mihomo/common/net/packet/ref.go
2023-05-20 16:57:42 +08:00

75 lines
1.6 KiB
Go

package packet
import (
"net"
"runtime"
"time"
)
type refPacketConn struct {
pc EnhancePacketConn
ref any
}
func (c *refPacketConn) WaitReadFrom() (data []byte, put func(), addr net.Addr, err error) {
defer runtime.KeepAlive(c.ref)
return c.pc.WaitReadFrom()
}
func (c *refPacketConn) ReadFrom(p []byte) (n int, addr net.Addr, err error) {
defer runtime.KeepAlive(c.ref)
return c.pc.ReadFrom(p)
}
func (c *refPacketConn) WriteTo(p []byte, addr net.Addr) (n int, err error) {
defer runtime.KeepAlive(c.ref)
return c.pc.WriteTo(p, addr)
}
func (c *refPacketConn) Close() error {
defer runtime.KeepAlive(c.ref)
return c.pc.Close()
}
func (c *refPacketConn) LocalAddr() net.Addr {
defer runtime.KeepAlive(c.ref)
return c.pc.LocalAddr()
}
func (c *refPacketConn) SetDeadline(t time.Time) error {
defer runtime.KeepAlive(c.ref)
return c.pc.SetDeadline(t)
}
func (c *refPacketConn) SetReadDeadline(t time.Time) error {
defer runtime.KeepAlive(c.ref)
return c.pc.SetReadDeadline(t)
}
func (c *refPacketConn) SetWriteDeadline(t time.Time) error {
defer runtime.KeepAlive(c.ref)
return c.pc.SetWriteDeadline(t)
}
func (c *refPacketConn) Upstream() any {
return c.pc
}
func (c *refPacketConn) ReaderReplaceable() bool { // Relay() will handle reference
return true
}
func (c *refPacketConn) WriterReplaceable() bool { // Relay() will handle reference
return true
}
func NewRefPacketConn(pc net.PacketConn, ref any) EnhancePacketConn {
rPC := &refPacketConn{pc: NewEnhancePacketConn(pc), ref: ref}
if singPC, isSingPC := pc.(SingPacketConn); isSingPC {
return &refSingPacketConn{
refPacketConn: rPC,
singPacketConn: singPC,
}
}
return rPC
}