private async Task ProcessSendFatalAlert(Alert alert, CancellationToken token)
        {
            this.logger?.Warn("Processing fatal alert...");
            try
            {
                // Create and encrypt the alert record
                Record record = new Record(RecordType.Alert, this._handshakeSession.NegotiatedVersion, alert.GetBytes());
                this._recordHandler.ProcessOutputRecord(record);

                // Attempt sending the alert record
                await this._recordStream.SendAsync(new Record[] { record }, token);
            }
            catch (Exception ex)
            {
                this.logger?.Error("Processing fatal alert failed: {0}", ex.Message);
            }
            finally
            {
                if (this._recordStream != null)
                {
                    this.logger?.Info("Closing record stream...");
                    this._recordStream.Flush();
                    this._recordStream.Close();
                }
            }
        }
 private void ProcessAlertRecord(Record record)
 {
     // TODO: Received an alert, handle correctly
     Alert alert = new Alert(record.Fragment);
     this.logger?.Debug("Received an alert: " + alert.Description);
     if (alert.Level == AlertLevel.Fatal)
     {
         // Fatal alerts don't need close notify
         _recordStream.Close();
         throw new Exception("Received a fatal alert");
     }
 }