From e34090c39a5dfaa9f7730ec5154c6ae8cf78d3fa Mon Sep 17 00:00:00 2001
From: comwrg <xcomwrg@gmail.com>
Date: Wed, 28 Aug 2019 22:28:02 +0800
Subject: [PATCH] Improve: url-test retry dial when failed (#283)

---
 adapters/outbound/urltest.go | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/adapters/outbound/urltest.go b/adapters/outbound/urltest.go
index 6f61d8d7..b9efd8d2 100644
--- a/adapters/outbound/urltest.go
+++ b/adapters/outbound/urltest.go
@@ -33,14 +33,16 @@ func (u *URLTest) Now() string {
 	return u.fast.Name()
 }
 
-func (u *URLTest) Dial(metadata *C.Metadata) (C.Conn, error) {
-	a, err := u.fast.Dial(metadata)
-	if err != nil {
+func (u *URLTest) Dial(metadata *C.Metadata) (c C.Conn, err error) {
+	for i := 0; i < 3; i++ {
+		c, err = u.fast.Dial(metadata)
+		if err == nil {
+			c.AppendToChains(u)
+			return
+		}
 		u.fallback()
-	} else {
-		a.AppendToChains(u)
 	}
-	return a, err
+	return
 }
 
 func (u *URLTest) DialUDP(metadata *C.Metadata) (C.PacketConn, net.Addr, error) {