145 lines
4.2 KiB
C++
145 lines
4.2 KiB
C++
/* OpenSceneGraph example, osgunittests.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <osg/Referenced>
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#include <osgDB/ReadFile>
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#include <OpenThreads/Thread>
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struct OSG_EXPORT RefBarrier : public osg::Referenced, public OpenThreads::Barrier
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{
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RefBarrier(int numThreads):
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OpenThreads::Barrier(numThreads) {}
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};
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class ReadThread : public osg::Referenced, public OpenThreads::Thread
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{
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public:
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ReadThread():
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_done(false)
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{
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}
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virtual ~ReadThread()
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{
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_done = true;
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while(isRunning()) OpenThreads::Thread::YieldCurrentThread();
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}
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void addFileName(const std::string& filename)
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{
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_fileNames.push_back(filename);
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}
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void setStartBarrier(RefBarrier* barrier) { _startBarrier = barrier; }
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void setEndBarrier(RefBarrier* barrier) { _endBarrier = barrier; }
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virtual void run()
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{
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if (_startBarrier.valid())
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{
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#if VERBOSE
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std::cout<<"Waiting on start block "<<this<<std::endl;
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#endif
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_startBarrier->block();
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}
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#if VERBOSE
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std::cout<<"Starting "<<this<<std::endl;
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#endif
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do
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{
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if (!_fileNames.empty())
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{
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// take front filename;
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std::string filename = _fileNames.front();
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_fileNames.erase(_fileNames.begin());
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#if VERBOSE
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std::cout<<"Reading "<<filename;
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#endif
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osg::ref_ptr<osg::Node> node = osgDB::readNodeFile(filename);
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#if VERBOSE
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if (node.valid()) std::cout<<".. OK"<<std::endl;
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else std::cout<<".. FAILED"<<std::endl;
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#endif
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}
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} while (!testCancel() && !_fileNames.empty() && !_done);
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if (_endBarrier.valid())
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{
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#if VERBOSE
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std::cout<<"Waiting on end block "<<this<<std::endl;
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#endif
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_endBarrier->block();
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}
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#if VERBOSE
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std::cout<<"Completed"<<this<<std::endl;
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#endif
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}
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typedef std::list<std::string> FileNames;
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FileNames _fileNames;
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bool _done;
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osg::ref_ptr<RefBarrier> _startBarrier;
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osg::ref_ptr<RefBarrier> _endBarrier;
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};
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void runMultiThreadReadTests(int numThreads)
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{
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#if VERBOSE
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osg::notify(osg::NOTICE)<<"runMultiThreadReadTests() -- running"<<std::endl;
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#endif
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osg::ref_ptr<RefBarrier> startBarrier = new RefBarrier(numThreads+1);
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osg::ref_ptr<RefBarrier> endBarrier = new RefBarrier(numThreads+1);
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typedef std::list< osg::ref_ptr<ReadThread> > ReadThreads;
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ReadThreads readThreads;
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for(unsigned int i=0; i<numThreads; ++i)
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{
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osg::ref_ptr<ReadThread> readThread = new ReadThread;
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readThread->setProcessorAffinity(numThreads % 4);
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readThread->setStartBarrier(startBarrier.get());
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readThread->setEndBarrier(endBarrier.get());
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readThread->addFileName("cessna.osg");
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readThread->addFileName("glider.osg");
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readThread->addFileName("town.ive");
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readThreads.push_back(readThread.get());
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readThread->start();
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}
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startBarrier->block();
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endBarrier->block();
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#if VERBOSE
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osg::notify(osg::NOTICE)<<"runMultiThreadReadTests() -- completed."<<std::endl;
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#endif
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}
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