1 /*
2 * Copyright (c) 2001, 2016, 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 *
97 }
98 }
99 }
100
101 template <class T>
102 inline void G1ParPushHeapRSClosure::do_oop_nv(T* p) {
103 T heap_oop = oopDesc::load_heap_oop(p);
104
105 if (!oopDesc::is_null(heap_oop)) {
106 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);
107 const InCSetState state = _g1->in_cset_state(obj);
108 if (state.is_in_cset_or_humongous()) {
109 Prefetch::write(obj->mark_addr(), 0);
110 Prefetch::read(obj->mark_addr(), (HeapWordSize*2));
111
112 // Place on the references queue
113 _par_scan_state->push_on_queue(p);
114 } else if (state.is_ext()) {
115 _par_scan_state->do_oop_ext(p);
116 } else {
117 assert(!_g1->obj_in_cs(obj), "checking");
118 }
119 }
120 }
121
122 template <class T>
123 inline void G1CMOopClosure::do_oop_nv(T* p) {
124 oop obj = oopDesc::load_decode_heap_oop(p);
125 _task->deal_with_reference(obj);
126 }
127
128 template <class T>
129 inline void G1RootRegionScanClosure::do_oop_nv(T* p) {
130 T heap_oop = oopDesc::load_heap_oop(p);
131 if (!oopDesc::is_null(heap_oop)) {
132 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);
133 HeapRegion* hr = _g1h->heap_region_containing((HeapWord*) obj);
134 _cm->grayRoot(obj, hr);
135 }
136 }
137
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1 /*
2 * Copyright (c) 2001, 2017, 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 *
97 }
98 }
99 }
100
101 template <class T>
102 inline void G1ParPushHeapRSClosure::do_oop_nv(T* p) {
103 T heap_oop = oopDesc::load_heap_oop(p);
104
105 if (!oopDesc::is_null(heap_oop)) {
106 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);
107 const InCSetState state = _g1->in_cset_state(obj);
108 if (state.is_in_cset_or_humongous()) {
109 Prefetch::write(obj->mark_addr(), 0);
110 Prefetch::read(obj->mark_addr(), (HeapWordSize*2));
111
112 // Place on the references queue
113 _par_scan_state->push_on_queue(p);
114 } else if (state.is_ext()) {
115 _par_scan_state->do_oop_ext(p);
116 } else {
117 assert(!_g1->is_in_cset(obj), "checking");
118 }
119 }
120 }
121
122 template <class T>
123 inline void G1CMOopClosure::do_oop_nv(T* p) {
124 oop obj = oopDesc::load_decode_heap_oop(p);
125 _task->deal_with_reference(obj);
126 }
127
128 template <class T>
129 inline void G1RootRegionScanClosure::do_oop_nv(T* p) {
130 T heap_oop = oopDesc::load_heap_oop(p);
131 if (!oopDesc::is_null(heap_oop)) {
132 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);
133 HeapRegion* hr = _g1h->heap_region_containing((HeapWord*) obj);
134 _cm->grayRoot(obj, hr);
135 }
136 }
137
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