broadcast tip changes quicker

Author: vans163

ex/lib/api/api_chain.ex

@@ -90,7 +90,7 @@ defmodule API.Chain do
 
     def stat_txs_sec() do
       height = Fabric.rooted_tip_height()
-      last_100 = Enum.sum_by(height..(height-100), fn(height)->
+      last_100 = Enum.sum_by((height-100)..height, fn(height)->
         length(Fabric.entries_by_height(height) |> List.first() |> Map.get(:txs))
       end)
       last_100/50

ex/lib/consensus/fabric_gen.ex

@@ -269,6 +269,7 @@ defmodule FabricGen do
     #TODO: fix this in a better way later
     peers = Application.fetch_env!(:ama, :seedanrs_as_peers)
     send(NodeGen.get_socket_gen(), {:send_to, peers, msg})
+    send(NodeGen, :signal_tips_change)
 
     next_entry
   end

ex/lib/node/node_gen.ex

@@ -121,6 +121,14 @@ defmodule NodeGen do
         innerstate = NodeState.handle(op, innerstate, args)
         Map.put(state, :ns, innerstate)
 
+      :signal_tips_change ->
+        :erlang.spawn(fn()->
+          msg = NodeProto.event_tip()
+          {vals, peers} = NodeANR.handshaked_and_online()
+          send(get_socket_gen(), {:send_to, vals ++ Enum.take(peers, 10), msg})
+        end)
+        state
+
     end
     {:noreply, state}
   end