code: func (l *DefaultListener) listenRoutine() {
  	for {
  		conn, err := l.listener.Accept()
  
  		if !l.IsRunning() {
  			break // Go to cleanup
  		}
  
  		// listener wasn't stopped,
  		// yet we encountered an error.
  		if err != nil {
  			PanicCrisis(err)
  		}
  
  		l.connections <- conn
  	}
  
  	// Cleanup
  	close(l.connections)
  	for _ = range l.connections {
  		// Drain
  	}
  }
docs: // Accept connections and pass on the channel