On 12/08/2015 12:53 PM, Dmitry Andreev wrote:
Hi,
I'm looking for a way to catch an event about reverting to snapshot.
As I can see in the code there is no lifecycle event if VM state wasn't changed.
The comment in the code of qemuDomainRevertToSnapshot:
/* We have the following transitions, which create the following events:
* 1. inactive -> inactive: none
* 2. inactive -> running: EVENT_STARTED
* 3. inactive -> paused: EVENT_STARTED, EVENT_PAUSED
* 4. running -> inactive: EVENT_STOPPED
* 5. running -> running: none
* 6. running -> paused: EVENT_PAUSED
* 7. paused -> inactive: EVENT_STOPPED
* 8. paused -> running: EVENT_RESUMED
* 9. paused -> paused: none
* Also, several transitions occur even if we fail partway through,
* and use of FORCE can cause multiple transitions.
*/
Also there is no VIR_DOMAIN_EVENT_DEFINED event after reverting to snapshot,
even when domain configuration is changed. Isn't that strange? Checked on
stopped VM.
Is there any way to catch event about changes in configuration after reverting
to snapshot.
There's a similar fedora bug about this:
https://bugzilla.redhat.com/show_bug.cgi?id=1081148
I think libvirt needs to be extended to handle both the cases you mention
- Cole