| 1 | /** @file
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| 2 | * VirtualBox ThreadTask class definition
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| 3 | */
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| 4 |
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| 5 | /*
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| 6 | * Copyright (C) 2015-2016 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 |
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| 17 | #ifndef ____H_THREADTASK
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| 18 | #define ____H_THREADTASK
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| 19 |
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| 20 | #include "VBox/com/string.h"
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| 21 |
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| 22 | /**
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| 23 | * The class ThreadVoidData is used as a base class for any data which we want to pass into a thread
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| 24 | */
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| 25 | struct ThreadVoidData
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| 26 | {
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| 27 | public:
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| 28 | ThreadVoidData() { }
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| 29 | virtual ~ThreadVoidData() { }
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| 30 | };
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| 31 |
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| 32 |
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| 33 | class ThreadTask
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| 34 | {
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| 35 | public:
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| 36 | ThreadTask(const Utf8Str &t)
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| 37 | : m_hThread(NIL_RTTHREAD)
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| 38 | , m_strTaskName(t)
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| 39 | , mAsync(false)
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| 40 | { }
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| 41 |
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| 42 | virtual ~ThreadTask()
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| 43 | { }
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| 44 |
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| 45 | HRESULT createThread(void);
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| 46 | HRESULT createThreadWithType(RTTHREADTYPE enmType);
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| 47 | HRESULT createThreadWithRaceCondition(PRTTHREAD pThread);
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| 48 |
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| 49 | inline Utf8Str getTaskName() const { return m_strTaskName; }
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| 50 | bool isAsync() { return mAsync; }
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| 51 |
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| 52 | protected:
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| 53 | HRESULT createThreadInternal(RTTHREADTYPE enmType, PRTTHREAD pThread);
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| 54 | static DECLCALLBACK(int) taskHandlerThreadProc(RTTHREAD thread, void *pvUser);
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| 55 |
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| 56 | ThreadTask() : m_hThread(NIL_RTTHREAD), m_strTaskName("GenericTask")
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| 57 | { }
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| 58 |
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| 59 | /** The worker thread handle (may be invalid if the thread has shut down). */
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| 60 | RTTHREAD m_hThread;
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| 61 | Utf8Str m_strTaskName;
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| 62 | bool mAsync;
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| 63 |
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| 64 | private:
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| 65 | virtual void handler() = 0;
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| 66 | };
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| 67 |
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| 68 | #endif
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| 69 |
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