log-object: Add possibility to reset logger id

Logger id (the one generated from build_id interface method and owner_id
property) is generated and cached the first time it is required, further
uses just return the cached value.

Add a cache reset method so if the interface implementer knows that its
logger id could have changed it could force its re-generation.

Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>

src/mm-log-object.c

@@ -81,6 +81,17 @@ mm_log_object_set_owner_id (MMLogObject *self,
     priv = get_private (self);
     g_free (priv->owner_id);
     priv->owner_id = g_strdup (owner_id);
+
+    mm_log_object_reset_id (self);
+}
+
+void
+mm_log_object_reset_id (MMLogObject *self)
+{
+    Private *priv;
+
+    priv = get_private (self);
+    g_clear_pointer (&priv->id, g_free);
 }
 
 static void

src/mm-log-object.h

@@ -34,5 +34,6 @@ struct _MMLogObjectInterface
 const gchar *mm_log_object_get_id       (MMLogObject *self);
 void         mm_log_object_set_owner_id (MMLogObject *self,
                                          const gchar *owner_id);
+void         mm_log_object_reset_id     (MMLogObject *self);
 
 #endif /* MM_LOG_OBJECT_H */