jdk-24/src/hotspot/share/gc/shenandoah/shenandoahConcurrentMark.hpp
2021-01-14 17:42:52 +00:00

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/*
* Copyright (c) 2013, 2021, Red Hat, Inc. 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
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#ifndef SHARE_GC_SHENANDOAH_SHENANDOAHCONCURRENTMARK_HPP
#define SHARE_GC_SHENANDOAH_SHENANDOAHCONCURRENTMARK_HPP
#include "gc/shared/taskqueue.hpp"
#include "gc/shared/taskTerminator.hpp"
#include "gc/shenandoah/shenandoahMark.hpp"
#include "gc/shenandoah/shenandoahOopClosures.hpp"
#include "gc/shenandoah/shenandoahTaskqueue.hpp"
class ShenandoahStrDedupQueue;
class ShenandoahReferenceProcessor;
class ShenandoahConcurrentMark: public ShenandoahMark {
friend class ShenandoahConcurrentMarkingTask;
friend class ShenandoahFinalMarkingTask;
public:
ShenandoahConcurrentMark();
// When concurrent stack processing is not supported
void mark_stw_roots();
void mark_concurrent_roots();
// Concurrent mark
void concurrent_mark();
// Finish mark at a safepoint
void finish_mark();
static void cancel();
// TODO: where to put them
static void update_roots(ShenandoahPhaseTimings::Phase root_phase);
static void update_thread_roots(ShenandoahPhaseTimings::Phase root_phase);
private:
void finish_mark_work();
};
#endif // SHARE_GC_SHENANDOAH_SHENANDOAHCONCURRENTMARK_HPP