99 lines
3.5 KiB
C++
99 lines
3.5 KiB
C++
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/*
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* Copyright (c) 2017, 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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#ifndef SHARE_GC_G1_G1FULLCOLLECTOR_HPP
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#define SHARE_GC_G1_G1FULLCOLLECTOR_HPP
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#include "gc/g1/g1FullGCCompactionPoint.hpp"
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#include "gc/g1/g1FullGCMarker.hpp"
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#include "gc/g1/g1FullGCOopClosures.hpp"
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#include "gc/shared/preservedMarks.hpp"
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#include "gc/shared/referenceProcessor.hpp"
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#include "gc/shared/taskqueue.hpp"
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#include "memory/allocation.hpp"
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class AbstractGangTask;
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class G1CMBitMap;
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class G1FullGCMarker;
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class G1FullGCScope;
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class G1FullGCCompactionPoint;
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class ReferenceProcessor;
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// The G1FullCollector holds data associated with the current Full GC.
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class G1FullCollector : StackObj {
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G1FullGCScope* _scope;
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uint _num_workers;
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G1FullGCMarker** _markers;
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G1FullGCCompactionPoint** _compaction_points;
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G1CMBitMap* _mark_bitmap;
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OopQueueSet _oop_queue_set;
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ObjArrayTaskQueueSet _array_queue_set;
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PreservedMarksSet _preserved_marks_set;
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ReferenceProcessor* _reference_processor;
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G1FullGCCompactionPoint _serial_compaction_point;
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G1IsAliveClosure _is_alive;
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ReferenceProcessorIsAliveMutator _is_alive_mutator;
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public:
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G1FullCollector(G1FullGCScope* scope,
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ReferenceProcessor* reference_processor,
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G1CMBitMap* mark_bitmap,
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uint workers);
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~G1FullCollector();
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void prepare_collection();
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void collect();
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void complete_collection();
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G1FullGCScope* scope() { return _scope; }
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uint workers() { return _num_workers; }
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G1FullGCMarker* marker(uint id) { return _markers[id]; }
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G1FullGCCompactionPoint* compaction_point(uint id) { return _compaction_points[id]; }
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G1CMBitMap* mark_bitmap() { return _mark_bitmap; }
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OopQueueSet* oop_queue_set() { return &_oop_queue_set; }
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ObjArrayTaskQueueSet* array_queue_set() { return &_array_queue_set; }
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PreservedMarksSet* preserved_mark_set() { return &_preserved_marks_set; }
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ReferenceProcessor* reference_processor() { return _reference_processor; }
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G1FullGCCompactionPoint* serial_compaction_point() { return &_serial_compaction_point; }
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private:
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void phase1_mark_live_objects();
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void phase2_prepare_compaction();
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void phase3_adjust_pointers();
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void phase4_do_compaction();
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void restore_marks();
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void verify_after_marking();
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void run_task(AbstractGangTask* task);
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// Prepare compaction extension support.
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void prepare_compaction_ext();
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void prepare_compaction_common();
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};
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#endif // SHARE_GC_G1_G1FULLCOLLECTOR_HPP
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