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/* $Id: mem.h $ */
/** @file
* IPRT - Memory Management.
*/
/*
* Copyright (C) 2010-2019 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.
*/
#ifndef IPRT_INCLUDED_INTERNAL_mem_h
#define IPRT_INCLUDED_INTERNAL_mem_h
#ifndef RT_WITHOUT_PRAGMA_ONCE
# pragma once
#endif
#include <iprt/cdefs.h>
RT_C_DECLS_BEGIN
/**
* Special allocation method that does not have any IPRT dependencies.
*
* This is suitable for allocating memory for IPRT heaps, pools, caches, memory
* trackers, semaphores and similar that end up in bootstrap depencency hell
* otherwise.
*
* @returns Pointer to the allocated memory, NULL on failure. Must be freed by
* calling rtMemBaseFree().
* @param cb The number of bytes to allocate.
*/
DECLHIDDEN(void *) rtMemBaseAlloc(size_t cb);
/**
* Frees memory allocated by rtInitAlloc().
*
* @param pv What rtInitAlloc() returned.
*/
DECLHIDDEN(void) rtMemBaseFree(void *pv);
#ifdef IN_RING0
/** @def RTR0MEM_WITH_EF_APIS
* Enables the electrict fence APIs.
*
* Requires working rtR0MemObjNativeProtect implementation, thus the current
* OS restrictions.
*/
# if defined(RT_OS_DARWIN) || defined(RT_OS_FREEBSD) || defined(DOXYGEN_RUNNING)
# define RTR0MEM_WITH_EF_APIS
# endif
# ifdef RTR0MEM_WITH_EF_APIS
DECLHIDDEN(void) rtR0MemEfInit(void);
DECLHIDDEN(void) rtR0MemEfTerm(void);
# endif
#endif
RT_C_DECLS_END
#endif /* !IPRT_INCLUDED_INTERNAL_mem_h */
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