include/wine/heap.h

   1 /*
   2  * Wine heap memory allocation wrappers
   3  *
   4  * Copyright 2006 Jacek Caban for CodeWeavers
   5  * Copyright 2013, 2018 Michael Stefaniuc
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #ifndef __WINE_WINE_HEAP_H
  23 #define __WINE_WINE_HEAP_H
  24
  25 #include <winbase.h>
  26
  27 static inline void * __WINE_ALLOC_SIZE(1) __WINE_MALLOC heap_alloc(SIZE_T len)
  28 {
  29     return HeapAlloc(GetProcessHeap(), 0, len);
  30 }
  31
  32 static inline void * __WINE_ALLOC_SIZE(1) __WINE_MALLOC heap_alloc_zero(SIZE_T len)
  33 {
  34     return HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, len);
  35 }
  36
  37 static inline void * __WINE_ALLOC_SIZE(2) heap_realloc(void *mem, SIZE_T len)
  38 {
  39     if (!mem)
  40         return HeapAlloc(GetProcessHeap(), 0, len);
  41     return HeapReAlloc(GetProcessHeap(), 0, mem, len);
  42 }
  43
  44 static inline void heap_free(void *mem)
  45 {
  46     HeapFree(GetProcessHeap(), 0, mem);
  47 }
  48
  49 static inline void * __WINE_ALLOC_SIZE(1,2) __WINE_MALLOC heap_calloc(SIZE_T count, SIZE_T size)
  50 {
  51     SIZE_T len = count * size;
  52
  53     if (size && len / size != count)
  54         return NULL;
  55     return HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, len);
  56 }
  57
  58 #endif  /* __WINE_WINE_HEAP_H */