Mercurial > hg > truffle
comparison src/share/vm/gc_implementation/g1/g1OopClosures.hpp @ 342:37f87013dfd8
6711316: Open source the Garbage-First garbage collector
Summary: First mercurial integration of the code for the Garbage-First garbage collector.
Reviewed-by: apetrusenko, iveresov, jmasa, sgoldman, tonyp, ysr
author | ysr |
---|---|
date | Thu, 05 Jun 2008 15:57:56 -0700 |
parents | |
children | 818efdefcc99 |
comparison
equal
deleted
inserted
replaced
189:0b27f3512f9e | 342:37f87013dfd8 |
---|---|
1 /* | |
2 * Copyright 2001-2007 Sun Microsystems, Inc. All Rights Reserved. | |
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 * | |
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 class HeapRegion; | |
26 class G1CollectedHeap; | |
27 class G1RemSet; | |
28 class HRInto_G1RemSet; | |
29 class G1RemSet; | |
30 class ConcurrentMark; | |
31 class DirtyCardToOopClosure; | |
32 class CMBitMap; | |
33 class CMMarkStack; | |
34 class G1ParScanThreadState; | |
35 | |
36 // A class that scans oops in a given heap region (much as OopsInGenClosure | |
37 // scans oops in a generation.) | |
38 class OopsInHeapRegionClosure: public OopsInGenClosure { | |
39 protected: | |
40 HeapRegion* _from; | |
41 public: | |
42 virtual void set_region(HeapRegion* from) { _from = from; } | |
43 }; | |
44 | |
45 | |
46 class G1ScanAndBalanceClosure : public OopClosure { | |
47 G1CollectedHeap* _g1; | |
48 static int _nq; | |
49 public: | |
50 G1ScanAndBalanceClosure(G1CollectedHeap* g1) : _g1(g1) { } | |
51 inline void do_oop_nv(oop* p); | |
52 inline void do_oop_nv(narrowOop* p) { guarantee(false, "NYI"); } | |
53 virtual void do_oop(oop* p); | |
54 virtual void do_oop(narrowOop* p) { guarantee(false, "NYI"); } | |
55 }; | |
56 | |
57 class G1ParClosureSuper : public OopsInHeapRegionClosure { | |
58 protected: | |
59 G1CollectedHeap* _g1; | |
60 G1RemSet* _g1_rem; | |
61 ConcurrentMark* _cm; | |
62 G1ParScanThreadState* _par_scan_state; | |
63 public: | |
64 G1ParClosureSuper(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state); | |
65 bool apply_to_weak_ref_discovered_field() { return true; } | |
66 }; | |
67 | |
68 class G1ParScanClosure : public G1ParClosureSuper { | |
69 public: | |
70 G1ParScanClosure(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state) : | |
71 G1ParClosureSuper(g1, par_scan_state) { } | |
72 void do_oop_nv(oop* p); // should be made inline | |
73 inline void do_oop_nv(narrowOop* p) { guarantee(false, "NYI"); } | |
74 virtual void do_oop(oop* p) { do_oop_nv(p); } | |
75 virtual void do_oop(narrowOop* p) { do_oop_nv(p); } | |
76 }; | |
77 | |
78 #define G1_PARTIAL_ARRAY_MASK 1 | |
79 | |
80 class G1ParScanPartialArrayClosure : public G1ParClosureSuper { | |
81 G1ParScanClosure _scanner; | |
82 template <class T> void process_array_chunk(oop obj, int start, int end); | |
83 public: | |
84 G1ParScanPartialArrayClosure(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state) : | |
85 G1ParClosureSuper(g1, par_scan_state), _scanner(g1, par_scan_state) { } | |
86 void do_oop_nv(oop* p); | |
87 void do_oop_nv(narrowOop* p) { guarantee(false, "NYI"); } | |
88 virtual void do_oop(oop* p) { do_oop_nv(p); } | |
89 virtual void do_oop(narrowOop* p) { do_oop_nv(p); } | |
90 }; | |
91 | |
92 | |
93 class G1ParCopyHelper : public G1ParClosureSuper { | |
94 G1ParScanClosure *_scanner; | |
95 protected: | |
96 void mark_forwardee(oop* p); | |
97 oop copy_to_survivor_space(oop obj); | |
98 public: | |
99 G1ParCopyHelper(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state, | |
100 G1ParScanClosure *scanner) : | |
101 G1ParClosureSuper(g1, par_scan_state), _scanner(scanner) { } | |
102 }; | |
103 | |
104 template<bool do_gen_barrier, G1Barrier barrier, bool do_mark_forwardee> | |
105 class G1ParCopyClosure : public G1ParCopyHelper { | |
106 G1ParScanClosure _scanner; | |
107 void do_oop_work(oop* p); | |
108 void do_oop_work(narrowOop* p) { guarantee(false, "NYI"); } | |
109 public: | |
110 G1ParCopyClosure(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state) : | |
111 _scanner(g1, par_scan_state), G1ParCopyHelper(g1, par_scan_state, &_scanner) { } | |
112 inline void do_oop_nv(oop* p) { | |
113 do_oop_work(p); | |
114 if (do_mark_forwardee) | |
115 mark_forwardee(p); | |
116 } | |
117 inline void do_oop_nv(narrowOop* p) { guarantee(false, "NYI"); } | |
118 virtual void do_oop(oop* p) { do_oop_nv(p); } | |
119 virtual void do_oop(narrowOop* p) { do_oop_nv(p); } | |
120 }; | |
121 | |
122 typedef G1ParCopyClosure<false, G1BarrierNone, false> G1ParScanExtRootClosure; | |
123 typedef G1ParCopyClosure<true, G1BarrierNone, false> G1ParScanPermClosure; | |
124 typedef G1ParCopyClosure<false, G1BarrierNone, true> G1ParScanAndMarkExtRootClosure; | |
125 typedef G1ParCopyClosure<true, G1BarrierNone, true> G1ParScanAndMarkPermClosure; | |
126 typedef G1ParCopyClosure<false, G1BarrierRS, false> G1ParScanHeapRSClosure; | |
127 typedef G1ParCopyClosure<false, G1BarrierRS, true> G1ParScanAndMarkHeapRSClosure; | |
128 typedef G1ParCopyClosure<false, G1BarrierEvac, false> G1ParScanHeapEvacClosure; | |
129 | |
130 | |
131 class FilterIntoCSClosure: public OopClosure { | |
132 G1CollectedHeap* _g1; | |
133 OopClosure* _oc; | |
134 DirtyCardToOopClosure* _dcto_cl; | |
135 public: | |
136 FilterIntoCSClosure( DirtyCardToOopClosure* dcto_cl, | |
137 G1CollectedHeap* g1, OopClosure* oc) : | |
138 _dcto_cl(dcto_cl), _g1(g1), _oc(oc) | |
139 {} | |
140 inline void do_oop_nv(oop* p); | |
141 inline void do_oop_nv(narrowOop* p) { guarantee(false, "NYI"); } | |
142 virtual void do_oop(oop* p); | |
143 virtual void do_oop(narrowOop* p) { guarantee(false, "NYI"); } | |
144 bool apply_to_weak_ref_discovered_field() { return true; } | |
145 bool do_header() { return false; } | |
146 }; | |
147 | |
148 class FilterInHeapRegionAndIntoCSClosure : public OopsInHeapRegionClosure { | |
149 G1CollectedHeap* _g1; | |
150 OopsInHeapRegionClosure* _oc; | |
151 public: | |
152 FilterInHeapRegionAndIntoCSClosure(G1CollectedHeap* g1, | |
153 OopsInHeapRegionClosure* oc) : | |
154 _g1(g1), _oc(oc) | |
155 {} | |
156 inline void do_oop_nv(oop* p); | |
157 inline void do_oop_nv(narrowOop* p) { guarantee(false, "NYI"); } | |
158 virtual void do_oop(oop* p); | |
159 virtual void do_oop(narrowOop* p) { guarantee(false, "NYI"); } | |
160 bool apply_to_weak_ref_discovered_field() { return true; } | |
161 bool do_header() { return false; } | |
162 void set_region(HeapRegion* from) { | |
163 _oc->set_region(from); | |
164 } | |
165 }; | |
166 | |
167 class FilterAndMarkInHeapRegionAndIntoCSClosure : public OopsInHeapRegionClosure { | |
168 G1CollectedHeap* _g1; | |
169 ConcurrentMark* _cm; | |
170 OopsInHeapRegionClosure* _oc; | |
171 public: | |
172 FilterAndMarkInHeapRegionAndIntoCSClosure(G1CollectedHeap* g1, | |
173 OopsInHeapRegionClosure* oc, | |
174 ConcurrentMark* cm) | |
175 : _g1(g1), _oc(oc), _cm(cm) { } | |
176 | |
177 inline void do_oop_nv(oop* p); | |
178 inline void do_oop_nv(narrowOop* p) { guarantee(false, "NYI"); } | |
179 virtual void do_oop(oop* p); | |
180 virtual void do_oop(narrowOop* p) { guarantee(false, "NYI"); } | |
181 bool apply_to_weak_ref_discovered_field() { return true; } | |
182 bool do_header() { return false; } | |
183 void set_region(HeapRegion* from) { | |
184 _oc->set_region(from); | |
185 } | |
186 }; | |
187 | |
188 class FilterOutOfRegionClosure: public OopClosure { | |
189 HeapWord* _r_bottom; | |
190 HeapWord* _r_end; | |
191 OopClosure* _oc; | |
192 int _out_of_region; | |
193 public: | |
194 FilterOutOfRegionClosure(HeapRegion* r, OopClosure* oc); | |
195 inline void do_oop_nv(oop* p); | |
196 inline void do_oop_nv(narrowOop* p) { guarantee(false, "NYI"); } | |
197 virtual void do_oop(oop* p); | |
198 virtual void do_oop(narrowOop* p) { guarantee(false, "NYI"); } | |
199 bool apply_to_weak_ref_discovered_field() { return true; } | |
200 bool do_header() { return false; } | |
201 int out_of_region() { return _out_of_region; } | |
202 }; |