617
618 // Free remaining stacks
619 stacks->free(&_allocator);
620 }
621
622 class ZMarkConcurrentRootsIteratorClosure : public ZRootsIteratorClosure {
623 public:
624 virtual void do_oop(oop* p) {
625 ZBarrier::mark_barrier_on_oop_field(p, false /* finalizable */);
626 }
627
628 virtual void do_oop(narrowOop* p) {
629 ShouldNotReachHere();
630 }
631 };
632
633
634 class ZMarkConcurrentRootsTask : public ZTask {
635 private:
636 SuspendibleThreadSetJoiner _sts_joiner;
637 ZConcurrentRootsIterator _roots;
638 ZMarkConcurrentRootsIteratorClosure _cl;
639
640 public:
641 ZMarkConcurrentRootsTask(ZMark* mark) :
642 ZTask("ZMarkConcurrentRootsTask"),
643 _sts_joiner(true /* active */),
644 _roots(ClassLoaderData::_claim_strong),
645 _cl() {
646 ClassLoaderDataGraph_lock->lock();
647 ClassLoaderDataGraph::clear_claimed_marks();
648 }
649
650 ~ZMarkConcurrentRootsTask() {
651 ClassLoaderDataGraph_lock->unlock();
652 }
653
654 virtual void work() {
655 _roots.oops_do(&_cl);
656 }
657 };
658
659 class ZMarkTask : public ZTask {
660 private:
661 ZMark* const _mark;
662 const uint64_t _timeout_in_millis;
663
664 public:
665 ZMarkTask(ZMark* mark, uint64_t timeout_in_millis = 0) :
666 ZTask("ZMarkTask"),
667 _mark(mark),
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617
618 // Free remaining stacks
619 stacks->free(&_allocator);
620 }
621
622 class ZMarkConcurrentRootsIteratorClosure : public ZRootsIteratorClosure {
623 public:
624 virtual void do_oop(oop* p) {
625 ZBarrier::mark_barrier_on_oop_field(p, false /* finalizable */);
626 }
627
628 virtual void do_oop(narrowOop* p) {
629 ShouldNotReachHere();
630 }
631 };
632
633
634 class ZMarkConcurrentRootsTask : public ZTask {
635 private:
636 SuspendibleThreadSetJoiner _sts_joiner;
637 ZConcurrentRootsIteratorClaimStrong _roots;
638 ZMarkConcurrentRootsIteratorClosure _cl;
639
640 public:
641 ZMarkConcurrentRootsTask(ZMark* mark) :
642 ZTask("ZMarkConcurrentRootsTask"),
643 _sts_joiner(),
644 _roots(),
645 _cl() {
646 ClassLoaderDataGraph_lock->lock();
647 }
648
649 ~ZMarkConcurrentRootsTask() {
650 ClassLoaderDataGraph_lock->unlock();
651 }
652
653 virtual void work() {
654 _roots.oops_do(&_cl);
655 }
656 };
657
658 class ZMarkTask : public ZTask {
659 private:
660 ZMark* const _mark;
661 const uint64_t _timeout_in_millis;
662
663 public:
664 ZMarkTask(ZMark* mark, uint64_t timeout_in_millis = 0) :
665 ZTask("ZMarkTask"),
666 _mark(mark),
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