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annotate src/share/vm/gc_implementation/g1/heapRegionType.cpp @ 20481:c02ec279b062

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8057768: Make heap region region type in G1 HeapRegion explicit Reviewed-by: brutisso, tschatzl
author brutisso
date Tue, 16 Sep 2014 14:27:40 +0200
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20481
c02ec279b062 8057768: Make heap region region type in G1 HeapRegion explicit
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1 /*
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2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 #include "precompiled.hpp"
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26 #include "gc_implementation/g1/heapRegionType.hpp"
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27
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28 bool HeapRegionType::is_valid(Tag tag) {
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29 switch (tag) {
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30 case FreeTag:
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31 case EdenTag:
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32 case SurvTag:
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33 case HumStartsTag:
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34 case HumContTag:
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35 case OldTag:
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36 return true;
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37 }
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38 return false;
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39 }
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40
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41 const char* HeapRegionType::get_str() const {
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42 hrt_assert_is_valid(_tag);
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43 switch (_tag) {
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44 case FreeTag: return "FREE";
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45 case EdenTag: return "EDEN";
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46 case SurvTag: return "SURV";
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47 case HumStartsTag: return "HUMS";
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48 case HumContTag: return "HUMC";
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49 case OldTag: return "OLD";
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50 }
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51 ShouldNotReachHere();
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52 // keep some compilers happy
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53 return NULL;
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54 }
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55
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56 const char* HeapRegionType::get_short_str() const {
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57 hrt_assert_is_valid(_tag);
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58 switch (_tag) {
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59 case FreeTag: return "F";
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60 case EdenTag: return "E";
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61 case SurvTag: return "S";
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62 case HumStartsTag: return "HS";
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63 case HumContTag: return "HC";
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64 case OldTag: return "O";
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65 }
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66 ShouldNotReachHere();
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67 // keep some compilers happy
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68 return NULL;
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69 }