X-Git-Url: http://git.osdn.net/view?p=bytom%2Fvapor.git;a=blobdiff_plain;f=protocol%2Fprotocol.go;h=cb31fe39b7fc1039b3857f497e5445de0b3c6c6a;hp=98b285b032ccdf59d9a49ef1a53db1e218600891;hb=4607cea3c6d3b1501ae1edb2c078b9ae0ee4bc79;hpb=3bbfe8df7c889d27f65c803d6baf4267db8694c6

diff --git a/protocol/protocol.go b/protocol/protocol.go
index 98b285b0..cb31fe39 100644
--- a/protocol/protocol.go
+++ b/protocol/protocol.go
@@ -5,12 +5,12 @@ import (
 
 	log "github.com/sirupsen/logrus"
 
+	"github.com/vapor/common"
 	"github.com/vapor/config"
 	"github.com/vapor/event"
 	"github.com/vapor/protocol/bc"
 	"github.com/vapor/protocol/bc/types"
 	"github.com/vapor/protocol/state"
-	"github.com/vapor/common"
 )
 
 const maxProcessBlockChSize = 1024
@@ -112,7 +112,11 @@ func (c *Chain) BestBlockHash() *bc.Hash {
 	return &c.bestNode.Hash
 }
 
-// BestBlockHeader returns the chain tail block
+// BestIrreversibleHeader returns the chain best irreversible block
+func (c *Chain) BestIrreversibleHeader() *types.BlockHeader {
+	return c.bestIrreversibleNode.BlockHeader()
+}
+
 func (c *Chain) BestBlockHeader() *types.BlockHeader {
 	node := c.index.BestNode()
 	return node.BlockHeader()