From 1b98dd07047072fb3a5a79d04177c65abc720ae1 Mon Sep 17 00:00:00 2001
From: Xie Han <63350856@qq.com>
Date: Fri, 2 Jun 2023 21:33:52 +0800
Subject: [PATCH] Remove the usage of std::random_device.

---
 src/nameservice/UpstreamPolicies.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/nameservice/UpstreamPolicies.cc b/src/nameservice/UpstreamPolicies.cc
index 5e08b62354..2e8cf6dac2 100644
--- a/src/nameservice/UpstreamPolicies.cc
+++ b/src/nameservice/UpstreamPolicies.cc
@@ -20,6 +20,7 @@
 // for std::min on windows
 #define NOMINMAX
 
+#include <stdlib.h>
 #include <mutex>
 #include <random>
 #include <algorithm>
@@ -31,7 +32,7 @@
 class EndpointGroup
 {
 public:
-	EndpointGroup(int group_id, UPSGroupPolicy *policy) : gen(rd())
+	EndpointGroup(int group_id, UPSGroupPolicy *policy) : gen(std::rand())
 	{
 		this->id = group_id;
 		this->policy = policy;
@@ -47,7 +48,6 @@ class EndpointGroup
 	UPSGroupPolicy *policy;
 	struct rb_node rb;
 	std::mutex mutex;
-	std::random_device rd;
 	std::mt19937 gen;
 	std::vector<EndpointAddress *> mains;
 	std::vector<EndpointAddress *> backups;