Fan.Sys.LocalFile.mmap C# (CSharp) Method

        public override Buf mmap(string mode, long pos, Long size)
        {
            try
              {
            // map mode
            /*
            MmapBuf.FileRights mode;
            if (mode.val.equals("r"))       { mode = MmapBuff.FileRights.Read; }
            else if (mode.val.equals("rw")) { mode = MmapBuff.FileRights.ReadWrite; }
            else if (mode.val.equals("p")) throw ArgErr.make("Private mode not supported.").val;
            else throw ArgErr.make("Invalid mode: " + mode).val;

            // verify mode is 'r' or 'rw'
            if (mode.val.equals("p")) throw ArgErr.make("Private mode not supported.").val;
            if (!mode.val.equals("r") || !mode.val.equals("rw")) throw ArgErr.make("Invalid mode: " + mode).val;

            // if size is null, use file size
            if (size == null) size = size();

            // traverse the various Java APIs
            //RandomAccessFile fp = new RandomAccessFile(file, rw);
            //FileChannel chan = fp.getChannel();
            //MappedByteBuffer mmap = chan.map(mm, pos.val, size.val);
            */

            return new MmapBuf(this, mode, pos, size);
              }
              catch (System.IO.IOException e)
              {
            throw IOErr.make(e).val;
              }
        }