From 32cd76396dc2a64db24ce33d8e0b3d64efd815a6 Mon Sep 17 00:00:00 2001
From: nuczzz <nuc_zzz@163.com>
Date: Sat, 27 Jul 2019 18:54:13 +0800
Subject: [PATCH] fix graceful bug

---
 grace/server.go | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/grace/server.go b/grace/server.go
index 1ce8bc78..6e1faa43 100644
--- a/grace/server.go
+++ b/grace/server.go
@@ -46,7 +46,10 @@ func (srv *Server) Serve() (err error) {
 
 	log.Println(syscall.Getpid(), srv.ln.Addr(), "Listener closed.")
 	// wait for Shutdown to return
-	return <-srv.terminalChan
+	if shutdownErr := <-srv.terminalChan; shutdownErr != nil {
+		return shutdownErr
+	}
+	return
 }
 
 // ListenAndServe listens on the TCP network address srv.Addr and then calls Serve