1/*
2 * Copyright (C) 2015 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 "MemoryCursor.h"
28
29#if ENABLE(INDEXED_DATABASE)
30
31#include "IDBResourceIdentifier.h"
32#include "MemoryIDBBackingStore.h"
33#include <wtf/HashMap.h>
34#include <wtf/NeverDestroyed.h>
35
36namespace WebCore {
37namespace IDBServer {
38
39static HashMap<IDBResourceIdentifier, MemoryCursor*>& cursorMap()
40{
41 static NeverDestroyed<HashMap<IDBResourceIdentifier, MemoryCursor*>> map;
42 return map;
43}
44
45MemoryCursor::MemoryCursor(const IDBCursorInfo& info)
46 : m_info(info)
47{
48 ASSERT(!cursorMap().contains(m_info.identifier()));
49 cursorMap().set(m_info.identifier(), this);
50}
51
52MemoryCursor::~MemoryCursor()
53{
54 ASSERT(cursorMap().contains(m_info.identifier()));
55 cursorMap().remove(m_info.identifier());
56}
57
58MemoryCursor* MemoryCursor::cursorForIdentifier(const IDBResourceIdentifier& identifier)
59{
60 return cursorMap().get(identifier);
61}
62
63} // namespace IDBServer
64} // namespace WebCore
65
66#endif // ENABLE(INDEXED_DATABASE)
67