mono/tests/interlocked.cs

   1 using System;
   2 using System.Threading;
   3
   4 public class InterlockTest
   5 {
   6         public int test;
   7         public int add;
   8         public int rem;
   9
  10         static int s_test;
  11
  12         public static int Main() {
  13                 int a,b;
  14
  15                 InterlockTest it = new InterlockTest ();
  16
  17                 it.test = 0;
  18                 int c = Interlocked.Exchange (ref it.test, 1);
  19                 if (c != 0)
  20                         return 1;
  21
  22                 if (it.test != 1)
  23                         return 2;
  24
  25                 it.test = -2;
  26                 c = Interlocked.CompareExchange (ref it.test, 1, -2);
  27                 if (c != -2)
  28                         return 3;
  29
  30                 if (it.test != 1)
  31                         return 4;
  32
  33                 a = 1;
  34                 b = Interlocked.Increment (ref a);
  35                 if (a != 2)
  36                         return 5;
  37                 if (b != 2)
  38                         return 6;
  39
  40                 a = 2;
  41                 b = Interlocked.Decrement (ref a);
  42                 if (b != 1)
  43                         return 7;
  44                 if (a != 1)
  45                         return 8;
  46
  47                 string s = IncTest ();
  48                 if (s != "A1")
  49                         return 9;
  50
  51                 s = IncTest ();
  52                 if (s != "A2")
  53                         return 10;
  54
  55                 Thread.MemoryBarrier ();
  56
  57                 Console.WriteLine ("done!");
  58
  59                 return 0;
  60         }
  61
  62         public static string IncTest () {
  63                 return "A" + Interlocked.Increment (ref s_test);
  64         }
  65 }