[Interest] QThread

[Graham Labdon]

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

Thanks again

-----Original Message-----
From: interest-bounces+graham.labdon=avalonsciences.com at qt-project.org [mailto:interest-bounces+graham.labdon=avalonsciences.com at qt-project.org] On Behalf Of André Somers
Sent: 24 March 2014 12:06
To: interest at 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

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