func newServer() (*server, error) {
var s server
s.data = make(map[string][]byte)
s.fwd = make(map[string]chan<- readerDone)
hs := http.Server{
Addr: ":0",
Handler: http.HandlerFunc(s.httpHandler),
}
ln, err := net.Listen("tcp", ":0")
if err != nil {
return nil, err
}
var h httpdown.HTTP
s.s = h.Serve(&hs, ln)
s.port = ln.Addr().(*net.TCPAddr).Port
return &s, nil
}
