wayland screen locker and security in general

[Bill Spitzak]

Michal Suchanek wrote:

>> It's not difficult for a D-Bus service implementation to monitor for
>> disconnection events by its clients. If mplayer crashes, wayland could
>> easily clear out the inhibition that mplayer had installed.
> 
> Which means that it works when mplayer crashes but not when it locks up.

Doesn't Wayland have some kind of "awake?" message. Both clients and the 
compositor should be able to send these and expect a response back in 
some reasonable amount of time, in order to detect if the other end has 
gone into a non-listening loop.

Anyway this is a very good reason to not use a different API to 
communicate any information that the compositor is interested in. 
Everything should go over the same Wayland connection.