[libvirt] [libvirt-glib] [PATCH v2 1/4] GVirDomainSnapshot: Add _get_is_current

[Timm Bäder]

Add a way to determine if the given GVirDomainSnapshot is the current
snapshot of its GVirDomain.
---
 libvirt-gobject/libvirt-gobject-domain-snapshot.c | 33 +++++++++++++++++++++++
 libvirt-gobject/libvirt-gobject-domain-snapshot.h |  4 +++
 libvirt-gobject/libvirt-gobject.sym               |  1 +
 3 files changed, 38 insertions(+)

diff --git a/libvirt-gobject/libvirt-gobject-domain-snapshot.c b/libvirt-gobject/libvirt-gobject-domain-snapshot.c
index 7bb89f1..c53e877 100644
--- a/libvirt-gobject/libvirt-gobject-domain-snapshot.c
+++ b/libvirt-gobject/libvirt-gobject-domain-snapshot.c
@@ -235,3 +235,36 @@ gboolean gvir_domain_snapshot_delete (GVirDomainSnapshot *snapshot,
     }
     return TRUE;
 }
+
+
+/**
+ * gvir_domain_snapshot_get_is_current:
+ * @snapshot: The domain snapshot
+ * @flags: Currently unused, pass 0
+ * @is_current: (out): %TRUE if the given snapshot is the current snapshot
+ * of its domain, %FALSE otherwise.
+ * @error: (allow-none): Place-holder for error or %NULL
+ *
+ * Returns: %TRUE on success, %FALSE otherwise.
+ */
+gboolean gvir_domain_snapshot_get_is_current(GVirDomainSnapshot *snapshot,
+                                             guint flags,
+                                             gboolean *is_current,
+                                             GError **error) {
+    gint status;
+
+    g_return_val_if_fail(GVIR_IS_DOMAIN_SNAPSHOT(snapshot), FALSE);
+    g_return_val_if_fail(error == NULL || *error == NULL, FALSE);
+
+    status = virDomainSnapshotIsCurrent(snapshot->priv->handle, flags);
+    if (status == -1) {
+        gvir_set_error(error, GVIR_DOMAIN_SNAPSHOT_ERROR, 0,
+                       "Could not determine if `%s' is the current snapshot",
+                       gvir_domain_snapshot_get_name(snapshot));
+        return FALSE;
+    }
+
+    *is_current = status;
+
+    return TRUE;
+}
diff --git a/libvirt-gobject/libvirt-gobject-domain-snapshot.h b/libvirt-gobject/libvirt-gobject-domain-snapshot.h
index b3ebe7f..0a0bb96 100644
--- a/libvirt-gobject/libvirt-gobject-domain-snapshot.h
+++ b/libvirt-gobject/libvirt-gobject-domain-snapshot.h
@@ -85,6 +85,10 @@ gboolean gvir_domain_snapshot_delete (GVirDomainSnapshot *snapshot,
                                       guint flags,
                                       GError **error);
 
+gboolean gvir_domain_snapshot_get_is_current(GVirDomainSnapshot *snapshot,
+                                             guint flags,
+                                             gboolean *is_current,
+                                             GError **error);
 G_END_DECLS
 
 #endif /* __LIBVIRT_GOBJECT_DOMAIN_SNAPSHOT_H__ */
diff --git a/libvirt-gobject/libvirt-gobject.sym b/libvirt-gobject/libvirt-gobject.sym
index b0c55b5..c740f88 100644
--- a/libvirt-gobject/libvirt-gobject.sym
+++ b/libvirt-gobject/libvirt-gobject.sym
@@ -242,6 +242,7 @@ LIBVIRT_GOBJECT_0.1.9 {
 	gvir_domain_get_snapshots;
 	gvir_domain_snapshot_delete;
 	gvir_domain_snapshot_delete_flags_get_type;
+	gvir_domain_snapshot_get_is_current;
 	gvir_domain_snapshot_list_flags_get_type;
 	gvir_storage_pool_state_get_type;
 	gvir_storage_vol_resize_flags_get_type;
-- 
2.0.4