src/share/vm/jfr/support/jfrThreadLocal.cpp

rev 9380 : 8237499: JFR: Include stack trace in the ThreadStart event
Reviewed-by: egahlin

*** 53,63 ****
    _cpu_time(0),
    _wallclock_time(os::javaTimeNanos()),
    _stack_trace_hash(0),
    _stackdepth(0),
    _entering_suspend_flag(0),
!   _dead(false) {}
  
  u8 JfrThreadLocal::add_data_lost(u8 value) {
    _data_lost += value;
    return _data_lost;
  }
--- 53,67 ----
    _cpu_time(0),
    _wallclock_time(os::javaTimeNanos()),
    _stack_trace_hash(0),
    _stackdepth(0),
    _entering_suspend_flag(0),
!   _dead(false) {
! 
!   Thread* thread = Thread::current_or_null();
!   _parent_trace_id = thread != NULL ? thread->jfr_thread_local()->trace_id() : (traceid)0;
! }
  
  u8 JfrThreadLocal::add_data_lost(u8 value) {
    _data_lost += value;
    return _data_lost;
  }
*** 76,85 ****
--- 80,90 ----
  }
  
  static void send_java_thread_start_event(JavaThread* jt) {
    EventThreadStart event;
    event.set_thread(jt->jfr_thread_local()->thread_id());
+   event.set_parentThread(jt->jfr_thread_local()->parent_thread_id());
    event.commit();
  }
  
  void JfrThreadLocal::on_start(Thread* t) {
    assert(t != NULL, "invariant");
*** 87,96 ****
--- 92,104 ----
    if (JfrRecorder::is_recording()) {
      if (t->is_Java_thread()) {
        send_java_thread_start_event((JavaThread*)t);
      }
    }
+   if (t->jfr_thread_local()->has_cached_stack_trace()) {
+     t->jfr_thread_local()->clear_cached_stack_trace();
+   }
  }
  
  static void send_java_thread_end_events(traceid id, JavaThread* jt) {
    assert(jt != NULL, "invariant");
    assert(Thread::current() == jt, "invariant");