src/share/vm/gc_implementation/shenandoah/shenandoahHeapRegionCounters.cpp

rev 9705 : [backport] Implement early update references phase.

*** 59,69 ****
        const char* ns = PerfDataManager::ns_to_string(SUN_GC);
        const char* fullname = PerfDataManager::counter_name(ns, data_name);
        assert(!PerfDataManager::exists(fullname), "must not exist");
        _regions_data[i] = PerfDataManager::create_long_variable(SUN_GC, data_name,
                                                                 PerfData::U_None, CHECK);
- 
      }
    }
  }
  
  ShenandoahHeapRegionCounters::~ShenandoahHeapRegionCounters() {
--- 59,68 ----
*** 77,88 ****
      if (current - last > ShenandoahRegionSamplingRate &&
              Atomic::cmpxchg(current, &_last_sample_millis, last) == last) {
  
        ShenandoahHeap* heap = ShenandoahHeap::heap();
        jlong status = 0;
!       if (heap->concurrent_mark_in_progress()) status |= 1;
!       if (heap->is_evacuation_in_progress()) status |= 2;
        _status->set_value(status);
  
        _timestamp->set_value(os::elapsed_counter());
  
        size_t num_regions = heap->num_regions();
--- 76,88 ----
      if (current - last > ShenandoahRegionSamplingRate &&
              Atomic::cmpxchg(current, &_last_sample_millis, last) == last) {
  
        ShenandoahHeap* heap = ShenandoahHeap::heap();
        jlong status = 0;
!       if (heap->concurrent_mark_in_progress()) status |= 1 << 0;
!       if (heap->is_evacuation_in_progress())   status |= 1 << 1;
!       if (heap->is_update_refs_in_progress())  status |= 1 << 2;
        _status->set_value(status);
  
        _timestamp->set_value(os::elapsed_counter());
  
        size_t num_regions = heap->num_regions();