- for locator, blocksize, segmentoffset, segmentsize in locators_and_ranges(self.segments, self._filepos, size):
- data += self._stream.readfrom(locator+segmentoffset, segmentsize)
+ available_chunks = locators_and_ranges(self.segments, self._filepos, size)
+ if available_chunks:
+ locator, blocksize, segmentoffset, segmentsize = available_chunks[0]
+ data = self._stream.readfrom(locator+segmentoffset, segmentsize)
+