That's right, any time QNAM is used it uses the Qt Bearer backend (unless Qt is configure without bearer). In the case of the network-manager backend, it calls the blocking dbus calls to get list of services, and then for every service to get that services properties. Even for local file:// access, even though the bearer is not even used for local file access, thanks to QNAM private c'tor.
That's right, any time QNAM is used it uses the Qt Bearer backend (unless Qt is configure without bearer). In the case of the network-manager backend, it calls the blocking dbus calls to get list of services, and then for every service to get that services properties. Even for local file:// access, even though the bearer is not even used for local file access, thanks to QNAM private c'tor.