+#define SESSION_EVT_DEQ_NODE_HANDLER(_node_evt, _ntx)
+#endif /* SESSION_DISPATCH_DBG */
+
+#if SESSION_EVT_POLL_DBG && SESSION_DEBUG > 1
+#define SESSION_EVT_POLL_GAP(_wrk) \
+{ \
+ ELOG_TYPE_DECLARE (_e) = \
+ { \
+ .format = "nixon-gap: %d us", \
+ .format_args = "i4", \
+ }; \
+ DEC_SESSION_ED(_e, 1); \
+ ed->data[0] = (u32) ((_wrk->last_vlib_time - _wrk->last_event_poll) \
+ *1000000.0); \
+}
+#define SESSION_EVT_POLL_GAP_TRACK_HANDLER(_wrk) \
+{ \
+ if (PREDICT_TRUE (_wrk->last_event_poll != 0.0)) \
+ if (_wrk->last_vlib_time > _wrk->last_event_poll + 500e-6) \
+ SESSION_EVT_POLL_GAP(_wrk); \
+ _wrk->last_event_poll = _wrk->last_vlib_time; \
+}
+
+#define SESSION_EVT_POLL_DISPATCH_TIME_HANDLER(_wrk) \
+{ \
+ f64 diff = vlib_time_now (vlib_get_main ()) - _wrk->last_event_poll; \
+ if (diff > 5e-2) \
+ { \
+ ELOG_TYPE_DECLARE (_e) = \
+ { \
+ .format = "dispatch time: %d us", \
+ .format_args = "i4", \
+ }; \
+ DEC_SESSION_ED(_e, 1); \
+ ed->data[0] = diff *1000000.0; \
+ } \
+}
+
+#else
+#define SESSION_EVT_POLL_GAP(_wrk)
+#define SESSION_EVT_POLL_GAP_TRACK_HANDLER(_wrk)
+#define SESSION_EVT_POLL_DISPATCH_TIME_HANDLER(_wrk)
+#endif /* SESSION_EVT_POLL_DBG */
+
+#define SESSION_EVT_DISPATCH_START_HANDLER(_wrk) \
+{ \
+ if (SESSION_DEQ_EVTS > 1) \
+ SESSION_EVT_DEQ_NODE_HANDLER (_wrk, 0, 0); \
+ SESSION_EVT_POLL_GAP_TRACK_HANDLER (wrk); \
+}
+
+#define SESSION_EVT_DISPATCH_END_HANDLER(_wrk, _ntx) \
+{ \
+ if (_ntx) \
+ SESSION_EVT_DEQ_NODE_HANDLER (_wrk, 1, _ntx); \
+ SESSION_EVT_POLL_DISPATCH_TIME_HANDLER(_wrk); \
+ _wrk->last_event_poll = vlib_time_now (_wrk->vm); \
+}