| /* |
| * Copyright (c) 2017, 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. |
| * |
| */ |
| |
| #ifndef SHARE_GC_G1_G1FULLGCPREPARETASK_HPP |
| #define SHARE_GC_G1_G1FULLGCPREPARETASK_HPP |
| |
| #include "gc/g1/g1FullGCCompactionPoint.hpp" |
| #include "gc/g1/g1FullGCScope.hpp" |
| #include "gc/g1/g1FullGCTask.hpp" |
| #include "gc/g1/g1RootProcessor.hpp" |
| #include "gc/g1/g1StringDedup.hpp" |
| #include "gc/g1/heapRegionManager.hpp" |
| #include "gc/shared/referenceProcessor.hpp" |
| |
| class G1CMBitMap; |
| |
| class G1FullGCPrepareTask : public G1FullGCTask { |
| protected: |
| volatile bool _freed_regions; |
| HeapRegionClaimer _hrclaimer; |
| |
| void set_freed_regions(); |
| |
| public: |
| G1FullGCPrepareTask(G1FullCollector* collector); |
| void work(uint worker_id); |
| void prepare_serial_compaction(); |
| bool has_freed_regions(); |
| |
| protected: |
| class G1CalculatePointersClosure : public HeapRegionClosure { |
| protected: |
| G1CollectedHeap* _g1h; |
| G1CMBitMap* _bitmap; |
| G1FullGCCompactionPoint* _cp; |
| uint _humongous_regions_removed; |
| |
| virtual void prepare_for_compaction(HeapRegion* hr); |
| void prepare_for_compaction_work(G1FullGCCompactionPoint* cp, HeapRegion* hr); |
| void free_humongous_region(HeapRegion* hr); |
| void reset_region_metadata(HeapRegion* hr); |
| |
| public: |
| G1CalculatePointersClosure(G1CMBitMap* bitmap, |
| G1FullGCCompactionPoint* cp); |
| |
| void update_sets(); |
| bool do_heap_region(HeapRegion* hr); |
| bool freed_regions(); |
| }; |
| |
| class G1PrepareCompactLiveClosure : public StackObj { |
| G1FullGCCompactionPoint* _cp; |
| |
| public: |
| G1PrepareCompactLiveClosure(G1FullGCCompactionPoint* cp); |
| size_t apply(oop object); |
| }; |
| |
| class G1RePrepareClosure : public StackObj { |
| G1FullGCCompactionPoint* _cp; |
| HeapRegion* _current; |
| |
| public: |
| G1RePrepareClosure(G1FullGCCompactionPoint* hrcp, |
| HeapRegion* hr) : |
| _cp(hrcp), |
| _current(hr) { } |
| |
| size_t apply(oop object); |
| }; |
| }; |
| |
| #endif // SHARE_GC_G1_G1FULLGCPREPARETASK_HPP |