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TLS: An exercise in concurrent programming

, 11 May 2008
A walkthough about multi-threading an app and a useful helper class
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Reflection;
using System.Threading;
using System.Diagnostics;
using System.Windows;

namespace TLS
{

	//=============================================================================================

	class TestAttribute : Attribute
	{
		public int Index { get; set; }
		public string Name { get; set; }

		public TestAttribute( int index, string name )
		{
			Index = index;
			Name = name;
		}
	}

	//=============================================================================================

	class TestInfo : DependencyObject
	{
		//-----------------------------------------------------------------------------------------
		// all tests

		static SortedList<int, TestInfo> _Tests = new SortedList<int, TestInfo>();

		public static ICollection<TestInfo> Tests { get { return _Tests.Values; } }

		static TestInfo()
		{
			var assembly = Assembly.GetExecutingAssembly();
			foreach ( var type in assembly.GetTypes() )
				foreach ( var attribute in type.GetCustomAttributes( typeof( TestAttribute ), false ) )
				{
					var a = attribute as TestAttribute;
					_Tests.Add( a.Index, new TestInfo { Attribute = a, Type = type } );
				}
		}

		//-----------------------------------------------------------------------------------------

		public TestAttribute Attribute { get; set; }
		public Type Type { get; set; }

		public TestBase Create()
		{
			return Activator.CreateInstance( Type ) as TestBase;
		}

		//-----------------------------------------------------------------------------------------
		// DependencyProperties

		public int IterationsPerSecond
		{
			get { return ( int ) GetValue( IterationsPerSecondProperty ); }
			set { SetValue( IterationsPerSecondProperty, value ); }
		}

		public int IterationsPerSecondPerCore
		{
			get { return ( int ) GetValue( IterationsPerSecondPerCoreProperty ); }
			set { SetValue( IterationsPerSecondPerCoreProperty, value ); }
		}

		public static readonly DependencyProperty IterationsPerSecondProperty =
			DependencyProperty.Register(
			"OperationsPerSecond",
			typeof( int ),
			typeof( TestInfo ),
			new PropertyMetadata( 0 ) );

		public static readonly DependencyProperty IterationsPerSecondPerCoreProperty =
			DependencyProperty.Register(
			"OperationsPerSecondPerCore",
			typeof( int ),
			typeof( TestInfo ),
			new PropertyMetadata( 0 ) );

		//-----------------------------------------------------------------------------------------
	}

	//=============================================================================================

}

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This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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About the Author

Nicholas Butler

United Kingdom United Kingdom

I built my first computer, a Sinclair ZX80, on my 11th birthday in 1980.
In 1992, I completed my Computer Science degree and built my first PC.
I discovered C# and .NET 1.0 Beta 1 in late 2000 and loved them immediately.
I have been writing concurrent software professionally, using multi-processor machines, since 1995.
 
In real life, I have spent 3 years travelling abroad,
I have held a UK Private Pilots Licence for 20 years,
and I am a PADI Divemaster.
 
I now live near idyllic Bournemouth in England.
 
If you would like help with multithreading, please contact me via my website:
 
 
I can work 'virtually' anywhere!

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