fix: remove cyclic dependent to make tuic's Finalizer work

common/net/refconn.go

@@ -0,0 +1,100 @@
+package net
+
+import (
+	"net"
+	"runtime"
+	"time"
+)
+
+type refConn struct {
+	conn net.Conn
+	ref  any
+}
+
+func (c *refConn) Read(b []byte) (n int, err error) {
+	defer runtime.KeepAlive(c.ref)
+	return c.conn.Read(b)
+}
+
+func (c *refConn) Write(b []byte) (n int, err error) {
+	defer runtime.KeepAlive(c.ref)
+	return c.conn.Write(b)
+}
+
+func (c *refConn) Close() error {
+	defer runtime.KeepAlive(c.ref)
+	return c.conn.Close()
+}
+
+func (c *refConn) LocalAddr() net.Addr {
+	defer runtime.KeepAlive(c.ref)
+	return c.conn.LocalAddr()
+}
+
+func (c *refConn) RemoteAddr() net.Addr {
+	defer runtime.KeepAlive(c.ref)
+	return c.conn.RemoteAddr()
+}
+
+func (c *refConn) SetDeadline(t time.Time) error {
+	defer runtime.KeepAlive(c.ref)
+	return c.conn.SetDeadline(t)
+}
+
+func (c *refConn) SetReadDeadline(t time.Time) error {
+	defer runtime.KeepAlive(c.ref)
+	return c.conn.SetReadDeadline(t)
+}
+
+func (c *refConn) SetWriteDeadline(t time.Time) error {
+	defer runtime.KeepAlive(c.ref)
+	return c.conn.SetWriteDeadline(t)
+}
+
+func NewRefConn(conn net.Conn, ref any) net.Conn {
+	return &refConn{conn: conn, ref: ref}
+}
+
+type refPacketConn struct {
+	pc  net.PacketConn
+	ref any
+}
+
+func (pc *refPacketConn) ReadFrom(p []byte) (n int, addr net.Addr, err error) {
+	defer runtime.KeepAlive(pc.ref)
+	return pc.pc.ReadFrom(p)
+}
+
+func (pc *refPacketConn) WriteTo(p []byte, addr net.Addr) (n int, err error) {
+	defer runtime.KeepAlive(pc.ref)
+	return pc.pc.WriteTo(p, addr)
+}
+
+func (pc *refPacketConn) Close() error {
+	defer runtime.KeepAlive(pc.ref)
+	return pc.pc.Close()
+}
+
+func (pc *refPacketConn) LocalAddr() net.Addr {
+	defer runtime.KeepAlive(pc.ref)
+	return pc.pc.LocalAddr()
+}
+
+func (pc *refPacketConn) SetDeadline(t time.Time) error {
+	defer runtime.KeepAlive(pc.ref)
+	return pc.pc.SetDeadline(t)
+}
+
+func (pc *refPacketConn) SetReadDeadline(t time.Time) error {
+	defer runtime.KeepAlive(pc.ref)
+	return pc.pc.SetReadDeadline(t)
+}
+
+func (pc *refPacketConn) SetWriteDeadline(t time.Time) error {
+	defer runtime.KeepAlive(pc.ref)
+	return pc.pc.SetWriteDeadline(t)
+}
+
+func NewRefPacketConn(pc net.PacketConn, ref any) net.PacketConn {
+	return &refPacketConn{pc: pc, ref: ref}
+}