graal-compiler: src/share/vm/gc_implementation/concurrentMarkSweep/cmsOopClosures.hpp annotate

annotate src/share/vm/gc_implementation/concurrentMarkSweep/cmsOopClosures.hpp @ 20804:7848fc12602b

Merge with jdk8u40-b25

author	Gilles Duboscq <gilles.m.duboscq@oracle.com>
date	Tue, 07 Apr 2015 14:58:49 +0200
parents	89152779163c 4c1b88a53c74
children

rev	line source
0 a61af66fc99e Initial load duke parents: diff changeset	1 /*
14223 de6a9e811145 8029233: Update copyright year to match last edit in jdk8 hotspot repository for 2013 mikael parents: 11975 diff changeset	2 * Copyright (c) 2007, 2013, Oracle and/or its affiliates. All rights reserved.
0 a61af66fc99e Initial load duke parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
a61af66fc99e Initial load duke parents: diff changeset	4 *
a61af66fc99e Initial load duke parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
a61af66fc99e Initial load duke parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
a61af66fc99e Initial load duke parents: diff changeset	7 * published by the Free Software Foundation.
a61af66fc99e Initial load duke parents: diff changeset	8 *
a61af66fc99e Initial load duke parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
a61af66fc99e Initial load duke parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
a61af66fc99e Initial load duke parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a61af66fc99e Initial load duke parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
a61af66fc99e Initial load duke parents: diff changeset	13 * accompanied this code).
a61af66fc99e Initial load duke parents: diff changeset	14 *
a61af66fc99e Initial load duke parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
a61af66fc99e Initial load duke parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
a61af66fc99e Initial load duke parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
a61af66fc99e Initial load duke parents: diff changeset	18 *
1552 c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 994 diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 994 diff changeset	20 * or visit www.oracle.com if you need additional information or have any
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 994 diff changeset	21 * questions.
0 a61af66fc99e Initial load duke parents: diff changeset	22 *
a61af66fc99e Initial load duke parents: diff changeset	23 */
a61af66fc99e Initial load duke parents: diff changeset	24
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	25 #ifndef SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_CMSOOPCLOSURES_HPP
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	26 #define SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_CMSOOPCLOSURES_HPP
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	27
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	28 #include "memory/genOopClosures.hpp"
20268 4c1b88a53c74 8046670: Make CMS metadata aware closures applicable for other collectors stefank parents: 14223 diff changeset	29 #include "memory/iterator.hpp"
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	30
0 a61af66fc99e Initial load duke parents: diff changeset	31 /////////////////////////////////////////////////////////////////
a61af66fc99e Initial load duke parents: diff changeset	32 // Closures used by ConcurrentMarkSweepGeneration's collector
a61af66fc99e Initial load duke parents: diff changeset	33 /////////////////////////////////////////////////////////////////
a61af66fc99e Initial load duke parents: diff changeset	34 class ConcurrentMarkSweepGeneration;
a61af66fc99e Initial load duke parents: diff changeset	35 class CMSBitMap;
a61af66fc99e Initial load duke parents: diff changeset	36 class CMSMarkStack;
a61af66fc99e Initial load duke parents: diff changeset	37 class CMSCollector;
a61af66fc99e Initial load duke parents: diff changeset	38 class MarkFromRootsClosure;
a61af66fc99e Initial load duke parents: diff changeset	39 class Par_MarkFromRootsClosure;
a61af66fc99e Initial load duke parents: diff changeset	40
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	41 // Decode the oop and call do_oop on it.
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	42 #define DO_OOP_WORK_DEFN \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	43 void do_oop(oop obj); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	44 template <class T> inline void do_oop_work(T* p) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	45 T heap_oop = oopDesc::load_heap_oop(p); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	46 if (!oopDesc::is_null(heap_oop)) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	47 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	48 do_oop(obj); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	49 } \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	50 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	51
20268 4c1b88a53c74 8046670: Make CMS metadata aware closures applicable for other collectors stefank parents: 14223 diff changeset	52 // TODO: This duplication of the MetadataAwareOopClosure class is only needed
4c1b88a53c74 8046670: Make CMS metadata aware closures applicable for other collectors stefank parents: 14223 diff changeset	53 // because some CMS OopClosures derive from OopsInGenClosure. It would be
4c1b88a53c74 8046670: Make CMS metadata aware closures applicable for other collectors stefank parents: 14223 diff changeset	54 // good to get rid of them completely.
4c1b88a53c74 8046670: Make CMS metadata aware closures applicable for other collectors stefank parents: 14223 diff changeset	55 class MetadataAwareOopsInGenClosure: public OopsInGenClosure {
4c1b88a53c74 8046670: Make CMS metadata aware closures applicable for other collectors stefank parents: 14223 diff changeset	56 KlassToOopClosure _klass_closure;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	57 public:
20268 4c1b88a53c74 8046670: Make CMS metadata aware closures applicable for other collectors stefank parents: 14223 diff changeset	58 MetadataAwareOopsInGenClosure() {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	59 _klass_closure.initialize(this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	60 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	61
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	62 virtual bool do_metadata() { return do_metadata_nv(); }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	63 inline bool do_metadata_nv() { return true; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	64
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	65 virtual void do_klass(Klass* k);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	66 void do_klass_nv(Klass* k);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	67
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	68 virtual void do_class_loader_data(ClassLoaderData* cld);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	69 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	70
20268 4c1b88a53c74 8046670: Make CMS metadata aware closures applicable for other collectors stefank parents: 14223 diff changeset	71 class MarkRefsIntoClosure: public MetadataAwareOopsInGenClosure {
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	72 private:
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	73 const MemRegion _span;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	74 CMSBitMap* _bitMap;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	75 protected:
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	76 DO_OOP_WORK_DEFN
0 a61af66fc99e Initial load duke parents: diff changeset	77 public:
994 753cf9794df9 6885169: merge of 4957990 and 6863023 causes conflict on do_nmethods jrose parents: 993 diff changeset	78 MarkRefsIntoClosure(MemRegion span, CMSBitMap* bitMap);
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	79 virtual void do_oop(oop* p);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	80 virtual void do_oop(narrowOop* p);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	81
0 a61af66fc99e Initial load duke parents: diff changeset	82 Prefetch::style prefetch_style() {
a61af66fc99e Initial load duke parents: diff changeset	83 return Prefetch::do_read;
a61af66fc99e Initial load duke parents: diff changeset	84 }
a61af66fc99e Initial load duke parents: diff changeset	85 };
a61af66fc99e Initial load duke parents: diff changeset	86
20268 4c1b88a53c74 8046670: Make CMS metadata aware closures applicable for other collectors stefank parents: 14223 diff changeset	87 class Par_MarkRefsIntoClosure: public MetadataAwareOopsInGenClosure {
11975 ca9dedeebdec 6412968: CMS Long initial mark pauses jmasa parents: 6725 diff changeset	88 private:
ca9dedeebdec 6412968: CMS Long initial mark pauses jmasa parents: 6725 diff changeset	89 const MemRegion _span;
ca9dedeebdec 6412968: CMS Long initial mark pauses jmasa parents: 6725 diff changeset	90 CMSBitMap* _bitMap;
ca9dedeebdec 6412968: CMS Long initial mark pauses jmasa parents: 6725 diff changeset	91 protected:
ca9dedeebdec 6412968: CMS Long initial mark pauses jmasa parents: 6725 diff changeset	92 DO_OOP_WORK_DEFN
ca9dedeebdec 6412968: CMS Long initial mark pauses jmasa parents: 6725 diff changeset	93 public:
ca9dedeebdec 6412968: CMS Long initial mark pauses jmasa parents: 6725 diff changeset	94 Par_MarkRefsIntoClosure(MemRegion span, CMSBitMap* bitMap);
ca9dedeebdec 6412968: CMS Long initial mark pauses jmasa parents: 6725 diff changeset	95 virtual void do_oop(oop* p);
ca9dedeebdec 6412968: CMS Long initial mark pauses jmasa parents: 6725 diff changeset	96 virtual void do_oop(narrowOop* p);
ca9dedeebdec 6412968: CMS Long initial mark pauses jmasa parents: 6725 diff changeset	97
ca9dedeebdec 6412968: CMS Long initial mark pauses jmasa parents: 6725 diff changeset	98 Prefetch::style prefetch_style() {
ca9dedeebdec 6412968: CMS Long initial mark pauses jmasa parents: 6725 diff changeset	99 return Prefetch::do_read;
ca9dedeebdec 6412968: CMS Long initial mark pauses jmasa parents: 6725 diff changeset	100 }
ca9dedeebdec 6412968: CMS Long initial mark pauses jmasa parents: 6725 diff changeset	101 };
ca9dedeebdec 6412968: CMS Long initial mark pauses jmasa parents: 6725 diff changeset	102
0 a61af66fc99e Initial load duke parents: diff changeset	103 // A variant of the above used in certain kinds of CMS
a61af66fc99e Initial load duke parents: diff changeset	104 // marking verification.
20268 4c1b88a53c74 8046670: Make CMS metadata aware closures applicable for other collectors stefank parents: 14223 diff changeset	105 class MarkRefsIntoVerifyClosure: public MetadataAwareOopsInGenClosure {
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	106 private:
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	107 const MemRegion _span;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	108 CMSBitMap* _verification_bm;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	109 CMSBitMap* _cms_bm;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	110 protected:
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	111 DO_OOP_WORK_DEFN
0 a61af66fc99e Initial load duke parents: diff changeset	112 public:
a61af66fc99e Initial load duke parents: diff changeset	113 MarkRefsIntoVerifyClosure(MemRegion span, CMSBitMap* verification_bm,
994 753cf9794df9 6885169: merge of 4957990 and 6863023 causes conflict on do_nmethods jrose parents: 993 diff changeset	114 CMSBitMap* cms_bm);
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	115 virtual void do_oop(oop* p);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	116 virtual void do_oop(narrowOop* p);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	117
0 a61af66fc99e Initial load duke parents: diff changeset	118 Prefetch::style prefetch_style() {
a61af66fc99e Initial load duke parents: diff changeset	119 return Prefetch::do_read;
a61af66fc99e Initial load duke parents: diff changeset	120 }
a61af66fc99e Initial load duke parents: diff changeset	121 };
a61af66fc99e Initial load duke parents: diff changeset	122
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	123 // The non-parallel version (the parallel version appears further below).
20268 4c1b88a53c74 8046670: Make CMS metadata aware closures applicable for other collectors stefank parents: 14223 diff changeset	124 class PushAndMarkClosure: public MetadataAwareOopClosure {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	125 private:
935 05f89f00a864 6798898: CMS: bugs related to class unloading jmasa parents: 452 diff changeset	126 CMSCollector* _collector;
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	127 MemRegion _span;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	128 CMSBitMap* _bit_map;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	129 CMSBitMap* _mod_union_table;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	130 CMSMarkStack* _mark_stack;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	131 bool _concurrent_precleaning;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	132 protected:
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	133 DO_OOP_WORK_DEFN
0 a61af66fc99e Initial load duke parents: diff changeset	134 public:
a61af66fc99e Initial load duke parents: diff changeset	135 PushAndMarkClosure(CMSCollector* collector,
a61af66fc99e Initial load duke parents: diff changeset	136 MemRegion span,
a61af66fc99e Initial load duke parents: diff changeset	137 ReferenceProcessor* rp,
a61af66fc99e Initial load duke parents: diff changeset	138 CMSBitMap* bit_map,
a61af66fc99e Initial load duke parents: diff changeset	139 CMSBitMap* mod_union_table,
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	140 CMSMarkStack* mark_stack,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	141 bool concurrent_precleaning);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	142 virtual void do_oop(oop* p);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	143 virtual void do_oop(narrowOop* p);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	144 inline void do_oop_nv(oop* p) { PushAndMarkClosure::do_oop_work(p); }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	145 inline void do_oop_nv(narrowOop* p) { PushAndMarkClosure::do_oop_work(p); }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	146
0 a61af66fc99e Initial load duke parents: diff changeset	147 Prefetch::style prefetch_style() {
a61af66fc99e Initial load duke parents: diff changeset	148 return Prefetch::do_read;
a61af66fc99e Initial load duke parents: diff changeset	149 }
a61af66fc99e Initial load duke parents: diff changeset	150 };
a61af66fc99e Initial load duke parents: diff changeset	151
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	152 // In the parallel case, the bit map and the
0 a61af66fc99e Initial load duke parents: diff changeset	153 // reference processor are currently all shared. Access to
a61af66fc99e Initial load duke parents: diff changeset	154 // these shared mutable structures must use appropriate
a61af66fc99e Initial load duke parents: diff changeset	155 // synchronization (for instance, via CAS). The marking stack
a61af66fc99e Initial load duke parents: diff changeset	156 // used in the non-parallel case above is here replaced with
a61af66fc99e Initial load duke parents: diff changeset	157 // an OopTaskQueue structure to allow efficient work stealing.
20268 4c1b88a53c74 8046670: Make CMS metadata aware closures applicable for other collectors stefank parents: 14223 diff changeset	158 class Par_PushAndMarkClosure: public MetadataAwareOopClosure {
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	159 private:
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	160 CMSCollector* _collector;
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	161 MemRegion _span;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	162 CMSBitMap* _bit_map;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	163 OopTaskQueue* _work_queue;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	164 protected:
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	165 DO_OOP_WORK_DEFN
0 a61af66fc99e Initial load duke parents: diff changeset	166 public:
a61af66fc99e Initial load duke parents: diff changeset	167 Par_PushAndMarkClosure(CMSCollector* collector,
a61af66fc99e Initial load duke parents: diff changeset	168 MemRegion span,
a61af66fc99e Initial load duke parents: diff changeset	169 ReferenceProcessor* rp,
a61af66fc99e Initial load duke parents: diff changeset	170 CMSBitMap* bit_map,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	171 OopTaskQueue* work_queue);
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	172 virtual void do_oop(oop* p);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	173 virtual void do_oop(narrowOop* p);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	174 inline void do_oop_nv(oop* p) { Par_PushAndMarkClosure::do_oop_work(p); }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	175 inline void do_oop_nv(narrowOop* p) { Par_PushAndMarkClosure::do_oop_work(p); }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	176
0 a61af66fc99e Initial load duke parents: diff changeset	177 Prefetch::style prefetch_style() {
a61af66fc99e Initial load duke parents: diff changeset	178 return Prefetch::do_read;
a61af66fc99e Initial load duke parents: diff changeset	179 }
a61af66fc99e Initial load duke parents: diff changeset	180 };
a61af66fc99e Initial load duke parents: diff changeset	181
a61af66fc99e Initial load duke parents: diff changeset	182 // The non-parallel version (the parallel version appears further below).
20268 4c1b88a53c74 8046670: Make CMS metadata aware closures applicable for other collectors stefank parents: 14223 diff changeset	183 class MarkRefsIntoAndScanClosure: public MetadataAwareOopsInGenClosure {
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	184 private:
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	185 MemRegion _span;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	186 CMSBitMap* _bit_map;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	187 CMSMarkStack* _mark_stack;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	188 PushAndMarkClosure _pushAndMarkClosure;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	189 CMSCollector* _collector;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	190 Mutex* _freelistLock;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	191 bool _yield;
0 a61af66fc99e Initial load duke parents: diff changeset	192 // Whether closure is being used for concurrent precleaning
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	193 bool _concurrent_precleaning;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	194 protected:
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	195 DO_OOP_WORK_DEFN
0 a61af66fc99e Initial load duke parents: diff changeset	196 public:
a61af66fc99e Initial load duke parents: diff changeset	197 MarkRefsIntoAndScanClosure(MemRegion span,
a61af66fc99e Initial load duke parents: diff changeset	198 ReferenceProcessor* rp,
a61af66fc99e Initial load duke parents: diff changeset	199 CMSBitMap* bit_map,
a61af66fc99e Initial load duke parents: diff changeset	200 CMSBitMap* mod_union_table,
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	201 CMSMarkStack* mark_stack,
0 a61af66fc99e Initial load duke parents: diff changeset	202 CMSCollector* collector,
a61af66fc99e Initial load duke parents: diff changeset	203 bool should_yield,
a61af66fc99e Initial load duke parents: diff changeset	204 bool concurrent_precleaning);
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	205 virtual void do_oop(oop* p);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	206 virtual void do_oop(narrowOop* p);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	207 inline void do_oop_nv(oop* p) { MarkRefsIntoAndScanClosure::do_oop_work(p); }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	208 inline void do_oop_nv(narrowOop* p) { MarkRefsIntoAndScanClosure::do_oop_work(p); }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	209
0 a61af66fc99e Initial load duke parents: diff changeset	210 Prefetch::style prefetch_style() {
a61af66fc99e Initial load duke parents: diff changeset	211 return Prefetch::do_read;
a61af66fc99e Initial load duke parents: diff changeset	212 }
a61af66fc99e Initial load duke parents: diff changeset	213 void set_freelistLock(Mutex* m) {
a61af66fc99e Initial load duke parents: diff changeset	214 _freelistLock = m;
a61af66fc99e Initial load duke parents: diff changeset	215 }
a61af66fc99e Initial load duke parents: diff changeset	216
a61af66fc99e Initial load duke parents: diff changeset	217 private:
a61af66fc99e Initial load duke parents: diff changeset	218 inline void do_yield_check();
a61af66fc99e Initial load duke parents: diff changeset	219 void do_yield_work();
a61af66fc99e Initial load duke parents: diff changeset	220 bool take_from_overflow_list();
a61af66fc99e Initial load duke parents: diff changeset	221 };
a61af66fc99e Initial load duke parents: diff changeset	222
a61af66fc99e Initial load duke parents: diff changeset	223 // Tn this, the parallel avatar of MarkRefsIntoAndScanClosure, the revisit
a61af66fc99e Initial load duke parents: diff changeset	224 // stack and the bitMap are shared, so access needs to be suitably
a61af66fc99e Initial load duke parents: diff changeset	225 // sycnhronized. An OopTaskQueue structure, supporting efficient
a61af66fc99e Initial load duke parents: diff changeset	226 // workstealing, replaces a CMSMarkStack for storing grey objects.
20268 4c1b88a53c74 8046670: Make CMS metadata aware closures applicable for other collectors stefank parents: 14223 diff changeset	227 class Par_MarkRefsIntoAndScanClosure: public MetadataAwareOopsInGenClosure {
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	228 private:
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	229 MemRegion _span;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	230 CMSBitMap* _bit_map;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	231 OopTaskQueue* _work_queue;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	232 const uint _low_water_mark;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	233 Par_PushAndMarkClosure _par_pushAndMarkClosure;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	234 protected:
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	235 DO_OOP_WORK_DEFN
0 a61af66fc99e Initial load duke parents: diff changeset	236 public:
a61af66fc99e Initial load duke parents: diff changeset	237 Par_MarkRefsIntoAndScanClosure(CMSCollector* collector,
a61af66fc99e Initial load duke parents: diff changeset	238 MemRegion span,
a61af66fc99e Initial load duke parents: diff changeset	239 ReferenceProcessor* rp,
a61af66fc99e Initial load duke parents: diff changeset	240 CMSBitMap* bit_map,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	241 OopTaskQueue* work_queue);
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	242 virtual void do_oop(oop* p);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	243 virtual void do_oop(narrowOop* p);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	244 inline void do_oop_nv(oop* p) { Par_MarkRefsIntoAndScanClosure::do_oop_work(p); }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	245 inline void do_oop_nv(narrowOop* p) { Par_MarkRefsIntoAndScanClosure::do_oop_work(p); }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	246
0 a61af66fc99e Initial load duke parents: diff changeset	247 Prefetch::style prefetch_style() {
a61af66fc99e Initial load duke parents: diff changeset	248 return Prefetch::do_read;
a61af66fc99e Initial load duke parents: diff changeset	249 }
a61af66fc99e Initial load duke parents: diff changeset	250 void trim_queue(uint size);
a61af66fc99e Initial load duke parents: diff changeset	251 };
a61af66fc99e Initial load duke parents: diff changeset	252
a61af66fc99e Initial load duke parents: diff changeset	253 // This closure is used during the concurrent marking phase
a61af66fc99e Initial load duke parents: diff changeset	254 // following the first checkpoint. Its use is buried in
a61af66fc99e Initial load duke parents: diff changeset	255 // the closure MarkFromRootsClosure.
20268 4c1b88a53c74 8046670: Make CMS metadata aware closures applicable for other collectors stefank parents: 14223 diff changeset	256 class PushOrMarkClosure: public MetadataAwareOopClosure {
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	257 private:
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	258 CMSCollector* _collector;
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	259 MemRegion _span;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	260 CMSBitMap* _bitMap;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	261 CMSMarkStack* _markStack;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	262 HeapWord* const _finger;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	263 MarkFromRootsClosure* const
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	264 _parent;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	265 protected:
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	266 DO_OOP_WORK_DEFN
0 a61af66fc99e Initial load duke parents: diff changeset	267 public:
a61af66fc99e Initial load duke parents: diff changeset	268 PushOrMarkClosure(CMSCollector* cms_collector,
a61af66fc99e Initial load duke parents: diff changeset	269 MemRegion span,
a61af66fc99e Initial load duke parents: diff changeset	270 CMSBitMap* bitMap,
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	271 CMSMarkStack* markStack,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	272 HeapWord* finger,
0 a61af66fc99e Initial load duke parents: diff changeset	273 MarkFromRootsClosure* parent);
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	274 virtual void do_oop(oop* p);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	275 virtual void do_oop(narrowOop* p);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	276 inline void do_oop_nv(oop* p) { PushOrMarkClosure::do_oop_work(p); }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	277 inline void do_oop_nv(narrowOop* p) { PushOrMarkClosure::do_oop_work(p); }
941 8b46c4d82093 4957990: Perm heap bloat in JVM ysr parents: 935 diff changeset	278
0 a61af66fc99e Initial load duke parents: diff changeset	279 // Deal with a stack overflow condition
a61af66fc99e Initial load duke parents: diff changeset	280 void handle_stack_overflow(HeapWord* lost);
a61af66fc99e Initial load duke parents: diff changeset	281 private:
a61af66fc99e Initial load duke parents: diff changeset	282 inline void do_yield_check();
a61af66fc99e Initial load duke parents: diff changeset	283 };
a61af66fc99e Initial load duke parents: diff changeset	284
a61af66fc99e Initial load duke parents: diff changeset	285 // A parallel (MT) version of the above.
a61af66fc99e Initial load duke parents: diff changeset	286 // This closure is used during the concurrent marking phase
a61af66fc99e Initial load duke parents: diff changeset	287 // following the first checkpoint. Its use is buried in
a61af66fc99e Initial load duke parents: diff changeset	288 // the closure Par_MarkFromRootsClosure.
20268 4c1b88a53c74 8046670: Make CMS metadata aware closures applicable for other collectors stefank parents: 14223 diff changeset	289 class Par_PushOrMarkClosure: public MetadataAwareOopClosure {
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	290 private:
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	291 CMSCollector* _collector;
0 a61af66fc99e Initial load duke parents: diff changeset	292 MemRegion _whole_span;
a61af66fc99e Initial load duke parents: diff changeset	293 MemRegion _span; // local chunk
a61af66fc99e Initial load duke parents: diff changeset	294 CMSBitMap* _bit_map;
a61af66fc99e Initial load duke parents: diff changeset	295 OopTaskQueue* _work_queue;
a61af66fc99e Initial load duke parents: diff changeset	296 CMSMarkStack* _overflow_stack;
a61af66fc99e Initial load duke parents: diff changeset	297 HeapWord* const _finger;
a61af66fc99e Initial load duke parents: diff changeset	298 HeapWord** const _global_finger_addr;
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	299 Par_MarkFromRootsClosure* const
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	300 _parent;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	301 protected:
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	302 DO_OOP_WORK_DEFN
0 a61af66fc99e Initial load duke parents: diff changeset	303 public:
a61af66fc99e Initial load duke parents: diff changeset	304 Par_PushOrMarkClosure(CMSCollector* cms_collector,
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	305 MemRegion span,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	306 CMSBitMap* bit_map,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	307 OopTaskQueue* work_queue,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	308 CMSMarkStack* mark_stack,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	309 HeapWord* finger,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	310 HeapWord** global_finger_addr,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	311 Par_MarkFromRootsClosure* parent);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	312 virtual void do_oop(oop* p);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	313 virtual void do_oop(narrowOop* p);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	314 inline void do_oop_nv(oop* p) { Par_PushOrMarkClosure::do_oop_work(p); }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	315 inline void do_oop_nv(narrowOop* p) { Par_PushOrMarkClosure::do_oop_work(p); }
941 8b46c4d82093 4957990: Perm heap bloat in JVM ysr parents: 935 diff changeset	316
0 a61af66fc99e Initial load duke parents: diff changeset	317 // Deal with a stack overflow condition
a61af66fc99e Initial load duke parents: diff changeset	318 void handle_stack_overflow(HeapWord* lost);
a61af66fc99e Initial load duke parents: diff changeset	319 private:
a61af66fc99e Initial load duke parents: diff changeset	320 inline void do_yield_check();
a61af66fc99e Initial load duke parents: diff changeset	321 };
a61af66fc99e Initial load duke parents: diff changeset	322
a61af66fc99e Initial load duke parents: diff changeset	323 // For objects in CMS generation, this closure marks
a61af66fc99e Initial load duke parents: diff changeset	324 // given objects (transitively) as being reachable/live.
a61af66fc99e Initial load duke parents: diff changeset	325 // This is currently used during the (weak) reference object
452 00b023ae2d78 6722113: CMS: Incorrect overflow handling during precleaning of Reference lists ysr parents: 143 diff changeset	326 // processing phase of the CMS final checkpoint step, as
00b023ae2d78 6722113: CMS: Incorrect overflow handling during precleaning of Reference lists ysr parents: 143 diff changeset	327 // well as during the concurrent precleaning of the discovered
00b023ae2d78 6722113: CMS: Incorrect overflow handling during precleaning of Reference lists ysr parents: 143 diff changeset	328 // reference lists.
20268 4c1b88a53c74 8046670: Make CMS metadata aware closures applicable for other collectors stefank parents: 14223 diff changeset	329 class CMSKeepAliveClosure: public MetadataAwareOopClosure {
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	330 private:
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	331 CMSCollector* _collector;
143 b5489bb705c9 6662086: 6u4+, 7b11+: CMS never clears referents when -XX:+ParallelRefProcEnabled ysr parents: 113 diff changeset	332 const MemRegion _span;
0 a61af66fc99e Initial load duke parents: diff changeset	333 CMSMarkStack* _mark_stack;
a61af66fc99e Initial load duke parents: diff changeset	334 CMSBitMap* _bit_map;
452 00b023ae2d78 6722113: CMS: Incorrect overflow handling during precleaning of Reference lists ysr parents: 143 diff changeset	335 bool _concurrent_precleaning;
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	336 protected:
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	337 DO_OOP_WORK_DEFN
0 a61af66fc99e Initial load duke parents: diff changeset	338 public:
a61af66fc99e Initial load duke parents: diff changeset	339 CMSKeepAliveClosure(CMSCollector* collector, MemRegion span,
452 00b023ae2d78 6722113: CMS: Incorrect overflow handling during precleaning of Reference lists ysr parents: 143 diff changeset	340 CMSBitMap* bit_map, CMSMarkStack* mark_stack,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	341 bool cpc);
452 00b023ae2d78 6722113: CMS: Incorrect overflow handling during precleaning of Reference lists ysr parents: 143 diff changeset	342 bool concurrent_precleaning() const { return _concurrent_precleaning; }
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	343 virtual void do_oop(oop* p);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	344 virtual void do_oop(narrowOop* p);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	345 inline void do_oop_nv(oop* p) { CMSKeepAliveClosure::do_oop_work(p); }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	346 inline void do_oop_nv(narrowOop* p) { CMSKeepAliveClosure::do_oop_work(p); }
0 a61af66fc99e Initial load duke parents: diff changeset	347 };
a61af66fc99e Initial load duke parents: diff changeset	348
20268 4c1b88a53c74 8046670: Make CMS metadata aware closures applicable for other collectors stefank parents: 14223 diff changeset	349 class CMSInnerParMarkAndPushClosure: public MetadataAwareOopClosure {
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	350 private:
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	351 CMSCollector* _collector;
0 a61af66fc99e Initial load duke parents: diff changeset	352 MemRegion _span;
a61af66fc99e Initial load duke parents: diff changeset	353 OopTaskQueue* _work_queue;
a61af66fc99e Initial load duke parents: diff changeset	354 CMSBitMap* _bit_map;
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	355 protected:
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	356 DO_OOP_WORK_DEFN
0 a61af66fc99e Initial load duke parents: diff changeset	357 public:
a61af66fc99e Initial load duke parents: diff changeset	358 CMSInnerParMarkAndPushClosure(CMSCollector* collector,
a61af66fc99e Initial load duke parents: diff changeset	359 MemRegion span, CMSBitMap* bit_map,
935 05f89f00a864 6798898: CMS: bugs related to class unloading jmasa parents: 452 diff changeset	360 OopTaskQueue* work_queue);
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	361 virtual void do_oop(oop* p);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	362 virtual void do_oop(narrowOop* p);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	363 inline void do_oop_nv(oop* p) { CMSInnerParMarkAndPushClosure::do_oop_work(p); }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	364 inline void do_oop_nv(narrowOop* p) { CMSInnerParMarkAndPushClosure::do_oop_work(p); }
0 a61af66fc99e Initial load duke parents: diff changeset	365 };
a61af66fc99e Initial load duke parents: diff changeset	366
a61af66fc99e Initial load duke parents: diff changeset	367 // A parallel (MT) version of the above, used when
a61af66fc99e Initial load duke parents: diff changeset	368 // reference processing is parallel; the only difference
a61af66fc99e Initial load duke parents: diff changeset	369 // is in the do_oop method.
20268 4c1b88a53c74 8046670: Make CMS metadata aware closures applicable for other collectors stefank parents: 14223 diff changeset	370 class CMSParKeepAliveClosure: public MetadataAwareOopClosure {
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	371 private:
0 a61af66fc99e Initial load duke parents: diff changeset	372 MemRegion _span;
a61af66fc99e Initial load duke parents: diff changeset	373 OopTaskQueue* _work_queue;
a61af66fc99e Initial load duke parents: diff changeset	374 CMSBitMap* _bit_map;
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	375 CMSInnerParMarkAndPushClosure
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	376 _mark_and_push;
0 a61af66fc99e Initial load duke parents: diff changeset	377 const uint _low_water_mark;
a61af66fc99e Initial load duke parents: diff changeset	378 void trim_queue(uint max);
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	379 protected:
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	380 DO_OOP_WORK_DEFN
0 a61af66fc99e Initial load duke parents: diff changeset	381 public:
a61af66fc99e Initial load duke parents: diff changeset	382 CMSParKeepAliveClosure(CMSCollector* collector, MemRegion span,
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 1972 diff changeset	383 CMSBitMap* bit_map, OopTaskQueue* work_queue);
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	384 virtual void do_oop(oop* p);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	385 virtual void do_oop(narrowOop* p);
0 a61af66fc99e Initial load duke parents: diff changeset	386 };
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	387
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1552 diff changeset	388 #endif // SHARE_VM_GC_IMPLEMENTATION_CONCURRENTMARKSWEEP_CMSOOPCLOSURES_HPP

Mercurial > hg > graal-compiler

annotate src/share/vm/gc_implementation/concurrentMarkSweep/cmsOopClosures.hpp @ 20804:7848fc12602b