asn1-efence-allocator.cpp revision 3dc512cb5ac205b7ec7488b38b4b3c71c16bf885
/* $Id$ */
/** @file
* IPRT - ASN.1, Electric Fense Allocator.
*/
/*
* Copyright (C) 2006-2014 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*/
/*******************************************************************************
* Header Files *
*******************************************************************************/
#include "internal/iprt.h"
#include <iprt/asn1.h>
#include <iprt/mem.h>
#include <iprt/err.h>
#include <iprt/string.h>
/** @interface_method_impl{RTASN1ALLOCATORVTABLE, pfnFree} */
static DECLCALLBACK(void) rtAsn1EFenceAllocator_Free(PCRTASN1ALLOCATORVTABLE pThis, PRTASN1ALLOCATION pAllocation, void *pv)
{
RTMemEfFreeNP(pv);
pAllocation->cbAllocated = 0;
}
/** @interface_method_impl{RTASN1ALLOCATORVTABLE, pfnAlloc} */
static DECLCALLBACK(int) rtAsn1EFenceAllocator_Alloc(PCRTASN1ALLOCATORVTABLE pThis, PRTASN1ALLOCATION pAllocation,
void **ppv, size_t cb)
{
void *pv = RTMemEfAllocZNP(cb, RTMEM_TAG);
if (pv)
{
*ppv = pv;
pAllocation->cbAllocated = (uint32_t)cb;
return VINF_SUCCESS;
}
return VERR_NO_MEMORY;
}
/** @interface_method_impl{RTASN1ALLOCATORVTABLE, pfnRealloc} */
static DECLCALLBACK(int) rtAsn1EFenceAllocator_Realloc(PCRTASN1ALLOCATORVTABLE pThis, PRTASN1ALLOCATION pAllocation,
void *pvOld, void **ppvNew, size_t cbNew)
{
Assert(pvOld);
Assert(cbNew);
void *pv = RTMemEfReallocNP(pvOld, cbNew, RTMEM_TAG);
if (pv)
{
*ppvNew = pv;
pAllocation->cbAllocated = (uint32_t)cbNew;
return VINF_SUCCESS;
}
return VERR_NO_MEMORY;
}
/** The Electric Fence ASN.1 allocator. */
RT_DECL_DATA_CONST(RTASN1ALLOCATORVTABLE const) g_RTAsn1EFenceAllocator =
{
rtAsn1EFenceAllocator_Free,
rtAsn1EFenceAllocator_Alloc,
rtAsn1EFenceAllocator_Realloc
};