reactos/dll/win32/gdi32/misc/heap.c

   1 /*
   2  *
   3  * This library is free software; you can redistribute it and/or
   4  * modify it under the terms of the GNU Lesser General Public
   5  * License as published by the Free Software Foundation; either
   6  * version 2.1 of the License, or (at your option) any later version.
   7  *
   8  * This library is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * Lesser General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU Lesser General Public
  14  * License along with this library; if not, write to the Free Software
  15  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  16  */
  17 /*
  18  * $Id:
  19  * COPYRIGHT:        See COPYING in the top level directory
  20  * PROJECT:          ReactOS GDI32
  21  * PURPOSE:
  22  * FILE:             lib/gdi32/misc/heap.c
  23  * PROGRAMER:
  24  * REVISION HISTORY:
  25  * NOTES:
  26  */
  27
  28 #include "precomp.h"
  29 #include <debug.h>
  30
  31 // global variables in a dll are process-global
  32 HANDLE hProcessHeap = NULL;
  33
  34
  35 PVOID
  36 HEAP_alloc ( DWORD len )
  37 {
  38   /* make sure hProcessHeap gets initialized by GdiProcessSetup before we get here */
  39   assert(hProcessHeap);
  40   return RtlAllocateHeap ( hProcessHeap, 0, len );
  41 }
  42
  43 NTSTATUS
  44 HEAP_strdupA2W ( LPWSTR* ppszW, LPCSTR lpszA )
  45 {
  46   ULONG len;
  47   NTSTATUS Status;
  48
  49   *ppszW = NULL;
  50   if ( !lpszA )
  51     return STATUS_SUCCESS;
  52   len = lstrlenA(lpszA);
  53
  54   *ppszW = HEAP_alloc ( (len+1) * sizeof(WCHAR) );
  55   if ( !*ppszW )
  56     return STATUS_NO_MEMORY;
  57   Status = RtlMultiByteToUnicodeN ( *ppszW, len*sizeof(WCHAR), NULL, (PCHAR)lpszA, len );
  58   (*ppszW)[len] = L'\0';
  59   return Status;
  60 }
  61
  62
  63 VOID
  64 HEAP_free ( LPVOID memory )
  65 {
  66   /* make sure hProcessHeap gets initialized by GdiProcessSetup before we get here */
  67   assert(hProcessHeap);
  68
  69   RtlFreeHeap ( hProcessHeap, 0, memory );
  70 }