[libvirt] [PATCH 3/4] Add PMSUSPENDED life cycle event

[Jiri Denemark]

While PMSUSPENDED state was added a long time ago, we didn't have
corresponding life cycle event.
---
 examples/domain-events/events-c/event-test.c       | 10 ++++++++++
 examples/domain-events/events-python/event-test.py |  4 +++-
 include/libvirt/libvirt.h.in                       | 14 ++++++++++++++
 src/qemu/qemu_process.c                            | 12 ++++++++++--
 4 files changed, 37 insertions(+), 3 deletions(-)

diff --git a/examples/domain-events/events-c/event-test.c b/examples/domain-events/events-c/event-test.c
index fc4d575..cde60fb 100644
--- a/examples/domain-events/events-c/event-test.c
+++ b/examples/domain-events/events-c/event-test.c
@@ -90,6 +90,9 @@ const char *eventToString(int event) {
         case VIR_DOMAIN_EVENT_SHUTDOWN:
             ret = "Shutdown";
             break;
+        case VIR_DOMAIN_EVENT_PMSUSPENDED:
+            ret = "PMSuspended";
+            break;
     }
     return ret;
 }
@@ -193,6 +196,13 @@ static const char *eventDetailToString(int event, int detail) {
                 break;
             }
             break;
+        case VIR_DOMAIN_EVENT_PMSUSPENDED:
+            switch ((virDomainEventPMSuspendedDetailType) detail) {
+            case VIR_DOMAIN_EVENT_PMSUSPENDED_MEMORY:
+                ret = "Memory";
+                break;
+            }
+            break;
     }
     return ret;
 }
diff --git a/examples/domain-events/events-python/event-test.py b/examples/domain-events/events-python/event-test.py
index e3b6ed2..fd71acd 100644
--- a/examples/domain-events/events-python/event-test.py
+++ b/examples/domain-events/events-python/event-test.py
@@ -436,7 +436,8 @@ def eventToString(event):
                      "Suspended",
                      "Resumed",
                      "Stopped",
-                     "Shutdown" );
+                     "Shutdown",
+                     "PMSuspended" );
     return eventStrings[event];
 
 def detailToString(event, detail):
@@ -448,6 +449,7 @@ def detailToString(event, detail):
         ( "Unpaused", "Migrated", "Snapshot" ),
         ( "Shutdown", "Destroyed", "Crashed", "Migrated", "Saved", "Failed", "Snapshot"),
         ( "Finished" )
+        ( "Memory", )
         )
     return eventStrings[event][detail]
 
diff --git a/include/libvirt/libvirt.h.in b/include/libvirt/libvirt.h.in
index 44c1649..19b13a7 100644
--- a/include/libvirt/libvirt.h.in
+++ b/include/libvirt/libvirt.h.in
@@ -2812,6 +2812,7 @@ typedef enum {
     VIR_DOMAIN_EVENT_RESUMED = 4,
     VIR_DOMAIN_EVENT_STOPPED = 5,
     VIR_DOMAIN_EVENT_SHUTDOWN = 6,
+    VIR_DOMAIN_EVENT_PMSUSPENDED = 7,
 
 #ifdef VIR_ENUM_SENTINELS
     VIR_DOMAIN_EVENT_LAST
@@ -2929,6 +2930,19 @@ typedef enum {
 } virDomainEventShutdownDetailType;
 
 /**
+ * virDomainEventPMSuspendedDetailType:
+ *
+ * Details about the 'pmsuspended' lifecycle event
+ */
+typedef enum {
+    VIR_DOMAIN_EVENT_PMSUSPENDED_MEMORY = 0, /* Guest was PM suspended to memory */
+
+#ifdef VIR_ENUM_SENTINELS
+    VIR_DOMAIN_EVENT_PMSUSPENDED_LAST
+#endif
+} virDomainEventPMSuspendedDetailType;
+
+/**
  * virConnectDomainEventCallback:
  * @conn: virConnect connection
  * @dom: The domain on which the event occurred
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 93653c6..77d679a 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -1120,6 +1120,7 @@ qemuProcessHandlePMSuspend(qemuMonitorPtr mon ATTRIBUTE_UNUSED,
 {
     struct qemud_driver *driver = qemu_driver;
     virDomainEventPtr event = NULL;
+    virDomainEventPtr lifecycleEvent = NULL;
 
     virDomainObjLock(vm);
     event = virDomainEventPMSuspendNewFromObj(vm);
@@ -1131,6 +1132,10 @@ qemuProcessHandlePMSuspend(qemuMonitorPtr mon ATTRIBUTE_UNUSED,
 
         virDomainObjSetState(vm, VIR_DOMAIN_PMSUSPENDED,
                              VIR_DOMAIN_PMSUSPENDED_UNKNOWN);
+        lifecycleEvent =
+            virDomainEventNewFromObj(vm,
+                                     VIR_DOMAIN_EVENT_PMSUSPENDED,
+                                     VIR_DOMAIN_EVENT_PMSUSPENDED_MEMORY);
 
         if (virDomainSaveStatus(driver->caps, driver->stateDir, vm) < 0) {
             VIR_WARN("Unable to save status on vm %s after suspend event",
@@ -1143,9 +1148,12 @@ qemuProcessHandlePMSuspend(qemuMonitorPtr mon ATTRIBUTE_UNUSED,
 
     virDomainObjUnlock(vm);
 
-    if (event) {
+    if (event || lifecycleEvent) {
         qemuDriverLock(driver);
-        qemuDomainEventQueue(driver, event);
+        if (event)
+            qemuDomainEventQueue(driver, event);
+        if (lifecycleEvent)
+            qemuDomainEventQueue(driver, lifecycleEvent);
         qemuDriverUnlock(driver);
     }
 
-- 
1.7.12