1/*
2 * Copyright (C) 2013 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. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#ifndef HandleBlockInlines_h
27#define HandleBlockInlines_h
28
29#include "BlockAllocator.h"
30#include "HandleBlock.h"
31
32namespace JSC {
33
34inline HandleBlock* HandleBlock::create(DeadBlock* block, HandleSet* handleSet)
35{
36    Region* region = block->region();
37    return new (NotNull, block) HandleBlock(region, handleSet);
38}
39
40inline HandleBlock::HandleBlock(Region* region, HandleSet* handleSet)
41    : HeapBlock<HandleBlock>(region)
42    , m_handleSet(handleSet)
43{
44}
45
46inline char* HandleBlock::payloadEnd()
47{
48    return reinterpret_cast<char*>(this) + region()->blockSize();
49}
50
51inline char* HandleBlock::payload()
52{
53    return reinterpret_cast<char*>(this) + WTF::roundUpToMultipleOf<sizeof(double)>(sizeof(HandleBlock));
54}
55
56inline HandleNode* HandleBlock::nodes()
57{
58    return reinterpret_cast<HandleNode*>(payload());
59}
60
61inline HandleNode* HandleBlock::nodeAtIndex(unsigned i)
62{
63    ASSERT(i < nodeCapacity());
64    return &nodes()[i];
65}
66
67inline unsigned HandleBlock::nodeCapacity()
68{
69    return (payloadEnd() - payload()) / sizeof(HandleNode);
70}
71
72} // namespace JSC
73
74#endif // HandleBlockInlines_h
75