jdk8-mips64-public/hotspot: src/share/vm/gc_implementation/parallelScavenge/psTasks.cpp@aed758eda82a (annotated)

src/share/vm/gc_implementation/parallelScavenge/psTasks.cpp@aed758eda82a (annotated)

src/share/vm/gc_implementation/parallelScavenge/psTasks.cpp

Fri, 07 Sep 2012 12:04:16 -0400

author: coleenp
date: Fri, 07 Sep 2012 12:04:16 -0400
changeset 4047: aed758eda82a
parent 4037: da91efe96a93
child 4128: f81a7c0c618d
permissions: -rw-r--r--

7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
Summary: Simple renaming to be consistent with instanceKlass->InstanceKlass renaming
Reviewed-by: stefank, jmasa

 /*
  * Copyright (c) 2002, 2012, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  *
  */
 #include "precompiled.hpp"
 #include "classfile/systemDictionary.hpp"
 #include "code/codeCache.hpp"
 #include "gc_implementation/parallelScavenge/cardTableExtension.hpp"
 #include "gc_implementation/parallelScavenge/gcTaskManager.hpp"
 #include "gc_implementation/parallelScavenge/psMarkSweep.hpp"
 #include "gc_implementation/parallelScavenge/psPromotionManager.hpp"
 #include "gc_implementation/parallelScavenge/psPromotionManager.inline.hpp"
 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp"
 #include "gc_implementation/parallelScavenge/psTasks.hpp"
 #include "memory/iterator.hpp"
 #include "memory/universe.hpp"
 #include "oops/oop.inline.hpp"
 #include "oops/oop.psgc.inline.hpp"
 #include "runtime/fprofiler.hpp"
 #include "runtime/thread.hpp"
 #include "runtime/vmThread.hpp"
 #include "services/management.hpp"
 #include "utilities/taskqueue.hpp"
 //
 // ScavengeRootsTask
 //
 void ScavengeRootsTask::do_it(GCTaskManager* manager, uint which) {
   assert(Universe::heap()->is_gc_active(), "called outside gc");
   PSPromotionManager* pm = PSPromotionManager::gc_thread_promotion_manager(which);
   PSScavengeRootsClosure roots_closure(pm);
   PSPromoteRootsClosure  roots_to_old_closure(pm);
   switch (_root_type) {
     case universe:
       Universe::oops_do(&roots_closure);
       break;
     case jni_handles:
       JNIHandles::oops_do(&roots_closure);
       break;
     case threads:
     {
       ResourceMark rm;
       Threads::oops_do(&roots_closure, NULL);
     }
     break;
     case object_synchronizer:
       ObjectSynchronizer::oops_do(&roots_closure);
       break;
     case flat_profiler:
       FlatProfiler::oops_do(&roots_closure);
       break;
     case system_dictionary:
       {
       SystemDictionary::oops_do(&roots_closure);
         // Move this to another root_type?
         PSScavengeKlassClosure klass_closure(pm);
         ClassLoaderDataGraph::oops_do(&roots_closure, &klass_closure, false);
       }
       break;
     case management:
       Management::oops_do(&roots_closure);
       break;
     case jvmti:
       JvmtiExport::oops_do(&roots_closure);
       break;
     case code_cache:
       {
         CodeBlobToOopClosure each_scavengable_code_blob(&roots_to_old_closure, /*do_marking=*/ true);
         CodeCache::scavenge_root_nmethods_do(&each_scavengable_code_blob);
       }
       break;
     default:
       fatal("Unknown root type");
   }
   // Do the real work
   pm->drain_stacks(false);
 }
 //
 // ThreadRootsTask
 //
 void ThreadRootsTask::do_it(GCTaskManager* manager, uint which) {
   assert(Universe::heap()->is_gc_active(), "called outside gc");
   PSPromotionManager* pm = PSPromotionManager::gc_thread_promotion_manager(which);
   PSScavengeRootsClosure roots_closure(pm);
   CodeBlobToOopClosure roots_in_blobs(&roots_closure, /*do_marking=*/ true);
   if (_java_thread != NULL)
     _java_thread->oops_do(&roots_closure, &roots_in_blobs);
   if (_vm_thread != NULL)
     _vm_thread->oops_do(&roots_closure, &roots_in_blobs);
   // Do the real work
   pm->drain_stacks(false);
 }
 //
 // StealTask
 //
 StealTask::StealTask(ParallelTaskTerminator* t) :
   _terminator(t) {}
 void StealTask::do_it(GCTaskManager* manager, uint which) {
   assert(Universe::heap()->is_gc_active(), "called outside gc");
   PSPromotionManager* pm =
     PSPromotionManager::gc_thread_promotion_manager(which);
   pm->drain_stacks(true);
   guarantee(pm->stacks_empty(),
             "stacks should be empty at this point");
   int random_seed = 17;
   while(true) {
     StarTask p;
     if (PSPromotionManager::steal_depth(which, &random_seed, p)) {
       TASKQUEUE_STATS_ONLY(pm->record_steal(p));
       pm->process_popped_location_depth(p);
       pm->drain_stacks_depth(true);
     } else {
       if (terminator()->offer_termination()) {
         break;
       }
     }
   }
   guarantee(pm->stacks_empty(), "stacks should be empty at this point");
 }
 //
 // SerialOldToYoungRootsTask
 //
 void SerialOldToYoungRootsTask::do_it(GCTaskManager* manager, uint which) {
   assert(_gen != NULL, "Sanity");
   assert(_gen->object_space()->contains(_gen_top) || _gen_top == _gen->object_space()->top(), "Sanity");
   {
     PSPromotionManager* pm = PSPromotionManager::gc_thread_promotion_manager(which);
     assert(Universe::heap()->kind() == CollectedHeap::ParallelScavengeHeap, "Sanity");
     CardTableExtension* card_table = (CardTableExtension *)Universe::heap()->barrier_set();
     // FIX ME! Assert that card_table is the type we believe it to be.
     card_table->scavenge_contents(_gen->start_array(),
                                   _gen->object_space(),
                                   _gen_top,
                                   pm);
     // Do the real work
     pm->drain_stacks(false);
   }
 }
 //
 // OldToYoungRootsTask
 //
 void OldToYoungRootsTask::do_it(GCTaskManager* manager, uint which) {
   assert(_gen != NULL, "Sanity");
   assert(_gen->object_space()->contains(_gen_top) || _gen_top == _gen->object_space()->top(), "Sanity");
   assert(_stripe_number < ParallelGCThreads, "Sanity");
   {
     PSPromotionManager* pm = PSPromotionManager::gc_thread_promotion_manager(which);
     assert(Universe::heap()->kind() == CollectedHeap::ParallelScavengeHeap, "Sanity");
     CardTableExtension* card_table = (CardTableExtension *)Universe::heap()->barrier_set();
     // FIX ME! Assert that card_table is the type we believe it to be.
     card_table->scavenge_contents_parallel(_gen->start_array(),
                                            _gen->object_space(),
                                            _gen_top,
                                            pm,
                                            _stripe_number,
                                            _stripe_total);
     // Do the real work
     pm->drain_stacks(false);
   }
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/gc_implementation/parallelScavenge/psTasks.cpp@aed758eda82a (annotated)

src/share/vm/gc_implementation/parallelScavenge/psTasks.cpp