static gboolean
g_tls_output_stream_gnutls_pollable_is_writable (GPollableOutputStream *pollable)
{
  GTlsOutputStreamGnutls *tls_stream = G_TLS_OUTPUT_STREAM_GNUTLS (pollable);

  g_return_val_if_fail (tls_stream->priv->conn != NULL, FALSE);

  return g_tls_connection_gnutls_check (tls_stream->priv->conn, G_IO_OUT); 
}
static gboolean
g_tls_input_stream_gnutls_pollable_is_readable (GPollableInputStream * pollable)
{
  KmsGTlsInputStreamGnutls *tls_stream =
      G_KMS_TLS_INPUT_STREAM_GNUTLS (pollable);

  g_return_val_if_fail (tls_stream->priv->conn != NULL, FALSE);

  return g_tls_connection_gnutls_check (tls_stream->priv->conn, G_IO_IN);
}