From 23915d6eff1ba63c5a9967a519879225312ead01 Mon Sep 17 00:00:00 2001
From: nocjj <1250062498@qq.com>
Date: Mon, 15 Mar 2021 20:03:18 +0800
Subject: [PATCH] performance: change memset location

There is no need to clear all mem in add_domains, beacause memcpy will
write the front section. We only need to clear the mem in the end, which
will improve the performance.

Signed-off-by: nocjj <1250062498@qq.com>
---
 src/domain.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/domain.c b/src/domain.c
index b8c527a..977cabe 100644
--- a/src/domain.c
+++ b/src/domain.c
@@ -55,11 +55,12 @@ struct domain *add_domains(struct domain_list *list)
     if (new_list == NULL) {
         return NULL;
     }
-    memset(new_list, 0, sizeof(struct domain) * (list->num + 1));
     memcpy(new_list, list->domains, sizeof(struct domain) * list->num);
     free(list->domains);
     list->domains = new_list;
     list->num++;
+    memset(&(list->domains[list->num - 1]), 0, sizeof(struct domain));
+
     return &(list->domains[list->num - 1]);
 }
 
-- 
2.27.0