Method clone_range

src/test/common/ObjectContents.cc:76–108

}

void ObjectContents::clone_range(ObjectContents &other,
				 interval_set<uint64_t> &intervals)
{
  interval_set<uint64_t> written_to_clone;
  written_to_clone.intersection_of(intervals, other.written);

  interval_set<uint64_t> zeroed = intervals;
  zeroed.subtract(written_to_clone);

  written.union_of(intervals);
  written.subtract(zeroed);

  for (interval_set<uint64_t>::iterator i = written_to_clone.begin();
       i != written_to_clone.end();
       ++i) {
    uint64_t start = i.get_start();
    uint64_t len = i.get_len();

    unsigned int seed = get_iterator().get_state(start+len);

    seeds[start+len] = seed;
    seeds.erase(seeds.lower_bound(start), seeds.lower_bound(start+len));

    seeds[start] = other.get_iterator().get_state(start);
    seeds.insert(other.seeds.upper_bound(start),
		 other.seeds.lower_bound(start+len));
  }

  if (intervals.range_end() > _size)
    _size = intervals.range_end();
  _exists = true;
  return;
}

void ObjectContents::write(unsigned int seed,
			   uint64_t start,