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  1. using System;
  2. using System.Threading;
  3. using System.Threading.Tasks;
  4.  
  5. namespace Dela.Mono.Examples
  6. {
  7. 	public class HelloWorld
  8. 	{
  9. 		private static int delayA = 3000;
  10. 		private static int delayB = 3000;
  11.  
  12. 		private static void Log(string message)
  13. 		{
  14. 			Console.WriteLine("{0} {1}", DateTime.Now, message);
  15. 		}
  16.  
  17. 		private static Task<int> LongCalcAsync(int x, int delay)
  18. 		{
  19. 			return Task.Factory.StartNew<int>(() => {
  20. 				return LongCalc(x, delay);
  21. 			});
  22. 		}
  23.  
  24. 		private static int LongCalc(int x, int delay)
  25. 		{
  26. 			Log(String.Format("calc {0}", x));
  27. 			Thread.Sleep(delay);
  28. 			Log(String.Format("done {0}", x));
  29. 			return x;
  30. 		}
  31.  
  32. 		private static void Bar()
  33. 		{
  34. 			Log("bar");
  35. 		}
  36.  
  37. 		// --------------------------------
  38.  
  39.  
  40.  
  41. 		private static async void Foo1()
  42. 		{
  43. 			var a = await LongCalcAsync(1, delayA);
  44. 			var b = await LongCalcAsync(2, delayB);
  45. 			Log(String.Format("foo {0} {1}", a, b));
  46. 		}
  47.  
  48. 		private static async void Foo2()
  49. 		{
  50. 			var ca = LongCalcAsync(1, delayA);
  51. 			var cb = LongCalcAsync(2, delayB);
  52. 			var a = await ca;
  53. 			var b = await cb;
  54. 			Log(String.Format("foo {0} {1}", a, b));
  55. 		}
  56.  
  57. 		private static async void Foo3a()
  58. 		{
  59. 			await Foo3b();
  60. 		}
  61.  
  62. 		private static Task Foo3b()
  63. 		{
  64. 			return Task.Factory.StartNew(() => {
  65. 				var a = LongCalc(1, delayA);
  66. 				var b = LongCalc(2, delayB);
  67. 				Log(String.Format("foo {0} {1}", a, b));
  68. 			});
  69. 		}
  70.  
  71. 		// --------------------------------
  72.  
  73.  
  74.  
  75. 		private static void Test1()
  76. 		{
  77. 			Foo1();
  78. 			Bar();
  79. 			Thread.Sleep(10000);
  80. 		}
  81.  
  82. 		private static void Test2()
  83. 		{
  84. 			Foo2();
  85. 			Bar();
  86. 			Thread.Sleep(10000);
  87. 		}
  88.  
  89. 		private static void Test3a()
  90. 		{
  91. 			Foo3a();
  92. 			Bar();
  93. 			Thread.Sleep(10000);
  94. 		}
  95.  
  96. 		private static async void Test3b()
  97. 		{
  98. 			var done = Foo3b();
  99. 			Bar();
  100. 			await done;
  101. 		}
  102.  
  103. 		// --------------------------------
  104.  
  105.  
  106.  
  107. 		public static void Main(string[] args)
  108. 		{
  109. 			Test1();
  110. 			Console.WriteLine("--------");
  111. 			Test2();
  112. 			Console.WriteLine("--------");
  113. 			Test3a();
  114. 			Console.WriteLine("--------");
  115. 			Test3b();
  116. 			Thread.Sleep(10000);
  117. 		}
  118. 	} 
  119. }
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https://ideone.com/08vJII
language:
C# (gmcs 5.20.1)
created:
13 years ago
visibility:
public

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