From d1f68865587bed9d1793644d378129bc9d9e53e4 Mon Sep 17 00:00:00 2001
From: beyondkmp <beyondkmp@gmail.com>
Date: Tue, 26 Mar 2019 23:48:03 +0800
Subject: [PATCH] Style: use atomic CompareAndSwap (#151)

---
 adapters/outbound/urltest.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/adapters/outbound/urltest.go b/adapters/outbound/urltest.go
index 84fdccbe6..ecca07b71 100644
--- a/adapters/outbound/urltest.go
+++ b/adapters/outbound/urltest.go
@@ -92,7 +92,7 @@ func (u *URLTest) fallback() {
 }
 
 func (u *URLTest) speedTest() {
-	if atomic.AddInt32(&u.once, 1) != 1 {
+	if atomic.CompareAndSwapInt32(&u.once, 0, 1) {
 		return
 	}
 	defer atomic.StoreInt32(&u.once, 0)