Method exportedClose

ws_js.go:248–272

(code StatusCode, reason string)

}

func (c *Conn) exportedClose(code StatusCode, reason string) error {
	c.closingMu.Lock()
	defer c.closingMu.Unlock()

	if c.isClosed() {
		return net.ErrClosed
	}

	ce := fmt.Errorf("sent close: %w", CloseError{
		Code:   code,
		Reason: reason,
	})

	c.setCloseErr(ce)
	err := c.ws.Close(int(code), reason)
	if err != nil {
		return err
	}

	<-c.closed
	if !c.closeWasClean {
		return c.closeErr
	}
	return nil
}

// Subprotocol returns the negotiated subprotocol.
// An empty string means the default protocol.