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Any plans for have ParameterizedThreadStart available in the MF?

Started by Giuliano, Jul 10 2012 04:07 AM

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7 replies to this topic

#1 Giuliano

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LocationSimi Valley, CA

Posted 10 July 2012 - 04:07 AM

Good day everyone. Any plans to have ParameterizedThreadStart available in the MF? Thanks

Solo s� que no s� nada

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#2 hanzibal

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LocationSweden

Posted 10 July 2012 - 12:41 PM

Don't know about the plans, but in the meantime this might do:

class param
{
    private int p;

    public param(int p)
    {
        // store the param
        this.p = p;
    }

    public void worker()
    {
        // use the param
        if (p == 1)
            Debug.Print("param is 1");
    }
}

class Program
{
    static void Main(string[] args)
    {
        // create a new thread with the integer value 1 as parameter
        Thread t = new Thread(new param(1).worker);

        // start it
        t.Start();
    }
}

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#3 Giuliano

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361 posts

LocationSimi Valley, CA

Posted 10 July 2012 - 03:38 PM

Don't know about the plans, but in the meantime this might do:

class param
{
    private int p;

    public param(int p)
    {
        // store the param
        this.p = p;
    }

    public void worker()
    {
        // use the param
        if (p == 1)
            Debug.Print("param is 1");
    }
}

class Program
{
    static void Main(string[] args)
    {
        // create a new thread with the integer value 1 as parameter
        Thread t = new Thread(new param(1).worker);

        // start it
        t.Start();
    }
}

Thank you Hanzibal

Solo s� que no s� nada

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#4 Nobby

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70 posts

Posted 13 July 2012 - 03:41 AM

Good day everyone.

Any plans to have ParameterizedThreadStart available in the MF?

Thanks

You can use lambda expressions in conjunction with the standard ThreadStart class. It allows you to have type-safe targets as well.

class MyClass
{
     Thread myThread = null;

     public MyClass()
     {
         this.myThread = new Thread(() => MyClass.threadFunc(this));
         this.myThread.Start();
     }

     private static void threadFunc(MyClass myClassObject)
     {
            //do stuff here
     }
}

Target delegate doesn't have to be static either

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#5 hanzibal

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Posted 13 July 2012 - 04:23 PM

Didn't think of that, do you know if lambda expressions are supported in Framework v4.1 or only in v4.2?

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#6 Cuno

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LocationZ�rich / Switzerland

Posted 13 July 2012 - 04:49 PM

Didn't think of that, do you know if lambda expressions are supported in Framework v4.1 or only in v4.2?

Lambdas purely a compiler mechanism; no special support is needed in the framework. So yes, lambdas work in both versions. (I even used them briefly in my book I think.)

Cuno