Re: [libvirt] [PATCHv2 6/6] event: pass reason for PM events

Commit 57ddcc23 (v0.9.11) introduced the pmwakeup event, with an optional 'reason' field reserved for possible future expansion. But it failed to wire the field through RPC, so even if we do add a reason in the future, we will be unable to get it back to the user. Worse, commit 7ba5defb (v1.0.0) repeated the same mistake with the pmsuspend_disk event.

As long as we are adding new RPC calls, we might as well fix the events to actually match the signature so that we don't have to add yet another RPC in the future if we do decide to start using the reason field. * src/remote/remote_protocol.x (remote_domain_event_callback_pmwakeup_msg) (remote_domain_event_callback_pmsuspend_msg) (remote_domain_event_callback_pmsuspend_disk_msg): Add reason field. * daemon/remote.c (remoteRelayDomainEventPMWakeup) (remoteRelayDomainEventPMSuspend) (remoteRelayDomainEventPMSuspendDisk): Pass reason to client. * src/conf/domain_event.h (virDomainEventPMWakeupNewFromDom) (virDomainEventPMSuspendNewFromDom) (virDomainEventPMSuspendDiskNewFromDom): Require additional parameter. * src/conf/domain_event.c (virDomainEventPMClass): New class. (virDomainEventPMDispose): New function. (virDomainEventPMWakeupNew*, virDomainEventPMSuspendNew*) (virDomainEventPMSuspendDiskNew*) (virDomainEventDispatchDefaultFunc): Use new class. * src/remote/remote_driver.c (remoteDomainBuildEvent*PM*): Pass reason through. * src/remote_protocol-structs: Regenerate.