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src/share/vm/gc_implementation/parNew/parOopClosures.hpp@ee019285a52c (annotated)

src/share/vm/gc_implementation/parNew/parOopClosures.hpp

Mon, 04 Aug 2014 10:48:10 -0700

author
jmasa
date
Mon, 04 Aug 2014 10:48:10 -0700
changeset 7031
ee019285a52c
parent 5515
9766f73e770d
child 6876
710a3c8b516e
permissions
-rw-r--r--

8031323: Optionally align objects copied to survivor spaces
Reviewed-by: brutisso, tschatzl

duke@435 1 /*
stefank@5515 2 * Copyright (c) 2007, 2013, Oracle and/or its affiliates. All rights reserved.
duke@435 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435 4 *
duke@435 5 * This code is free software; you can redistribute it and/or modify it
duke@435 6 * under the terms of the GNU General Public License version 2 only, as
duke@435 7 * published by the Free Software Foundation.
duke@435 8 *
duke@435 9 * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435 12 * version 2 for more details (a copy is included in the LICENSE file that
duke@435 13 * accompanied this code).
duke@435 14 *
duke@435 15 * You should have received a copy of the GNU General Public License version
duke@435 16 * 2 along with this work; if not, write to the Free Software Foundation,
duke@435 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435 18 *
trims@1907 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
trims@1907 20 * or visit www.oracle.com if you need additional information or have any
trims@1907 21 * questions.
duke@435 22 *
duke@435 23 */
duke@435 24
stefank@2314 25 #ifndef SHARE_VM_GC_IMPLEMENTATION_PARNEW_PAROOPCLOSURES_HPP
stefank@2314 26 #define SHARE_VM_GC_IMPLEMENTATION_PARNEW_PAROOPCLOSURES_HPP
stefank@2314 27
stefank@2314 28 #include "memory/genOopClosures.hpp"
stefank@5515 29 #include "memory/padded.hpp"
stefank@2314 30
duke@435 31 // Closures for ParNewGeneration
duke@435 32
duke@435 33 class ParScanThreadState;
duke@435 34 class ParNewGeneration;
jcoomes@2020 35 typedef Padded<OopTaskQueue> ObjToScanQueue;
zgu@3900 36 typedef GenericTaskQueueSet<ObjToScanQueue, mtGC> ObjToScanQueueSet;
duke@435 37 class ParallelTaskTerminator;
duke@435 38
coleenp@4037 39 class ParScanClosure: public OopsInKlassOrGenClosure {
coleenp@548 40 protected:
duke@435 41 ParScanThreadState* _par_scan_state;
coleenp@548 42 ParNewGeneration* _g;
coleenp@548 43 HeapWord* _boundary;
coleenp@548 44 template <class T> void inline par_do_barrier(T* p);
coleenp@548 45 template <class T> void inline do_oop_work(T* p,
coleenp@548 46 bool gc_barrier,
coleenp@548 47 bool root_scan);
coleenp@548 48 public:
duke@435 49 ParScanClosure(ParNewGeneration* g, ParScanThreadState* par_scan_state);
duke@435 50 };
duke@435 51
duke@435 52 class ParScanWithBarrierClosure: public ParScanClosure {
coleenp@548 53 public:
duke@435 54 ParScanWithBarrierClosure(ParNewGeneration* g,
duke@435 55 ParScanThreadState* par_scan_state) :
duke@435 56 ParScanClosure(g, par_scan_state) {}
coleenp@548 57 virtual void do_oop(oop* p);
coleenp@548 58 virtual void do_oop(narrowOop* p);
coleenp@548 59 inline void do_oop_nv(oop* p);
coleenp@548 60 inline void do_oop_nv(narrowOop* p);
duke@435 61 };
duke@435 62
duke@435 63 class ParScanWithoutBarrierClosure: public ParScanClosure {
coleenp@548 64 public:
duke@435 65 ParScanWithoutBarrierClosure(ParNewGeneration* g,
duke@435 66 ParScanThreadState* par_scan_state) :
duke@435 67 ParScanClosure(g, par_scan_state) {}
coleenp@548 68 virtual void do_oop(oop* p);
coleenp@548 69 virtual void do_oop(narrowOop* p);
coleenp@548 70 inline void do_oop_nv(oop* p);
coleenp@548 71 inline void do_oop_nv(narrowOop* p);
duke@435 72 };
duke@435 73
duke@435 74 class ParRootScanWithBarrierTwoGensClosure: public ParScanClosure {
coleenp@548 75 public:
duke@435 76 ParRootScanWithBarrierTwoGensClosure(ParNewGeneration* g,
duke@435 77 ParScanThreadState* par_scan_state) :
duke@435 78 ParScanClosure(g, par_scan_state) {}
coleenp@548 79 virtual void do_oop(oop* p);
coleenp@548 80 virtual void do_oop(narrowOop* p);
duke@435 81 };
duke@435 82
duke@435 83 class ParRootScanWithoutBarrierClosure: public ParScanClosure {
coleenp@548 84 public:
duke@435 85 ParRootScanWithoutBarrierClosure(ParNewGeneration* g,
duke@435 86 ParScanThreadState* par_scan_state) :
duke@435 87 ParScanClosure(g, par_scan_state) {}
coleenp@548 88 virtual void do_oop(oop* p);
coleenp@548 89 virtual void do_oop(narrowOop* p);
duke@435 90 };
duke@435 91
duke@435 92 class ParScanWeakRefClosure: public ScanWeakRefClosure {
coleenp@548 93 protected:
duke@435 94 ParScanThreadState* _par_scan_state;
coleenp@548 95 template <class T> inline void do_oop_work(T* p);
coleenp@548 96 public:
duke@435 97 ParScanWeakRefClosure(ParNewGeneration* g,
duke@435 98 ParScanThreadState* par_scan_state);
coleenp@548 99 virtual void do_oop(oop* p);
coleenp@548 100 virtual void do_oop(narrowOop* p);
coleenp@548 101 inline void do_oop_nv(oop* p);
coleenp@548 102 inline void do_oop_nv(narrowOop* p);
duke@435 103 };
duke@435 104
duke@435 105 class ParEvacuateFollowersClosure: public VoidClosure {
coleenp@548 106 private:
duke@435 107 ParScanThreadState* _par_scan_state;
duke@435 108 ParScanThreadState* par_scan_state() { return _par_scan_state; }
duke@435 109
duke@435 110 // We want to preserve the specific types here (rather than "OopClosure")
duke@435 111 // for later de-virtualization of do_oop calls.
duke@435 112 ParScanWithoutBarrierClosure* _to_space_closure;
duke@435 113 ParScanWithoutBarrierClosure* to_space_closure() {
duke@435 114 return _to_space_closure;
duke@435 115 }
duke@435 116 ParRootScanWithoutBarrierClosure* _to_space_root_closure;
duke@435 117 ParRootScanWithoutBarrierClosure* to_space_root_closure() {
duke@435 118 return _to_space_root_closure;
duke@435 119 }
duke@435 120
duke@435 121 ParScanWithBarrierClosure* _old_gen_closure;
duke@435 122 ParScanWithBarrierClosure* old_gen_closure () {
duke@435 123 return _old_gen_closure;
duke@435 124 }
duke@435 125 ParRootScanWithBarrierTwoGensClosure* _old_gen_root_closure;
duke@435 126 ParRootScanWithBarrierTwoGensClosure* old_gen_root_closure () {
duke@435 127 return _old_gen_root_closure;
duke@435 128 }
duke@435 129
duke@435 130 ParNewGeneration* _par_gen;
duke@435 131 ParNewGeneration* par_gen() { return _par_gen; }
duke@435 132
duke@435 133 ObjToScanQueueSet* _task_queues;
duke@435 134 ObjToScanQueueSet* task_queues() { return _task_queues; }
duke@435 135
duke@435 136 ParallelTaskTerminator* _terminator;
duke@435 137 ParallelTaskTerminator* terminator() { return _terminator; }
coleenp@548 138 public:
duke@435 139 ParEvacuateFollowersClosure(
duke@435 140 ParScanThreadState* par_scan_state_,
duke@435 141 ParScanWithoutBarrierClosure* to_space_closure_,
duke@435 142 ParScanWithBarrierClosure* old_gen_closure_,
duke@435 143 ParRootScanWithoutBarrierClosure* to_space_root_closure_,
duke@435 144 ParNewGeneration* par_gen_,
duke@435 145 ParRootScanWithBarrierTwoGensClosure* old_gen_root_closure_,
duke@435 146 ObjToScanQueueSet* task_queues_,
duke@435 147 ParallelTaskTerminator* terminator_);
coleenp@548 148 virtual void do_void();
duke@435 149 };
stefank@2314 150
stefank@2314 151 #endif // SHARE_VM_GC_IMPLEMENTATION_PARNEW_PAROOPCLOSURES_HPP

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