func (s *streamSession) createPipe() (Receiver, Sender) {
r, w := io.Pipe()
s.pipeLock.Lock()
pipeID := s.pipeCount + 1
s.pipeCount = pipeID
s.pipeReaders[pipeID] = r
s.pipeWriters[pipeID] = w
s.pipeLock.Unlock()
recv := &pipeReceiver{pipeID, s, r, codec.NewDecoder(r, s.handler)}
send := &pipeSender{pipeID, s, w, codec.NewEncoder(w, s.handler)}
return recv, send
}
func (s *streamSession) decodeSender(v reflect.Value, b []byte) error {
pipeID, readN := binary.Uvarint(b)
if readN == 0 {
return errors.New("bad reference id")
}
w, ok := s.pipeWriters[pipeID]
if !ok {
return errors.New("receiver does not exist")
}
v.Set(reflect.ValueOf(pipeSender{pipeID, s, w, codec.NewEncoder(w, s.handler)}))
return nil
}