From 59dd6d090532141040367c25646621d2dc9c78f0 Mon Sep 17 00:00:00 2001
From: Pavel Kirienko <pavel.kirienko@gmail.com>
Date: Sun, 24 May 2015 20:06:13 +0300
Subject: [PATCH] Raft fix

---
 .../protocol/dynamic_node_id_server/distributed/raft_core.hpp  | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libuavcan/include/uavcan/protocol/dynamic_node_id_server/distributed/raft_core.hpp b/libuavcan/include/uavcan/protocol/dynamic_node_id_server/distributed/raft_core.hpp
index 97a92f70aa..3066d8da88 100644
--- a/libuavcan/include/uavcan/protocol/dynamic_node_id_server/distributed/raft_core.hpp
+++ b/libuavcan/include/uavcan/protocol/dynamic_node_id_server/distributed/raft_core.hpp
@@ -642,6 +642,8 @@ private:
          */
         if (request.term > persistent_state_.getCurrentTerm())
         {
+            switchState(ServerStateFollower);   // Our term is stale, so we can't serve as leader
+
             int res = persistent_state_.setCurrentTerm(request.term);
             if (res < 0)
             {
@@ -679,6 +681,7 @@ private:
 
             if (response.vote_granted)
             {
+                switchState(ServerStateFollower);   // Avoiding race condition when Candidate
                 registerActivity();                 // This is necessary to avoid excessive elections
 
                 const int res = persistent_state_.setVotedFor(request.getSrcNodeID());