1 files changed, 9 insertions, 9 deletions
diff --git a/vendor/github.com/dexon-foundation/dexon-consensus/core/total-ordering.go b/vendor/github.com/dexon-foundation/dexon-consensus/core/total-ordering.go
index 9b980c0fb..90848ce7a 100644
--- a/vendor/github.com/dexon-foundation/dexon-consensus/core/total-ordering.go
+++ b/vendor/github.com/dexon-foundation/dexon-consensus/core/total-ordering.go
@@ -58,6 +58,8 @@ var (
 	ErrForwardAck = errors.New("forward ack")
 	// ErrUnexpected means general (I'm lazy) errors.
 	ErrUnexpected = errors.New("unexpected")
+	// ErrTotalOrderingPhiRatio means invalid phi ratio
+	ErrTotalOrderingPhiRatio = errors.New("invalid total ordering phi ratio")
 )
 
 // totalOrderingConfig is the configuration for total ordering.
@@ -83,14 +85,6 @@ func (config *totalOrderingConfig) fromConfig(round uint64, cfg *types.Config) {
 	config.setupRoundBasedFields(round, cfg)
 }
 
-func newGenesisTotalOrderingConfig(
-	dMoment time.Time, config *types.Config) *totalOrderingConfig {
-	c := &totalOrderingConfig{}
-	c.fromConfig(0, config)
-	c.setRoundBeginTime(dMoment)
-	return c
-}
-
 func newTotalOrderingConfig(
 	prev *totalOrderingConfig, cur *types.Config) *totalOrderingConfig {
 	c := &totalOrderingConfig{}
@@ -798,7 +792,10 @@ type totalOrdering struct {
 }
 
 // newTotalOrdering constructs an totalOrdering instance.
-func newTotalOrdering(config *totalOrderingConfig) *totalOrdering {
+func newTotalOrdering(dMoment time.Time, cfg *types.Config) *totalOrdering {
+	config := &totalOrderingConfig{}
+	config.fromConfig(0, cfg)
+	config.setRoundBeginTime(dMoment)
 	candidates := make([]*totalOrderingCandidateInfo, config.numChains)
 	to := &totalOrdering{
 		pendings:              make(map[common.Hash]*types.Block),
@@ -822,6 +819,9 @@ func (to *totalOrdering) appendConfig(
 	if round != uint64(len(to.configs))+to.configs[0].roundID {
 		return ErrRoundNotIncreasing
 	}
+	if config.PhiRatio < 0.5 || config.PhiRatio > 1.0 {
+		return ErrTotalOrderingPhiRatio
+	}
 	to.configs = append(
 		to.configs,
 		newTotalOrderingConfig(to.configs[len(to.configs)-1], config))