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/g1HeapRegionTraceType.hpp"
  27 #include "gc/g1/heapRegionType.hpp"
  28 
  29 bool HeapRegionType::is_valid(Tag tag) {
  30   switch (tag) {
  31     case FreeTag:
  32     case EdenTag:
  33     case SurvTag:
  34     case StartsHumongousTag:
  35     case ContinuesHumongousTag:
  36     case OldTag:
  37     case ArchiveTag:
  38       return true;
  39   }
  40   return false;
  41 }
  42 
  43 const char* HeapRegionType::get_str() const {
  44   hrt_assert_is_valid(_tag);
  45   switch (_tag) {
  46     case FreeTag:               return "FREE";
  47     case EdenTag:               return "EDEN";
  48     case SurvTag:               return "SURV";
  49     case StartsHumongousTag:    return "HUMS";
  50     case ContinuesHumongousTag: return "HUMC";
  51     case OldTag:                return "OLD";
  52     case ArchiveTag:            return "ARC";
  53   }
  54   ShouldNotReachHere();
  55   // keep some compilers happy
  56   return NULL;
  57 }
  58 
  59 const char* HeapRegionType::get_short_str() const {
  60   hrt_assert_is_valid(_tag);
  61   switch (_tag) {
  62     case FreeTag:               return "F";
  63     case EdenTag:               return "E";
  64     case SurvTag:               return "S";
  65     case StartsHumongousTag:    return "HS";
  66     case ContinuesHumongousTag: return "HC";
  67     case OldTag:                return "O";
  68     case ArchiveTag:            return "A";
  69   }
  70   ShouldNotReachHere();
  71   // keep some compilers happy
  72   return NULL;
  73 }
  74 
  75 G1HeapRegionTraceType::Type HeapRegionType::get_trace_type() {
  76   hrt_assert_is_valid(_tag);
  77   switch (_tag) {
  78     case FreeTag:               return G1HeapRegionTraceType::Free;
  79     case EdenTag:               return G1HeapRegionTraceType::Eden;
  80     case SurvTag:               return G1HeapRegionTraceType::Survivor;
  81     case StartsHumongousTag:    return G1HeapRegionTraceType::StartsHumongous;
  82     case ContinuesHumongousTag: return G1HeapRegionTraceType::ContinuesHumongous;
  83     case OldTag:                return G1HeapRegionTraceType::Old;
  84     case ArchiveTag:            return G1HeapRegionTraceType::Archive;
  85   }
  86   ShouldNotReachHere();
  87   // keep some compilers happy
  88   return G1HeapRegionTraceType::Free;
  89 }