ubuntu/vbox/vboxguest/common/alloc/alloc.c

   1 /* $Id: alloc.cpp $ */
   2 /** @file
   3  * IPRT - Memory Allocation.
   4  */
   5
   6 /*
   7  * Copyright (C) 2006-2016 Oracle Corporation
   8  *
   9  * This file is part of VirtualBox Open Source Edition (OSE), as
  10  * available from http://www.virtualbox.org. This file is free software;
  11  * you can redistribute it and/or modify it under the terms of the GNU
  12  * General Public License (GPL) as published by the Free Software
  13  * Foundation, in version 2 as it comes in the "COPYING" file of the
  14  * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
  15  * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
  16  *
  17  * The contents of this file may alternatively be used under the terms
  18  * of the Common Development and Distribution License Version 1.0
  19  * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
  20  * VirtualBox OSE distribution, in which case the provisions of the
  21  * CDDL are applicable instead of those of the GPL.
  22  *
  23  * You may elect to license modified versions of this file under the
  24  * terms and conditions of either the GPL or the CDDL or both.
  25  */
  26
  27
  28 /*********************************************************************************************************************************
  29 *   Header Files                                                                                                                 *
  30 *********************************************************************************************************************************/
  31 #ifndef RTMEM_NO_WRAP_TO_EF_APIS
  32 # define RTMEM_NO_WRAP_TO_EF_APIS
  33 #endif
  34 #include <iprt/mem.h>
  35 #include "internal/iprt.h"
  36
  37 #include <iprt/assert.h>
  38 #include <iprt/string.h>
  39
  40
  41
  42 RTDECL(void *) RTMemDupTag(const void *pvSrc, size_t cb, const char *pszTag) RT_NO_THROW_DEF
  43 {
  44     void *pvDst = RTMemAllocTag(cb, pszTag);
  45     if (pvDst)
  46         memcpy(pvDst, pvSrc, cb);
  47     return pvDst;
  48 }
  49 RT_EXPORT_SYMBOL(RTMemDupTag);
  50
  51
  52 RTDECL(void *) RTMemDupExTag(const void *pvSrc, size_t cbSrc, size_t cbExtra, const char *pszTag) RT_NO_THROW_DEF
  53 {
  54     void *pvDst = RTMemAllocTag(cbSrc + cbExtra, pszTag);
  55     if (pvDst)
  56     {
  57         memcpy(pvDst, pvSrc, cbSrc);
  58         memset((uint8_t *)pvDst + cbSrc, 0, cbExtra);
  59     }
  60     return pvDst;
  61 }
  62 RT_EXPORT_SYMBOL(RTMemDupExTag);
  63