lxc, libxl: save domain status after reconnect

The various steps involved in reconnecting to a domain may cause updates
to the virDomainObj struct that need to be reflected in the saved status
file.
Reviewed-by: NLaine Stump <laine@laine.org>
Signed-off-by: NDaniel P. Berrangé <berrange@redhat.com>

src/libxl/libxl_driver.c

@@ -454,6 +454,9 @@ libxlReconnectDomain(virDomainObjPtr vm,
 
     libxlReconnectNotifyNets(vm->def);
 
+    if (virDomainSaveStatus(driver->xmlopt, cfg->stateDir, vm, cfg->caps) < 0)
+        VIR_WARN("Cannot update XML for running Xen guest %s", vm->def->name);
+
     /* now that we know it's reconnected call the hook if present */
     if (virHookPresent(VIR_HOOK_DRIVER_LIBXL) &&
         STRNEQ("Domain-0", vm->def->name)) {

src/lxc/lxc_process.c

@@ -1680,6 +1680,7 @@ virLXCProcessReconnectDomain(virDomainObjPtr vm,
 {
     virLXCDriverPtr driver = opaque;
     virLXCDomainObjPrivatePtr priv;
+    virLXCDriverConfigPtr cfg = virLXCDriverGetConfig(driver);
     int ret = -1;
 
     virObjectLock(vm);
@@ -1722,6 +1723,9 @@ virLXCProcessReconnectDomain(virDomainObjPtr vm,
 
         virLXCProcessReconnectNotifyNets(vm->def);
 
+        if (virDomainSaveStatus(driver->xmlopt, cfg->stateDir, vm, driver->caps) < 0)
+            VIR_WARN("Cannot update XML for running LXC guest %s", vm->def->name);
+
         /* now that we know it's reconnected call the hook if present */
         if (virHookPresent(VIR_HOOK_DRIVER_LXC)) {
             char *xml = virDomainDefFormat(vm->def, driver->caps, 0);
@@ -1742,6 +1746,7 @@ virLXCProcessReconnectDomain(virDomainObjPtr vm,
 
     ret = 0;
  cleanup:
+    virObjectUnref(cfg);
     virObjectUnlock(vm);
     return ret;