[Mono-list] mono and .net remoting again

[mirek]

hello

few days ago i wrote about my problem with .net remoting in mono. one of 
the advice was to report a bug, but it seems, it's not a bug. so. i'll 
try to describe the problem.

i am trying to create an application, that will have server side and it 
will communicate with other nodes in the network in a created thread, 
that will be running in each 10 seconds. so - the main application has 
one thread for client communication. the problem is with the calling of 
the remote objects from the thread - nothing happend (when i use timer) 
and exception rise (when i create normal thread).

the code is as follows:

the remote object - class Test:

using System;

namespace remoting
{
   
   
    public class Test : MarshalByRefObject
    {
       
        public Test()
        {
        }
       
        public string Hello()
        {
           return( "hello cikos" );
        }
       
    }
}

the server code:

using System;
using System.Runtime.Remoting;
using System.Runtime.Remoting.Channels;
using System.Runtime.Remoting.Channels.Tcp;

namespace remoting
{
    class MainClass
    {
        public static void Main(string[] args)
        {
           TcpChannel chan = new TcpChannel( 11111 );
           ChannelServices.RegisterChannel( chan );
          
           RemotingConfiguration.RegisterWellKnownServiceType(
            typeof(Test),
            "Test",
            WellKnownObjectMode.SingleCall );
         
         System.Console.WriteLine( "Press the enter key to exit RO 
Test..." );
          System.Console.ReadLine();
        }
    }
}

and the client code:

using System;
using System.Runtime.Remoting;
using System.Runtime.Remoting.Channels;
using System.Runtime.Remoting.Channels.Tcp;

namespace remoting
{
    class MainClass
    {
        public static void Main(string[] args)
        {
           TcpChannel chan = new TcpChannel();
           ChannelServices.RegisterChannel( chan );
          
           new Sender();
          
           Console.WriteLine( "press any key to continue..." );
           Console.ReadLine();
        }
    }
}

i have one more object - the Sender(). in here, i start the timer, and 
each 2 seconds will event rise up and call the method, i will 
communicate with the remote object with. so here it comes:

using System;
using System.Timers;
using System.Threading;
using System.Runtime.Remoting;
using System.Runtime.Remoting.Channels;
using System.Runtime.Remoting.Channels.Tcp;

namespace remoting
{
   
   
    public class Sender
    {
       System.Timers.Timer timer;
       
        public Sender()
        {
              this.timer = new System.Timers.Timer( 2 * 1000 );
              this.timer.Elapsed += new ElapsedEventHandler( OnTimerEvent );
              this.timer.Enabled = true;
        }
       
        public void OnTimerEvent( object sender, ElapsedEventArgs e )
        {
           Console.WriteLine( ">> timer is running now..." );
          
           Test obj = (Test) Activator.GetObject(
            typeof( Test ),
            "tcp://localhost:11111/Test" );
           
         if( obj.Equals( null ) )
            Console.WriteLine( "some error" );
         else
         {
            Console.WriteLine( ">> yes, i am here..." );     
            Console.WriteLine( obj.Hello() );
            Console.WriteLine( ">>...but i still can't get here :-(" );
         }
      }
}

so - if i didn't make some mistake in copy'n'paste and small rewriteing, 
after compilation and start the server and the client, everything is 
looking good, but the problem is, i will not get the result from the 
remote method Hello() and the code will not get to the last message: 
 >>...but i still can't get here :-("

when i tryed to compile this program in windows, the result was the same 
- no remote call and no last message - so it's not the bug. then after 
dialog with my colleague, i tryed to create a thread instead of timer, 
and try to call the remote object method from the thread. so - after 
some modification, i create a new method in sender and remove the lines 
in constructor. the method is as follows:

      public void InThread()
      {
         for( int i = 0; i < 10; i++ )
         {
            Test obj = (Test) Activator.GetObject(
               typeof( Test ),
               "tcp://localhost:11111/Test" );
           
            Console.WriteLine( obj.ToString() );
            if( obj.Equals( null ) )
               Console.WriteLine( "some error" );
            else
               Console.WriteLine( obj.Hello() );
        
            Thread.Sleep( 2 * 1000 );
         }
      }

nothing specially changed, but after running, the exception raised (also 
in linux (mono) and also in windows (.net framework)):

Unhandled Exception: System.Runtime.Remoting.RemotingException: Cannot 
cast from client type 'sender.Test, sender, Version=1.0.2593.26378, 
Culture=neutral, PublicKeyToken=null' to server type 'remoting.Test'

(the exception sounds simillar in windows:

Unhandled Exception: System.Runtime.Remoting.RemotingException: Cannot 
load type
 sender.Test, ConsoleApplication2, Version=1.0.2592.32086, 
Culture=neutral, Publ
 icKeyToken=null.

)

so - if somebody of you know, what is the problem about, please let me 
know. it will be very helpful for me.

thanks

mirek

-- 
e-mail: mirek at host.sk
jabber: mirek at jabbim.sk
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