Synchronization Basics and Concept of Using a Synchronized Wrapper

namespace com.sarmal.articles.en.synchronization
{
	using System;
	using System.Threading;

	/// <summary> 
	///		<disclaimer>
	///			<d>2005� volkan.ozcelik                                                   </d>
	///			<d>_______________________________________________________________________</d>
	///			<d>                                                                       </d>
	///			<d>You may use and modify this code as you like, either for professional  </d>
	///			<d>development or as per your personal interest.                          </d>
	///			<d>Just do not remove this disclaimer and the following meta information. </d>
	///			<d>_______________________________________________________________________</d>
	///			<d>                                                                       </d>
	///			<d>Note that I always like to get mentioned where my code and/or know-how </d> 
	///			<d>is being used. However, I do not require it. I am more willing to help </d>
	///			<d>people who inform and support me with their content or comments.       </d>
	///			<d>_______________________________________________________________________</d>
	///		</disclaimer>
	///		<meta-data>
	///			<file-created>2005.02.21</file-created>
	///			<version>1.0.0.@20050221</version>
	///			<article>"Synchronization Basics and Concept of Using a Synchronized Wrapper"</article>
	///			<author>
	///				<name>volkan.ozcelik</name>
	///				<e-mail>volkan.ozcelik@gmail.com</e-mail>
	///			</author>
	///		</meta-data>
	///		<description>The test case.</description>
	///	</summary>
	public class Test
	{
		/// <summary>
		/// Member to test
		/// </summary>
		private static BankAccountImpl acc;

		/// <summary>
		/// Main entry point.
		/// </summary>
		/// <param name="args">varargin</param>
		public static void Main(string[] args) {
			
			acc = new BankAccountImpl();
			/* 
			 * remove the commented line below and 
			 * rebuild project to see the difference.
			 */
			//acc = BankAccountImpl.Synchronized(acc);

			Thread[] army = {
				new Thread(new ThreadStart(run)),
				new Thread(new ThreadStart(run)),
				new Thread(new ThreadStart(run)),
				new Thread(new ThreadStart(run)),
				new Thread(new ThreadStart(run)),
				new Thread(new ThreadStart(run)),
				new Thread(new ThreadStart(run)),
				new Thread(new ThreadStart(run)),
				new Thread(new ThreadStart(run)),
				new Thread(new ThreadStart(run)),
				new Thread(new ThreadStart(run)),
				new Thread(new ThreadStart(run))
			};

			Console.WriteLine("Total balance is expected to be:  {0}.", army.Length * 10);

			for(int i=0;i<army.Length;i++) {
				army[i].Name = "Thread-" + i;
				Console.WriteLine("Starting " + army[i].Name);
				army[i].Start();
			}

			for(int i=0;i<army.Length;i++) {
				Console.WriteLine("Joining " + army[i].Name);
				army[i].Join();
			}

			Console.WriteLine("The current balance is {0}.", acc.Balance);

			Console.ReadLine();
		
		}

		/// <summary>
		/// runnable method for the thread army.
		/// </summary>
		private static void run() {
			Console.WriteLine(Thread.CurrentThread.Name + " entered add.");
			for(int i=0;i<10;i++) {
				Console.WriteLine(Thread.CurrentThread.Name + ": Balance before add : {0}", acc.Balance);
				acc.Add(1);
				Console.WriteLine(Thread.CurrentThread.Name + ": Balance after add : {0}", acc.Balance);
			}
			Console.WriteLine(Thread.CurrentThread.Name + " exited add.");
		}
	}
}