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. 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 | #pragma once |
27 | |
28 | #if ENABLE(INDEXED_DATABASE) |
29 | |
30 | #include "IDBKey.h" |
31 | #include "IDBKeyData.h" |
32 | #include "IDBKeyPath.h" |
33 | #include "IDBValue.h" |
34 | #include "SharedBuffer.h" |
35 | |
36 | namespace WebCore { |
37 | |
38 | class IDBGetResult { |
39 | WTF_MAKE_FAST_ALLOCATED; |
40 | public: |
41 | IDBGetResult() |
42 | : m_isDefined(false) |
43 | { |
44 | } |
45 | |
46 | IDBGetResult(const IDBKeyData& keyData) |
47 | : m_keyData(keyData) |
48 | { |
49 | } |
50 | |
51 | IDBGetResult(const IDBKeyData& keyData, const IDBKeyData& primaryKeyData) |
52 | : m_keyData(keyData) |
53 | , m_primaryKeyData(primaryKeyData) |
54 | { |
55 | } |
56 | |
57 | IDBGetResult(const IDBKeyData& keyData, const ThreadSafeDataBuffer& buffer, const Optional<IDBKeyPath>& keyPath) |
58 | : m_value(buffer) |
59 | , m_keyData(keyData) |
60 | , m_keyPath(keyPath) |
61 | { |
62 | } |
63 | |
64 | IDBGetResult(const IDBKeyData& keyData, IDBValue&& value, const Optional<IDBKeyPath>& keyPath) |
65 | : m_value(WTFMove(value)) |
66 | , m_keyData(keyData) |
67 | , m_keyPath(keyPath) |
68 | { |
69 | } |
70 | |
71 | IDBGetResult(const IDBKeyData& keyData, const IDBKeyData& primaryKeyData, IDBValue&& value, const Optional<IDBKeyPath>& keyPath) |
72 | : m_value(WTFMove(value)) |
73 | , m_keyData(keyData) |
74 | , m_primaryKeyData(primaryKeyData) |
75 | , m_keyPath(keyPath) |
76 | { |
77 | } |
78 | |
79 | enum IsolatedCopyTag { IsolatedCopy }; |
80 | IDBGetResult(const IDBGetResult&, IsolatedCopyTag); |
81 | |
82 | IDBGetResult isolatedCopy() const; |
83 | |
84 | void setValue(IDBValue&&); |
85 | |
86 | const IDBValue& value() const { return m_value; } |
87 | const IDBKeyData& keyData() const { return m_keyData; } |
88 | const IDBKeyData& primaryKeyData() const { return m_primaryKeyData; } |
89 | const Optional<IDBKeyPath>& keyPath() const { return m_keyPath; } |
90 | bool isDefined() const { return m_isDefined; } |
91 | |
92 | template<class Encoder> void encode(Encoder&) const; |
93 | template<class Decoder> static bool decode(Decoder&, IDBGetResult&); |
94 | |
95 | private: |
96 | void dataFromBuffer(SharedBuffer&); |
97 | |
98 | static void isolatedCopy(const IDBGetResult& source, IDBGetResult& destination); |
99 | |
100 | IDBValue m_value; |
101 | IDBKeyData m_keyData; |
102 | IDBKeyData m_primaryKeyData; |
103 | Optional<IDBKeyPath> m_keyPath; |
104 | bool m_isDefined { true }; |
105 | }; |
106 | |
107 | template<class Encoder> |
108 | void IDBGetResult::encode(Encoder& encoder) const |
109 | { |
110 | encoder << m_keyData << m_primaryKeyData << m_keyPath << m_isDefined << m_value; |
111 | } |
112 | |
113 | template<class Decoder> |
114 | bool IDBGetResult::decode(Decoder& decoder, IDBGetResult& result) |
115 | { |
116 | Optional<IDBKeyData> keyData; |
117 | decoder >> keyData; |
118 | if (!keyData) |
119 | return false; |
120 | result.m_keyData = WTFMove(*keyData); |
121 | |
122 | Optional<IDBKeyData> primaryKeyData; |
123 | decoder >> primaryKeyData; |
124 | if (!primaryKeyData) |
125 | return false; |
126 | result.m_primaryKeyData = WTFMove(*primaryKeyData); |
127 | |
128 | if (!decoder.decode(result.m_keyPath)) |
129 | return false; |
130 | |
131 | if (!decoder.decode(result.m_isDefined)) |
132 | return false; |
133 | |
134 | Optional<IDBValue> value; |
135 | decoder >> value; |
136 | if (!value) |
137 | return false; |
138 | result.m_value = WTFMove(*value); |
139 | |
140 | return true; |
141 | } |
142 | |
143 | } // namespace WebCore |
144 | |
145 | #endif // ENABLE(INDEXED_DATABASE) |
146 | |