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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * 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
 * accompanied this code).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
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#ifndef SHARE_GC_G1_G1FULLGCCOMPACTIONPOINT_HPP
#define SHARE_GC_G1_G1FULLGCCOMPACTIONPOINT_HPP

#include "memory/allocation.hpp"
#include "oops/oopsHierarchy.hpp"
#include "utilities/growableArray.hpp"
#include "utilities/pair.hpp"

class G1FullCollector;
class HeapRegion;

class G1FullGCCompactionPoint : public CHeapObj<mtGC> {
  G1FullCollector* _collector;
  HeapRegion* _current_region;
  HeapWord*   _compaction_top;
  GrowableArray<HeapRegion*>* _compaction_regions;
  GrowableArrayIterator<HeapRegion*> _compaction_region_iterator;

  bool object_will_fit(size_t size);
  void initialize_values();
  void switch_region();
  HeapRegion* next_region();
  uint find_contiguous_before(HeapRegion* hr, uint num_regions);

public:
  G1FullGCCompactionPoint(G1FullCollector* collector);
  ~G1FullGCCompactionPoint();

  bool has_regions();
  bool is_initialized();
  void initialize(HeapRegion* hr);
  void update();
  void forward(oop object, size_t size);
  uint forward_humongous(HeapRegion* hr);
  void add(HeapRegion* hr);
  void add_humongous(HeapRegion* hr);

  void remove_at_or_above(uint bottom);
  HeapRegion* current_region();

  GrowableArray<HeapRegion*>* regions();
};

#endif // SHARE_GC_G1_G1FULLGCCOMPACTIONPOINT_HPP