From 892a5e563a0cdd8a7c9bb45d149b6823c236e5c7 Mon Sep 17 00:00:00 2001
From: WeidiDeng <weidi_deng@icloud.com>
Date: Mon, 28 Oct 2024 14:10:46 +0800
Subject: [PATCH] set error after listener closed

---
 layer4/listener.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/layer4/listener.go b/layer4/listener.go
index 33622d7..d2e4ae5 100644
--- a/layer4/listener.go
+++ b/layer4/listener.go
@@ -135,6 +135,7 @@ func (l *listener) loop() {
 		conn, err := l.Listener.Accept()
 		// listener closed
 		if l.closed.Load() {
+			l.err = net.ErrClosed
 			break
 		}