chromium/third_party/webrtc/rtc_base/memory/aligned_malloc.cc

/*
 *  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.
 */

#include "rtc_base/memory/aligned_malloc.h"

#include <stdlib.h>  // for free, malloc
#include <string.h>  // for memcpy

#include "rtc_base/checks.h"

#ifdef _WIN32
#include <windows.h>
#else
#include <stdint.h>
#endif

// Reference on memory alignment:
// http://stackoverflow.com/questions/227897/solve-the-memory-alignment-in-c-interview-question-that-stumped-me
namespace webrtc {

uintptr_t GetRightAlign(uintptr_t start_pos, size_t alignment) { … }

// Alignment must be an integer power of two.
bool ValidAlignment(size_t alignment) { … }

void* GetRightAlign(const void* pointer, size_t alignment) { … }

void* AlignedMalloc(size_t size, size_t alignment) { … }

void AlignedFree(void* mem_block) { … }

}  // namespace webrtc