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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 | #ifndef LTTNG_FIELD_H | |
9 | #define LTTNG_FIELD_H | |
10 | ||
6e01cdc6 | 11 | #include <common/format.hpp> |
b6bbb1d6 | 12 | #include <common/make-unique.hpp> |
6e01cdc6 JG |
13 | |
14 | #include <vendor/optional.hpp> | |
15 | ||
45110cdd | 16 | #include <algorithm> |
0220be14 JG |
17 | #include <memory> |
18 | #include <string> | |
19 | #include <type_traits> | |
20 | #include <vector> | |
21 | ||
0220be14 JG |
22 | namespace lttng { |
23 | namespace sessiond { | |
24 | namespace trace { | |
25 | ||
26 | class field_visitor; | |
27 | class type_visitor; | |
28 | ||
24ed18f2 JG |
29 | enum class byte_order { |
30 | BIG_ENDIAN_, | |
31 | LITTLE_ENDIAN_, | |
32 | }; | |
33 | ||
eda1aa02 JG |
34 | class field_location { |
35 | public: | |
36 | enum class root { | |
37 | PACKET_HEADER, | |
38 | PACKET_CONTEXT, | |
39 | EVENT_RECORD_HEADER, | |
40 | EVENT_RECORD_COMMON_CONTEXT, | |
41 | EVENT_RECORD_SPECIFIC_CONTEXT, | |
42 | EVENT_RECORD_PAYLOAD, | |
43 | }; | |
44 | ||
45 | using elements = std::vector<std::string>; | |
46 | ||
47 | field_location(root lookup_root, elements elements); | |
48 | bool operator==(const field_location& other) const noexcept; | |
49 | ||
50 | const root root_; | |
51 | const elements elements_; | |
52 | }; | |
53 | ||
0220be14 JG |
54 | /* |
55 | * Field, and the various field types, represents fields as exposed by the | |
56 | * LTTng tracers. These classes do not attempt to describe the complete spectrum of the CTF | |
57 | * specification. | |
58 | */ | |
59 | ||
60 | class type { | |
61 | public: | |
62 | using cuptr = std::unique_ptr<const type>; | |
63 | ||
64 | static byte_order reverse_byte_order(byte_order byte_order) noexcept; | |
65 | ||
66 | bool operator==(const type& other) const noexcept; | |
67 | bool operator!=(const type& other) const noexcept; | |
68 | virtual ~type(); | |
b6bbb1d6 JG |
69 | |
70 | /* Obtain an independent copy of `type`. */ | |
71 | virtual type::cuptr copy() const = 0; | |
72 | ||
0220be14 JG |
73 | virtual void accept(type_visitor& visitor) const = 0; |
74 | ||
75 | const unsigned int alignment; | |
76 | ||
77 | protected: | |
cd9adb8b | 78 | explicit type(unsigned int alignment); |
0220be14 JG |
79 | |
80 | private: | |
81 | virtual bool _is_equal(const type& rhs) const noexcept = 0; | |
82 | }; | |
83 | ||
84 | class field { | |
85 | public: | |
45110cdd | 86 | using uptr = std::unique_ptr<field>; |
0220be14 JG |
87 | using cuptr = std::unique_ptr<const field>; |
88 | ||
89 | field(std::string name, type::cuptr type); | |
90 | void accept(field_visitor& visitor) const; | |
91 | bool operator==(const field& other) const noexcept; | |
92 | ||
45110cdd JG |
93 | const type& get_type() const; |
94 | type::cuptr move_type() noexcept; | |
95 | ||
0220be14 | 96 | const std::string name; |
45110cdd JG |
97 | |
98 | private: | |
99 | type::cuptr _type; | |
0220be14 JG |
100 | }; |
101 | ||
102 | class integer_type : public type { | |
103 | public: | |
104 | enum class signedness { | |
105 | SIGNED, | |
106 | UNSIGNED, | |
107 | }; | |
108 | ||
109 | enum class base { | |
110 | BINARY = 2, | |
111 | OCTAL = 8, | |
112 | DECIMAL = 10, | |
113 | HEXADECIMAL = 16, | |
114 | }; | |
115 | ||
e7360180 JG |
116 | enum class role { |
117 | DEFAULT_CLOCK_TIMESTAMP, | |
118 | /* Packet header field class specific roles. */ | |
119 | DATA_STREAM_CLASS_ID, | |
120 | DATA_STREAM_ID, | |
121 | PACKET_MAGIC_NUMBER, | |
122 | /* Packet context field class specific roles. */ | |
123 | DISCARDED_EVENT_RECORD_COUNTER_SNAPSHOT, | |
124 | PACKET_CONTENT_LENGTH, | |
125 | PACKET_END_DEFAULT_CLOCK_TIMESTAMP, | |
126 | PACKET_SEQUENCE_NUMBER, | |
127 | PACKET_TOTAL_LENGTH, | |
128 | /* Event record field class roles. */ | |
129 | EVENT_RECORD_CLASS_ID, | |
130 | }; | |
131 | ||
132 | using roles = std::vector<role>; | |
133 | ||
0220be14 JG |
134 | integer_type(unsigned int alignment, |
135 | byte_order byte_order, | |
136 | unsigned int size, | |
137 | signedness signedness, | |
e7360180 JG |
138 | base base, |
139 | roles roles = {}); | |
0220be14 | 140 | |
cd9adb8b | 141 | type::cuptr copy() const override; |
b6bbb1d6 | 142 | |
cd9adb8b | 143 | void accept(type_visitor& visitor) const override; |
0220be14 JG |
144 | |
145 | const enum byte_order byte_order; | |
146 | const unsigned int size; | |
65cd3c0c JG |
147 | /* |
148 | * signedness and base are suffixed with '_' to work-around a bug in older | |
149 | * GCCs (before 6) that do not recognize hidden/shadowed enumeration as valid | |
150 | * nested-name-specifiers. | |
151 | */ | |
152 | const signedness signedness_; | |
153 | const base base_; | |
e7360180 | 154 | const roles roles_; |
0220be14 JG |
155 | |
156 | protected: | |
cd9adb8b | 157 | bool _is_equal(const type& other) const noexcept override; |
0220be14 JG |
158 | }; |
159 | ||
160 | class floating_point_type : public type { | |
161 | public: | |
162 | floating_point_type(unsigned int alignment, | |
163 | byte_order byte_order, | |
164 | unsigned int exponent_digits, | |
165 | unsigned int mantissa_digits); | |
166 | ||
cd9adb8b | 167 | type::cuptr copy() const final; |
b6bbb1d6 | 168 | |
cd9adb8b | 169 | void accept(type_visitor& visitor) const final; |
0220be14 JG |
170 | |
171 | const enum byte_order byte_order; | |
172 | const unsigned int exponent_digits; | |
173 | const unsigned int mantissa_digits; | |
174 | ||
175 | private: | |
cd9adb8b | 176 | bool _is_equal(const type& other) const noexcept final; |
0220be14 JG |
177 | }; |
178 | ||
179 | class enumeration_type : public integer_type { | |
180 | protected: | |
181 | enumeration_type(unsigned int alignment, | |
182 | enum byte_order byte_order, | |
183 | unsigned int size, | |
184 | enum signedness signedness, | |
e7360180 JG |
185 | enum base base, |
186 | integer_type::roles roles = {}); | |
0220be14 | 187 | |
cd9adb8b | 188 | void accept(type_visitor& visitor) const override = 0; |
0220be14 JG |
189 | }; |
190 | ||
191 | namespace details { | |
192 | template <class MappingIntegerType> | |
193 | class enumeration_mapping_range { | |
194 | public: | |
195 | using range_integer_t = MappingIntegerType; | |
196 | ||
197 | enumeration_mapping_range(MappingIntegerType in_begin, MappingIntegerType in_end) : | |
198 | begin{in_begin}, end{in_end} | |
199 | { | |
200 | } | |
201 | ||
202 | const range_integer_t begin, end; | |
203 | }; | |
204 | ||
205 | template <class MappingIntegerType> | |
206 | bool operator==(const enumeration_mapping_range<MappingIntegerType>& lhs, | |
207 | const enumeration_mapping_range<MappingIntegerType>& rhs) noexcept | |
208 | { | |
209 | return lhs.begin == rhs.begin && lhs.end == rhs.end; | |
210 | } | |
211 | ||
212 | template <class MappingIntegerType> | |
213 | class enumeration_mapping { | |
214 | public: | |
215 | using range_t = enumeration_mapping_range<MappingIntegerType>; | |
216 | ||
45110cdd | 217 | enumeration_mapping(const enumeration_mapping<MappingIntegerType>& other) = default; |
cd9adb8b JG |
218 | enumeration_mapping(const enumeration_mapping<MappingIntegerType>&& other) noexcept : |
219 | name{ std::move(other.name) }, range{ other.range } | |
0220be14 JG |
220 | { |
221 | } | |
222 | ||
da9dd521 | 223 | enumeration_mapping(std::string in_name, MappingIntegerType value) : name{std::move(in_name)}, range{value, value} |
0220be14 JG |
224 | { |
225 | } | |
226 | ||
227 | enumeration_mapping(std::string in_name, range_t in_range) : name{std::move(in_name)}, range{in_range} | |
228 | { | |
229 | } | |
230 | ||
231 | const std::string name; | |
da9dd521 JG |
232 | /* |
233 | * Only one range per mapping is supported for the moment as | |
234 | * the tracers (and CTF 1.8) can't express multiple ranges per | |
235 | * mapping, which is allowed by CTF 2. | |
236 | */ | |
237 | const range_t range; | |
0220be14 JG |
238 | }; |
239 | ||
240 | template <class MappingIntegerType> | |
241 | bool operator==(const enumeration_mapping<MappingIntegerType>& lhs, | |
242 | const enumeration_mapping<MappingIntegerType>& rhs) noexcept | |
243 | { | |
244 | return lhs.name == rhs.name && lhs.range == rhs.range; | |
245 | } | |
246 | } /* namespace details */ | |
247 | ||
b6bbb1d6 | 248 | template <typename MappingIntegerType> |
0220be14 JG |
249 | class typed_enumeration_type : public enumeration_type { |
250 | public: | |
251 | using mapping = details::enumeration_mapping<MappingIntegerType>; | |
252 | using mappings = std::vector<mapping>; | |
253 | ||
254 | static_assert(std::is_integral<MappingIntegerType>::value && | |
255 | sizeof(MappingIntegerType) == 8, | |
256 | "MappingIntegerType must be either int64_t or uint64_t"); | |
257 | ||
258 | typed_enumeration_type(unsigned int in_alignment, | |
259 | enum byte_order in_byte_order, | |
260 | unsigned int in_size, | |
0220be14 | 261 | enum base in_base, |
e7360180 JG |
262 | const std::shared_ptr<const mappings>& in_mappings, |
263 | integer_type::roles in_roles = {}) : | |
0220be14 JG |
264 | enumeration_type(in_alignment, |
265 | in_byte_order, | |
266 | in_size, | |
e7360180 JG |
267 | std::is_signed<MappingIntegerType>::value ? |
268 | integer_type::signedness::SIGNED : | |
269 | integer_type::signedness::UNSIGNED, | |
270 | in_base, | |
271 | std::move(in_roles)), | |
da9dd521 | 272 | mappings_{std::move(in_mappings)} |
0220be14 JG |
273 | { |
274 | } | |
275 | ||
cd9adb8b | 276 | type::cuptr copy() const override |
b6bbb1d6 JG |
277 | { |
278 | return lttng::make_unique<typed_enumeration_type<MappingIntegerType>>( | |
279 | alignment, byte_order, size, base_, mappings_, roles_); | |
280 | } | |
281 | ||
cd9adb8b | 282 | void accept(type_visitor& visitor) const final; |
0220be14 | 283 | |
da9dd521 | 284 | const std::shared_ptr<const mappings> mappings_; |
0220be14 JG |
285 | |
286 | private: | |
cd9adb8b | 287 | bool _is_equal(const type& base_other) const noexcept final |
0220be14 JG |
288 | { |
289 | const auto& other = static_cast<const typed_enumeration_type<MappingIntegerType>&>( | |
290 | base_other); | |
291 | ||
da9dd521 | 292 | return integer_type::_is_equal(base_other) && *this->mappings_ == *other.mappings_; |
0220be14 JG |
293 | } |
294 | }; | |
295 | ||
296 | /* Aliases for all allowed enumeration mapping types. */ | |
297 | using signed_enumeration_type = typed_enumeration_type<int64_t>; | |
298 | using unsigned_enumeration_type = typed_enumeration_type<uint64_t>; | |
299 | ||
300 | class array_type : public type { | |
301 | public: | |
302 | array_type(unsigned int alignment, type::cuptr element_type); | |
303 | ||
d7bfb9b0 | 304 | const type::cuptr element_type; |
0220be14 JG |
305 | |
306 | protected: | |
cd9adb8b | 307 | bool _is_equal(const type& base_other) const noexcept override; |
0220be14 JG |
308 | }; |
309 | ||
310 | class static_length_array_type : public array_type { | |
311 | public: | |
312 | static_length_array_type(unsigned int alignment, | |
313 | type::cuptr element_type, | |
314 | uint64_t in_length); | |
315 | ||
cd9adb8b | 316 | type::cuptr copy() const final; |
b6bbb1d6 | 317 | |
cd9adb8b | 318 | void accept(type_visitor& visitor) const final; |
0220be14 JG |
319 | |
320 | const uint64_t length; | |
321 | ||
322 | private: | |
cd9adb8b | 323 | bool _is_equal(const type& base_other) const noexcept final; |
0220be14 JG |
324 | }; |
325 | ||
326 | class dynamic_length_array_type : public array_type { | |
327 | public: | |
328 | dynamic_length_array_type(unsigned int alignment, | |
329 | type::cuptr element_type, | |
eda1aa02 | 330 | field_location length_field_location); |
0220be14 | 331 | |
cd9adb8b | 332 | type::cuptr copy() const final; |
b6bbb1d6 | 333 | |
cd9adb8b | 334 | void accept(type_visitor& visitor) const final; |
0220be14 | 335 | |
eda1aa02 | 336 | const field_location length_field_location; |
0220be14 JG |
337 | |
338 | private: | |
cd9adb8b | 339 | bool _is_equal(const type& base_other) const noexcept final; |
0220be14 JG |
340 | }; |
341 | ||
e7360180 JG |
342 | class static_length_blob_type : public type { |
343 | public: | |
344 | enum class role { | |
345 | /* Packet header field class specific role. */ | |
da9dd521 | 346 | METADATA_STREAM_UUID, |
e7360180 JG |
347 | }; |
348 | ||
349 | using roles = std::vector<role>; | |
350 | ||
351 | static_length_blob_type(unsigned int alignment, uint64_t in_length_bytes, roles roles = {}); | |
352 | ||
cd9adb8b | 353 | type::cuptr copy() const final; |
b6bbb1d6 | 354 | |
cd9adb8b | 355 | void accept(type_visitor& visitor) const final; |
e7360180 JG |
356 | |
357 | const uint64_t length_bytes; | |
358 | const roles roles_; | |
359 | ||
360 | private: | |
cd9adb8b | 361 | bool _is_equal(const type& base_other) const noexcept final; |
e7360180 JG |
362 | }; |
363 | ||
364 | class dynamic_length_blob_type : public type { | |
365 | public: | |
eda1aa02 | 366 | dynamic_length_blob_type(unsigned int alignment, field_location length_field_location); |
e7360180 | 367 | |
cd9adb8b | 368 | type::cuptr copy() const final; |
b6bbb1d6 | 369 | |
cd9adb8b | 370 | void accept(type_visitor& visitor) const final; |
e7360180 | 371 | |
eda1aa02 | 372 | const field_location length_field_location; |
e7360180 JG |
373 | |
374 | private: | |
cd9adb8b | 375 | bool _is_equal(const type& base_other) const noexcept final; |
e7360180 JG |
376 | }; |
377 | ||
0220be14 JG |
378 | class string_type : public type { |
379 | public: | |
380 | enum class encoding { | |
381 | ASCII, | |
382 | UTF8, | |
383 | }; | |
384 | ||
385 | string_type(unsigned int alignment, enum encoding encoding); | |
386 | ||
65cd3c0c JG |
387 | /* |
388 | * encoding is suffixed with '_' to work-around a bug in older | |
389 | * GCCs (before 6) that do not recognize hidden/shadowed enumeration as valid | |
390 | * nested-name-specifiers. | |
391 | */ | |
392 | const encoding encoding_; | |
0220be14 JG |
393 | |
394 | protected: | |
cd9adb8b | 395 | bool _is_equal(const type& base_other) const noexcept override; |
0220be14 JG |
396 | }; |
397 | ||
398 | class static_length_string_type : public string_type { | |
399 | public: | |
400 | static_length_string_type( | |
401 | unsigned int alignment, enum encoding in_encoding, uint64_t length); | |
b6bbb1d6 | 402 | |
cd9adb8b | 403 | type::cuptr copy() const final; |
b6bbb1d6 | 404 | |
cd9adb8b | 405 | void accept(type_visitor& visitor) const final; |
0220be14 JG |
406 | |
407 | const uint64_t length; | |
408 | ||
409 | private: | |
cd9adb8b | 410 | bool _is_equal(const type& base_other) const noexcept final; |
0220be14 JG |
411 | }; |
412 | ||
413 | class dynamic_length_string_type : public string_type { | |
414 | public: | |
415 | dynamic_length_string_type(unsigned int alignment, | |
416 | enum encoding in_encoding, | |
eda1aa02 | 417 | field_location length_field_location); |
b6bbb1d6 | 418 | |
cd9adb8b | 419 | type::cuptr copy() const final; |
b6bbb1d6 | 420 | |
cd9adb8b | 421 | void accept(type_visitor& visitor) const final; |
0220be14 | 422 | |
eda1aa02 | 423 | const field_location length_field_location; |
0220be14 JG |
424 | |
425 | private: | |
cd9adb8b | 426 | bool _is_equal(const type& base_other) const noexcept final; |
0220be14 JG |
427 | }; |
428 | ||
429 | class null_terminated_string_type : public string_type { | |
430 | public: | |
431 | null_terminated_string_type(unsigned int alignment, enum encoding in_encoding); | |
b6bbb1d6 | 432 | |
cd9adb8b | 433 | type::cuptr copy() const final; |
b6bbb1d6 | 434 | |
cd9adb8b | 435 | void accept(type_visitor& visitor) const final; |
0220be14 JG |
436 | }; |
437 | ||
438 | class structure_type : public type { | |
439 | public: | |
440 | using fields = std::vector<field::cuptr>; | |
441 | ||
442 | structure_type(unsigned int alignment, fields in_fields); | |
443 | ||
cd9adb8b | 444 | type::cuptr copy() const final; |
b6bbb1d6 | 445 | |
cd9adb8b | 446 | void accept(type_visitor& visitor) const final; |
0220be14 | 447 | |
da9dd521 | 448 | const fields fields_; |
0220be14 JG |
449 | |
450 | private: | |
cd9adb8b | 451 | bool _is_equal(const type& base_other) const noexcept final; |
0220be14 JG |
452 | }; |
453 | ||
b6bbb1d6 | 454 | template <typename MappingIntegerType> |
0220be14 | 455 | class variant_type : public type { |
45110cdd JG |
456 | static_assert(std::is_same<MappingIntegerType, |
457 | unsigned_enumeration_type::mapping::range_t:: | |
458 | range_integer_t>::value || | |
459 | std::is_same<MappingIntegerType, | |
460 | signed_enumeration_type::mapping::range_t:: | |
461 | range_integer_t>::value, | |
462 | "Variant mapping integer type must be one of those allowed by typed_enumeration_type"); | |
0220be14 | 463 | |
45110cdd JG |
464 | public: |
465 | using choice = std::pair<const details::enumeration_mapping<MappingIntegerType>, type::cuptr>; | |
466 | using choices = std::vector<choice>; | |
467 | ||
468 | variant_type(unsigned int in_alignment, | |
469 | field_location in_selector_field_location, | |
470 | choices in_choices) : | |
471 | type(in_alignment), | |
472 | selector_field_location{std::move(in_selector_field_location)}, | |
da9dd521 | 473 | choices_{std::move(in_choices)} |
45110cdd JG |
474 | { |
475 | } | |
0220be14 | 476 | |
cd9adb8b | 477 | type::cuptr copy() const final |
b6bbb1d6 JG |
478 | { |
479 | choices copy_of_choices; | |
480 | ||
481 | copy_of_choices.reserve(choices_.size()); | |
482 | for (const auto& current_choice : choices_) { | |
483 | copy_of_choices.emplace_back( | |
484 | current_choice.first, current_choice.second->copy()); | |
485 | } | |
486 | ||
487 | return lttng::make_unique<variant_type<MappingIntegerType>>( | |
488 | alignment, selector_field_location, std::move(copy_of_choices)); | |
489 | } | |
490 | ||
cd9adb8b | 491 | void accept(type_visitor& visitor) const final; |
0220be14 | 492 | |
eda1aa02 | 493 | const field_location selector_field_location; |
da9dd521 | 494 | const choices choices_; |
0220be14 JG |
495 | |
496 | private: | |
45110cdd JG |
497 | static bool _choices_are_equal(const choices& a, const choices& b) |
498 | { | |
499 | if (a.size() != b.size()) { | |
500 | return false; | |
501 | } | |
502 | ||
45110cdd JG |
503 | return std::equal(a.cbegin(), a.cend(), b.cbegin(), |
504 | [](const choice& choice_a, const choice& choice_b) { | |
505 | return choice_a.first == choice_b.first && | |
506 | *choice_a.second == *choice_b.second; | |
507 | }); | |
508 | } | |
509 | ||
cd9adb8b | 510 | bool _is_equal(const type& base_other) const noexcept final |
45110cdd JG |
511 | { |
512 | const auto& other = static_cast<decltype(*this)&>(base_other); | |
513 | ||
514 | return selector_field_location == other.selector_field_location && | |
da9dd521 | 515 | _choices_are_equal(choices_, other.choices_); |
45110cdd | 516 | } |
0220be14 JG |
517 | }; |
518 | ||
519 | class field_visitor { | |
520 | public: | |
521 | virtual ~field_visitor() = default; | |
522 | virtual void visit(const field& field) = 0; | |
523 | ||
524 | protected: | |
525 | field_visitor() = default; | |
526 | }; | |
527 | ||
528 | class type_visitor { | |
529 | public: | |
530 | virtual ~type_visitor() = default; | |
531 | virtual void visit(const integer_type& type) = 0; | |
532 | virtual void visit(const floating_point_type& type) = 0; | |
533 | virtual void visit(const signed_enumeration_type& type) = 0; | |
534 | virtual void visit(const unsigned_enumeration_type& type) = 0; | |
535 | virtual void visit(const static_length_array_type& type) = 0; | |
536 | virtual void visit(const dynamic_length_array_type& type) = 0; | |
e7360180 JG |
537 | virtual void visit(const static_length_blob_type& type) = 0; |
538 | virtual void visit(const dynamic_length_blob_type& type) = 0; | |
0220be14 JG |
539 | virtual void visit(const null_terminated_string_type& type) = 0; |
540 | virtual void visit(const static_length_string_type& type) = 0; | |
541 | virtual void visit(const dynamic_length_string_type& type) = 0; | |
542 | virtual void visit(const structure_type& type) = 0; | |
45110cdd JG |
543 | virtual void visit(const variant_type<signed_enumeration_type::mapping::range_t::range_integer_t>& type) = 0; |
544 | virtual void visit(const variant_type<unsigned_enumeration_type::mapping::range_t::range_integer_t>& type) = 0; | |
0220be14 JG |
545 | |
546 | protected: | |
547 | type_visitor() = default; | |
548 | }; | |
549 | ||
550 | } /* namespace trace */ | |
551 | } /* namespace sessiond */ | |
552 | } /* namespace lttng */ | |
553 | ||
6e01cdc6 | 554 | /* |
b6bbb1d6 JG |
555 | * Field formatters for libfmt. |
556 | * | |
6e01cdc6 JG |
557 | * Due to a bug in g++ < 7.1, this specialization must be enclosed in the fmt namespace, |
558 | * see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56480. | |
559 | */ | |
560 | namespace fmt { | |
561 | template <> | |
562 | struct formatter<lttng::sessiond::trace::field_location> : formatter<std::string> { | |
563 | template <typename FormatCtx> | |
564 | typename FormatCtx::iterator format( | |
565 | const lttng::sessiond::trace::field_location& location, FormatCtx& ctx) | |
566 | { | |
567 | std::string location_str{"["}; | |
568 | ||
569 | switch (location.root_) { | |
570 | case lttng::sessiond::trace::field_location::root::PACKET_HEADER: | |
571 | location_str += "\"packet-header\""; | |
572 | break; | |
573 | case lttng::sessiond::trace::field_location::root::PACKET_CONTEXT: | |
574 | location_str += "\"packet-context\""; | |
575 | break; | |
576 | case lttng::sessiond::trace::field_location::root::EVENT_RECORD_HEADER: | |
577 | location_str += "\"event-record-header\""; | |
578 | break; | |
579 | case lttng::sessiond::trace::field_location::root::EVENT_RECORD_COMMON_CONTEXT: | |
580 | location_str += "\"event-record-common-context\""; | |
581 | break; | |
582 | case lttng::sessiond::trace::field_location::root::EVENT_RECORD_SPECIFIC_CONTEXT: | |
583 | location_str += "\"event-record-specific-context\""; | |
584 | break; | |
585 | case lttng::sessiond::trace::field_location::root::EVENT_RECORD_PAYLOAD: | |
586 | location_str += "\"event-record-payload\""; | |
587 | break; | |
588 | } | |
589 | ||
590 | for (const auto &name : location.elements_) { | |
591 | location_str += ", \"" + name + "\""; | |
592 | } | |
593 | ||
594 | location_str += "]"; | |
595 | return format_to(ctx.out(), location_str); | |
596 | } | |
597 | }; | |
b6bbb1d6 JG |
598 | |
599 | namespace details { | |
600 | template <typename MappingIntegerType> | |
601 | ::std::string format_mapping_range(typename lttng::sessiond::trace::typed_enumeration_type< | |
602 | MappingIntegerType>::mapping::range_t range) | |
603 | { | |
604 | if (range.begin == range.end) { | |
605 | return ::fmt::format("[{}]", range.begin); | |
606 | } else { | |
607 | return ::fmt::format("[{}, {}]", range.begin, range.end); | |
608 | } | |
609 | } | |
610 | } /* namespace details */ | |
611 | ||
612 | template <> | |
613 | struct formatter<typename lttng::sessiond::trace::signed_enumeration_type::mapping::range_t> | |
614 | : formatter<std::string> { | |
615 | template <typename FormatCtx> | |
616 | typename FormatCtx::iterator | |
617 | format(typename lttng::sessiond::trace::signed_enumeration_type::mapping::range_t range, | |
618 | FormatCtx& ctx) | |
619 | { | |
620 | return format_to(ctx.out(), | |
621 | details::format_mapping_range< | |
622 | lttng::sessiond::trace::signed_enumeration_type:: | |
623 | mapping::range_t::range_integer_t>( | |
624 | range)); | |
625 | } | |
626 | }; | |
627 | ||
628 | template <> | |
629 | struct formatter<typename lttng::sessiond::trace::unsigned_enumeration_type::mapping::range_t> | |
630 | : formatter<std::string> { | |
631 | template <typename FormatCtx> | |
632 | typename FormatCtx::iterator | |
633 | format(typename lttng::sessiond::trace::unsigned_enumeration_type::mapping::range_t range, | |
634 | FormatCtx& ctx) | |
635 | { | |
636 | return format_to(ctx.out(), | |
637 | details::format_mapping_range< | |
638 | lttng::sessiond::trace::unsigned_enumeration_type:: | |
639 | mapping::range_t::range_integer_t>( | |
640 | range)); | |
641 | } | |
642 | }; | |
643 | ||
6e01cdc6 JG |
644 | } /* namespace fmt */ |
645 | ||
0220be14 | 646 | #endif /* LTTNG_FIELD_H */ |