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
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
|
/*
* Copyright (C) 2010 Apple Inc. All rights reserved.
*
* 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.
*/
#pragma once
#include "ArgumentCoder.h"
#include "Attachment.h"
#include "StringReference.h"
#include <wtf/EnumTraits.h>
#include <wtf/Vector.h>
namespace IPC {
class DataReference;
class Encoder final {
WTF_MAKE_FAST_ALLOCATED;
public:
Encoder(StringReference messageReceiverName, StringReference messageName, uint64_t destinationID);
~Encoder();
StringReference messageReceiverName() const { return m_messageReceiverName; }
StringReference messageName() const { return m_messageName; }
uint64_t destinationID() const { return m_destinationID; }
void setIsSyncMessage(bool);
bool isSyncMessage() const;
void setShouldDispatchMessageWhenWaitingForSyncReply(bool);
bool shouldDispatchMessageWhenWaitingForSyncReply() const;
void setFullySynchronousModeForTesting();
void wrapForTesting(std::unique_ptr<Encoder>);
void encodeFixedLengthData(const uint8_t*, size_t, unsigned alignment);
void encodeVariableLengthByteArray(const DataReference&);
template<typename T> void encodeEnum(T t)
{
COMPILE_ASSERT(sizeof(T) <= sizeof(uint64_t), enum_type_must_not_be_larger_than_64_bits);
encode(static_cast<uint64_t>(t));
}
template<typename T>
auto encode(T&& t) -> std::enable_if_t<!std::is_enum<typename std::remove_const_t<std::remove_reference_t<T>>>::value>
{
ArgumentCoder<typename std::remove_const<typename std::remove_reference<T>::type>::type>::encode(*this, std::forward<T>(t));
}
template<typename T> Encoder& operator<<(T&& t)
{
encode(std::forward<T>(t));
return *this;
}
uint8_t* buffer() const { return m_buffer; }
size_t bufferSize() const { return m_bufferSize; }
void addAttachment(Attachment&&);
Vector<Attachment> releaseAttachments();
void reserve(size_t);
static const bool isIPCEncoder = true;
private:
uint8_t* grow(unsigned alignment, size_t);
void encode(bool);
void encode(uint8_t);
void encode(uint16_t);
void encode(uint32_t);
void encode(uint64_t);
void encode(int32_t);
void encode(int64_t);
void encode(float);
void encode(double);
template<typename E>
auto encode(E value) -> std::enable_if_t<std::is_enum<E>::value>
{
static_assert(sizeof(E) <= sizeof(uint64_t), "Enum type must not be larger than 64 bits.");
ASSERT(isValidEnum<E>(static_cast<uint64_t>(value)));
encode(static_cast<uint64_t>(value));
}
void encodeHeader();
StringReference m_messageReceiverName;
StringReference m_messageName;
uint64_t m_destinationID;
uint8_t m_inlineBuffer[512];
uint8_t* m_buffer;
uint8_t* m_bufferPointer;
size_t m_bufferSize;
size_t m_bufferCapacity;
Vector<Attachment> m_attachments;
};
} // namespace IPC
|
