From 2066723e714e1cc52b6a7991d0bfd3749b3a6203 Mon Sep 17 00:00:00 2001
From: Lunny Xiao <xiaolunwen@gmail.com>
Date: Tue, 26 Sep 2017 20:05:07 +0800
Subject: [PATCH] implement GroupPolicy of GroupPolicyHandler

---
 engine_group_policy.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/engine_group_policy.go b/engine_group_policy.go
index 5ac89f71..e79f7d52 100644
--- a/engine_group_policy.go
+++ b/engine_group_policy.go
@@ -18,6 +18,11 @@ type GroupPolicy interface {
 // GroupPolicyHandler should be used when a function is a GroupPolicy
 type GroupPolicyHandler func(*EngineGroup) *Engine
 
+// Slave implements the chosen of slaves
+func (h GroupPolicyHandler) Slave(eg *EngineGroup) *Engine {
+	return h(eg)
+}
+
 // RandomPolicy implmentes randomly chose the slave of slaves
 type RandomPolicy struct {
 	r *rand.Rand