Re: [Qemu-devel] Re: Two QMP events issues

[Anthony Liguori]

On 02/08/2010 01:59 PM, Luiz Capitulino wrote:
>   Looks reasonable to me, what do think Daniel?
>
>   Note that if we agree on the 'context design', I'll have to change
> VNC's events names..
>    

Let me give you a few suggestions before diving into it.  context might 
not be the best name.

For event generated by devices, the event should be raised with 
something like qdev_event(&s->dev, QMPEV_WD_EXPIRED, ...).

The context argument should allow a client to determine which device 
raised the event.  So it could be a combination of the device's qdev 
name and it's id.

For event generated by non-qdev mechanisms, we should try our best to 
associate context with that event.  For instance, a DISCONNECT event 
happens to a particular session.  We don't quite have VNC session ids 
yet but if we did, it would make sense to include that in the context info.

So my thinking is that we don't just want context to serve as a 
classification mechanism, but we want it to indicate what 
subsystem/device/session generated the event.

Regards,

Anthony Liguori