subnets.py 文件源码

def _pool_is_growing(original_pool, new_pool):
    # create IPSet for original pool
    ori_set = netaddr.IPSet()
    for rng in original_pool._alloc_pools:
        ori_set.add(netaddr.IPRange(rng['start'], rng['end']))

    # create IPSet for net pool
    new_set = netaddr.IPSet()
    for rng in new_pool._alloc_pools:
        new_set.add(netaddr.IPRange(rng['start'], rng['end']))

    # we are growing the original set is not a superset of the new set
    return not ori_set.issuperset(new_set)