From a6a33058747fda4840f0fb3d4c862eb7d18d8a9c Mon Sep 17 00:00:00 2001
From: wangyu <wangyu.cn@gmail.com>
Date: Wed, 20 Jun 2018 03:27:33 -0700
Subject: [PATCH] fix compile error on mac

---
 common.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/common.h b/common.h
index bbcb5f2..5ca5916 100644
--- a/common.h
+++ b/common.h
@@ -50,6 +50,7 @@ typedef int socklen_t;
 #include<unordered_set>
 #include<map>
 #include<list>
+#include<string>
 
 using  namespace std;