| /* |
| * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| * |
| */ |
| |
| #ifndef SHARE_VM_MEMORY_METADATAFACTORY_HPP |
| #define SHARE_VM_MEMORY_METADATAFACTORY_HPP |
| |
| #include "classfile/classLoaderData.hpp" |
| #include "utilities/array.hpp" |
| #include "utilities/exceptions.hpp" |
| #include "utilities/globalDefinitions.hpp" |
| |
| class MetadataFactory : AllStatic { |
| public: |
| template <typename T> |
| static Array<T>* new_array(ClassLoaderData* loader_data, int length, TRAPS) { |
| // The "true" argument is because all metadata arrays are read only when |
| // dumped to the shared archive |
| return new (loader_data, length, /*read_only*/true, THREAD) Array<T>(length); |
| } |
| |
| template <typename T> |
| static Array<T>* new_array(ClassLoaderData* loader_data, int length, T value, TRAPS) { |
| Array<T>* array = new_array<T>(loader_data, length, CHECK_NULL); |
| for (int i = 0; i < length; i++) { |
| array->at_put(i, value); |
| } |
| return array; |
| } |
| |
| template <typename T> |
| static Array<T>* new_writeable_array(ClassLoaderData* loader_data, int length, TRAPS) { |
| return new (loader_data, length, /*read_only*/false, THREAD) Array<T>(length); |
| } |
| |
| template <typename T> |
| static Array<T>* new_writeable_array(ClassLoaderData* loader_data, int length, T value, TRAPS) { |
| Array<T>* array = new_writeable_array<T>(loader_data, length, CHECK_NULL); |
| for (int i = 0; i < length; i++) { |
| array->at_put(i, value); |
| } |
| return array; |
| } |
| |
| template <typename T> |
| static void free_array(ClassLoaderData* loader_data, Array<T>* data) { |
| if (DumpSharedSpaces) { |
| // FIXME: the freeing code is buggy, especially when PrintSharedSpaces is enabled. |
| // Disable for now -- this means if you specify bad classes in your classlist you |
| // may have wasted space inside the archive. |
| return; |
| } |
| if (data != NULL) { |
| assert(loader_data != NULL, "shouldn't pass null"); |
| assert(!data->is_shared(), "cannot deallocate array in shared spaces"); |
| int size = data->size(); |
| if (DumpSharedSpaces) { |
| loader_data->ro_metaspace()->deallocate((MetaWord*)data, size, false); |
| } else { |
| loader_data->metaspace_non_null()->deallocate((MetaWord*)data, size, false); |
| } |
| } |
| } |
| |
| // Deallocation method for metadata |
| template <class T> |
| static void free_metadata(ClassLoaderData* loader_data, T md) { |
| if (DumpSharedSpaces) { |
| // FIXME: the freeing code is buggy, especially when PrintSharedSpaces is enabled. |
| // Disable for now -- this means if you specify bad classes in your classlist you |
| // may have wasted space inside the archive. |
| return; |
| } |
| if (md != NULL) { |
| assert(loader_data != NULL, "shouldn't pass null"); |
| int size = md->size(); |
| // Call metadata's deallocate function which will call deallocate fields |
| assert(!DumpSharedSpaces, "cannot deallocate metadata when dumping CDS archive"); |
| assert(!md->on_stack(), "can't deallocate things on stack"); |
| assert(!md->is_shared(), "cannot deallocate if in shared spaces"); |
| md->deallocate_contents(loader_data); |
| loader_data->metaspace_non_null()->deallocate((MetaWord*)md, size, md->is_klass()); |
| } |
| } |
| }; |
| |
| #endif // SHARE_VM_MEMORY_METADATAFACTORY_HPP |