1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
/*
* Copyright (C) 2019 Igalia S.L.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "UserMessage.h"
#include "ArgumentCodersGLib.h"
#include "Attachment.h"
#include "DataReference.h"
#include <gio/gunixfdlist.h>
namespace WebKit {
void UserMessage::encode(IPC::Encoder& encoder) const
{
encoder << type;
if (type == Type::Null)
return;
encoder << name;
if (type == Type::Error) {
encoder << errorCode;
return;
}
encoder << parameters;
Vector<IPC::Attachment> attachments;
if (fileDescriptors) {
int length = g_unix_fd_list_get_length(fileDescriptors.get());
for (int i = 0; i < length; ++i)
attachments.append(IPC::Attachment(UnixFileDescriptor(g_unix_fd_list_get(fileDescriptors.get(), i, nullptr), UnixFileDescriptor::Adopt)));
}
encoder << attachments;
}
std::optional<UserMessage> UserMessage::decode(IPC::Decoder& decoder)
{
UserMessage result;
if (!decoder.decode(result.type))
return std::nullopt;
if (result.type == Type::Null)
return result;
if (!decoder.decode(result.name))
return std::nullopt;
if (result.type == Type::Error) {
std::optional<uint32_t> errorCode;
decoder >> errorCode;
if (!errorCode)
return std::nullopt;
result.errorCode = errorCode.value();
return result;
}
std::optional<GRefPtr<GVariant>> parameters;
decoder >> parameters;
if (!parameters)
return std::nullopt;
result.parameters = WTFMove(*parameters);
std::optional<Vector<IPC::Attachment>> attachments;
decoder >> attachments;
if (!attachments)
return std::nullopt;
if (!attachments->isEmpty()) {
result.fileDescriptors = adoptGRef(g_unix_fd_list_new());
for (auto& attachment : *attachments) {
if (g_unix_fd_list_append(result.fileDescriptors.get(), attachment.release().release(), nullptr) == -1)
return std::nullopt;
}
}
return result;
}
}
|
