From 3a2b819786707b1bf5dd42f3240bb65675e9d1a1 Mon Sep 17 00:00:00 2001
From: gVisor bot <gvisor-bot@google.com>
Date: Sun, 28 May 2023 09:33:42 +0800
Subject: [PATCH] chore: add WaitReadFrom support in hyPacketConn

---
 adapter/outbound/hysteria.go | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/adapter/outbound/hysteria.go b/adapter/outbound/hysteria.go
index 6024ea10..2d5b90ac 100644
--- a/adapter/outbound/hysteria.go
+++ b/adapter/outbound/hysteria.go
@@ -318,6 +318,17 @@ func (c *hyPacketConn) ReadFrom(p []byte) (n int, addr net.Addr, err error) {
 	return
 }
 
+func (c *hyPacketConn) WaitReadFrom() (data []byte, put func(), addr net.Addr, err error) {
+	b, addrStr, err := c.UDPConn.ReadFrom()
+	if err != nil {
+		return
+	}
+	data = b
+	put = func() {}
+	addr = M.ParseSocksaddr(addrStr).UDPAddr()
+	return
+}
+
 func (c *hyPacketConn) WriteTo(p []byte, addr net.Addr) (n int, err error) {
 	err = c.UDPConn.WriteTo(p, M.SocksaddrFromNet(addr).String())
 	if err != nil {