Comments (6)
Hello,
you've to call virt.startEventLoop() first to register libvirt event manager with the nodejs event loop.
Anthony.
from node-libvirt.
Thanks. Will try.
from node-libvirt.
Ok, tried with calling virt.startEventLoop() . It actually works somehow, as it now reacts to events. But not the one that is attached. Just for quick try I attached reboot event and rebooted the vm form virt-manager. The output from console of my app shows GENERIC CALLBACK CALLEDGENERIC CALLBACK CALLED. But not the callback I attached. More, the callback gets executed immediately when registration performs. I've checked in the source and arguments for event registration should be [object, function]. So doing properly. No idea what am I doing wrong now.
from node-libvirt.
Dug a little further and see that generic is attached to reboot. More, generic emits no event, just prints the above.
The above changes actually nothing as I still have no clue how to register event without calling callback immediately.
from node-libvirt.
First, use registerEventAsync (the promised version of the function) instead of registerEvent. Then, the libvirt domain acts as a EventEmitter, so you can use something looking like :
.then((domain) => {
vapp.domain = domain;
return domain.registerEventAsync({ evtype: virt.VIR_DOMAIN_EVENT_ID_LIFECYCLE })
})
.then((callbackId) => {
vapp.domain.on('lifecycleEvent', (data) => {
console.log("lifecycleEvent fired : "+JSON.stringify(data));
});
return vapp.domain.getInfoAsync();
})
.then((info) => {
....
}
You can use callbackId to unregister the event handling :
domain.unregisterEventAsync(callbackId).then(.....);
Anthony.
from node-libvirt.
I just thought that there is a way to register an event and attach function in one step (like addEventListener). Apparently must do it in two steps.
Thanks for the answer.
from node-libvirt.
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from node-libvirt.