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  1. using System;
  2. using System.Threading;
  3.  
  4. public class Test
  5. {
  6. 	public static void Main()
  7. 	{
  8. 		var ctx1 = new Foo { SleepTime = 1000, Num = 1 };
  9. 		var ctx2 = new Foo { SleepTime = 0, Num = 2 };
  10.  
  11. 		var t1 = new Thread(new ParameterizedThreadStart(Baz));
  12. 		var t2 = new Thread(new ParameterizedThreadStart(Baz));
  13. 		var t3 = new Thread(new ParameterizedThreadStart(Baz));
  14.  
  15. 		t1.Start(ctx1);
  16. 		t2.Start(ctx2);
  17.  
  18. 		ctx1.SleepTime = 500;
  19. 		t3.Start(ctx1);
  20. 	}
  21.  
  22. 	public static void Baz(object o)
  23. 	{
  24. 		Foo foo = (Foo)o;
  25.  
  26. 		lock (foo.SyncRoot)
  27. 		{
  28. 			foo.Bar();
  29. 			foo.Num = 3;
  30. 		}
  31. 	}
  32. }
  33.  
  34. class Foo
  35. {
  36. 	private readonly object _syncRoot = new Object();
  37.  
  38. 	public object SyncRoot { get { return _syncRoot; } }
  39. 	public int SleepTime { get; set; }
  40. 	public int Num { get; set; }
  41.  
  42. 	public void Bar()
  43. 	{
  44. 		Thread.Sleep(SleepTime);
  45. 		Console.WriteLine("Foo " + Num);
  46. 	}
  47. }
Success #stdin #stdout 0.03s 36968KB
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Standard input is empty
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Foo 2
Foo 1
Foo 3
https://ideone.com/u3ApdS
language:
C# (gmcs 5.20.1)
created:
9 years ago
visibility:
secret

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