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src/share/vm/memory/metadataFactory.hpp@710a3c8b516e (annotated)
src/share/vm/memory/metadataFactory.hpp
Tue, 08 Aug 2017 15:57:29 +0800
- author
- aoqi
- date
- Tue, 08 Aug 2017 15:57:29 +0800
- changeset 6876
- 710a3c8b516e
- parent 5896
- d37a0525c0fe
- parent 0
- f90c822e73f8
- child 7535
- 7ae4e26cb1e0
- permissions
- -rw-r--r--
merge
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. |
| aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| aoqi@0 | 4 | * |
| aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
| aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| aoqi@0 | 7 | * published by the Free Software Foundation. |
| aoqi@0 | 8 | * |
| aoqi@0 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| aoqi@0 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| aoqi@0 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| aoqi@0 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| aoqi@0 | 13 | * accompanied this code). |
| aoqi@0 | 14 | * |
| aoqi@0 | 15 | * You should have received a copy of the GNU General Public License version |
| aoqi@0 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| aoqi@0 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| aoqi@0 | 18 | * |
| aoqi@0 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| aoqi@0 | 20 | * or visit www.oracle.com if you need additional information or have any |
| aoqi@0 | 21 | * questions. |
| aoqi@0 | 22 | * |
| aoqi@0 | 23 | */ |
| aoqi@0 | 24 | |
| aoqi@0 | 25 | #ifndef SHARE_VM_MEMORY_METADATAFACTORY_HPP |
| aoqi@0 | 26 | #define SHARE_VM_MEMORY_METADATAFACTORY_HPP |
| aoqi@0 | 27 | |
| aoqi@0 | 28 | #include "utilities/array.hpp" |
| aoqi@0 | 29 | #include "utilities/exceptions.hpp" |
| aoqi@0 | 30 | #include "utilities/globalDefinitions.hpp" |
| aoqi@0 | 31 | |
| aoqi@0 | 32 | class MetadataFactory : AllStatic { |
| aoqi@0 | 33 | public: |
| aoqi@0 | 34 | template <typename T> |
| aoqi@0 | 35 | static Array<T>* new_array(ClassLoaderData* loader_data, int length, TRAPS) { |
| aoqi@0 | 36 | // The "true" argument is because all metadata arrays are read only when |
| aoqi@0 | 37 | // dumped to the shared archive |
| aoqi@0 | 38 | return new (loader_data, length, /*read_only*/true, THREAD) Array<T>(length); |
| aoqi@0 | 39 | } |
| aoqi@0 | 40 | |
| aoqi@0 | 41 | template <typename T> |
| aoqi@0 | 42 | static Array<T>* new_array(ClassLoaderData* loader_data, int length, T value, TRAPS) { |
| aoqi@0 | 43 | Array<T>* array = new_array<T>(loader_data, length, CHECK_NULL); |
| aoqi@0 | 44 | for (int i = 0; i < length; i++) { |
| aoqi@0 | 45 | array->at_put(i, value); |
| aoqi@0 | 46 | } |
| aoqi@0 | 47 | return array; |
| aoqi@0 | 48 | } |
| aoqi@0 | 49 | |
| aoqi@0 | 50 | template <typename T> |
| aoqi@0 | 51 | static Array<T>* new_writeable_array(ClassLoaderData* loader_data, int length, TRAPS) { |
| aoqi@0 | 52 | return new (loader_data, length, /*read_only*/false, THREAD) Array<T>(length); |
| aoqi@0 | 53 | } |
| aoqi@0 | 54 | |
| aoqi@0 | 55 | template <typename T> |
| aoqi@0 | 56 | static Array<T>* new_writeable_array(ClassLoaderData* loader_data, int length, T value, TRAPS) { |
| aoqi@0 | 57 | Array<T>* array = new_writeable_array<T>(loader_data, length, CHECK_NULL); |
| aoqi@0 | 58 | for (int i = 0; i < length; i++) { |
| aoqi@0 | 59 | array->at_put(i, value); |
| aoqi@0 | 60 | } |
| aoqi@0 | 61 | return array; |
| aoqi@0 | 62 | } |
| aoqi@0 | 63 | |
| aoqi@0 | 64 | template <typename T> |
| aoqi@0 | 65 | static void free_array(ClassLoaderData* loader_data, Array<T>* data) { |
| aoqi@0 | 66 | if (data != NULL) { |
| aoqi@0 | 67 | assert(loader_data != NULL, "shouldn't pass null"); |
| aoqi@0 | 68 | assert(!data->is_shared(), "cannot deallocate array in shared spaces"); |
| aoqi@0 | 69 | int size = data->size(); |
| aoqi@0 | 70 | if (DumpSharedSpaces) { |
| aoqi@0 | 71 | loader_data->ro_metaspace()->deallocate((MetaWord*)data, size, false); |
| aoqi@0 | 72 | } else { |
| aoqi@0 | 73 | loader_data->metaspace_non_null()->deallocate((MetaWord*)data, size, false); |
| aoqi@0 | 74 | } |
| aoqi@0 | 75 | } |
| aoqi@0 | 76 | } |
| aoqi@0 | 77 | |
| aoqi@0 | 78 | // Deallocation method for metadata |
| aoqi@0 | 79 | template <class T> |
| aoqi@0 | 80 | static void free_metadata(ClassLoaderData* loader_data, T md) { |
| aoqi@0 | 81 | if (md != NULL) { |
| aoqi@0 | 82 | assert(loader_data != NULL, "shouldn't pass null"); |
| aoqi@0 | 83 | int size = md->size(); |
| aoqi@0 | 84 | // Call metadata's deallocate function which will call deallocate fields |
| aoqi@0 | 85 | assert(!DumpSharedSpaces, "cannot deallocate metadata when dumping CDS archive"); |
| aoqi@0 | 86 | assert(!md->on_stack(), "can't deallocate things on stack"); |
| aoqi@0 | 87 | assert(!md->is_shared(), "cannot deallocate if in shared spaces"); |
| aoqi@0 | 88 | md->deallocate_contents(loader_data); |
| aoqi@0 | 89 | loader_data->metaspace_non_null()->deallocate((MetaWord*)md, size, md->is_klass()); |
| aoqi@0 | 90 | } |
| aoqi@0 | 91 | } |
| aoqi@0 | 92 | }; |
| aoqi@0 | 93 | |
| aoqi@0 | 94 | #endif // SHARE_VM_MEMORY_METADATAFACTORY_HPP |
