hotspot/src/share/vm/gc_implementation/g1/g1_specialized_oop_closures.hpp
author stefank
Mon, 07 Jul 2014 10:12:40 +0200
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8048248: G1 Class Unloading after completing a concurrent mark cycle Reviewed-by: tschatzl, ehelin, brutisso, coleenp, roland, iveresov
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/*
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 * Copyright (c) 2001, 2012, 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_VM_GC_IMPLEMENTATION_G1_G1_SPECIALIZED_OOP_CLOSURES_HPP
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#define SHARE_VM_GC_IMPLEMENTATION_G1_G1_SPECIALIZED_OOP_CLOSURES_HPP
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// The following OopClosure types get specialized versions of
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// "oop_oop_iterate" that invoke the closures' do_oop methods
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// non-virtually, using a mechanism defined in this file.  Extend these
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// macros in the obvious way to add specializations for new closures.
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enum G1Barrier {
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  G1BarrierNone,
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  G1BarrierEvac,
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  G1BarrierKlass
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};
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enum G1Mark {
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  G1MarkNone,
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  G1MarkFromRoot,
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  G1MarkPromotedFromRoot
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};
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// Forward declarations.
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template<G1Barrier barrier, G1Mark do_mark_object>
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class G1ParCopyClosure;
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class G1ParScanClosure;
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class G1ParPushHeapRSClosure;
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class FilterIntoCSClosure;
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class FilterOutOfRegionClosure;
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class G1CMOopClosure;
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class G1RootRegionScanClosure;
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// Specialized oop closures from g1RemSet.cpp
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class G1Mux2Closure;
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class G1TriggerClosure;
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class G1InvokeIfNotTriggeredClosure;
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class G1UpdateRSOrPushRefOopClosure;
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#ifdef FURTHER_SPECIALIZED_OOP_OOP_ITERATE_CLOSURES
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#error "FURTHER_SPECIALIZED_OOP_OOP_ITERATE_CLOSURES already defined."
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#endif
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#define FURTHER_SPECIALIZED_OOP_OOP_ITERATE_CLOSURES(f) \
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      f(G1ParScanClosure,_nv)                           \
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      f(G1ParPushHeapRSClosure,_nv)                     \
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      f(FilterIntoCSClosure,_nv)                        \
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      f(FilterOutOfRegionClosure,_nv)                   \
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      f(G1CMOopClosure,_nv)                             \
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      f(G1RootRegionScanClosure,_nv)                    \
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      f(G1Mux2Closure,_nv)                              \
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      f(G1TriggerClosure,_nv)                           \
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      f(G1InvokeIfNotTriggeredClosure,_nv)              \
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      f(G1UpdateRSOrPushRefOopClosure,_nv)
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#ifdef FURTHER_SPECIALIZED_SINCE_SAVE_MARKS_CLOSURES
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#error "FURTHER_SPECIALIZED_SINCE_SAVE_MARKS_CLOSURES already defined."
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#endif
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#define FURTHER_SPECIALIZED_SINCE_SAVE_MARKS_CLOSURES(f)
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#endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1_SPECIALIZED_OOP_CLOSURES_HPP