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0220be14 JG |
1 | /* |
2 | * Copyright (C) 2022 Jérémie Galarneau <jeremie.galarneau@efficios.com> | |
3 | * | |
4 | * SPDX-License-Identifier: GPL-2.0-only | |
5 | * | |
6 | */ | |
7 | ||
8 | #include "field.hpp" | |
9 | ||
10 | #include <common/exception.hpp> | |
11 | #include <common/format.hpp> | |
12 | ||
d7bfb9b0 JG |
13 | #include <set> |
14 | ||
0220be14 JG |
15 | namespace lst = lttng::sessiond::trace; |
16 | ||
17 | namespace { | |
18 | template <class FieldTypeSet> | |
19 | bool fields_are_equal(const FieldTypeSet& a, const FieldTypeSet& b) | |
20 | { | |
21 | if (a.size() != b.size()) { | |
22 | return false; | |
23 | } | |
24 | ||
25 | return std::equal(a.cbegin(), a.cend(), b.cbegin(), | |
26 | [](typename FieldTypeSet::const_reference field_a, | |
27 | typename FieldTypeSet::const_reference field_b) { | |
28 | return *field_a == *field_b; | |
29 | }); | |
30 | } | |
31 | } /* namespace */ | |
32 | ||
eda1aa02 JG |
33 | lst::field_location::field_location(lst::field_location::root in_lookup_root, |
34 | lst::field_location::elements in_elements) : | |
35 | root_{in_lookup_root}, elements_{std::move(in_elements)} | |
36 | { | |
37 | } | |
38 | ||
39 | bool lst::field_location::operator==(const lst::field_location& other) const noexcept | |
40 | { | |
41 | return root_ == other.root_ && | |
42 | elements_ == other.elements_; | |
43 | } | |
44 | ||
0220be14 JG |
45 | lst::type::type(unsigned int in_alignment) : alignment{in_alignment} |
46 | { | |
47 | } | |
48 | ||
49 | lst::type::~type() | |
50 | { | |
51 | } | |
52 | ||
53 | bool lst::type::operator==(const lst::type& other) const noexcept | |
54 | { | |
55 | return typeid(*this) == typeid(other) && | |
56 | alignment == other.alignment && | |
57 | /* defer to concrete type comparison */ | |
58 | this->_is_equal(other); | |
59 | } | |
60 | ||
61 | bool lst::type::operator!=(const lst::type& other) const noexcept | |
62 | { | |
63 | return !(*this == other); | |
64 | } | |
65 | ||
66 | lst::field::field(std::string in_name, lst::type::cuptr in_type) : | |
67 | name{std::move(in_name)}, _type{std::move(in_type)} | |
68 | { | |
69 | } | |
70 | ||
71 | void lst::field::accept(lst::field_visitor& visitor) const | |
72 | { | |
73 | visitor.visit(*this); | |
74 | } | |
75 | ||
76 | bool lst::field::operator==(const lst::field& other) const noexcept | |
77 | { | |
78 | return name == other.name && *_type == *other._type; | |
79 | } | |
80 | ||
81 | lst::integer_type::integer_type(unsigned int in_alignment, | |
82 | enum lst::byte_order in_byte_order, | |
83 | unsigned int in_size, | |
84 | enum lst::integer_type::signedness in_signedness, | |
e7360180 JG |
85 | enum lst::integer_type::base in_base, |
86 | roles in_roles) : | |
0220be14 JG |
87 | type(in_alignment), |
88 | byte_order{in_byte_order}, | |
89 | size{in_size}, | |
65cd3c0c | 90 | signedness_{in_signedness}, |
e7360180 JG |
91 | base_{in_base}, |
92 | roles_{std::move(in_roles)} | |
0220be14 JG |
93 | { |
94 | } | |
95 | ||
96 | bool lst::integer_type::_is_equal(const type &base_other) const noexcept | |
97 | { | |
98 | const auto& other = static_cast<decltype(*this)&>(base_other); | |
99 | ||
100 | return this->byte_order == other.byte_order && | |
101 | this->size == other.size && | |
65cd3c0c | 102 | this->signedness_ == other.signedness_ && |
e7360180 JG |
103 | this->base_ == other.base_ && |
104 | this->roles_ == other.roles_; | |
0220be14 JG |
105 | } |
106 | ||
107 | void lst::integer_type::accept(type_visitor& visitor) const | |
108 | { | |
109 | visitor.visit(*this); | |
110 | } | |
111 | ||
112 | lst::byte_order lst::type::reverse_byte_order(lst::byte_order byte_order) noexcept | |
113 | { | |
114 | if (byte_order == lst::byte_order::BIG_ENDIAN_) { | |
115 | return lst::byte_order::LITTLE_ENDIAN_; | |
116 | } else { | |
117 | return lst::byte_order::BIG_ENDIAN_; | |
118 | } | |
119 | } | |
120 | ||
121 | lst::floating_point_type::floating_point_type(unsigned int in_alignment, | |
122 | lst::byte_order in_byte_order, | |
123 | unsigned int in_exponent_digits, | |
124 | unsigned int in_mantissa_digits) : | |
125 | type(in_alignment), | |
126 | byte_order(in_byte_order), | |
127 | exponent_digits{in_exponent_digits}, | |
128 | mantissa_digits(in_mantissa_digits) | |
129 | { | |
130 | /* Allowed (exponent, mantissa) pairs. */ | |
d7bfb9b0 | 131 | static const std::set<std::pair<unsigned int, unsigned int>> allowed_pairs{ |
0220be14 JG |
132 | {5, 11}, /* binary16 */ |
133 | {8, 24}, /* binary32 */ | |
134 | {11, 53}, /* binary64 */ | |
135 | {15, 113}, /* binary128 */ | |
136 | }; | |
137 | ||
d7bfb9b0 JG |
138 | if (allowed_pairs.find({exponent_digits, mantissa_digits}) != allowed_pairs.end()) { |
139 | /* mantissa and exponent digits is a valid pair. */ | |
140 | return; | |
0220be14 JG |
141 | } |
142 | ||
143 | LTTNG_THROW_INVALID_ARGUMENT_ERROR( | |
144 | fmt::format("Invalid exponent/mantissa values provided while creating {}", | |
145 | typeid(*this))); | |
146 | } | |
147 | ||
148 | void lst::floating_point_type::accept(type_visitor& visitor) const | |
149 | { | |
150 | visitor.visit(*this); | |
151 | } | |
152 | ||
153 | bool lst::floating_point_type::_is_equal(const type& base_other) const noexcept | |
154 | { | |
155 | const auto& other = static_cast<decltype(*this)&>(base_other); | |
156 | ||
157 | return this->byte_order == other.byte_order && | |
158 | this->exponent_digits == other.exponent_digits && | |
159 | this->mantissa_digits == other.mantissa_digits; | |
160 | } | |
161 | ||
162 | lst::enumeration_type::enumeration_type(unsigned int in_alignment, | |
163 | enum lst::byte_order in_byte_order, | |
164 | unsigned int in_size, | |
165 | enum signedness in_signedness, | |
e7360180 JG |
166 | enum base in_base, |
167 | lst::integer_type::roles in_roles) : | |
168 | integer_type(in_alignment, | |
169 | in_byte_order, | |
170 | in_size, | |
171 | in_signedness, | |
172 | in_base, | |
173 | std::move(in_roles)) | |
0220be14 JG |
174 | { |
175 | } | |
176 | ||
e2c2bec2 JR |
177 | namespace lttng { |
178 | namespace sessiond { | |
179 | namespace trace { | |
0220be14 JG |
180 | template <> |
181 | void lst::signed_enumeration_type::accept(type_visitor& visitor) const | |
182 | { | |
183 | visitor.visit(*this); | |
184 | } | |
185 | ||
186 | template <> | |
187 | void lst::unsigned_enumeration_type::accept(type_visitor& visitor) const | |
188 | { | |
189 | visitor.visit(*this); | |
190 | } | |
e2c2bec2 JR |
191 | } /* namespace trace */ |
192 | } /* namespace sessiond */ | |
193 | } /* namespace lttng */ | |
0220be14 JG |
194 | |
195 | lst::array_type::array_type(unsigned int in_alignment, type::cuptr in_element_type) : | |
196 | type(in_alignment), element_type{std::move(in_element_type)} | |
197 | { | |
198 | } | |
199 | ||
200 | bool lst::array_type::_is_equal(const type& base_other) const noexcept | |
201 | { | |
202 | const auto& other = static_cast<decltype(*this)&>(base_other); | |
203 | ||
204 | return *this->element_type == *other.element_type; | |
205 | } | |
206 | ||
207 | lst::static_length_array_type::static_length_array_type(unsigned int in_alignment, | |
208 | type::cuptr in_element_type, | |
209 | uint64_t in_length) : | |
210 | array_type(in_alignment, std::move(in_element_type)), | |
211 | length{in_length} | |
212 | { | |
213 | } | |
214 | ||
215 | bool lst::static_length_array_type::_is_equal(const type& base_other) const noexcept | |
216 | { | |
217 | const auto& other = static_cast<decltype(*this)&>(base_other); | |
218 | ||
219 | return array_type::_is_equal(base_other) && this->length == other.length; | |
220 | } | |
221 | ||
222 | void lst::static_length_array_type::accept(type_visitor& visitor) const | |
223 | { | |
224 | visitor.visit(*this); | |
225 | } | |
226 | ||
227 | lst::dynamic_length_array_type::dynamic_length_array_type(unsigned int in_alignment, | |
228 | type::cuptr in_element_type, | |
eda1aa02 | 229 | lst::field_location in_length_field_location) : |
0220be14 | 230 | array_type(in_alignment, std::move(in_element_type)), |
eda1aa02 | 231 | length_field_location{std::move(in_length_field_location)} |
0220be14 JG |
232 | { |
233 | } | |
234 | ||
235 | bool lst::dynamic_length_array_type::_is_equal(const type& base_other) const noexcept | |
236 | { | |
237 | const auto& other = static_cast<decltype(*this)&>(base_other); | |
238 | ||
239 | return array_type::_is_equal(base_other) && | |
eda1aa02 | 240 | this->length_field_location == other.length_field_location; |
0220be14 JG |
241 | } |
242 | ||
243 | void lst::dynamic_length_array_type::accept(type_visitor& visitor) const | |
244 | { | |
245 | visitor.visit(*this); | |
246 | } | |
247 | ||
e7360180 JG |
248 | lst::static_length_blob_type::static_length_blob_type( |
249 | unsigned int in_alignment, uint64_t in_length_bytes, roles in_roles) : | |
250 | type(in_alignment), length_bytes{in_length_bytes}, roles_{std::move(in_roles)} | |
251 | { | |
252 | } | |
253 | ||
254 | bool lst::static_length_blob_type::_is_equal(const type& base_other) const noexcept | |
255 | { | |
256 | const auto& other = static_cast<decltype(*this)&>(base_other); | |
257 | ||
258 | return length_bytes == other.length_bytes && roles_ == other.roles_; | |
259 | } | |
260 | ||
261 | void lst::static_length_blob_type::accept(type_visitor& visitor) const | |
262 | { | |
263 | visitor.visit(*this); | |
264 | } | |
265 | ||
266 | lst::dynamic_length_blob_type::dynamic_length_blob_type( | |
eda1aa02 JG |
267 | unsigned int in_alignment, lst::field_location in_length_field_location) : |
268 | type(in_alignment), length_field_location{std::move(in_length_field_location)} | |
e7360180 JG |
269 | { |
270 | } | |
271 | ||
272 | bool lst::dynamic_length_blob_type::_is_equal(const type& base_other) const noexcept | |
273 | { | |
274 | const auto& other = dynamic_cast<decltype(*this)&>(base_other); | |
275 | ||
eda1aa02 | 276 | return length_field_location == other.length_field_location; |
e7360180 JG |
277 | } |
278 | ||
279 | void lst::dynamic_length_blob_type::accept(type_visitor& visitor) const | |
280 | { | |
281 | visitor.visit(*this); | |
282 | } | |
283 | ||
0220be14 | 284 | lst::string_type::string_type(unsigned int in_alignment, enum encoding in_encoding) : |
65cd3c0c | 285 | type(in_alignment), encoding_{in_encoding} |
0220be14 JG |
286 | { |
287 | } | |
288 | ||
289 | bool lst::string_type::_is_equal(const type& base_other) const noexcept | |
290 | { | |
291 | const auto& other = static_cast<decltype(*this)&>(base_other); | |
292 | ||
65cd3c0c | 293 | return this->encoding_ == other.encoding_; |
0220be14 JG |
294 | } |
295 | ||
296 | lst::static_length_string_type::static_length_string_type( | |
297 | unsigned int in_alignment, enum encoding in_encoding, uint64_t in_length) : | |
298 | string_type(in_alignment, in_encoding), length{in_length} | |
299 | { | |
300 | } | |
301 | ||
302 | bool lst::static_length_string_type::_is_equal(const type& base_other) const noexcept | |
303 | { | |
304 | const auto& other = static_cast<decltype(*this)&>(base_other); | |
305 | ||
306 | return string_type::_is_equal(base_other) && this->length == other.length; | |
307 | } | |
308 | ||
309 | void lst::static_length_string_type::accept(type_visitor& visitor) const | |
310 | { | |
311 | visitor.visit(*this); | |
312 | } | |
313 | ||
314 | lst::dynamic_length_string_type::dynamic_length_string_type(unsigned int in_alignment, | |
315 | enum encoding in_encoding, | |
eda1aa02 JG |
316 | field_location in_length_field_location) : |
317 | string_type(in_alignment, in_encoding), | |
318 | length_field_location{std::move(in_length_field_location)} | |
0220be14 JG |
319 | { |
320 | } | |
321 | ||
322 | bool lst::dynamic_length_string_type::_is_equal(const type& base_other) const noexcept | |
323 | { | |
324 | const auto& other = static_cast<decltype(*this)&>(base_other); | |
325 | ||
326 | return string_type::_is_equal(base_other) && | |
eda1aa02 | 327 | this->length_field_location == other.length_field_location; |
0220be14 JG |
328 | } |
329 | ||
330 | void lst::dynamic_length_string_type::accept(type_visitor& visitor) const | |
331 | { | |
332 | visitor.visit(*this); | |
333 | } | |
334 | ||
335 | lst::null_terminated_string_type::null_terminated_string_type(unsigned int in_alignment, | |
336 | enum encoding in_encoding) : | |
337 | string_type(in_alignment, in_encoding) | |
338 | { | |
339 | } | |
340 | ||
341 | void lst::null_terminated_string_type::accept(type_visitor& visitor) const | |
342 | { | |
343 | visitor.visit(*this); | |
344 | } | |
345 | ||
346 | lst::structure_type::structure_type(unsigned int in_alignment, fields in_fields) : | |
347 | type(in_alignment), _fields{std::move(in_fields)} | |
348 | { | |
349 | } | |
350 | ||
351 | bool lst::structure_type::_is_equal(const type& base_other) const noexcept | |
352 | { | |
353 | const auto &other = static_cast<decltype(*this)&>(base_other); | |
354 | ||
355 | return fields_are_equal(this->_fields, other._fields); | |
356 | } | |
357 | ||
358 | void lst::structure_type::accept(type_visitor& visitor) const | |
359 | { | |
360 | visitor.visit(*this); | |
361 | } | |
362 | ||
363 | lst::variant_type::variant_type(unsigned int in_alignment, | |
eda1aa02 | 364 | field_location in_selector_field_location, |
0220be14 JG |
365 | choices in_choices) : |
366 | type(in_alignment), | |
eda1aa02 JG |
367 | selector_field_location{std::move(in_selector_field_location)}, |
368 | _choices | |
369 | {std::move(in_choices)} | |
0220be14 JG |
370 | { |
371 | } | |
372 | ||
373 | bool lst::variant_type::_is_equal(const type& base_other) const noexcept | |
374 | { | |
375 | const auto &other = static_cast<decltype(*this)&>(base_other); | |
376 | ||
eda1aa02 JG |
377 | return this->selector_field_location == other.selector_field_location && |
378 | fields_are_equal(this->_choices | |
379 | , other._choices | |
380 | ); | |
0220be14 JG |
381 | } |
382 | ||
383 | void lst::variant_type::accept(type_visitor& visitor) const | |
384 | { | |
385 | visitor.visit(*this); | |
d7bfb9b0 | 386 | } |