8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  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_G1EDENREGIONS_HPP
  26 #define SHARE_GC_G1_G1EDENREGIONS_HPP
  27 

  28 #include "gc/g1/heapRegion.hpp"
  29 #include "runtime/globals.hpp"
  30 #include "utilities/debug.hpp"
  31 
  32 class G1EdenRegions {
  33 private:
  34   int    _length;
  35   // Sum of used bytes from all retired eden regions.
  36   // I.e. updated when mutator regions are retired.
  37   volatile size_t _used_bytes;

  38 
  39 public:
  40   G1EdenRegions() : _length(0), _used_bytes(0) { }
  41 
  42   void add(HeapRegion* hr) {
  43     assert(!hr->is_eden(), "should not already be set");
  44     _length++;

  45   }
  46 
  47   void clear() { _length = 0; _used_bytes = 0; }




  48 
  49   uint length() const { return _length; }

  50 
  51   size_t used_bytes() const { return _used_bytes; }
  52 
  53   void add_used_bytes(size_t used_bytes) {
  54     _used_bytes += used_bytes;
  55   }
  56 };
  57 
  58 #endif // SHARE_GC_G1_G1EDENREGIONS_HPP

   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  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_G1EDENREGIONS_HPP
  26 #define SHARE_GC_G1_G1EDENREGIONS_HPP
  27 
  28 #include "gc/g1/g1RegionsOnNodes.hpp"
  29 #include "gc/g1/heapRegion.hpp"
  30 #include "runtime/globals.hpp"
  31 #include "utilities/debug.hpp"
  32 
  33 class G1EdenRegions {
  34 private:
  35   int    _length;
  36   // Sum of used bytes from all retired eden regions.
  37   // I.e. updated when mutator regions are retired.
  38   volatile size_t _used_bytes;
  39   G1RegionsOnNodes  _regions_on_node;
  40 
  41 public:
  42   G1EdenRegions() : _length(0), _used_bytes(0), _regions_on_node() { }
  43 
  44   virtual uint add(HeapRegion* hr) {
  45     assert(!hr->is_eden(), "should not already be set");
  46     _length++;
  47     return _regions_on_node.add(hr);
  48   }
  49 
  50   void clear() {
  51     _length = 0;
  52     _used_bytes = 0;
  53     _regions_on_node.clear();
  54   }
  55 
  56   uint length() const { return _length; }
  57   uint regions_on_node(uint node_index) const { return _regions_on_node.count(node_index); }
  58 
  59   size_t used_bytes() const { return _used_bytes; }
  60 
  61   void add_used_bytes(size_t used_bytes) {
  62     _used_bytes += used_bytes;
  63   }
  64 };
  65 
  66 #endif // SHARE_GC_G1_G1EDENREGIONS_HPP