Mercurial > hg > truffle
annotate src/share/vm/classfile/classLoaderData.inline.hpp @ 12837:82af7d7a0128
8003420: NPG: make new GC root for pd_set
Summary: Move protection domain oops from system dictionary entries into a seperate set; the system dictionary references entries in that set now. This allows fast iteration during non-classunloading garbage collection. Implementation based on initial prototype from Ioi Lam (iklam).
Reviewed-by: coleenp, iklam
author | tschatzl |
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date | Wed, 09 Oct 2013 10:57:01 +0200 |
parents | 1cb4795305b9 |
children | de6a9e811145 |
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1 /* |
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2 * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 * |
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23 */ |
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24 |
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25 #include "classfile/classLoaderData.hpp" |
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26 #include "classfile/javaClasses.hpp" |
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27 |
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28 inline ClassLoaderData* ClassLoaderData::class_loader_data_or_null(oop loader) { |
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29 if (loader == NULL) { |
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30 return ClassLoaderData::the_null_class_loader_data(); |
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31 } |
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32 return java_lang_ClassLoader::loader_data(loader); |
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33 } |
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34 |
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35 inline ClassLoaderData* ClassLoaderData::class_loader_data(oop loader) { |
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36 ClassLoaderData* loader_data = class_loader_data_or_null(loader); |
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37 assert(loader_data != NULL, "Must be"); |
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38 return loader_data; |
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39 } |
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40 |
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41 |
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42 inline ClassLoaderData *ClassLoaderDataGraph::find_or_create(Handle loader, TRAPS) { |
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43 assert(loader() != NULL,"Must be a class loader"); |
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44 // Gets the class loader data out of the java/lang/ClassLoader object, if non-null |
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45 // it's already in the loader_data, so no need to add |
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46 ClassLoaderData* loader_data= java_lang_ClassLoader::loader_data(loader()); |
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47 if (loader_data) { |
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48 return loader_data; |
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49 } |
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50 return ClassLoaderDataGraph::add(loader, false, THREAD); |
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51 } |