Mercurial > hg > truffle
comparison src/share/vm/classfile/sharedClassUtil.hpp @ 20375:6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
Summary: Cleaned up CDS to be more configurable, maintainable and extensible
Reviewed-by: dholmes, coleenp, acorn, mchung
author | iklam |
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date | Thu, 21 Aug 2014 13:57:51 -0700 |
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20374:999824269b71 | 20375:6e0cb14ce59b |
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1 /* | |
2 * Copyright (c) 2014, 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 #ifndef SHARE_VM_CLASSFILE_SHAREDCLASSUTIL_HPP | |
26 #define SHARE_VM_CLASSFILE_SHAREDCLASSUTIL_HPP | |
27 | |
28 #include "classfile/sharedPathsMiscInfo.hpp" | |
29 #include "memory/filemap.hpp" | |
30 | |
31 class SharedClassUtil : AllStatic { | |
32 public: | |
33 | |
34 static SharedPathsMiscInfo* allocate_shared_paths_misc_info() { | |
35 return new SharedPathsMiscInfo(); | |
36 } | |
37 | |
38 static SharedPathsMiscInfo* allocate_shared_paths_misc_info(char* buf, int size) { | |
39 return new SharedPathsMiscInfo(buf, size); | |
40 } | |
41 | |
42 static FileMapInfo::FileMapHeader* allocate_file_map_header() { | |
43 return new FileMapInfo::FileMapHeader(); | |
44 } | |
45 | |
46 static size_t file_map_header_size() { | |
47 return sizeof(FileMapInfo::FileMapHeader); | |
48 } | |
49 | |
50 static size_t shared_class_path_entry_size() { | |
51 return sizeof(SharedClassPathEntry); | |
52 } | |
53 | |
54 static void update_shared_classpath(ClassPathEntry *cpe, | |
55 SharedClassPathEntry* ent, | |
56 time_t timestamp, | |
57 long filesize, TRAPS) { | |
58 ent->_timestamp = timestamp; | |
59 ent->_filesize = filesize; | |
60 } | |
61 | |
62 static void initialize(TRAPS) {} | |
63 | |
64 inline static bool is_shared_boot_class(Klass* klass) { | |
65 return (klass->_shared_class_path_index >= 0); | |
66 } | |
67 }; | |
68 | |
69 #endif // SHARE_VM_CLASSFILE_SHAREDCLASSUTIL_HPP |