lib: Add functions to borrow specialized component classes from specialized components

[babeltrace.git] / lib / graph / component-sink.c

diff --git a/lib/graph/component-sink.c b/lib/graph/component-sink.c
index 41a9a376108ff93e67730a2d4293708b21587c1e..30c15609723adfa14ca096867fedc4e8443830db 100644 (file)
--- a/lib/graph/component-sink.c
+++ b/lib/graph/component-sink.c
@@ -55,6 +55,22 @@ end:
        return (void *) sink;
 }
 
+const bt_component_class_sink *
+bt_component_sink_borrow_class_const(
+               const bt_component_sink *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_SINK);
+
+       return (bt_component_class_sink *) cls;
+}
+
 uint64_t bt_component_sink_get_input_port_count(
                const struct bt_component_sink *component)
 {