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#include "precompiled.hpp"
26#include "gc/serial/defNewGeneration.hpp"
27#include "gc/serial/tenuredGeneration.hpp"
28#include "gc/shared/cardTableRS.hpp"
29#include "gc/shared/generationSpec.hpp"
30#include "memory/binaryTreeDictionary.hpp"
31#include "memory/filemap.hpp"
32#include "runtime/java.hpp"
33#include "utilities/macros.hpp"
34#if INCLUDE_ALL_GCS
35#include "gc/cms/concurrentMarkSweepGeneration.hpp"
36#include "gc/cms/parNewGeneration.hpp"
37#endif // INCLUDE_ALL_GCS
38
39Generation* GenerationSpec::init(ReservedSpace rs, CardTableRS* remset) {
40  switch (name()) {
41    case Generation::DefNew:
42      return new DefNewGeneration(rs, init_size());
43
44    case Generation::MarkSweepCompact:
45      return new TenuredGeneration(rs, init_size(), remset);
46
47#if INCLUDE_ALL_GCS
48    case Generation::ParNew:
49      return new ParNewGeneration(rs, init_size());
50
51    case Generation::ConcurrentMarkSweep: {
52      assert(UseConcMarkSweepGC, "UseConcMarkSweepGC should be set");
53      if (remset == NULL) {
54        vm_exit_during_initialization("Rem set incompatibility.");
55      }
56      // Otherwise
57      // The constructor creates the CMSCollector if needed,
58      // else registers with an existing CMSCollector
59
60      ConcurrentMarkSweepGeneration* g = NULL;
61      g = new ConcurrentMarkSweepGeneration(rs, init_size(), remset);
62
63      g->initialize_performance_counters();
64
65      return g;
66    }
67#endif // INCLUDE_ALL_GCS
68
69    default:
70      guarantee(false, "unrecognized GenerationName");
71      return NULL;
72  }
73}
74