From 097e0abca9e34e00477047acb29c861f140f141e Mon Sep 17 00:00:00 2001
From: "Paul W. Homer" <paul_homer@yahoo.com>
Date: Thu, 23 Mar 2017 14:46:40 -0400
Subject: [PATCH] Added in locking

---
 mem_db.go | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/mem_db.go b/mem_db.go
index ef410e88..5307d1a7 100644
--- a/mem_db.go
+++ b/mem_db.go
@@ -78,6 +78,9 @@ type memDBIterator struct {
 }
 
 func (it *memDBIterator) Create(db *MemDB) *memDBIterator {
+	db.mtx.Lock()
+	defer db.mtx.Unlock()
+
 	if it == nil {
 		it = &memDBIterator{}
 	}
@@ -104,6 +107,9 @@ func (it *memDBIterator) Key() []byte {
 }
 
 func (it *memDBIterator) Value() []byte {
+	it.db.mtx.Lock()
+	defer it.db.mtx.Unlock()
+
 	return it.db.db[it.keys[it.last]]
 }