libjava/testsuite/libjava.jvmti/getallthreads.java

   1 // Test JVMTI GetAllThreads
   2
   3 import java.util.ArrayList;
   4
   5 public class getallthreads extends Thread
   6 {
   7          public static int thread_num;
   8          public static ArrayList threads;
   9
  10          public int ex_frames;
  11   public boolean done = false;
  12
  13   public static native void do_getallthreads_tests ();
  14
  15   public void run ()
  16          {
  17     ex_frames = thread_num;
  18                  thread_num++;
  19
  20                  if (ex_frames > 0)
  21                    {
  22         if ((ex_frames % 2) == 0)
  23                                          placeholder ();
  24                                  else
  25                                          natPlaceholder ();
  26                    }
  27                  else
  28       runner ();
  29          }
  30
  31          public native void natPlaceholder ();
  32          public native void natRunner ();
  33
  34          public void placeholder ()
  35          {
  36                  ex_frames--;
  37
  38                  if (ex_frames > 0)
  39                    {
  40                                  if ((thread_num % 2) == 0)
  41                                          placeholder ();
  42                                  else
  43                                          natPlaceholder ();
  44                          }
  45                  else
  46                          runner ();
  47    }
  48
  49          public void runner ()
  50          {
  51                  done = true;
  52                  while (done)
  53                         yield ();
  54          }
  55
  56   public static void main (String[] args)
  57   {
  58     System.out.println ("JVMTI GetAllThreads tests");
  59     threads = new ArrayList (20);
  60
  61                 getallthreads t;
  62
  63                 for (int i = 0; i < 20; i++)
  64                   {
  65                                 t = new getallthreads ();
  66                                 threads.add (t);
  67                                 t.start ();
  68                                 while (!t.done)
  69                                         yield ();
  70                         }
  71
  72                 do_getallthreads_tests ();
  73
  74                 for (int i = 0; i < 20; i++)
  75                   {
  76                                 t = (getallthreads) threads.get(i);
  77                                 t.done = false;
  78                         }
  79   }
  80 }