From afffbb5aa9e753cd16f3cbbe296bd3de9b8404fd Mon Sep 17 00:00:00 2001
From: Fishbone <38041294+leiless@users.noreply.github.com>
Date: Fri, 2 Jul 2021 20:32:12 +0800
Subject: [PATCH] proxy.go: Don't close listener when met 'accept: too many
 open files' error

Since this error is temporary, we should continue to serving.
---
 server/proxy/proxy.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/server/proxy/proxy.go b/server/proxy/proxy.go
index f26d73d5..c32af18a 100644
--- a/server/proxy/proxy.go
+++ b/server/proxy/proxy.go
@@ -156,7 +156,11 @@ func (pxy *BaseProxy) startListenHandler(p Proxy, handler func(Proxy, net.Conn,
 				// if listener is closed, err returned
 				c, err := l.Accept()
 				if err != nil {
-					xl.Info("listener is closed")
+					xl.Warn("listener is closed: %s", err)
+					if err2, ok := err.(*net.OpError); ok && err2.Temporary() {
+						xl.Info("met temporary error when accepting, continue ...")
+						continue
+					}
 					return
 				}
 				xl.Info("get a user connection [%s]", c.RemoteAddr().String())