1 /* 2 * Copyright (c) 2001, 2013, 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 "memory/binaryTreeDictionary.hpp" 27 #include "memory/defNewGeneration.hpp" 28 #include "memory/filemap.hpp" 29 #include "memory/genRemSet.hpp" 30 #include "memory/generationSpec.hpp" 31 #include "memory/tenuredGeneration.hpp" 32 #include "runtime/java.hpp" 33 #include "utilities/macros.hpp" 34 #if INCLUDE_ALL_GCS 35 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp" 36 #include "gc_implementation/parNew/parNewGeneration.hpp" 37 #endif // INCLUDE_ALL_GCS 38 39 Generation* GenerationSpec::init(ReservedSpace rs, GenRemSet* remset) { 40 switch (name()) { 41 case Generation::DefNew: 42 return new DefNewGeneration(rs, init_size()); 43 44 case Generation::MarkSweepCompact: 45 return new TenuredGeneration(rs, init_size(), remset); 46 47 #if INCLUDE_ALL_GCS 48 case Generation::ParNew: 49 return new ParNewGeneration(rs, init_size()); 50 51 case Generation::ConcurrentMarkSweep: { 52 assert(UseConcMarkSweepGC, "UseConcMarkSweepGC should be set"); 53 CardTableRS* ctrs = remset->as_CardTableRS(); 54 if (ctrs == NULL) { 55 vm_exit_during_initialization("Rem set incompatibility."); 56 } 57 // Otherwise 58 // The constructor creates the CMSCollector if needed, 59 // else registers with an existing CMSCollector 60 61 ConcurrentMarkSweepGeneration* g = NULL; 62 g = new ConcurrentMarkSweepGeneration(rs, 63 init_size(), ctrs, UseCMSAdaptiveFreeLists, 64 (FreeBlockDictionary<FreeChunk>::DictionaryChoice)CMSDictionaryChoice); 65 66 g->initialize_performance_counters(); 67 68 return g; 69 } 70 #endif // INCLUDE_ALL_GCS 71 72 default: 73 guarantee(false, "unrecognized GenerationName"); 74 return NULL; 75 } 76 }