jdk8-mips64-public/hotspot: src/share/vm/classfile/classLoaderData.inline.hpp@da91efe96a93

6964458: Reimplement class meta-data storage to use native memory
Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>

     1 /*

     2  * Copyright (c) 2011, 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 "classfile/classLoaderData.hpp"

    26 #include "classfile/javaClasses.hpp"

    28 inline ClassLoaderData* ClassLoaderData::class_loader_data(oop loader) {

    29   if (loader == NULL) return ClassLoaderData::the_null_class_loader_data();

    30   ClassLoaderData* loader_data = java_lang_ClassLoader::loader_data(loader);

    31   assert(loader_data != NULL, "Must be");

    32   return loader_data;

    33 }

    36 inline ClassLoaderData *ClassLoaderDataGraph::find_or_create(Handle loader) {

    37   assert(loader() != NULL,"Must be a class loader");

    38   // Gets the class loader data out of the java/lang/ClassLoader object, if non-null

    39   // it's already in the loader_data, so no need to add

    40   ClassLoaderData** loader_data_addr = java_lang_ClassLoader::loader_data_addr(loader());

    41   ClassLoaderData* loader_data_id = *loader_data_addr;

    42   if (loader_data_id) {

    43      return loader_data_id;

    44   }

    45   return ClassLoaderDataGraph::add(loader_data_addr, loader);

    46 }

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/classfile/classLoaderData.inline.hpp@da91efe96a93

src/share/vm/classfile/classLoaderData.inline.hpp