alloc-r0drv.h revision 590bfe12ce22cd3716448fbb9f4dc51664bfe5e2
/* $Id$ */
/** @file
* IPRT - Memory Allocation, Ring-0 Driver.
*/
/*
* Copyright (C) 2006-2007 Sun Microsystems, Inc.
*
* 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.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 USA or visit http://www.sun.com if you need
* additional information or have any questions.
*/
#ifndef ___r0drv_alloc_r0drv_h
#define ___r0drv_alloc_r0drv_h
#include <iprt/cdefs.h>
#include <iprt/types.h>
#include "internal/magics.h"
RT_C_DECLS_BEGIN
/**
* Header which heading all memory blocks.
*/
typedef struct RTMEMHDR
{
/** Magic (RTMEMHDR_MAGIC). */
uint32_t u32Magic;
/** Block flags (RTMEMHDR_FLAG_*). */
uint32_t fFlags;
/** The actual size of the block. */
uint32_t cb;
/** The request allocation size. */
uint32_t cbReq;
} RTMEMHDR, *PRTMEMHDR;
/** @name RTMEMHDR::fFlags.
* @{ */
#define RTMEMHDR_FLAG_ZEROED RT_BIT(0)
#define RTMEMHDR_FLAG_EXEC RT_BIT(1)
#ifdef RT_OS_LINUX
#define RTMEMHDR_FLAG_EXEC_HEAP RT_BIT(30)
#define RTMEMHDR_FLAG_KMALLOC RT_BIT(31)
#endif
/** @} */
PRTMEMHDR rtMemAlloc(size_t cb, uint32_t fFlags);
void rtMemFree(PRTMEMHDR pHdr);
RT_C_DECLS_END
#endif