C# Sandboxer

 public static string IsolateCallV1(PageContentHandler pHandler)

        {

            string name = Guid.NewGuid().ToString("N");

            var domain = AppDomain.CreateDomain(name);

            try

            {

                var proxy = (IAppEntry)domain.CreateInstanceAndUnwrap("AnfleCrawler.Common", "AnfleCrawler.Common.IsolateProxy");

                string ret = (string)proxy.DoEntry(pHandler);

                if (ret == null)

                {

                    throw new InvalidOperationException("IsolateProxy");

                }

                return ret;

            }

            finally

            {

                //AppDomain不能即时卸载？不能在IDisposable中卸载？

                //App.LogInfo("IsolateCollect Unload {0}@{1}", domain.FriendlyName, AppDomain.CurrentDomain.FriendlyName);

                //AppDomain.Unload(domain);

                new JobTimer(state =>

                {

                    try

                    {

                        var d = (AppDomain)state;

                        //if (d.IsFinalizingForUnload())

                        //{

                        //    return;

                        //}

                        App.LogInfo("IsolateCollect Unload {0}", d.FriendlyName);

                        AppDomain.Unload(d);

                    }

                    catch (Exception ex)

                    {

                        App.LogError(ex, "IsolateCollect");

                    }

                }, DateTime.Now.AddSeconds(20d)).Start(domain);

            }

        }