package gobot import ( "encoding/json" "github.com/tarm/goserial" "io" "math/rand" "net" "reflect" "regexp" "time" ) type Port io.ReadWriteCloser func Every(t string, f func()) { dur := parseDuration(t) go func() { for { time.Sleep(dur) go f() } }() } func After(t string, f func()) { dur := parseDuration(t) go func() { time.Sleep(dur) f() }() } func Publish(c chan interface{}, val interface{}) { select { case c <- val: default: } } func On(c chan interface{}, f func(s interface{})) { go func() { for s := range c { f(s) } }() } func parseDuration(t string) time.Duration { dur, err := time.ParseDuration(t) if err != nil { panic(err) } return dur } func Rand(max int) int { rand.Seed(time.Now().UTC().UnixNano()) return rand.Intn(max) } func ConnectToTcp(port string) io.ReadWriteCloser { tcpPort, err := net.Dial("tcp", port) if err != nil { panic(err) } return tcpPort } func ConnectToSerial(port string, baud int) io.ReadWriteCloser { c := &serial.Config{Name: port, Baud: baud} s, err := serial.OpenPort(c) if err != nil { panic(err) } return s } func IsUrl(url string) bool { rp := regexp.MustCompile("([^A-Za-z0-9]+).([^A-Za-z0-9]+).([^A-Za-z0-9]+)") return rp.MatchString(url) } func Call(thing interface{}, method string, params ...interface{}) []reflect.Value { in := make([]reflect.Value, len(params)) for k, param := range params { in[k] = reflect.ValueOf(param) } return reflect.ValueOf(thing).MethodByName(method).Call(in) } func FieldByName(thing interface{}, field string) reflect.Value { return reflect.ValueOf(thing).FieldByName(field) } func FieldByNamePtr(thing interface{}, field string) reflect.Value { return reflect.ValueOf(thing).Elem().FieldByName(field) } func toJson(obj interface{}) string { b, _ := json.Marshal(obj) return string(b) }