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src/hotspot/share/gc/shenandoah/shenandoahParallelCleaning.cpp

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  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/shenandoah/shenandoahClosures.inline.hpp"
  29 #include "gc/shenandoah/shenandoahCodeRoots.hpp"
  30 #include "gc/shenandoah/shenandoahEvacOOMHandler.hpp"
  31 #include "gc/shenandoah/shenandoahParallelCleaning.hpp"
  32 #include "runtime/safepoint.hpp"
  33 
  34 ShenandoahClassUnloadingTask::ShenandoahClassUnloadingTask(BoolObjectClosure* is_alive,
  35                                                            uint num_workers,
  36                                                            bool unloading_occurred) :
  37   AbstractGangTask("Parallel Class Unloading Task"),
  38   _unloading_occurred(unloading_occurred),
  39   _code_cache_task(num_workers, is_alive, unloading_occurred),
  40   _klass_cleaning_task() {
  41   assert(SafepointSynchronize::is_at_safepoint(), "Must be at a safepoint");
  42 }
  43 
  44 void ShenandoahClassUnloadingTask::work(uint worker_id) {
  45   _code_cache_task.work(worker_id);
  46   // Clean all klasses that were not unloaded.
  47   // The weak metadata in klass doesn't need to be
  48   // processed if there was no unloading.
  49   if (_unloading_occurred) {
  50     _klass_cleaning_task.work();


  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/shenandoah/shenandoahClosures.inline.hpp"
  29 #include "gc/shenandoah/shenandoahCodeRoots.hpp"

  30 #include "gc/shenandoah/shenandoahParallelCleaning.hpp"
  31 #include "runtime/safepoint.hpp"
  32 
  33 ShenandoahClassUnloadingTask::ShenandoahClassUnloadingTask(BoolObjectClosure* is_alive,
  34                                                            uint num_workers,
  35                                                            bool unloading_occurred) :
  36   AbstractGangTask("Parallel Class Unloading Task"),
  37   _unloading_occurred(unloading_occurred),
  38   _code_cache_task(num_workers, is_alive, unloading_occurred),
  39   _klass_cleaning_task() {
  40   assert(SafepointSynchronize::is_at_safepoint(), "Must be at a safepoint");
  41 }
  42 
  43 void ShenandoahClassUnloadingTask::work(uint worker_id) {
  44   _code_cache_task.work(worker_id);
  45   // Clean all klasses that were not unloaded.
  46   // The weak metadata in klass doesn't need to be
  47   // processed if there was no unloading.
  48   if (_unloading_occurred) {
  49     _klass_cleaning_task.work();
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