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Posted 6 Sep 2004

Threading paradigms available under the .NET CLR, using C#

, 22 Dec 2004
This article discusses the various threading paradigms available under the .NET CLR, using C#.
using System;
using System.Threading;
using System.Collections;
using System.Diagnostics;

namespace ManagedThreadCS
{
	/// <summary>
	/// Summary description for CGSRMgrThread.
	/// </summary>
	public class CGSRMgrThread
	{
  private ManualResetEvent _mre;

  private Thread    _t;
  private ArrayList _vecGSR;
  private String    _name;
	 private ArrayList _vec;

  public CGSRMgrThread(ArrayList vec)
  {
   _vec = vec;
		   
   _vecGSR = new ArrayList();
   _mre = new ManualResetEvent(false);

   _t = new Thread(new ThreadStart(ThreadFunc));
   _t.Start();
  }

  ///////////////////////////////////////////////////////////////////////////////
  //  Function    : ThreadFunc
  //  Description : This function contains the code to be executed by the
  //                secondary thread.
  //
  // Modification History
  //  May xx, 2004  gjk  initial design
  //  May 25, 2004  gjk  Added Event object (set event on thread completion)
  ///////////////////////////////////////////////////////////////////////////////
  //
  private void ThreadFunc()
	  {
       Thread.Sleep(5);
       _name = Thread.CurrentThread.GetHashCode().ToString();
       Console.WriteLine("Thread {0} has initialized",_name);
       int it = 0; 
       while (it != _vec.Count)
        {
         GetGSRs((int)_vec[it]);
         Console.WriteLine("Thread {0} Intermediate Result : {1}", _name, _vec[it]);
         ++it;
        }
       Console.WriteLine("Number of records saved : {0}", _vecGSR.Count);
       Console.WriteLine("Thread {0} finished", _name);
      
      // signal event indicating completion of the thread
      _mre.Set();
	  }

  ///////////////////////////////////////////////////////////////////////////////
  //  Function    : GetMRE
  //  Description : Returns the event object for this instance
  //
  // Modification History
  //  May 25, 2004  gjk  original
  ///////////////////////////////////////////////////////////////////////////////
  //
  public ManualResetEvent GetMRE() {return _mre;}


  public void GetGSRs(int obligor)
	  {
    // simulating the retrieval of a number of records for the specified obligor
    // get records

	   // get a record count which is a multiple of the obligor # for testing
    int num = obligor * 2 ;
    for (Int32 x=0; x < num; x++)
     {
      String s;
    	 s = "GSR";
      s = String.Concat(s, x.ToString());
      CGSR gsr = new CGSR(s,"USD",0,0,x);
      gsr.SetObligor(obligor);
      _vecGSR.Add(gsr);
     }
	  }

	 public ArrayList GetGSRs() {return _vecGSR;}
	 protected CGSRMgrThread(){;}

	}
}

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About the Author

Gary J. Kuehn
Engineer
United States United States
No Biography provided

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