coleenp@4037: /*
coleenp@4037:  * Copyright (c) 2010, 2012, Oracle and/or its affiliates. All rights reserved.
coleenp@4037:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
coleenp@4037:  *
coleenp@4037:  * This code is free software; you can redistribute it and/or modify it
coleenp@4037:  * under the terms of the GNU General Public License version 2 only, as
coleenp@4037:  * published by the Free Software Foundation.
coleenp@4037:  *
coleenp@4037:  * This code is distributed in the hope that it will be useful, but WITHOUT
coleenp@4037:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
coleenp@4037:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
coleenp@4037:  * version 2 for more details (a copy is included in the LICENSE file that
coleenp@4037:  * accompanied this code).
coleenp@4037:  *
coleenp@4037:  * You should have received a copy of the GNU General Public License version
coleenp@4037:  * 2 along with this work; if not, write to the Free Software Foundation,
coleenp@4037:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
coleenp@4037:  *
coleenp@4037:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
coleenp@4037:  * or visit www.oracle.com if you need additional information or have any
coleenp@4037:  * questions.
coleenp@4037:  *
coleenp@4037:  */
coleenp@4037: 
coleenp@4037: #ifndef SHARE_VM_MEMORY_METADATAFACTORY_HPP
coleenp@4037: #define SHARE_VM_MEMORY_METADATAFACTORY_HPP
coleenp@4037: 
coleenp@4037: #include "utilities/array.hpp"
coleenp@4037: #include "utilities/exceptions.hpp"
coleenp@4037: #include "utilities/globalDefinitions.hpp"
coleenp@4037: 
coleenp@4037: class MetadataFactory : AllStatic {
coleenp@4037:  public:
coleenp@4037:   template <typename T>
coleenp@4037:   static Array<T>* new_array(ClassLoaderData* loader_data, int length, TRAPS) {
coleenp@4037:     // The "true" argument is because all metadata arrays are read only when
coleenp@4037:     // dumped to the shared archive
coleenp@4037:     return new (loader_data, length, /*read_only*/true, THREAD) Array<T>(length);
coleenp@4037:   }
coleenp@4037: 
coleenp@4037:   template <typename T>
coleenp@4037:   static Array<T>* new_array(ClassLoaderData* loader_data, int length, T value, TRAPS) {
coleenp@4037:     Array<T>* array = new_array<T>(loader_data, length, CHECK_NULL);
coleenp@4037:     for (int i = 0; i < length; i++) {
coleenp@4037:       array->at_put(i, value);
coleenp@4037:     }
coleenp@4037:     return array;
coleenp@4037:   }
coleenp@4037: 
coleenp@4037:   template <typename T>
coleenp@4037:   static Array<T>* new_writeable_array(ClassLoaderData* loader_data, int length, TRAPS) {
coleenp@4037:     return new (loader_data, length, /*read_only*/false, THREAD) Array<T>(length);
coleenp@4037:   }
coleenp@4037: 
coleenp@4037:   template <typename T>
coleenp@4037:   static Array<T>* new_writeable_array(ClassLoaderData* loader_data, int length, T value, TRAPS) {
coleenp@4037:     Array<T>* array = new_writeable_array<T>(loader_data, length, CHECK_NULL);
coleenp@4037:     for (int i = 0; i < length; i++) {
coleenp@4037:       array->at_put(i, value);
coleenp@4037:     }
coleenp@4037:     return array;
coleenp@4037:   }
coleenp@4037: 
coleenp@4037:   template <typename T>
coleenp@4037:   static void free_array(ClassLoaderData* loader_data, Array<T>* data) {
coleenp@4037:     if (data != NULL) {
coleenp@4037:       assert(loader_data != NULL, "shouldn't pass null");
coleenp@4037:       int size = data->size();
jmasa@4457:       if (DumpSharedSpaces) {
jmasa@4457:         loader_data->ro_metaspace()->deallocate((MetaWord*)data, size, false);
jmasa@4457:       } else {
jmasa@4457:         loader_data->metaspace_non_null()->deallocate((MetaWord*)data, size, false);
jmasa@4457:       }
coleenp@4037:     }
coleenp@4037:   }
coleenp@4037: 
coleenp@4037:   // Deallocation method for metadata
coleenp@4037:   template <class T>
coleenp@4037:   static void free_metadata(ClassLoaderData* loader_data, T md) {
coleenp@4037:     if (md != NULL) {
coleenp@4037:       assert(loader_data != NULL, "shouldn't pass null");
coleenp@4037:       int size = md->size();
coleenp@4037:       // Call metadata's deallocate function which will call deallocate fields
jmasa@4457:       assert(!DumpSharedSpaces, "cannot deallocate metadata when dumping CDS archive");
coleenp@4037:       assert(!md->on_stack(), "can't deallocate things on stack");
coleenp@4037:       md->deallocate_contents(loader_data);
coleenp@4037:       loader_data->metaspace_non_null()->deallocate((MetaWord*)md, size, md->is_klass());
coleenp@4037:     }
coleenp@4037:   }
coleenp@4037: };
coleenp@4037: 
coleenp@4037: #endif // SHARE_VM_MEMORY_METADATAFACTORY_HPP