/
utp_util.go
105 lines (82 loc) · 1.75 KB
/
utp_util.go
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package utp
import (
"errors"
"net"
"time"
utp "github.com/ipfs/go-ipfs/Godeps/_workspace/src/github.com/anacrolix/utp"
)
type Listener struct {
*utp.Socket
}
type Conn struct {
net.Conn
}
type Addr struct {
net string
child net.Addr
}
func (ca *Addr) Network() string {
return ca.net
}
func (ca *Addr) String() string {
return ca.child.String()
}
func (ca *Addr) Child() net.Addr {
return ca.child
}
func MakeAddr(a net.Addr) net.Addr {
return &Addr{
net: "utp",
child: a,
}
}
func ResolveAddr(network string, host string) (net.Addr, error) {
a, err := net.ResolveUDPAddr("udp"+network[3:], host)
if err != nil {
return nil, err
}
return MakeAddr(a), nil
}
func (u *Conn) LocalAddr() net.Addr {
return MakeAddr(u.Conn.LocalAddr())
}
func (u *Conn) RemoteAddr() net.Addr {
return MakeAddr(u.Conn.RemoteAddr())
}
func Listen(network string, laddr string) (net.Listener, error) {
switch network {
case "utp", "utp4", "utp6":
s, err := utp.NewSocket("udp"+network[3:], laddr)
if err != nil {
return nil, err
}
return &Listener{s}, nil
default:
return nil, errors.New("unrecognized network: " + network)
}
}
func (u *Listener) Accept() (net.Conn, error) {
c, err := u.Socket.Accept()
if err != nil {
return nil, err
}
return &Conn{c}, nil
}
func (u *Listener) Addr() net.Addr {
return MakeAddr(u.Socket.Addr())
}
type Dialer struct {
Timeout time.Duration
LocalAddr net.Addr
}
func (d *Dialer) Dial(rnet string, raddr string) (net.Conn, error) {
if d.LocalAddr != nil {
s, err := utp.NewSocket(d.LocalAddr.Network(), d.LocalAddr.String())
if err != nil {
return nil, err
}
// zero timeout is the same as calling s.Dial()
return s.DialTimeout(raddr, d.Timeout)
}
return utp.DialTimeout(raddr, d.Timeout)
}