Method increment

plugins/experimental/block_errors/block_errors.cc:107–120

  IPTable() = default;

  uint32_t
  increment(swoc::IPAddr const &ip)
  {
    std::unique_lock lock(_mutex);
    auto             item = _table.find(ip);
    if (item == _table.end()) {
      _table.insert(std::make_pair(ip, IPTableItem()));
      return 1;
    } else {
      ++item->second._count;
      uint32_t tmp_count = item->second._count;
      return tmp_count;
    }
  }

  uint32_t
  getCount(swoc::IPAddr const &ip)