vbox: Rewrite vboxDomainSnapshotGetParent

src/vbox/vbox_common.c

@@ -6246,3 +6246,64 @@ int vboxDomainHasCurrentSnapshot(virDomainPtr dom,
     vboxIIDUnalloc(&iid);
     return ret;
 }
+
+virDomainSnapshotPtr
+vboxDomainSnapshotGetParent(virDomainSnapshotPtr snapshot,
+                            unsigned int flags)
+{
+    virDomainPtr dom = snapshot->domain;
+    VBOX_OBJECT_CHECK(dom->conn, virDomainSnapshotPtr, NULL);
+    vboxIIDUnion iid;
+    IMachine *machine = NULL;
+    ISnapshot *snap = NULL;
+    ISnapshot *parent = NULL;
+    PRUnichar *nameUtf16 = NULL;
+    char *name = NULL;
+    nsresult rc;
+
+    virCheckFlags(0, NULL);
+
+    if (openSessionForMachine(data, dom->uuid, &iid, &machine, false) < 0)
+        goto cleanup;
+
+    if (!(snap = vboxDomainSnapshotGet(data, dom, machine, snapshot->name)))
+        goto cleanup;
+
+    rc = gVBoxAPI.UISnapshot.GetParent(snap, &parent);
+    if (NS_FAILED(rc)) {
+        virReportError(VIR_ERR_INTERNAL_ERROR,
+                       _("could not get parent of snapshot %s"),
+                       snapshot->name);
+        goto cleanup;
+    }
+    if (!parent) {
+        virReportError(VIR_ERR_NO_DOMAIN_SNAPSHOT,
+                       _("snapshot '%s' does not have a parent"),
+                       snapshot->name);
+        goto cleanup;
+    }
+
+    rc = gVBoxAPI.UISnapshot.GetName(parent, &nameUtf16);
+    if (NS_FAILED(rc) || !nameUtf16) {
+        virReportError(VIR_ERR_INTERNAL_ERROR,
+                       _("could not get name of parent of snapshot %s"),
+                       snapshot->name);
+        goto cleanup;
+    }
+    VBOX_UTF16_TO_UTF8(nameUtf16, &name);
+    if (!name) {
+        virReportOOMError();
+        goto cleanup;
+    }
+
+    ret = virGetDomainSnapshot(dom, name);
+
+ cleanup:
+    VBOX_UTF8_FREE(name);
+    VBOX_UTF16_FREE(nameUtf16);
+    VBOX_RELEASE(snap);
+    VBOX_RELEASE(parent);
+    VBOX_RELEASE(machine);
+    vboxIIDUnalloc(&iid);
+    return ret;
+}

src/vbox/vbox_tmpl.c

@@ -1523,72 +1523,6 @@ vboxDomainSnapshotGet(vboxGlobalData *data,
     return snapshot;
 }
 
-static virDomainSnapshotPtr
-vboxDomainSnapshotGetParent(virDomainSnapshotPtr snapshot,
-                            unsigned int flags)
-{
-    virDomainPtr dom = snapshot->domain;
-    VBOX_OBJECT_CHECK(dom->conn, virDomainSnapshotPtr, NULL);
-    vboxIID iid = VBOX_IID_INITIALIZER;
-    IMachine *machine = NULL;
-    ISnapshot *snap = NULL;
-    ISnapshot *parent = NULL;
-    PRUnichar *nameUtf16 = NULL;
-    char *name = NULL;
-    nsresult rc;
-
-    virCheckFlags(0, NULL);
-
-    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;
-    }
-
-    if (!(snap = vboxDomainSnapshotGet(data, dom, machine, snapshot->name)))
-        goto cleanup;
-
-    rc = snap->vtbl->GetParent(snap, &parent);
-    if (NS_FAILED(rc)) {
-        virReportError(VIR_ERR_INTERNAL_ERROR,
-                       _("could not get parent of snapshot %s"),
-                       snapshot->name);
-        goto cleanup;
-    }
-    if (!parent) {
-        virReportError(VIR_ERR_NO_DOMAIN_SNAPSHOT,
-                       _("snapshot '%s' does not have a parent"),
-                       snapshot->name);
-        goto cleanup;
-    }
-
-    rc = parent->vtbl->GetName(parent, &nameUtf16);
-    if (NS_FAILED(rc) || !nameUtf16) {
-        virReportError(VIR_ERR_INTERNAL_ERROR,
-                       _("could not get name of parent of snapshot %s"),
-                       snapshot->name);
-        goto cleanup;
-    }
-    VBOX_UTF16_TO_UTF8(nameUtf16, &name);
-    if (!name) {
-        virReportOOMError();
-        goto cleanup;
-    }
-
-    ret = virGetDomainSnapshot(dom, name);
-
- cleanup:
-    VBOX_UTF8_FREE(name);
-    VBOX_UTF16_FREE(nameUtf16);
-    VBOX_RELEASE(snap);
-    VBOX_RELEASE(parent);
-    VBOX_RELEASE(machine);
-    vboxIIDUnalloc(&iid);
-    return ret;
-}
-
 static virDomainSnapshotPtr
 vboxDomainSnapshotCurrent(virDomainPtr dom,
                           unsigned int flags)

src/vbox/vbox_uniformed_api.h

@@ -584,6 +584,9 @@ virDomainSnapshotPtr
 vboxDomainSnapshotLookupByName(virDomainPtr dom, const char *name,
                                unsigned int flags);
 int vboxDomainHasCurrentSnapshot(virDomainPtr dom, unsigned int flags);
+virDomainSnapshotPtr
+vboxDomainSnapshotGetParent(virDomainSnapshotPtr snapshot,
+                            unsigned int flags);
 
 /* Version specified functions for installing uniformed API */
 void vbox22InstallUniformedAPI(vboxUniformedAPI *pVBoxAPI);