Hi all
There is a singleton .net remoting with lifetime issue and lease
renewal question in c# 2005?
I have created a simple class library with a single class that
inherits MarshalByRefObject and some functions besides
InitializeLifetimeService which is as given below:-


Code:
public override object InitializeLifetimeService()
{
ILease lease = (ILease)base.InitializeLifetimeService();

//Set lease properties
lease.InitialLeaseTime = TimeSpan.FromSeconds(3600);
lease.RenewOnCallTime = TimeSpan.FromSeconds(3);
lease.SponsorshipTimeout = TimeSpan.FromSeconds(10);
return lease;
}

I then compiled this class and then added the .dll to a very simple
asp .net 2.0 website. Inside Global.asax's Application_onStart, I have
written the below given code:-


Code:
BinaryServerFormatterSinkProvider bserver = new
BinaryServerFormatterSinkProvider();
bserver.TypeFilterLevel =
System.Runtime.Serialization.Formatters.TypeFilter Level.Full;
BinaryClientFormatterSinkProvider bClient = new
BinaryClientFormatterSinkProvider(); ;
System.Collections.IDictionary objDict = new
System.Collections.Hashtable();
objDict["port"] = 9993;
//ServChannel is a globally declared object in Global.asax
with type TcpChannel
ServChannel = new TcpChannel(objDict, bClient, bserver);
ChannelServices.RegisterChannel(ServChannel);


RemotingConfiguration.RegisterWellKnownServiceType (typeof(RemoteObj),
"RemoteObj", WellKnownObjectMode.Singleton );



I then created a simple window applicatioin in whose Form_Load, I have
written the below given code:-

Code:

BinaryServerFormatterSinkProvider bserver = new
BinaryServerFormatterSinkProvider();
bserver.TypeFilterLevel =
System.Runtime.Serialization.Formatters.TypeFilter Level.Full;
BinaryClientFormatterSinkProvider bClient = new
BinaryClientFormatterSinkProvider(); ;

TcpChannel ServChannel = new TcpChannel(null, bClient,
bserver);
ChannelServices.RegisterChannel(ServChannel);
objSponsor = new SponsorshipManager();
//objTest is the remoting class's object reference
objTest =
(RemoteObj.RemoteObj)Activator.GetObject(typeof(Re moteObj.RemoteObj),
"tcp://localhost:9993/RemoteObj");


Inside the form_load after above lines of code, I register the
Sponsorship using
objSponsor.Register(objTest);
where objTest is an object of type SponsorshipManager class that
resides in window application and that registers the remote object for
sponsorship its code is:-


Code:
using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.Remoting;
using System.Runtime.Remoting.Channels;
using System.Runtime.Serialization;
using System.Runtime.Remoting.Lifetime;

namespace Host
{
public class SponsorshipManager:MarshalByRefObject,ISponsor
{
TimeSpan ISponsor.Renewal(ILease lease)
{
return lease.InitialLeaseTime;
}
public void Register(MarshalByRefObject obj)
{
try
{
ILease lease =
(ILease)RemotingServices.GetLifetimeService(obj);
if (lease.CurrentState == LeaseState.Active)
{
lease.Register(this);
}
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
}
}
}


My problem is that after specified lease time expires the lease
renewal is not being called?
What's going wrong with this? Any idea?
Thanks
Parvez