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src/hotspot/share/gc/g1/heapRegionManager.cpp

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rev 53923 : [mq]: 8219747-remove-g1-prefix
   1 /*
   2  * Copyright (c) 2001, 2018, 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  *


  52     }
  53   }
  54   bool is_correct_type(HeapRegion* hr) { return hr->is_free(); }
  55   const char* get_description() { return "Free Regions"; }
  56 };
  57 
  58 HeapRegionManager::HeapRegionManager() :
  59   _bot_mapper(NULL),
  60   _cardtable_mapper(NULL),
  61   _card_counts_mapper(NULL),
  62   _available_map(mtGC),
  63   _num_committed(0),
  64   _allocated_heapregions_length(0),
  65   _regions(), _heap_mapper(NULL),
  66   _prev_bitmap_mapper(NULL),
  67   _next_bitmap_mapper(NULL),
  68   _free_list("Free list", new MasterFreeRegionListChecker())
  69 { }
  70 
  71 HeapRegionManager* HeapRegionManager::create_manager(G1CollectedHeap* heap, G1CollectorPolicy* policy) {
  72   if (policy->is_hetero_heap()) {
  73     return new HeterogeneousHeapRegionManager((uint)(policy->max_heap_byte_size() / HeapRegion::GrainBytes) /*heap size as num of regions*/);
  74   }
  75   return new HeapRegionManager();
  76 }
  77 
  78 void HeapRegionManager::initialize(G1RegionToSpaceMapper* heap_storage,
  79                                G1RegionToSpaceMapper* prev_bitmap,
  80                                G1RegionToSpaceMapper* next_bitmap,
  81                                G1RegionToSpaceMapper* bot,
  82                                G1RegionToSpaceMapper* cardtable,
  83                                G1RegionToSpaceMapper* card_counts) {
  84   _allocated_heapregions_length = 0;
  85 
  86   _heap_mapper = heap_storage;
  87 
  88   _prev_bitmap_mapper = prev_bitmap;
  89   _next_bitmap_mapper = next_bitmap;
  90 
  91   _bot_mapper = bot;
  92   _cardtable_mapper = cardtable;


   1 /*
   2  * Copyright (c) 2001, 2019, 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  *


  52     }
  53   }
  54   bool is_correct_type(HeapRegion* hr) { return hr->is_free(); }
  55   const char* get_description() { return "Free Regions"; }
  56 };
  57 
  58 HeapRegionManager::HeapRegionManager() :
  59   _bot_mapper(NULL),
  60   _cardtable_mapper(NULL),
  61   _card_counts_mapper(NULL),
  62   _available_map(mtGC),
  63   _num_committed(0),
  64   _allocated_heapregions_length(0),
  65   _regions(), _heap_mapper(NULL),
  66   _prev_bitmap_mapper(NULL),
  67   _next_bitmap_mapper(NULL),
  68   _free_list("Free list", new MasterFreeRegionListChecker())
  69 { }
  70 
  71 HeapRegionManager* HeapRegionManager::create_manager(G1CollectedHeap* heap, G1CollectorPolicy* policy) {
  72   if (policy->is_heap_heterogeneous()) {
  73     return new HeterogeneousHeapRegionManager((uint)(policy->max_heap_byte_size() / HeapRegion::GrainBytes) /*heap size as num of regions*/);
  74   }
  75   return new HeapRegionManager();
  76 }
  77 
  78 void HeapRegionManager::initialize(G1RegionToSpaceMapper* heap_storage,
  79                                G1RegionToSpaceMapper* prev_bitmap,
  80                                G1RegionToSpaceMapper* next_bitmap,
  81                                G1RegionToSpaceMapper* bot,
  82                                G1RegionToSpaceMapper* cardtable,
  83                                G1RegionToSpaceMapper* card_counts) {
  84   _allocated_heapregions_length = 0;
  85 
  86   _heap_mapper = heap_storage;
  87 
  88   _prev_bitmap_mapper = prev_bitmap;
  89   _next_bitmap_mapper = next_bitmap;
  90 
  91   _bot_mapper = bot;
  92   _cardtable_mapper = cardtable;


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