torrent/dialer.go

46 lines
1.0 KiB
Go

package torrent
import (
"context"
"net"
"github.com/anacrolix/missinggo/perf"
)
type Dialer interface {
// The network is implied by the instance.
Dial(_ context.Context, addr string) (net.Conn, error)
// This is required for registering with the connection tracker (router connection table
// emulating rate-limiter) before dialing. TODO: What about connections that wouldn't infringe
// on routers, like localhost or unix sockets.
LocalAddr() net.Addr
}
type NetDialer struct {
Network string
Dialer net.Dialer
}
func (me NetDialer) Dial(ctx context.Context, addr string) (_ net.Conn, err error) {
defer perf.ScopeTimerErr(&err)()
return me.Dialer.DialContext(ctx, me.Network, addr)
}
func (me NetDialer) LocalAddr() net.Addr {
return netDialerLocalAddr{me.Network, me.Dialer.LocalAddr}
}
type netDialerLocalAddr struct {
network string
addr net.Addr
}
func (me netDialerLocalAddr) Network() string { return me.network }
func (me netDialerLocalAddr) String() string {
if me.addr == nil {
return ""
}
return me.addr.String()
}