[libvirt] Event on domain state change

Hi, In the TODO list I find this line: - event on big domain state change (create, crashed, paused, shutdown, destroy) Because this is a feature that is very useful, I first wonder how libvirt reliably get 'events' itself for example from Xen? From what I can read from xen_internal there is a xenHypervisorGetDomInfo function, but this function should be scheduled in order to see event changes. Even if so, can we be 'quick' enough to detect a destroy? Or determine the difference between a shutdown and a destroy? Stefan