HeapRegion::HeapRegion(uint hrs_index,
G1BlockOffsetSharedArray* sharedOffsetArray,
MemRegion mr) :
G1OffsetTableContigSpace(sharedOffsetArray, mr),
_hrs_index(hrs_index),
_humongous_type(NotHumongous), _humongous_start_region(NULL),
_in_collection_set(false),
_next_in_special_set(NULL), _orig_end(NULL),
_claimed(InitialClaimValue), _evacuation_failed(false),
_prev_marked_bytes(0), _next_marked_bytes(0), _gc_efficiency(0.0),
_young_type(NotYoung), _next_young_region(NULL),
_next_dirty_cards_region(NULL), _next(NULL), _prev(NULL), _pending_removal(false),
#ifdef ASSERT
_containing_set(NULL),
#endif // ASSERT
_young_index_in_cset(-1), _surv_rate_group(NULL), _age_index(-1),
_rem_set(NULL), _recorded_rs_length(0), _predicted_elapsed_time_ms(0),
_predicted_bytes_to_copy(0)
{
_rem_set = new HeapRegionRemSet(sharedOffsetArray, this);
_orig_end = mr.end();
// Note that initialize() will set the start of the unmarked area of the
// region.
hr_clear(false /*par*/, false /*clear_space*/);
set_top(bottom());
set_saved_mark();
assert(HeapRegionRemSet::num_par_rem_sets() > 0, "Invariant.");
}
void HeapRegion::initialize(MemRegion mr, bool clear_space, bool mangle_space) {
assert(_rem_set->is_empty(), "Remembered set must be empty");
G1OffsetTableContigSpace::initialize(mr, clear_space, mangle_space);
_orig_end = mr.end();
hr_clear(false /*par*/, false /*clear_space*/);
set_top(bottom());
record_timestamp();
}
void HeapRegion::initialize(MemRegion mr, bool clear_space, bool mangle_space) {
G1OffsetTableContigSpace::initialize(mr, false, mangle_space);
hr_clear(false/*par*/, clear_space);
}
