qemu: Use virDomainEventState helpers

v2:
    Drop libvirt_private.syms changes

v3:
    Adjust for new virDomainEventStateNew argument

src/qemu/qemu_conf.h

@@ -109,11 +109,7 @@ struct qemud_driver {
 
     virCapsPtr caps;
 
-    /* An array of callbacks */
-    virDomainEventCallbackListPtr domainEventCallbacks;
-    virDomainEventQueuePtr domainEventQueue;
-    int domainEventTimer;
-    int domainEventDispatching;
+    virDomainEventStatePtr domainEventState;
 
     char *securityDriverName;
     virSecurityManagerPtr securityManager;

src/qemu/qemu_domain.c

@@ -65,28 +65,11 @@ static void qemuDomainEventDispatchFunc(virConnectPtr conn,
 void qemuDomainEventFlush(int timer ATTRIBUTE_UNUSED, void *opaque)
 {
     struct qemud_driver *driver = opaque;
-    virDomainEventQueue tempQueue;
 
     qemuDriverLock(driver);
-
-    driver->domainEventDispatching = 1;
-
-    /* Copy the queue, so we're reentrant safe */
-    tempQueue.count = driver->domainEventQueue->count;
-    tempQueue.events = driver->domainEventQueue->events;
-    driver->domainEventQueue->count = 0;
-    driver->domainEventQueue->events = NULL;
-
-    virEventUpdateTimeout(driver->domainEventTimer, -1);
-    virDomainEventQueueDispatch(&tempQueue,
-                                driver->domainEventCallbacks,
+    virDomainEventStateFlush(driver->domainEventState,
                              qemuDomainEventDispatchFunc,
                              driver);
-
-    /* Purge any deleted callbacks */
-    virDomainEventCallbackListPurgeMarked(driver->domainEventCallbacks);
-
-    driver->domainEventDispatching = 0;
     qemuDriverUnlock(driver);
 }
 
@@ -95,11 +78,7 @@ void qemuDomainEventFlush(int timer ATTRIBUTE_UNUSED, void *opaque)
 void qemuDomainEventQueue(struct qemud_driver *driver,
                           virDomainEventPtr event)
 {
-    if (virDomainEventQueuePush(driver->domainEventQueue,
-                                event) < 0)
-        virDomainEventFree(event);
-    if (driver->domainEventQueue->count == 1)
-        virEventUpdateTimeout(driver->domainEventTimer, 0);
+    virDomainEventStateQueue(driver->domainEventState, event);
 }
 
 

src/qemu/qemu_driver.c

@@ -393,14 +393,12 @@ qemudStartup(int privileged) {
     if (virDomainObjListInit(&qemu_driver->domains) < 0)
         goto out_of_memory;
 
-    /* Init callback list */
-    if (VIR_ALLOC(qemu_driver->domainEventCallbacks) < 0)
-        goto out_of_memory;
-    if (!(qemu_driver->domainEventQueue = virDomainEventQueueNew()))
-        goto out_of_memory;
-
-    if ((qemu_driver->domainEventTimer =
-         virEventAddTimeout(-1, qemuDomainEventFlush, qemu_driver, NULL)) < 0)
+    /* Init domain events */
+    qemu_driver->domainEventState = virDomainEventStateNew(qemuDomainEventFlush,
+                                                           qemu_driver,
+                                                           NULL,
+                                                           true);
+    if (!qemu_driver->domainEventState)
         goto error;
 
     /* Allocate bitmap for vnc port reservation */
@@ -764,11 +762,7 @@ qemudShutdown(void) {
     }
 
     /* Free domain callback list */
-    virDomainEventCallbackListFree(qemu_driver->domainEventCallbacks);
-    virDomainEventQueueFree(qemu_driver->domainEventQueue);
-
-    if (qemu_driver->domainEventTimer != -1)
-        virEventRemoveTimeout(qemu_driver->domainEventTimer);
+    virDomainEventStateFree(qemu_driver->domainEventState);
 
     if (qemu_driver->brctl)
         brShutdown(qemu_driver->brctl);
@@ -856,7 +850,8 @@ static int qemudClose(virConnectPtr conn) {
 
     /* Get rid of callbacks registered for this conn */
     qemuDriverLock(driver);
-    virDomainEventCallbackListRemoveConn(conn, driver->domainEventCallbacks);
+    virDomainEventCallbackListRemoveConn(conn,
+                                         driver->domainEventState->callbacks);
     qemuDriverUnlock(driver);
 
     conn->privateData = NULL;
@@ -5651,7 +5646,8 @@ qemuDomainEventRegister(virConnectPtr conn,
     int ret;
 
     qemuDriverLock(driver);
-    ret = virDomainEventCallbackListAdd(conn, driver->domainEventCallbacks,
+    ret = virDomainEventCallbackListAdd(conn,
+                                        driver->domainEventState->callbacks,
                                         callback, opaque, freecb);
     qemuDriverUnlock(driver);
 
@@ -5667,11 +5663,8 @@ qemuDomainEventDeregister(virConnectPtr conn,
     int ret;
 
     qemuDriverLock(driver);
-    if (driver->domainEventDispatching)
-        ret = virDomainEventCallbackListMarkDelete(conn, driver->domainEventCallbacks,
-                                                   callback);
-    else
-        ret = virDomainEventCallbackListRemove(conn, driver->domainEventCallbacks,
+    ret = virDomainEventStateDeregister(conn,
+                                        driver->domainEventState,
                                         callback);
     qemuDriverUnlock(driver);
 
@@ -5692,7 +5685,7 @@ qemuDomainEventRegisterAny(virConnectPtr conn,
 
     qemuDriverLock(driver);
     ret = virDomainEventCallbackListAddID(conn,
-                                          driver->domainEventCallbacks,
+                                          driver->domainEventState->callbacks,
                                           dom, eventID,
                                           callback, opaque, freecb);
     qemuDriverUnlock(driver);
@@ -5709,11 +5702,8 @@ qemuDomainEventDeregisterAny(virConnectPtr conn,
     int ret;
 
     qemuDriverLock(driver);
-    if (driver->domainEventDispatching)
-        ret = virDomainEventCallbackListMarkDeleteID(conn, driver->domainEventCallbacks,
-                                                     callbackID);
-    else
-        ret = virDomainEventCallbackListRemoveID(conn, driver->domainEventCallbacks,
+    ret = virDomainEventStateDeregisterAny(conn,
+                                           driver->domainEventState,
                                            callbackID);
     qemuDriverUnlock(driver);