[libvirt] [PATCH v4 5/5] on_missing: Emit event on disk source dropping

[Jiri Denemark]

On Thu, Oct 20, 2011 at 16:32:55 +0100, Daniel P. Berrange wrote:
> On Thu, Oct 20, 2011 at 04:52:52PM +0200, Michal Privoznik wrote:
...
> > +/**
> > + * virConnectDomainEventDiskEjectCallback:
> > + * @conn: connection object
> > + * @dom: domain on which the event occurred
> > + * @target: target which changed status
> > + * @reason: reason why this callback was called; any of
> > + *          virConnectDomainEventDiskEjectReason
> > + * @opaque: application specified data
> > + *
> > + * The callback signature to use when registering for an event of type
> > + * VIR_DOMAIN_EVENT_ID_IO_ERROR with virConnectDomainEventRegisterAny()
> > + */
> > +typedef void (*virConnectDomainEventDiskEjectCallback)(virConnectPtr conn,
> > +                                                       virDomainPtr dom,
> > +                                                       const char *srcPath,
> > +                                                       const char *devAlias,
> > +                                                       int reason,
> > +                                                       void *opaque);
> 
> It suddenly occurs to me that this event will also be relevant if we
> insert new media. So instead of 'srcPath', we should have 'oldSrcPath'
> and 'newSrcPath', either one of which may be NULL depending on the
> scenarios involved.

In that case I think we should call the event DiskChange instead of DiskEject.

Jirka