author | pliden |
Wed, 19 Sep 2018 19:12:18 +0200 | |
changeset 51803 | a16777c0a6c5 |
parent 51590 | 3aaf039a3636 |
child 52140 | 3a168f782e80 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2015, 2018, 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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#ifndef SHARE_GC_Z_ZROOTSITERATOR_HPP |
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#define SHARE_GC_Z_ZROOTSITERATOR_HPP |
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#include "gc/shared/oopStorageParState.hpp" |
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#include "memory/allocation.hpp" |
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#include "memory/iterator.hpp" |
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#include "runtime/thread.hpp" |
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#include "utilities/globalDefinitions.hpp" |
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class ZRootsIteratorClosure : public OopClosure, public ThreadClosure { |
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virtual void do_thread(Thread* thread) { |
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thread->oops_do(this, NULL); |
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} |
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}; |
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typedef OopStorage::ParState<false /* concurrent */, false /* is_const */> ZOopStorageIterator; |
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typedef OopStorage::ParState<true /* concurrent */, false /* is_const */> ZConcurrentOopStorageIterator; |
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template <typename T, void (T::*F)(ZRootsIteratorClosure*)> |
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class ZSerialOopsDo { |
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private: |
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T* const _iter; |
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volatile bool _claimed; |
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public: |
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ZSerialOopsDo(T* iter); |
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void oops_do(ZRootsIteratorClosure* cl); |
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}; |
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template <typename T, void (T::*F)(ZRootsIteratorClosure*)> |
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class ZParallelOopsDo { |
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private: |
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T* const _iter; |
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volatile bool _completed; |
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public: |
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ZParallelOopsDo(T* iter); |
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void oops_do(ZRootsIteratorClosure* cl); |
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}; |
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template <typename T, void (T::*F)(BoolObjectClosure*, ZRootsIteratorClosure*)> |
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class ZSerialWeakOopsDo { |
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private: |
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T* const _iter; |
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volatile bool _claimed; |
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public: |
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ZSerialWeakOopsDo(T* iter); |
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void weak_oops_do(BoolObjectClosure* is_alive, ZRootsIteratorClosure* cl); |
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}; |
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template <typename T, void (T::*F)(BoolObjectClosure*, ZRootsIteratorClosure*)> |
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class ZParallelWeakOopsDo { |
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private: |
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T* const _iter; |
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volatile bool _completed; |
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public: |
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ZParallelWeakOopsDo(T* iter); |
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void weak_oops_do(BoolObjectClosure* is_alive, ZRootsIteratorClosure* cl); |
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}; |
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class ZRootsIterator { |
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private: |
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ZOopStorageIterator _jni_handles_iter; |
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void do_universe(ZRootsIteratorClosure* cl); |
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void do_jni_handles(ZRootsIteratorClosure* cl); |
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void do_object_synchronizer(ZRootsIteratorClosure* cl); |
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void do_management(ZRootsIteratorClosure* cl); |
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void do_jvmti_export(ZRootsIteratorClosure* cl); |
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void do_jvmti_weak_export(ZRootsIteratorClosure* cl); |
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void do_system_dictionary(ZRootsIteratorClosure* cl); |
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void do_class_loader_data_graph(ZRootsIteratorClosure* cl); |
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void do_threads(ZRootsIteratorClosure* cl); |
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void do_code_cache(ZRootsIteratorClosure* cl); |
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ZSerialOopsDo<ZRootsIterator, &ZRootsIterator::do_universe> _universe; |
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ZSerialOopsDo<ZRootsIterator, &ZRootsIterator::do_object_synchronizer> _object_synchronizer; |
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ZSerialOopsDo<ZRootsIterator, &ZRootsIterator::do_management> _management; |
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ZSerialOopsDo<ZRootsIterator, &ZRootsIterator::do_jvmti_export> _jvmti_export; |
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ZSerialOopsDo<ZRootsIterator, &ZRootsIterator::do_jvmti_weak_export> _jvmti_weak_export; |
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ZSerialOopsDo<ZRootsIterator, &ZRootsIterator::do_system_dictionary> _system_dictionary; |
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ZParallelOopsDo<ZRootsIterator, &ZRootsIterator::do_jni_handles> _jni_handles; |
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ZParallelOopsDo<ZRootsIterator, &ZRootsIterator::do_class_loader_data_graph> _class_loader_data_graph; |
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ZParallelOopsDo<ZRootsIterator, &ZRootsIterator::do_threads> _threads; |
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ZParallelOopsDo<ZRootsIterator, &ZRootsIterator::do_code_cache> _code_cache; |
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public: |
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ZRootsIterator(); |
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~ZRootsIterator(); |
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void oops_do(ZRootsIteratorClosure* cl, bool visit_jvmti_weak_export = false); |
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}; |
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class ZWeakRootsIterator { |
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private: |
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void do_jvmti_weak_export(BoolObjectClosure* is_alive, ZRootsIteratorClosure* cl); |
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void do_jfr_weak(BoolObjectClosure* is_alive, ZRootsIteratorClosure* cl); |
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ZSerialWeakOopsDo<ZWeakRootsIterator, &ZWeakRootsIterator::do_jvmti_weak_export> _jvmti_weak_export; |
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ZSerialWeakOopsDo<ZWeakRootsIterator, &ZWeakRootsIterator::do_jfr_weak> _jfr_weak; |
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ZWeakRootsIterator(); |
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~ZWeakRootsIterator(); |
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void weak_oops_do(BoolObjectClosure* is_alive, ZRootsIteratorClosure* cl); |
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void oops_do(ZRootsIteratorClosure* cl); |
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}; |
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class ZConcurrentWeakRootsIterator { |
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private: |
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ZConcurrentOopStorageIterator _vm_weak_handles_iter; |
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ZConcurrentOopStorageIterator _jni_weak_handles_iter; |
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ZConcurrentOopStorageIterator _string_table_iter; |
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void do_vm_weak_handles(ZRootsIteratorClosure* cl); |
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void do_jni_weak_handles(ZRootsIteratorClosure* cl); |
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void do_string_table(ZRootsIteratorClosure* cl); |
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ZParallelOopsDo<ZConcurrentWeakRootsIterator, &ZConcurrentWeakRootsIterator::do_vm_weak_handles> _vm_weak_handles; |
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ZParallelOopsDo<ZConcurrentWeakRootsIterator, &ZConcurrentWeakRootsIterator::do_jni_weak_handles> _jni_weak_handles; |
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ZParallelOopsDo<ZConcurrentWeakRootsIterator, &ZConcurrentWeakRootsIterator::do_string_table> _string_table; |
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public: |
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ZConcurrentWeakRootsIterator(); |
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~ZConcurrentWeakRootsIterator(); |
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void oops_do(ZRootsIteratorClosure* cl); |
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}; |
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class ZThreadRootsIterator { |
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void do_threads(ZRootsIteratorClosure* cl); |
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ZParallelOopsDo<ZThreadRootsIterator, &ZThreadRootsIterator::do_threads> _threads; |
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ZThreadRootsIterator(); |
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~ZThreadRootsIterator(); |
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void oops_do(ZRootsIteratorClosure* cl); |
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}; |
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#endif // SHARE_GC_Z_ZROOTSITERATOR_HPP |