67 lines
2.5 KiB
C++
67 lines
2.5 KiB
C++
/*
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* Copyright (c) 2017, 2020, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#include "precompiled.hpp"
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#include "classfile/classLoaderData.hpp"
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#include "gc/g1/g1FullGCMarker.inline.hpp"
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#include "gc/shared/referenceProcessor.hpp"
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#include "gc/shared/taskTerminator.hpp"
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#include "gc/shared/verifyOption.hpp"
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#include "memory/iterator.inline.hpp"
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G1FullGCMarker::G1FullGCMarker(uint worker_id, PreservedMarks* preserved_stack, G1CMBitMap* bitmap) :
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_worker_id(worker_id),
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_bitmap(bitmap),
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_oop_stack(),
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_objarray_stack(),
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_preserved_stack(preserved_stack),
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_mark_closure(worker_id, this, G1CollectedHeap::heap()->ref_processor_stw()),
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_verify_closure(VerifyOption_G1UseFullMarking),
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_stack_closure(this),
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_cld_closure(mark_closure(), ClassLoaderData::_claim_strong) {
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_oop_stack.initialize();
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_objarray_stack.initialize();
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}
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G1FullGCMarker::~G1FullGCMarker() {
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assert(is_empty(), "Must be empty at this point");
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}
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void G1FullGCMarker::complete_marking(OopQueueSet* oop_stacks,
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ObjArrayTaskQueueSet* array_stacks,
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TaskTerminator* terminator) {
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do {
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drain_stack();
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ObjArrayTask steal_array;
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if (array_stacks->steal(_worker_id, steal_array)) {
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follow_array_chunk(objArrayOop(steal_array.obj()), steal_array.index());
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} else {
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oop steal_oop;
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if (oop_stacks->steal(_worker_id, steal_oop)) {
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follow_object(steal_oop);
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}
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}
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} while (!is_empty() || !terminator->offer_termination());
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}
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