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.
  22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "gc/g1/heapRegionType.hpp"
  27 
  28 bool 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 
  41 const 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 
  56 const 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 }