[packagekit] Handling back end crashes in the UI

[Sergio Schvezov]

Hi, I'm noticing that packagekitd sometimes crashes mid transaction
(zypp back end, although should be only relevant to the crash and not
my question ;-))

So when it crashes mid transaction, what would be the best method to
detect this in the UI? is there a DBUS signal I could be reading that
would help me with this?

Thanks