void process_buffer () {
assert((_hr_curr - _hr_buffer) == (_buffer_curr - _buffer),
"the two lengths should be the same");
double start = os::elapsedTime();
HeapRegion** hr_curr = _hr_buffer;
HeapRegion* hr_prev = NULL;
for (StarTask* curr = _buffer; curr < _buffer_curr; ++curr) {
HeapRegion* region = *hr_curr;
if (region != hr_prev) {
_oc->set_region(region);
hr_prev = region;
}
if (curr->is_narrow()) {
assert(UseCompressedOops, "Error");
_oc->do_oop((narrowOop*)(*curr));
} else {
_oc->do_oop((oop*)(*curr));
}
++hr_curr;
}
_buffer_curr = _buffer;
_hr_curr = _hr_buffer;
_closure_app_seconds += (os::elapsedTime() - start);
}
void scanCard(size_t index, HeapRegion *r) {
_cards_done++;
DirtyCardToOopClosure* cl =
r->new_dcto_closure(_oc,
CardTableModRefBS::Precise,
HeapRegionDCTOC::IntoCSFilterKind);
// Set the "from" region in the closure.
_oc->set_region(r);
HeapWord* card_start = _bot_shared->address_for_index(index);
HeapWord* card_end = card_start + G1BlockOffsetSharedArray::N_words;
Space *sp = SharedHeap::heap()->space_containing(card_start);
MemRegion sm_region;
if (ParallelGCThreads > 0) {
// first find the used area
sm_region = sp->used_region_at_save_marks();
} else {
// The closure is not idempotent. We shouldn't look at objects
// allocated during the GC.
sm_region = sp->used_region_at_save_marks();
}
MemRegion mr = sm_region.intersection(MemRegion(card_start,card_end));
if (!mr.is_empty()) {
cl->do_MemRegion(mr);
}
}
void process_buffer () {
assert((_hr_curr - _hr_buffer) == (_buffer_curr - _buffer),
"the two lengths should be the same");
double start = os::elapsedTime();
HeapRegion **hr_curr = _hr_buffer;
HeapRegion *hr_prev = NULL;
for (oop **curr = _buffer; curr < _buffer_curr; ++curr) {
HeapRegion *region = *hr_curr;
if (region != hr_prev) {
_oc->set_region(region);
hr_prev = region;
}
_oc->do_oop(*curr);
++hr_curr;
}
_buffer_curr = _buffer;
_hr_curr = _hr_buffer;
_closure_app_seconds += (os::elapsedTime() - start);
}
template <class T> void do_oop_work(T* p) {
oop obj = oopDesc::load_decode_heap_oop(p);
if (_g1->obj_in_cs(obj)) _blk->do_oop(p);
}
void set_region(HeapRegion* from) {
_blk->set_region(from);
}
