If the supplicant interface object never successfully initialized, remove
the pending action to prevent warnings about "pending action already added"
when supplicant_interface_acquire() adds the pending action again.
Just listen to manager signals all the time, but only respond to
them when necessary. Clean up companion detection to be a bit
clearer, and use nm_device_queue_state() so that we don't need
an idle handler when detecting the companion from a state change
handler.
There used to be many more members of the Supplicant struct, but now
that there are only three, collapse the struct into the NMDeviceWifiPrivate
struct, renaming them slightly at the same time to shorten the names.
Second, consolidate timeout cleanup since the two remaining timeouts
don't need their own cleanup functions.
Third, start_supplicant_connection_timeout() doesn't need its own
function since g_timeout_add() never returns 0, so we don't need to
check for it.
The only reason for the small struct was the idle handler, and the
only reason for the idle handler was to ensure that state was changed
from an idle handler. We've got nm_device_queue_state() to do that
for us now, so use it.
Make Wi-Fi support a plugin using the new device factory interface.
Provides a 7% size reduction in the core NM binary.
Before After
NM: 1154104 1071992 (-7%)
Wi-Fi: 0 110464
(all results from stripped files)
