mirror of
https://github.com/SagerNet/sing-box.git
synced 2024-11-14 04:43:17 +00:00
50 lines
1 KiB
Go
50 lines
1 KiB
Go
package canceler
|
|
|
|
import (
|
|
"context"
|
|
"time"
|
|
|
|
"github.com/sagernet/sing/common"
|
|
"github.com/sagernet/sing/common/buf"
|
|
M "github.com/sagernet/sing/common/metadata"
|
|
N "github.com/sagernet/sing/common/network"
|
|
)
|
|
|
|
type PacketConn struct {
|
|
N.PacketConn
|
|
instance *Instance
|
|
}
|
|
|
|
func NewPacketConn(ctx context.Context, conn N.PacketConn, timeout time.Duration) (context.Context, N.PacketConn) {
|
|
ctx, cancel := context.WithCancel(ctx)
|
|
instance := New(ctx, cancel, timeout)
|
|
return ctx, &PacketConn{conn, instance}
|
|
}
|
|
|
|
func (c *PacketConn) ReadPacket(buffer *buf.Buffer) (destination M.Socksaddr, err error) {
|
|
destination, err = c.PacketConn.ReadPacket(buffer)
|
|
if err == nil {
|
|
c.instance.Update()
|
|
}
|
|
return
|
|
}
|
|
|
|
func (c *PacketConn) WritePacket(buffer *buf.Buffer, destination M.Socksaddr) error {
|
|
err := c.PacketConn.WritePacket(buffer, destination)
|
|
if err == nil {
|
|
c.instance.Update()
|
|
}
|
|
return err
|
|
}
|
|
|
|
func (c *PacketConn) Close() error {
|
|
return common.Close(
|
|
c.PacketConn,
|
|
c.instance,
|
|
)
|
|
}
|
|
|
|
func (c *PacketConn) Upstream() any {
|
|
return c.PacketConn
|
|
}
|