heapRegionType.cpp revision 8413:92457dfb91bd 
1/*
2 * Copyright (c) 2014, 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.
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23 */
24
25#include "precompiled.hpp"
26#include "gc/g1/heapRegionType.hpp"
27
28bool HeapRegionType::is_valid(Tag tag) {
29  switch (tag) {
30    case FreeTag:
31    case EdenTag:
32    case SurvTag:
33    case StartsHumongousTag:
34    case ContinuesHumongousTag:
35    case OldTag:
36      return true;
37  }
38  return false;
39}
40
41const char* HeapRegionType::get_str() const {
42  hrt_assert_is_valid(_tag);
43  switch (_tag) {
44    case FreeTag:               return "FREE";
45    case EdenTag:               return "EDEN";
46    case SurvTag:               return "SURV";
47    case StartsHumongousTag:    return "HUMS";
48    case ContinuesHumongousTag: return "HUMC";
49    case OldTag:                return "OLD";
50  }
51  ShouldNotReachHere();
52  // keep some compilers happy
53  return NULL;
54}
55
56const char* HeapRegionType::get_short_str() const {
57  hrt_assert_is_valid(_tag);
58  switch (_tag) {
59    case FreeTag:               return "F";
60    case EdenTag:               return "E";
61    case SurvTag:               return "S";
62    case StartsHumongousTag:    return "HS";
63    case ContinuesHumongousTag: return "HC";
64    case OldTag:                return "O";
65  }
66  ShouldNotReachHere();
67  // keep some compilers happy
68  return NULL;
69}
70