| 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) 2005-2012 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_com_com_h
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| 27 | #define ___VBox_com_com_h
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| 28 |
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| 29 | #include "VBox/com/defs.h"
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| 30 |
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| 31 | namespace com
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| 32 | {
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| 33 |
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| 34 | /**
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| 35 | * Initializes the COM runtime.
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| 36 | * Must be called on the main thread, before any COM activity in any thread, and by any thread
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| 37 | * willing to perform COM operations.
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| 38 | *
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| 39 | * @param fMain if call is performed on the GUI thread
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| 40 | * @return COM result code
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| 41 | */
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| 42 | HRESULT Initialize(bool fGui = false);
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| 43 |
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| 44 | /**
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| 45 | * Shuts down the COM runtime.
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| 46 | * Must be called on the main thread before termination.
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| 47 | * No COM calls may be made in any thread after this method returns.
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| 48 | */
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| 49 | HRESULT Shutdown();
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| 50 |
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| 51 | /**
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| 52 | * Resolves a given interface ID to a string containing the interface name.
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| 53 | * If, for some reason, the given IID cannot be resolved to a name, a NULL
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| 54 | * string is returned. A non-NULL string returned by this function must be
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| 55 | * freed using SysFreeString().
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| 56 | *
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| 57 | * @param aIID ID of the interface to get a name for
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| 58 | * @param aName Resolved interface name or @c NULL on error
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| 59 | */
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| 60 | void GetInterfaceNameByIID(const GUID &aIID, BSTR *aName);
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| 61 |
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| 62 | /**
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| 63 | * Returns the VirtualBox user home directory.
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| 64 | *
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| 65 | * On failure, this function will return a path that caused a failure (or
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| 66 | * NULL if the failure is not path-related).
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| 67 | *
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| 68 | * On success, this function will try to create the returned directory if it
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| 69 | * doesn't exist yet. This may also fail with the corresponding status code.
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| 70 | *
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| 71 | * If @a aDirLen is smaller than RTPATH_MAX then there is a great chance that
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| 72 | * this method will return VERR_BUFFER_OVERFLOW.
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| 73 | *
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| 74 | * @param aDir Buffer to store the directory string in UTF-8 encoding.
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| 75 | * @param aDirLen Length of the supplied buffer including space for the
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| 76 | * terminating null character, in bytes.
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| 77 | * @param fCreateDir Flag whether to create the returned directory on success if it
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| 78 | * doesn't exist.
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| 79 | * @return VBox status code.
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| 80 | */
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| 81 | int GetVBoxUserHomeDirectory(char *aDir, size_t aDirLen, bool fCreateDir = true);
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| 82 |
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| 83 | /**
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| 84 | * Creates a release log file, used both in VBoxSVC and in API clients.
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| 85 | *
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| 86 | * @param pcszEntity Human readable name of the program.
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| 87 | * @param pcszLogFile Name of the release log file.
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| 88 | * @param fFlags Logger instance flags.
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| 89 | * @param pcszGroupSettings Group logging settings.
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| 90 | * @param pcszEnvVarBase Base environment variable name for the logger.
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| 91 | * @param fDestFlags Logger destination flags.
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| 92 | * @param cMaxEntriesPerGroup Limit for log entries per group. UINT32_MAX for no limit.
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| 93 | * @param cHistory Number of old log files to keep.
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| 94 | * @param uHistoryFileTime Maximum amount of time to put in a log file.
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| 95 | * @param uHistoryFileSize Maximum size of a log file before rotating.
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| 96 | * @param pszError In case of creation failure: buffer for error message.
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| 97 | * @param cbError Size of error message buffer.
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| 98 | * @return VBox status code.
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| 99 | */
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| 100 | int VBoxLogRelCreate(const char *pcszEntity, const char *pcszLogFile,
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| 101 | uint32_t fFlags, const char *pcszGroupSettings,
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| 102 | const char *pcszEnvVarBase, uint32_t fDestFlags,
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| 103 | uint32_t cMaxEntriesPerGroup, uint32_t cHistory,
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| 104 | uint32_t uHistoryFileTime, uint64_t uHistoryFileSize,
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| 105 | char *pszError, size_t cbError);
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| 106 |
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| 107 | } /* namespace com */
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| 108 |
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| 109 | #endif
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| 110 |
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