11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  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 
  25 #ifndef SHARE_GC_G1_HEAPREGIONREMSET_HPP
  26 #define SHARE_GC_G1_HEAPREGIONREMSET_HPP
  27 
  28 #include "gc/g1/g1CodeCacheRemSet.hpp"
  29 #include "gc/g1/g1FromCardCache.hpp"
  30 #include "gc/g1/sparsePRT.hpp"

  31 #include "utilities/bitMap.hpp"
  32 
  33 // Remembered set for a heap region.  Represent a set of "cards" that
  34 // contain pointers into the owner heap region.  Cards are defined somewhat
  35 // abstractly, in terms of what the "BlockOffsetTable" in use can parse.
  36 
  37 class G1CollectedHeap;
  38 class G1BlockOffsetTable;
  39 class G1CardLiveData;
  40 class HeapRegion;
  41 class PerRegionTable;
  42 class SparsePRT;
  43 class nmethod;
  44 
  45 // The "_coarse_map" is a bitmap with one bit for each region, where set
  46 // bits indicate that the corresponding region may contain some pointer
  47 // into the owning region.
  48 
  49 // The "_fine_grain_entries" array is an open hash table of PerRegionTables
  50 // (PRTs), indicating regions for which we're keeping the RS as a set of

  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  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 
  25 #ifndef SHARE_GC_G1_HEAPREGIONREMSET_HPP
  26 #define SHARE_GC_G1_HEAPREGIONREMSET_HPP
  27 
  28 #include "gc/g1/g1CodeCacheRemSet.hpp"
  29 #include "gc/g1/g1FromCardCache.hpp"
  30 #include "gc/g1/sparsePRT.hpp"
  31 #include "runtime/atomic.hpp"
  32 #include "utilities/bitMap.hpp"
  33 
  34 // Remembered set for a heap region.  Represent a set of "cards" that
  35 // contain pointers into the owner heap region.  Cards are defined somewhat
  36 // abstractly, in terms of what the "BlockOffsetTable" in use can parse.
  37 
  38 class G1CollectedHeap;
  39 class G1BlockOffsetTable;
  40 class G1CardLiveData;
  41 class HeapRegion;
  42 class PerRegionTable;
  43 class SparsePRT;
  44 class nmethod;
  45 
  46 // The "_coarse_map" is a bitmap with one bit for each region, where set
  47 // bits indicate that the corresponding region may contain some pointer
  48 // into the owning region.
  49 
  50 // The "_fine_grain_entries" array is an open hash table of PerRegionTables
  51 // (PRTs), indicating regions for which we're keeping the RS as a set of