func Disconnect(m MQTT.Client) error {
if m.IsConnected() {
m.Disconnect(20)
log.Info("client disconnected")
}
return nil
}
func Publish(m MQTT.Client, topic string, payload []byte, qos int, retain bool, sync bool) error {
token := m.Publish(topic, byte(qos), retain, payload)
log.Info("published: %v, to topic: %v", string(payload), topic)
token.Wait()
return nil
}
func SubscribeOnConnect(client MQTT.Client) {
log.Infof("client connected")
if len(Subscribed) > 0 {
token := client.SubscribeMultiple(Subscribed, OnMessageReceived)
token.Wait()
if token.Error() != nil {
log.Error(token.Error())
}
}
}
func subscribeBackend(c MQTT.Client, topic string) {
if token := c.Subscribe(topic, 0, nil); token.Wait() && token.Error() != nil {
fmt.Println(token.Error())
os.Exit(1)
}
}