Tranport subclasses need to invoke this from their own data-receive handlers. For example, when data is received over a Bluetooth RFCOMM channel in the IOBluetoothOBEXSession, it in turn calls this to dispatch the data. If you do not handle this case, your server session will not work, guaranteed.
- macOS 10.2+
New event received from the transport.
Tranport subclasses must call this for OBEX client sessions to work!