHeap, 0, ptr ) : (SEGPTR)ptr);
  40 }
  41 #define SEGPTR_GET(ptr) SEGPTR_Get(ptr)
  42 #define SEGPTR_FREE(ptr) \
  43          (HIWORD(ptr) ? HeapFree( SegptrHeap, 0, (ptr) ) : 0)
  44
  45 /* system heap private data */
  46 /* you must lock the system heap before using this structure */
  47 typedef struct
  48 {
  49     void     *gdi;        /* GDI heap */
  50     void     *user;       /* USER handle table */
  51     void     *cursor;     /* cursor information */
  52     void     *queue;      /* message queues descriptor */
  53     void     *win;        /* windows descriptor */
  54     void     *root;       /* X11 root window */
  55 } SYSTEM_HEAP_DESCR;
  56
  57 extern SYSTEM_HEAP_DESCR *SystemHeapDescr;
  58
  59 #endif  /* __WINE_HEAP_H */