From 2e5c5cc8a3f6046d3e4e3a3557f4a75e9bc77b6d Mon Sep 17 00:00:00 2001
From: Wang Yaofu <voipman@sina.cn>
Date: Wed, 15 Jun 2022 16:20:18 +0800
Subject: [PATCH] fix: Duplicate close net.Listener

http/server.go:
line: 3016
net.Listener is close in func http.Server.Serve() by default.

// Some code piece of http.Server.Serve()
func (srv *Server) Serve(l net.Listener) error {
	if fn := testHookServerServe; fn != nil {
		fn(srv, l) // call hook with unwrapped listener
	}

	origListener := l
	l = &onceCloseListener{Listener: l}
	// HERE: listener is close by default
	defer l.Close()
---
 gin.go | 2 --
 1 file changed, 2 deletions(-)

diff --git a/gin.go b/gin.go
index f9324299..db8b21a4 100644
--- a/gin.go
+++ b/gin.go
@@ -518,7 +518,6 @@ func (engine *Engine) RunUnix(file string) (err error) {
 	if err != nil {
 		return
 	}
-	defer listener.Close()
 	defer os.Remove(file)
 
 	err = http.Serve(listener, engine.Handler())
@@ -542,7 +541,6 @@ func (engine *Engine) RunFd(fd int) (err error) {
 	if err != nil {
 		return
 	}
-	defer listener.Close()
 	err = engine.RunListener(listener)
 	return
 }