[Interest] General QTimer question
bthorsen at ics.com
Thu Dec 12 15:21:24 CET 2013
Den 12-12-2013 13:57, Jason Kretzer skrev:
> This is more a general question about the behavior of QTimer followed by
> a more specific instance of the question.
> What can make a QTimer not timeout()? In a general sense, what can make
> it miss its firing?
Only one thing: When timer timeouts are delayed. This can happen if you
starve the process so the event loop can't run. If the timeout period
has passed twice, you still only get one timeout(). But you will always
If you think the timer doesn't fire, you're looking at the wrong
problem. I guarantee you that a started timer will trigger the timeout
unless you did something to prevent it from doing so.
1) Wrong timeout period.
2) Bad connect().
3) No event loop in the timer thread.
4) Event loop not allowed to run.
Bo Thorsen, European Engineering Manager, ICS
Integrated Computer Solutions. Delivering World-Class Applications
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