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event: Add guest agent lifecycle event

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As qemu is now able to notify us about change of the channel state used
for communication with the guest agent we now can more precisely track
the state of the guest agent.

To allow notifying management apps this patch implements a new event
that will be triggered on changes of the guest agent state.
This commit is contained in:
Peter Krempa
2014-11-19 10:32:20 +01:00
parent 1fd8360751
commit 1a4609101b
9 changed files with 258 additions and 1 deletions
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41
include/libvirt/libvirt-domain.h
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@@ -3332,6 +3332,46 @@ typedef void (*virConnectDomainEventTunableCallback)(virConnectPtr conn,
void *opaque);
typedef enum {
VIR_CONNECT_DOMAIN_EVENT_AGENT_LIFECYCLE_STATE_CONNECTED = 1, /* agent connected */
VIR_CONNECT_DOMAIN_EVENT_AGENT_LIFECYCLE_STATE_DISCONNECTED = 2, /* agent disconnected */
# ifdef VIR_ENUM_SENTINELS
VIR_CONNECT_DOMAIN_EVENT_AGENT_LIFECYCLE_STATE_LAST
# endif
} virConnectDomainEventAgentLifecycleState;
typedef enum {
VIR_CONNECT_DOMAIN_EVENT_AGENT_LIFECYCLE_REASON_UNKNOWN = 0, /* unknown state change reason */
VIR_CONNECT_DOMAIN_EVENT_AGENT_LIFECYCLE_REASON_DOMAIN_STARTED = 1, /* state changed due to domain start */
VIR_CONNECT_DOMAIN_EVENT_AGENT_LIFECYCLE_REASON_CHANNEL = 2, /* channel state changed */
# ifdef VIR_ENUM_SENTINELS
VIR_CONNECT_DOMAIN_EVENT_AGENT_LIFECYCLE_REASON_LAST
# endif
} virConnectDomainEventAgentLifecycleReason;
/**
* virConnectDomainEventAgentLifecycleCallback:
* @conn: connection object
* @dom: domain on which the event occurred
* @state: new state of the guest agent, one of virConnectDomainEventAgentLifecycleState
* @reason: reason for state change; one of virConnectDomainEventAgentLifecycleReason
* @opaque: application specified data
*
* This callback occurs when libvirt detects a change in the state of a guest
* agent.
*
* The callback signature to use when registering for an event of type
* VIR_DOMAIN_EVENT_ID_AGENT_LIFECYCLE with virConnectDomainEventRegisterAny()
*/
typedef void (*virConnectDomainEventAgentLifecycleCallback)(virConnectPtr conn,
virDomainPtr dom,
int state,
int reason,
void *opaque);
/**
* VIR_DOMAIN_EVENT_CALLBACK:
*
@@ -3367,6 +3407,7 @@ typedef enum {
VIR_DOMAIN_EVENT_ID_DEVICE_REMOVED = 15, /* virConnectDomainEventDeviceRemovedCallback */
VIR_DOMAIN_EVENT_ID_BLOCK_JOB_2 = 16, /* virConnectDomainEventBlockJobCallback */
VIR_DOMAIN_EVENT_ID_TUNABLE = 17, /* virConnectDomainEventTunableCallback */
VIR_DOMAIN_EVENT_ID_AGENT_LIFECYCLE = 18,/* virConnectDomainEventAgentLifecycleCallback */
# ifdef VIR_ENUM_SENTINELS
VIR_DOMAIN_EVENT_ID_LAST