author | herrick |
Fri, 18 Oct 2019 14:14:37 -0400 | |
branch | JDK-8200758-branch |
changeset 58696 | 61c44899b4eb |
parent 58504 | 94dd00d2da29 |
child 58679 | 9c3209ff7550 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2019, 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_SERVICES_THREADIDTABLE_HPP |
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#define SHARE_SERVICES_THREADIDTABLE_HPP |
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#include "memory/allocation.hpp" |
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class JavaThread; |
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class ThreadsList; |
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class ThreadIdTableConfig; |
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class ThreadIdTable : public AllStatic { |
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friend class ThreadIdTableConfig; |
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static volatile bool _is_initialized; |
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static volatile bool _has_work; |
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public: |
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// Initialization |
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static void lazy_initialize(const ThreadsList* threads); |
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static bool is_initialized() { return _is_initialized; } |
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// Lookup and list management |
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static JavaThread* find_thread_by_tid(jlong tid); |
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static JavaThread* add_thread(jlong tid, JavaThread* thread); |
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static bool remove_thread(jlong tid); |
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// Growing |
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static bool has_work() { return _has_work; } |
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static void do_concurrent_work(JavaThread* jt); |
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private: |
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static void create_table(size_t size); |
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static size_t table_size(); |
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static double get_load_factor(); |
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static void check_concurrent_work(); |
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static void trigger_concurrent_work(); |
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static void grow(JavaThread* jt); |
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static void item_added(); |
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static void item_removed(); |
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}; |
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#endif // SHARE_SERVICES_THREADIDTABLE_HPP |