Summary:
QSslSocket is already a QIODevice so just use that.
Should fix the issue of transfering *big* files.
Unfortunately this seems to trigger a bug in KIO and CPU usage goes through the roof, so haven't really been able to test it does actually fix things.
Please don't merge/approve yet
Reviewers: apol, albertvaka, kdeconnect
Subscribers: #kde_connect
Differential Revision: https://phabricator.kde.org/D6039
Introduces a big fat buffer :(
Actually test the trasfers :)
Takes QSslSocket causistic into account, for some reason QNAM refuses to
mark as finished when the QSslSocket (through QIODevice) closes.
It would be good to look into dropping the QBuffer, doing so with the test
in place will help.
There are still some code paths where it doesn't get destroyed though,
like when the device gets unreachable (and the download socket doesn't
close for some reason).