| 1 | /* $Id: ClientToken.h 47561 2013-08-06 15:18:17Z vboxsync $ */
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| 2 |
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| 3 | /** @file
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| 4 | *
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| 5 | * VirtualBox API client token abstraction
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| 6 | */
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| 7 |
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| 8 | /*
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| 9 | * Copyright (C) 2013 Oracle Corporation
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| 10 | *
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| 11 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 12 | * available from http://www.virtualbox.org. This file is free software;
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| 13 | * you can redistribute it and/or modify it under the terms of the GNU
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| 14 | * General Public License (GPL) as published by the Free Software
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| 15 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 16 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 17 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 18 | */
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| 19 |
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| 20 | #ifndef ____H_CLIENTTOKEN
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| 21 | #define ____H_CLIENTTOKEN
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| 22 |
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| 23 | #include <VBox/com/ptr.h>
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| 24 | #include <VBox/com/AutoLock.h>
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| 25 |
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| 26 | #include "MachineImpl.h"
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| 27 |
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| 28 | #if defined(RT_OS_WINDOWS)
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| 29 | # define CTTOKENARG NULL
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| 30 | # define CTTOKENTYPE HANDLE
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| 31 | #elif defined(RT_OS_OS2)
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| 32 | # define CTTOKENARG NULLHANDLE
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| 33 | # define CTTOKENTYPE HMTX
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| 34 | #elif defined(VBOX_WITH_SYS_V_IPC_SESSION_WATCHER)
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| 35 | # define CTTOKENARG -1
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| 36 | # define CTTOKENTYPE int
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| 37 | #else
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| 38 | # error "Port me!"
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| 39 | #endif
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| 40 |
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| 41 | /**
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| 42 | * Class which represents a token which can be used to check for client
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| 43 | * crashes and similar purposes.
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| 44 | */
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| 45 | class Machine::ClientToken
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| 46 | {
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| 47 | public:
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| 48 | /**
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| 49 | * Constructor which creates a usable instance
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| 50 | *
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| 51 | * @param pMachine Reference to Machine object
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| 52 | */
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| 53 | ClientToken(const ComObjPtr<Machine> &pMachine);
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| 54 |
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| 55 | /**
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| 56 | * Default destructor. Cleans everything up.
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| 57 | */
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| 58 | ~ClientToken();
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| 59 |
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| 60 | /**
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| 61 | * Check if object contains a usable token.
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| 62 | */
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| 63 | bool isReady();
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| 64 |
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| 65 | /**
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| 66 | * Query token ID, which is a unique string value for this token. Do not
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| 67 | * assume any specific content/format, it is opaque information.
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| 68 | */
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| 69 | void getId(Utf8Str &strId);
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| 70 |
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| 71 | /**
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| 72 | * Query token, which is platform dependent.
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| 73 | */
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| 74 | CTTOKENTYPE getToken();
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| 75 |
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| 76 | /**
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| 77 | * Release token now. Returns information if the client has terminated.
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| 78 | */
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| 79 | bool release();
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| 80 |
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| 81 | private:
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| 82 | /**
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| 83 | * Default constructor. Don't use, will not create a sensible instance.
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| 84 | */
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| 85 | ClientToken();
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| 86 |
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| 87 | Machine *mMachine;
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| 88 | CTTOKENTYPE mClientToken;
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| 89 | Utf8Str mClientTokenId;
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| 90 | };
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| 91 |
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| 92 | #endif /* !____H_CLIENTTOKEN */
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| 93 | /* vi: set tabstop=4 shiftwidth=4 expandtab: */
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