gistfile1.lua

      local pipe = FS.create_read_stream(file.name, {
        offset = start,
        length = stop - start + 1,
      })
      pipe:on('data', function(chunk, len)
        if cache_it then
          parts[index] = chunk
          index = index + 1
        end
        res:safe_write(chunk)
      end)
      pipe:on('end', function()
        res:close()
        if cache_it then
NUM2 = NUM2 + 1
d("cached", NUM2, {path=filename, headers=file.headers})
          file.data = Table.concat(parts, '')
          parts = nil
        end
      end)
      pipe:on('error', function(err)
        res:close()
        parts = nil
NUM3 = NUM3 + 1
d("errored", NUM3, {path=filename, err=err})
      end)