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 "winnls.h"
  14 #include "wine/unicode.h"
  15 #include "wine/windef16.h"  /* for SEGPTR */
  16
  17 extern HANDLE SystemHeap;
  18
  19 extern SEGPTR HEAP_GetSegptr( HANDLE heap, DWORD flags, LPCVOID ptr );
  20 extern BOOL HEAP_CreateSystemHeap(void);
  21
  22 /* SEGPTR helper macros */
  23
  24 #define SEGPTR_ALLOC(size) \
  25      (HeapAlloc( GetProcessHeap(), HEAP_WINE_SEGPTR, (size) ))
  26 #define SEGPTR_NEW(type) \
  27      ((type *)HeapAlloc( GetProcessHeap(), HEAP_WINE_SEGPTR, sizeof(type) ))
  28 #define SEGPTR_STRDUP(str) \
  29      (HIWORD(str) ? HEAP_strdupA( GetProcessHeap(), HEAP_WINE_SEGPTR, (str) ) : (LPSTR)(str))
  30 #define SEGPTR_STRDUP_WtoA(str) \
  31      (HIWORD(str) ? HEAP_strdupWtoA( GetProcessHeap(), HEAP_WINE_SEGPTR, (str) ) : (LPSTR)(str))
  32 #define SEGPTR_FREE(ptr) \
  33      (HIWORD(ptr) ? HeapFree( GetProcessHeap(), HEAP_WINE_SEGPTR, (ptr) ) : 0)
  34 #define SEGPTR_GET(ptr) MapLS(ptr)
  35
  36
  37 /* strdup macros */
  38 /* DO NOT USE THEM!!  they will go away soon */
  39
  40 inline static LPSTR HEAP_strdupA( HANDLE heap, DWORD flags, LPCSTR str )
  41 {
  42     INT len = strlen(str) + 1;
  43     LPSTR p = HeapAlloc( heap, flags, len );
  44     if (p) memcpy( p, str, len );
  45     return p;
  46 }
  47
  48 inline static LPWSTR HEAP_strdupW( HANDLE heap, DWORD flags, LPCWSTR str )
  49 {
  50     INT len = strlenW(str) + 1;
  51     LPWSTR p = HeapAlloc( heap, flags, len * sizeof(WCHAR) );
  52     if (p) memcpy( p, str, len * sizeof(WCHAR) );
  53     return p;
  54 }
  55
  56 inline static LPWSTR HEAP_strdupAtoW( HANDLE heap, DWORD flags, LPCSTR str )
  57 {
  58     LPWSTR ret;
  59     INT len;
  60
  61     if (!str) return NULL;
  62     len = MultiByteToWideChar( CP_ACP, 0, str, -1, NULL, 0 );
  63     ret = HeapAlloc( heap, flags, len * sizeof(WCHAR) );
  64     if (ret) MultiByteToWideChar( CP_ACP, 0, str, -1, ret, len );
  65     return ret;
  66 }
  67
  68 inline static LPSTR HEAP_strdupWtoA( HANDLE heap, DWORD flags, LPCWSTR str )
  69 {
  70     LPSTR ret;
  71     INT len;
  72
  73     if (!str) return NULL;
  74     len = WideCharToMultiByte( CP_ACP, 0, str, -1, NULL, 0, NULL, NULL );
  75     ret = HeapAlloc( heap, flags, len );
  76     if(ret) WideCharToMultiByte( CP_ACP, 0, str, -1, ret, len, NULL, NULL );
  77     return ret;
  78 }
  79
  80 /* system heap private data */
  81 /* you must lock the system heap before using this structure */
  82 typedef struct
  83 {
  84     void     *gdi;        /* GDI heap */
  85     void     *user;       /* USER handle table */
  86     void     *cursor;     /* cursor information */
  87     void     *queue;      /* message queues descriptor */
  88     void     *win;        /* windows descriptor */
  89     void     *root;       /* X11 root window */
  90 } SYSTEM_HEAP_DESCR;
  91
  92 extern SYSTEM_HEAP_DESCR *SystemHeapDescr;
  93
  94 #endif  /* __WINE_HEAP_H */