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src/hotspot/share/gc/z/zHeapIterator.hpp

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  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 #ifndef SHARE_GC_Z_ZHEAPITERATOR_HPP
  25 #define SHARE_GC_Z_ZHEAPITERATOR_HPP
  26 
  27 #include "gc/z/zGranuleMap.hpp"
  28 #include "memory/allocation.hpp"
  29 #include "utilities/stack.hpp"
  30 
  31 class ObjectClosure;
  32 class ZHeapIteratorBitMap;
  33 
  34 class ZHeapIterator : public StackObj {
  35   template<bool Concurrent, bool Weak> friend class ZHeapIteratorRootOopClosure;
  36   template<bool VisitReferents> friend class ZHeapIteratorOopClosure;
  37 
  38 private:
  39   typedef ZGranuleMap<ZHeapIteratorBitMap*>         ZVisitMap;
  40   typedef ZGranuleMapIterator<ZHeapIteratorBitMap*> ZVisitMapIterator;
  41   typedef Stack<oop, mtGC>                          ZVisitStack;
  42 
  43   ZVisitStack _visit_stack;
  44   ZVisitMap   _visit_map;

  45 
  46   ZHeapIteratorBitMap* object_map(oop obj);
  47   void push(oop obj);
  48 
  49   template <typename RootsIterator, bool Concurrent, bool Weak> void push_roots();
  50   template <bool VisitReferents> void push_fields(oop obj);
  51   template <bool VisitReferents> void objects_do(ObjectClosure* cl);
  52 
  53 public:
  54   ZHeapIterator();
  55   ~ZHeapIterator();
  56 
  57   void objects_do(ObjectClosure* cl, bool visit_referents);
  58 };
  59 
  60 #endif // SHARE_GC_Z_ZHEAPITERATOR_HPP


  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 #ifndef SHARE_GC_Z_ZHEAPITERATOR_HPP
  25 #define SHARE_GC_Z_ZHEAPITERATOR_HPP
  26 
  27 #include "gc/z/zGranuleMap.hpp"
  28 #include "memory/allocation.hpp"
  29 #include "utilities/stack.hpp"
  30 
  31 class ObjectClosure;
  32 class ZHeapIteratorBitMap;
  33 
  34 class ZHeapIterator : public StackObj {
  35   friend class ZHeapIteratorRootOopClosure;
  36   friend class ZHeapIteratorOopClosure;
  37 
  38 private:
  39   typedef ZGranuleMap<ZHeapIteratorBitMap*>         ZVisitMap;
  40   typedef ZGranuleMapIterator<ZHeapIteratorBitMap*> ZVisitMapIterator;
  41   typedef Stack<oop, mtGC>                          ZVisitStack;
  42 
  43   ZVisitStack _visit_stack;
  44   ZVisitMap   _visit_map;
  45   const bool  _visit_referents;
  46 
  47   ZHeapIteratorBitMap* object_map(oop obj);
  48   void push(oop obj);
  49 




  50 public:
  51   ZHeapIterator(bool visit_referents);
  52   ~ZHeapIterator();
  53 
  54   void objects_do(ObjectClosure* cl);
  55 };
  56 
  57 #endif // SHARE_GC_Z_ZHEAPITERATOR_HPP
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