From c66dd48b6e1e0350119810f80d46845806156cec Mon Sep 17 00:00:00 2001
From: James Bardin <j.bardin@gmail.com>
Date: Thu, 6 Jul 2017 16:25:47 -0400
Subject: [PATCH] make shadow.Value a Locker

This way it's correctly handled by CopyStructure
---
 helper/shadow/value.go | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/helper/shadow/value.go b/helper/shadow/value.go
index 2413335b8..178b7e78a 100644
--- a/helper/shadow/value.go
+++ b/helper/shadow/value.go
@@ -26,6 +26,14 @@ type Value struct {
 	valueSet bool
 }
 
+func (v *Value) Lock() {
+	v.lock.Lock()
+}
+
+func (v *Value) Unlock() {
+	v.lock.Unlock()
+}
+
 // Close closes the value. This can never fail. For a definition of
 // "close" see the struct docs.
 func (w *Value) Close() error {