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* FITNESS FOR A PARTICULAR PURPOSE . See the GNU General Public License
* version 2 for more details ( a copy is included in the LICENSE file that
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#ifndef SHARE_GC_Z_ZHEAPITERATOR_HPP
#define SHARE_GC_Z_ZHEAPITERATOR_HPP
#include "gc/shared/collectedHeap.hpp"
#include "gc/shared/taskTerminator.hpp"
#include "gc/shared/taskqueue.hpp"
#include "gc/z/zGranuleMap.hpp"
#include "gc/z/zLock.hpp"
#include "gc/z/zRootsIterator.hpp"
#include "gc/z/zStat.hpp"
class ZHeapIteratorBitMap;
class ZHeapIteratorContext;
using ZHeapIteratorBitMaps = ZGranuleMap<ZHeapIteratorBitMap*>;
using ZHeapIteratorBitMapsIterator = ZGranuleMapIterator<ZHeapIteratorBitMap*>;
using ZHeapIteratorQueue = OverflowTaskQueue<oop, mtGC>;
using ZHeapIteratorQueues = GenericTaskQueueSet<ZHeapIteratorQueue, mtGC>;
using ZHeapIteratorArrayQueue = OverflowTaskQueue<ObjArrayTask, mtGC>;
using ZHeapIteratorArrayQueues = GenericTaskQueueSet<ZHeapIteratorArrayQueue, mtGC>;
class ZHeapIterator : public ParallelObjectIteratorImpl {
friend class ZHeapIteratorContext;
private :
const bool _visit_weaks;
ZStatTimerDisable _timer_disable;
ZHeapIteratorBitMaps _bitmaps;
ZLock _bitmaps_lock;
ZHeapIteratorQueues _queues;
ZHeapIteratorArrayQueues _array_queues;
ZRootsIterator _roots;
ZWeakRootsIterator _weak_roots;
TaskTerminator _terminator;
ZHeapIteratorBitMap* object_bitmap(oop obj);
bool mark_object(oop obj);
void push_strong_roots(const ZHeapIteratorContext& context);
void push_weak_roots(const ZHeapIteratorContext& context);
template <bool VisitWeaks>
void push_roots(const ZHeapIteratorContext& context);
template <bool VisitReferents>
void follow_object(const ZHeapIteratorContext& context, oop obj);
void follow_array(const ZHeapIteratorContext& context, oop obj);
void follow_array_chunk(const ZHeapIteratorContext& context, const ObjArrayTask& array);
template <bool VisitWeaks>
void visit_and_follow(const ZHeapIteratorContext& context, ObjectClosure* cl, oop obj);
template <bool VisitWeaks>
void drain(const ZHeapIteratorContext& context, ObjectClosure* cl);
template <bool VisitWeaks>
void steal(const ZHeapIteratorContext& context, ObjectClosure* cl);
template <bool VisitWeaks>
void drain_and_steal(const ZHeapIteratorContext& context, ObjectClosure* cl);
template <bool VisitWeaks>
void object_iterate_inner(const ZHeapIteratorContext& context, ObjectClosure* cl);
public :
ZHeapIterator(uint nworkers, bool visit_weaks);
virtual ~ZHeapIterator();
virtual void object_iterate(ObjectClosure* cl, uint worker_id);
};
#endif // SHARE_GC_Z_ZHEAPITERATOR_HPP
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