1 | /* |
2 | * Copyright (C) 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. 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 | #include "MessagePortIdentifier.h" |
29 | #include "SerializedScriptValue.h" |
30 | #include <wtf/RefPtr.h> |
31 | |
32 | namespace WebCore { |
33 | |
34 | // When a message port is transferred, it is represented by a pair of identifiers. |
35 | // The first identifier is the port being transferred and the second is its remote port. |
36 | typedef Vector<std::pair<WebCore::MessagePortIdentifier, WebCore::MessagePortIdentifier>> TransferredMessagePortArray; |
37 | |
38 | struct MessageWithMessagePorts { |
39 | RefPtr<SerializedScriptValue> message; |
40 | TransferredMessagePortArray transferredPorts; |
41 | |
42 | template<class Encoder> void encode(Encoder&) const; |
43 | template<class Decoder> static Optional<MessageWithMessagePorts> decode(Decoder&); |
44 | }; |
45 | |
46 | |
47 | template<class Encoder> |
48 | void MessageWithMessagePorts::encode(Encoder& encoder) const |
49 | { |
50 | ASSERT(message); |
51 | encoder << *message << transferredPorts; |
52 | } |
53 | |
54 | template<class Decoder> |
55 | Optional<MessageWithMessagePorts> MessageWithMessagePorts::decode(Decoder& decoder) |
56 | { |
57 | MessageWithMessagePorts result; |
58 | |
59 | result.message = SerializedScriptValue::decode(decoder); |
60 | if (!result.message) |
61 | return WTF::nullopt; |
62 | |
63 | if (!decoder.decode(result.transferredPorts)) |
64 | return WTF::nullopt; |
65 | |
66 | return result; |
67 | } |
68 | |
69 | } // namespace WebCore |
70 | |