Mercurial > hg > truffle
view src/share/vm/memory/metadataFactory.hpp @ 7252:73139223837c
Merge
author | Lukas Stadler <lukas.stadler@jku.at> |
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date | Mon, 17 Dec 2012 17:42:27 +0100 |
parents | da91efe96a93 |
children | 59a58e20dc60 |
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/* * Copyright (c) 2010, 2012, 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 "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 (data != NULL) { assert(loader_data != NULL, "shouldn't pass null"); int size = data->size(); 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 (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(!md->on_stack(), "can't deallocate things on stack"); md->deallocate_contents(loader_data); loader_data->metaspace_non_null()->deallocate((MetaWord*)md, size, md->is_klass()); } } }; #endif // SHARE_VM_MEMORY_METADATAFACTORY_HPP