feat: the status bar and the exit dump report resequencing, holes and stale packets

src/status_text.cpp

@@ -79,6 +79,21 @@ std::string format_detail(const StatusSnapshot& s) {
                 s.plot1_traces, s.plot1_samples, s.buffer_mb, s.span_s,
                 static_cast<unsigned long long>(s.time_stride));
   std::string out = buf;
+  // Nothing about resequencing is said at all while all six read zero, which is a stream that
+  // never lost ordering: the field would otherwise be six zeros on every clean run, and this
+  // string is read by eye out of the exit dump.
+  if (s.resequenced || s.late || s.stale || s.holes || s.hole_slots || s.backfilled) {
+    char note[160];
+    std::snprintf(note, sizeof(note),
+                  " | reseq %llu  late %llu  stale %llu  holes %llu (%llu slots, %llu filled)",
+                  static_cast<unsigned long long>(s.resequenced),
+                  static_cast<unsigned long long>(s.late),
+                  static_cast<unsigned long long>(s.stale),
+                  static_cast<unsigned long long>(s.holes),
+                  static_cast<unsigned long long>(s.hole_slots),
+                  static_cast<unsigned long long>(s.backfilled));
+    out += note;
+  }
   if (s.paused) out += " | paused for " + format_elapsed(s.paused_for_s);
   if (s.trigger_on) {
     out += s.have_event ? " | last event " + format_elapsed(s.since_event_s) + " ago"