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1 | #pragma once |
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2 | |
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3 | #include <osg/Referenced> |
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4 | #include <osg/ref_ptr> |
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5 | #include <OpenThreads/Thread> |
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6 | #include <OpenThreads/Mutex> |
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7 | |
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8 | #include "ThreadWorkerBase.h" |
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9 | |
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10 | |
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11 | /** |
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12 | * \brief This class is a Thread Object which allows to create Functors and attach them to this thread object. |
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13 | * |
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14 | * Subclass ThreadWorkerBase to implement your own functor to execute your custom code threaded. |
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15 | * |
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16 | * Use setDone(true) to shut down the thread nonblocking, or call cancel() to shut down the thread blocking (both called from outside of the workerthread). |
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17 | * Inside the workerthread's functor, you can set the functor parameter done=true to shutdown the thread after the current execution. |
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18 | * |
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19 | * Use osg::ref_ptr pointer to manage the thread object. |
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20 | * This causes the threadobjects to get deleted finally and hence the threads aret canceled formally -> The app won't finish until all threads have finished their work. |
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21 | * |
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22 | * @author Torben Dannhauer |
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23 | * @date Okt 2012 |
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24 | */ |
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25 | class ThreadedWorker : public osg::Referenced, public OpenThreads::Thread |
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26 | { |
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27 | public: |
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28 | ThreadedWorker() ; |
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29 | ~ThreadedWorker(); //Destroying the thread object will implicit call cancel(), then the function will block until the thread has finished. |
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30 | virtual void run(); |
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31 | virtual int cancel(); |
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32 | |
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33 | void setDone(bool done); // signals the thread to stop but returns immediately. Use cancel if you want to wait blocking until the thread is canceled. |
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34 | bool getDone() const { return _done; } |
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35 | |
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36 | void setThreadWorker( ThreadWorkerBase* tworker); // This function sets the functor which should be executed threaded. Set NULL to remove the current functor and cancel the thread. |
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37 | ThreadWorkerBase* getCurrentThreadWorker() {return(_threadWorker);}; |
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38 | |
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39 | private: |
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40 | bool _done; |
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41 | osg::ref_ptr<ThreadWorkerBase> _threadWorker; |
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42 | OpenThreads::Mutex _threadWorkerMutex; // Ensures the functor is not replacable while it is executed |
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43 | }; |
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