// Request works like send, but waits for resposne to requestId before returning
func (s *Subscription) Request(payload responses.Payload) (*api.CastMessage, error) {
requestId := int(atomic.AddInt64(&s.requestId, 1))
payload.SetRequestId(requestId)
response := make(chan *api.CastMessage)
s.inFlight[requestId] = response
//err := s.Send(payload)
err := s.Device.Send(s.Urn, s.SourceId, s.DestinationId, payload)
if err != nil {
delete(s.inFlight, requestId)
return nil, err
}
select {
case reply := <-response:
return reply, nil
case <-time.After(time.Second * 10):
delete(s.inFlight, requestId)
return nil, fmt.Errorf("Timeout sending: %s", spew.Sdump(payload))
}
}
func (s *Subscription) Send(payload responses.Payload) error {
requestId := int(atomic.AddInt64(&s.requestId, 1))
payload.SetRequestId(requestId)
return s.Device.Send(s.Urn, s.SourceId, s.DestinationId, payload)
}