func()

in proxy/protocol/grpc/client.go [86:124]

• 36 lines of code
• 8 McCabe index (conditional complexity)

func (c *Client) Call(ctx context.Context, addr string, inv *invocation.Invocation, rsp interface{}) error {
	var err error
	reqSend, err := httputil.HTTPRequest(inv)
	if err != nil {
		return err
	}
	resp, ok := rsp.(*http.Response)
	if !ok {
		return ErrInvalidResp
	}

	ctx, cancel := context.WithCancel(ctx)
	defer cancel()
	if c.opts.TLSConfig != nil {
		reqSend.URL.Scheme = SchemaHTTPS
	} else {
		reqSend.URL.Scheme = SchemaHTTP
	}
	if addr != "" {
		reqSend.URL.Host = addr
	}

	var temp *http.Response
	errChan := make(chan error, 1)
	go func() {
		temp, err = c.c.Do(reqSend)
		errChan <- err
	}()

	select {
	case <-ctx.Done():
		err = ErrCanceled
	case err = <-errChan:
		if err == nil {
			*resp = *temp
		}
	}
	return err
}