529 return _tasks[id];
530 }
531
532 // Returns the task queue with the given id
533 CMTaskQueue* task_queue(int id) {
534 assert(0 <= id && id < (int) _active_tasks,
535 "task queue id not within active bounds");
536 return (CMTaskQueue*) _task_queues->queue(id);
537 }
538
539 // Returns the task queue set
540 CMTaskQueueSet* task_queues() { return _task_queues; }
541
542 // Access / manipulation of the overflow flag which is set to
543 // indicate that the global stack has overflown
544 bool has_overflown() { return _has_overflown; }
545 void set_has_overflown() { _has_overflown = true; }
546 void clear_has_overflown() { _has_overflown = false; }
547 bool restart_for_overflow() { return _restart_for_overflow; }
548
549 bool has_aborted() { return _has_aborted; }
550
551 // Methods to enter the two overflow sync barriers
552 void enter_first_sync_barrier(int task_num);
553 void enter_second_sync_barrier(int task_num);
554
555 ForceOverflowSettings* force_overflow_conc() {
556 return &_force_overflow_conc;
557 }
558
559 ForceOverflowSettings* force_overflow_stw() {
560 return &_force_overflow_stw;
561 }
562
563 ForceOverflowSettings* force_overflow() {
564 if (concurrent()) {
565 return force_overflow_conc();
566 } else {
567 return force_overflow_stw();
568 }
569 }
570
777 inline bool not_yet_marked(oop p) const;
778
779 // XXX Debug code
780 bool containing_card_is_marked(void* p);
781 bool containing_cards_are_marked(void* start, void* last);
782
783 bool isPrevMarked(oop p) const {
784 assert(p != NULL && p->is_oop(), "expected an oop");
785 HeapWord* addr = (HeapWord*)p;
786 assert(addr >= _prevMarkBitMap->startWord() ||
787 addr < _prevMarkBitMap->endWord(), "in a region");
788
789 return _prevMarkBitMap->isMarked(addr);
790 }
791
792 inline bool do_yield_check(uint worker_i = 0);
793 inline bool should_yield();
794
795 // Called to abort the marking cycle after a Full GC takes palce.
796 void abort();
797
798 // This prints the global/local fingers. It is used for debugging.
799 NOT_PRODUCT(void print_finger();)
800
801 void print_summary_info();
802
803 void print_worker_threads_on(outputStream* st) const;
804
805 // The following indicate whether a given verbose level has been
806 // set. Notice that anything above stats is conditional to
807 // _MARKING_VERBOSE_ having been set to 1
808 bool verbose_stats() {
809 return _verbose_level >= stats_verbose;
810 }
811 bool verbose_low() {
812 return _MARKING_VERBOSE_ && _verbose_level >= low_verbose;
813 }
814 bool verbose_medium() {
815 return _MARKING_VERBOSE_ && _verbose_level >= medium_verbose;
816 }
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529 return _tasks[id];
530 }
531
532 // Returns the task queue with the given id
533 CMTaskQueue* task_queue(int id) {
534 assert(0 <= id && id < (int) _active_tasks,
535 "task queue id not within active bounds");
536 return (CMTaskQueue*) _task_queues->queue(id);
537 }
538
539 // Returns the task queue set
540 CMTaskQueueSet* task_queues() { return _task_queues; }
541
542 // Access / manipulation of the overflow flag which is set to
543 // indicate that the global stack has overflown
544 bool has_overflown() { return _has_overflown; }
545 void set_has_overflown() { _has_overflown = true; }
546 void clear_has_overflown() { _has_overflown = false; }
547 bool restart_for_overflow() { return _restart_for_overflow; }
548
549 // Methods to enter the two overflow sync barriers
550 void enter_first_sync_barrier(int task_num);
551 void enter_second_sync_barrier(int task_num);
552
553 ForceOverflowSettings* force_overflow_conc() {
554 return &_force_overflow_conc;
555 }
556
557 ForceOverflowSettings* force_overflow_stw() {
558 return &_force_overflow_stw;
559 }
560
561 ForceOverflowSettings* force_overflow() {
562 if (concurrent()) {
563 return force_overflow_conc();
564 } else {
565 return force_overflow_stw();
566 }
567 }
568
775 inline bool not_yet_marked(oop p) const;
776
777 // XXX Debug code
778 bool containing_card_is_marked(void* p);
779 bool containing_cards_are_marked(void* start, void* last);
780
781 bool isPrevMarked(oop p) const {
782 assert(p != NULL && p->is_oop(), "expected an oop");
783 HeapWord* addr = (HeapWord*)p;
784 assert(addr >= _prevMarkBitMap->startWord() ||
785 addr < _prevMarkBitMap->endWord(), "in a region");
786
787 return _prevMarkBitMap->isMarked(addr);
788 }
789
790 inline bool do_yield_check(uint worker_i = 0);
791 inline bool should_yield();
792
793 // Called to abort the marking cycle after a Full GC takes palce.
794 void abort();
795
796 bool has_aborted() { return _has_aborted; }
797
798 // This prints the global/local fingers. It is used for debugging.
799 NOT_PRODUCT(void print_finger();)
800
801 void print_summary_info();
802
803 void print_worker_threads_on(outputStream* st) const;
804
805 // The following indicate whether a given verbose level has been
806 // set. Notice that anything above stats is conditional to
807 // _MARKING_VERBOSE_ having been set to 1
808 bool verbose_stats() {
809 return _verbose_level >= stats_verbose;
810 }
811 bool verbose_low() {
812 return _MARKING_VERBOSE_ && _verbose_level >= low_verbose;
813 }
814 bool verbose_medium() {
815 return _MARKING_VERBOSE_ && _verbose_level >= medium_verbose;
816 }
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