Return a string from a Service already running using Remoting

Question

im trying to use .Net Remoting to get a value of a variable that i use in a thread of an windows service.

TcpChannel tcpChannel = new TcpChannel(9998);
ChannelServices.RegisterChannel(tcpChannel, false);
Type commonInterfaceType = typeof(MyNameSpace.Core.Engine);
RemotingConfiguration.RegisterWellKnownServiceType(commonInterfaceType,
                                                                "CopyFilePercentage",
                                                                WellKnownObjectMode.SingleCall);
myEngine = Engine.EngineInstance;
myEngine.Start();

But it seams that every time that i use the Client to get that value, a new thread is created returning an empty string.

Any idea why is this happening or am I doing something wrong?

Thanks in advance,

Miguel de Sousa

L.B · Answer 1 · 2012-08-21T19:28:40.693

1

WellKnownObjectMode.SingleCall creates a new instance of your class for each call. try WellKnownObjectMode.Singleton

EDIT

Maybe you should read about client activated objects. Turn your singleton object to a class factory and return a new instance of a real worker class(ofcourse inheriting from MarshalByRefObject) which will be used by the client.

so your client will be something like this

var worker = client.GetWorkerClass();
worker.GetSomeData();

and you will have one server object per connection (this may not be the correct terminology).

edited Aug 21 '12 at 19:28

answered Aug 21 '12 at 18:20

L.B

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but again the object from which, I want to take the value is already created – Miguel de Sousa Aug 21 '12 at 18:29
ok I gave up and just put a global variable... not that pretty but done the job. thanks again – Miguel de Sousa Aug 22 '12 at 16:49

score 0 · Answer 2 · answered Aug 22 '12 at 16:56

well i just used a Global Variable Class not really what I wanted but does the job.

/// <summary>
/// Contains global variables for project.
/// </summary>
public static class GlobalVar
{
    /// <summary>
    /// Global variable that is constant.
    /// </summary>
    public const string GlobalString = "Important Text";

    /// <summary>
    /// Static value protected by access routine.
    /// </summary>
    static int _globalValue;

    /// <summary>
    /// Access routine for global variable.
    /// </summary>
    public static int GlobalValue
    {
        get
        {
            return _globalValue;
        }
        set
        {
            _globalValue = value;
        }
    }

    /// <summary>
    /// Global static field.
    /// </summary>
    public static bool GlobalBoolean;
}

Return a string from a Service already running using Remoting

2 Answers2