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src/hotspot/share/gc/z/zAddress.hpp
author pliden
Thu, 25 Apr 2019 08:55:50 +0200
changeset 54617 24f6b0e413a0
parent 52382 2e280ecec246
child 55223 3f8a81f5d1b2
permissions -rw-r--r--
8221786: ZGC: Increase max heap size to 16TB Reviewed-by: stefank
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/*
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 * Copyright (c) 2015, 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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#ifndef SHARE_GC_Z_ZADDRESS_HPP













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#define SHARE_GC_Z_ZADDRESS_HPP













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#include "memory/allocation.hpp"













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class ZAddress : public AllStatic {








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  friend class ZAddressTest;













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private:













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  static void set_good_mask(uintptr_t mask);













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public:








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  static void initialize();













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  static void flip_to_marked();













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  static void flip_to_remapped();













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  static bool is_null(uintptr_t value);













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  static bool is_bad(uintptr_t value);













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  static bool is_good(uintptr_t value);













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  static bool is_good_or_null(uintptr_t value);













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  static bool is_weak_bad(uintptr_t value);













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  static bool is_weak_good(uintptr_t value);













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  static bool is_weak_good_or_null(uintptr_t value);













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  static bool is_marked(uintptr_t value);













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  static bool is_finalizable(uintptr_t value);








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  static bool is_finalizable_good(uintptr_t value);








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  static bool is_remapped(uintptr_t value);













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  static uintptr_t address(uintptr_t value);













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  static uintptr_t offset(uintptr_t value);













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  static uintptr_t good(uintptr_t value);













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  static uintptr_t good_or_null(uintptr_t value);













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  static uintptr_t finalizable_good(uintptr_t value);













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  static uintptr_t marked(uintptr_t value);













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  static uintptr_t marked0(uintptr_t value);













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  static uintptr_t marked1(uintptr_t value);













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  static uintptr_t remapped(uintptr_t value);













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  static uintptr_t remapped_or_null(uintptr_t value);













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};













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#endif // SHARE_GC_Z_ZADDRESS_HPP















jdk-sandbox