Got rid of redundant logic with isBackup. (#4639)

consensus/consensus.go

@@ -254,6 +254,8 @@ func (consensus *Consensus) getConsensusLeaderPrivateKey() (*bls.PrivateKeyWrapp
 }
 
 func (consensus *Consensus) IsBackup() bool {
+	consensus.mutex.RLock()
+	defer consensus.mutex.RUnlock()
 	return consensus.isBackup
 }
 

consensus/consensus_service.go

@@ -190,10 +190,6 @@ func (consensus *Consensus) SetMode(m Mode) {
 
 // SetMode sets the mode of consensus
 func (consensus *Consensus) setMode(m Mode) {
-	if m == Normal && consensus.isBackup {
-		m = NormalBackup
-	}
-
 	consensus.getLogger().Debug().
 		Str("Mode", m.String()).
 		Msg("[SetMode]")
@@ -202,11 +198,12 @@ func (consensus *Consensus) setMode(m Mode) {
 
 // SetIsBackup sets the mode of consensus
 func (consensus *Consensus) SetIsBackup(isBackup bool) {
+	consensus.mutex.Lock()
+	defer consensus.mutex.Unlock()
 	consensus.getLogger().Debug().
 		Bool("IsBackup", isBackup).
 		Msg("[SetIsBackup]")
 	consensus.isBackup = isBackup
-	consensus.current.SetIsBackup(isBackup)
 }
 
 // Mode returns the mode of consensus

consensus/consensus_v2.go

@@ -106,7 +106,7 @@ func (consensus *Consensus) HandleMessageUpdate(ctx context.Context, peer libp2p
 		consensus.isLeader()
 
 	// if in backup normal mode, force ignore view change event and leader event.
-	if consensus.current.Mode() == NormalBackup {
+	if consensus.isBackup {
 		canHandleViewChange = false
 		intendedForLeader = false
 	}

consensus/enums.go

@@ -14,8 +14,6 @@ const (
 	Syncing
 	// Listening ..
 	Listening
-	// NormalBackup Backup Node ..
-	NormalBackup
 )
 
 // FBFTPhase : different phases of consensus
@@ -34,7 +32,6 @@ var (
 		ViewChanging: "ViewChanging",
 		Syncing:      "Syncing",
 		Listening:    "Listening",
-		NormalBackup: "NormalBackup",
 	}
 	phaseNames = map[FBFTPhase]string{
 		FBFTAnnounce: "Announce",

consensus/validator.go

@@ -133,7 +133,7 @@ func (consensus *Consensus) validateNewBlock(recvMsg *FBFTMessage) (*types.Block
 }
 
 func (consensus *Consensus) prepare() {
-	if consensus.IsBackup() {
+	if consensus.isBackup {
 		return
 	}
 
@@ -152,7 +152,7 @@ func (consensus *Consensus) prepare() {
 
 // sendCommitMessages send out commit messages to leader
 func (consensus *Consensus) sendCommitMessages(blockObj *types.Block) {
-	if consensus.IsBackup() || blockObj == nil {
+	if consensus.isBackup || blockObj == nil {
 		return
 	}
 

consensus/view_change.go

@@ -33,8 +33,6 @@ type State struct {
 	// view changing id is used during view change mode
 	// it is the next view id
 	viewChangingID uint64
-
-	isBackup bool
 }
 
 // Mode return the current node mode
@@ -44,10 +42,6 @@ func (pm *State) Mode() Mode {
 
 // SetMode set the node mode as required
 func (pm *State) SetMode(s Mode) {
-	if s == Normal && pm.isBackup {
-		s = NormalBackup
-	}
-
 	pm.mode = s
 }
 
@@ -81,10 +75,6 @@ func (pm *State) GetViewChangeDuraion() time.Duration {
 	return time.Duration(diff * diff * int64(viewChangeDuration))
 }
 
-func (pm *State) SetIsBackup(isBackup bool) {
-	pm.isBackup = isBackup
-}
-
 // fallbackNextViewID return the next view ID and duration when there is an exception
 // to calculate the time-based viewId
 func (consensus *Consensus) fallbackNextViewID() (uint64, time.Duration) {