Vista - ChannelFactory with NetTCP Binding problem

I think I may be making things more complicated than I need to, but i'm
really stuck here. I'm trying to create a host, and connect to it NetTCP.
Right now I'm trying to do both operations from within a single process, but
am not having any luck at all.

I've got an Interface & Implementation:
[ServiceContract()]
public interface IDoSomething
{
[OperationContract()]
int Add(int x, int y);
}

public class DoSomething : IDoSomething
{
public int Add(int x, int y) { return x + y; }
}

... a member variable & a well known URL:
ServiceHost _host;
string _uri = @"net.tcp://127.0.0.1:9999/test";

Now, I'm create a host:
NetTcpBinding binding = new NetTcpBinding(SecurityMode.None);
_host = new ServiceHost(typeof(DoSomething));
_host.AddServiceEndpoint(typeof(IDoSomething), binding, _uri);
_host.Open();

When that's done, I create a Channel, and try to call the service:

NetTcpBinding tcpBinding = new NetTcpBinding(SecurityMode.None);
EndpointAddress myEndpoint = new EndpointAddress(_uri);

IDoSomething client = ChannelFactory<IDoSomething>.CreateChannel(tcpBinding,
myEndpoint);
int z = client.Add(100, 200);

This just refuses to work - it does when Add() is called. Sometimes I get a
timeout (after 1 minute), other times I get a "socket forcebly closed by
remote host" issue. All the WCF samples that use the various Web Service
bindings work just fine.

I've got Windows Firewall all, I can see the listener IP & port showing up
in the list from NetStat, and things seem correct. I've run WCF Trace, but
to no avail.The exceptions that I see aren't of any use at all.

--
Chris Mullins, MCSD.NET, MCPD:Enterprise, Microsoft C# MVP
http://www.coversant.com/blogs/cmullins

The problem seems to be related to hosting the service & the dynamically
created client proxy in the same process.

If I host them in different processes, everything works well. Ah well. That
just makes it a bit more difficult to test....

--
Chris Mullins, MCSD.NET, MCPD:Enterprise, Microsoft C# MVP
http://www.coversant.com/blogs/cmullins
"Chris Mullins [MVP]" <cmullins@yahoo.com> wrote in message
news:ea1hEEuVHHA.392@TK2MSFTNGP06.phx.gbl...
>I think I may be making things more complicated than I need to, but i'm
>really stuck here. I'm trying to create a host, and connect to it NetTCP.
>Right now I'm trying to do both operations from within a single process,
>but am not having any luck at all.
>
> I've got an Interface & Implementation:
> [ServiceContract()]
> public interface IDoSomething
> {
> [OperationContract()]
> int Add(int x, int y);
> }
>
> public class DoSomething : IDoSomething
> {
> public int Add(int x, int y) { return x + y; }
> }
>
> .. a member variable & a well known URL:
> ServiceHost _host;
> string _uri = @"net.tcp://127.0.0.1:9999/test";
>
> Now, I'm create a host:
> NetTcpBinding binding = new NetTcpBinding(SecurityMode.None);
> _host = new ServiceHost(typeof(DoSomething));
> _host.AddServiceEndpoint(typeof(IDoSomething), binding, _uri);
> _host.Open();
>
> When that's done, I create a Channel, and try to call the service:
>
> NetTcpBinding tcpBinding = new NetTcpBinding(SecurityMode.None);
> EndpointAddress myEndpoint = new EndpointAddress(_uri);
>
> IDoSomething client =
> ChannelFactory<IDoSomething>.CreateChannel(tcpBinding, myEndpoint);
> int z = client.Add(100, 200);
>
> This just refuses to work - it does when Add() is called. Sometimes I get
> a timeout (after 1 minute), other times I get a "socket forcebly closed by
> remote host" issue. All the WCF samples that use the various Web Service
> bindings work just fine.
>
> I've got Windows Firewall all, I can see the listener IP & port showing up
> in the list from NetStat, and things seem correct. I've run WCF Trace, but
> to no avail.The exceptions that I see aren't of any use at all.
>
> --
> Chris Mullins, MCSD.NET, MCPD:Enterprise, Microsoft C# MVP
> http://www.coversant.com/blogs/cmullins
>

I have been working on same. Here is single console app that works here.
Your error sounds like a type issue as I saw that before while testing
various ways. hth

FooService.cs
==============================================================
using System;
using System.Configuration;
using System.ServiceModel;
using System.Runtime.Serialization;

namespace Wjs.FooService
{
// Define a service contract.
[ServiceContract(Namespace = "http://Wjs.FooService")]
public interface IMyService
{
[OperationContract]
string GetName();
[OperationContract]
Person GetPerson();
[OperationContract]
bool SetPerson(Person person);
}

// WCF Service class which implements the service contract.
public class MyService : IMyService
{
public string GetName()
{
return "JobService";
}
public Person GetPerson()
{
return new Person();
}
public bool SetPerson(Person p)
{
return true;
}
}

[DataContract]
public class Person
{
[DataMember]
public string Name = "William";
}
}

Program.cs
=================================================================================
using System;
using System.Collections.Generic;
using System.Text;
using System.Configuration;
using System.ServiceModel;

namespace Wjs.FooService
{
/// <summary>
/// Represents a minimal WCF self-hosted service using a console app.
/// To Make client proxy: svcutil http://localhost:44001/MyService/
/// </summary>
class Program
{
static void Main(string[] args)
{
// Create a ServiceHost for the CalculatorService type.
using (ServiceHost serviceHost = new
ServiceHost(typeof(MyService)))
{
// Open the ServiceHost to create listeners and start
listening for messages.
serviceHost.Open();

// The service can now be accessed. We can now also make
blocking calls as service
// will handle requests on seperate threads.
Console.WriteLine("MyService is started.");

DoClient();

Console.WriteLine("Press <ENTER> to terminate service.");
Console.ReadLine();
}
}

static void DoClient()
{
NetTcpBinding tcpBinding = new NetTcpBinding();
EndpointAddress myEndpoint = new
EndpointAddress("net.tcp://localhost:44002/MyService");
using (ChannelFactory<IMyService> tcpChannel = new
ChannelFactory<IMyService>(tcpBinding, myEndpoint))
{
IMyService js = tcpChannel.CreateChannel(); // Create
proxy to service.
Console.WriteLine(js.GetName());
Person p = js.GetPerson();
Console.WriteLine("Person: {0}", p.Name);
bool result = js.SetPerson(p);
Console.WriteLine("SetPerson result:{0}", result);
}
}
}
}

App.Config (used by server side)
=============================================================================
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<system.serviceModel>
<services>
<service name="Wjs.FooService.MyService"
behaviorConfiguration="MEXGET">
<host>
<baseAddresses>
<add baseAddress="net.tcp://localhost:44002/MyService"/>
</baseAddresses>
</host>
<endpoint address=""
binding="netTcpBinding"
contract="Wjs.FooService.IMyService" />
<endpoint address="MEX"
binding="mexTcpBinding"
contract="IMetadataExchange" />
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="MEXGET">
<serviceMetadata />
<serviceDebug includeExceptionDetailInFaults="True" />
</behavior>
</serviceBehaviors>
</behaviors>
</system.serviceModel>
</configuration>


--
William Stacey [C# MVP]
PCR concurrency library: www.codeplex.com/pcr
PSH Scripts Project www.codeplex.com/psobject

I'm not really clear on the difference between your code & mine.

I was trying to do everything in code, with no config file at all. Looking
at your config, the difference seems to be that you've got a Metadata
Exchange endpoint enabled, whereas I don't.

The trouble for me is that my code works great if I split it into two
processes - a client & a server. I can have any number of clients all
hitting the server as well, and things are happy. It's *only* the
single-process case that's causing me troubles.

I'll give it a shot using the MEX endpoint...

--
Chris Mullins, MCSD.NET, MCPD:Enterprise, Microsoft C# MVP
http://www.coversant.com/blogs/cmullins

"William Stacey [C# MVP]" <william.stacey@gmail.com> wrote in message
news:uN9iNpwVHHA.4720@TK2MSFTNGP04.phx.gbl...
>I have been working on same. Here is single console app that works here.
> Your error sounds like a type issue as I saw that before while testing
> various ways. hth
>
> FooService.cs
> ==============================================================
> using System;
> using System.Configuration;
> using System.ServiceModel;
> using System.Runtime.Serialization;
>
> namespace Wjs.FooService
> {
> // Define a service contract.
> [ServiceContract(Namespace = "http://Wjs.FooService")]
> public interface IMyService
> {
> [OperationContract]
> string GetName();
> [OperationContract]
> Person GetPerson();
> [OperationContract]
> bool SetPerson(Person person);
> }
>
> // WCF Service class which implements the service contract.
> public class MyService : IMyService
> {
> public string GetName()
> {
> return "JobService";
> }
> public Person GetPerson()
> {
> return new Person();
> }
> public bool SetPerson(Person p)
> {
> return true;
> }
> }
>
> [DataContract]
> public class Person
> {
> [DataMember]
> public string Name = "William";
> }
> }
>
> Program.cs
> =================================================================================
> using System;
> using System.Collections.Generic;
> using System.Text;
> using System.Configuration;
> using System.ServiceModel;
>
> namespace Wjs.FooService
> {
> /// <summary>
> /// Represents a minimal WCF self-hosted service using a console app.
> /// To Make client proxy: svcutil http://localhost:44001/MyService/
> /// </summary>
> class Program
> {
> static void Main(string[] args)
> {
> // Create a ServiceHost for the CalculatorService type.
> using (ServiceHost serviceHost = new
> ServiceHost(typeof(MyService)))
> {
> // Open the ServiceHost to create listeners and start
> listening for messages.
> serviceHost.Open();
>
> // The service can now be accessed. We can now also make
> blocking calls as service
> // will handle requests on seperate threads.
> Console.WriteLine("MyService is started.");
>
> DoClient();
>
> Console.WriteLine("Press <ENTER> to terminate service.");
> Console.ReadLine();
> }
> }
>
> static void DoClient()
> {
> NetTcpBinding tcpBinding = new NetTcpBinding();
> EndpointAddress myEndpoint = new
> EndpointAddress("net.tcp://localhost:44002/MyService");
> using (ChannelFactory<IMyService> tcpChannel = new
> ChannelFactory<IMyService>(tcpBinding, myEndpoint))
> {
> IMyService js = tcpChannel.CreateChannel(); // Create
> proxy to service.
> Console.WriteLine(js.GetName());
> Person p = js.GetPerson();
> Console.WriteLine("Person: {0}", p.Name);
> bool result = js.SetPerson(p);
> Console.WriteLine("SetPerson result:{0}", result);
> }
> }
> }
> }
>
> App.Config (used by server side)
> =============================================================================
> <?xml version="1.0" encoding="utf-8" ?>
> <configuration>
> <system.serviceModel>
> <services>
> <service name="Wjs.FooService.MyService"
> behaviorConfiguration="MEXGET">
> <host>
> <baseAddresses>
> <add baseAddress="net.tcp://localhost:44002/MyService"/>
> </baseAddresses>
> </host>
> <endpoint address=""
> binding="netTcpBinding"
> contract="Wjs.FooService.IMyService" />
> <endpoint address="MEX"
> binding="mexTcpBinding"
> contract="IMetadataExchange" />
> </service>
> </services>
> <behaviors>
> <serviceBehaviors>
> <behavior name="MEXGET">
> <serviceMetadata />
> <serviceDebug includeExceptionDetailInFaults="True" />
> </behavior>
> </serviceBehaviors>
> </behaviors>
> </system.serviceModel>
> </configuration>
>
>
> --
> William Stacey [C# MVP]
> PCR concurrency library: www.codeplex.com/pcr
> PSH Scripts Project www.codeplex.com/psobject
>
>
>

Hmm. AFAICT, the mex should not be needed at this point as we are not using
it here. I can take a look if you want to zip up and post your single
process solution that shows the error. I know these things can drive you
crazy until you find it.

--
William Stacey [C# MVP]
PCR concurrency library: www.codeplex.com/pcr
PSH Scripts Project www.codeplex.com/psobject


"Chris Mullins [MVP]" <cmullins@yahoo.com> wrote in message
news:OTLtcs3VHHA.5060@TK2MSFTNGP06.phx.gbl...
| I'm not really clear on the difference between your code & mine.
|
| I was trying to do everything in code, with no config file at all. Looking
| at your config, the difference seems to be that you've got a Metadata
| Exchange endpoint enabled, whereas I don't.
|
| The trouble for me is that my code works great if I split it into two
| processes - a client & a server. I can have any number of clients all
| hitting the server as well, and things are happy. It's *only* the
| single-process case that's causing me troubles.
|
| I'll give it a shot using the MEX endpoint...
|
| --
| Chris Mullins, MCSD.NET, MCPD:Enterprise, Microsoft C# MVP
| http://www.coversant.com/blogs/cmullins
|
| "William Stacey [C# MVP]" <william.stacey@gmail.com> wrote in message
| news:uN9iNpwVHHA.4720@TK2MSFTNGP04.phx.gbl...
| >I have been working on same. Here is single console app that works here.
| > Your error sounds like a type issue as I saw that before while testing
| > various ways. hth
| >
| > FooService.cs
| > ==============================================================
| > using System;
| > using System.Configuration;
| > using System.ServiceModel;
| > using System.Runtime.Serialization;
| >
| > namespace Wjs.FooService
| > {
| > // Define a service contract.
| > [ServiceContract(Namespace = "http://Wjs.FooService")]
| > public interface IMyService
| > {
| > [OperationContract]
| > string GetName();
| > [OperationContract]
| > Person GetPerson();
| > [OperationContract]
| > bool SetPerson(Person person);
| > }
| >
| > // WCF Service class which implements the service contract.
| > public class MyService : IMyService
| > {
| > public string GetName()
| > {
| > return "JobService";
| > }
| > public Person GetPerson()
| > {
| > return new Person();
| > }
| > public bool SetPerson(Person p)
| > {
| > return true;
| > }
| > }
| >
| > [DataContract]
| > public class Person
| > {
| > [DataMember]
| > public string Name = "William";
| > }
| > }
| >
| > Program.cs
| >
=================================================================================
| > using System;
| > using System.Collections.Generic;
| > using System.Text;
| > using System.Configuration;
| > using System.ServiceModel;
| >
| > namespace Wjs.FooService
| > {
| > /// <summary>
| > /// Represents a minimal WCF self-hosted service using a console app.
| > /// To Make client proxy: svcutil http://localhost:44001/MyService/
| > /// </summary>
| > class Program
| > {
| > static void Main(string[] args)
| > {
| > // Create a ServiceHost for the CalculatorService type.
| > using (ServiceHost serviceHost = new
| > ServiceHost(typeof(MyService)))
| > {
| > // Open the ServiceHost to create listeners and start
| > listening for messages.
| > serviceHost.Open();
| >
| > // The service can now be accessed. We can now also make
| > blocking calls as service
| > // will handle requests on seperate threads.
| > Console.WriteLine("MyService is started.");
| >
| > DoClient();
| >
| > Console.WriteLine("Press <ENTER> to terminate service.");
| > Console.ReadLine();
| > }
| > }
| >
| > static void DoClient()
| > {
| > NetTcpBinding tcpBinding = new NetTcpBinding();
| > EndpointAddress myEndpoint = new
| > EndpointAddress("net.tcp://localhost:44002/MyService");
| > using (ChannelFactory<IMyService> tcpChannel = new
| > ChannelFactory<IMyService>(tcpBinding, myEndpoint))
| > {
| > IMyService js = tcpChannel.CreateChannel(); // Create
| > proxy to service.
| > Console.WriteLine(js.GetName());
| > Person p = js.GetPerson();
| > Console.WriteLine("Person: {0}", p.Name);
| > bool result = js.SetPerson(p);
| > Console.WriteLine("SetPerson result:{0}", result);
| > }
| > }
| > }
| > }
| >
| > App.Config (used by server side)
| >
=============================================================================
| > <?xml version="1.0" encoding="utf-8" ?>
| > <configuration>
| > <system.serviceModel>
| > <services>
| > <service name="Wjs.FooService.MyService"
| > behaviorConfiguration="MEXGET">
| > <host>
| > <baseAddresses>
| > <add baseAddress="net.tcp://localhost:44002/MyService"/>
| > </baseAddresses>
| > </host>
| > <endpoint address=""
| > binding="netTcpBinding"
| > contract="Wjs.FooService.IMyService" />
| > <endpoint address="MEX"
| > binding="mexTcpBinding"
| > contract="IMetadataExchange" />
| > </service>
| > </services>
| > <behaviors>
| > <serviceBehaviors>
| > <behavior name="MEXGET">
| > <serviceMetadata />
| > <serviceDebug includeExceptionDetailInFaults="True" />
| > </behavior>
| > </serviceBehaviors>
| > </behaviors>
| > </system.serviceModel>
| > </configuration>
| >
| >
| > --
| > William Stacey [C# MVP]
| > PCR concurrency library: www.codeplex.com/pcr
| > PSH Scripts Project www.codeplex.com/psobject
| >
| >
| >
|
|