vbox: Rewrite vboxDomainIsPersistent

src/vbox/vbox_common.c

@@ -2324,3 +2324,22 @@ int vboxDomainIsActive(virDomainPtr dom)
 
     return ret;
 }
+
+int vboxDomainIsPersistent(virDomainPtr dom)
+{
+    /* All domains are persistent.  However, we do want to check for
+     * existence. */
+    VBOX_OBJECT_CHECK(dom->conn, int, -1);
+    vboxIIDUnion iid;
+    IMachine *machine = NULL;
+
+    if (openSessionForMachine(data, dom->uuid, &iid, &machine, false) < 0)
+        goto cleanup;
+
+    ret = 1;
+
+ cleanup:
+    VBOX_RELEASE(machine);
+    vboxIIDUnalloc(&iid);
+    return ret;
+}

src/vbox/vbox_tmpl.c

@@ -933,32 +933,6 @@ vboxSocketParseAddrUtf16(vboxGlobalData *data, const PRUnichar *utf16,
     return result;
 }
 
-static int vboxDomainIsPersistent(virDomainPtr dom ATTRIBUTE_UNUSED)
-{
-    /* All domains are persistent.  However, we do want to check for
-     * existence. */
-    VBOX_OBJECT_CHECK(dom->conn, int, -1);
-    vboxIID iid = VBOX_IID_INITIALIZER;
-    IMachine *machine = NULL;
-    nsresult rc;
-
-    vboxIIDFromUUID(&iid, dom->uuid);
-    rc = VBOX_OBJECT_GET_MACHINE(iid.value, &machine);
-    if (NS_FAILED(rc)) {
-        virReportError(VIR_ERR_NO_DOMAIN, "%s",
-                       _("no domain with matching UUID"));
-        goto cleanup;
-    }
-
-    ret = 1;
-
- cleanup:
-    VBOX_RELEASE(machine);
-    vboxIIDUnalloc(&iid);
-    return ret;
-}
-
-
 static int vboxDomainIsUpdated(virDomainPtr dom ATTRIBUTE_UNUSED)
 {
     /* VBox domains never have a persistent state that differs from

src/vbox/vbox_uniformed_api.h

@@ -412,6 +412,7 @@ int vboxDomainCreate(virDomainPtr dom);
 virDomainPtr vboxDomainCreateXML(virConnectPtr conn, const char *xml,
                                  unsigned int flags);
 int vboxDomainIsActive(virDomainPtr dom);
+int vboxDomainIsPersistent(virDomainPtr dom);
 
 /* Version specified functions for installing uniformed API */
 void vbox22InstallUniformedAPI(vboxUniformedAPI *pVBoxAPI);