+ gint notifier_count;
+
+ /* The barrier waiting on this operation. Support for more than one
+ * barrier for a single async is not well-supported and should be avoided
+ * if possible. */
+ BlueSkyStoreAsync *barrier;
+
+ bluesky_time_hires start_time; /* Time operation was submitted. */
+ bluesky_time_hires exec_time; /* Time processing started on operation. */