| 1 | /** @file
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| 2 | * MS COM / XPCOM Abstraction Layer - COM initialization / shutdown.
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| 3 | */
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| 4 |
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| 5 | /*
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| 6 | * Copyright (C) 2005-2020 Oracle Corporation
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| 7 | *
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| 8 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 9 | * available from http://www.virtualbox.org. This file is free software;
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| 10 | * you can redistribute it and/or modify it under the terms of the GNU
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| 11 | * General Public License (GPL) as published by the Free Software
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| 12 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 13 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 14 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 15 | *
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| 16 | * The contents of this file may alternatively be used under the terms
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| 17 | * of the Common Development and Distribution License Version 1.0
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| 18 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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| 19 | * VirtualBox OSE distribution, in which case the provisions of the
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| 20 | * CDDL are applicable instead of those of the GPL.
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| 21 | *
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| 22 | * You may elect to license modified versions of this file under the
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| 23 | * terms and conditions of either the GPL or the CDDL or both.
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| 24 | */
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| 25 |
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| 26 | #ifndef VBOX_INCLUDED_com_com_h
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| 27 | #define VBOX_INCLUDED_com_com_h
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| 28 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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| 29 | # pragma once
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| 30 | #endif
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| 31 |
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| 32 | #include "VBox/com/defs.h"
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| 33 | #include "VBox/com/utils.h"
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| 34 |
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| 35 | /** @defgroup grp_com MS COM / XPCOM Abstraction Layer
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| 36 | * @{
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| 37 | */
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| 38 |
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| 39 | namespace com
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| 40 | {
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| 41 |
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| 42 | /** @name VBOX_COM_INIT_F_XXX - flags for com::Initialize().
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| 43 | * @{ */
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| 44 | /** Windows: Caller is the GUI and needs a STA rather than MTA apartment. */
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| 45 | #define VBOX_COM_INIT_F_GUI RT_BIT_32(0)
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| 46 | /** Windows: Auto registration updating, if privileged enough. */
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| 47 | #define VBOX_COM_INIT_F_AUTO_REG_UPDATE RT_BIT_32(1)
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| 48 | /** Windows: Opt-out of COM patching (client code should do this). */
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| 49 | #define VBOX_COM_INIT_F_NO_COM_PATCHING RT_BIT_32(2)
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| 50 | /** The default flags. */
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| 51 | #define VBOX_COM_INIT_F_DEFAULT (VBOX_COM_INIT_F_AUTO_REG_UPDATE)
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| 52 | /** @} */
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| 53 |
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| 54 | /**
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| 55 | * Initializes the COM runtime.
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| 56 | *
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| 57 | * Must be called on the main thread, before any COM activity in any thread, and by any thread
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| 58 | * willing to perform COM operations.
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| 59 | *
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| 60 | * @return COM result code
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| 61 | */
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| 62 | HRESULT Initialize(uint32_t fInitFlags = VBOX_COM_INIT_F_DEFAULT);
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| 63 |
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| 64 | /**
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| 65 | * Shuts down the COM runtime.
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| 66 | *
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| 67 | * Must be called on the main thread before termination.
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| 68 | * No COM calls may be made in any thread after this method returns.
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| 69 | */
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| 70 | HRESULT Shutdown();
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| 71 |
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| 72 | /**
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| 73 | * Resolves a given interface ID to a string containing the interface name.
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| 74 | *
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| 75 | * If, for some reason, the given IID cannot be resolved to a name, a NULL
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| 76 | * string is returned. A non-NULL string returned by this function must be
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| 77 | * freed using SysFreeString().
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| 78 | *
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| 79 | * @param aIID ID of the interface to get a name for
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| 80 | * @param aName Resolved interface name or @c NULL on error
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| 81 | */
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| 82 | void GetInterfaceNameByIID(const GUID &aIID, BSTR *aName);
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| 83 |
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| 84 | #ifdef RT_OS_WINDOWS
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| 85 | void PatchComBugs(void);
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| 86 | #endif
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| 87 |
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| 88 | } /* namespace com */
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| 89 |
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| 90 | /** @} */
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| 91 | #endif /* !VBOX_INCLUDED_com_com_h */
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| 92 |
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