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 
  26 #include "precompiled.hpp"
  27 
  28 #include "gc/shared/markBitMap.inline.hpp"

  29 #include "gc/shenandoah/shenandoahObjectMarker.hpp"
  30 
  31   bool ShenandoahObjectMarker::init() {
  32    assert(SafepointSynchronize::is_at_safepoint(), "safe iteration is only available during safepoints");
  33    // Bailout if failed to commit aux bitmap
  34    if (!_heap->commit_aux_bitmap()) {
  35      _bit_map = NULL;
  36      return false;
  37    }
  38    _bit_map->clear();
  39    return true;
  40  }
  41 
  42  void ShenandoahObjectMarker::done() {
  43    if (_bit_map != NULL) {
  44      _heap->uncommit_aux_bit_map();
  45    }
  46    delete this;
  47  }
  48 
  49  bool ShenandoahObjectMarker::mark(oop o) {
  50    assert(_bit_map != NULL, "Should have been bailed out");
  51    if (_bit_map->is_marked(o)) return false;
  52    _bit_map->mark(o);
  53    return true;
  54  }
  55 
  56  bool ShenandoahObjectMarker::visited(oop o) {
  57    assert(_bit_map != NULL, "Should have been bailed out");
  58    return _bit_map->is_marked(o);
  59  }

   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 
  26 #include "precompiled.hpp"
  27 
  28 #include "gc/shared/markBitMap.inline.hpp"
  29 #include "gc/shenandoah/shenandoahHeap.hpp"
  30 #include "gc/shenandoah/shenandoahObjectMarker.hpp"
  31 
  32 bool ShenandoahObjectMarker::init() {
  33   assert(SafepointSynchronize::is_at_safepoint(), "safe iteration is only available during safepoints");
  34   // Bailout if failed to commit aux bitmap
  35   if (!_heap->commit_aux_bitmap()) {
  36     _bit_map = NULL;
  37     return false;
  38   }
  39   _bit_map->clear();
  40   return true;
  41 }
  42 
  43 void ShenandoahObjectMarker::done() {
  44   if (_bit_map != NULL) {
  45     _heap->uncommit_aux_bit_map();
  46   }
  47   delete this;
  48 }
  49 
  50 bool ShenandoahObjectMarker::mark(oop o) {
  51   assert(_bit_map != NULL, "Should have been bailed out");
  52   if (_bit_map->is_marked(o)) return false;
  53   _bit_map->mark(o);
  54   return true;
  55 }
  56 
  57 bool ShenandoahObjectMarker::marked(oop o) {
  58   assert(_bit_map != NULL, "Should have been bailed out");
  59   return _bit_map->is_marked(o);
  60 }