From c8c776705909b8b9f1bd6e2c808d5d87dcb9e08b Mon Sep 17 00:00:00 2001
From: Aleksandr Bezobchuk <alex@tendermint.com>
Date: Thu, 5 Jul 2018 11:05:43 -0400
Subject: [PATCH] Update Ethermint stateDB API

---
 state/database.go | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/state/database.go b/state/database.go
index e60c31271..b93ae252f 100644
--- a/state/database.go
+++ b/state/database.go
@@ -43,8 +43,8 @@ type Database struct {
 	codeDB    dbm.DB
 	ethTrieDB *ethtrie.Database
 
-	// TODO: Do we need this?
-	tracing bool
+	// TODO: Do we need this/document?
+	Tracing bool
 }
 
 // NewDatabase returns a reference to an initialized Database type which
@@ -165,6 +165,12 @@ func (db *Database) ContractCodeSize(addrHash, codeHash ethcommon.Hash) (int, er
 	return len(db.codeDB.Get(codeHash[:])), nil
 }
 
+// Commit commits the underlying Cosmos SDK multi-store returning the commit
+// ID.
+func (db *Database) Commit() types.CommitID {
+	return db.stateStore.Commit()
+}
+
 // TrieDB implements Ethereum's state.Database interface. It returns Ethereum's
 // trie.Database low level trie database used for contract state storage. In
 // the context of Ethermint, it'll be used to solely store mappings of