stefank@5515: /*
stefank@5515:  * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
stefank@5515:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
stefank@5515:  *
stefank@5515:  * This code is free software; you can redistribute it and/or modify it
stefank@5515:  * under the terms of the GNU General Public License version 2 only, as
stefank@5515:  * published by the Free Software Foundation.
stefank@5515:  *
stefank@5515:  * This code is distributed in the hope that it will be useful, but WITHOUT
stefank@5515:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
stefank@5515:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
stefank@5515:  * version 2 for more details (a copy is included in the LICENSE file that
stefank@5515:  * accompanied this code).
stefank@5515:  *
stefank@5515:  * You should have received a copy of the GNU General Public License version
stefank@5515:  * 2 along with this work; if not, write to the Free Software Foundation,
stefank@5515:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
stefank@5515:  *
stefank@5515:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
stefank@5515:  * or visit www.oracle.com if you need additional information or have any
stefank@5515:  * questions.
stefank@5515:  *
stefank@5515:  */
stefank@5515: 
stefank@5515: #include "memory/allocation.inline.hpp"
stefank@5515: #include "memory/padded.hpp"
stefank@5515: #include "utilities/debug.hpp"
stefank@5515: #include "utilities/globalDefinitions.hpp"
stefank@5515: 
stefank@5515: // Creates an aligned padded array.
stefank@5515: // The memory can't be deleted since the raw memory chunk is not returned.
stefank@5515: template <class T, MEMFLAGS flags, size_t alignment>
stefank@5515: PaddedEnd<T>* PaddedArray<T, flags, alignment>::create_unfreeable(uint length) {
stefank@5515:   // Check that the PaddedEnd class works as intended.
stefank@5515:   STATIC_ASSERT(is_size_aligned_(sizeof(PaddedEnd<T>), alignment));
stefank@5515: 
stefank@5515:   // Allocate a chunk of memory large enough to allow for some alignment.
stefank@5515:   void* chunk = AllocateHeap(length * sizeof(PaddedEnd<T, alignment>) + alignment, flags);
stefank@5515: 
stefank@5515:   // Make the initial alignment.
stefank@5515:   PaddedEnd<T>* aligned_padded_array = (PaddedEnd<T>*)align_pointer_up(chunk, alignment);
stefank@5515: 
stefank@5515:   // Call the default constructor for each element.
stefank@5515:   for (uint i = 0; i < length; i++) {
stefank@5515:     ::new (&aligned_padded_array[i]) T();
stefank@5515:   }
stefank@5515: 
stefank@5515:   return aligned_padded_array;
stefank@5515: }