author | tschatzl |
Wed, 28 Jun 2017 10:58:19 +0200 | |
changeset 46572 | fef0d64b2263 |
parent 46519 | 40c9c132f961 |
child 46590 | cd27cb97655c |
permissions | -rw-r--r-- |
1374 | 1 |
/* |
46307
686d50172bfd
8071278: Fix the closure mess in G1RemSet::refine_card()
tschatzl
parents:
41176
diff
changeset
|
2 |
* Copyright (c) 2001, 2017, Oracle and/or its affiliates. All rights reserved. |
1374 | 3 |
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 |
* |
|
5 |
* This code is free software; you can redistribute it and/or modify it |
|
6 |
* under the terms of the GNU General Public License version 2 only, as |
|
7 |
* published by the Free Software Foundation. |
|
8 |
* |
|
9 |
* This code is distributed in the hope that it will be useful, but WITHOUT |
|
10 |
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
|
11 |
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
|
12 |
* version 2 for more details (a copy is included in the LICENSE file that |
|
13 |
* accompanied this code). |
|
14 |
* |
|
15 |
* You should have received a copy of the GNU General Public License version |
|
16 |
* 2 along with this work; if not, write to the Free Software Foundation, |
|
17 |
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
|
18 |
* |
|
5547
f4b087cbb361
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
4902
diff
changeset
|
19 |
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
f4b087cbb361
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
4902
diff
changeset
|
20 |
* or visit www.oracle.com if you need additional information or have any |
f4b087cbb361
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
4902
diff
changeset
|
21 |
* questions. |
1374 | 22 |
* |
23 |
*/ |
|
24 |
||
30764 | 25 |
#ifndef SHARE_VM_GC_G1_G1OOPCLOSURES_HPP |
26 |
#define SHARE_VM_GC_G1_G1OOPCLOSURES_HPP |
|
7397 | 27 |
|
46572 | 28 |
#include "gc/g1/g1InCSetState.hpp" |
25492
d27050bdfb04
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
25491
diff
changeset
|
29 |
#include "memory/iterator.hpp" |
28213
b0bf57cd1e9d
8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
tschatzl
parents:
28207
diff
changeset
|
30 |
#include "oops/markOop.hpp" |
25492
d27050bdfb04
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
25491
diff
changeset
|
31 |
|
1374 | 32 |
class HeapRegion; |
33 |
class G1CollectedHeap; |
|
34 |
class G1RemSet; |
|
35943
e726308008c0
8148973: Rename g1/concurrentMark.{hpp,cpp,inline.hpp} to g1/g1ConcurrentMark.{hpp,cpp,inline.hpp}
ehelin
parents:
35862
diff
changeset
|
35 |
class G1ConcurrentMark; |
1374 | 36 |
class DirtyCardToOopClosure; |
35943
e726308008c0
8148973: Rename g1/concurrentMark.{hpp,cpp,inline.hpp} to g1/g1ConcurrentMark.{hpp,cpp,inline.hpp}
ehelin
parents:
35862
diff
changeset
|
37 |
class G1CMBitMap; |
1374 | 38 |
class G1ParScanThreadState; |
35943
e726308008c0
8148973: Rename g1/concurrentMark.{hpp,cpp,inline.hpp} to g1/g1ConcurrentMark.{hpp,cpp,inline.hpp}
ehelin
parents:
35862
diff
changeset
|
39 |
class G1CMTask; |
10670
4ea0e7d2ffbc
6484982: G1: process references during evacuation pauses
johnc
parents:
10664
diff
changeset
|
40 |
class ReferenceProcessor; |
1374 | 41 |
|
42 |
// A class that scans oops in a given heap region (much as OopsInGenClosure |
|
43 |
// scans oops in a generation.) |
|
22547
4671971bad6b
8027746: Remove do_gen_barrier template parameter in G1ParCopyClosure
tschatzl
parents:
20282
diff
changeset
|
44 |
class OopsInHeapRegionClosure: public ExtendedOopClosure { |
1374 | 45 |
protected: |
46 |
HeapRegion* _from; |
|
47 |
public: |
|
9988
01f84e2c3fc0
7045662: G1: OopsInHeapRegionClosure::set_region() should not be virtual
tonyp
parents:
7397
diff
changeset
|
48 |
void set_region(HeapRegion* from) { _from = from; } |
1374 | 49 |
}; |
50 |
||
46572 | 51 |
class G1ScanClosureBase : public OopsInHeapRegionClosure { |
1374 | 52 |
protected: |
53 |
G1CollectedHeap* _g1; |
|
54 |
G1ParScanThreadState* _par_scan_state; |
|
33224
bc5da96c1f0e
8139200: Eliminate G1ParClosureSuper::_worker_id
kbarrett
parents:
33213
diff
changeset
|
55 |
|
46572 | 56 |
G1ScanClosureBase(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state); |
57 |
~G1ScanClosureBase() { } |
|
33224
bc5da96c1f0e
8139200: Eliminate G1ParClosureSuper::_worker_id
kbarrett
parents:
33213
diff
changeset
|
58 |
|
46572 | 59 |
template <class T> |
60 |
inline void prefetch_and_push(T* p, oop const obj); |
|
61 |
||
62 |
template <class T> |
|
63 |
inline void handle_non_cset_obj_common(InCSetState const state, T* p, oop const obj); |
|
1374 | 64 |
public: |
46445
825b002e05ae
8138888: Remove ExtendedOopClosure::apply_to_weak_ref_discovered_field
sjohanss
parents:
46307
diff
changeset
|
65 |
// This closure needs special handling for InstanceRefKlass. |
825b002e05ae
8138888: Remove ExtendedOopClosure::apply_to_weak_ref_discovered_field
sjohanss
parents:
46307
diff
changeset
|
66 |
virtual ReferenceIterationMode reference_iteration_mode() { return DO_DISCOVERED_AND_DISCOVERY; } |
1374 | 67 |
}; |
68 |
||
46572 | 69 |
// Used during the Update RS phase to refine remaining cards in the DCQ during garbage collection. |
70 |
class G1ScanObjsDuringUpdateRSClosure: public G1ScanClosureBase { |
|
71 |
uint _worker_i; |
|
72 |
bool _has_refs_into_cset; |
|
73 |
||
4902
991aaddb5165
6923991: G1: improve scalability of RSet scanning
iveresov
parents:
3262
diff
changeset
|
74 |
public: |
46572 | 75 |
G1ScanObjsDuringUpdateRSClosure(G1CollectedHeap* g1h, |
76 |
G1ParScanThreadState* pss, |
|
77 |
uint worker_i) : |
|
78 |
G1ScanClosureBase(g1h, pss), _has_refs_into_cset(false), _worker_i(worker_i) { } |
|
79 |
||
80 |
void reset_has_refs_into_cset() { _has_refs_into_cset = false; } |
|
81 |
bool has_refs_into_cset() const { return _has_refs_into_cset; } |
|
82 |
||
83 |
template <class T> void do_oop_nv(T* p); |
|
84 |
virtual void do_oop(narrowOop* p) { do_oop_nv(p); } |
|
85 |
virtual void do_oop(oop* p) { do_oop_nv(p); } |
|
86 |
}; |
|
87 |
||
88 |
// Used during the Scan RS phase to scan cards from the remembered set during garbage collection. |
|
89 |
class G1ScanObjsDuringScanRSClosure : public G1ScanClosureBase { |
|
90 |
public: |
|
91 |
G1ScanObjsDuringScanRSClosure(G1CollectedHeap* g1, |
|
92 |
G1ParScanThreadState* par_scan_state): |
|
93 |
G1ScanClosureBase(g1, par_scan_state) { } |
|
10670
4ea0e7d2ffbc
6484982: G1: process references during evacuation pauses
johnc
parents:
10664
diff
changeset
|
94 |
|
4902
991aaddb5165
6923991: G1: improve scalability of RSet scanning
iveresov
parents:
3262
diff
changeset
|
95 |
template <class T> void do_oop_nv(T* p); |
991aaddb5165
6923991: G1: improve scalability of RSet scanning
iveresov
parents:
3262
diff
changeset
|
96 |
virtual void do_oop(oop* p) { do_oop_nv(p); } |
991aaddb5165
6923991: G1: improve scalability of RSet scanning
iveresov
parents:
3262
diff
changeset
|
97 |
virtual void do_oop(narrowOop* p) { do_oop_nv(p); } |
991aaddb5165
6923991: G1: improve scalability of RSet scanning
iveresov
parents:
3262
diff
changeset
|
98 |
}; |
991aaddb5165
6923991: G1: improve scalability of RSet scanning
iveresov
parents:
3262
diff
changeset
|
99 |
|
46572 | 100 |
// This closure is applied to the fields of the objects that have just been copied during evacuation. |
101 |
class G1ScanEvacuatedObjClosure : public G1ScanClosureBase { |
|
1374 | 102 |
public: |
46572 | 103 |
G1ScanEvacuatedObjClosure(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state) : |
104 |
G1ScanClosureBase(g1, par_scan_state) { } |
|
10670
4ea0e7d2ffbc
6484982: G1: process references during evacuation pauses
johnc
parents:
10664
diff
changeset
|
105 |
|
3262
30d1c247fc25
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
2105
diff
changeset
|
106 |
template <class T> void do_oop_nv(T* p); |
1374 | 107 |
virtual void do_oop(oop* p) { do_oop_nv(p); } |
108 |
virtual void do_oop(narrowOop* p) { do_oop_nv(p); } |
|
32381
b750fd963056
8040162: Avoid reallocating PLABs between GC phases in G1
tschatzl
parents:
31976
diff
changeset
|
109 |
|
33226
19cb9b844190
8139341: Hide ExtendedOopClosure::_ref_processor
kbarrett
parents:
33224
diff
changeset
|
110 |
void set_ref_processor(ReferenceProcessor* rp) { |
19cb9b844190
8139341: Hide ExtendedOopClosure::_ref_processor
kbarrett
parents:
33224
diff
changeset
|
111 |
set_ref_processor_internal(rp); |
19cb9b844190
8139341: Hide ExtendedOopClosure::_ref_processor
kbarrett
parents:
33224
diff
changeset
|
112 |
} |
1374 | 113 |
}; |
114 |
||
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13336
diff
changeset
|
115 |
// Add back base class for metadata |
35067
0fa08ea22241
8144505: Change G1ParCopyHelper to inherit OopClosure
sjohanss
parents:
35062
diff
changeset
|
116 |
class G1ParCopyHelper : public OopClosure { |
22901
3b4e9802e94f
8027559: Decrease code size and templatizing in G1ParCopyClosure::do_oop_work
tschatzl
parents:
22761
diff
changeset
|
117 |
protected: |
35067
0fa08ea22241
8144505: Change G1ParCopyHelper to inherit OopClosure
sjohanss
parents:
35062
diff
changeset
|
118 |
G1CollectedHeap* _g1; |
0fa08ea22241
8144505: Change G1ParCopyHelper to inherit OopClosure
sjohanss
parents:
35062
diff
changeset
|
119 |
G1ParScanThreadState* _par_scan_state; |
33224
bc5da96c1f0e
8139200: Eliminate G1ParClosureSuper::_worker_id
kbarrett
parents:
33213
diff
changeset
|
120 |
uint _worker_id; // Cache value from par_scan_state. |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13336
diff
changeset
|
121 |
Klass* _scanned_klass; |
35943
e726308008c0
8148973: Rename g1/concurrentMark.{hpp,cpp,inline.hpp} to g1/g1ConcurrentMark.{hpp,cpp,inline.hpp}
ehelin
parents:
35862
diff
changeset
|
122 |
G1ConcurrentMark* _cm; |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13336
diff
changeset
|
123 |
|
22901
3b4e9802e94f
8027559: Decrease code size and templatizing in G1ParCopyClosure::do_oop_work
tschatzl
parents:
22761
diff
changeset
|
124 |
// Mark the object if it's not already marked. This is used to mark |
3b4e9802e94f
8027559: Decrease code size and templatizing in G1ParCopyClosure::do_oop_work
tschatzl
parents:
22761
diff
changeset
|
125 |
// objects pointed to by roots that are guaranteed not to move |
3b4e9802e94f
8027559: Decrease code size and templatizing in G1ParCopyClosure::do_oop_work
tschatzl
parents:
22761
diff
changeset
|
126 |
// during the GC (i.e., non-CSet objects). It is MT-safe. |
33213
b937f634f56e
8138762: Refactor setup of evacuation closures in G1
mgerdin
parents:
32592
diff
changeset
|
127 |
inline void mark_object(oop obj); |
22901
3b4e9802e94f
8027559: Decrease code size and templatizing in G1ParCopyClosure::do_oop_work
tschatzl
parents:
22761
diff
changeset
|
128 |
|
3b4e9802e94f
8027559: Decrease code size and templatizing in G1ParCopyClosure::do_oop_work
tschatzl
parents:
22761
diff
changeset
|
129 |
// Mark the object if it's not already marked. This is used to mark |
3b4e9802e94f
8027559: Decrease code size and templatizing in G1ParCopyClosure::do_oop_work
tschatzl
parents:
22761
diff
changeset
|
130 |
// objects pointed to by roots that have been forwarded during a |
3b4e9802e94f
8027559: Decrease code size and templatizing in G1ParCopyClosure::do_oop_work
tschatzl
parents:
22761
diff
changeset
|
131 |
// GC. It is MT-safe. |
33213
b937f634f56e
8138762: Refactor setup of evacuation closures in G1
mgerdin
parents:
32592
diff
changeset
|
132 |
inline void mark_forwarded_object(oop from_obj, oop to_obj); |
33224
bc5da96c1f0e
8139200: Eliminate G1ParClosureSuper::_worker_id
kbarrett
parents:
33213
diff
changeset
|
133 |
|
22901
3b4e9802e94f
8027559: Decrease code size and templatizing in G1ParCopyClosure::do_oop_work
tschatzl
parents:
22761
diff
changeset
|
134 |
G1ParCopyHelper(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state); |
33224
bc5da96c1f0e
8139200: Eliminate G1ParClosureSuper::_worker_id
kbarrett
parents:
33213
diff
changeset
|
135 |
~G1ParCopyHelper() { } |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13336
diff
changeset
|
136 |
|
33224
bc5da96c1f0e
8139200: Eliminate G1ParClosureSuper::_worker_id
kbarrett
parents:
33213
diff
changeset
|
137 |
public: |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13336
diff
changeset
|
138 |
void set_scanned_klass(Klass* k) { _scanned_klass = k; } |
33213
b937f634f56e
8138762: Refactor setup of evacuation closures in G1
mgerdin
parents:
32592
diff
changeset
|
139 |
template <class T> inline void do_klass_barrier(T* p, oop new_obj); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13336
diff
changeset
|
140 |
}; |
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13336
diff
changeset
|
141 |
|
29688 | 142 |
enum G1Barrier { |
143 |
G1BarrierNone, |
|
144 |
G1BarrierKlass |
|
145 |
}; |
|
146 |
||
147 |
enum G1Mark { |
|
148 |
G1MarkNone, |
|
149 |
G1MarkFromRoot, |
|
150 |
G1MarkPromotedFromRoot |
|
151 |
}; |
|
152 |
||
35051
002d874a4284
8144714: Add extension point to G1 evacuation closures
mgerdin
parents:
34245
diff
changeset
|
153 |
template <G1Barrier barrier, G1Mark do_mark_object, bool use_ext> |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
13336
diff
changeset
|
154 |
class G1ParCopyClosure : public G1ParCopyHelper { |
1374 | 155 |
public: |
32592
d066afd32088
8134509: G1ParCopyClosure does not need a ReferenceProcessor
ehelin
parents:
32381
diff
changeset
|
156 |
G1ParCopyClosure(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state) : |
35067
0fa08ea22241
8144505: Change G1ParCopyHelper to inherit OopClosure
sjohanss
parents:
35062
diff
changeset
|
157 |
G1ParCopyHelper(g1, par_scan_state) { } |
10670
4ea0e7d2ffbc
6484982: G1: process references during evacuation pauses
johnc
parents:
10664
diff
changeset
|
158 |
|
35067
0fa08ea22241
8144505: Change G1ParCopyHelper to inherit OopClosure
sjohanss
parents:
35062
diff
changeset
|
159 |
template <class T> void do_oop_work(T* p); |
0fa08ea22241
8144505: Change G1ParCopyHelper to inherit OopClosure
sjohanss
parents:
35062
diff
changeset
|
160 |
virtual void do_oop(oop* p) { do_oop_work(p); } |
0fa08ea22241
8144505: Change G1ParCopyHelper to inherit OopClosure
sjohanss
parents:
35062
diff
changeset
|
161 |
virtual void do_oop(narrowOop* p) { do_oop_work(p); } |
1374 | 162 |
}; |
163 |
||
33213
b937f634f56e
8138762: Refactor setup of evacuation closures in G1
mgerdin
parents:
32592
diff
changeset
|
164 |
class G1KlassScanClosure : public KlassClosure { |
b937f634f56e
8138762: Refactor setup of evacuation closures in G1
mgerdin
parents:
32592
diff
changeset
|
165 |
G1ParCopyHelper* _closure; |
b937f634f56e
8138762: Refactor setup of evacuation closures in G1
mgerdin
parents:
32592
diff
changeset
|
166 |
bool _process_only_dirty; |
b937f634f56e
8138762: Refactor setup of evacuation closures in G1
mgerdin
parents:
32592
diff
changeset
|
167 |
int _count; |
b937f634f56e
8138762: Refactor setup of evacuation closures in G1
mgerdin
parents:
32592
diff
changeset
|
168 |
public: |
b937f634f56e
8138762: Refactor setup of evacuation closures in G1
mgerdin
parents:
32592
diff
changeset
|
169 |
G1KlassScanClosure(G1ParCopyHelper* closure, bool process_only_dirty) |
b937f634f56e
8138762: Refactor setup of evacuation closures in G1
mgerdin
parents:
32592
diff
changeset
|
170 |
: _process_only_dirty(process_only_dirty), _closure(closure), _count(0) {} |
b937f634f56e
8138762: Refactor setup of evacuation closures in G1
mgerdin
parents:
32592
diff
changeset
|
171 |
void do_klass(Klass* klass); |
b937f634f56e
8138762: Refactor setup of evacuation closures in G1
mgerdin
parents:
32592
diff
changeset
|
172 |
}; |
10670
4ea0e7d2ffbc
6484982: G1: process references during evacuation pauses
johnc
parents:
10664
diff
changeset
|
173 |
|
9994 | 174 |
// Closure for iterating over object fields during concurrent marking |
25492
d27050bdfb04
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
25491
diff
changeset
|
175 |
class G1CMOopClosure : public MetadataAwareOopClosure { |
d27050bdfb04
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
25491
diff
changeset
|
176 |
protected: |
35943
e726308008c0
8148973: Rename g1/concurrentMark.{hpp,cpp,inline.hpp} to g1/g1ConcurrentMark.{hpp,cpp,inline.hpp}
ehelin
parents:
35862
diff
changeset
|
177 |
G1ConcurrentMark* _cm; |
11584
e1df4d08a1f4
7127706: G1: re-enable survivors during the initial-mark pause
tonyp
parents:
11583
diff
changeset
|
178 |
private: |
9994 | 179 |
G1CollectedHeap* _g1h; |
35943
e726308008c0
8148973: Rename g1/concurrentMark.{hpp,cpp,inline.hpp} to g1/g1ConcurrentMark.{hpp,cpp,inline.hpp}
ehelin
parents:
35862
diff
changeset
|
180 |
G1CMTask* _task; |
9994 | 181 |
public: |
35943
e726308008c0
8148973: Rename g1/concurrentMark.{hpp,cpp,inline.hpp} to g1/g1ConcurrentMark.{hpp,cpp,inline.hpp}
ehelin
parents:
35862
diff
changeset
|
182 |
G1CMOopClosure(G1CollectedHeap* g1h, G1ConcurrentMark* cm, G1CMTask* task); |
9994 | 183 |
template <class T> void do_oop_nv(T* p); |
184 |
virtual void do_oop( oop* p) { do_oop_nv(p); } |
|
185 |
virtual void do_oop(narrowOop* p) { do_oop_nv(p); } |
|
186 |
}; |
|
187 |
||
11584
e1df4d08a1f4
7127706: G1: re-enable survivors during the initial-mark pause
tonyp
parents:
11583
diff
changeset
|
188 |
// Closure to scan the root regions during concurrent marking |
25492
d27050bdfb04
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
25491
diff
changeset
|
189 |
class G1RootRegionScanClosure : public MetadataAwareOopClosure { |
11584
e1df4d08a1f4
7127706: G1: re-enable survivors during the initial-mark pause
tonyp
parents:
11583
diff
changeset
|
190 |
private: |
e1df4d08a1f4
7127706: G1: re-enable survivors during the initial-mark pause
tonyp
parents:
11583
diff
changeset
|
191 |
G1CollectedHeap* _g1h; |
35943
e726308008c0
8148973: Rename g1/concurrentMark.{hpp,cpp,inline.hpp} to g1/g1ConcurrentMark.{hpp,cpp,inline.hpp}
ehelin
parents:
35862
diff
changeset
|
192 |
G1ConcurrentMark* _cm; |
11584
e1df4d08a1f4
7127706: G1: re-enable survivors during the initial-mark pause
tonyp
parents:
11583
diff
changeset
|
193 |
public: |
37414
2672ba9af0dc
8151386: Extract card live data out of G1ConcurrentMark
tschatzl
parents:
35943
diff
changeset
|
194 |
G1RootRegionScanClosure(G1CollectedHeap* g1h, G1ConcurrentMark* cm) : |
2672ba9af0dc
8151386: Extract card live data out of G1ConcurrentMark
tschatzl
parents:
35943
diff
changeset
|
195 |
_g1h(g1h), _cm(cm) { } |
11584
e1df4d08a1f4
7127706: G1: re-enable survivors during the initial-mark pause
tonyp
parents:
11583
diff
changeset
|
196 |
template <class T> void do_oop_nv(T* p); |
e1df4d08a1f4
7127706: G1: re-enable survivors during the initial-mark pause
tonyp
parents:
11583
diff
changeset
|
197 |
virtual void do_oop( oop* p) { do_oop_nv(p); } |
e1df4d08a1f4
7127706: G1: re-enable survivors during the initial-mark pause
tonyp
parents:
11583
diff
changeset
|
198 |
virtual void do_oop(narrowOop* p) { do_oop_nv(p); } |
e1df4d08a1f4
7127706: G1: re-enable survivors during the initial-mark pause
tonyp
parents:
11583
diff
changeset
|
199 |
}; |
e1df4d08a1f4
7127706: G1: re-enable survivors during the initial-mark pause
tonyp
parents:
11583
diff
changeset
|
200 |
|
46519
40c9c132f961
8177707: Specialize G1RemSet::refine_card for concurrent/during safepoint refinement
tschatzl
parents:
46445
diff
changeset
|
201 |
class G1ConcurrentRefineOopClosure: public ExtendedOopClosure { |
40c9c132f961
8177707: Specialize G1RemSet::refine_card for concurrent/during safepoint refinement
tschatzl
parents:
46445
diff
changeset
|
202 |
G1CollectedHeap* _g1; |
40c9c132f961
8177707: Specialize G1RemSet::refine_card for concurrent/during safepoint refinement
tschatzl
parents:
46445
diff
changeset
|
203 |
uint _worker_i; |
40c9c132f961
8177707: Specialize G1RemSet::refine_card for concurrent/during safepoint refinement
tschatzl
parents:
46445
diff
changeset
|
204 |
|
40c9c132f961
8177707: Specialize G1RemSet::refine_card for concurrent/during safepoint refinement
tschatzl
parents:
46445
diff
changeset
|
205 |
public: |
40c9c132f961
8177707: Specialize G1RemSet::refine_card for concurrent/during safepoint refinement
tschatzl
parents:
46445
diff
changeset
|
206 |
G1ConcurrentRefineOopClosure(G1CollectedHeap* g1h, uint worker_i) : |
40c9c132f961
8177707: Specialize G1RemSet::refine_card for concurrent/during safepoint refinement
tschatzl
parents:
46445
diff
changeset
|
207 |
_g1(g1h), |
40c9c132f961
8177707: Specialize G1RemSet::refine_card for concurrent/during safepoint refinement
tschatzl
parents:
46445
diff
changeset
|
208 |
_worker_i(worker_i) { |
40c9c132f961
8177707: Specialize G1RemSet::refine_card for concurrent/during safepoint refinement
tschatzl
parents:
46445
diff
changeset
|
209 |
} |
40c9c132f961
8177707: Specialize G1RemSet::refine_card for concurrent/during safepoint refinement
tschatzl
parents:
46445
diff
changeset
|
210 |
|
40c9c132f961
8177707: Specialize G1RemSet::refine_card for concurrent/during safepoint refinement
tschatzl
parents:
46445
diff
changeset
|
211 |
// This closure needs special handling for InstanceRefKlass. |
40c9c132f961
8177707: Specialize G1RemSet::refine_card for concurrent/during safepoint refinement
tschatzl
parents:
46445
diff
changeset
|
212 |
virtual ReferenceIterationMode reference_iteration_mode() { return DO_DISCOVERED_AND_DISCOVERY; } |
40c9c132f961
8177707: Specialize G1RemSet::refine_card for concurrent/during safepoint refinement
tschatzl
parents:
46445
diff
changeset
|
213 |
|
40c9c132f961
8177707: Specialize G1RemSet::refine_card for concurrent/during safepoint refinement
tschatzl
parents:
46445
diff
changeset
|
214 |
template <class T> void do_oop_nv(T* p); |
40c9c132f961
8177707: Specialize G1RemSet::refine_card for concurrent/during safepoint refinement
tschatzl
parents:
46445
diff
changeset
|
215 |
virtual void do_oop(narrowOop* p) { do_oop_nv(p); } |
46572 | 216 |
virtual void do_oop(oop* p) { do_oop_nv(p); } |
11586
ccc217c177ee
7133038: G1: Some small profile based optimizations
johnc
parents:
11584
diff
changeset
|
217 |
}; |
ccc217c177ee
7133038: G1: Some small profile based optimizations
johnc
parents:
11584
diff
changeset
|
218 |
|
30764 | 219 |
#endif // SHARE_VM_GC_G1_G1OOPCLOSURES_HPP |