Beagrep.Daemon.Filter.Close C# (CSharp) Method

        private void Close()
        {
            if (closed)
                return;

            Cleanup ();

            DoClose ();

            if (currentReader != null)
                currentReader.Close ();

            if (currentStream != null) {
                // When crawling, give the OS a hint that we don't
                // need to keep this file around in the page cache.
                if (indexable.FlushBufferCache && currentStream is FileStream)
                    FileAdvise.FlushCache ((FileStream) currentStream);

                currentStream.Close ();
                currentStream = null;
            }

            if (snippetWriter != null)
                snippetWriter.Close ();

            closed = true;
        }