System.Net.HttpListenerResponse.NonBlockingCloseCallback C# (CSharp) Method

        private void NonBlockingCloseCallback(IAsyncResult asyncResult)
        {
            try
            {
                _responseStream.EndWrite(asyncResult);
            }
            catch (Win32Exception)
            {
            }
            finally
            {
                _responseStream.Close();
                HttpListenerContext.Close();
                _responseState = ResponseState.Closed;
            }
        }