VirtualBox

source: vbox/trunk/include/VBox/pdmcritsect.h@ 20866

Last change on this file since 20866 was 20753, checked in by vboxsync, 15 years ago

VMM: Added PDMR3CritSectLeaveAll for bulk unlocking during guru meditation.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Id
File size: 3.0 KB
Line 
1/** @file
2 * PDM - Pluggable Device Manager, Critical Sections.
3 */
4
5/*
6 * Copyright (C) 2006-2007 Sun Microsystems, Inc.
7 *
8 * This file is part of VirtualBox Open Source Edition (OSE), as
9 * available from http://www.virtualbox.org. This file is free software;
10 * you can redistribute it and/or modify it under the terms of the GNU
11 * General Public License (GPL) as published by the Free Software
12 * Foundation, in version 2 as it comes in the "COPYING" file of the
13 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
14 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
15 *
16 * The contents of this file may alternatively be used under the terms
17 * of the Common Development and Distribution License Version 1.0
18 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
19 * VirtualBox OSE distribution, in which case the provisions of the
20 * CDDL are applicable instead of those of the GPL.
21 *
22 * You may elect to license modified versions of this file under the
23 * terms and conditions of either the GPL or the CDDL or both.
24 *
25 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
26 * Clara, CA 95054 USA or visit http://www.sun.com if you need
27 * additional information or have any questions.
28 */
29
30#ifndef ___VBox_pdmcritsect_h
31#define ___VBox_pdmcritsect_h
32
33#include <VBox/types.h>
34#include <iprt/critsect.h>
35
36RT_C_DECLS_BEGIN
37
38/** @defgroup grp_pdm_critsect The PDM Critical Section API
39 * @ingroup grp_pdm
40 * @{
41 */
42
43/**
44 * A PDM critical section.
45 * Initialize using PDMDRVHLP::pfnCritSectInit().
46 */
47typedef union PDMCRITSECT
48{
49 /** Padding. */
50 uint8_t padding[HC_ARCH_BITS == 64 ? 0xb8 : 0xa8];
51#ifdef PDMCRITSECTINT_DECLARED
52 /** The internal structure (not normally visible). */
53 struct PDMCRITSECTINT s;
54#endif
55} PDMCRITSECT;
56
57VMMR3DECL(int) PDMR3CritSectInit(PVM pVM, PPDMCRITSECT pCritSect, const char *pszName);
58VMMDECL(int) PDMCritSectEnter(PPDMCRITSECT pCritSect, int rcBusy);
59VMMDECL(int) PDMCritSectTryEnter(PPDMCRITSECT pCritSect);
60VMMR3DECL(int) PDMR3CritSectEnterEx(PPDMCRITSECT pCritSect, bool fCallHost);
61VMMDECL(void) PDMCritSectLeave(PPDMCRITSECT pCritSect);
62VMMDECL(bool) PDMCritSectIsOwner(PCPDMCRITSECT pCritSect);
63VMMDECL(bool) PDMCritSectIsOwnerEx(PCPDMCRITSECT pCritSect, VMCPUID idCpu);
64VMMDECL(bool) PDMCritSectIsOwned(PCPDMCRITSECT pCritSect);
65VMMDECL(bool) PDMCritSectIsInitialized(PCPDMCRITSECT pCritSect);
66VMMDECL(uint32_t) PDMCritSectGetRecursion(PCPDMCRITSECT pCritSect);
67VMMR3DECL(const char *) PDMR3CritSectName(PCPDMCRITSECT pCritSect);
68VMMR3DECL(int) PDMR3CritSectScheduleExitEvent(PPDMCRITSECT pCritSect, RTSEMEVENT EventToSignal);
69VMMR3DECL(int) PDMR3CritSectDelete(PPDMCRITSECT pCritSect);
70VMMDECL(int) PDMR3CritSectTerm(PVM pVM);
71VMMDECL(void) PDMCritSectFF(PVMCPU pVCpu);
72VMMR3DECL(uint32_t) PDMR3CritSectCountOwned(PVM pVM, char *pszNames, size_t cbNames);
73VMMR3DECL(void) PDMR3CritSectLeaveAll(PVM pVM);
74
75/** @} */
76
77RT_C_DECLS_END
78
79#endif
80
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