From 1247c619ff50faa79c7a219c0fc530c6acb591bd Mon Sep 17 00:00:00 2001
From: bigpigeon <bigpigeon0@gmail.com>
Date: Sat, 15 Jul 2017 14:33:14 +0800
Subject: [PATCH] 1. export Logger lock

---
 logger.go | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/logger.go b/logger.go
index b44966f..7fb6b2b 100644
--- a/logger.go
+++ b/logger.go
@@ -315,3 +315,12 @@ func (logger *Logger) level() Level {
 func (logger *Logger) SetLevel(level Level) {
 	atomic.StoreUint32((*uint32)(&logger.Level), uint32(level))
 }
+
+// export mu lock and unlock @bigpigeon
+func (logger *Logger) Lock() {
+	logger.mu.Lock()
+}
+
+func (logger *Logger) Unlock() {
+	logger.mu.Unlock()
+}