package memory import ( "errors" "github.com/micro/go-micro/registry" ) type Watcher struct { id string wo registry.WatchOptions res chan *registry.Result exit chan bool } func (m *Watcher) Next() (*registry.Result, error) { for { select { case r := <-m.res: if len(m.wo.Service) > 0 && m.wo.Service != r.Service.Name { continue } return r, nil case <-m.exit: return nil, errors.New("watcher stopped") } } } func (m *Watcher) Stop() { select { case <-m.exit: return default: close(m.exit) } }