1 /*
2 * Copyright (c) 2001, 2013, 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_VM_GC_IMPLEMENTATION_G1_COLLECTIONSETCHOOSER_HPP
26 #define SHARE_VM_GC_IMPLEMENTATION_G1_COLLECTIONSETCHOOSER_HPP
27
28 #include "gc_implementation/g1/heapRegion.hpp"
29 #include "utilities/growableArray.hpp"
30
31 class CollectionSetChooser: public CHeapObj<mtGC> {
32
33 GrowableArray<HeapRegion*> _regions;
34
35 // Unfortunately, GrowableArray uses ints for length and indexes. To
36 // avoid excessive casting in the rest of the class the following
37 // wrapper methods are provided that use uints.
38
39 uint regions_length() { return (uint) _regions.length(); }
40 HeapRegion* regions_at(uint i) { return _regions.at((int) i); }
41 void regions_at_put(uint i, HeapRegion* hr) {
42 _regions.at_put((int) i, hr);
43 }
44 void regions_at_put_grow(uint i, HeapRegion* hr) {
45 _regions.at_put_grow((int) i, hr);
46 }
47 void regions_trunc_to(uint i) { _regions.trunc_to((uint) i); }
48
175
176 void add_region(HeapRegion* hr) {
177 if (_parallel) {
178 if (_cur_chunk_idx == _cur_chunk_end) {
179 _cur_chunk_idx = _chooser->claim_array_chunk(_chunk_size);
180 _cur_chunk_end = _cur_chunk_idx + _chunk_size;
181 }
182 assert(_cur_chunk_idx < _cur_chunk_end, "invariant");
183 _chooser->set_region(_cur_chunk_idx, hr);
184 _cur_chunk_idx += 1;
185 } else {
186 _chooser->add_region(hr);
187 }
188 _regions_added += 1;
189 _reclaimable_bytes_added += hr->reclaimable_bytes();
190 }
191
192 bool should_add(HeapRegion* hr) { return _chooser->should_add(hr); }
193 };
194
195 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_COLLECTIONSETCHOOSER_HPP
196
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1 /*
2 * Copyright (c) 2001, 2015, 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_VM_GC_G1_COLLECTIONSETCHOOSER_HPP
26 #define SHARE_VM_GC_G1_COLLECTIONSETCHOOSER_HPP
27
28 #include "gc/g1/heapRegion.hpp"
29 #include "utilities/growableArray.hpp"
30
31 class CollectionSetChooser: public CHeapObj<mtGC> {
32
33 GrowableArray<HeapRegion*> _regions;
34
35 // Unfortunately, GrowableArray uses ints for length and indexes. To
36 // avoid excessive casting in the rest of the class the following
37 // wrapper methods are provided that use uints.
38
39 uint regions_length() { return (uint) _regions.length(); }
40 HeapRegion* regions_at(uint i) { return _regions.at((int) i); }
41 void regions_at_put(uint i, HeapRegion* hr) {
42 _regions.at_put((int) i, hr);
43 }
44 void regions_at_put_grow(uint i, HeapRegion* hr) {
45 _regions.at_put_grow((int) i, hr);
46 }
47 void regions_trunc_to(uint i) { _regions.trunc_to((uint) i); }
48
175
176 void add_region(HeapRegion* hr) {
177 if (_parallel) {
178 if (_cur_chunk_idx == _cur_chunk_end) {
179 _cur_chunk_idx = _chooser->claim_array_chunk(_chunk_size);
180 _cur_chunk_end = _cur_chunk_idx + _chunk_size;
181 }
182 assert(_cur_chunk_idx < _cur_chunk_end, "invariant");
183 _chooser->set_region(_cur_chunk_idx, hr);
184 _cur_chunk_idx += 1;
185 } else {
186 _chooser->add_region(hr);
187 }
188 _regions_added += 1;
189 _reclaimable_bytes_added += hr->reclaimable_bytes();
190 }
191
192 bool should_add(HeapRegion* hr) { return _chooser->should_add(hr); }
193 };
194
195 #endif // SHARE_VM_GC_G1_COLLECTIONSETCHOOSER_HPP
196
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