VirtualBox

source: vbox/trunk/src/VBox/Main/include/ClientToken.h@ 98694

Last change on this file since 98694 was 98103, checked in by vboxsync, 2 years ago

Copyright year updates by scm.

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1/* $Id: ClientToken.h 98103 2023-01-17 14:15:46Z vboxsync $ */
2
3/** @file
4 *
5 * VirtualBox API client session token abstraction
6 */
7
8/*
9 * Copyright (C) 2013-2023 Oracle and/or its affiliates.
10 *
11 * This file is part of VirtualBox base platform packages, as
12 * available from https://www.virtualbox.org.
13 *
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License
16 * as published by the Free Software Foundation, in version 3 of the
17 * License.
18 *
19 * This program is distributed in the hope that it will be useful, but
20 * WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22 * General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, see <https://www.gnu.org/licenses>.
26 *
27 * SPDX-License-Identifier: GPL-3.0-only
28 */
29
30#ifndef MAIN_INCLUDED_ClientToken_h
31#define MAIN_INCLUDED_ClientToken_h
32#ifndef RT_WITHOUT_PRAGMA_ONCE
33# pragma once
34#endif
35
36#include <VBox/com/ptr.h>
37#include <VBox/com/AutoLock.h>
38
39#include "MachineImpl.h"
40#ifdef VBOX_WITH_GENERIC_SESSION_WATCHER
41# include "TokenImpl.h"
42#endif /* VBOX_WITH_GENERIC_SESSION_WATCHER */
43
44#if defined(RT_OS_WINDOWS)
45# define CTTOKENARG NULL
46# define CTTOKENTYPE HANDLE
47#elif defined(RT_OS_OS2)
48# define CTTOKENARG NULLHANDLE
49# define CTTOKENTYPE HMTX
50#elif defined(VBOX_WITH_SYS_V_IPC_SESSION_WATCHER)
51# define CTTOKENARG -1
52# define CTTOKENTYPE int
53#elif defined(VBOX_WITH_GENERIC_SESSION_WATCHER)
54# define CTTOKENARG NULL
55# define CTTOKENTYPE MachineToken *
56#else
57# error "Port me!"
58#endif
59
60/**
61 * Class which represents a token which can be used to check for client
62 * crashes and similar purposes.
63 */
64class Machine::ClientToken
65{
66public:
67 /**
68 * Constructor which creates a usable instance
69 *
70 * @param pMachine Reference to Machine object
71 * @param pSessionMachine Reference to corresponding SessionMachine object
72 */
73 ClientToken(const ComObjPtr<Machine> &pMachine, SessionMachine *pSessionMachine);
74
75 /**
76 * Default destructor. Cleans everything up.
77 */
78 ~ClientToken();
79
80 /**
81 * Check if object contains a usable token.
82 */
83 bool isReady();
84
85 /**
86 * Query token ID, which is a unique string value for this token. Do not
87 * assume any specific content/format, it is opaque information.
88 */
89 void getId(Utf8Str &strId);
90
91 /**
92 * Query token, which is platform dependent.
93 */
94 CTTOKENTYPE getToken();
95
96#ifndef VBOX_WITH_GENERIC_SESSION_WATCHER
97 /**
98 * Release token now. Returns information if the client has terminated.
99 */
100 bool release();
101#endif /* !VBOX_WITH_GENERIC_SESSION_WATCHER */
102
103private:
104 /**
105 * Default constructor. Don't use, will not create a sensible instance.
106 */
107 ClientToken();
108
109 Machine *mMachine;
110 CTTOKENTYPE mClientToken;
111 Utf8Str mClientTokenId;
112#ifdef VBOX_WITH_GENERIC_SESSION_WATCHER
113 bool mClientTokenPassed;
114#endif
115};
116
117#endif /* !MAIN_INCLUDED_ClientToken_h */
118/* vi: set tabstop=4 shiftwidth=4 expandtab: */
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