william.croc...@analog.com schreef op 24-3-2014 13:34: > On 03/24/2014 08:10 AM, Graham Labdon wrote: >> Thanks for that - my ui is now responsive >> What is the correct way to stop my thread running? >> I tried m_thread->exit() but it still continues >> > Have it periodically check a global, (mutex-protected?) > variable and then terminate (by returning from the run() > function) voluntarily. Protecting it with a mutex is usually not needed, and it doesn't need to be global either. However, you may want to use a QAtomicInt or a volatile bool as your flag type, and you can make that a member variable of your worker class that can be set with a simple method call.
André > >> Thanks again >> >> -----Original Message----- >> From: interest-bounces+graham.labdon=avalonsciences....@qt-project.org >> [mailto:interest-bounces+graham.labdon=avalonsciences....@qt-project.org] On >> Behalf Of André Somers >> Sent: 24 March 2014 12:06 >> To: interest@qt-project.org >> Subject: Re: [Interest] QThread >> >> Graham Labdon schreef op 24-3-2014 12:38: >>> Hi >>> I am experimenting with QThreads >>> The basic idea is to have a thread performing some task and to have a >>> button on the UI that can stop this operation >>> >>> So I have a class that will perform the operation called >>> GeneratorThread that has a start slot In the main ui class I create an >>> instance of the class - >>> >>> m_generatorThread = new GeneratorThread(this); >>> >>> Then I call moveToThread and make the connections- >>> m_generatorThread->moveToThread(m_thread) >>> connect(m_thread,&QThread::started,m_generatorThread,& >>> GeneratorThread::start); >>> connect(m_generatorThread,&GeneratorThread::finished,m_thread,&QThread >>> ::quit); >>> connect(m_generatorThread,&GeneratorThread::finished,m_generatorThread >>> ,&GeneratorThread::deleteLater); >>> connect(m_thread,&QThread::finished,m_generatorThread,&GeneratorThread >>> ::deleteLater); >>> >>> And finally I start the thread >>> m_thread->start() >>> >>> The generatorThread simply writes a debug message every second and I see >>> this happening. >>> The problem is that my ui does not respond to any input - so my stop >>> button will not work >>> >>> I am obviously doing something wrong and would appreciate any help >> Yeah, you are doing some things wrong. >> Your moveToThread will fail, because GeneratorThread (confusing name for >> what seems to be a worker class?) has a parent. That causes that your worker >> is not in a different thread at all, but blocking your main thread instead. >> >> André >> >> _______________________________________________ >> Interest mailing list >> Interest@qt-project.org >> http://lists.qt-project.org/mailman/listinfo/interest >> _______________________________________________ >> Interest mailing list >> Interest@qt-project.org >> http://lists.qt-project.org/mailman/listinfo/interest >> >> > > _______________________________________________ > Interest mailing list > Interest@qt-project.org > http://lists.qt-project.org/mailman/listinfo/interest _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
