[please provide subject lines; your email was nearly eaten by spam filters] On 04/09/2013 03:51 PM, arvind viswanathan wrote: Yes, libvirt is able to provide asynchronous event notifications. Check out http://libvirt.org/html/libvirt-libvirt.html#virConnectDomainEventRegiste... for the API for registering your callback function to be called when the right event happens. Also, take a look at the examples/domain-events/ directory inside the libvirt tarball, which includes both C and python examples for acting on asynchronous events. -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org