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src/hotspot/share/gc/shared/preservedMarks.cpp

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  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 #include "precompiled.hpp"
  26 #include "gc/shared/preservedMarks.inline.hpp"
  27 #include "gc/shared/workgroup.hpp"
  28 #include "memory/allocation.inline.hpp"
  29 #include "memory/resourceArea.hpp"
  30 #include "oops/oop.inline.hpp"

  31 #include "utilities/macros.hpp"
  32 
  33 void PreservedMarks::restore() {
  34   while (!_stack.is_empty()) {
  35     const OopAndMarkWord elem = _stack.pop();
  36     elem.set_mark();
  37   }
  38   assert_empty();
  39 }
  40 
  41 void PreservedMarks::adjust_during_full_gc() {
  42   StackIterator<OopAndMarkWord, mtGC> iter(_stack);
  43   while (!iter.is_empty()) {
  44     OopAndMarkWord* elem = iter.next_addr();
  45 
  46     oop obj = elem->get_oop();
  47     if (obj->is_forwarded()) {
  48       elem->set_oop(obj->forwardee());
  49     }
  50   }




  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 #include "precompiled.hpp"
  26 #include "gc/shared/preservedMarks.inline.hpp"
  27 #include "gc/shared/workgroup.hpp"
  28 #include "memory/allocation.inline.hpp"
  29 #include "memory/resourceArea.hpp"
  30 #include "oops/oop.inline.hpp"
  31 #include "runtime/atomic.hpp"
  32 #include "utilities/macros.hpp"
  33 
  34 void PreservedMarks::restore() {
  35   while (!_stack.is_empty()) {
  36     const OopAndMarkWord elem = _stack.pop();
  37     elem.set_mark();
  38   }
  39   assert_empty();
  40 }
  41 
  42 void PreservedMarks::adjust_during_full_gc() {
  43   StackIterator<OopAndMarkWord, mtGC> iter(_stack);
  44   while (!iter.is_empty()) {
  45     OopAndMarkWord* elem = iter.next_addr();
  46 
  47     oop obj = elem->get_oop();
  48     if (obj->is_forwarded()) {
  49       elem->set_oop(obj->forwardee());
  50     }
  51   }


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