[Mono-list] Remoting with interface definition

Urs Muff umuff@quark.com
Mon, 31 Mar 2003 10:14:21 -0700
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Lluis,

Yes, interfaces do work now.  Good work!

Simple chat client however does not work.  Attached you see the exception
that is thrown, and all the source and binaries needed.  I hope this helps
tracking down the problem.  [Note this works on the MS.Net runtime, binaries
compiled with csc].

- URS C. MUFF

> -----Original Message-----
> From: Lluis Sanchez [mailto:lluis@ideary.com]
> Sent: Monday, March 31, 2003 7:29 AM
> To: Urs Muff; mono-list@lists.ximian.com
> Subject: Re: [Mono-list] Remoting with interface definition
> 
> Remoting with interface definitionThis should work now.
> 
> ----- Original Message -----
> From: Urs Muff
> To: 'mono-list@lists.ximian.com'
> Sent: Saturday, March 15, 2003 1:35 AM
> Subject: [Mono-list] Remoting with interface definition
> 
> 
> Using the following concept is not working on mono, but in the MS .Net
> framework:
> Common Lib:
> intercace IServerObj
> {
>         string Name { get; }
> }
> Client:
> main()
> {
>         ChannelServices.RegisterChannel(new TcpChannel(0));
> IServerObject server =
> Activation.GetObject(typeof(IServerObj),"tcp://localhost:8085/Test") as
> IServerObject;
> string name = server.Name;
> }
> Server:
> class ServerObject : MarshalByRefObject, IServerObject
> {
>         public string Name { get { return "Test Server"; } }
> }
> main()
> {
>         ChannelServices.RegisterChannel(new TcpChannel(8085));
> 
> RemotingConfiguration.RegisterWellKnownServiceType(typeof(HelloServer),"Te
> st
> ",WellKnownObjectMode.Singleton);
> }
> This is a very important concept, since it allows hiding the
> implementation
> from the Client.
> The crash is in corlib : Remoting.TypeInfo (since it assumes to be derived
> from object or MarshalByRefObject, which it is not, since it is a pure
> interface).  Fixing that does not help either since it crashes later than,
> since it still assumes it has to be a MarshalByRefObject (which it
> eventually should be since it will become a Proxy [right?]).  I'm not that
> familiar with the mono remoting implementation, but that seems like a
> design
> problem, unless I'm doing something wrong.
> - Urs C. Muff
> Systems Architect       - Research Lab


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Content-Type: application/octet-stream;
	name="Chat.tar.gz"
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
	filename="Chat.tar.gz"

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Content-Type: application/octet-stream;
	name="error.log"
Content-Disposition: attachment;
	filename="error.log"

Unhandled Exception: System.Runtime.Remoting.RemotingException: No receiver
for uri /80fe8269_8a50_4580_94f3_228a57e96a00/554741679_2in [0x00026] (at
/home/umuff/mono/mcs/class/corlib/System.Runtime.Remoting.Proxies/RealProxy.cs:101)
00 System.Runtime.Remoting.Proxies.RealProxy:PrivateInvoke
(System.Runtime.Remoting.Proxies.RealProxy,System.Runtime.Remoting.Messaging.IMessage,System.Exception&,object[]&)
in (unmanaged) 07 RemotingSamples.AbstractEventHandler:SubmissionCallback
(object,RemotingSamples.SubmitEventArgs)
in <0x00004> 07 RemotingSamples.AbstractEventHandler:SubmissionCallback
(object,RemotingSamples.SubmitEventArgs)
in <0x00067> 01 System.MulticastDelegate:invoke_void_object_SubmitEventArgs
(object,RemotingSamples.SubmitEventArgs)
in <0x0011f> 00 RemotingSamples.HelloServer:Submit (string,string)
in (unmanaged) mono [0x80a1e32]
in (unmanaged) mono(mono_runtime_invoke+0x27) [0x80c172f]
in (unmanaged) mono(mono_runtime_invoke_array+0x1fd) [0x80c236d]
in (unmanaged) mono [0x80c7fcb]
in [0x00029] (at
/home/umuff/mono/mcs/class/corlib/System.Runtime.Remoting/RemotingServices.cs:63)
00 System.Runtime.Remoting.RemotingServices:InternalExecuteMessage
(System.MarshalByRefObject,System.Runtime.Remoting.Messaging.IMethodCallMessage)


Exception rethrown at [1]:

in [0x00026] (at
/home/umuff/mono/mcs/class/corlib/System.Runtime.Remoting.Proxies/RealProxy.cs:101)
00 System.Runtime.Remoting.Proxies.RealProxy:PrivateInvoke
(System.Runtime.Remoting.Proxies.RealProxy,System.Runtime.Remoting.Messaging.IMessage,System.Exception&,object[]&)
in (unmanaged) 07 RemotingSamples.IHelloServer:Submit (string,string)
in <0x00004> 07 RemotingSamples.IHelloServer:Submit (string,string)
in <0x0024c> 00 RemotingSamples.ChatClient:Run ()
in <0x00074> 00 RemotingSamples.ChatClient:Main (string[])


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