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62 lines
3.1 KiB
C++
62 lines
3.1 KiB
C++
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2025 *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a copy of this *
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* software and associated documentation files (the "Software"), to deal in the Software *
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* without restriction, including without limitation the rights to use, copy, modify, *
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* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
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* permit persons to whom the Software is furnished to do so, subject to the following *
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* conditions: *
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* *
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* The above copyright notice and this permission notice shall be included in all copies *
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* or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
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* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT *
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE *
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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****************************************************************************************/
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#ifndef __OPENSPACE_CORE___SCENEINITIALIZER___H__
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#define __OPENSPACE_CORE___SCENEINITIALIZER___H__
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#include <openspace/util/threadpool.h>
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#include <unordered_set>
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#include <mutex>
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#include <vector>
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namespace openspace {
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class SceneGraphNode;
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/**
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* This class is responsible for initializing nodes, in a multithreaded fashion if needed,
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* that are passed into it. The constructor takes the number of extra separate threads
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* that are used to initialize nodes. Passing `0` for the number of threads results in
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* nodes being initialized on the main thread instead.
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*/
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class SceneInitializer {
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public:
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explicit SceneInitializer(unsigned int nThreads = 0);
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void initializeNode(SceneGraphNode* node);
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std::vector<SceneGraphNode*> takeInitializedNodes();
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bool isInitializing() const;
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private:
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std::vector<SceneGraphNode*> _initializedNodes;
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std::unordered_set<SceneGraphNode*> _initializingNodes;
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const unsigned int _nThreads;
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ThreadPool _threadPool;
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mutable std::mutex _mutex;
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};
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} // namespace openspace
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#endif // __OPENSPACE_CORE___SCENEINITIALIZER___H__
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