Merge pull request #7 from binance-chain/release/v0.12.0-binance.1

Release/v0.12.0 binance.1

mutable_tree.go

@@ -224,6 +224,12 @@ func (tree *MutableTree) Load() (int64, error) {
 	return tree.LoadVersion(int64(0))
 }
 
+// SetVersion set current version of the tree. Only used in upgrade
+func (tree *MutableTree) SetVersion(version int64) {
+	tree.version = version
+	tree.ndb.latestVersion = version
+}
+
 // Returns the version number of the latest version found
 func (tree *MutableTree) LoadVersion(targetVersion int64) (int64, error) {
 	roots, err := tree.ndb.getRoots()
@@ -501,7 +507,3 @@ func (tree *MutableTree) addOrphans(orphans []*Node) {
 		tree.orphans[string(node.hash)] = node.version
 	}
 }
-
-func (tree *MutableTree) GetVersions() map[int64]bool {
-	return tree.versions
-}

nodedb.go

@@ -16,6 +16,10 @@ const (
 	hashSize  = tmhash.Size
 )
 
+// expose nodeDB so that state sync can directly save serialized node into
+// db without restore it as iavl tree first
+type NodeDB = nodeDB
+
 var (
 	// All node keys are prefixed with the byte 'n'. This ensures no collision is
 	// possible with the other keys, and makes them easier to traverse. They are indexed by the node hash.