Quit application from within thread

[hellagot]

hi there, i have a application that is quite similar to the threaded fortune server.

So what i have, is a QT application, with QMainWindow in it, that has a QTcpServer running, that starts threads on incomming connections.

What i want to do, is, quit the whole application from within one of the threads started by the server.

I tried different things:

• just call application->quit();

Says that a thread was killed while running, unclean exit

• call QApplication::postEvent(application, new QCloseEvent()) from the end of the threads run() method

and:

• connect(thread, SIGNAL ( finished ) , application, SLOT ( quit ) );

Exits unclean

Any ideas how i could exit the application cleanly from within the thread?

[miroslav]

You need to add synchronization that waits for all threads to finished before main() exits. If you are sure (to some extend :-) ) that the threads will exit, you can call wait() on the threads that are still running before exiting main.
The event loop (QApplication::exec()) will exit after processing all the events, and not wait for other threads to exit.

[hellagot]

Thanx, actually i removed the threads and it turned out that it was some not closed object that was causing the unclean exit ;) but i will return to threads and its good to know

[Anticross]

You can call terminate() to all your threads before you exit your program, by reimplementing close event on your main window and insert there a call to terminate all threads.