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src/share/vm/gc/cms/vmCMSOperations.cpp

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rev 8362 : [mq]: hotspot


   6  * under the terms of the GNU General Public License version 2 only, as
   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 "gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.inline.hpp"
  27 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepThread.hpp"
  28 #include "gc_implementation/concurrentMarkSweep/vmCMSOperations.hpp"
  29 #include "gc_implementation/shared/gcTimer.hpp"
  30 #include "gc_implementation/shared/gcTraceTime.hpp"
  31 #include "gc_implementation/shared/isGCActiveMark.hpp"
  32 #include "memory/gcLocker.inline.hpp"
  33 #include "runtime/interfaceSupport.hpp"
  34 #include "runtime/os.hpp"
  35 #include "utilities/dtrace.hpp"
  36 
  37 //////////////////////////////////////////////////////////
  38 // Methods in abstract class VM_CMS_Operation
  39 //////////////////////////////////////////////////////////
  40 void VM_CMS_Operation::acquire_pending_list_lock() {
  41   // The caller may block while communicating
  42   // with the SLT thread in order to acquire/release the PLL.
  43   SurrogateLockerThread* slt = ConcurrentMarkSweepThread::slt();
  44   if (slt != NULL) {
  45     slt->manipulatePLL(SurrogateLockerThread::acquirePLL);
  46   } else {
  47     SurrogateLockerThread::report_missing_slt();
  48   }
  49 }
  50 
  51 void VM_CMS_Operation::release_and_notify_pending_list_lock() {
  52   // The caller may block while communicating




   6  * under the terms of the GNU General Public License version 2 only, as
   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 "gc/cms/concurrentMarkSweepGeneration.inline.hpp"
  27 #include "gc/cms/concurrentMarkSweepThread.hpp"
  28 #include "gc/cms/vmCMSOperations.hpp"
  29 #include "gc/shared/gcLocker.inline.hpp"
  30 #include "gc/shared/gcTimer.hpp"
  31 #include "gc/shared/gcTraceTime.hpp"
  32 #include "gc/shared/isGCActiveMark.hpp"
  33 #include "runtime/interfaceSupport.hpp"
  34 #include "runtime/os.hpp"
  35 #include "utilities/dtrace.hpp"
  36 
  37 //////////////////////////////////////////////////////////
  38 // Methods in abstract class VM_CMS_Operation
  39 //////////////////////////////////////////////////////////
  40 void VM_CMS_Operation::acquire_pending_list_lock() {
  41   // The caller may block while communicating
  42   // with the SLT thread in order to acquire/release the PLL.
  43   SurrogateLockerThread* slt = ConcurrentMarkSweepThread::slt();
  44   if (slt != NULL) {
  45     slt->manipulatePLL(SurrogateLockerThread::acquirePLL);
  46   } else {
  47     SurrogateLockerThread::report_missing_slt();
  48   }
  49 }
  50 
  51 void VM_CMS_Operation::release_and_notify_pending_list_lock() {
  52   // The caller may block while communicating


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