| 1 | /* -*- C++ -*- |
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| 2 | This file is part of ThreadWeaver. It declares the Thread class. |
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| 3 | |
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| 4 | SPDX-FileCopyrightText: 2004-2013 Mirko Boehm <mirko@kde.org> |
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| 5 | |
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| 6 | SPDX-License-Identifier: LGPL-2.0-or-later |
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| 7 | */ |
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| 8 | |
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| 9 | #ifndef THREADWEAVER_THREAD_H |
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| 10 | #define THREADWEAVER_THREAD_H |
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| 11 | |
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| 12 | #include <QMutex> |
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| 13 | #include <QThread> |
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| 14 | |
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| 15 | #include "jobpointer.h" |
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| 16 | #include "threadweaver_export.h" |
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| 17 | |
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| 18 | namespace ThreadWeaver |
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| 19 | { |
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| 20 | class Job; |
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| 21 | class Weaver; |
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| 22 | |
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| 23 | /** @brief Thread represents a worker thread in a Queue's inventory. |
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| 24 | * |
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| 25 | * Threads are created and managed by queues on demand. A Thread will try to retrieve and process |
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| 26 | * jobs from the queue until it is told to exit. */ |
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| 27 | class THREADWEAVER_EXPORT Thread : public QThread |
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| 28 | { |
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| 29 | Q_OBJECT |
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| 30 | public: |
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| 31 | /** @brief Create a thread. |
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| 32 | * |
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| 33 | * @param parent the parent Weaver |
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| 34 | */ |
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| 35 | explicit Thread(Weaver *parent = nullptr); |
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| 36 | |
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| 37 | /** The destructor. */ |
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| 38 | ~Thread() override; |
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| 39 | |
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| 40 | /** @brief The run method is reimplemented to execute jobs from the queue. |
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| 41 | * |
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| 42 | * Whenever the thread is idle, it will ask its Weaver parent for a Job to do. The Weaver will either return a Job or a null |
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| 43 | * pointer. When a null pointer is returned, it tells the thread to exit. |
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| 44 | */ |
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| 45 | void run() override; |
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| 46 | |
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| 47 | /** @brief Returns the thread id. |
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| 48 | * |
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| 49 | * This id marks the respective Thread object, and must therefore not be confused with, e.g., the pthread thread ID. |
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| 50 | * The way threads are implemented and identified is platform specific. id() is the only way to uniquely identify a thread |
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| 51 | * within ThreadWeaver. |
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| 52 | */ |
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| 53 | unsigned int id() const; |
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| 54 | |
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| 55 | /** @brief Request the abortion of the job that is processed currently. |
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| 56 | * |
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| 57 | * If there is no current job, this method will do nothing, but can safely be called. It forwards the request to the |
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| 58 | * current Job. |
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| 59 | */ |
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| 60 | void requestAbort(); |
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| 61 | |
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| 62 | private: |
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| 63 | class Private; |
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| 64 | Private *const d; |
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| 65 | }; |
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| 66 | |
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| 67 | } |
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| 68 | |
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| 69 | #endif |
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| 70 | |
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