jdk8-mips64-public/hotspot: src/share/vm/memory/generationSpec.cpp@59a58e20dc60

     1 /*

     2  * Copyright (c) 2001, 2012, 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  */

    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 #ifndef SERIALGC

    34 #include "gc_implementation/parNew/asParNewGeneration.hpp"

    35 #include "gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp"

    36 #include "gc_implementation/parNew/parNewGeneration.hpp"

    37 #endif

    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);

    45     case Generation::MarkSweepCompact:

    46       return new TenuredGeneration(rs, init_size(), level, remset);

    48 #ifndef SERIALGC

    49     case Generation::ParNew:

    50       return new ParNewGeneration(rs, init_size(), level);

    52     case Generation::ASParNew:

    53       return new ASParNewGeneration(rs,

    54                                     init_size(),

    55                                     init_size() /* min size */,

    56                                     level);

    58     case Generation::ConcurrentMarkSweep: {

    59       assert(UseConcMarkSweepGC, "UseConcMarkSweepGC should be set");

    60       CardTableRS* ctrs = remset->as_CardTableRS();

    61       if (ctrs == NULL) {

    62         vm_exit_during_initialization("Rem set incompatibility.");

    63       }

    64       // Otherwise

    65       // The constructor creates the CMSCollector if needed,

    66       // else registers with an existing CMSCollector

    68       ConcurrentMarkSweepGeneration* g = NULL;

    69       g = new ConcurrentMarkSweepGeneration(rs,

    70                  init_size(), level, ctrs, UseCMSAdaptiveFreeLists,

    71                  (FreeBlockDictionary<FreeChunk>::DictionaryChoice)CMSDictionaryChoice);

    73       g->initialize_performance_counters();

    75       return g;

    76     }

    78     case Generation::ASConcurrentMarkSweep: {

    79       assert(UseConcMarkSweepGC, "UseConcMarkSweepGC should be set");

    80       CardTableRS* ctrs = remset->as_CardTableRS();

    81       if (ctrs == NULL) {

    82         vm_exit_during_initialization("Rem set incompatibility.");

    83       }

    84       // Otherwise

    85       // The constructor creates the CMSCollector if needed,

    86       // else registers with an existing CMSCollector

    88       ASConcurrentMarkSweepGeneration* g = NULL;

    89       g = new ASConcurrentMarkSweepGeneration(rs,

    90                  init_size(), level, ctrs, UseCMSAdaptiveFreeLists,

    91                  (FreeBlockDictionary<FreeChunk>::DictionaryChoice)CMSDictionaryChoice);

    93       g->initialize_performance_counters();

    95       return g;

    96     }

    97 #endif // SERIALGC

    99     default:

   100       guarantee(false, "unrecognized GenerationName");

   101       return NULL;

   102   }

   103 }

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