VirtualBox

source: vbox/trunk/src/VBox/Runtime/include/internal/mem.h@ 58389

Last change on this file since 58389 was 58269, checked in by vboxsync, 9 years ago

iprt/r0drv: untested electrical heap alloc functions.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 2.2 KB
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1/* $Id: mem.h 58269 2015-10-15 18:29:21Z vboxsync $ */
2/** @file
3 * IPRT - Memory Management.
4 */
5
6/*
7 * Copyright (C) 2010-2015 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#ifndef ___internal_mem_h
28#define ___internal_mem_h
29
30#include <iprt/cdefs.h>
31
32RT_C_DECLS_BEGIN
33
34/**
35 * Special allocation method that does not have any IPRT dependencies.
36 *
37 * This is suitable for allocating memory for IPRT heaps, pools, caches, memory
38 * trackers, semaphores and similar that end up in bootstrap depencency hell
39 * otherwise.
40 *
41 * @returns Pointer to the allocated memory, NULL on failure. Must be freed by
42 * calling rtMemBaseFree().
43 * @param cb The number of bytes to allocate.
44 */
45DECLHIDDEN(void *) rtMemBaseAlloc(size_t cb);
46
47/**
48 * Frees memory allocated by rtInitAlloc().
49 *
50 * @param pv What rtInitAlloc() returned.
51 */
52DECLHIDDEN(void) rtMemBaseFree(void *pv);
53
54
55#ifdef IN_RING0
56/** @def RTR0MEM_WITH_EF_APIS
57 * Enables the electrict fence APIs.
58 *
59 * Requires working rtR0MemObjNativeProtect implementation, thus the current
60 * OS restrictions.
61 */
62# if defined(RT_OS_DARWIN) || defined(RT_OS_FREEBSD) || defined(DOXYGEN_RUNNING)
63# define RTR0MEM_WITH_EF_APIS
64# endif
65# ifdef RTR0MEM_WITH_EF_APIS
66DECLHIDDEN(void) rtR0MemEfInit(void);
67DECLHIDDEN(void) rtR0MemEfTerm(void);
68# endif
69#endif
70
71RT_C_DECLS_END
72
73#endif
74
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