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 "classfile/stringTable.hpp"
  27 #include "code/nmethod.hpp"
  28 #include "gc/shared/strongRootsScope.hpp"
  29 #include "runtime/thread.hpp"
  30 
  31 MarkScope::MarkScope(bool activate) : _active(activate) {
  32   if (_active) {
  33     nmethod::oops_do_marking_prologue();
  34   }
  35 }
  36 
  37 MarkScope::~MarkScope() {
  38   if (_active) {
  39     nmethod::oops_do_marking_epilogue();
  40   }
  41 }
  42 
  43 StrongRootsScope::StrongRootsScope(bool activate) : MarkScope(activate) {
  44   if (_active) {
  45     Threads::change_thread_claim_parity();
  46     // Zero the claimed high water mark in the StringTable
  47     StringTable::clear_parallel_claimed_index();
  48   }
  49 }
  50 
  51 StrongRootsScope::~StrongRootsScope() {
  52   Threads::assert_all_threads_claimed();
  53 }

  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 "classfile/stringTable.hpp"
  27 #include "code/nmethod.hpp"
  28 #include "gc/shared/strongRootsScope.hpp"
  29 #include "runtime/thread.hpp"
  30 
  31 MarkScope::MarkScope() {

  32   nmethod::oops_do_marking_prologue();

  33 }
  34 
  35 MarkScope::~MarkScope() {

  36   nmethod::oops_do_marking_epilogue();

  37 }
  38 
  39 StrongRootsScope::StrongRootsScope(uint n_threads) : _n_threads(n_threads) {

  40   Threads::change_thread_claim_parity();
  41   // Zero the claimed high water mark in the StringTable
  42   StringTable::clear_parallel_claimed_index();

  43 }
  44 
  45 StrongRootsScope::~StrongRootsScope() {
  46   Threads::assert_all_threads_claimed();
  47 }