SICS-723 Provide a detector/reset_trip node to notify GumTree and allow reset.

site_ansto/instrument/sans/config/hmm/hmm_configuration.tcl

@@ -64,6 +64,26 @@ proc ::histogram_memory::isc_initialize {} {
   }
 }
 
+# Returns 0 If all trips acknowledged, -n if n trips unacknowledged, +n if too many acks?
+::utility::macro::getset float ::histogram_memory::reset_trip {args} {
+  set num_trips [ SplitReply [hmm configure detector_protect_num_trip] ]
+  set num_acks  [ SplitReply [hmm configure detector_protect_num_trip_ack] ]
+  set trip_cnt_diff [expr {$num_acks - $num_trips}]
+  if {$args == ""} {
+    return "reset_trip = $trip_cnt_diff"
+  } else {
+    if {$trip_cnt_diff != 0} {
+      hmm configure fat_detector_protect_num_trip_ack $num_trips
+      hmm astop
+      wait 2
+      hmm init
+    }
+  }
+}
+sicslist setatt ::histogram_memory::reset_trip klass detector
+sicslist setatt ::histogram_memory::reset_trip long_name reset_trip
+sicslist setatt ::histogram_memory::reset_trip data false
+
 proc histmem {cmd args} {
   eval "_histmem $cmd $args"
 }