When using QApplication, unix signals are not raised on Embedded Linux.(QT 5.5)

[trinadh17]

When using QCoreApplication in main() as suggested in example.cc, the code works fine.
But if i change QCoreApplication to QApplication (as i am using UI), unix signals are not raised.

The application works fine on Desktop.
The above issue is with Embedded Linux.

I see that QT internally blocked the signals SIGINT, SIGTERM to route it to socket. (using signalfd()).

can i call sigprocmask with SIG_UNBLOCK in my handler to emit the signal.
(If i do it signal is emitted successfully)

Will there be any side-effects on QT Application if i set it directly.

[romme]

Seems relevant: https://bugreports.qt.io/browse/QTBUG-48384

Had the same issue, ended up making a QFileSystemWatcher look for a file "/etc/goodbye" to appear and to call QCoreApplication::quit() when this happened.