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annotate src/share/vm/gc_implementation/g1/g1_specialized_oop_closures.hpp @ 3886:eeae91c9baba

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7080389: G1: refactor marking code in evacuation pause copy closures Summary: Refactor code marking code in the evacuation pause copy closures so that an evacuated object is only marked by the thread that successfully copies it. Reviewed-by: stefank, brutisso, tonyp
author johnc
date Mon, 29 Aug 2011 10:13:06 -0700
parents 842b840e67db
children b4ebad3520bb
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1 /*
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2 * Copyright (c) 2001, 2011, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_G1_SPECIALIZED_OOP_CLOSURES_HPP
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26 #define SHARE_VM_GC_IMPLEMENTATION_G1_G1_SPECIALIZED_OOP_CLOSURES_HPP
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27
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28 // The following OopClosure types get specialized versions of
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29 // "oop_oop_iterate" that invoke the closures' do_oop methods
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30 // non-virtually, using a mechanism defined in this file. Extend these
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31 // macros in the obvious way to add specializations for new closures.
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32
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33 // Forward declarations.
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34 enum G1Barrier {
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35 G1BarrierNone, G1BarrierRS, G1BarrierEvac
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36 };
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37
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38 template<bool do_gen_barrier, G1Barrier barrier,
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39 bool do_mark_object>
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40 class G1ParCopyClosure;
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41 class G1ParScanClosure;
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42 class G1ParPushHeapRSClosure;
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43
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44 typedef G1ParCopyClosure<false, G1BarrierEvac, false> G1ParScanHeapEvacClosure;
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46 class FilterIntoCSClosure;
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47 class FilterOutOfRegionClosure;
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48 class G1CMOopClosure;
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50 #ifdef FURTHER_SPECIALIZED_OOP_OOP_ITERATE_CLOSURES
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51 #error "FURTHER_SPECIALIZED_OOP_OOP_ITERATE_CLOSURES already defined."
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52 #endif
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54 #define FURTHER_SPECIALIZED_OOP_OOP_ITERATE_CLOSURES(f) \
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55 f(G1ParScanHeapEvacClosure,_nv) \
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56 f(G1ParScanClosure,_nv) \
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57 f(G1ParPushHeapRSClosure,_nv) \
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58 f(FilterIntoCSClosure,_nv) \
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59 f(FilterOutOfRegionClosure,_nv) \
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60 f(G1CMOopClosure,_nv)
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62 #ifdef FURTHER_SPECIALIZED_SINCE_SAVE_MARKS_CLOSURES
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63 #error "FURTHER_SPECIALIZED_SINCE_SAVE_MARKS_CLOSURES already defined."
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64 #endif
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66 #define FURTHER_SPECIALIZED_SINCE_SAVE_MARKS_CLOSURES(f)
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68 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1_SPECIALIZED_OOP_CLOSURES_HPP