On 03/17/2011 07:21 AM, Kevin Wolf wrote:
Another detail is that, event extension is more important than command
extension, because it's probably going to happen. I think it would be very
bad to add new events just because we wanted to add a new field.
The way this is typically handled is that signals tend to pass
structures instead of lots of fields. For instance, most of the GDK
events just pass a structure for the event (like GdkButtonEvent).
Can we do that with existing events or would we break the external
interface because we'd have to nest everything one level deeper?
We have to introduce new versions of existing events anyway so we can
make sure to nest the structures appropriately. I think BLOCK_IO_ERROR
is the only one that isn't doing this today FWIW.
Regards,
Anthony Liguori
Kevin
