src/hotspot/share/gc/g1/g1FullGCResetMetadataTask.hpp

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * version 2 for more details (a copy is included in the LICENSE file that
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#ifndef SHARE_GC_G1_G1FULLGCRESETMETADATATASK_HPP
#define SHARE_GC_G1_G1FULLGCRESETMETADATATASK_HPP
#include "gc/g1/g1FullGCTask.hpp"
#include "gc/g1/heapRegion.hpp"

class G1FullGCResetMetadataTask : public G1FullGCTask {
  G1FullCollector* _collector;
  HeapRegionClaimer _claimer;

  class G1ResetMetadataClosure : public HeapRegionClosure {
    G1CollectedHeap* _g1h;
    G1FullCollector* _collector;

    void reset_region_metadata(HeapRegion* hr);
    // Scrub all runs of dead objects within the given region by putting filler
    // objects and updating the corresponding BOT. If update_bot_for_live is true,
    // also update the BOT for live objects.
    void scrub_skip_compacting_region(HeapRegion* hr, bool update_bot_for_live);

    void reset_skip_compacting(HeapRegion* r);

  public:
    G1ResetMetadataClosure(G1FullCollector* collector);

    bool do_heap_region(HeapRegion* hr);
  };

public:
  G1FullGCResetMetadataTask(G1FullCollector* collector) :
    G1FullGCTask("G1 Reset Metadata Task", collector),
    _collector(collector),
    _claimer(collector->workers()) { }

  void work(uint worker_id);
};

#endif // SHARE_GC_G1_G1FULLGCRESETMETADATATASK_HPP