func (gw *Gateway) ListenAll(maddrs [][]byte) error {
retErr := multierr.New()
addErr := func(err error) {
if retErr.Errors == nil {
retErr.Errors = make([]error, 0)
}
retErr.Errors = append(retErr.Errors, err)
}
// listen on every address
for _, bts := range maddrs {
m, err := ma.NewMultiaddrBytes(bts)
if err != nil {
addErr(err)
continue
}
err = gw.listen(m)
if err != nil {
addErr(err)
}
}
if retErr.Errors != nil {
return retErr
}
return nil
}
// Open listeners for each network the swarm should listen on
func (s *Swarm) listen(addrs []ma.Multiaddr) error {
for _, addr := range addrs {
if !addrutil.AddrUsable(addr, true) {
return fmt.Errorf("cannot use addr: %s", addr)
}
}
retErr := multierr.New()
// listen on every address
for i, addr := range addrs {
err := s.setupListener(addr)
if err != nil {
if retErr.Errors == nil {
retErr.Errors = make([]error, len(addrs))
}
retErr.Errors[i] = err
log.Debugf("Failed to listen on: %s - %s", addr, err)
}
}
if retErr.Errors != nil {
return retErr
}
return nil
}