Introduce bt_plugin and bt_component_class

[babeltrace.git] / include / babeltrace / plugin / component-factory.h

diff --git a/include/babeltrace/plugin/component-factory.h b/include/babeltrace/plugin/component-factory.h
index ded452f1430f487194a6c9ee89d5519f16a83cd5..5915a5b1b36c8f39cdac5c04e634d223dc882cdf 100644 (file)
--- a/include/babeltrace/plugin/component-factory.h
+++ b/include/babeltrace/plugin/component-factory.h
@@ -40,30 +40,28 @@ extern "C" {
  */
 enum bt_component_factory_status {
        /** General error. */
-       BT_COMPONENT_FACTORY_STATUS_ERROR =     -128,
+       BT_COMPONENT_FACTORY_STATUS_ERROR =             -128,
+
+       /** Invalid plugin. */
+       BT_COMPONENT_FACTORY_STATUS_INVAL_PLUGIN =      -6,
 
        /** Invalid arguments. */
-       /* -22 for compatibility with -EINVAL */
-       BT_COMPONENT_FACTORY_STATUS_INVAL =     -22,
+       BT_COMPONENT_FACTORY_STATUS_INVAL =             -5,
 
        /** Memory allocation failure. */
-       /* -12 for compatibility with -ENOMEM */
-       BT_COMPONENT_FACTORY_STATUS_NOMEM =     -12,
+       BT_COMPONENT_FACTORY_STATUS_NOMEM =             -4,
 
        /** I/O error. */
-       /* -5 for compatibility with -EIO */
-       BT_COMPONENT_FACTORY_STATUS_IO =        -5,
+       BT_COMPONENT_FACTORY_STATUS_IO =                -3,
 
        /** No such file or directory. */
-       /* -2 for compatibility with -ENOENT */
-       BT_COMPONENT_FACTORY_STATUS_NOENT =     -2,
+       BT_COMPONENT_FACTORY_STATUS_NOENT =             -2,
 
        /** Operation not permitted. */
-       /* -1 for compatibility with -EPERM */
-       BT_COMPONENT_FACTORY_STATUS_PERM =      -1,
+       BT_COMPONENT_FACTORY_STATUS_PERM =              -1,
 
        /** No error, okay. */
-       BT_COMPONENT_FACTORY_STATUS_OK =        0,
+       BT_COMPONENT_FACTORY_STATUS_OK =                0,
 };
 
 struct bt_component_factory;
@@ -76,6 +74,13 @@ struct bt_component_factory;
 extern
 struct bt_component_factory *bt_component_factory_create(void);
 
+/**
+ * Get the list of components registered to this factory.
+ */
+extern
+struct bt_object *bt_component_factory_get_components(
+               struct bt_component_factory *factory);
+
 /**
  * Recursively load and register Babeltrace plugins under a given path.
  *
@@ -93,13 +98,13 @@ enum bt_component_factory_status bt_component_factory_load(
 extern
 enum bt_component_factory_status
 bt_component_factory_register_source_component_class(
-       struct bt_component_factory *factory, const char *name,
-       bt_component_source_init_cb init);
+               struct bt_component_factory *factory, const char *name,
+               bt_component_source_init_cb init);
 
 extern
 enum bt_component_factory_status bt_component_factory_register_sink_component_class(
-       struct bt_component_factory *factory, const char *name,
-       bt_component_sink_init_cb init);
+               struct bt_component_factory *factory, const char *name,
+               bt_component_sink_init_cb init);
 
 extern
 void bt_component_factory_destroy(struct bt_component_factory *factory);