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20375
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1 /*
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2 * Copyright (c) 2014, 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 #ifndef SHARE_VM_CLASSFILE_SHAREDCLASSUTIL_HPP
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26 #define SHARE_VM_CLASSFILE_SHAREDCLASSUTIL_HPP
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27
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28 #include "classfile/sharedPathsMiscInfo.hpp"
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29 #include "memory/filemap.hpp"
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30
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31 class SharedClassUtil : AllStatic {
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32 public:
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33
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34 static SharedPathsMiscInfo* allocate_shared_paths_misc_info() {
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35 return new SharedPathsMiscInfo();
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36 }
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37
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38 static SharedPathsMiscInfo* allocate_shared_paths_misc_info(char* buf, int size) {
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39 return new SharedPathsMiscInfo(buf, size);
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40 }
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41
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42 static FileMapInfo::FileMapHeader* allocate_file_map_header() {
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43 return new FileMapInfo::FileMapHeader();
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44 }
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45
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46 static size_t file_map_header_size() {
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47 return sizeof(FileMapInfo::FileMapHeader);
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48 }
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49
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50 static size_t shared_class_path_entry_size() {
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51 return sizeof(SharedClassPathEntry);
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52 }
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53
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54 static void update_shared_classpath(ClassPathEntry *cpe,
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55 SharedClassPathEntry* ent,
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56 time_t timestamp,
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57 long filesize, TRAPS) {
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58 ent->_timestamp = timestamp;
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59 ent->_filesize = filesize;
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60 }
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61
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62 static void initialize(TRAPS) {}
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63
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64 inline static bool is_shared_boot_class(Klass* klass) {
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65 return (klass->_shared_class_path_index >= 0);
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66 }
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67 };
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68
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69 #endif // SHARE_VM_CLASSFILE_SHAREDCLASSUTIL_HPP
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