func()

in dialer.go [642:656]

• 14 lines of code
• 3 McCabe index (conditional complexity)

func (d *Dialer) Close() error {
	// Check if Close has already been called.
	select {
	case <-d.closed:
		return nil
	default:
	}
	close(d.closed)
	d.lock.Lock()
	defer d.lock.Unlock()
	for _, i := range d.cache {
		i.Close()
	}
	return nil
}