Newbie threading question

[marcel]

This will not work! Because:

1. Current situation

connect(this, SIGNAL(needSleep(unsigned int)), 
            mythread, SLOT(sleepFor(unsigned int)) , Qt::QueuedConnection);

connect(this, SIGNAL(needSleep(unsigned int)), 
            mythread, SLOT(sleepFor(unsigned int)) , Qt::QueuedConnection);

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This will post an event to the thread's event queue instead of calling sleepFor directly. Wrong again because sleepFor will be called from the thread's event queue and also affects the applications event dispatcher ( will freeze again ).
I have attached a screenshot for the second case. As you can see the event dispatcher does not exit until sleepFor finishes.

Solution:
Do not sleep in the event handler.

EDIT: Actually, the first case does not apply ( ). It is still QueuedConnections, since is another thread.

Regards