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
32namespace 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.
36typedef Vector<std::pair<WebCore::MessagePortIdentifier, WebCore::MessagePortIdentifier>> TransferredMessagePortArray;
37
38struct 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
47template<class Encoder>
48void MessageWithMessagePorts::encode(Encoder& encoder) const
49{
50 ASSERT(message);
51 encoder << *message << transferredPorts;
52}
53
54template<class Decoder>
55Optional<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