[libvirt] [libvirt-glib] [PATCH 2/4] GVirDomainSnapshot: Add _revert_to

[mail at baedert.org]

From: Timm Bäder <mail at baedert.org>

Add a way to revert a domain to one of its snapshots.
---
 libvirt-gobject/libvirt-gobject-domain-snapshot.c | 33 +++++++++++++++++++++++
 libvirt-gobject/libvirt-gobject-domain-snapshot.h | 18 +++++++++++++
 libvirt-gobject/libvirt-gobject.sym               |  1 +
 3 files changed, 52 insertions(+)

diff --git a/libvirt-gobject/libvirt-gobject-domain-snapshot.c b/libvirt-gobject/libvirt-gobject-domain-snapshot.c
index 69b6e5a..497288f 100644
--- a/libvirt-gobject/libvirt-gobject-domain-snapshot.c
+++ b/libvirt-gobject/libvirt-gobject-domain-snapshot.c
@@ -264,3 +264,36 @@ gboolean gvir_domain_snapshot_is_current(GVirDomainSnapshot *snapshot,
 
     return status;
 }
+
+
+
+/**
+ * gvir_domain_snapshot_revert_to:
+ * @snapshot: The domain snapshot
+ * @flags: Bitwise OR of GVirDomainSnapshotRevertFlags
+ * @error: (allow-none): Place-holder for error or NULL
+ *
+ * Returns: TRUE if the snapshot's domain has successfully been
+ * reverted to the given snapshot, FALSE otherwise, in which case
+ * @error will be set.
+ */
+gboolean gvir_domain_snapshot_revert_to(GVirDomainSnapshot *snapshot,
+                                        guint flags,
+                                        GError **error) {
+    int status;
+
+    g_return_val_if_fail(GVIR_IS_DOMAIN_SNAPSHOT(snapshot), FALSE);
+    g_return_val_if_fail((error == NULL) || (*error == NULL), FALSE);
+
+
+    status = virDomainRevertToSnapshot(snapshot->priv->handle,
+                                       flags);
+    if (status != 0) {
+        gvir_set_error(error, GVIR_DOMAIN_SNAPSHOT_ERROR,
+                       0, "Failed to revert to snapshot `%s'",
+                       gvir_domain_snapshot_get_name(snapshot));
+        return FALSE;
+    }
+
+    return TRUE;
+}
diff --git a/libvirt-gobject/libvirt-gobject-domain-snapshot.h b/libvirt-gobject/libvirt-gobject-domain-snapshot.h
index bf697b3..2db0a38 100644
--- a/libvirt-gobject/libvirt-gobject-domain-snapshot.h
+++ b/libvirt-gobject/libvirt-gobject-domain-snapshot.h
@@ -71,6 +71,19 @@ typedef enum {
 } GVirDomainSnapshotDeleteFlags;
 
 
+/**
+ * GVirDomainSnapshotRevertFlags:
+ * @GVIR_DOMAIN_SNAPSHOT_REVERT_RUNNING: Run after revert
+ * @GVIR_DOMAIN_SNAPSHOT_REVERT_PAUSED: Pause after revert
+ * @GVIR_DOMAIN_SNAPSHOT_REVERT_FORCE: Allow risky reverts
+ */
+typedef enum {
+  GVIR_DOMAIN_SNAPSHOT_REVERT_RUNNING = 1,
+  GVIR_DOMAIN_SNAPSHOT_REVERT_PAUSED = 2,
+  GVIR_DOMAIN_SNAPSHOT_REVERT_FORCE = 4
+} GVirDomainSnapshotRevertFlags;
+
+
 GType gvir_domain_snapshot_get_type(void);
 GType gvir_domain_snapshot_handle_get_type(void);
 
@@ -88,6 +101,11 @@ gboolean gvir_domain_snapshot_delete (GVirDomainSnapshot *snapshot,
 gboolean gvir_domain_snapshot_is_current(GVirDomainSnapshot *snapshot,
                                          guint flags,
                                          GError **error);
+
+
+gboolean gvir_domain_snapshot_revert_to(GVirDomainSnapshot *snapshot,
+                                        guint flags,
+                                        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 641c4da..0ffbb3f 100644
--- a/libvirt-gobject/libvirt-gobject.sym
+++ b/libvirt-gobject/libvirt-gobject.sym
@@ -243,6 +243,7 @@ LIBVIRT_GOBJECT_0.1.9 {
 	gvir_domain_snapshot_delete;
 	gvir_domain_snapshot_list_flags_get_type;
 	gvir_domain_snapshot_is_current;
+	gvir_domain_snapshot_revert_to;
 } LIBVIRT_GOBJECT_0.1.5;
 
 # .... define new API here using predicted next version number ....
-- 
2.0.3