Subversion Repositories openrisc

public class getstacktrace

  extends Thread

{

  public boolean done = false;

  // num_frames is the number of frames > the original run () call so if

  // num_frames = 1, the thread will have 2 frames, the original Thread.run

  // call, plus one additional

  public int num_frames, thread_num;

  public static int num_threads = 1;

  static

    {

      System.loadLibrary("natgetstacktrace");

    }

  public void run ()

  {

    thread_num = num_threads++;

    num_frames = thread_num;

    if (num_frames <= 1)

      {

        natRunner ();

      }

    else

      {

        if (thread_num % 2 == 0)

          natPlaceholder ();

        else

          placeholder ();

      }

  }

  public void placeholder ()

  {

    num_frames--;

    if (num_frames <= 1)

      {

        if (thread_num % 2 == 1)

          natRunner ();

        else

          runner ();

      }

    else

      {

        if (thread_num % 2 == 0)

          natPlaceholder ();

        else

          placeholder ();

      }

  }

  public void runner ()

  {

    done = true;

    while (done)

      yield ();

  }

  public native void natPlaceholder ();

  public native void natRunner ();

  public static native int do_getstacktrace_tests (Thread[] threads);

  public static void main (String[] args)

  {

    System.out.println ("JVMTI GetStackTrace Interpreted Test");

    getstacktrace[] threads = new getstacktrace[10];

    for (int i = 0; i < threads.length; i++)

      {

        threads[i] = new getstacktrace ();

        threads[i].start ();

        while (!threads[i].done)

          yield ();

      }

    do_getstacktrace_tests (threads);

    for (int i = 0; i < threads.length; i++)

      {

        threads[i].done = false;

      }

  }

}