author | zgu |
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changeset 55428 | e9da3a44a7ed |
parent 55395 | 9c6d907cefac |
child 55444 | 6a7d6b6bbd78 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2015, 2019, Red Hat, Inc. All rights reserved. |
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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_SHENANDOAH_SHENANDOAHROOTPROCESSOR_HPP |
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#define SHARE_GC_SHENANDOAH_SHENANDOAHROOTPROCESSOR_HPP |
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#include "code/codeCache.hpp" |
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#include "gc/shared/oopStorageParState.hpp" |
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#include "gc/shenandoah/shenandoahCodeRoots.hpp" |
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#include "gc/shenandoah/shenandoahHeap.hpp" |
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#include "gc/shenandoah/shenandoahPhaseTimings.hpp" |
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#include "gc/shared/strongRootsScope.hpp" |
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#include "gc/shared/weakProcessor.hpp" |
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#include "gc/shared/weakProcessorPhaseTimes.hpp" |
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#include "gc/shared/workgroup.hpp" |
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#include "memory/allocation.hpp" |
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#include "memory/iterator.hpp" |
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class ShenandoahSerialRoot { |
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typedef void (*OopsDo)(OopClosure*); |
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private: |
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volatile bool _claimed; |
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const OopsDo _oops_do; |
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const ShenandoahPhaseTimings::GCParPhases _phase; |
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public: |
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ShenandoahSerialRoot(OopsDo oops_do, ShenandoahPhaseTimings::GCParPhases); |
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void oops_do(OopClosure* cl, uint worker_id); |
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}; |
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class ShenandoahSerialRoots { |
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ShenandoahSerialRoot _universe_root; |
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ShenandoahSerialRoot _object_synchronizer_root; |
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ShenandoahSerialRoot _management_root; |
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ShenandoahSerialRoot _system_dictionary_root; |
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ShenandoahSerialRoot _jvmti_root; |
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ShenandoahSerialRoots(); |
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void oops_do(OopClosure* cl, uint worker_id); |
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}; |
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template <bool CONCURRENT> |
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class ShenandoahJNIHandleRoots { |
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OopStorage::ParState<CONCURRENT, false /* is_const */> _itr; |
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ShenandoahJNIHandleRoots(); |
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template <typename T> |
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void oops_do(T* cl, uint worker_id = 0); |
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}; |
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class ShenandoahThreadRoots { |
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const bool _is_par; |
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ShenandoahThreadRoots(bool is_par); |
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~ShenandoahThreadRoots(); |
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void oops_do(OopClosure* oops_cl, CodeBlobClosure* code_cl, uint worker_id); |
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void threads_do(ThreadClosure* tc, uint worker_id); |
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}; |
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class ShenandoahWeakRoots { |
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WeakProcessorPhaseTimes _process_timings; |
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WeakProcessor::Task _task; |
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ShenandoahWeakRoots(uint n_workers); |
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~ShenandoahWeakRoots(); |
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template <typename IsAlive, typename KeepAlive> |
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void oops_do(IsAlive* is_alive, KeepAlive* keep_alive, uint worker_id); |
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}; |
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class ShenandoahStringDedupRoots { |
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ShenandoahStringDedupRoots(); |
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~ShenandoahStringDedupRoots(); |
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void oops_do(BoolObjectClosure* is_alive, OopClosure* keep_alive, uint worker_id); |
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}; |
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template <typename ITR> |
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class ShenandoahCodeCacheRoots { |
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ITR _coderoots_iterator; |
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ShenandoahCodeCacheRoots(); |
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~ShenandoahCodeCacheRoots(); |
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void code_blobs_do(CodeBlobClosure* blob_cl, uint worker_id); |
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}; |
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class ShenandoahClassLoaderDataRoots { |
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ShenandoahClassLoaderDataRoots(); |
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void clds_do(CLDClosure* strong_clds, CLDClosure* weak_clds, uint worker_id); |
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}; |
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class ShenandoahRootProcessor : public StackObj { |
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private: |
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ShenandoahHeap* const _heap; |
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const ShenandoahPhaseTimings::Phase _phase; |
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public: |
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ShenandoahRootProcessor(ShenandoahPhaseTimings::Phase phase); |
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~ShenandoahRootProcessor(); |
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ShenandoahHeap* heap() const { return _heap; } |
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}; |
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template <typename ITR> |
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class ShenandoahRootScanner : public ShenandoahRootProcessor { |
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ShenandoahSerialRoots _serial_roots; |
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ShenandoahJNIHandleRoots<false /*concurrent*/> _jni_roots; |
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ShenandoahClassLoaderDataRoots _cld_roots; |
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ShenandoahThreadRoots _thread_roots; |
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ShenandoahCodeCacheRoots<ITR> _code_roots; |
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public: |
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ShenandoahRootScanner(uint n_workers, ShenandoahPhaseTimings::Phase phase); |
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// Apply oops, clds and blobs to all strongly reachable roots in the system, |
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// during class unloading cycle |
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void strong_roots_do(uint worker_id, OopClosure* cl); |
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void strong_roots_do(uint worker_id, OopClosure* oops, CLDClosure* clds, CodeBlobClosure* code, ThreadClosure* tc = NULL); |
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// Apply oops, clds and blobs to all strongly reachable roots and weakly reachable |
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// roots when class unloading is disabled during this cycle |
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void roots_do(uint worker_id, OopClosure* cl); |
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void roots_do(uint worker_id, OopClosure* oops, CLDClosure* clds, CodeBlobClosure* code, ThreadClosure* tc = NULL); |
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// For heap object iteration |
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void roots_do_unchecked(OopClosure* cl); |
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void strong_roots_do_unchecked(OopClosure* cl); |
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}; |
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typedef ShenandoahRootScanner<ShenandoahAllCodeRootsIterator> ShenandoahAllRootScanner; |
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typedef ShenandoahRootScanner<ShenandoahCsetCodeRootsIterator> ShenandoahCSetRootScanner; |
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// Evacuate all roots at a safepoint |
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class ShenandoahRootEvacuator : public ShenandoahRootProcessor { |
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private: |
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ShenandoahSerialRoots _serial_roots; |
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ShenandoahJNIHandleRoots<false /*concurrent*/> _jni_roots; |
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ShenandoahClassLoaderDataRoots _cld_roots; |
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ShenandoahThreadRoots _thread_roots; |
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ShenandoahWeakRoots _weak_roots; |
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ShenandoahStringDedupRoots _dedup_roots; |
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ShenandoahCodeCacheRoots<ShenandoahCsetCodeRootsIterator> _code_roots; |
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bool _include_concurrent_roots; |
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|
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public: |
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ShenandoahRootEvacuator(uint n_workers, ShenandoahPhaseTimings::Phase phase, bool include_concurrent_roots); |
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|
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void roots_do(uint worker_id, OopClosure* oops); |
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}; |
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// Update all roots at a safepoint |
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class ShenandoahRootUpdater : public ShenandoahRootProcessor { |
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private: |
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ShenandoahSerialRoots _serial_roots; |
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ShenandoahJNIHandleRoots<false /*concurrent*/> _jni_roots; |
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ShenandoahClassLoaderDataRoots _cld_roots; |
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ShenandoahThreadRoots _thread_roots; |
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ShenandoahWeakRoots _weak_roots; |
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ShenandoahStringDedupRoots _dedup_roots; |
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ShenandoahCodeCacheRoots<ShenandoahCsetCodeRootsIterator> _code_roots; |
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const bool _update_code_cache; |
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public: |
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ShenandoahRootUpdater(uint n_workers, ShenandoahPhaseTimings::Phase phase, bool update_code_cache); |
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|
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template<typename IsAlive, typename KeepAlive> |
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void roots_do(uint worker_id, IsAlive* is_alive, KeepAlive* keep_alive); |
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}; |
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// Adjuster all roots at a safepoint during full gc |
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class ShenandoahRootAdjuster : public ShenandoahRootProcessor { |
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private: |
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ShenandoahSerialRoots _serial_roots; |
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ShenandoahJNIHandleRoots<false /*concurrent*/> _jni_roots; |
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ShenandoahClassLoaderDataRoots _cld_roots; |
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ShenandoahThreadRoots _thread_roots; |
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ShenandoahWeakRoots _weak_roots; |
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ShenandoahStringDedupRoots _dedup_roots; |
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ShenandoahCodeCacheRoots<ShenandoahAllCodeRootsIterator> _code_roots; |
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|
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ShenandoahRootAdjuster(uint n_workers, ShenandoahPhaseTimings::Phase phase); |
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void roots_do(uint worker_id, OopClosure* oops); |
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}; |
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#endif // SHARE_GC_SHENANDOAH_SHENANDOAHROOTPROCESSOR_HPP |