Amends 0786c17bbc, which added a number
of attempts to gracefully shut down the QFileInfoGatherer thread while
shutting down a QFileSystemModel. This introduced a 1-second wait upon
destruction of the model when the QFileInfoGatherer thread is waiting
for an unset wait condition.
Instead of QThread::requestInteruption() to make the thread exit, use
QFileInfoGatherer::requestAbort(), which calls requestInteruption() but
also sets the wait condition afterwards to make sure that the thread
wakes up and checks the abort condition.
Pick-to: 6.6 6.7
Fixes: QTBUG-124164
Change-Id: I560f2131f226e0bb59f72e558cbab55b89cfb144
Reviewed-by: David Faure <david.faure@kdab.com>
a79ca35abe