func sigHandler() *chanpubsub.ChanPubSub {
termChan := make(chan os.Signal, 1)
signal.Notify(termChan, syscall.SIGINT, syscall.SIGTERM, syscall.SIGHUP)
ps := chanpubsub.New()
go func() {
ps.Pub(<-termChan)
return
}()
return ps
}
func (s *SerialPort) Open() (err error) {
if s.opened {
return nil
}
s.port, err = serial.OpenPort(&s.Config)
if err != nil {
return err
}
if s.ChanPubSub == nil {
s.ChanPubSub = chanpubsub.New()
}
go s.reader()
if s.Write == nil {
s.Write = s.writer()
}
s.opened = true
return nil
}