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
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
|
{#-
# SPDX-License-Identifier: LGPL-2.1-or-later
# Copyright (C) 2020, Google Inc.
-#}
{#
# \brief Generate function prototype
#
# \param class Class name
# \param method mojom Method object
# \param suffix Suffix to append to \a method function name
# \param need_class_name If true, generate class name with function
# \param override If true, generate override tag after the function prototype
#}
{%- macro func_sig(class, method, suffix = "", need_class_name = true, override = false) -%}
{{method|method_return_value}} {{class + "::" if need_class_name}}{{method.mojom_name}}{{suffix}}(
{%- for param in method|method_parameters %}
{{param}}{{- "," if not loop.last}}
{%- endfor -%}
){{" override" if override}}
{%- endmacro -%}
{#
# \brief Generate function body for IPA stop() function for thread
#}
{%- macro stop_thread_body() -%}
ASSERT(state_ != ProxyStopping);
if (state_ != ProxyRunning)
return;
state_ = ProxyStopping;
proxy_.invokeMethod(&ThreadProxy::stop, ConnectionTypeBlocking);
thread_.exit();
thread_.wait();
Thread::current()->dispatchMessages(Message::Type::InvokeMessage);
state_ = ProxyStopped;
{%- endmacro -%}
{#
# \brief Serialize multiple objects into data buffer and fd vector
#
# Generate code to serialize multiple objects, as specified in \a params
# (which are the parameters to some function), into \a buf data buffer and
# \a fds fd vector.
# This code is meant to be used by the proxy, for serializing prior to IPC calls.
#
# \todo Avoid intermediate vectors
#}
{%- macro serialize_call(params, buf, fds) %}
{%- for param in params %}
{%- if param|is_enum %}
static_assert(sizeof({{param|name_full}}) <= 4);
{%- endif %}
std::vector<uint8_t> {{param.mojom_name}}Buf;
{%- if param|has_fd %}
std::vector<SharedFD> {{param.mojom_name}}Fds;
std::tie({{param.mojom_name}}Buf, {{param.mojom_name}}Fds) =
{%- else %}
std::tie({{param.mojom_name}}Buf, std::ignore) =
{%- endif %}
{%- if param|is_flags %}
IPADataSerializer<{{param|name_full}}>::serialize({{param.mojom_name}}
{%- elif param|is_enum %}
IPADataSerializer<uint32_t>::serialize(static_cast<uint32_t>({{param.mojom_name}})
{%- else %}
IPADataSerializer<{{param|name}}>::serialize({{param.mojom_name}}
{% endif -%}
{{- ", &controlSerializer_" if param|needs_control_serializer -}}
);
{%- endfor %}
{%- if params|length > 1 %}
{%- for param in params %}
appendPOD<uint32_t>({{buf}}, {{param.mojom_name}}Buf.size());
{%- if param|has_fd %}
appendPOD<uint32_t>({{buf}}, {{param.mojom_name}}Fds.size());
{%- endif %}
{%- endfor %}
{%- endif %}
{%- for param in params %}
{{buf}}.insert({{buf}}.end(), {{param.mojom_name}}Buf.begin(), {{param.mojom_name}}Buf.end());
{%- endfor %}
{%- for param in params %}
{%- if param|has_fd %}
{{fds}}.insert({{fds}}.end(), {{param.mojom_name}}Fds.begin(), {{param.mojom_name}}Fds.end());
{%- endif %}
{%- endfor %}
{%- endmacro -%}
{#
# \brief Deserialize a single object from data buffer and fd vector
#
# \param pointer If true, deserialize the object into a dereferenced pointer
# \param iter If true, treat \a buf as an iterator instead of a vector
# \param data_size Variable that holds the size of the vector referenced by \a buf
#
# Generate code to deserialize a single object, as specified in \a param,
# from \a buf data buffer and \a fds fd vector.
# This code is meant to be used by macro deserialize_call.
#}
{%- macro deserialize_param(param, pointer, loop, buf, fds, iter, data_size) -%}
{{"*" if pointer}}{{param.mojom_name}} =
{%- if param|is_flags %}
IPADataSerializer<{{param|name_full}}>::deserialize(
{%- elif param|is_enum %}
static_cast<{{param|name_full}}>(IPADataSerializer<uint32_t>::deserialize(
{%- else %}
IPADataSerializer<{{param|name}}>::deserialize(
{%- endif %}
{{buf}}{{- ".cbegin()" if not iter}} + {{param.mojom_name}}Start,
{%- if loop.last and not iter %}
{{buf}}.cend()
{%- elif not iter %}
{{buf}}.cbegin() + {{param.mojom_name}}Start + {{param.mojom_name}}BufSize
{%- elif iter and loop.length == 1 %}
{{buf}} + {{data_size}}
{%- else %}
{{buf}} + {{param.mojom_name}}Start + {{param.mojom_name}}BufSize
{%- endif -%}
{{- "," if param|has_fd}}
{%- if param|has_fd %}
{{fds}}.cbegin() + {{param.mojom_name}}FdStart,
{%- if loop.last %}
{{fds}}.cend()
{%- else %}
{{fds}}.cbegin() + {{param.mojom_name}}FdStart + {{param.mojom_name}}FdsSize
{%- endif -%}
{%- endif -%}
{{- "," if param|needs_control_serializer}}
{%- if param|needs_control_serializer %}
&controlSerializer_
{%- endif -%}
){{")" if param|is_enum and not param|is_flags}};
{%- endmacro -%}
{#
# \brief Deserialize multiple objects from data buffer and fd vector
#
# \param pointer If true, deserialize objects into pointers, and adds a null check.
# \param declare If true, declare the objects in addition to deserialization.
# \param iter if true, treat \a buf as an iterator instead of a vector
# \param data_size Variable that holds the size of the vector referenced by \a buf
#
# Generate code to deserialize multiple objects, as specified in \a params
# (which are the parameters to some function), from \a buf data buffer and
# \a fds fd vector.
# This code is meant to be used by the proxy, for deserializing after IPC calls.
#
# \todo Avoid intermediate vectors
#}
{%- macro deserialize_call(params, buf, fds, pointer = true, declare = false, iter = false, data_size = '', init_offset = 0) -%}
{% set ns = namespace(size_offset = init_offset) %}
{%- if params|length > 1 %}
{%- for param in params %}
[[maybe_unused]] const size_t {{param.mojom_name}}BufSize = readPOD<uint32_t>({{buf}}, {{ns.size_offset}}
{%- if iter -%}
, {{buf}} + {{data_size}}
{%- endif -%}
);
{%- set ns.size_offset = ns.size_offset + 4 %}
{%- if param|has_fd %}
[[maybe_unused]] const size_t {{param.mojom_name}}FdsSize = readPOD<uint32_t>({{buf}}, {{ns.size_offset}}
{%- if iter -%}
, {{buf}} + {{data_size}}
{%- endif -%}
);
{%- set ns.size_offset = ns.size_offset + 4 %}
{%- endif %}
{%- endfor %}
{%- endif %}
{% for param in params %}
{%- if loop.first %}
const size_t {{param.mojom_name}}Start = {{ns.size_offset}};
{%- else %}
const size_t {{param.mojom_name}}Start = {{loop.previtem.mojom_name}}Start + {{loop.previtem.mojom_name}}BufSize;
{%- endif %}
{%- endfor %}
{% for param in params|with_fds %}
{%- if loop.first %}
const size_t {{param.mojom_name}}FdStart = 0;
{%- else %}
const size_t {{param.mojom_name}}FdStart = {{loop.previtem.mojom_name}}FdStart + {{loop.previtem.mojom_name}}FdsSize;
{%- endif %}
{%- endfor %}
{% for param in params %}
{%- if pointer %}
if ({{param.mojom_name}}) {
{{deserialize_param(param, pointer, loop, buf, fds, iter, data_size)|indent(16, True)}}
}
{%- else %}
{{param|name + " " if declare}}{{deserialize_param(param, pointer, loop, buf, fds, iter, data_size)|indent(8)}}
{%- endif %}
{% endfor %}
{%- endmacro -%}
|
