Implement the component graph interface

[babeltrace.git] / include / babeltrace / component / component.h

diff --git a/include/babeltrace/component/component.h b/include/babeltrace/component/component.h
index b6a4830c3007dd4b551316500028ff70e49cc4e5..0d3e355ac75e7c3b676f2f7eabc644f6ee9e0960 100644 (file)
--- a/include/babeltrace/component/component.h
+++ b/include/babeltrace/component/component.h
@@ -27,6 +27,7 @@
  * SOFTWARE.
  */
 
+#include <babeltrace/component/component-class.h>
 #include <babeltrace/component/notification/iterator.h>
 #include <babeltrace/values.h>
 #include <stdio.h>
@@ -35,6 +36,11 @@
 extern "C" {
 #endif
 
+struct bt_component_class;
+struct bt_component_graph;
+struct bt_component;
+struct bt_value;
+
 /**
  * Status code. Errors are always negative.
  */
@@ -56,12 +62,10 @@ enum bt_component_status {
        BT_COMPONENT_STATUS_INVALID =           -3,
        /** Memory allocation failure. */
        BT_COMPONENT_STATUS_NOMEM =             -4,
+       /** Element not found. */
+       BT_COMPONENT_STATUS_NOT_FOUND =         -5,
 };
 
-struct bt_component_class;
-struct bt_component;
-struct bt_value;
-
 /**
  * Create an instance of a component from a component class.
  *
@@ -116,6 +120,8 @@ extern struct bt_component_class *bt_component_get_class(
 extern enum bt_component_class_type bt_component_get_class_type(
                struct bt_component *component);
 
+extern struct bt_graph *bt_component_get_graph(struct bt_component *component);
+
 #ifdef __cplusplus
 }
 #endif