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src/share/vm/memory/strongRootsScope.cpp

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   7  * published by the Free Software Foundation.
   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 #include "precompiled.hpp"
  26 #include "classfile/stringTable.hpp"
  27 #include "memory/iterator.hpp"
  28 #include "memory/strongRootsScope.hpp"
  29 #include "runtime/thread.hpp"
  30 













  31 StrongRootsScope::StrongRootsScope(bool activate)
  32   : MarkScope(activate)
  33 {
  34   if (_active) {
  35     Threads::change_thread_claim_parity();
  36     // Zero the claimed high water mark in the StringTable
  37     StringTable::clear_parallel_claimed_index();
  38   }
  39 }
  40 
  41 StrongRootsScope::~StrongRootsScope() {
  42   Threads::assert_all_threads_claimed();
  43 }


   7  * published by the Free Software Foundation.
   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 #include "precompiled.hpp"
  26 #include "classfile/stringTable.hpp"
  27 #include "code/nmethod.hpp"
  28 #include "memory/strongRootsScope.hpp"
  29 #include "runtime/thread.hpp"
  30 
  31 MarkScope::MarkScope(bool activate)
  32   : _active(activate) {
  33   if (_active) {
  34     nmethod::oops_do_marking_prologue();
  35   }
  36 }
  37 
  38 MarkScope::~MarkScope() {
  39   if (_active) {
  40     nmethod::oops_do_marking_epilogue();
  41   }
  42 }
  43 
  44 StrongRootsScope::StrongRootsScope(bool activate)
  45   : MarkScope(activate) {

  46   if (_active) {
  47     Threads::change_thread_claim_parity();
  48     // Zero the claimed high water mark in the StringTable
  49     StringTable::clear_parallel_claimed_index();
  50   }
  51 }
  52 
  53 StrongRootsScope::~StrongRootsScope() {
  54   Threads::assert_all_threads_claimed();
  55 }
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