1 /* 2 * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #include "dl/sp/src/test/aligned_ptr.h" 12 13 #include <stdlib.h> 14 15 /* |alignment| is the byte alignment and MUST be a power of two. */ 16 struct AlignedPtr* AllocAlignedPointer(int alignment, int bytes) { 17 struct AlignedPtr* aligned_ptr; 18 unsigned long raw_address; 19 20 aligned_ptr = (struct AlignedPtr*) malloc(sizeof(*aligned_ptr)); 21 aligned_ptr->raw_pointer_ = malloc(bytes + alignment); 22 raw_address = (unsigned long) aligned_ptr->raw_pointer_; 23 raw_address = (raw_address + alignment - 1) & ~(alignment - 1); 24 aligned_ptr->aligned_pointer_ = (void*) raw_address; 25 26 return aligned_ptr; 27 } 28 29 void FreeAlignedPointer(struct AlignedPtr* pointer) { 30 free(pointer->raw_pointer_); 31 free(pointer); 32 } 33
