clang-tidy: add a subset of cppcoreguidelines and other style checks
[lttng-tools.git] / src / bin / lttng-sessiond / field.cpp
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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
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13#include <set>
14
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15namespace lst = lttng::sessiond::trace;
16
17namespace {
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18template <class FieldTypeContainerType>
19bool fields_are_equal(const FieldTypeContainerType& a, const FieldTypeContainerType& b)
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20{
21 if (a.size() != b.size()) {
22 return false;
23 }
24
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25 return std::equal(a.cbegin(),
26 a.cend(),
27 b.cbegin(),
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28 [](typename FieldTypeContainerType::const_reference field_a,
29 typename FieldTypeContainerType::const_reference field_b) {
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30 return *field_a == *field_b;
31 });
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32}
33} /* namespace */
34
eda1aa02 35lst::field_location::field_location(lst::field_location::root in_lookup_root,
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36 lst::field_location::elements in_elements) :
37 root_{ in_lookup_root }, elements_{ std::move(in_elements) }
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38{
39}
40
41bool lst::field_location::operator==(const lst::field_location& other) const noexcept
42{
28ab034a 43 return root_ == other.root_ && elements_ == other.elements_;
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44}
45
28ab034a 46lst::type::type(unsigned int in_alignment) : alignment{ in_alignment }
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47{
48}
49
cd9adb8b 50lst::type::~type() = default;
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51
52bool lst::type::operator==(const lst::type& other) const noexcept
53{
28ab034a 54 return typeid(*this) == typeid(other) && alignment == other.alignment &&
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55 /* defer to concrete type comparison */
56 this->_is_equal(other);
57}
58
59bool lst::type::operator!=(const lst::type& other) const noexcept
60{
61 return !(*this == other);
62}
63
64lst::field::field(std::string in_name, lst::type::cuptr in_type) :
28ab034a 65 name{ std::move(in_name) }, _type{ std::move(in_type) }
0220be14 66{
45110cdd 67 if (!_type) {
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68 LTTNG_THROW_ERROR(
69 fmt::format("Invalid type used to create field: field name = `{}`", name));
45110cdd 70 }
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71}
72
73void lst::field::accept(lst::field_visitor& visitor) const
74{
75 visitor.visit(*this);
76}
77
78bool lst::field::operator==(const lst::field& other) const noexcept
79{
80 return name == other.name && *_type == *other._type;
81}
82
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83lst::type::cuptr lst::field::move_type() noexcept
84{
85 return std::move(_type);
86}
87
28ab034a 88const lst::type& lst::field::get_type() const
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89{
90 if (_type) {
91 return *_type;
92 } else {
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93 LTTNG_THROW_ERROR(fmt::format(
94 "Invalid attempt to access field type after transfer: field name = `{}`",
95 name));
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96 }
97}
98
0220be14 99lst::integer_type::integer_type(unsigned int in_alignment,
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100 enum lst::byte_order in_byte_order,
101 unsigned int in_size,
102 enum lst::integer_type::signedness in_signedness,
103 enum lst::integer_type::base in_base,
104 roles in_roles) :
0220be14 105 type(in_alignment),
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106 byte_order{ in_byte_order },
107 size{ in_size },
108 signedness_{ in_signedness },
109 base_{ in_base },
110 roles_{ std::move(in_roles) }
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111{
112}
113
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114lst::type::cuptr lst::integer_type::copy() const
115{
116 return lttng::make_unique<integer_type>(
28ab034a 117 alignment, byte_order, size, signedness_, base_, roles_);
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118}
119
28ab034a 120bool lst::integer_type::_is_equal(const type& base_other) const noexcept
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121{
122 const auto& other = static_cast<decltype(*this)&>(base_other);
123
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124 return this->byte_order == other.byte_order && this->size == other.size &&
125 this->signedness_ == other.signedness_ && this->base_ == other.base_ &&
e7360180 126 this->roles_ == other.roles_;
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127}
128
129void lst::integer_type::accept(type_visitor& visitor) const
130{
131 visitor.visit(*this);
132}
133
134lst::byte_order lst::type::reverse_byte_order(lst::byte_order byte_order) noexcept
135{
136 if (byte_order == lst::byte_order::BIG_ENDIAN_) {
137 return lst::byte_order::LITTLE_ENDIAN_;
138 } else {
139 return lst::byte_order::BIG_ENDIAN_;
140 }
141}
142
143lst::floating_point_type::floating_point_type(unsigned int in_alignment,
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144 lst::byte_order in_byte_order,
145 unsigned int in_exponent_digits,
146 unsigned int in_mantissa_digits) :
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147 type(in_alignment),
148 byte_order(in_byte_order),
28ab034a 149 exponent_digits{ in_exponent_digits },
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150 mantissa_digits(in_mantissa_digits)
151{
152 /* Allowed (exponent, mantissa) pairs. */
d7bfb9b0 153 static const std::set<std::pair<unsigned int, unsigned int>> allowed_pairs{
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154 { 5, 11 }, /* binary16 */
155 { 8, 24 }, /* binary32 */
156 { 11, 53 }, /* binary64 */
157 { 15, 113 }, /* binary128 */
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158 };
159
28ab034a 160 if (allowed_pairs.find({ exponent_digits, mantissa_digits }) != allowed_pairs.end()) {
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161 /* mantissa and exponent digits is a valid pair. */
162 return;
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163 }
164
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165 LTTNG_THROW_INVALID_ARGUMENT_ERROR(fmt::format(
166 "Invalid exponent/mantissa values provided while creating {}", typeid(*this)));
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167}
168
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169lst::type::cuptr lst::floating_point_type::copy() const
170{
171 return lttng::make_unique<floating_point_type>(
28ab034a 172 alignment, byte_order, exponent_digits, mantissa_digits);
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173}
174
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175void lst::floating_point_type::accept(type_visitor& visitor) const
176{
177 visitor.visit(*this);
178}
179
180bool lst::floating_point_type::_is_equal(const type& base_other) const noexcept
181{
182 const auto& other = static_cast<decltype(*this)&>(base_other);
183
184 return this->byte_order == other.byte_order &&
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185 this->exponent_digits == other.exponent_digits &&
186 this->mantissa_digits == other.mantissa_digits;
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187}
188
189lst::enumeration_type::enumeration_type(unsigned int in_alignment,
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190 enum lst::byte_order in_byte_order,
191 unsigned int in_size,
192 enum signedness in_signedness,
193 enum base in_base,
194 lst::integer_type::roles in_roles) :
195 integer_type(
196 in_alignment, in_byte_order, in_size, in_signedness, in_base, std::move(in_roles))
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197{
198}
199
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200/*
201 * Due to a bug in g++ < 7.1, these specializations must be enclosed in the namespaces
202 * rather than using the usual `namespace::namespace::function` notation:
203 * see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56480.
204 */
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205namespace lttng {
206namespace sessiond {
207namespace trace {
0220be14 208template <>
7a73918f 209void signed_enumeration_type::accept(type_visitor& visitor) const
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210{
211 visitor.visit(*this);
212}
213
214template <>
7a73918f 215void unsigned_enumeration_type::accept(type_visitor& visitor) const
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216{
217 visitor.visit(*this);
218}
219
45110cdd 220template <>
7a73918f 221void variant_type<lst::signed_enumeration_type::mapping::range_t::range_integer_t>::accept(
28ab034a 222 lst::type_visitor& visitor) const
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223{
224 visitor.visit(*this);
225}
226
227template <>
7a73918f 228void variant_type<lst::unsigned_enumeration_type::mapping::range_t::range_integer_t>::accept(
28ab034a 229 lst::type_visitor& visitor) const
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230{
231 visitor.visit(*this);
232}
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233} /* namespace trace */
234} /* namespace sessiond */
235} /* namespace lttng */
45110cdd 236
0220be14 237lst::array_type::array_type(unsigned int in_alignment, type::cuptr in_element_type) :
28ab034a 238 type(in_alignment), element_type{ std::move(in_element_type) }
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239{
240}
241
242bool lst::array_type::_is_equal(const type& base_other) const noexcept
243{
244 const auto& other = static_cast<decltype(*this)&>(base_other);
245
246 return *this->element_type == *other.element_type;
247}
248
249lst::static_length_array_type::static_length_array_type(unsigned int in_alignment,
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250 type::cuptr in_element_type,
251 uint64_t in_length) :
252 array_type(in_alignment, std::move(in_element_type)), length{ in_length }
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253{
254}
255
256bool lst::static_length_array_type::_is_equal(const type& base_other) const noexcept
257{
258 const auto& other = static_cast<decltype(*this)&>(base_other);
259
260 return array_type::_is_equal(base_other) && this->length == other.length;
261}
262
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263lst::type::cuptr lst::static_length_array_type::copy() const
264{
265 return lttng::make_unique<static_length_array_type>(
28ab034a 266 alignment, element_type->copy(), length);
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267}
268
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269void lst::static_length_array_type::accept(type_visitor& visitor) const
270{
271 visitor.visit(*this);
272}
273
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274lst::dynamic_length_array_type::dynamic_length_array_type(
275 unsigned int in_alignment,
276 type::cuptr in_element_type,
277 lst::field_location in_length_field_location) :
0220be14 278 array_type(in_alignment, std::move(in_element_type)),
28ab034a 279 length_field_location{ std::move(in_length_field_location) }
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280{
281}
282
283bool lst::dynamic_length_array_type::_is_equal(const type& base_other) const noexcept
284{
285 const auto& other = static_cast<decltype(*this)&>(base_other);
286
287 return array_type::_is_equal(base_other) &&
28ab034a 288 this->length_field_location == other.length_field_location;
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289}
290
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291lst::type::cuptr lst::dynamic_length_array_type::copy() const
292{
293 return lttng::make_unique<dynamic_length_array_type>(
28ab034a 294 alignment, element_type->copy(), length_field_location);
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295}
296
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297void lst::dynamic_length_array_type::accept(type_visitor& visitor) const
298{
299 visitor.visit(*this);
300}
301
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302lst::static_length_blob_type::static_length_blob_type(unsigned int in_alignment,
303 uint64_t in_length_bytes,
304 roles in_roles) :
305 type(in_alignment), length_bytes{ in_length_bytes }, roles_{ std::move(in_roles) }
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306{
307}
308
309bool lst::static_length_blob_type::_is_equal(const type& base_other) const noexcept
310{
311 const auto& other = static_cast<decltype(*this)&>(base_other);
312
313 return length_bytes == other.length_bytes && roles_ == other.roles_;
314}
315
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316lst::type::cuptr lst::static_length_blob_type::copy() const
317{
318 return lttng::make_unique<static_length_blob_type>(alignment, length_bytes, roles_);
319}
320
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321void lst::static_length_blob_type::accept(type_visitor& visitor) const
322{
323 visitor.visit(*this);
324}
325
326lst::dynamic_length_blob_type::dynamic_length_blob_type(
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327 unsigned int in_alignment, lst::field_location in_length_field_location) :
328 type(in_alignment), length_field_location{ std::move(in_length_field_location) }
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329{
330}
331
332bool lst::dynamic_length_blob_type::_is_equal(const type& base_other) const noexcept
333{
334 const auto& other = dynamic_cast<decltype(*this)&>(base_other);
335
eda1aa02 336 return length_field_location == other.length_field_location;
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337}
338
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339lst::type::cuptr lst::dynamic_length_blob_type::copy() const
340{
341 return lttng::make_unique<dynamic_length_blob_type>(alignment, length_field_location);
342}
343
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344void lst::dynamic_length_blob_type::accept(type_visitor& visitor) const
345{
346 visitor.visit(*this);
347}
348
0220be14 349lst::string_type::string_type(unsigned int in_alignment, enum encoding in_encoding) :
28ab034a 350 type(in_alignment), encoding_{ in_encoding }
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351{
352}
353
354bool lst::string_type::_is_equal(const type& base_other) const noexcept
355{
356 const auto& other = static_cast<decltype(*this)&>(base_other);
357
65cd3c0c 358 return this->encoding_ == other.encoding_;
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359}
360
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361lst::static_length_string_type::static_length_string_type(unsigned int in_alignment,
362 enum encoding in_encoding,
363 uint64_t in_length) :
364 string_type(in_alignment, in_encoding), length{ in_length }
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365{
366}
367
368bool lst::static_length_string_type::_is_equal(const type& base_other) const noexcept
369{
370 const auto& other = static_cast<decltype(*this)&>(base_other);
371
372 return string_type::_is_equal(base_other) && this->length == other.length;
373}
374
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375lst::type::cuptr lst::static_length_string_type::copy() const
376{
377 return lttng::make_unique<static_length_string_type>(alignment, encoding_, length);
378}
379
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380void lst::static_length_string_type::accept(type_visitor& visitor) const
381{
382 visitor.visit(*this);
383}
384
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385lst::dynamic_length_string_type::dynamic_length_string_type(
386 unsigned int in_alignment,
387 enum encoding in_encoding,
388 field_location in_length_field_location) :
eda1aa02 389 string_type(in_alignment, in_encoding),
28ab034a 390 length_field_location{ std::move(in_length_field_location) }
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391{
392}
393
394bool lst::dynamic_length_string_type::_is_equal(const type& base_other) const noexcept
395{
396 const auto& other = static_cast<decltype(*this)&>(base_other);
397
398 return string_type::_is_equal(base_other) &&
28ab034a 399 this->length_field_location == other.length_field_location;
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400}
401
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402lst::type::cuptr lst::dynamic_length_string_type::copy() const
403{
404 return lttng::make_unique<dynamic_length_string_type>(
28ab034a 405 alignment, encoding_, length_field_location);
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406}
407
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408void lst::dynamic_length_string_type::accept(type_visitor& visitor) const
409{
410 visitor.visit(*this);
411}
412
413lst::null_terminated_string_type::null_terminated_string_type(unsigned int in_alignment,
28ab034a 414 enum encoding in_encoding) :
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415 string_type(in_alignment, in_encoding)
416{
417}
418
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419lst::type::cuptr lst::null_terminated_string_type::copy() const
420{
421 return lttng::make_unique<null_terminated_string_type>(alignment, encoding_);
422}
423
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424void lst::null_terminated_string_type::accept(type_visitor& visitor) const
425{
426 visitor.visit(*this);
427}
428
429lst::structure_type::structure_type(unsigned int in_alignment, fields in_fields) :
28ab034a 430 type(in_alignment), fields_{ std::move(in_fields) }
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431{
432}
433
434bool lst::structure_type::_is_equal(const type& base_other) const noexcept
435{
28ab034a 436 const auto& other = static_cast<decltype(*this)&>(base_other);
0220be14 437
da9dd521 438 return fields_are_equal(this->fields_, other.fields_);
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439}
440
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441lst::type::cuptr lst::structure_type::copy() const
442{
443 structure_type::fields copy_of_fields;
444
445 copy_of_fields.reserve(fields_.size());
446 for (const auto& field : fields_) {
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447 copy_of_fields.emplace_back(
448 lttng::make_unique<lst::field>(field->name, field->get_type().copy()));
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449 }
450
451 return lttng::make_unique<structure_type>(alignment, std::move(copy_of_fields));
452}
453
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454void lst::structure_type::accept(type_visitor& visitor) const
455{
456 visitor.visit(*this);
7a73918f 457}
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