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 #include "wine/windef16.h"  /* for SEGPTR */
  14
  15 extern HANDLE SystemHeap;
  16 extern HANDLE SegptrHeap;
  17
  18 extern int HEAP_IsInsideHeap( HANDLE heap, DWORD flags, LPCVOID ptr );
  19 extern SEGPTR HEAP_GetSegptr( HANDLE heap, DWORD flags, LPCVOID ptr );
  20 extern LPSTR HEAP_strdupA( HANDLE heap, DWORD flags, LPCSTR str );
  21 extern LPWSTR HEAP_strdupW( HANDLE heap, DWORD flags, LPCWSTR str );
  22 extern LPWSTR HEAP_strdupAtoW( HANDLE heap, DWORD flags, LPCSTR str );
  23 extern LPSTR HEAP_strdupWtoA( HANDLE heap, DWORD flags, LPCWSTR str );
  24 extern BOOL HEAP_CreateSystemHeap(void);
  25
  26 /* SEGPTR helper macros */
  27
  28 #define SEGPTR_ALLOC(size) \
  29          (HeapAlloc( SegptrHeap, 0, (size) ))
  30 #define SEGPTR_NEW(type) \
  31          ((type *)HeapAlloc( SegptrHeap, 0, sizeof(type) ))
  32 #define SEGPTR_STRDUP(str) \
  33          (HIWORD(str) ? HEAP_strdupA( SegptrHeap, 0, (str) ) : (LPSTR)(str))
  34 #define SEGPTR_STRDUP_WtoA(str) \
  35          (HIWORD(str) ? HEAP_strdupWtoA( SegptrHeap, 0, (str) ) : (LPSTR)(str))
  36         /* define an inline function, a macro won't do */
  37 static inline SEGPTR WINE_UNUSED SEGPTR_Get(LPCVOID ptr) {
  38          return (HIWORD(ptr) ? HEAP_GetSegptr( SegptrHeap, 0, ptr ) : (SEGPTR)ptr);
  39 }
  40 #define SEGPTR_GET(ptr) SEGPTR_Get(ptr)
  41 #define SEGPTR_FREE(ptr) \
  42          (HIWORD(ptr) ? HeapFree( SegptrHeap, 0, (ptr) ) : 0)
  43
  44 /* system heap private data */
  45 /* you must lock the system heap before using this structure */
  46 typedef struct
  47 {
  48     void     *gdi;        /* GDI heap */
  49     void     *user;       /* USER handle table */
  50     void     *cursor;     /* cursor information */
  51     void     *queue;      /* message queues descriptor */
  52     void     *win;        /* windows descriptor */
  53     void     *root;       /* X11 root window */
  54 } SYSTEM_HEAP_DESCR;
  55
  56 extern SYSTEM_HEAP_DESCR *SystemHeapDescr;
  57
  58 #endif  /* __WINE_HEAP_H */