[Qt-interest] Fwd: Re: Thread calling Thread and Signal/Slots

[Thiago Macieira]

Em Segunda-feira 30 Março 2009, às 18:06:59, Sean Harmer escreveu:
> If I call exec() then my thread is not doing anything anymore because it
> stops at exec()
>
>     void run()
>     {      
>         exec();
>         m_stopped = false;
>         Init();
>         Calculation();
>         emit finishedCalculation(!m_stopped);
>         m_stopped = true;
>     }
>
>
> so, how is exec() supposed to work ???

If you use exec(), you shouldn't place code in run().

You should react to signals sent. And then do the work in those slots.

However, your code doesn't look like it needs to receive signals. So you don't 
need exec() there.

One more thing: that m_stopped variable is not protected by any mutexes. Is it 
volatile?

-- 
Thiago Macieira - thiago.macieira (AT) nokia.com
  Senior Product Manager - Nokia, Qt Software
     Sandakerveien 116, NO-0402 Oslo, Norway
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