author | pliden |
Mon, 18 Mar 2019 11:50:40 +0100 | |
changeset 54167 | d0d26fc836dd |
parent 54164 | c585ef187216 |
child 58066 | 8407928b9fe5 |
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_ZMARK_HPP |
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#define SHARE_GC_Z_ZMARK_HPP |
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#include "gc/z/zMarkStack.hpp" |
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#include "gc/z/zMarkStackAllocator.hpp" |
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#include "gc/z/zMarkTerminate.hpp" |
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#include "oops/oopsHierarchy.hpp" |
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#include "utilities/globalDefinitions.hpp" |
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class Thread; |
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class ZMarkCache; |
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class ZPageTable; |
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class ZWorkers; |
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class ZMark { |
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friend class ZMarkRootsTask; |
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friend class ZMarkTask; |
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friend class ZMarkTryCompleteTask; |
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private: |
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ZWorkers* const _workers; |
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ZPageTable* const _page_table; |
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ZMarkStackAllocator _allocator; |
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ZMarkStripeSet _stripes; |
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ZMarkTerminate _terminate; |
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volatile bool _work_terminateflush; |
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volatile size_t _work_nproactiveflush; |
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volatile size_t _work_nterminateflush; |
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size_t _nproactiveflush; |
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size_t _nterminateflush; |
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size_t _ntrycomplete; |
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size_t _ncontinue; |
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uint _nworkers; |
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size_t calculate_nstripes(uint nworkers) const; |
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void prepare_mark(); |
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bool is_array(uintptr_t addr) const; |
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void push_partial_array(uintptr_t addr, size_t size, bool finalizable); |
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void follow_small_array(uintptr_t addr, size_t size, bool finalizable); |
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void follow_large_array(uintptr_t addr, size_t size, bool finalizable); |
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void follow_array(uintptr_t addr, size_t size, bool finalizable); |
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void follow_partial_array(ZMarkStackEntry entry, bool finalizable); |
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void follow_array_object(objArrayOop obj, bool finalizable); |
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void follow_object(oop obj, bool finalizable); |
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bool try_mark_object(ZMarkCache* cache, uintptr_t addr, bool finalizable); |
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void mark_and_follow(ZMarkCache* cache, ZMarkStackEntry entry); |
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template <typename T> bool drain(ZMarkStripe* stripe, |
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ZMarkThreadLocalStacks* stacks, |
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ZMarkCache* cache, |
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T* timeout); |
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template <typename T> bool drain_and_flush(ZMarkStripe* stripe, |
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ZMarkThreadLocalStacks* stacks, |
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ZMarkCache* cache, |
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T* timeout); |
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bool try_steal(ZMarkStripe* stripe, ZMarkThreadLocalStacks* stacks); |
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void idle() const; |
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bool flush(bool at_safepoint); |
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bool try_proactive_flush(); |
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bool try_flush(volatile size_t* nflush); |
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bool try_terminate(); |
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bool try_complete(); |
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bool try_end(); |
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void prepare_work(); |
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void finish_work(); |
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void work_without_timeout(ZMarkCache* cache, |
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ZMarkStripe* stripe, |
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ZMarkThreadLocalStacks* stacks); |
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void work_with_timeout(ZMarkCache* cache, |
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ZMarkStripe* stripe, |
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ZMarkThreadLocalStacks* stacks, |
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uint64_t timeout_in_millis); |
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void work(uint64_t timeout_in_millis); |
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void verify_all_stacks_empty() const; |
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public: |
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ZMark(ZWorkers* workers, ZPageTable* page_table); |
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bool is_initialized() const; |
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template <bool finalizable, bool publish> void mark_object(uintptr_t addr); |
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void start(); |
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void mark(bool initial); |
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bool end(); |
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void flush_and_free(); |
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bool flush_and_free(Thread* thread); |
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}; |
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#endif // SHARE_GC_Z_ZMARK_HPP |