+ static int notification_priorities[] = {
+ [BT_NOTIFICATION_TYPE_NEW_TRACE] = 0,
+ [BT_NOTIFICATION_TYPE_NEW_STREAM_CLASS] = 1,
+ [BT_NOTIFICATION_TYPE_NEW_EVENT_CLASS] = 2,
+ [BT_NOTIFICATION_TYPE_PACKET_BEGIN] = 3,
+ [BT_NOTIFICATION_TYPE_PACKET_END] = 4,
+ [BT_NOTIFICATION_TYPE_EVENT] = 5,
+ [BT_NOTIFICATION_TYPE_END_OF_TRACE] = 6,
+ };
+ int a_prio, b_prio;
+ enum bt_notification_type a_type, b_type;
+
+ assert(a && b);
+ a_type = bt_notification_get_type(a);
+ b_type = bt_notification_get_type(b);
+ assert(a_type > BT_NOTIFICATION_TYPE_ALL);
+ assert(a_type < BT_NOTIFICATION_TYPE_NR);
+ assert(b_type > BT_NOTIFICATION_TYPE_ALL);
+ assert(b_type < BT_NOTIFICATION_TYPE_NR);
+
+ a_prio = notification_priorities[a_type];
+ b_prio = notification_priorities[b_type];
+
+ if (likely((a_type == b_type) && a_type == BT_NOTIFICATION_TYPE_EVENT)) {
+ return compare_event_notifications(a, b);
+ }
+
+ if (unlikely(a_prio != b_prio)) {
+ return a_prio < b_prio;
+ }
+
+ /* Notification types are equal, but not of type "event". */
+ switch (a_type) {
+ case BT_NOTIFICATION_TYPE_PACKET_BEGIN:
+ case BT_NOTIFICATION_TYPE_PACKET_END:
+ case BT_NOTIFICATION_TYPE_STREAM_END:
+ {
+ int64_t a_sc_id, b_sc_id;
+ struct bt_ctf_stream *a_stream, *b_stream;
+ struct bt_ctf_stream_class *a_sc, *b_sc;
+
+ a_stream = internal_bt_notification_get_stream(a);
+ b_stream = internal_bt_notification_get_stream(b);
+ assert(a_stream && b_stream);
+
+ a_sc = bt_ctf_stream_get_class(a_stream);
+ b_sc = bt_ctf_stream_get_class(b_stream);
+ assert(a_sc && b_sc);
+
+ a_sc_id = bt_ctf_stream_class_get_id(a_sc);
+ b_sc_id = bt_ctf_stream_class_get_id(b_sc);
+ assert(a_sc_id >= 0 && b_sc_id >= 0);
+ bt_put(a_sc);
+ bt_put(a_stream);
+ bt_put(b_sc);
+ bt_put(b_stream);
+ return a_sc_id < b_sc_id;
+ }
+ case BT_NOTIFICATION_TYPE_NEW_TRACE:
+ case BT_NOTIFICATION_TYPE_END_OF_TRACE:
+ /* Impossible to have two separate traces. */
+ default:
+ assert(0);
+ }
+
+ assert(0);