namespace ThreadSyncTest;

internal class Program
{
	static void Main(string[] args)
	{
		int num = 0;
		object obj = new object();

		Thread t1 = new Thread(() =>
		{
			for (int i = 0; i < 1000000; i++)
			{
				lock (obj)
				{
					num++;
				}

				//try
				//{
				//	Monitor.Enter(obj);
				//	num++; // Critical section
				//}
				//finally
				//{
				//	Monitor.Exit(obj);
				//}
			}
		});

		Thread t2 = new Thread(() =>
		{
			for (int i = 0; i < 1000000; i++)
			{
				lock (obj)
				{
					num++;
				}

				//try
				//{
				//	Monitor.Enter(obj);
				//	num++; // Critical section
				//}
				//finally
				//{
				//	Monitor.Exit(obj);
				//}
			}
		});

		t1.Start();
		t2.Start();

		t1.Join();
		t2.Join();

		Console.WriteLine(num);

		Console.ReadLine();
	}
}