Method Close

close.go:99–128

Close performs the WebSocket close handshake with the given status code and reason. It will write a WebSocket close frame with a timeout of 5s and then wait 5s for the peer to send a close frame. All data messages received from the peer during the close handshake will be discarded. The connection

(code StatusCode, reason string)

// Close will unblock all goroutines interacting with the connection once
// complete.
func (c *Conn) Close(code StatusCode, reason string) (err error) {
	defer errd.Wrap(&err, "failed to close WebSocket")

	if c.casClosing() {
		err = c.waitGoroutines()
		if err != nil {
			return err
		}
		return net.ErrClosed
	}
	defer func() {
		if errors.Is(err, net.ErrClosed) {
			err = nil
		}
	}()

	err = c.closeHandshake(code, reason)

	err2 := c.close()
	if err == nil && err2 != nil {
		err = err2
	}

	err2 = c.waitGoroutines()
	if err == nil && err2 != nil {
		err = err2
	}

	return err
}

// CloseNow closes the WebSocket connection without attempting a close handshake.
// Use when you do not want the overhead of the close handshake.