X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=src%2Flib%2Fgraph%2Fmessage%2Fiterator.h;fp=src%2Flib%2Fgraph%2Fmessage%2Fiterator.h;h=93d9aa23e122f81d8d0eef56c18bd07b7a3dc389;hb=ca02df0ad8ae9a1a3640956d91ca31059d0b203a;hp=b8a9dfa2f65e090cb0cd7840360d66e4ba261ffe;hpb=51f97fcc8c58d17aa224c150735f7e256e796f4e;p=babeltrace.git

diff --git a/src/lib/graph/message/iterator.h b/src/lib/graph/message/iterator.h
index b8a9dfa2..93d9aa23 100644
--- a/src/lib/graph/message/iterator.h
+++ b/src/lib/graph/message/iterator.h
@@ -103,6 +103,27 @@ struct bt_self_component_port_input_message_iterator {
 	struct bt_connection *connection; /* Weak */
 	struct bt_graph *graph; /* Weak */
 
+	/*
+	 * Array of
+	 * `struct bt_self_component_port_input_message_iterator *`
+	 * (weak).
+	 *
+	 * This is an array of upstream message iterators on which this
+	 * iterator depends. The references are weak: an upstream
+	 * message iterator is responsible for removing its entry within
+	 * this array on finalization/destruction.
+	 */
+	GPtrArray *upstream_msg_iters;
+
+	/*
+	 * Downstream message iterator which depends on this message
+	 * iterator (weak).
+	 *
+	 * This can be `NULL` if this message iterator's owner is a sink
+	 * component.
+	 */
+	struct bt_self_component_port_input_message_iterator *downstream_msg_iter;
+
 	struct {
 		bt_self_component_port_input_message_iterator_next_method next;
 		bt_self_component_port_input_message_iterator_seek_ns_from_origin_method seek_ns_from_origin;