mono/tests/interlocked-3.cs

   1 using System;
   2 using System.Threading;
   3
   4 public class main {
   5         public static int Main () {
   6                 int n2 = 0, n1 = 1, n, i;
   7                 n = 0;
   8                 i = 0;
   9                 while (i < 10) {
  10                         //n = n2 + n1;
  11                         Interlocked.CompareExchange (ref n, n2 + n1, n);
  12                         //n2 = n1;
  13                         Interlocked.CompareExchange (ref n2, n1, n2);
  14                         //n1 = n;
  15                         Interlocked.CompareExchange (ref n1, n, n1);
  16                         //i = i + 1;
  17                         Interlocked.CompareExchange (ref i, i + 1, i);
  18                 }
  19                 if (n != 89)
  20                         return 1;
  21                 return 0;
  22         }
  23 }