From f387e3e27d3304333af11a2a66ee5cd773ad00bb Mon Sep 17 00:00:00 2001
From: Xiang Li <xiang.li@coreos.com>
Date: Thu, 19 Jun 2014 15:56:47 -0700
Subject: [PATCH] raft: add Entry.isConfig

---
 raft/log.go  | 4 ++++
 raft/raft.go | 4 ++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/raft/log.go b/raft/log.go
index b7a6b64fc..cf7e342f5 100644
--- a/raft/log.go
+++ b/raft/log.go
@@ -13,6 +13,10 @@ type Entry struct {
 	Data []byte
 }
 
+func (e *Entry) isConfig() bool {
+	return e.Type == AddNode || e.Type == RemoveNode
+}
+
 type log struct {
 	ents      []Entry
 	committed int
diff --git a/raft/raft.go b/raft/raft.go
index 07d4632e2..0c6810f31 100644
--- a/raft/raft.go
+++ b/raft/raft.go
@@ -227,7 +227,7 @@ func (sm *stateMachine) becomeLeader() {
 	sm.state = stateLeader
 
 	for _, e := range sm.log.ents[sm.log.committed:] {
-		if e.Type == AddNode || e.Type == RemoveNode {
+		if e.isConfig() {
 			sm.pendingConf = true
 		}
 	}
@@ -270,7 +270,7 @@ func (sm *stateMachine) Step(m Message) (ok bool) {
 		switch sm.lead {
 		case sm.id:
 			e := m.Entries[0]
-			if e.Type == AddNode || e.Type == RemoveNode {
+			if e.isConfig() {
 				if sm.pendingConf {
 					return false
 				}