1/*
2 * Copyright (C) 2014 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef MediumTraits_h
27#define MediumTraits_h
28
29#include "Sizes.h"
30#include "VMAllocate.h"
31
32namespace bmalloc {
33
34template<class Traits> class Chunk;
35template<class Traits> class Line;
36template<class Traits> class Page;
37
38struct MediumTraits {
39    typedef Chunk<MediumTraits> Chunk;
40    typedef Line<MediumTraits> Line;
41    typedef Page<MediumTraits> Page;
42
43    static const size_t lineSize = mediumLineSize;
44    static const size_t minimumObjectSize = smallMax + alignment;
45    static const size_t chunkSize = mediumChunkSize;
46    static const size_t chunkOffset = mediumChunkOffset;
47    static const uintptr_t chunkMask = mediumChunkMask;
48};
49
50} // namespace bmalloc
51
52#endif // MediumTraits_h
53