哪位帮我解释一下下面这个方法的意思啊？

[狼王_]

/// <summary>
        /// 根据酒店ID查询酒店价格
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        public static void getHotelPriceByHotelID(object rtBox)
        {
            RichTextBox rtb = rtBox as RichTextBox;

            string[] serverlist = { ConfigurationManager.AppSettings["serverlist"].ToString() };

            //初始化池
            SockIOPool pool = SockIOPool.GetInstance();
            pool.SetServers(serverlist);


            pool.InitConnections = 3;
            pool.MinConnections = 3;
            pool.MaxConnections = 30;

            pool.SocketConnectTimeout = 1000;
            pool.SocketTimeout = 3000;

            pool.MaintenanceSleep = 30;
            pool.Failover = true;

            pool.Nagle = false;
            pool.Initialize();

            log.Info("根据酒店ID查询酒店价格,初始化池成功！");

            Stopwatch sp = new Stopwatch();
            sp.Start();

            List<Manager.hotel_HotelLinkRelation> relList;
            using (HotelDataContext hotelData = new HotelDataContext())
            {
                 relList = Manager.HotelManager.GetHotelLinkRelation();
            }
            log.Info("根据酒店ID查询酒店价格,酒店信息读取成功！");
            string strTaken = GDSDataAccess.GDSDataAccessElong.GetTaken();
            //实例化memcached客户端
            MemcachedClient mc = new MemcachedClient();
            mc.EnableCompression = true;

            for (int i = 0; i < relList.Count; i++)
            {
                ReturnClass rc = new ReturnClass();
                try
                {
                    GetHotelListResponse HotelList = GDSDataAccess.GDSDataAccessElong.GetHotelList(strTaken, relList[i].ExHotelCode);

                    rc = Manager.ELongManager.ELongDataDeal(HotelList);
                }
                catch
                {
                    rc.Code = -1;
                }

                if (rc.Code != 0)
                {
                    rtb.Text += relList[i].ExHotelCode;
                }
            }
            log.Info("根据酒店ID查询酒店价格,更新成功！");
            sp.Stop();
            Console.WriteLine(sp.ElapsedMilliseconds);

            SockIOPool.GetInstance().Shutdown();  //关闭池， 关闭sockets
            log.Info("根据酒店ID查询酒店价格,关闭池， 关闭sockets成功！");
        }

这个方法里面的SockIOPool是什么啊？有什么作用啊？好像只有声明，没有调用啊。哪位大神帮忙解释一下啊。。。。。

[cf_nxcxy]

SockIOPool是对外服务的类