clr via c# clr寄宿和AppDomain (一)

namespace ClrFromCSharp_2_2.LearnAppDomain
{
   public class AppDomainRef
    {
        public static void Marshalling()
        {
            AppDomain adCallingTreadDomain = Thread.GetDomain();//获取当前线程运行的域
            string callingDomainName = adCallingTreadDomain.FriendlyName;
            Console.WriteLine("Default AppDomain‘s friendly name={0}", callingDomainName);
            //获取并显示我们的AppDomain中包含了Main方法的程序集
            string exeAssembly = Assembly.GetEntryAssembly().FullName;
            Console.WriteLine("Main assembly={0}", exeAssembly);
            //定义局部变量来引用一个AppDomain
            AppDomain ad2 = null;
            Console.WriteLine("\n Demo #1");
            ad2 = AppDomain.CreateDomain("AD #2", null, null);
            MarshalByRefType mbrt = null;
            mbrt = (MarshalByRefType)ad2.CreateInstanceAndUnwrap(exeAssembly, "ClrFromCSharp_2_2.LearnAppDomain.MarshalByRefType");//利用AppDomain和程序集创建对象.
            Console.WriteLine("Type={0}", mbrt.GetType());
            Console.WriteLine("Is proxy={0}", RemotingServices.IsTransparentProxy(mbrt));//
            //看起来我们像在MarshalByRefType上面调用一个方法,实则不然,我们在代理类型上调用一个方法,代理使线程切换到拥有对象的那个AppDomain,并在真实对象上调用
            //真实的方法.
            mbrt.SomeMethod();
            //卸载 AppDomain
            AppDomain.Unload(ad2);
            //mbrt 引用一个有效的代理对象,代理对象引用一个无效的AppDomain
            try
            {
                mbrt.SomeMethod();
                Console.WriteLine("Successful");

            }
            catch (AppDomainUnloadedException)
            {
                Console.WriteLine("Failed Call.");
            }
            //---Demo2---使用MarshalByValue进行跨AppDomain通信
            Console.WriteLine("\n Demo #2");
            ad2 = AppDomain.CreateDomain("AD #2", null, null);
            mbrt = (MarshalByRefType)ad2.CreateInstanceAndUnwrap(exeAssembly, "ClrFromCSharp_2_2.LearnAppDomain.MarshalByRefType");//利用AppDomain和程序集创建对象.
            MarshalByValType mbvt = mbrt.MethodWithReturn();
            Console.WriteLine("Is proxy={0}", RemotingServices.IsTransparentProxy(mbvt));//证明得到的不是一个代理对象的引用
            Console.WriteLine("Returned object created" + mbvt.ToString());
            //卸载新的AppDomain
            AppDomain.Unload(ad2);
            //mbvt引用有效的对象:卸载AppDomain没用影响
            try
            {
                Console.WriteLine("Returned object created" + mbvt.ToString());
                Console.WriteLine("Successful");
            }
            catch (AppDomainUnloadedException)
            {
                Console.WriteLine("Failed Call.");
            }
            //Demo3 :使用不可封送的对象,抛出异常
            mbrt = (MarshalByRefType)ad2.CreateInstanceAndUnwrap(exeAssembly, "ClrFromCSharp_2_2.LearnAppDomain.MarshalByRefType");//利用AppDomain和程序集创建对象.
            NonMarshalableType nmt = mbrt.MethodArgAndReturn("abc");
            //这里永远执行不到...
        }
    }
    public sealed class MarshalByRefType : MarshalByRefObject
    {
        public MarshalByRefType()
        {
            Console.WriteLine("{0} ctor running in {1}", this, GetType().ToString(), Thread.GetDomain().FriendlyName);

        }
        public void SomeMethod()
        {
            Console.WriteLine("Executing in" + Thread.GetDomain().FriendlyName);
        }
        public MarshalByValType MethodWithReturn()
        {
            Console.WriteLine("Executing in" + Thread.GetDomain().FriendlyName);
            return new MarshalByValType();
        }
        public NonMarshalableType MethodArgAndReturn(string name)
        {
            Console.WriteLine("calling from {0} to {1}", name, Thread.GetDomain().FriendlyName);
            return new NonMarshalableType();
        }
    }
    [Serializable]
    public sealed class MarshalByValType : Object
    {
        private DateTime m_creationTime = DateTime.Now;

        public MarshalByValType()
        {
            Console.WriteLine("{0} ctor running in {1},Created On {2:D}", this.GetType().ToString(), Thread.GetDomain().FriendlyName, m_creationTime);
        }
        public override string ToString()
        {
            return m_creationTime.ToLongDateString();
        }
    }
    [Serializable]
    public sealed class NonMarshalableType : Object
    {
        public NonMarshalableType()
        {
            Console.WriteLine("Executing in" + Thread.GetDomain().FriendlyName);
        }
    }

}

Default AppDomain‘s friendly name=ClrFromCSharp_2_2.exe
Main assembly=ClrFromCSharp_2_2, Version=1.0.0.0, Culture=neutral, PublicKeyToken=11fccde6e91ad1e9

 Demo #1
ClrFromCSharp_2_2.LearnAppDomain.MarshalByRefType ctor running in ClrFromCSharp_2_2.LearnAppDomain.MarshalByRefType
Type=ClrFromCSharp_2_2.LearnAppDomain.MarshalByRefType
Is proxy=True
Executing inAD #2
Failed Call.

 Demo #2
ClrFromCSharp_2_2.LearnAppDomain.MarshalByRefType ctor running in ClrFromCSharp_2_2.LearnAppDomain.MarshalByRefType
Executing inAD #2
ClrFromCSharp_2_2.LearnAppDomain.MarshalByValType ctor running in AD #2,Created On 2020年2月13日
Is proxy=False
Returned object created2020年2月13日
Returned object created2020年2月13日
Successful

mbrt = (MarshalByRefType)ad2.CreateInstanceAndUnwrap(typeof(MarshalByRefType).Assembly.FullName, typeof(MarshalByRefType).FullName);//利用AppDomain和程序集创建对象.

public class MyClass : MarshalByRefObject
{
  [SecurityPermissionAttribute(SecurityAction.Demand,
                               Flags=SecurityPermissionFlag.Infrastructure)]
  public override Object InitializeLifetimeService()
  {
    ILease lease = (ILease)base.InitializeLifetimeService();
    if (lease.CurrentState == LeaseState.Initial)
    {
         lease.InitialLeaseTime = TimeSpan.FromMinutes(1);
         lease.SponsorshipTimeout = TimeSpan.FromMinutes(2);
          lease.RenewOnCallTime = TimeSpan.FromSeconds(2);
    }
      return lease;
  }
}

using(new AppDomainMonitorDelta(null))
            {
                var list = new List<object>();
                for (var x = 0; x < 2000; x++) { list.Add(new byte[10000]); }
                for (var x = 0; x < 2000; x++) { new Byte[10000].GetType(); }
                Int64 stop = Environment.TickCount + 5000;
                while (Environment.TickCount < stop) ;
            }

public static void CallFirstChance()
        {
            Thread.GetDomain().FirstChanceException += FirstChangeHandler;//当当前appdomain发生第一次异常的时候,调用回调函数.
            AppDomain ad = AppDomain.CreateDomain("AD0");//创建新的app domain---ad;
            TestAppDomainFirstChanceNotify t = (TestAppDomainFirstChanceNotify)ad.CreateInstanceAndUnwrap(typeof(TestAppDomainFirstChanceNotify).Assembly.FullName, typeof(TestAppDomainFirstChanceNotify).FullName);
            try//创建代理对象
            {
                t.PullException("pull exception");//代理对象调用异常方法.
            }
            catch(Exception e)
            {
                Console.WriteLine("exception happened at {0}", Thread.GetDomain().FriendlyName);
            }



        }