1 /* 2 * Copyright (c) 2001, 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/serial/defNewGeneration.hpp" 27 #include "gc/serial/tenuredGeneration.hpp" 28 #include "gc/shared/genRemSet.hpp" 29 #include "gc/shared/generationSpec.hpp" 30 #include "memory/binaryTreeDictionary.hpp" 31 #include "memory/filemap.hpp" 32 #include "runtime/java.hpp" 33 #include "utilities/macros.hpp" 34 #if INCLUDE_ALL_GCS 35 #include "gc/cms/concurrentMarkSweepGeneration.hpp" 36 #include "gc/cms/parNewGeneration.hpp" 37 #endif // INCLUDE_ALL_GCS 38 39 Generation* GenerationSpec::init(ReservedSpace rs, int level, 40 GenRemSet* remset) { 41 switch (name()) { 42 case Generation::DefNew: 43 return new DefNewGeneration(rs, init_size(), level); 44 45 case Generation::MarkSweepCompact: 46 return new TenuredGeneration(rs, init_size(), level, remset); 47 48 #if INCLUDE_ALL_GCS 49 case Generation::ParNew: 50 return new ParNewGeneration(rs, init_size(), level); 51 52 case Generation::ConcurrentMarkSweep: { 53 assert(UseConcMarkSweepGC, "UseConcMarkSweepGC should be set"); 54 CardTableRS* ctrs = remset->as_CardTableRS(); 55 if (ctrs == NULL) { 56 vm_exit_during_initialization("Rem set incompatibility."); 57 } 58 // Otherwise 59 // The constructor creates the CMSCollector if needed, 60 // else registers with an existing CMSCollector 61 62 ConcurrentMarkSweepGeneration* g = NULL; 63 g = new ConcurrentMarkSweepGeneration(rs, 64 init_size(), level, ctrs, UseCMSAdaptiveFreeLists, 65 (FreeBlockDictionary<FreeChunk>::DictionaryChoice)CMSDictionaryChoice); 66 67 g->initialize_performance_counters(); 68 69 return g; 70 } 71 #endif // INCLUDE_ALL_GCS 72 73 default: 74 guarantee(false, "unrecognized GenerationName"); 75 return NULL; 76 } 77 }