src/hotspot/share/gc/g1/g1ConcurrentMarkBitMap.inline.hpp

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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#ifndef SHARE_GC_G1_G1CONCURRENTMARKBITMAP_INLINE_HPP
#define SHARE_GC_G1_G1CONCURRENTMARKBITMAP_INLINE_HPP

#include "gc/g1/g1ConcurrentMarkBitMap.hpp"

#include "gc/shared/markBitMap.inline.hpp"
#include "memory/memRegion.hpp"
#include "utilities/align.hpp"
#include "utilities/bitMap.inline.hpp"

inline bool G1CMBitMap::iterate(G1CMBitMapClosure* cl, MemRegion mr) {
  assert(!mr.is_empty(), "Does not support empty memregion to iterate over");
  assert(_covered.contains(mr),
         "Given MemRegion from " PTR_FORMAT " to " PTR_FORMAT " not contained in heap area",
         p2i(mr.start()), p2i(mr.end()));

  BitMap::idx_t const end_offset = addr_to_offset(mr.end());
  BitMap::idx_t offset = _bm.find_first_set_bit(addr_to_offset(mr.start()), end_offset);

  while (offset < end_offset) {
    HeapWord* const addr = offset_to_addr(offset);
    if (!cl->do_addr(addr)) {
      return false;
    }
    size_t const obj_size = cast_to_oop(addr)->size();
    offset = _bm.find_first_set_bit(offset + (obj_size >> _shifter), end_offset);
  }
  return true;
}

#endif // SHARE_GC_G1_G1CONCURRENTMARKBITMAP_INLINE_HPP