system_wrappers: rename interface -> include

webrtc/system_wrappers/interface/aligned_malloc.h

-/*
- *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-#ifndef WEBRTC_SYSTEM_WRAPPERS_INTERFACE_ALIGNED_MALLOC_H_
-#define WEBRTC_SYSTEM_WRAPPERS_INTERFACE_ALIGNED_MALLOC_H_
-
-// The functions declared here
-// 1) Allocates block of aligned memory.
-// 2) Re-calculates a pointer such that it is aligned to a higher or equal
-//    address.
-// Note: alignment must be a power of two. The alignment is in bytes.
-
-#include <stddef.h>
-
-namespace webrtc {
-
-// Returns a pointer to the first boundry of |alignment| bytes following the
-// address of |ptr|.
-// Note that there is no guarantee that the memory in question is available.
-// |ptr| has no requirements other than it can't be NULL.
-void* GetRightAlign(const void* ptr, size_t alignment);
-
-// Allocates memory of |size| bytes aligned on an |alignment| boundry.
-// The return value is a pointer to the memory. Note that the memory must
-// be de-allocated using AlignedFree.
-void* AlignedMalloc(size_t size, size_t alignment);
-// De-allocates memory created using the AlignedMalloc() API.
-void AlignedFree(void* mem_block);
-
-// Templated versions to facilitate usage of aligned malloc without casting
-// to and from void*.
-template<typename T>
-T* GetRightAlign(const T* ptr, size_t alignment) {
-  return reinterpret_cast<T*>(GetRightAlign(reinterpret_cast<const void*>(ptr),
-                                            alignment));
-}
-template<typename T>
-T* AlignedMalloc(size_t size, size_t alignment) {
-  return reinterpret_cast<T*>(AlignedMalloc(size, alignment));
-}
-
-// Deleter for use with scoped_ptr. E.g., use as
-//   scoped_ptr<Foo, AlignedFreeDeleter> foo;
-struct AlignedFreeDeleter {
-  inline void operator()(void* ptr) const {
-    AlignedFree(ptr);
-  }
-};
-
-}  // namespace webrtc
-
-#endif // WEBRTC_SYSTEM_WRAPPERS_INTERFACE_ALIGNED_MALLOC_H_