X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=lib%2Fgraph%2Fcomponent-filter.c;h=b59543b8d95348cb4682a7109212be3db380d990;hb=8cc56726828daf6e193dc131435948d2c9a2cb4e;hp=32a12924737f7af43569dafecdaf0cc2c8dfa5e7;hpb=c5b9b4417bedfbec9b5dd23b8395ccdd4eeffc44;p=babeltrace.git

diff --git a/lib/graph/component-filter.c b/lib/graph/component-filter.c
index 32a12924..b59543b8 100644
--- a/lib/graph/component-filter.c
+++ b/lib/graph/component-filter.c
@@ -56,6 +56,22 @@ end:
 	return (void *) filter;
 }
 
+const bt_component_class_filter *
+bt_component_filter_borrow_class_const(
+		const bt_component_filter *component)
+{
+	struct bt_component_class *cls;
+
+	BT_ASSERT_PRE_NON_NULL(component, "Component");
+
+	cls = component->parent.class;
+
+	BT_ASSERT(cls);
+	BT_ASSERT(cls->type == BT_COMPONENT_CLASS_TYPE_FILTER);
+
+	return (bt_component_class_filter *) cls;
+}
+
 uint64_t bt_component_filter_get_output_port_count(
 		const struct bt_component_filter *comp)
 {
@@ -100,13 +116,12 @@ enum bt_self_component_status bt_self_component_filter_add_output_port(
 		struct bt_self_component_port_output **self_port)
 {
 	struct bt_component *comp = (void *) self_comp;
-	int status = BT_SELF_COMPONENT_STATUS_OK;
+	enum bt_self_component_status status;
 	struct bt_port *port = NULL;
 
 	/* bt_component_add_output_port() logs details and errors */
-	port = (void *) bt_component_add_output_port(comp, name, user_data);
-	if (!port) {
-		status = BT_SELF_COMPONENT_STATUS_NOMEM;
+	status = bt_component_add_output_port(comp, name, user_data, &port);
+	if (status != BT_SELF_COMPONENT_STATUS_OK) {
 		goto end;
 	}
 
@@ -168,14 +183,13 @@ enum bt_self_component_status bt_self_component_filter_add_input_port(
 		const char *name, void *user_data,
 		struct bt_self_component_port_input **self_port)
 {
-	int status = BT_SELF_COMPONENT_STATUS_OK;
+	enum bt_self_component_status status;
 	struct bt_port *port = NULL;
 	struct bt_component *comp = (void *) self_comp;
 
 	/* bt_component_add_input_port() logs details/errors */
-	port = (void *) bt_component_add_input_port(comp, name, user_data);
-	if (!port) {
-		status = BT_SELF_COMPONENT_STATUS_NOMEM;
+	status = bt_component_add_input_port(comp, name, user_data, &port);
+	if (status != BT_SELF_COMPONENT_STATUS_OK) {
 		goto end;
 	}