[Qt-interest] global thread not running until main app starts

[Arnold Krille]

On Wednesday 14 January 2009 02:42:12 Paul England wrote:
> How exactly would main() look in that case?  What would it return
> instead of app.exec() ?

You would still return the return-value of app.exec(). Only you would create 
the threads somewhere inside the dialog-object after the event-loop runs. For 
example with a private slot in the dialog and a QTimer::singleShot in dialogs 
constructor.

There are some other points in your app that can give your problems:

- You actually don't read the data as soon as its arrived but only when there 
is enough data in QIODevice's buffer to read a line (which is terminated by 
\n).
- Accessing a variable from multiple threads (especially when writing from 
multiple threads) calls for locking. Have a look at QMutex and the like to 
learn about that...

Have fun,

Arnold
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