+ *
+ * Note about BT_SEEK_LAST: if many events happen to be at the last
+ * timestamp, it is implementation-defined which event will be the last,
+ * and the order of events with the same timestamp may not be the same
+ * as normal iteration on the trace. Therefore, it is recommended to
+ * only use BT_SEEK_LAST to get the timestamp of the last event(s) in
+ * the trace.