[pve-devel] qemu-server : drive-mirror : die if stats are empty.

[Dietmar Maurer]

> >>What for? Just to log event messages?
> no ;), of course,that was just an example. Maybe something like a shared
> memory with last qmp events, to be able to use them from proxmox code
> 
> it should great to be able to known if a block job have die and the block job error
> detail, if a bad sector exist by example (for drive-mirror, can be usefull for
> backup too).

IMHO, A block job should store the error somewhere, so that we can query it later.
(like I do it for the backup task).

> Maybe it could be usefull too for other things in the future, like spice qmp events
> (client connect/disconnectd events).
> 
> 
> Another idea, maybe it should be possible to stream events to extjs (websocket
> ?), to instant update running vm status in the gui, without need to pool the
> status. (It's just an idea ;)

Everything is possible ;-) But we now have a simple, stateless interface. I am not really keen
to make that more complex. At least I would wait until we really need it.