C++ (Cpp) tracker_sparql_connection_update_blank_finishの例

コード例 #1

ファイル: photos-create-collection-job.c プロジェクト: iamneha/gnome-photos

static void
photos_create_collection_job_query_executed (GObject *source_object, GAsyncResult *res, gpointer user_data)
{
  PhotosCreateCollectionJob *self = PHOTOS_CREATE_COLLECTION_JOB (user_data);
  TrackerSparqlConnection *connection = TRACKER_SPARQL_CONNECTION (source_object);
  GError *error;
  GVariant *variant;
  GVariant *child;
  gchar *key = NULL;
  gchar *val = NULL;

  error = NULL;
  variant = tracker_sparql_connection_update_blank_finish (connection, res, &error);
  if (error != NULL)
    {
      g_warning ("Unable to create collection: %s", error->message);
      g_error_free (error);
      goto out;
    }

  child = g_variant_get_child_value (variant, 0); /* variant is now aa{ss} */
  g_variant_unref (variant);
  variant = child;

  child = g_variant_get_child_value (variant, 0); /* variant is now s{ss} */
  g_variant_unref (variant);
  variant = child;

  child = g_variant_get_child_value (variant, 0); /* variant is now {ss} */
  g_variant_unref (variant);
  variant = child;

  child = g_variant_get_child_value (variant, 0);
  key = g_variant_dup_string (child, NULL);
  g_variant_unref (child);

  child = g_variant_get_child_value (variant, 1);
  val = g_variant_dup_string (child, NULL);
  g_variant_unref (child);

  g_variant_unref (variant);

  if (g_strcmp0 (key, "res") == 0)
    self->created_urn = val;

 out:
  if (self->callback != NULL)
    (*self->callback) (self->created_urn, self->user_data);

  self->created_urn = NULL;
  g_free (val);
  g_free (key);
}

コード例 #2

static void
photos_create_collection_job_query_executed (GObject *source_object, GAsyncResult *res, gpointer user_data)
{
  GTask *task = G_TASK (user_data);
  TrackerSparqlConnection *connection = TRACKER_SPARQL_CONNECTION (source_object);
  GError *error;
  GVariant *variant;
  GVariant *child;
  gchar *key = NULL;
  gchar *val = NULL;

  error = NULL;
  variant = tracker_sparql_connection_update_blank_finish (connection, res, &error);
  if (error != NULL)
    {
      g_task_return_error (task, error);
      return;
    }

  child = g_variant_get_child_value (variant, 0); /* variant is now aa{ss} */
  g_variant_unref (variant);
  variant = child;

  child = g_variant_get_child_value (variant, 0); /* variant is now s{ss} */
  g_variant_unref (variant);
  variant = child;

  child = g_variant_get_child_value (variant, 0); /* variant is now {ss} */
  g_variant_unref (variant);
  variant = child;

  child = g_variant_get_child_value (variant, 0);
  key = g_variant_dup_string (child, NULL);
  g_variant_unref (child);

  child = g_variant_get_child_value (variant, 1);
  val = g_variant_dup_string (child, NULL);
  g_variant_unref (child);

  g_variant_unref (variant);

  if (g_strcmp0 (key, "res") == 0)
    g_task_return_pointer (task, g_strdup (val), g_free);
  else
    g_task_return_new_error (task, PHOTOS_ERROR, 0, "Failed to parse GVariant");

  g_free (val);
  g_free (key);
}