1/*
2 * Copyright (C) 2017-2018 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#include "config.h"
27#include "AlignedMemoryAllocator.h"
28
29#include "BlockDirectory.h"
30#include "Heap.h"
31#include "Subspace.h"
32
33namespace JSC {
34
35AlignedMemoryAllocator::AlignedMemoryAllocator()
36{
37}
38
39AlignedMemoryAllocator::~AlignedMemoryAllocator()
40{
41}
42
43void AlignedMemoryAllocator::registerDirectory(BlockDirectory* directory)
44{
45 RELEASE_ASSERT(!directory->nextDirectoryInAlignedMemoryAllocator());
46
47 if (m_directories.isEmpty()) {
48 ASSERT(!Thread::mayBeGCThread() || directory->heap()->worldIsStopped());
49 for (Subspace* subspace = m_subspaces.first(); subspace; subspace = subspace->nextSubspaceInAlignedMemoryAllocator())
50 subspace->didCreateFirstDirectory(directory);
51 }
52
53 m_directories.append(std::mem_fn(&BlockDirectory::setNextDirectoryInAlignedMemoryAllocator), directory);
54}
55
56void AlignedMemoryAllocator::registerSubspace(Subspace* subspace)
57{
58 RELEASE_ASSERT(!subspace->nextSubspaceInAlignedMemoryAllocator());
59 m_subspaces.append(std::mem_fn(&Subspace::setNextSubspaceInAlignedMemoryAllocator), subspace);
60}
61
62} // namespace JSC
63
64
65