1 /* |
|
2 * Copyright (c) 2007, 2019, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
20 * or visit www.oracle.com if you need additional information or have any |
|
21 * questions. |
|
22 * |
|
23 */ |
|
24 |
|
25 #ifndef SHARE_GC_CMS_CMSOOPCLOSURES_INLINE_HPP |
|
26 #define SHARE_GC_CMS_CMSOOPCLOSURES_INLINE_HPP |
|
27 |
|
28 #include "gc/cms/cmsOopClosures.hpp" |
|
29 #include "gc/cms/concurrentMarkSweepGeneration.hpp" |
|
30 #include "gc/shared/taskqueue.inline.hpp" |
|
31 #include "oops/access.inline.hpp" |
|
32 #include "oops/compressedOops.inline.hpp" |
|
33 #include "oops/oop.inline.hpp" |
|
34 |
|
35 // MetadataVisitingOopIterateClosure and MetadataVisitingOopsInGenClosure are duplicated, |
|
36 // until we get rid of OopsInGenClosure. |
|
37 |
|
38 inline void MetadataVisitingOopsInGenClosure::do_klass(Klass* k) { |
|
39 ClassLoaderData* cld = k->class_loader_data(); |
|
40 MetadataVisitingOopsInGenClosure::do_cld(cld); |
|
41 } |
|
42 |
|
43 inline void MetadataVisitingOopsInGenClosure::do_cld(ClassLoaderData* cld) { |
|
44 cld->oops_do(this, ClassLoaderData::_claim_strong); |
|
45 } |
|
46 |
|
47 // Decode the oop and call do_oop on it. |
|
48 #define DO_OOP_WORK_IMPL(cls) \ |
|
49 template <class T> void cls::do_oop_work(T* p) { \ |
|
50 T heap_oop = RawAccess<>::oop_load(p); \ |
|
51 if (!CompressedOops::is_null(heap_oop)) { \ |
|
52 oop obj = CompressedOops::decode_not_null(heap_oop); \ |
|
53 do_oop(obj); \ |
|
54 } \ |
|
55 } \ |
|
56 inline void cls::do_oop(oop* p) { do_oop_work(p); } \ |
|
57 inline void cls::do_oop(narrowOop* p) { do_oop_work(p); } |
|
58 |
|
59 DO_OOP_WORK_IMPL(MarkRefsIntoClosure) |
|
60 DO_OOP_WORK_IMPL(ParMarkRefsIntoClosure) |
|
61 DO_OOP_WORK_IMPL(MarkRefsIntoVerifyClosure) |
|
62 DO_OOP_WORK_IMPL(PushAndMarkClosure) |
|
63 DO_OOP_WORK_IMPL(ParPushAndMarkClosure) |
|
64 DO_OOP_WORK_IMPL(MarkRefsIntoAndScanClosure) |
|
65 DO_OOP_WORK_IMPL(ParMarkRefsIntoAndScanClosure) |
|
66 |
|
67 // Trim our work_queue so its length is below max at return |
|
68 inline void ParMarkRefsIntoAndScanClosure::trim_queue(uint max) { |
|
69 while (_work_queue->size() > max) { |
|
70 oop newOop; |
|
71 if (_work_queue->pop_local(newOop)) { |
|
72 assert(oopDesc::is_oop(newOop), "Expected an oop"); |
|
73 assert(_bit_map->isMarked((HeapWord*)newOop), |
|
74 "only grey objects on this stack"); |
|
75 // iterate over the oops in this oop, marking and pushing |
|
76 // the ones in CMS heap (i.e. in _span). |
|
77 newOop->oop_iterate(&_parPushAndMarkClosure); |
|
78 } |
|
79 } |
|
80 } |
|
81 |
|
82 DO_OOP_WORK_IMPL(PushOrMarkClosure) |
|
83 DO_OOP_WORK_IMPL(ParPushOrMarkClosure) |
|
84 DO_OOP_WORK_IMPL(CMSKeepAliveClosure) |
|
85 DO_OOP_WORK_IMPL(CMSInnerParMarkAndPushClosure) |
|
86 DO_OOP_WORK_IMPL(CMSParKeepAliveClosure) |
|
87 |
|
88 #endif // SHARE_GC_CMS_CMSOOPCLOSURES_INLINE_HPP |
|