コード例 #1
0
ファイル: heapRegion.cpp プロジェクト: BaHbKaTX/openjdk
void HeapRegion::hr_clear(bool par, bool clear_space) {
  _humongous_type = NotHumongous;
  _humongous_start_region = NULL;
  _in_collection_set = false;
  _is_gc_alloc_region = false;

  // Age stuff (if parallel, this will be done separately, since it needs
  // to be sequential).
  G1CollectedHeap* g1h = G1CollectedHeap::heap();

  set_young_index_in_cset(-1);
  uninstall_surv_rate_group();
  set_young_type(NotYoung);

  // In case it had been the start of a humongous sequence, reset its end.
  set_end(_orig_end);

  if (!par) {
    // If this is parallel, this will be done later.
    HeapRegionRemSet* hrrs = rem_set();
    if (hrrs != NULL) hrrs->clear();
    _claimed = InitialClaimValue;
  }
  zero_marked_bytes();
  set_sort_index(-1);

  _offsets.resize(HeapRegion::GrainWords);
  init_top_at_mark_start();
  if (clear_space) clear(SpaceDecorator::Mangle);
}
コード例 #2
0
void HeapRegion::hr_clear(bool par, bool clear_space, bool locked) {
  assert(_humongous_type == NotHumongous,
         "we should have already filtered out humongous regions");
  assert(_humongous_start_region == NULL,
         "we should have already filtered out humongous regions");
  assert(_end == _orig_end,
         "we should have already filtered out humongous regions");

  _in_collection_set = false;

  set_young_index_in_cset(-1);
  uninstall_surv_rate_group();
  set_young_type(NotYoung);
  reset_pre_dummy_top();

  if (!par) {
    // If this is parallel, this will be done later.
    HeapRegionRemSet* hrrs = rem_set();
    if (locked) {
      hrrs->clear_locked();
    } else {
      hrrs->clear();
    }
    _claimed = InitialClaimValue;
  }
  zero_marked_bytes();

  _offsets.resize(HeapRegion::GrainWords);
  init_top_at_mark_start();
  if (clear_space) clear(SpaceDecorator::Mangle);
}
コード例 #3
0
void HeapRegion::par_clear() {
  assert(used() == 0, "the region should have been already cleared");
  assert(capacity() == HeapRegion::GrainBytes, "should be back to normal");
  HeapRegionRemSet* hrrs = rem_set();
  hrrs->clear();
  CardTableModRefBS* ct_bs =
                   (CardTableModRefBS*)G1CollectedHeap::heap()->barrier_set();
  ct_bs->clear(MemRegion(bottom(), end()));
}