Hi Joe,
see comments inline
On 24.03.2011 20:23, Nikolay Igotti wrote:
Hi Joseph,
I think you just hit an issue (aka bug) in VirtualBox - certain events
not triggered when they should or could be triggered.
The only solution is to implement those.
Klaus, what do you think about when shall events firing happen, do you
have bit of time to look on that?
Thanks,
Nikolay
24.03.2011 17:45, Joseph Smith пишет:
Hi,
Was wondering if anyone has had an opportunity to give this some
thought and maybe have some suggestions or ideas to offer.
Thanks,
Joe
------------------------------------------------------------------------
*From:* Joseph Smith <[email protected]>
*To:* [email protected]
*Sent:* Sat, March 19, 2011 11:11:12 PM
*Subject:* [vbox-dev] IEvent not triggering on some events ... ?
VBox Ver: 4.0.0 and 4.0.4
Hosts: Win XP, openSuSE 11.2, Mac OS 10.6
Guests: various
I am using the VirtualBox webservice PHP APIs (via
vboxServiceWrappers.php). With the release of 4.0.x, I shifted my
solution approach from a heavy polling approach to the light-weight
IEvent approach.
It appears there are some key events that are not being triggered. For
example, I do not receive the IMediumChanged and IMediumRegistered
events among some lesser important events that I don't quite need just
yet (e.g: IRuntimeErrorEvent).
IMediumRegistered (an IVirtualBox event) indeed is never triggered. Will
look into getting this fixed for 4.0.6. No promises.
IMediumChanged (an IConsole event) is triggered, but only when a VM is
running. You need to register with the Console object of the running VM,
not with the local Console object which is associated with every session...
I can see no problem with IRuntimeErrorEvent (also an IConsole event)
either, it should be fired for every runtime error encountered by a
running VM. Sure you're using the right Console object?
I do consistently receive the OnMachineRegistered,
OnMachineDataChanged, OnMachineStateChanged, OnGuestPropertyChanged,
OnEventSourceChanged, OnSessionStateChagned events and a few others.
When I register the listner (EventSource::RegisterListener), I listen
for 'Any' events as described in the documentation and after handling
each event, I call EventSource::EventProcessed.
Does ver 4.0.x fire IMedium events ? Any suggestions of what I might
be able to look for to determine what I might be doing incorrectly?
Half of them yes, half of them no.
Oh ... my application runs for weeks at a time without being restarted
and polls about every 3 seconds for events. There are never any events
that are not processed. Of the events I listed above, I continue to
receive those events when actions trigger them ... just not getting
many of the others listed in the enumerated VBoxEvent Type.
Again sounds like a description of the symptoms of not registering with
the Console events correctly. They do not show up for the VirtualBox
event source.
Klaus
Any suggestions are welcome.
Thanks,
Joe
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