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1 | #ifndef BABELTRACE2_TRACE_IR_FIELD_CLASS_H |
2 | #define BABELTRACE2_TRACE_IR_FIELD_CLASS_H | |
5cd6d0e5 PP |
3 | |
4 | /* | |
bbb7b5f0 | 5 | * Copyright (c) 2010-2019 EfficiOS Inc. and Linux Foundation |
5cd6d0e5 | 6 | * |
5cd6d0e5 PP |
7 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
8 | * of this software and associated documentation files (the "Software"), to deal | |
9 | * in the Software without restriction, including without limitation the rights | |
10 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
11 | * copies of the Software, and to permit persons to whom the Software is | |
12 | * furnished to do so, subject to the following conditions: | |
13 | * | |
14 | * The above copyright notice and this permission notice shall be included in | |
15 | * all copies or substantial portions of the Software. | |
16 | * | |
17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
18 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
20 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
21 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
22 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
23 | * SOFTWARE. | |
5cd6d0e5 PP |
24 | */ |
25 | ||
4fa90f32 PP |
26 | #ifndef __BT_IN_BABELTRACE_H |
27 | # error "Please include <babeltrace2/babeltrace.h> instead." | |
28 | #endif | |
29 | ||
d24d5663 PP |
30 | #include <stdint.h> |
31 | #include <stddef.h> | |
32 | ||
3fadfbc0 | 33 | #include <babeltrace2/types.h> |
40f4ba76 | 34 | |
5cd6d0e5 PP |
35 | #ifdef __cplusplus |
36 | extern "C" { | |
37 | #endif | |
38 | ||
43c59509 PP |
39 | /*! |
40 | @defgroup api-tir-fc Field classes | |
41 | @ingroup api-tir | |
42 | ||
43 | @brief | |
44 | Classes of \bt_p_field. | |
45 | ||
46 | <strong><em>Field classes</em></strong> are the classes of \bt_p_field: | |
47 | ||
48 | @image html field-class-zoom.png | |
49 | ||
50 | Field classes are \ref api-tir "trace IR" metadata objects. | |
51 | ||
52 | There are many types of field classes. They can be divided into two main | |
53 | categories: | |
54 | ||
55 | <dl> | |
56 | <dt>Scalar</dt> | |
57 | <dd> | |
58 | Classes of fields which contain a simple value. | |
59 | ||
60 | The scalar field classes are: | |
61 | ||
62 | - \ref api-tir-fc-bool "Boolean" | |
63 | - \ref api-tir-fc-ba "Bit array" | |
64 | - \ref api-tir-fc-int "Integer" (unsigned and signed) | |
65 | - \ref api-tir-fc-enum "Enumeration" (unsigned and signed) | |
66 | - \ref api-tir-fc-real "Real" (single-precision and double-precision) | |
67 | - \ref api-tir-fc-string "String" | |
68 | </dd> | |
69 | ||
70 | <dt>Container</dt> | |
71 | <dd> | |
72 | Classes of fields which contain other fields. | |
73 | ||
74 | The container field classes are: | |
75 | ||
76 | - \ref api-tir-fc-array "Array" (static and dynamic) | |
77 | - \ref api-tir-fc-struct "Structure" | |
78 | - \ref api-tir-fc-opt "Option" | |
79 | - \ref api-tir-fc-var "Variant" | |
80 | </dd> | |
81 | </dl> | |
82 | ||
83 | @image html fc-to-field.png "Fields (green) are instances of field classes (orange)." | |
84 | ||
85 | Some field classes conceptually inherit other field classes, eventually | |
86 | making an inheritance hierarchy. For example, a \bt_sarray_fc | |
87 | \em is an array field class. Therefore, a static array field class has | |
88 | any property that an array field class has. | |
89 | ||
90 | The complete field class inheritance hierarchy is: | |
91 | ||
92 | @image html all-field-classes.png | |
93 | ||
94 | In the illustration above: | |
95 | ||
96 | - You can create any field class with a dark background with | |
97 | a dedicated <code>bt_field_class_*_create()</code> function. | |
98 | ||
99 | - A field class with a pale background is an \em abstract field class: | |
100 | you cannot create it, but it has properties, therefore there are | |
101 | functions which apply to it. | |
102 | ||
103 | For example, bt_field_class_integer_set_preferred_display_base() | |
104 | applies to any \bt_int_fc. | |
105 | ||
106 | Field classes are \ref api-fund-shared-object "shared objects": get a | |
107 | new reference with bt_field_class_get_ref() and put an existing | |
108 | reference with bt_field_class_put_ref(). | |
109 | ||
110 | Some library functions \ref api-fund-freezing "freeze" field classes on | |
111 | success. The documentation of those functions indicate this | |
112 | postcondition. | |
113 | ||
114 | All the field class types share the same C type, #bt_field_class. | |
115 | ||
116 | Get the type enumerator of a field class with bt_field_class_get_type(). | |
117 | Get whether or not a field class type conceptually \em is a given type | |
118 | with the inline bt_field_class_type_is() function. | |
119 | ||
120 | The following table shows the available type enumerators and creation | |
121 | functions for each type of \em concrete (non-abstract) field class: | |
122 | ||
123 | <table> | |
124 | <tr> | |
125 | <th>Name | |
126 | <th>Type enumerator | |
127 | <th>Creation function | |
128 | <tr> | |
129 | <td><em>\ref api-tir-fc-bool "Boolean"</em> | |
130 | <td>#BT_FIELD_CLASS_TYPE_BOOL | |
131 | <td>bt_field_class_bool_create() | |
132 | <tr> | |
133 | <td><em>\ref api-tir-fc-ba "Bit array"</em> | |
134 | <td>#BT_FIELD_CLASS_TYPE_BIT_ARRAY | |
135 | <td>bt_field_class_bit_array_create() | |
136 | <tr> | |
137 | <td><em>Unsigned \ref api-tir-fc-int "integer"</em> | |
138 | <td>#BT_FIELD_CLASS_TYPE_UNSIGNED_INTEGER | |
139 | <td>bt_field_class_integer_unsigned_create() | |
140 | <tr> | |
141 | <td><em>Signed \ref api-tir-fc-int "integer"</em> | |
142 | <td>#BT_FIELD_CLASS_TYPE_SIGNED_INTEGER | |
143 | <td>bt_field_class_integer_signed_create() | |
144 | <tr> | |
145 | <td><em>Unsigned \ref api-tir-fc-enum "enumeration"</em> | |
146 | <td>#BT_FIELD_CLASS_TYPE_UNSIGNED_ENUMERATION | |
147 | <td>bt_field_class_enumeration_unsigned_create() | |
148 | <tr> | |
149 | <td><em>Signed \ref api-tir-fc-enum "enumeration"</em> | |
150 | <td>#BT_FIELD_CLASS_TYPE_SIGNED_ENUMERATION | |
151 | <td>bt_field_class_enumeration_signed_create() | |
152 | <tr> | |
153 | <td><em>Single-precision \ref api-tir-fc-real "real"</em> | |
154 | <td>#BT_FIELD_CLASS_TYPE_SINGLE_PRECISION_REAL | |
155 | <td>bt_field_class_real_single_precision_create() | |
156 | <tr> | |
157 | <td><em>Double-precision \ref api-tir-fc-real "real"</em> | |
158 | <td>#BT_FIELD_CLASS_TYPE_DOUBLE_PRECISION_REAL | |
159 | <td>bt_field_class_real_double_precision_create() | |
160 | <tr> | |
161 | <td><em>\ref api-tir-fc-string "String"</em> | |
162 | <td>#BT_FIELD_CLASS_TYPE_STRING | |
163 | <td>bt_field_class_string_create() | |
164 | <tr> | |
165 | <td><em>Static \ref api-tir-fc-array "array"</em> | |
166 | <td>#BT_FIELD_CLASS_TYPE_STATIC_ARRAY | |
167 | <td>bt_field_class_array_static_create() | |
168 | <tr> | |
169 | <td><em>Dynamic \ref api-tir-fc-array "array" (no length field)</em> | |
170 | <td>#BT_FIELD_CLASS_TYPE_DYNAMIC_ARRAY_WITHOUT_LENGTH_FIELD | |
171 | <td>bt_field_class_array_dynamic_create() | |
172 | <tr> | |
173 | <td><em>Dynamic \ref api-tir-fc-array "array" (with length field)</em> | |
174 | <td>#BT_FIELD_CLASS_TYPE_DYNAMIC_ARRAY_WITH_LENGTH_FIELD | |
175 | <td>bt_field_class_array_dynamic_create() | |
176 | <tr> | |
177 | <td><em>\ref api-tir-fc-struct "Structure"</em> | |
178 | <td>#BT_FIELD_CLASS_TYPE_STRUCTURE | |
179 | <td>bt_field_class_structure_create() | |
180 | <tr> | |
181 | <td><em>\ref api-tir-fc-opt "Option" (no selector field)</em> | |
182 | <td>#BT_FIELD_CLASS_TYPE_OPTION_WITHOUT_SELECTOR_FIELD | |
183 | <td>bt_field_class_option_without_selector_create() | |
184 | <tr> | |
185 | <td><em>\ref api-tir-fc-opt "Option" (boolean selector field)</em> | |
186 | <td>#BT_FIELD_CLASS_TYPE_OPTION_WITH_BOOL_SELECTOR_FIELD | |
187 | <td>bt_field_class_option_with_selector_field_bool_create() | |
188 | <tr> | |
189 | <td><em>\ref api-tir-fc-opt "Option" (unsigned integer selector field)</em> | |
190 | <td>#BT_FIELD_CLASS_TYPE_OPTION_WITH_UNSIGNED_INTEGER_SELECTOR_FIELD | |
191 | <td>bt_field_class_option_with_selector_field_integer_unsigned_create() | |
192 | <tr> | |
193 | <td><em>\ref api-tir-fc-opt "Option" (signed integer selector field)</em> | |
194 | <td>#BT_FIELD_CLASS_TYPE_OPTION_WITH_SIGNED_INTEGER_SELECTOR_FIELD | |
195 | <td>bt_field_class_option_with_selector_field_integer_signed_create() | |
196 | <tr> | |
197 | <td><em>\ref api-tir-fc-var "Variant" (no selector field)</em> | |
198 | <td>#BT_FIELD_CLASS_TYPE_VARIANT_WITHOUT_SELECTOR_FIELD | |
199 | <td>bt_field_class_variant_create() | |
200 | <tr> | |
201 | <td><em>\ref api-tir-fc-var "Variant" (unsigned integer selector field)</em> | |
202 | <td>#BT_FIELD_CLASS_TYPE_VARIANT_WITH_UNSIGNED_INTEGER_SELECTOR_FIELD | |
203 | <td>bt_field_class_variant_create() | |
204 | <tr> | |
205 | <td><em>\ref api-tir-fc-var "Variant" (signed integer selector field)</em> | |
206 | <td>#BT_FIELD_CLASS_TYPE_VARIANT_WITH_SIGNED_INTEGER_SELECTOR_FIELD | |
207 | <td>bt_field_class_variant_create() | |
208 | </table> | |
209 | ||
210 | You need a \bt_trace_cls to create a field class: create one from a | |
211 | \bt_self_comp with bt_trace_class_create(). | |
212 | ||
213 | Outside the field class API, you can use field classes at four | |
214 | locations, called <em>scopes</em>, within the trace IR API: | |
215 | ||
216 | - To set the packet context field class of a \bt_stream_cls with | |
217 | bt_stream_class_set_packet_context_field_class(). | |
218 | ||
219 | - To set the event common context field class of a stream class with | |
220 | bt_stream_class_set_event_common_context_field_class(). | |
221 | ||
222 | - To set the specific context field class of an \bt_ev_cls with | |
223 | bt_event_class_set_specific_context_field_class(). | |
224 | ||
225 | - To set the payload field class of an event class with | |
226 | bt_event_class_set_payload_field_class(). | |
227 | ||
228 | When you call one of the four functions above: | |
229 | ||
230 | - The passed field class must be a \bt_struct_fc. | |
231 | ||
232 | - You must \em not have already called any of the four functions above | |
233 | with the passed field class or with any of its contained field | |
234 | classes. | |
235 | ||
236 | - If any of the field classes recursively contained in the passed | |
237 | field class has a \ref api-tir-fc-link "link to another field class", | |
238 | it must honor the field class link rules. | |
239 | ||
240 | Once you have called one of the four functions above, the passed field | |
241 | class becomes \ref api-fund-freezing "frozen". | |
242 | ||
243 | <h1>Common field class property</h1> | |
244 | ||
245 | A field class has the following common property: | |
246 | ||
247 | <dl> | |
248 | <dt> | |
249 | \anchor api-tir-fc-prop-user-attrs | |
250 | \bt_dt_opt User attributes | |
251 | </dt> | |
252 | <dd> | |
253 | User attributes of the field class. | |
254 | ||
255 | User attributes are custom attributes attached to a field class. | |
256 | ||
257 | Use bt_field_class_set_user_attributes(), | |
258 | bt_field_class_borrow_user_attributes(), and | |
259 | bt_field_class_borrow_user_attributes_const(). | |
260 | </dd> | |
261 | </dl> | |
262 | ||
263 | <h1>\anchor api-tir-fc-bool Boolean field class</h1> | |
264 | ||
265 | @image html fc-bool.png | |
266 | ||
267 | A <strong><em>boolean field class</em></strong> is the class | |
268 | of \bt_p_bool_field. | |
269 | ||
270 | A boolean field contains a boolean value (#BT_TRUE or #BT_FALSE). | |
271 | ||
272 | Create a boolean field class with bt_field_class_bool_create(). | |
273 | ||
274 | A boolean field class has no specific properties. | |
275 | ||
276 | <h1>\anchor api-tir-fc-ba Bit array field class</h1> | |
277 | ||
278 | @image html fc-ba.png | |
279 | ||
280 | A <strong><em>bit array field class</em></strong> is the class | |
281 | of \bt_p_ba_field. | |
282 | ||
283 | A bit array field contains a fixed-length array of bits. | |
284 | ||
285 | Create a bit array field class with bt_field_class_bit_array_create(). | |
286 | ||
287 | A bit array field class has the following property: | |
288 | ||
289 | <dl> | |
290 | <dt> | |
291 | \anchor api-tir-fc-ba-prop-len | |
292 | Length | |
293 | </dt> | |
294 | <dd> | |
295 | Number of bits contained in the instances (bit array fields) of | |
296 | the bit array field class. | |
297 | ||
298 | As of \bt_name_version_min_maj, the maximum length of a bit array | |
299 | field is 64. | |
300 | ||
301 | You cannot change the length once the bit array field class is | |
302 | created. | |
303 | ||
304 | Get a bit array field class's length with | |
305 | bt_field_class_bit_array_get_length(). | |
306 | </dd> | |
307 | </dl> | |
308 | ||
309 | <h1>\anchor api-tir-fc-int Integer field classes</h1> | |
310 | ||
311 | @image html fc-int.png | |
312 | ||
313 | <strong><em>Integer field classes</em></strong> are classes | |
314 | of \bt_p_int_field. | |
315 | ||
316 | Integer fields contain integral values. | |
317 | ||
318 | An integer field class is an \em abstract field class: you cannot create | |
319 | one. The concrete integer field classes are: | |
320 | ||
321 | <dl> | |
322 | <dt>Unsigned integer field class</dt> | |
323 | <dd> | |
324 | Its instances (unsigned integer fields) contain an unsigned integral | |
325 | value (\c uint64_t). | |
326 | ||
327 | Create with bt_field_class_integer_unsigned_create(). | |
328 | </dd> | |
329 | ||
330 | <dt>Signed integer field class</dt> | |
331 | <dd> | |
332 | Its instances (signed integer fields) contain a signed integral | |
333 | value (\c int64_t). | |
334 | ||
335 | Create with bt_field_class_integer_signed_create(). | |
336 | </dd> | |
337 | </dl> | |
338 | ||
339 | Integer field classes have the following common properties: | |
340 | ||
341 | <dl> | |
342 | <dt> | |
343 | \anchor api-tir-fc-int-prop-size | |
344 | Field value range | |
345 | </dt> | |
346 | <dd> | |
347 | Expected range of values that the instances (integer fields) | |
348 | of the integer field class can contain. | |
349 | ||
350 | For example, if the field value range of an unsigned integer | |
351 | field class is [0, 16383], then its unsigned integer fields | |
352 | can only contain the values from 0 to 16383. | |
353 | ||
354 | \bt_cp_sink_comp can benefit from this property to make some space | |
355 | optimizations when writing trace data. | |
356 | ||
357 | Use bt_field_class_integer_set_field_value_range() and | |
358 | bt_field_class_integer_get_field_value_range(). | |
359 | </dd> | |
360 | ||
361 | <dt> | |
362 | \anchor api-tir-fc-int-prop-base | |
363 | Preferred display base | |
364 | </dt> | |
365 | <dd> | |
366 | Preferred base (2, 8, 10, or 16) to use when displaying the | |
367 | instances (integer fields) of the integer field class. | |
368 | ||
369 | Use bt_field_class_integer_set_preferred_display_base() and | |
370 | bt_field_class_integer_get_preferred_display_base(). | |
371 | </dd> | |
372 | </dl> | |
373 | ||
374 | <h2>\anchor api-tir-fc-enum Enumeration field classes</h2> | |
375 | ||
376 | @image html fc-enum.png | |
377 | ||
378 | <strong><em>Enumeration field classes</em></strong> are classes | |
379 | of \bt_p_enum_field. | |
380 | ||
381 | Enumeration field classes \em are \bt_p_int_fc: they have the integer | |
382 | field classes properties. | |
383 | ||
384 | Enumeration fields \em are integer fields: they contain integral values. | |
385 | ||
386 | Enumeration field classes associate labels (strings) to specific | |
387 | ranges of integral values. This association is called an enumeration | |
388 | field class <em>mapping</em>. | |
389 | ||
390 | For example, if an enumeration field class maps the label \c SUGAR to | |
391 | the integer ranges [1, 19] and [25, 31], then an instance | |
392 | (enumeration field) of this field class with the value 15 or 28 has the | |
393 | label <code>SUGAR</code>. | |
394 | ||
395 | An enumeration field class is an \em abstract field class: you cannot | |
396 | create one. The concrete enumeration field classes are: | |
397 | ||
398 | <dl> | |
399 | <dt>Unsigned enumeration field class</dt> | |
400 | <dd> | |
401 | Its instances (unsigned enumeration fields) contain an unsigned | |
402 | value (\c uint64_t). | |
403 | ||
404 | Create with bt_field_class_enumeration_unsigned_create(). | |
405 | </dd> | |
406 | ||
407 | <dt>Signed enumeration field class</dt> | |
408 | <dd> | |
409 | Its instances (signed enumeration fields) contain a signed value | |
410 | (\c int64_t). | |
411 | ||
412 | Create with bt_field_class_enumeration_signed_create(). | |
413 | </dd> | |
414 | </dl> | |
415 | ||
416 | Enumeration field classes have the following common property: | |
417 | ||
418 | <dl> | |
419 | <dt> | |
420 | \anchor api-tir-fc-enum-prop-mappings | |
421 | Mappings | |
422 | </dt> | |
423 | <dd> | |
424 | Set of mappings of the enumeration field class. | |
425 | ||
426 | An enumeration field class mapping is a label (string) and an | |
427 | \bt_int_rs. | |
428 | ||
429 | The integer ranges of a given mapping or of multiple mappings of | |
430 | the same enumeration field class can overlap. For example, | |
431 | an enumeration field class can have those two mappings: | |
432 | ||
433 | - <code>CALORIES</code>: [1, 11], [15, 37] | |
434 | - <code>SODIUM</code>: [7, 13] | |
435 | ||
436 | In that case, the values 2 and 30 correpond to the label | |
437 | <code>CALORIES</code>, the value 12 to the label | |
438 | <code>SODIUM</code>, and the value 10 to the labels | |
439 | \c CALORIES \em and <code>SODIUM</code>. | |
440 | ||
441 | Two mappings of the same enumeration field class cannot have the | |
442 | same label. | |
443 | ||
444 | Add a mapping to an enumeration field class with | |
445 | bt_field_class_enumeration_unsigned_add_mapping() or | |
446 | bt_field_class_enumeration_signed_add_mapping(). | |
447 | ||
448 | Get the number of mappings in an enumeration field class with | |
449 | bt_field_class_enumeration_get_mapping_count(). | |
450 | ||
451 | Borrow a mapping from an enumeration field class with | |
452 | bt_field_class_enumeration_unsigned_borrow_mapping_by_index_const(), | |
453 | bt_field_class_enumeration_signed_borrow_mapping_by_index_const(), | |
454 | bt_field_class_enumeration_unsigned_borrow_mapping_by_label_const(), | |
455 | and | |
456 | bt_field_class_enumeration_signed_borrow_mapping_by_label_const(). | |
457 | ||
458 | An enumeration field class mapping is a | |
459 | \ref api-fund-unique-object "unique object": it | |
460 | belongs to the enumeration field class which contains it. | |
461 | ||
462 | There are two enumeration field class mapping types, depending on | |
463 | the field class's type: | |
464 | #bt_field_class_enumeration_unsigned_mapping and | |
465 | #bt_field_class_enumeration_signed_mapping. | |
466 | ||
467 | There is also the #bt_field_class_enumeration_mapping type for | |
468 | common properties and operations (for example, | |
469 | bt_field_class_enumeration_mapping_get_label()). | |
470 | \ref api-fund-c-typing "Upcast" a specific enumeration field class | |
471 | mapping to the #bt_field_class_enumeration_mapping type with | |
472 | bt_field_class_enumeration_unsigned_mapping_as_mapping_const() or | |
473 | bt_field_class_enumeration_signed_mapping_as_mapping_const(). | |
474 | ||
475 | Get all the enumeration field class labels mapped to a given integer | |
476 | value with | |
477 | bt_field_class_enumeration_unsigned_get_mapping_labels_for_value() | |
478 | and | |
479 | bt_field_class_enumeration_signed_get_mapping_labels_for_value(). | |
480 | </dd> | |
481 | </dl> | |
482 | ||
483 | <h1>\anchor api-tir-fc-real Real field classes</h1> | |
484 | ||
485 | @image html fc-real.png | |
486 | ||
487 | <strong><em>Real field classes</em></strong> are classes | |
488 | of \bt_p_real_field. | |
489 | ||
490 | Real fields contain | |
491 | <a href="https://en.wikipedia.org/wiki/Real_number">real</a> | |
492 | values (\c float or \c double types). | |
493 | ||
494 | A real field class is an \em abstract field class: you cannot create | |
495 | one. The concrete real field classes are: | |
496 | ||
497 | <dl> | |
498 | <dt>Single-precision real field class</dt> | |
499 | <dd> | |
500 | Its instances (single-precision real fields) contain a \c float | |
501 | value. | |
502 | ||
503 | Create with bt_field_class_real_single_precision_create(). | |
504 | </dd> | |
505 | ||
506 | <dt>Double-precision real field class</dt> | |
507 | <dd> | |
508 | Its instances (double-precision real fields) contain a \c double | |
509 | value. | |
510 | ||
511 | Create with bt_field_class_real_double_precision_create(). | |
512 | </dd> | |
513 | </dl> | |
514 | ||
515 | Real field classes have no specific properties. | |
516 | ||
517 | <h1>\anchor api-tir-fc-string String field class</h1> | |
518 | ||
519 | @image html fc-string.png | |
520 | ||
521 | A <strong><em>string field class</em></strong> is the class | |
522 | of \bt_p_string_field. | |
523 | ||
524 | A string field contains an UTF-8 string value. | |
525 | ||
526 | Create a string field class with bt_field_class_string_create(). | |
527 | ||
528 | A string field class has no specific properties. | |
529 | ||
530 | <h1>\anchor api-tir-fc-array Array field classes</h1> | |
531 | ||
532 | @image html fc-array.png | |
533 | ||
534 | <strong><em>Array field classes</em></strong> are classes | |
535 | of \bt_p_array_field. | |
536 | ||
537 | Array fields contain zero or more fields which have the same class. | |
538 | ||
539 | An array field class is an \em abstract field class: you cannot create | |
540 | one. The concrete array field classes are: | |
541 | ||
542 | <dl> | |
543 | <dt>Static array field class</dt> | |
544 | <dd> | |
545 | Its instances (static array fields) contain a fixed number of | |
546 | fields. | |
547 | ||
548 | Create with bt_field_class_array_static_create(). | |
549 | ||
550 | A static array field class has the following specific property: | |
551 | ||
552 | <dl> | |
553 | <dt> | |
554 | \anchor api-tir-fc-sarray-prop-len | |
555 | Length | |
556 | </dt> | |
557 | <dd> | |
558 | Number of fields contained in the instances (static array | |
559 | fields) of the static array field class. | |
560 | ||
561 | You cannot change the length once the static array field class | |
562 | is created. | |
563 | ||
564 | Get a static array field class's length with | |
565 | bt_field_class_array_static_get_length(). | |
566 | </dd> | |
567 | </dl> | |
568 | </dd> | |
569 | ||
570 | <dt>Dynamic array field class</dt> | |
571 | <dd> | |
572 | Its instances (dynamic array fields) contain a variable number array | |
573 | of fields. | |
574 | ||
575 | There are two types of dynamic array field classes: without or | |
576 | with a length field. See | |
577 | \ref api-tir-fc-link "Field classes with links to other field classes" | |
578 | to learn more. | |
579 | ||
580 | @image html darray-link.png "Dynamic array field class with a length field." | |
581 | ||
582 | Create with bt_field_class_array_dynamic_create(). | |
583 | ||
584 | A dynamic array field class with a length field has the | |
585 | specific property: | |
586 | ||
587 | <dl> | |
588 | <dt> | |
589 | \anchor api-tir-fc-darray-prop-len-fp | |
590 | Length field path | |
591 | </dt> | |
592 | <dd> | |
593 | Field path of the linked length field class. | |
594 | ||
595 | Get a dynamic array field class's length field path with | |
596 | bt_field_class_array_dynamic_with_length_field_borrow_length_field_path_const(). | |
597 | </dd> | |
598 | </dl> | |
599 | </dd> | |
600 | </dl> | |
601 | ||
602 | Array field classes have the following common property: | |
603 | ||
604 | <dl> | |
605 | <dt> | |
606 | \anchor api-tir-fc-array-prop-elem-fc | |
607 | Element field class | |
608 | </dt> | |
609 | <dd> | |
610 | Class of the fields contained in the instances (array fields) of the | |
611 | array field class. | |
612 | ||
613 | You cannot change the element field class once the array field class | |
614 | is created. | |
615 | ||
616 | Borrow an array field class's element field class with | |
617 | Use bt_field_class_array_borrow_element_field_class() and | |
618 | bt_field_class_array_borrow_element_field_class_const(). | |
619 | </dd> | |
620 | </dl> | |
621 | ||
622 | <h1>\anchor api-tir-fc-struct Structure field class</h1> | |
623 | ||
624 | @image html fc-struct.png | |
625 | ||
626 | A <strong><em>structure field class</em></strong> is the class | |
627 | of a \bt_struct_field. | |
628 | ||
629 | A structure field contains an ordered list of zero or more members. Each | |
630 | structure field member is the instance of a structure field class | |
631 | member. A structure field class member has a name, a field class, | |
632 | and user attributes. | |
633 | ||
634 | Create a structure field class with bt_field_class_structure_create(). | |
635 | ||
636 | A structure field class has the following specific property: | |
637 | ||
638 | <dl> | |
639 | <dt> | |
640 | \anchor api-tir-fc-struct-prop-members | |
641 | Members | |
642 | </dt> | |
643 | <dd> | |
644 | Ordered list of members (zero or more) of the structure field class. | |
645 | ||
646 | Each member has: | |
647 | ||
648 | - A name, unique amongst all the member names of the same | |
649 | structure field class. | |
650 | - A field class. | |
651 | - User attributes. | |
652 | ||
653 | The instances (structure fields) of a structure field class have | |
654 | members which are instances of the corresponding structure field | |
655 | class members. | |
656 | ||
657 | Append a member to a structure field class with | |
658 | bt_field_class_structure_append_member(). | |
659 | ||
660 | Borrow a member from a structure field class with | |
661 | bt_field_class_structure_borrow_member_by_index(), | |
662 | bt_field_class_structure_borrow_member_by_name(), | |
663 | bt_field_class_structure_borrow_member_by_index_const(), and | |
664 | bt_field_class_structure_borrow_member_by_name_const(). | |
665 | ||
666 | A structure field class member is a | |
667 | \ref api-fund-unique-object "unique object": it | |
668 | belongs to the structure field class which contains it. | |
669 | ||
670 | The type of a structure field class member is | |
671 | #bt_field_class_structure_member. | |
672 | ||
673 | Get a structure field class member's name with | |
674 | bt_field_class_structure_member_get_name(). | |
675 | ||
676 | Borrow a structure field class member's field class with | |
677 | bt_field_class_structure_member_borrow_field_class() and | |
678 | bt_field_class_structure_member_borrow_field_class_const(). | |
679 | ||
680 | Set a structure field class member's user attributes with | |
681 | bt_field_class_structure_member_set_user_attributes(). | |
682 | ||
683 | Borrow a structure field class member's user attributes with | |
684 | bt_field_class_structure_member_borrow_user_attributes() and | |
685 | bt_field_class_structure_member_borrow_user_attributes_const(). | |
686 | </dd> | |
687 | </dl> | |
688 | ||
689 | <h1>\anchor api-tir-fc-opt Option field classes</h1> | |
690 | ||
691 | @image html fc-opt.png | |
692 | ||
693 | <strong><em>Option field classes</em></strong> are classes | |
694 | of \bt_p_opt_field. | |
695 | ||
696 | An option field either does or doesn't contain a field, called its | |
697 | optional field. | |
698 | ||
699 | An option field class is an \em abstract field class: you cannot create | |
700 | one. An option field class either has a selector field (it's linked to a | |
701 | selector field class; see | |
702 | \ref api-tir-fc-link "Field classes with links to other field classes") | |
703 | or none. Therefore, the concrete option field classes are: | |
704 | ||
705 | <dl> | |
706 | <dt>Option field class without a selector field</dt> | |
707 | <dd> | |
708 | Create with bt_field_class_option_without_selector_create(). | |
709 | ||
710 | An option field class without a selector field has no specific | |
711 | properties. | |
712 | </dd> | |
713 | ||
714 | <dt>Option field class with a boolean selector field</dt> | |
715 | <dd> | |
716 | The linked selector field of an option field class's instance | |
717 | (an option field) is a \bt_bool_field. | |
718 | ||
719 | Consequently, the option field class's selector field class is | |
720 | a \bt_bool_fc. | |
721 | ||
722 | @image html opt-link.png "Option field class with a boolean selector field." | |
723 | ||
724 | Create with bt_field_class_option_with_selector_field_bool_create(). | |
725 | ||
726 | An option field class with a boolean selector field has the | |
727 | following specific property: | |
728 | ||
729 | <dl> | |
730 | <dt> | |
731 | \anchor api-tir-fc-opt-prop-sel-rev | |
732 | Selector is reversed? | |
733 | </dt> | |
734 | <dd> | |
735 | Whether or not the linked boolean selector field makes the | |
736 | option field class's instance (an option field) contain a field | |
737 | when it's #BT_TRUE or when it's #BT_FALSE. | |
738 | ||
739 | If this property is #BT_TRUE, then if the linked selector field | |
740 | has the value #BT_FALSE, the option field contains a field. | |
741 | ||
742 | Use | |
743 | bt_field_class_option_with_selector_field_bool_set_selector_is_reversed() | |
744 | and | |
745 | bt_field_class_option_with_selector_field_bool_selector_is_reversed(). | |
746 | </dd> | |
747 | </dl> | |
748 | </dd> | |
749 | ||
750 | <dt>Option field class with an unsigned selector field</dt> | |
751 | <dd> | |
752 | The linked selector field of an option field class's instance | |
753 | (an option field) is an \bt_uint_field. | |
754 | ||
755 | Consequently, the option field class's selector field class is | |
756 | an \bt_uint_fc. | |
757 | ||
758 | Create with | |
759 | bt_field_class_option_with_selector_field_integer_unsigned_create(). | |
760 | ||
761 | Pass an \bt_uint_rs on creation to set which values of the selector | |
762 | field can make the option field contain a field. | |
763 | ||
764 | An option field class with an unsigned integer selector field has | |
765 | the following specific property: | |
766 | ||
767 | <dl> | |
768 | <dt> | |
769 | \anchor api-tir-fc-opt-prop-uint-rs | |
770 | Selector's unsigned integer ranges | |
771 | </dt> | |
772 | <dd> | |
773 | If the linked unsigned integer selector field of an option | |
774 | field class's instance (an option field) has a value which | |
775 | intersects with the selector's unsigned integer ranges, then | |
776 | the option field contains a field. | |
777 | ||
778 | You cannot change the selector's unsigned integer ranges once | |
779 | the option field class is created. | |
780 | ||
781 | Borrow the selector's unsigned integer ranges from an | |
782 | option field class with an unsigned integer selector field with | |
783 | bt_field_class_option_with_selector_field_integer_unsigned_borrow_selector_ranges_const(). | |
784 | </dd> | |
785 | </dl> | |
786 | </dd> | |
787 | ||
788 | <dt>Option field class with a signed selector field</dt> | |
789 | <dd> | |
790 | The linked selector field of an option field class's instance | |
791 | (an option field) is a \bt_sint_field. | |
792 | ||
793 | Consequently, the option field class's selector field class is | |
794 | a \bt_sint_fc. | |
795 | ||
796 | Create with | |
797 | bt_field_class_option_with_selector_field_integer_signed_create(). | |
798 | ||
799 | Pass a \bt_sint_rs on creation to set which values of the selector | |
800 | field can make the option field contain a field. | |
801 | ||
802 | An option field class with a signed integer selector field has | |
803 | the following specific property: | |
804 | ||
805 | <dl> | |
806 | <dt> | |
807 | \anchor api-tir-fc-opt-prop-sint-rs | |
808 | Selector's signed integer ranges | |
809 | </dt> | |
810 | <dd> | |
811 | If the linked signed integer selector field of an option | |
812 | field class's instance (an option field) has a value which | |
813 | intersects with the selector's signed integer ranges, then | |
814 | the option field contains a field. | |
815 | ||
816 | You cannot change the selector's signed integer ranges once | |
817 | the option field class is created. | |
818 | ||
819 | Borrow the selector's signed integer ranges from an | |
820 | option field class with a signed integer selector field with | |
821 | bt_field_class_option_with_selector_field_integer_signed_borrow_selector_ranges_const(). | |
822 | </dd> | |
823 | </dl> | |
824 | </dd> | |
825 | </dl> | |
826 | ||
827 | Option field classes with a selector have the following common | |
828 | property: | |
829 | ||
830 | <dl> | |
831 | <dt> | |
832 | \anchor api-tir-fc-opt-prop-sel-fp | |
833 | Selector field path | |
834 | </dt> | |
835 | <dd> | |
836 | Field path of the linked selector field class. | |
837 | ||
838 | Borrow such an option field class's selector field path with | |
839 | bt_field_class_option_with_selector_field_borrow_selector_field_path_const(). | |
840 | </dd> | |
841 | </dl> | |
842 | ||
843 | Option field classes have the following common property: | |
844 | ||
845 | <dl> | |
846 | <dt> | |
847 | \anchor api-tir-fc-opt-prop-fc | |
848 | Optional field class | |
849 | </dt> | |
850 | <dd> | |
851 | Class of the optional field of an instance (option field) of the | |
852 | option field class. | |
853 | ||
854 | You cannot change the optional field class once the option field | |
855 | class is created. | |
856 | ||
857 | Borrow an option field class's optional field class with | |
858 | Use bt_field_class_option_borrow_field_class() and | |
859 | bt_field_class_option_borrow_field_class_const(). | |
860 | </dd> | |
861 | </dl> | |
862 | ||
863 | <h1>\anchor api-tir-fc-var Variant field classes</h1> | |
864 | ||
865 | @image html fc-var.png | |
866 | ||
867 | <strong><em>Variant field classes</em></strong> are classes | |
868 | of \bt_p_var_field. | |
869 | ||
870 | A variant field contains a field amongst one or more possible fields. | |
871 | ||
872 | Variant field classes contain one or more options. Each variant field | |
873 | class option has a name, a field class, user attributes, and integer | |
874 | ranges, depending on the exact type. | |
875 | ||
876 | A variant field class is an \em abstract field class: you cannot create | |
877 | one. A variant field class either has a selector field (it's linked to a | |
878 | selector field class; see | |
879 | \ref api-tir-fc-link "Field classes with links to other field classes") | |
880 | or none. Therefore, the concrete variant field classes are: | |
881 | ||
882 | <dl> | |
883 | <dt>Variant field class without a selector field</dt> | |
884 | <dd> | |
885 | Create with bt_field_class_variant_create(), passing \c NULL as | |
886 | the selector field class. | |
887 | ||
888 | Append an option to such a variant field class with | |
889 | bt_field_class_variant_without_selector_append_option(). | |
890 | ||
891 | A variant field class without a selector field has no specific | |
892 | properties. | |
893 | </dd> | |
894 | ||
895 | <dt>Variant field class with an unsigned selector field</dt> | |
896 | <dd> | |
897 | The linked selector field of a variant field class's instance | |
898 | (a variant field) is an \bt_uint_field. | |
899 | ||
900 | Consequently, the variant field class's selector field class is | |
901 | an \bt_uint_fc. | |
902 | ||
903 | @image html var-link.png "Variant field class with an unsigned integer selector field." | |
904 | ||
905 | Create with bt_field_class_variant_create(), passing an | |
906 | unsigned integer field class as the selector field class. | |
907 | ||
908 | Append an option to such a variant field class with | |
909 | bt_field_class_variant_with_selector_field_integer_unsigned_append_option(). | |
910 | ||
911 | Pass an \bt_uint_rs when you append an option to set which values of | |
912 | the selector field can make the variant field have a given | |
913 | current option. | |
914 | ||
915 | Borrow such a variant field class's option with | |
916 | bt_field_class_variant_with_selector_field_integer_unsigned_borrow_option_by_index_const() | |
917 | and | |
918 | bt_field_class_variant_with_selector_field_integer_unsigned_borrow_option_by_name_const(). | |
919 | </dd> | |
920 | ||
921 | <dt>Variant field class with a signed selector field</dt> | |
922 | <dd> | |
923 | The linked selector field of a variant field class's instance | |
924 | (a variant field) is a \bt_sint_field. | |
925 | ||
926 | Consequently, the variant field class's selector field class is | |
927 | a \bt_sint_fc. | |
928 | ||
929 | Create with bt_field_class_variant_create(), passing a | |
930 | signed integer field class as the selector field class. | |
931 | ||
932 | Append an option to such a variant field class with | |
933 | bt_field_class_variant_with_selector_field_integer_signed_append_option(). | |
934 | ||
935 | Pass a \bt_sint_rs when you append an option to set which values of | |
936 | the selector field can make the variant field have a given | |
937 | current option. | |
938 | ||
939 | Borrow such a variant field class's option with | |
940 | bt_field_class_variant_with_selector_field_integer_signed_borrow_option_by_index_const() | |
941 | and | |
942 | bt_field_class_variant_with_selector_field_integer_signed_borrow_option_by_name_const(). | |
943 | </dd> | |
944 | </dl> | |
945 | ||
946 | Variant field classes with a selector have the following common | |
947 | property: | |
948 | ||
949 | <dl> | |
950 | <dt> | |
951 | \anchor api-tir-fc-var-prop-sel-fp | |
952 | Selector field path | |
953 | </dt> | |
954 | <dd> | |
955 | Field path of the linked selector field class. | |
956 | ||
957 | Borrow such a variant field class's selector field path with | |
958 | bt_field_class_variant_with_selector_field_borrow_selector_field_path_const(). | |
959 | </dd> | |
960 | </dl> | |
961 | ||
962 | Variant field classes have the following common property: | |
963 | ||
964 | <dl> | |
965 | <dt> | |
966 | \anchor api-tir-fc-var-prop-opts | |
967 | Options | |
968 | </dt> | |
969 | <dd> | |
970 | Options of the variant field class. | |
971 | ||
972 | Each option has: | |
973 | ||
974 | - A name, unique amongst all the option names of the same | |
975 | variant field class. | |
976 | - A field class. | |
977 | - User attributes. | |
978 | ||
979 | If the variant field class is linked to a selector field class, then | |
980 | each option also has an \bt_int_rs. In that case, the ranges of a | |
981 | given option cannot overlap any range of any other option. | |
982 | ||
983 | A variant field class must contain at least one option. | |
984 | ||
985 | Depending on whether or not the variant field class has a selector | |
986 | field class, append an option to a variant field class | |
987 | with bt_field_class_variant_without_selector_append_option(), | |
988 | bt_field_class_variant_with_selector_field_integer_unsigned_append_option(), | |
989 | or | |
990 | bt_field_class_variant_with_selector_field_integer_signed_append_option(). | |
991 | ||
992 | Get the number of options contained in a variant field class | |
993 | with bt_field_class_variant_get_option_count(). | |
994 | ||
995 | A variant field class option is a | |
996 | \ref api-fund-unique-object "unique object": it | |
997 | belongs to the variant field class which contains it. | |
998 | ||
999 | Borrow any variant field class's option with | |
1000 | bt_field_class_variant_borrow_option_by_index(), | |
1001 | bt_field_class_variant_borrow_option_by_name(), | |
1002 | bt_field_class_variant_borrow_option_by_index_const(), and | |
1003 | bt_field_class_variant_borrow_option_by_name_const(). | |
1004 | ||
1005 | Those functions return the common #bt_field_class_variant_option | |
1006 | type. Get the name of a variant field class option with | |
1007 | bt_field_class_variant_option_get_name(). Borrow a variant field | |
1008 | class option's field class with | |
1009 | bt_field_class_variant_option_borrow_field_class() and | |
1010 | bt_field_class_variant_option_borrow_field_class_const(). | |
1011 | ||
1012 | Borrow the option of a variant field classes with a selector field | |
1013 | class with | |
1014 | bt_field_class_variant_with_selector_field_integer_unsigned_borrow_option_by_index_const(), | |
1015 | bt_field_class_variant_with_selector_field_integer_unsigned_borrow_option_by_name_const(), | |
1016 | bt_field_class_variant_with_selector_field_integer_signed_borrow_option_by_index_const(), or | |
1017 | bt_field_class_variant_with_selector_field_integer_signed_borrow_option_by_name_const(), | |
1018 | depending on the selector field class's type. | |
1019 | ||
1020 | Those functions return the | |
1021 | #bt_field_class_variant_with_selector_field_integer_unsigned_option or | |
1022 | #bt_field_class_variant_with_selector_field_integer_signed_option type. | |
1023 | \ref api-fund-c-typing "Upcast" those types to the | |
1024 | #bt_field_class_variant_option type with | |
1025 | bt_field_class_variant_with_selector_field_integer_unsigned_option_as_option_const() | |
1026 | or | |
1027 | bt_field_class_variant_with_selector_field_integer_signed_option_as_option_const(). | |
1028 | ||
1029 | Borrow the option's ranges from a variant field class with a | |
1030 | selector field class with | |
1031 | bt_field_class_variant_with_selector_field_integer_unsigned_option_borrow_ranges_const() | |
1032 | or | |
1033 | bt_field_class_variant_with_selector_field_integer_signed_option_borrow_ranges_const(). | |
1034 | ||
1035 | Set a variant field class option's user attributes with | |
1036 | bt_field_class_variant_option_set_user_attributes(). | |
1037 | ||
1038 | Borrow a variant field class option's user attributes with | |
1039 | bt_field_class_variant_option_borrow_user_attributes() and | |
1040 | bt_field_class_variant_option_borrow_user_attributes_const(). | |
1041 | </dd> | |
1042 | </dl> | |
1043 | ||
1044 | <h1>\anchor api-tir-fc-link Field classes with links to other field classes</h1> | |
1045 | ||
1046 | \bt_cp_darray_fc, \bt_p_opt_fc, and \bt_p_var_fc \em can have links to | |
1047 | other, preceding field classes. | |
1048 | ||
1049 | When a field class A has a link to another field class B, then | |
1050 | an instance (\bt_field) of A has a link to an instance of B. | |
1051 | ||
1052 | This feature exists so that the linked field can contain the value of a | |
1053 | dynamic property of the field. Those properties are: | |
1054 | ||
1055 | <dl> | |
1056 | <dt>\bt_c_darray_field</dt> | |
1057 | <dd> | |
1058 | The linked field, a \bt_uint_field, contains the \b length of the | |
1059 | dynamic array field. | |
1060 | </dd> | |
1061 | ||
1062 | <dt>\bt_c_opt_field</dt> | |
1063 | <dd> | |
1064 | The linked field, either a \bt_bool_field or an \bt_int_field, | |
1065 | indicates whether or not the option field has a field. | |
1066 | </dd> | |
1067 | ||
1068 | <dt>\bt_c_var_field</dt> | |
1069 | <dd> | |
1070 | The linked field, an \bt_int_field, indicates the variant field's | |
1071 | current selected field. | |
1072 | </dd> | |
1073 | </dl> | |
1074 | ||
1075 | Having a linked field class is <em>optional</em>: you always set the | |
1076 | field properties with a dedicated function anyway. For example, even if | |
1077 | a dynamic array field is linked to a preceding length field, you must | |
1078 | still set its length with bt_field_array_dynamic_set_length(). In that | |
1079 | case, the value of the length field must match what you pass to | |
1080 | bt_field_array_dynamic_set_length(). | |
1081 | ||
1082 | The purpose of this feature is to eventually save space when a | |
1083 | \bt_sink_comp writes trace files: if the trace format can convey that | |
1084 | a preceding, existing field represents the length of a dynamic array | |
1085 | field, then the sink component doesn't need to write the dynamic array | |
1086 | field's length twice. This is the case of the | |
1087 | <a href="https://diamon.org/ctf/">Common Trace Format</a>, for | |
1088 | example. | |
1089 | ||
1090 | @image html darray-link.png "A dynamic array field class linked to an unsigned integer field class." | |
1091 | ||
1092 | To link a field class A to a preceding field class B, pass | |
1093 | field class B when you create field class A. For example, pass | |
1094 | the \bt_uint_fc to bt_field_class_array_dynamic_create() to create a | |
1095 | \bt_darray_fc with a length field. | |
1096 | ||
1097 | When you call bt_stream_class_set_packet_context_field_class(), | |
1098 | bt_stream_class_set_event_common_context_field_class(), | |
1099 | bt_event_class_set_specific_context_field_class(), or | |
1100 | bt_event_class_set_payload_field_class() with a field class containing | |
1101 | a field class A with a linked field class B, the path to | |
1102 | B becomes available in A. The functions to borrow this field path are: | |
1103 | ||
1104 | - bt_field_class_array_dynamic_with_length_field_borrow_length_field_path_const() | |
1105 | - bt_field_class_option_with_selector_field_borrow_selector_field_path_const() | |
1106 | - bt_field_class_variant_with_selector_field_borrow_selector_field_path_const() | |
1107 | ||
1108 | A field path indicates how to reach a linked field from a given | |
1109 | root <em>scope</em>. The available scopes are: | |
1110 | ||
1111 | <dl> | |
1112 | <dt>#BT_FIELD_PATH_SCOPE_PACKET_CONTEXT</dt> | |
1113 | <dd> | |
1114 | Packet context field. | |
1115 | ||
1116 | See bt_packet_borrow_context_field_const(). | |
1117 | </dd> | |
1118 | ||
1119 | <dt>#BT_FIELD_PATH_SCOPE_EVENT_COMMON_CONTEXT</dt> | |
1120 | <dd> | |
1121 | Event common context field. | |
1122 | ||
1123 | See bt_event_borrow_common_context_field_const(). | |
1124 | </dd> | |
1125 | ||
1126 | <dt>#BT_FIELD_PATH_SCOPE_EVENT_SPECIFIC_CONTEXT</dt> | |
1127 | <dd> | |
1128 | Event specific context field. | |
1129 | ||
1130 | See bt_event_borrow_specific_context_field_const(). | |
1131 | </dd> | |
1132 | ||
1133 | <dt>#BT_FIELD_PATH_SCOPE_EVENT_PAYLOAD</dt> | |
1134 | <dd> | |
1135 | Event payload field. | |
1136 | ||
1137 | See bt_event_borrow_payload_field_const(). | |
1138 | </dd> | |
1139 | </dl> | |
1140 | ||
1141 | The rules regarding field class A vs. field class B (linked | |
1142 | field class) are: | |
1143 | ||
1144 | - If A is within a packet context field class, B must also be in the | |
1145 | same packet context field class. | |
1146 | ||
1147 | See bt_stream_class_set_packet_context_field_class(). | |
1148 | ||
1149 | - If A is within a event common context field class, B must be in one | |
1150 | of: | |
1151 | ||
1152 | - The same event common context field class. | |
1153 | - The packet context field class of the same \bt_stream_cls. | |
1154 | ||
1155 | See bt_stream_class_set_event_common_context_field_class(). | |
1156 | ||
1157 | - If A is within an event specific context field class, B must be in | |
1158 | one of: | |
1159 | ||
1160 | - The same event specific context field class. | |
1161 | - The event common context field class of the same stream class. | |
1162 | - The packet context field class of the same stream class. | |
1163 | ||
1164 | See bt_event_class_set_specific_context_field_class(). | |
1165 | ||
1166 | - If A is within an event payload field class, B must be in one of: | |
1167 | ||
1168 | - The same event payload field class. | |
1169 | - The event specific context field class of the same \bt_ev_cls. | |
1170 | - The event common context field class of the same stream class. | |
1171 | - The packet context field class of the same stream class. | |
1172 | ||
1173 | See bt_event_class_set_payload_field_class(). | |
1174 | ||
1175 | - If both A and B are in the same scope, then: | |
1176 | ||
1177 | - The lowest common ancestor field class of A and B must be a | |
1178 | \bt_struct_fc. | |
1179 | ||
1180 | - B must precede A. | |
1181 | ||
1182 | Considering that the members of a structure field class are ordered, | |
1183 | then B must be part of a member that's before the member which | |
1184 | contains A in their lowest common ancestor structure field class. | |
1185 | ||
1186 | - The path from the lowest common ancestor structure field class of A | |
1187 | and B to A and to B must only contain structure field classes. | |
1188 | ||
1189 | - If A is in a different scope than B, the path from the root scope of B | |
1190 | to B must only contain structure field classes. | |
1191 | */ | |
1192 | ||
1193 | /*! @{ */ | |
1194 | ||
1195 | /*! | |
1196 | @name Type | |
1197 | @{ | |
1198 | ||
1199 | @typedef struct bt_field_class bt_field_class; | |
1200 | ||
1201 | @brief | |
1202 | Field class. | |
1203 | ||
1204 | @} | |
1205 | */ | |
1206 | ||
1207 | /*! | |
1208 | @name Type query | |
1209 | @{ | |
1210 | */ | |
1211 | ||
1212 | /*! | |
1213 | @brief | |
1214 | Field class type enumerators. | |
1215 | */ | |
1216 | typedef enum bt_field_class_type { | |
1217 | /*! | |
1218 | @brief | |
1219 | \bt_c_bool_fc. | |
1220 | */ | |
1221 | BT_FIELD_CLASS_TYPE_BOOL = 1ULL << 0, | |
1222 | ||
1223 | /*! | |
1224 | @brief | |
1225 | \bt_c_ba_fc. | |
1226 | */ | |
1227 | BT_FIELD_CLASS_TYPE_BIT_ARRAY = 1ULL << 1, | |
1228 | ||
1229 | /*! | |
1230 | @brief | |
1231 | \bt_c_int_fc. | |
1232 | ||
1233 | No field class has this type: use it with | |
1234 | bt_field_class_type_is(). | |
1235 | */ | |
1236 | BT_FIELD_CLASS_TYPE_INTEGER = 1ULL << 2, | |
1237 | ||
1238 | /*! | |
1239 | @brief | |
1240 | \bt_c_uint_fc. | |
1241 | ||
1242 | This type conceptually inherits #BT_FIELD_CLASS_TYPE_INTEGER. | |
1243 | */ | |
1244 | BT_FIELD_CLASS_TYPE_UNSIGNED_INTEGER = (1ULL << 3) | BT_FIELD_CLASS_TYPE_INTEGER, | |
1245 | ||
1246 | /*! | |
1247 | @brief | |
1248 | \bt_c_sint_fc. | |
1249 | ||
1250 | This type conceptually inherits #BT_FIELD_CLASS_TYPE_INTEGER. | |
1251 | */ | |
1252 | BT_FIELD_CLASS_TYPE_SIGNED_INTEGER = (1ULL << 4) | BT_FIELD_CLASS_TYPE_INTEGER, | |
1253 | ||
1254 | /*! | |
1255 | @brief | |
1256 | \bt_c_enum_fc. | |
1257 | ||
1258 | This type conceptually inherits #BT_FIELD_CLASS_TYPE_INTEGER. | |
1259 | ||
1260 | No field class has this type: use it with | |
1261 | bt_field_class_type_is(). | |
1262 | */ | |
1263 | BT_FIELD_CLASS_TYPE_ENUMERATION = 1ULL << 5, | |
1264 | ||
1265 | /*! | |
1266 | @brief | |
1267 | \bt_c_uenum_fc. | |
1268 | ||
1269 | This type conceptually inherits #BT_FIELD_CLASS_TYPE_ENUMERATION | |
1270 | and #BT_FIELD_CLASS_TYPE_UNSIGNED_INTEGER. | |
1271 | */ | |
1272 | BT_FIELD_CLASS_TYPE_UNSIGNED_ENUMERATION = BT_FIELD_CLASS_TYPE_ENUMERATION | BT_FIELD_CLASS_TYPE_UNSIGNED_INTEGER, | |
1273 | ||
1274 | /*! | |
1275 | @brief | |
1276 | \bt_c_senum_fc. | |
1277 | ||
1278 | This type conceptually inherits #BT_FIELD_CLASS_TYPE_ENUMERATION | |
1279 | and #BT_FIELD_CLASS_TYPE_SIGNED_INTEGER. | |
1280 | */ | |
1281 | BT_FIELD_CLASS_TYPE_SIGNED_ENUMERATION = BT_FIELD_CLASS_TYPE_ENUMERATION | BT_FIELD_CLASS_TYPE_SIGNED_INTEGER, | |
1282 | ||
1283 | /*! | |
1284 | @brief | |
1285 | \bt_c_real_fc. | |
1286 | ||
1287 | No field class has this type: use it with | |
1288 | bt_field_class_type_is(). | |
1289 | */ | |
1290 | BT_FIELD_CLASS_TYPE_REAL = 1ULL << 6, | |
1291 | ||
1292 | /*! | |
1293 | @brief | |
1294 | Single-precision \bt_real_fc. | |
1295 | ||
1296 | This type conceptually inherits #BT_FIELD_CLASS_TYPE_REAL. | |
1297 | */ | |
1298 | BT_FIELD_CLASS_TYPE_SINGLE_PRECISION_REAL = (1ULL << 7) | BT_FIELD_CLASS_TYPE_REAL, | |
1299 | ||
1300 | /*! | |
1301 | @brief | |
1302 | Double-precision \bt_real_fc. | |
1303 | ||
1304 | This type conceptually inherits #BT_FIELD_CLASS_TYPE_REAL. | |
1305 | */ | |
1306 | BT_FIELD_CLASS_TYPE_DOUBLE_PRECISION_REAL = (1ULL << 8) | BT_FIELD_CLASS_TYPE_REAL, | |
1307 | ||
1308 | /*! | |
1309 | @brief | |
1310 | \bt_c_string_fc.. | |
1311 | */ | |
1312 | BT_FIELD_CLASS_TYPE_STRING = 1ULL << 9, | |
1313 | ||
1314 | /*! | |
1315 | @brief | |
1316 | \bt_c_struct_fc. | |
1317 | */ | |
1318 | BT_FIELD_CLASS_TYPE_STRUCTURE = 1ULL << 10, | |
1319 | ||
1320 | /*! | |
1321 | @brief | |
1322 | \bt_c_array_fc. | |
1323 | ||
1324 | No field class has this type: use it with | |
1325 | bt_field_class_type_is(). | |
1326 | */ | |
1327 | BT_FIELD_CLASS_TYPE_ARRAY = 1ULL << 11, | |
1328 | ||
1329 | /*! | |
1330 | @brief | |
1331 | \bt_c_sarray_fc. | |
1332 | ||
1333 | This type conceptually inherits #BT_FIELD_CLASS_TYPE_ARRAY. | |
1334 | */ | |
1335 | BT_FIELD_CLASS_TYPE_STATIC_ARRAY = (1ULL << 12) | BT_FIELD_CLASS_TYPE_ARRAY, | |
1336 | ||
1337 | /*! | |
1338 | @brief | |
1339 | \bt_c_darray_fc. | |
1340 | ||
1341 | This type conceptually inherits #BT_FIELD_CLASS_TYPE_ARRAY. | |
1342 | ||
1343 | No field class has this type: use it with | |
1344 | bt_field_class_type_is(). | |
1345 | */ | |
1346 | BT_FIELD_CLASS_TYPE_DYNAMIC_ARRAY = (1ULL << 13) | BT_FIELD_CLASS_TYPE_ARRAY, | |
1347 | ||
1348 | /*! | |
1349 | @brief | |
1350 | \bt_c_darray_fc (without a length field). | |
1351 | ||
1352 | This type conceptually inherits | |
1353 | #BT_FIELD_CLASS_TYPE_DYNAMIC_ARRAY. | |
1354 | */ | |
1355 | BT_FIELD_CLASS_TYPE_DYNAMIC_ARRAY_WITHOUT_LENGTH_FIELD = (1ULL << 14) | BT_FIELD_CLASS_TYPE_DYNAMIC_ARRAY, | |
1356 | ||
1357 | /*! | |
1358 | @brief | |
1359 | \bt_c_darray_fc (with a length field). | |
1360 | ||
1361 | This type conceptually inherits | |
1362 | #BT_FIELD_CLASS_TYPE_DYNAMIC_ARRAY. | |
1363 | */ | |
1364 | BT_FIELD_CLASS_TYPE_DYNAMIC_ARRAY_WITH_LENGTH_FIELD = (1ULL << 15) | BT_FIELD_CLASS_TYPE_DYNAMIC_ARRAY, | |
1365 | ||
1366 | /*! | |
1367 | @brief | |
1368 | \bt_c_opt_fc. | |
1369 | ||
1370 | No field class has this type: use it with | |
1371 | bt_field_class_type_is(). | |
1372 | */ | |
1373 | BT_FIELD_CLASS_TYPE_OPTION = 1ULL << 16, | |
1374 | ||
1375 | /*! | |
1376 | @brief | |
1377 | \bt_c_opt_fc (without a selector field). | |
1378 | */ | |
1379 | BT_FIELD_CLASS_TYPE_OPTION_WITHOUT_SELECTOR_FIELD = (1ULL << 17) | BT_FIELD_CLASS_TYPE_OPTION, | |
1380 | ||
1381 | /*! | |
1382 | @brief | |
1383 | \bt_c_opt_fc (with a selector field). | |
1384 | ||
1385 | This type conceptually inherits #BT_FIELD_CLASS_TYPE_OPTION. | |
1386 | ||
1387 | No field class has this type: use it with | |
1388 | bt_field_class_type_is(). | |
1389 | */ | |
1390 | BT_FIELD_CLASS_TYPE_OPTION_WITH_SELECTOR_FIELD = (1ULL << 18) | BT_FIELD_CLASS_TYPE_OPTION, | |
1391 | ||
1392 | /*! | |
1393 | @brief | |
1394 | \bt_c_opt_fc (with a boolean selector field). | |
1395 | ||
1396 | This type conceptually inherits | |
1397 | #BT_FIELD_CLASS_TYPE_OPTION_WITH_SELECTOR_FIELD. | |
1398 | */ | |
1399 | BT_FIELD_CLASS_TYPE_OPTION_WITH_BOOL_SELECTOR_FIELD = (1ULL << 19) | BT_FIELD_CLASS_TYPE_OPTION_WITH_SELECTOR_FIELD, | |
1400 | ||
1401 | /*! | |
1402 | @brief | |
1403 | \bt_c_opt_fc (with an integer selector field). | |
1404 | ||
1405 | This type conceptually inherits | |
1406 | #BT_FIELD_CLASS_TYPE_OPTION_WITH_SELECTOR_FIELD. | |
1407 | ||
1408 | No field class has this type: use it with | |
1409 | bt_field_class_type_is(). | |
1410 | */ | |
1411 | BT_FIELD_CLASS_TYPE_OPTION_WITH_INTEGER_SELECTOR_FIELD = (1ULL << 20) | BT_FIELD_CLASS_TYPE_OPTION_WITH_SELECTOR_FIELD, | |
1412 | ||
1413 | /*! | |
1414 | @brief | |
1415 | \bt_c_opt_fc (with an unsigned integer selector field). | |
1416 | ||
1417 | This type conceptually inherits | |
1418 | #BT_FIELD_CLASS_TYPE_OPTION_WITH_INTEGER_SELECTOR_FIELD. | |
1419 | */ | |
1420 | BT_FIELD_CLASS_TYPE_OPTION_WITH_UNSIGNED_INTEGER_SELECTOR_FIELD = (1ULL << 21) | BT_FIELD_CLASS_TYPE_OPTION_WITH_INTEGER_SELECTOR_FIELD, | |
1421 | ||
1422 | /*! | |
1423 | @brief | |
1424 | \bt_c_opt_fc (with a signed integer selector field). | |
1425 | ||
1426 | This type conceptually inherits | |
1427 | #BT_FIELD_CLASS_TYPE_OPTION_WITH_INTEGER_SELECTOR_FIELD. | |
1428 | */ | |
1429 | BT_FIELD_CLASS_TYPE_OPTION_WITH_SIGNED_INTEGER_SELECTOR_FIELD = (1ULL << 22) | BT_FIELD_CLASS_TYPE_OPTION_WITH_INTEGER_SELECTOR_FIELD, | |
1430 | ||
1431 | /*! | |
1432 | @brief | |
1433 | \bt_c_var_fc. | |
1434 | ||
1435 | No field class has this type: use it with | |
1436 | bt_field_class_type_is(). | |
1437 | */ | |
1438 | BT_FIELD_CLASS_TYPE_VARIANT = 1ULL << 23, | |
1439 | ||
1440 | /*! | |
1441 | @brief | |
1442 | \bt_c_var_fc (without a selector field). | |
1443 | */ | |
1444 | BT_FIELD_CLASS_TYPE_VARIANT_WITHOUT_SELECTOR_FIELD = (1ULL << 24) | BT_FIELD_CLASS_TYPE_VARIANT, | |
1445 | ||
1446 | /*! | |
1447 | @brief | |
1448 | \bt_c_var_fc (with a selector field). | |
1449 | ||
1450 | This type conceptually inherits | |
1451 | #BT_FIELD_CLASS_TYPE_VARIANT. | |
1452 | ||
1453 | No field class has this type: use it with | |
1454 | bt_field_class_type_is(). | |
1455 | */ | |
1456 | BT_FIELD_CLASS_TYPE_VARIANT_WITH_SELECTOR_FIELD = (1ULL << 25) | BT_FIELD_CLASS_TYPE_VARIANT, | |
1457 | ||
1458 | /*! | |
1459 | @brief | |
1460 | \bt_c_var_fc (with an integer selector field). | |
1461 | ||
1462 | This type conceptually inherits | |
1463 | #BT_FIELD_CLASS_TYPE_VARIANT_WITH_SELECTOR_FIELD. | |
1464 | ||
1465 | No field class has this type: use it with | |
1466 | bt_field_class_type_is(). | |
1467 | */ | |
1468 | BT_FIELD_CLASS_TYPE_VARIANT_WITH_INTEGER_SELECTOR_FIELD = (1ULL << 26) | BT_FIELD_CLASS_TYPE_VARIANT_WITH_SELECTOR_FIELD, | |
1469 | ||
1470 | /*! | |
1471 | @brief | |
1472 | \bt_c_opt_fc (with an unsigned integer selector field). | |
1473 | ||
1474 | This type conceptually inherits | |
1475 | #BT_FIELD_CLASS_TYPE_VARIANT_WITH_INTEGER_SELECTOR_FIELD. | |
1476 | */ | |
1477 | BT_FIELD_CLASS_TYPE_VARIANT_WITH_UNSIGNED_INTEGER_SELECTOR_FIELD = (1ULL << 27) | BT_FIELD_CLASS_TYPE_VARIANT_WITH_INTEGER_SELECTOR_FIELD, | |
1478 | ||
1479 | /*! | |
1480 | @brief | |
1481 | \bt_c_opt_fc (with a signed integer selector field). | |
1482 | ||
1483 | This type conceptually inherits | |
1484 | #BT_FIELD_CLASS_TYPE_VARIANT_WITH_INTEGER_SELECTOR_FIELD. | |
1485 | */ | |
1486 | BT_FIELD_CLASS_TYPE_VARIANT_WITH_SIGNED_INTEGER_SELECTOR_FIELD = (1ULL << 28) | BT_FIELD_CLASS_TYPE_VARIANT_WITH_INTEGER_SELECTOR_FIELD, | |
1487 | ||
1488 | /* | |
1489 | * Make sure the enumeration type is a 64-bit integer in case | |
1490 | * the project needs field class types in the future. | |
1491 | * | |
1492 | * This is not part of the API. | |
1493 | */ | |
1494 | __BT_FIELD_CLASS_TYPE_BIG_VALUE = 1ULL << 62, | |
1495 | } bt_field_class_type; | |
1496 | ||
1497 | /*! | |
1498 | @brief | |
1499 | Returns the type enumerator of the field class \bt_p{field_class}. | |
1500 | ||
1501 | @param[in] field_class | |
1502 | Field class of which to get the type enumerator | |
1503 | ||
1504 | @returns | |
1505 | Type enumerator of \bt_p{field_class}. | |
1506 | ||
1507 | @bt_pre_not_null{field_class} | |
1508 | ||
1509 | @sa bt_field_class_type_is() — | |
1510 | Returns whether or not the type of a field class conceptually is a | |
1511 | given type. | |
1512 | */ | |
1513 | extern bt_field_class_type bt_field_class_get_type( | |
1514 | const bt_field_class *field_class); | |
1515 | ||
1516 | /*! | |
1517 | @brief | |
1518 | Returns whether or not the field class type \bt_p{type} conceptually | |
1519 | \em is the field class type \bt_p{other_type}. | |
1520 | ||
1521 | For example, an \bt_uint_fc conceptually \em is an integer field class, | |
1522 | so | |
1523 | ||
1524 | @code | |
1525 | bt_field_class_type_is(BT_FIELD_CLASS_TYPE_UNSIGNED_INTEGER, BT_FIELD_CLASS_TYPE_INTEGER) | |
1526 | @endcode | |
1527 | ||
1528 | returns #BT_TRUE. | |
1529 | ||
1530 | @param[in] type | |
1531 | Field class type to check against \bt_p{other_type}. | |
1532 | @param[in] other_type | |
1533 | Field class type against which to check \bt_p{type}. | |
1534 | ||
1535 | @returns | |
1536 | #BT_TRUE if \bt_p{type} conceptually \em is \bt_p{other_type}. | |
1537 | ||
1538 | @sa bt_field_class_get_type() — | |
1539 | Returns the type enumerator of a field class. | |
1540 | */ | |
1541 | static inline | |
1542 | bt_bool bt_field_class_type_is(const bt_field_class_type type, | |
1543 | const bt_field_class_type other_type) | |
1544 | { | |
1545 | return (type & other_type) == other_type; | |
1546 | } | |
1547 | ||
1548 | /*! @} */ | |
1549 | ||
1550 | /*! | |
1551 | @name Common property | |
1552 | @{ | |
1553 | */ | |
1554 | ||
1555 | /*! | |
1556 | @brief | |
1557 | Sets the user attributes of the field class \bt_p{field_class} to | |
1558 | \bt_p{user_attributes}. | |
1559 | ||
1560 | See the \ref api-tir-fc-prop-user-attrs "user attributes" property. | |
1561 | ||
1562 | @note | |
1563 | When you create a field class with one of the | |
1564 | <code>bt_field_class_*_create()</code> functions, the field class's | |
1565 | initial user attributes is an empty \bt_map_val. Therefore you can | |
1566 | borrow it with bt_field_class_borrow_user_attributes() and fill it | |
1567 | directly instead of setting a new one with this function. | |
1568 | ||
1569 | @param[in] field_class | |
1570 | Field class of which to set the user attributes to | |
1571 | \bt_p{user_attributes}. | |
1572 | @param[in] user_attributes | |
1573 | New user attributes of \bt_p{field_class}. | |
1574 | ||
1575 | @bt_pre_not_null{field_class} | |
1576 | @bt_pre_hot{field_class} | |
1577 | @bt_pre_not_null{user_attributes} | |
1578 | @bt_pre_is_map_val{user_attributes} | |
1579 | ||
1580 | @sa bt_field_class_borrow_user_attributes() — | |
1581 | Borrows the user attributes of a field class. | |
1582 | */ | |
c6962c96 PP |
1583 | extern void bt_field_class_set_user_attributes( |
1584 | bt_field_class *field_class, const bt_value *user_attributes); | |
1585 | ||
43c59509 PP |
1586 | /*! |
1587 | @brief | |
1588 | Borrows the user attributes of the field class \bt_p{field_class}. | |
1589 | ||
1590 | See the \ref api-tir-fc-prop-user-attrs "user attributes" property. | |
1591 | ||
1592 | @note | |
1593 | When you create a field class with one of the | |
1594 | <code>bt_field_class_*_create()</code> functions, the field class's | |
1595 | initial user attributes is an empty \bt_map_val. | |
1596 | ||
1597 | @param[in] field_class | |
1598 | Field class from which to borrow the user attributes. | |
1599 | ||
1600 | @returns | |
1601 | User attributes of \bt_p{field_class} (a \bt_map_val). | |
1602 | ||
1603 | @bt_pre_not_null{field_class} | |
1604 | ||
1605 | @sa bt_field_class_set_user_attributes() — | |
1606 | Sets the user attributes of a field class. | |
1607 | @sa bt_field_class_borrow_user_attributes_const() — | |
1608 | \c const version of this function. | |
1609 | */ | |
1610 | extern bt_value *bt_field_class_borrow_user_attributes( | |
1611 | bt_field_class *field_class); | |
1612 | ||
1613 | /*! | |
1614 | @brief | |
1615 | Borrows the user attributes of the field class \bt_p{field_class} | |
1616 | (\c const version). | |
1617 | ||
1618 | See bt_field_class_borrow_user_attributes(). | |
1619 | */ | |
1620 | extern const bt_value *bt_field_class_borrow_user_attributes_const( | |
1621 | const bt_field_class *field_class); | |
1622 | ||
1623 | /*! @} */ | |
1624 | ||
1625 | /*! | |
1626 | @name Boolean field class | |
1627 | @{ | |
1628 | */ | |
1629 | ||
1630 | /*! | |
1631 | @brief | |
1632 | Creates a \bt_bool_fc from the trace class \bt_p{trace_class}. | |
1633 | ||
1634 | On success, the returned boolean field class has the following | |
1635 | property value: | |
1636 | ||
1637 | <table> | |
1638 | <tr> | |
1639 | <th>Property | |
1640 | <th>Value | |
1641 | <tr> | |
1642 | <td>\ref api-tir-fc-prop-user-attrs "User attributes" | |
1643 | <td>Empty \bt_map_val | |
1644 | </table> | |
1645 | ||
1646 | @param[in] trace_class | |
1647 | Trace class from which to create a boolean field class. | |
1648 | ||
1649 | @returns | |
1650 | New boolean field class reference, or \c NULL on memory error. | |
1651 | ||
1652 | @bt_pre_not_null{trace_class} | |
1653 | */ | |
1654 | extern bt_field_class *bt_field_class_bool_create( | |
1655 | bt_trace_class *trace_class); | |
1656 | ||
1657 | /*! | |
1658 | @} | |
1659 | */ | |
1660 | ||
1661 | /*! | |
1662 | @name Bit array field class | |
1663 | @{ | |
1664 | */ | |
1665 | ||
1666 | /*! | |
1667 | @brief | |
1668 | Creates a \bt_ba_fc with the length \bt_p{length} from the trace | |
1669 | class \bt_p{trace_class}. | |
1670 | ||
1671 | On success, the returned bit array field class has the following | |
1672 | property values: | |
1673 | ||
1674 | <table> | |
1675 | <tr> | |
1676 | <th>Property | |
1677 | <th>Value | |
1678 | <tr> | |
1679 | <td>\ref api-tir-fc-ba-prop-len "Length" | |
1680 | <td>\bt_p{length} | |
1681 | <tr> | |
1682 | <td>\ref api-tir-fc-prop-user-attrs "User attributes" | |
1683 | <td>Empty \bt_map_val | |
1684 | </table> | |
1685 | ||
1686 | @param[in] trace_class | |
1687 | Trace class from which to create a bit array field class. | |
1688 | @param[in] length | |
1689 | Length (number of bits) of the instances of the bit array field | |
1690 | class to create. | |
1691 | ||
1692 | @returns | |
1693 | New bit array field class reference, or \c NULL on memory error. | |
1694 | ||
1695 | @bt_pre_not_null{trace_class} | |
1696 | @pre | |
1697 | 0 < \bt_p{length} ≤ 64. | |
1698 | */ | |
1699 | extern bt_field_class *bt_field_class_bit_array_create( | |
1700 | bt_trace_class *trace_class, uint64_t length); | |
1701 | ||
1702 | /*! | |
1703 | @brief | |
1704 | Returns the length of the \bt_ba_fc \bt_p{field_class}. | |
1705 | ||
1706 | See the \ref api-tir-fc-ba-prop-len "length" property. | |
1707 | ||
1708 | @param[in] field_class | |
1709 | Bit array field class of which to get the length. | |
1710 | ||
1711 | @returns | |
1712 | Length of \bt_p{field_class}. | |
1713 | ||
1714 | @bt_pre_not_null{field_class} | |
1715 | @bt_pre_is_ba_fc{field_class} | |
1716 | */ | |
1717 | extern uint64_t bt_field_class_bit_array_get_length( | |
1718 | const bt_field_class *field_class); | |
1719 | ||
1720 | /*! | |
1721 | @} | |
1722 | */ | |
1723 | ||
1724 | /*! | |
1725 | @name Integer field class | |
1726 | @{ | |
1727 | */ | |
1728 | ||
1729 | /*! | |
1730 | @brief | |
1731 | Sets the field value range of the \bt_int_fc \bt_p{field_class} | |
1732 | to \bt_p{n}. | |
1733 | ||
1734 | See the \ref api-tir-fc-int-prop-size "field value range" property. | |
1735 | ||
1736 | @param[in] field_class | |
1737 | Integer field class of which to set the field value range to | |
1738 | \bt_p{n}. | |
1739 | @param[in] n | |
1740 | @parblock | |
1741 | \em N in: | |
1742 | ||
1743 | <dl> | |
1744 | <dt>Unsigned integer field class</dt> | |
1745 | <dd>[0, 2<sup><em>N</em></sup> - 1]</dd> | |
1746 | ||
1747 | <dt>Signed integer field class</dt> | |
1748 | <dd>[-2<sup><em>N</em></sup>, 2<sup><em>N</em></sup> - 1]</dd> | |
1749 | </dl> | |
1750 | @endparblock | |
1751 | ||
1752 | @bt_pre_not_null{field_class} | |
1753 | @bt_pre_hot{field_class} | |
1754 | @bt_pre_is_int_fc{field_class} | |
1755 | @pre | |
1756 | \bt_p{n} ⩽ 64. | |
1757 | ||
1758 | @sa bt_field_class_integer_get_field_value_range() — | |
1759 | Returns the field value range of an integer field class. | |
1760 | */ | |
1761 | extern void bt_field_class_integer_set_field_value_range( | |
1762 | bt_field_class *field_class, uint64_t n); | |
1763 | ||
1764 | /*! | |
1765 | @brief | |
1766 | Returns the field value range of the \bt_int_fc \bt_p{field_class}. | |
1767 | ||
1768 | See the \ref api-tir-fc-int-prop-size "field value range" property. | |
1769 | ||
1770 | @param[in] field_class | |
1771 | Integer field class of which to get the field value range. | |
1772 | ||
1773 | @returns | |
1774 | @parblock | |
1775 | Field value range of \bt_p{field_class}, that is, \em N in: | |
1776 | ||
1777 | <dl> | |
1778 | <dt>Unsigned integer field class</dt> | |
1779 | <dd>[0, 2<sup><em>N</em></sup> - 1]</dd> | |
1780 | ||
1781 | <dt>Signed integer field class</dt> | |
1782 | <dd>[-2<sup><em>N</em></sup>, 2<sup><em>N</em></sup> - 1]</dd> | |
1783 | </dl> | |
1784 | @endparblock | |
1785 | ||
1786 | @bt_pre_not_null{field_class} | |
1787 | @bt_pre_is_int_fc{field_class} | |
1788 | ||
1789 | @sa bt_field_class_integer_set_field_value_range() — | |
1790 | Sets the field value range of an integer field class. | |
1791 | */ | |
1792 | extern uint64_t bt_field_class_integer_get_field_value_range( | |
1793 | const bt_field_class *field_class); | |
1794 | ||
1795 | /*! | |
1796 | @brief | |
1797 | Integer field class preferred display bases. | |
1798 | */ | |
1799 | typedef enum bt_field_class_integer_preferred_display_base { | |
1800 | /*! | |
1801 | @brief | |
1802 | Binary (2). | |
1803 | */ | |
1804 | BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_BINARY = 2, | |
1805 | ||
1806 | /*! | |
1807 | @brief | |
1808 | Octal (8). | |
1809 | */ | |
1810 | BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_OCTAL = 8, | |
1811 | ||
1812 | /*! | |
1813 | @brief | |
1814 | Decimal (10). | |
1815 | */ | |
1816 | BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_DECIMAL = 10, | |
1817 | ||
1818 | /*! | |
1819 | @brief | |
1820 | Hexadecimal (16). | |
1821 | */ | |
1822 | BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_HEXADECIMAL = 16, | |
1823 | } bt_field_class_integer_preferred_display_base; | |
1824 | ||
1825 | /*! | |
1826 | @brief | |
1827 | Sets the preferred display base of the \bt_int_fc \bt_p{field_class} | |
1828 | to \bt_p{preferred_display_base}. | |
1829 | ||
1830 | See the \ref api-tir-fc-int-prop-base "preferred display base" property. | |
1831 | ||
1832 | @param[in] field_class | |
1833 | Integer field class of which to set the preferred display base to | |
1834 | \bt_p{preferred_display_base}. | |
1835 | @param[in] preferred_display_base | |
1836 | New preferred display base of \bt_p{field_class}. | |
1837 | ||
1838 | @bt_pre_not_null{field_class} | |
1839 | @bt_pre_hot{field_class} | |
1840 | @bt_pre_is_int_fc{field_class} | |
1841 | ||
1842 | @sa bt_field_class_integer_get_preferred_display_base() — | |
1843 | Returns the preferred display base of an integer field class. | |
1844 | */ | |
1845 | extern void bt_field_class_integer_set_preferred_display_base( | |
1846 | bt_field_class *field_class, | |
1847 | bt_field_class_integer_preferred_display_base preferred_display_base); | |
1848 | ||
1849 | /*! | |
1850 | @brief | |
1851 | Returns the preferred display base of the \bt_int_fc | |
1852 | \bt_p{field_class}. | |
1853 | ||
1854 | See the \ref api-tir-fc-int-prop-base "preferred display base" property. | |
1855 | ||
1856 | @param[in] field_class | |
1857 | Integer field class of which to get the preferred display base. | |
1858 | ||
1859 | @retval #BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_BINARY | |
1860 | 2 (binary) | |
1861 | @retval #BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_OCTAL | |
1862 | 8 (octal) | |
1863 | @retval #BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_DECIMAL | |
1864 | 10 (decimal) | |
1865 | @retval #BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_HEXADECIMAL | |
1866 | 16 (hexadecimal) | |
1867 | ||
1868 | @bt_pre_not_null{field_class} | |
1869 | @bt_pre_is_int_fc{field_class} | |
1870 | ||
1871 | @sa bt_field_class_integer_set_preferred_display_base() — | |
1872 | Sets the preferred display base of an integer field class. | |
1873 | */ | |
1874 | extern bt_field_class_integer_preferred_display_base | |
1875 | bt_field_class_integer_get_preferred_display_base( | |
1876 | const bt_field_class *field_class); | |
1877 | ||
1878 | /*! @} */ | |
1879 | ||
1880 | /*! | |
1881 | @name Unsigned integer field class | |
1882 | @{ | |
1883 | */ | |
1884 | ||
1885 | /*! | |
1886 | @brief | |
1887 | Creates an \bt_uint_fc from the trace class \bt_p{trace_class}. | |
1888 | ||
1889 | On success, the returned unsigned integer field class has the following | |
1890 | property values: | |
1891 | ||
1892 | <table> | |
1893 | <tr> | |
1894 | <th>Property | |
1895 | <th>Value | |
1896 | <tr> | |
1897 | <td>\ref api-tir-fc-int-prop-size "Field value range" | |
1898 | <td>[0, 2<sup>64</sup> - 1] | |
1899 | <tr> | |
1900 | <td>\ref api-tir-fc-int-prop-base "Preferred display base" | |
1901 | <td>#BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_DECIMAL | |
1902 | <tr> | |
1903 | <td>\ref api-tir-fc-prop-user-attrs "User attributes" | |
1904 | <td>Empty \bt_map_val | |
1905 | </table> | |
1906 | ||
1907 | @param[in] trace_class | |
1908 | Trace class from which to create an unsigned integer field class. | |
1909 | ||
1910 | @returns | |
1911 | New unsigned integer field class reference, or \c NULL on memory error. | |
1912 | ||
1913 | @bt_pre_not_null{trace_class} | |
1914 | */ | |
1915 | extern bt_field_class *bt_field_class_integer_unsigned_create( | |
1916 | bt_trace_class *trace_class); | |
1917 | ||
1918 | /*! @} */ | |
1919 | ||
1920 | /*! | |
1921 | @name Signed integer field class | |
1922 | @{ | |
1923 | */ | |
1924 | ||
1925 | /*! | |
1926 | @brief | |
1927 | Creates an \bt_sint_fc from the trace class \bt_p{trace_class}. | |
1928 | ||
1929 | On success, the returned signed integer field class has the following | |
1930 | property values: | |
1931 | ||
1932 | <table> | |
1933 | <tr> | |
1934 | <th>Property | |
1935 | <th>Value | |
1936 | <tr> | |
1937 | <td>\ref api-tir-fc-int-prop-size "Field value range" | |
1938 | <td>[-2<sup>63</sup>, 2<sup>63</sup> - 1] | |
1939 | <tr> | |
1940 | <td>\ref api-tir-fc-int-prop-base "Preferred display base" | |
1941 | <td>#BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_DECIMAL | |
1942 | <tr> | |
1943 | <td>\ref api-tir-fc-prop-user-attrs "User attributes" | |
1944 | <td>Empty \bt_map_val | |
1945 | </table> | |
1946 | ||
1947 | @param[in] trace_class | |
1948 | Trace class from which to create a signed integer field class. | |
1949 | ||
1950 | @returns | |
1951 | New signed integer field class reference, or \c NULL on memory error. | |
1952 | ||
1953 | @bt_pre_not_null{trace_class} | |
1954 | */ | |
1955 | extern bt_field_class *bt_field_class_integer_signed_create( | |
1956 | bt_trace_class *trace_class); | |
1957 | ||
1958 | /*! @} */ | |
1959 | ||
1960 | /*! | |
1961 | @name Single-precision real field class | |
1962 | @{ | |
1963 | */ | |
1964 | ||
1965 | /*! | |
1966 | @brief | |
1967 | Creates a single-precision \bt_real_fc from the trace class | |
1968 | \bt_p{trace_class}. | |
1969 | ||
1970 | On success, the returned single-precision real field class has the | |
1971 | following property value: | |
1972 | ||
1973 | <table> | |
1974 | <tr> | |
1975 | <th>Property | |
1976 | <th>Value | |
1977 | <tr> | |
1978 | <td>\ref api-tir-fc-prop-user-attrs "User attributes" | |
1979 | <td>Empty \bt_map_val | |
1980 | </table> | |
1981 | ||
1982 | @param[in] trace_class | |
1983 | Trace class from which to create a single-preicision real | |
1984 | field class. | |
1985 | ||
1986 | @returns | |
1987 | New single-precision real field class reference, or \c NULL on | |
1988 | memory error. | |
1989 | ||
1990 | @bt_pre_not_null{trace_class} | |
1991 | */ | |
1992 | extern bt_field_class *bt_field_class_real_single_precision_create( | |
1993 | bt_trace_class *trace_class); | |
1994 | ||
1995 | /*! @} */ | |
1996 | ||
1997 | /*! | |
1998 | @name Double-precision real field class | |
1999 | @{ | |
2000 | */ | |
2001 | ||
2002 | /*! | |
2003 | @brief | |
2004 | Creates a double-precision \bt_real_fc from the trace class | |
2005 | \bt_p{trace_class}. | |
2006 | ||
2007 | On success, the returned double-precision real field class has the | |
2008 | following property value: | |
2009 | ||
2010 | <table> | |
2011 | <tr> | |
2012 | <th>Property | |
2013 | <th>Value | |
2014 | <tr> | |
2015 | <td>\ref api-tir-fc-prop-user-attrs "User attributes" | |
2016 | <td>Empty \bt_map_val | |
2017 | </table> | |
2018 | ||
2019 | @param[in] trace_class | |
2020 | Trace class from which to create a double-preicision real | |
2021 | field class. | |
2022 | ||
2023 | @returns | |
2024 | New double-precision real field class reference, or \c NULL on | |
2025 | memory error. | |
2026 | ||
2027 | @bt_pre_not_null{trace_class} | |
2028 | */ | |
2029 | extern bt_field_class *bt_field_class_real_double_precision_create( | |
2030 | bt_trace_class *trace_class); | |
2031 | ||
2032 | /*! @} */ | |
2033 | ||
2034 | /*! | |
2035 | @name Enumeration field class | |
2036 | @{ | |
2037 | */ | |
2038 | ||
2039 | /*! | |
2040 | @brief | |
2041 | Array of \c const \bt_enum_fc labels. | |
2042 | ||
2043 | Returned by bt_field_class_enumeration_unsigned_get_mapping_labels_for_value() | |
2044 | and bt_field_class_enumeration_signed_get_mapping_labels_for_value(). | |
2045 | */ | |
2046 | typedef char const * const *bt_field_class_enumeration_mapping_label_array; | |
2047 | ||
2048 | /*! | |
2049 | @brief | |
2050 | Status codes for | |
2051 | bt_field_class_enumeration_unsigned_get_mapping_labels_for_value() | |
2052 | and | |
2053 | bt_field_class_enumeration_signed_get_mapping_labels_for_value(). | |
2054 | */ | |
2055 | typedef enum bt_field_class_enumeration_get_mapping_labels_for_value_status { | |
2056 | /*! | |
2057 | @brief | |
2058 | Success. | |
2059 | */ | |
2060 | BT_FIELD_CLASS_ENUMERATION_GET_MAPPING_LABELS_BY_VALUE_STATUS_OK = __BT_FUNC_STATUS_OK, | |
2061 | ||
2062 | /*! | |
2063 | @brief | |
2064 | Out of memory. | |
2065 | */ | |
2066 | BT_FIELD_CLASS_ENUMERATION_GET_MAPPING_LABELS_BY_VALUE_STATUS_MEMORY_ERROR = __BT_FUNC_STATUS_MEMORY_ERROR, | |
2067 | } bt_field_class_enumeration_get_mapping_labels_for_value_status; | |
2068 | ||
2069 | /*! | |
2070 | @brief | |
2071 | Status codes for bt_field_class_enumeration_unsigned_add_mapping() | |
2072 | and bt_field_class_enumeration_signed_add_mapping(). | |
2073 | */ | |
2074 | typedef enum bt_field_class_enumeration_add_mapping_status { | |
2075 | /*! | |
2076 | @brief | |
2077 | Success. | |
2078 | */ | |
2079 | BT_FIELD_CLASS_ENUMERATION_ADD_MAPPING_STATUS_OK = __BT_FUNC_STATUS_OK, | |
2080 | ||
2081 | /*! | |
2082 | @brief | |
2083 | Out of memory. | |
2084 | */ | |
2085 | BT_FIELD_CLASS_ENUMERATION_ADD_MAPPING_STATUS_MEMORY_ERROR = __BT_FUNC_STATUS_MEMORY_ERROR, | |
2086 | } bt_field_class_enumeration_add_mapping_status; | |
2087 | ||
2088 | /*! @} */ | |
2089 | ||
2090 | /*! | |
2091 | @name Enumeration field class mapping | |
2092 | @{ | |
2093 | */ | |
2094 | ||
2095 | /*! | |
2096 | @typedef struct bt_field_class_enumeration_mapping bt_field_class_enumeration_mapping; | |
2097 | ||
2098 | @brief | |
2099 | Enumeration field class mapping. | |
2100 | */ | |
2101 | ||
2102 | /*! | |
2103 | @brief | |
2104 | Returns the number of mappings contained in the \bt_enum_fc | |
2105 | \bt_p{field_class}. | |
2106 | ||
2107 | See the \ref api-tir-fc-enum-prop-mappings "mappings" property. | |
2108 | ||
2109 | @param[in] field_class | |
2110 | Enumeration field class of which to get the number of contained | |
2111 | mappings. | |
2112 | ||
2113 | @returns | |
2114 | Number of contained mappings in \bt_p{field_class}. | |
2115 | ||
2116 | @bt_pre_not_null{field_class} | |
2117 | @bt_pre_is_enum_fc{field_class} | |
2118 | */ | |
2119 | extern uint64_t bt_field_class_enumeration_get_mapping_count( | |
2120 | const bt_field_class *field_class); | |
2121 | ||
2122 | /*! | |
2123 | @brief | |
2124 | Returns the label of the \bt_enum_fc mapping \bt_p{mapping}. | |
2125 | ||
2126 | See the \ref api-tir-fc-enum-prop-mappings "mappings" property. | |
2127 | ||
2128 | @param[in] mapping | |
2129 | Enumeration field class mapping of which to get the label. | |
2130 | ||
2131 | @returns | |
2132 | @parblock | |
2133 | Label of \bt_p{mapping}. | |
2134 | ||
2135 | The returned pointer remains valid as long as \bt_p{mapping} exists. | |
2136 | @endparblock | |
2137 | ||
2138 | @bt_pre_not_null{mapping} | |
2139 | */ | |
2140 | extern const char *bt_field_class_enumeration_mapping_get_label( | |
2141 | const bt_field_class_enumeration_mapping *mapping); | |
2142 | ||
2143 | /*! @} */ | |
2144 | ||
2145 | /*! | |
2146 | @name Unsigned enumeration field class | |
2147 | @{ | |
2148 | */ | |
2149 | ||
2150 | /*! | |
2151 | @brief | |
2152 | Creates an \bt_uenum_fc from the trace class \bt_p{trace_class}. | |
2153 | ||
2154 | On success, the returned unsigned enumeration field class has the | |
2155 | following property values: | |
2156 | ||
2157 | <table> | |
2158 | <tr> | |
2159 | <th>Property | |
2160 | <th>Value | |
2161 | <tr> | |
2162 | <td>\ref api-tir-fc-int-prop-size "Field value range" | |
2163 | <td>[0, 2<sup>64</sup> - 1] | |
2164 | <tr> | |
2165 | <td>\ref api-tir-fc-int-prop-base "Preferred display base" | |
2166 | <td>#BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_DECIMAL | |
2167 | <tr> | |
2168 | <td>\ref api-tir-fc-enum-prop-mappings "Mappings" | |
2169 | <td>\em None | |
2170 | <tr> | |
2171 | <td>\ref api-tir-fc-prop-user-attrs "User attributes" | |
2172 | <td>Empty \bt_map_val | |
2173 | </table> | |
2174 | ||
2175 | @param[in] trace_class | |
2176 | Trace class from which to create an unsigned enumeration field | |
2177 | class. | |
2178 | ||
2179 | @returns | |
2180 | New unsigned enumeration field class reference, or \c NULL on memory | |
2181 | error. | |
2182 | ||
2183 | @bt_pre_not_null{trace_class} | |
2184 | */ | |
2185 | extern bt_field_class *bt_field_class_enumeration_unsigned_create( | |
2186 | bt_trace_class *trace_class); | |
2187 | ||
2188 | /*! | |
2189 | @brief | |
2190 | Adds a mapping to the \bt_uenum_fc \bt_p{field_class} having the | |
2191 | label \bt_p{label} and the unsigned integer ranges \bt_p{ranges}. | |
2192 | ||
2193 | See the \ref api-tir-fc-enum-prop-mappings "mappings" property. | |
2194 | ||
2195 | @param[in] field_class | |
2196 | Unsigned enumeration field class to which to add a mapping having | |
2197 | the label \bt_p{label} and the integer ranges \bt_p{ranges}. | |
2198 | @param[in] label | |
2199 | Label of the mapping to add to \bt_p{field_class} (copied). | |
2200 | @param[in] ranges | |
2201 | Unsigned integer ranges of the mapping to add to | |
2202 | \bt_p{field_class}. | |
2203 | ||
2204 | @retval #BT_FIELD_CLASS_ENUMERATION_ADD_MAPPING_STATUS_OK | |
2205 | Success. | |
2206 | @retval #BT_FIELD_CLASS_ENUMERATION_ADD_MAPPING_STATUS_MEMORY_ERROR | |
2207 | Out of memory. | |
2208 | ||
2209 | @bt_pre_not_null{field_class} | |
2210 | @bt_pre_hot{field_class} | |
2211 | @bt_pre_is_uenum_fc{field_class} | |
2212 | @bt_pre_not_null{label} | |
2213 | @pre | |
2214 | \bt_p{field_class} has no mapping with the label \bt_p{label}. | |
2215 | @bt_pre_not_null{ranges} | |
2216 | @pre | |
2217 | \bt_p{ranges} contains one or more unsigned integer ranges. | |
2218 | */ | |
2219 | extern bt_field_class_enumeration_add_mapping_status | |
2220 | bt_field_class_enumeration_unsigned_add_mapping( | |
2221 | bt_field_class *field_class, const char *label, | |
2222 | const bt_integer_range_set_unsigned *ranges); | |
2223 | ||
2224 | /*! | |
2225 | @brief | |
2226 | Borrows the mapping at index \bt_p{index} from the | |
2227 | \bt_uenum_fc \bt_p{field_class}. | |
2228 | ||
2229 | See the \ref api-tir-fc-enum-prop-mappings "mappings" property. | |
2230 | ||
2231 | @param[in] field_class | |
2232 | Unsigned enumeration field class from which to borrow the mapping at | |
2233 | index \bt_p{index}. | |
2234 | @param[in] index | |
2235 | Index of the mapping to borrow from \bt_p{field_class}. | |
2236 | ||
2237 | @returns | |
2238 | @parblock | |
2239 | \em Borrowed reference of the mapping of | |
2240 | \bt_p{field_class} at index \bt_p{index}. | |
2241 | ||
2242 | The returned pointer remains valid as long as \bt_p{field_class} | |
2243 | is not modified. | |
2244 | @endparblock | |
2245 | ||
2246 | @bt_pre_not_null{field_class} | |
2247 | @bt_pre_is_uenum_fc{field_class} | |
2248 | @pre | |
2249 | \bt_p{index} is less than the number of mappings in | |
2250 | \bt_p{field_class} (as returned by | |
2251 | bt_field_class_enumeration_get_mapping_count()). | |
2252 | ||
2253 | @sa bt_field_class_enumeration_get_mapping_count() — | |
2254 | Returns the number of mappings contained in an | |
2255 | enumeration field class. | |
2256 | */ | |
2257 | extern const bt_field_class_enumeration_unsigned_mapping * | |
2258 | bt_field_class_enumeration_unsigned_borrow_mapping_by_index_const( | |
2259 | const bt_field_class *field_class, uint64_t index); | |
2260 | ||
2261 | /*! | |
2262 | @brief | |
2263 | Borrows the mapping having the label \bt_p{label} from the | |
2264 | \bt_uenum_fc \bt_p{field_class}. | |
2265 | ||
2266 | See the \ref api-tir-fc-enum-prop-mappings "mappings" property. | |
2267 | ||
2268 | If there's no mapping having the label \bt_p{label} in | |
2269 | \bt_p{field_class}, this function returns \c NULL. | |
2270 | ||
2271 | @param[in] field_class | |
2272 | Unsigned enumeration field class from which to borrow the mapping | |
2273 | having the label \bt_p{label}. | |
2274 | @param[in] label | |
2275 | Label of the mapping to borrow from \bt_p{field_class}. | |
2276 | ||
2277 | @returns | |
2278 | @parblock | |
2279 | \em Borrowed reference of the mapping of | |
2280 | \bt_p{field_class} having the label \bt_p{label}, or \c NULL | |
2281 | if none. | |
2282 | ||
2283 | The returned pointer remains valid as long as \bt_p{field_class} | |
2284 | is not modified. | |
2285 | @endparblock | |
2286 | ||
2287 | @bt_pre_not_null{field_class} | |
2288 | @bt_pre_is_uenum_fc{field_class} | |
2289 | @bt_pre_not_null{label} | |
2290 | */ | |
2291 | extern const bt_field_class_enumeration_unsigned_mapping * | |
2292 | bt_field_class_enumeration_unsigned_borrow_mapping_by_label_const( | |
2293 | const bt_field_class *field_class, const char *label); | |
2294 | ||
2295 | /*! | |
2296 | @brief | |
2297 | Returns an array of all the labels of the mappings of the | |
2298 | \bt_uenum_fc \bt_p{field_class} of which the \bt_p_uint_rg contain | |
2299 | the integral value \bt_p{value}. | |
2300 | ||
2301 | See the \ref api-tir-fc-enum-prop-mappings "mappings" property. | |
2302 | ||
2303 | This function sets \bt_p{*labels} to the resulting array and | |
2304 | \bt_p{*count} to the number of labels in \bt_p{*labels}. | |
2305 | ||
2306 | On success, if there's no mapping ranges containing the value | |
2307 | \bt_p{value}, \bt_p{*count} is 0. | |
2308 | ||
2309 | @param[in] field_class | |
2310 | Unsigned enumeration field class from which to get the labels of the | |
2311 | mappings of which the ranges contain \bt_p{value}. | |
2312 | @param[in] value | |
2313 | Value for which to get the mapped labels in \bt_p{field_class}. | |
2314 | @param[out] labels | |
2315 | @parblock | |
2316 | <strong>On success</strong>, \bt_p{*labels} | |
2317 | is an array of labels of the mappings of \bt_p{field_class} | |
2318 | containing \bt_p{value}. | |
2319 | ||
2320 | The number of labels in \bt_p{*labels} is \bt_p{*count}. | |
2321 | ||
2322 | The array is owned by \bt_p{field_class} and remains valid as long | |
2323 | as \bt_p{field_class} is not modified. | |
2324 | @endparblock | |
2325 | @param[out] count | |
2326 | <strong>On success</strong>, \bt_p{*count} is the number of labels | |
2327 | in \bt_p{*labels} (can be 0). | |
2328 | ||
2329 | @retval #BT_FIELD_CLASS_ENUMERATION_GET_MAPPING_LABELS_BY_VALUE_STATUS_OK | |
2330 | Success. | |
2331 | @retval #BT_FIELD_CLASS_ENUMERATION_GET_MAPPING_LABELS_BY_VALUE_STATUS_MEMORY_ERROR | |
2332 | Out of memory. | |
2333 | ||
2334 | @bt_pre_not_null{field_class} | |
2335 | @bt_pre_is_uenum_fc{field_class} | |
2336 | @bt_pre_not_null{labels} | |
2337 | @bt_pre_not_null{count} | |
2338 | */ | |
2339 | extern bt_field_class_enumeration_get_mapping_labels_for_value_status | |
2340 | bt_field_class_enumeration_unsigned_get_mapping_labels_for_value( | |
2341 | const bt_field_class *field_class, uint64_t value, | |
2342 | bt_field_class_enumeration_mapping_label_array *labels, | |
2343 | uint64_t *count); | |
2344 | ||
2345 | /*! @} */ | |
2346 | ||
2347 | /*! | |
2348 | @name Unsigned enumeration field class mapping | |
2349 | @{ | |
2350 | */ | |
2351 | ||
2352 | /*! | |
2353 | @typedef struct bt_field_class_enumeration_unsigned_mapping bt_field_class_enumeration_unsigned_mapping; | |
2354 | ||
2355 | @brief | |
2356 | Unsigned enumeration field class mapping. | |
2357 | */ | |
2358 | ||
2359 | /*! | |
2360 | @brief | |
2361 | Borrows the \bt_p_uint_rg from the \bt_uenum_fc mapping | |
2362 | \bt_p{mapping}. | |
2363 | ||
2364 | See the \ref api-tir-fc-enum-prop-mappings "mappings" property. | |
2365 | ||
2366 | @param[in] mapping | |
2367 | Unsigned enumeration field class mapping from which to borrow the | |
2368 | unsigned integer ranges. | |
2369 | ||
2370 | @returns | |
2371 | Unsigned integer ranges of \bt_p{mapping}. | |
2372 | ||
2373 | @bt_pre_not_null{mapping} | |
2374 | */ | |
2375 | extern const bt_integer_range_set_unsigned * | |
2376 | bt_field_class_enumeration_unsigned_mapping_borrow_ranges_const( | |
2377 | const bt_field_class_enumeration_unsigned_mapping *mapping); | |
2378 | ||
2379 | /*! | |
2380 | @brief | |
2381 | \ref api-fund-c-typing "Upcasts" the \bt_uenum_fc mapping | |
2382 | \bt_p{mapping} to the common #bt_field_class_enumeration_mapping | |
2383 | type. | |
2384 | ||
2385 | See the \ref api-tir-fc-enum-prop-mappings "mappings" property. | |
2386 | ||
2387 | @param[in] mapping | |
2388 | @parblock | |
2389 | Unsigned enumeration field class mapping to upcast. | |
2390 | ||
2391 | Can be \c NULL. | |
2392 | @endparblock | |
2393 | ||
2394 | @returns | |
2395 | \bt_p{mapping} as a common enumeration field class mapping. | |
2396 | */ | |
2397 | static inline | |
2398 | const bt_field_class_enumeration_mapping * | |
2399 | bt_field_class_enumeration_unsigned_mapping_as_mapping_const( | |
2400 | const bt_field_class_enumeration_unsigned_mapping *mapping) | |
2401 | { | |
2402 | return __BT_UPCAST_CONST(bt_field_class_enumeration_mapping, mapping); | |
2403 | } | |
2404 | ||
2405 | /*! @} */ | |
2406 | ||
2407 | /*! | |
2408 | @name Signed enumeration field class | |
2409 | @{ | |
2410 | */ | |
2411 | ||
2412 | /*! | |
2413 | @brief | |
2414 | Creates a \bt_senum_fc from the trace class \bt_p{trace_class}. | |
2415 | ||
2416 | On success, the returned signed enumeration field class has the | |
2417 | following property values: | |
2418 | ||
2419 | <table> | |
2420 | <tr> | |
2421 | <th>Property | |
2422 | <th>Value | |
2423 | <tr> | |
2424 | <td>\ref api-tir-fc-int-prop-size "Field value range" | |
2425 | <td>[-2<sup>63</sup>, 2<sup>63</sup> - 1] | |
2426 | <tr> | |
2427 | <td>\ref api-tir-fc-int-prop-base "Preferred display base" | |
2428 | <td>#BT_FIELD_CLASS_INTEGER_PREFERRED_DISPLAY_BASE_DECIMAL | |
2429 | <tr> | |
2430 | <td>\ref api-tir-fc-enum-prop-mappings "Mappings" | |
2431 | <td>\em None | |
2432 | <tr> | |
2433 | <td>\ref api-tir-fc-prop-user-attrs "User attributes" | |
2434 | <td>Empty \bt_map_val | |
2435 | </table> | |
2436 | ||
2437 | @param[in] trace_class | |
2438 | Trace class from which to create a signed enumeration field | |
2439 | class. | |
2440 | ||
2441 | @returns | |
2442 | New signed enumeration field class reference, or \c NULL on memory | |
2443 | error. | |
2444 | ||
2445 | @bt_pre_not_null{trace_class} | |
2446 | */ | |
2447 | extern bt_field_class *bt_field_class_enumeration_signed_create( | |
2448 | bt_trace_class *trace_class); | |
2449 | ||
2450 | /*! | |
2451 | @brief | |
2452 | Adds a mapping to the \bt_senum_fc \bt_p{field_class} having the | |
2453 | label \bt_p{label} and the \bt_p_sint_rg \bt_p{ranges}. | |
2454 | ||
2455 | See the \ref api-tir-fc-enum-prop-mappings "mappings" property. | |
2456 | ||
2457 | @param[in] field_class | |
2458 | Signed enumeration field class to which to add a mapping having | |
2459 | the label \bt_p{label} and the integer ranges \bt_p{ranges}. | |
2460 | @param[in] label | |
2461 | Label of the mapping to add to \bt_p{field_class} (copied). | |
2462 | @param[in] ranges | |
2463 | Signed integer ranges of the mapping to add to | |
2464 | \bt_p{field_class}. | |
2465 | ||
2466 | @retval #BT_FIELD_CLASS_ENUMERATION_ADD_MAPPING_STATUS_OK | |
2467 | Success. | |
2468 | @retval #BT_FIELD_CLASS_ENUMERATION_ADD_MAPPING_STATUS_MEMORY_ERROR | |
2469 | Out of memory. | |
2470 | ||
2471 | @bt_pre_not_null{field_class} | |
2472 | @bt_pre_hot{field_class} | |
2473 | @bt_pre_is_senum_fc{field_class} | |
2474 | @bt_pre_not_null{label} | |
2475 | @pre | |
2476 | \bt_p{field_class} has no mapping with the label \bt_p{label}. | |
2477 | @bt_pre_not_null{ranges} | |
2478 | @pre | |
2479 | \bt_p{ranges} contains one or more signed integer ranges. | |
2480 | */ | |
2481 | extern bt_field_class_enumeration_add_mapping_status | |
2482 | bt_field_class_enumeration_signed_add_mapping( | |
2483 | bt_field_class *field_class, const char *label, | |
2484 | const bt_integer_range_set_signed *ranges); | |
2485 | ||
2486 | /*! | |
2487 | @brief | |
2488 | Borrows the mapping at index \bt_p{index} from the | |
2489 | \bt_senum_fc \bt_p{field_class}. | |
2490 | ||
2491 | See the \ref api-tir-fc-enum-prop-mappings "mappings" property. | |
2492 | ||
2493 | @param[in] field_class | |
2494 | Signed enumeration field class from which to borrow the mapping at | |
2495 | index \bt_p{index}. | |
2496 | @param[in] index | |
2497 | Index of the mapping to borrow from \bt_p{field_class}. | |
2498 | ||
2499 | @returns | |
2500 | @parblock | |
2501 | \em Borrowed reference of the mapping of | |
2502 | \bt_p{field_class} at index \bt_p{index}. | |
2503 | ||
2504 | The returned pointer remains valid as long as \bt_p{field_class} | |
2505 | is not modified. | |
2506 | @endparblock | |
2507 | ||
2508 | @bt_pre_not_null{field_class} | |
2509 | @bt_pre_is_senum_fc{field_class} | |
2510 | @pre | |
2511 | \bt_p{index} is less than the number of mappings in | |
2512 | \bt_p{field_class} (as returned by | |
2513 | bt_field_class_enumeration_get_mapping_count()). | |
2514 | ||
2515 | @sa bt_field_class_enumeration_get_mapping_count() — | |
2516 | Returns the number of mappings contained in an | |
2517 | enumeration field class. | |
2518 | */ | |
2519 | extern const bt_field_class_enumeration_signed_mapping * | |
2520 | bt_field_class_enumeration_signed_borrow_mapping_by_index_const( | |
2521 | const bt_field_class *field_class, uint64_t index); | |
2522 | ||
2523 | /*! | |
2524 | @brief | |
2525 | Borrows the mapping having the label \bt_p{label} from the | |
2526 | \bt_senum_fc \bt_p{field_class}. | |
2527 | ||
2528 | See the \ref api-tir-fc-enum-prop-mappings "mappings" property. | |
2529 | ||
2530 | If there's no mapping having the label \bt_p{label} in | |
2531 | \bt_p{field_class}, this function returns \c NULL. | |
2532 | ||
2533 | @param[in] field_class | |
2534 | Signed enumeration field class from which to borrow the mapping | |
2535 | having the label \bt_p{label}. | |
2536 | @param[in] label | |
2537 | Label of the mapping to borrow from \bt_p{field_class}. | |
2538 | ||
2539 | @returns | |
2540 | @parblock | |
2541 | \em Borrowed reference of the mapping of | |
2542 | \bt_p{field_class} having the label \bt_p{label}, or \c NULL | |
2543 | if none. | |
2544 | ||
2545 | The returned pointer remains valid as long as \bt_p{field_class} | |
2546 | is not modified. | |
2547 | @endparblock | |
2548 | ||
2549 | @bt_pre_not_null{field_class} | |
2550 | @bt_pre_is_senum_fc{field_class} | |
2551 | @bt_pre_not_null{label} | |
2552 | */ | |
2553 | extern const bt_field_class_enumeration_signed_mapping * | |
2554 | bt_field_class_enumeration_signed_borrow_mapping_by_label_const( | |
2555 | const bt_field_class *field_class, const char *label); | |
2556 | ||
2557 | /*! | |
2558 | @brief | |
2559 | Returns an array of all the labels of the mappings of the | |
2560 | \bt_senum_fc \bt_p{field_class} of which the \bt_p_sint_rg contain | |
2561 | the integral value \bt_p{value}. | |
2562 | ||
2563 | See the \ref api-tir-fc-enum-prop-mappings "mappings" property. | |
2564 | ||
2565 | This function sets \bt_p{*labels} to the resulting array and | |
2566 | \bt_p{*count} to the number of labels in \bt_p{*labels}. | |
2567 | ||
2568 | On success, if there's no mapping ranges containing the value | |
2569 | \bt_p{value}, \bt_p{*count} is 0. | |
2570 | ||
2571 | @param[in] field_class | |
2572 | Signed enumeration field class from which to get the labels of the | |
2573 | mappings of which the ranges contain \bt_p{value}. | |
2574 | @param[in] value | |
2575 | Value for which to get the mapped labels in \bt_p{field_class}. | |
2576 | @param[out] labels | |
2577 | @parblock | |
2578 | <strong>On success</strong>, \bt_p{*labels} | |
2579 | is an array of labels of the mappings of \bt_p{field_class} | |
2580 | containing \bt_p{value}. | |
2581 | ||
2582 | The number of labels in \bt_p{*labels} is \bt_p{*count}. | |
2583 | ||
2584 | The array is owned by \bt_p{field_class} and remains valid as long | |
2585 | as \bt_p{field_class} is not modified. | |
2586 | @endparblock | |
2587 | @param[out] count | |
2588 | <strong>On success</strong>, \bt_p{*count} is the number of labels | |
2589 | in \bt_p{*labels} (can be 0). | |
2590 | ||
2591 | @retval #BT_FIELD_CLASS_ENUMERATION_GET_MAPPING_LABELS_BY_VALUE_STATUS_OK | |
2592 | Success. | |
2593 | @retval #BT_FIELD_CLASS_ENUMERATION_GET_MAPPING_LABELS_BY_VALUE_STATUS_MEMORY_ERROR | |
2594 | Out of memory. | |
2595 | ||
2596 | @bt_pre_not_null{field_class} | |
2597 | @bt_pre_is_senum_fc{field_class} | |
2598 | @bt_pre_not_null{labels} | |
2599 | @bt_pre_not_null{count} | |
2600 | */ | |
2601 | extern bt_field_class_enumeration_get_mapping_labels_for_value_status | |
2602 | bt_field_class_enumeration_signed_get_mapping_labels_for_value( | |
2603 | const bt_field_class *field_class, int64_t value, | |
2604 | bt_field_class_enumeration_mapping_label_array *labels, | |
2605 | uint64_t *count); | |
2606 | ||
2607 | /*! @} */ | |
2608 | ||
2609 | /*! | |
2610 | @name Signed enumeration field class mapping | |
2611 | @{ | |
2612 | */ | |
2613 | ||
2614 | /*! | |
2615 | @typedef struct bt_field_class_enumeration_signed_mapping bt_field_class_enumeration_signed_mapping; | |
2616 | ||
2617 | @brief | |
2618 | Signed enumeration field class mapping. | |
2619 | */ | |
2620 | ||
2621 | /*! | |
2622 | @brief | |
2623 | Borrows the \bt_p_sint_rg from the \bt_senum_fc mapping | |
2624 | \bt_p{mapping}. | |
2625 | ||
2626 | See the \ref api-tir-fc-enum-prop-mappings "mappings" property. | |
2627 | ||
2628 | @param[in] mapping | |
2629 | Signed enumeration field class mapping from which to borrow the | |
2630 | signed integer ranges. | |
2631 | ||
2632 | @returns | |
2633 | Signed integer ranges of \bt_p{mapping}. | |
2634 | ||
2635 | @bt_pre_not_null{mapping} | |
2636 | */ | |
2637 | extern const bt_integer_range_set_signed * | |
2638 | bt_field_class_enumeration_signed_mapping_borrow_ranges_const( | |
2639 | const bt_field_class_enumeration_signed_mapping *mapping); | |
2640 | ||
2641 | /*! | |
2642 | @brief | |
2643 | \ref api-fund-c-typing "Upcasts" the \bt_senum_fc mapping | |
2644 | \bt_p{mapping} to the common #bt_field_class_enumeration_mapping | |
2645 | type. | |
2646 | ||
2647 | See the \ref api-tir-fc-enum-prop-mappings "mappings" property. | |
2648 | ||
2649 | @param[in] mapping | |
2650 | @parblock | |
2651 | Signed enumeration field class mapping to upcast. | |
2652 | ||
2653 | Can be \c NULL. | |
2654 | @endparblock | |
2655 | ||
2656 | @returns | |
2657 | \bt_p{mapping} as a common enumeration field class mapping. | |
2658 | */ | |
2659 | static inline | |
2660 | const bt_field_class_enumeration_mapping * | |
2661 | bt_field_class_enumeration_signed_mapping_as_mapping_const( | |
2662 | const bt_field_class_enumeration_signed_mapping *mapping) | |
2663 | { | |
2664 | return __BT_UPCAST_CONST(bt_field_class_enumeration_mapping, mapping); | |
2665 | } | |
2666 | ||
2667 | /*! @} */ | |
2668 | ||
2669 | /*! | |
2670 | @name String field class | |
2671 | @{ | |
2672 | */ | |
2673 | ||
2674 | /*! | |
2675 | @brief | |
2676 | Creates a \bt_string_fc from the trace class \bt_p{trace_class}. | |
2677 | ||
2678 | On success, the returned string field class has the following property | |
2679 | value: | |
2680 | ||
2681 | <table> | |
2682 | <tr> | |
2683 | <th>Property | |
2684 | <th>Value | |
2685 | <tr> | |
2686 | <td>\ref api-tir-fc-prop-user-attrs "User attributes" | |
2687 | <td>Empty \bt_map_val | |
2688 | </table> | |
2689 | ||
2690 | @param[in] trace_class | |
2691 | Trace class from which to create a string field class. | |
2692 | ||
2693 | @returns | |
2694 | New string field class reference, or \c NULL on memory error. | |
2695 | ||
2696 | @bt_pre_not_null{trace_class} | |
2697 | */ | |
2698 | extern bt_field_class *bt_field_class_string_create( | |
2699 | bt_trace_class *trace_class); | |
2700 | ||
2701 | /*! @} */ | |
2702 | ||
2703 | /*! | |
2704 | @name Array field class | |
2705 | @{ | |
2706 | */ | |
2707 | ||
2708 | /*! | |
2709 | @brief | |
2710 | Borrows the element field class from the \bt_array_fc | |
2711 | \bt_p{field_class}. | |
2712 | ||
2713 | See the \ref api-tir-fc-array-prop-elem-fc "element field class" | |
2714 | property. | |
2715 | ||
2716 | @param[in] field_class | |
2717 | Array field class from which to borrow the element field class. | |
2718 | ||
2719 | @returns | |
2720 | Element field class of \bt_p{field_class}. | |
2721 | ||
2722 | @bt_pre_not_null{field_class} | |
2723 | @bt_pre_is_array_fc{field_class} | |
2724 | ||
2725 | @sa bt_field_class_array_borrow_element_field_class_const() — | |
2726 | \c const version of this function. | |
2727 | */ | |
2728 | extern bt_field_class *bt_field_class_array_borrow_element_field_class( | |
2729 | bt_field_class *field_class); | |
2730 | ||
2731 | /*! | |
2732 | @brief | |
2733 | Borrows the element field class from the \bt_array_fc | |
2734 | \bt_p{field_class} (\c const version). | |
2735 | ||
2736 | See bt_field_class_array_borrow_element_field_class(). | |
2737 | */ | |
2738 | extern const bt_field_class * | |
2739 | bt_field_class_array_borrow_element_field_class_const( | |
2740 | const bt_field_class *field_class); | |
2741 | ||
2742 | /*! @} */ | |
2743 | ||
2744 | /*! | |
2745 | @name Static array field class | |
2746 | @{ | |
2747 | */ | |
2748 | ||
2749 | /*! | |
2750 | @brief | |
2751 | Creates a \bt_sarray_fc having the element field class | |
2752 | \bt_p{element_field_class} and the length \bt_p{length} from the | |
2753 | trace class \bt_p{trace_class}. | |
2754 | ||
2755 | On success, the returned static array field class has the following | |
2756 | property values: | |
2757 | ||
2758 | <table> | |
2759 | <tr> | |
2760 | <th>Property | |
2761 | <th>Value | |
2762 | <tr> | |
2763 | <td>\ref api-tir-fc-array-prop-elem-fc "Element field class" | |
2764 | <td>\bt_p{element_field_class} | |
2765 | <tr> | |
2766 | <td>\ref api-tir-fc-sarray-prop-len "Length" | |
2767 | <td>\bt_p{length} | |
2768 | <tr> | |
2769 | <td>\ref api-tir-fc-prop-user-attrs "User attributes" | |
2770 | <td>Empty \bt_map_val | |
2771 | </table> | |
2772 | ||
2773 | @param[in] trace_class | |
2774 | Trace class from which to create a static array field class. | |
2775 | @param[in] element_field_class | |
2776 | Class of the element fields of the instances of the static array | |
2777 | field class to create. | |
2778 | @param[in] length | |
2779 | Length of the instances of the static array field class to create. | |
2780 | ||
2781 | @returns | |
2782 | New static array field class reference, or \c NULL on memory error. | |
2783 | ||
2784 | @bt_pre_not_null{trace_class} | |
2785 | @bt_pre_not_null{element_field_class} | |
2786 | bt_pre_fc_not_in_tc{element_field_class} | |
2787 | ||
2788 | @bt_post_success_frozen{element_field_class} | |
2789 | */ | |
2790 | extern bt_field_class *bt_field_class_array_static_create( | |
2791 | bt_trace_class *trace_class, | |
2792 | bt_field_class *element_field_class, uint64_t length); | |
2793 | ||
2794 | /*! | |
2795 | @brief | |
2796 | Returns the length of the \bt_sarray_fc \bt_p{field_class}. | |
2797 | ||
2798 | See the \ref api-tir-fc-sarray-prop-len "length" property. | |
2799 | ||
2800 | @param[in] field_class | |
2801 | Static array field class of which to get the length. | |
2802 | ||
2803 | @returns | |
2804 | Length of \bt_p{field_class}. | |
2805 | ||
2806 | @bt_pre_not_null{field_class} | |
2807 | @bt_pre_is_sarray_fc{field_class} | |
2808 | */ | |
2809 | extern uint64_t bt_field_class_array_static_get_length( | |
2810 | const bt_field_class *field_class); | |
2811 | ||
2812 | /*! @} */ | |
2813 | ||
2814 | /*! | |
2815 | @name Dynamic array field class | |
2816 | @{ | |
2817 | */ | |
2818 | ||
2819 | /*! | |
2820 | @brief | |
2821 | Creates a \bt_darray_fc having the element field class | |
2822 | \bt_p{element_field_class} from the trace class \bt_p{trace_class}. | |
2823 | ||
2824 | If \bt_p{length_field_class} is not \c NULL, then the created dynamic | |
2825 | array field class has a linked length field class. | |
2826 | See | |
2827 | \ref api-tir-fc-link "Field classes with links to other field classes" | |
2828 | to learn more. | |
2829 | ||
2830 | On success, the returned dynamic array field class has the following | |
2831 | property values: | |
2832 | ||
2833 | <table> | |
2834 | <tr> | |
2835 | <th>Property | |
2836 | <th>Value | |
2837 | <tr> | |
2838 | <td>\ref api-tir-fc-array-prop-elem-fc "Element field class" | |
2839 | <td>\bt_p{element_field_class} | |
2840 | <tr> | |
2841 | <td>\ref api-tir-fc-darray-prop-len-fp "Length field path" | |
2842 | <td> | |
2843 | \em None (if \bt_p{length_field_class} is not \c NULL, this | |
2844 | property becomes available when the returned field class becomes | |
2845 | part of an \bt_ev_cls or of a \bt_stream_cls) | |
2846 | <tr> | |
2847 | <td>\ref api-tir-fc-prop-user-attrs "User attributes" | |
2848 | <td>Empty \bt_map_val | |
2849 | </table> | |
2850 | ||
2851 | @param[in] trace_class | |
2852 | Trace class from which to create a dynamic array field class. | |
2853 | @param[in] element_field_class | |
2854 | Class of the element fields of the instances of the dynamic array | |
2855 | field class to create. | |
2856 | @param[in] length_field_class | |
2857 | @parblock | |
2858 | Linked length field class of the dynamic array field class to | |
2859 | create. | |
2860 | ||
2861 | Can be \c NULL. | |
2862 | @endparblock | |
2863 | ||
2864 | @returns | |
2865 | New dynamic array field class reference, or \c NULL on memory error. | |
2866 | ||
2867 | @bt_pre_not_null{trace_class} | |
2868 | @bt_pre_not_null{element_field_class} | |
2869 | @bt_pre_fc_not_in_tc{element_field_class} | |
2870 | @pre | |
2871 | <strong>If \bt_p{length_field_class} is not \c NULL</strong>, | |
2872 | \bt_p{length_field_class} is an \bt_uint_fc. | |
2873 | ||
2874 | @bt_post_success_frozen{element_field_class} | |
2875 | @bt_post_success_frozen{length_field_class} | |
2876 | */ | |
2877 | extern bt_field_class *bt_field_class_array_dynamic_create( | |
2878 | bt_trace_class *trace_class, | |
2879 | bt_field_class *element_field_class, | |
2880 | bt_field_class *length_field_class); | |
2881 | ||
2882 | /*! @} */ | |
2883 | ||
2884 | /*! | |
2885 | @name Dynamic array field class with length field | |
2886 | @{ | |
2887 | */ | |
2888 | ||
2889 | /*! | |
2890 | @brief | |
2891 | Borrows the length field path from the \bt_darray_fc (with a length | |
2892 | field) \bt_p{field_class}. | |
2893 | ||
2894 | See the \ref api-tir-fc-darray-prop-len-fp "length field path" property. | |
2895 | ||
2896 | This property is only available when a \bt_struct_fc containing | |
2897 | (recursively) \bt_p{field_class} is passed to one of: | |
2898 | ||
2899 | - bt_stream_class_set_packet_context_field_class() | |
2900 | - bt_stream_class_set_event_common_context_field_class() | |
2901 | - bt_event_class_set_specific_context_field_class() | |
2902 | - bt_event_class_set_payload_field_class() | |
2903 | ||
2904 | In the meantime, this function returns \c NULL. | |
2905 | ||
2906 | @param[in] field_class | |
2907 | Dynamic array field class from which to borrow the length | |
2908 | field path. | |
2909 | ||
2910 | @returns | |
2911 | Length field path of \bt_p{field_class}. | |
2912 | ||
2913 | @bt_pre_not_null{field_class} | |
2914 | @bt_pre_is_darray_wl_fc{field_class} | |
2915 | */ | |
2916 | extern const bt_field_path * | |
2917 | bt_field_class_array_dynamic_with_length_field_borrow_length_field_path_const( | |
2918 | const bt_field_class *field_class); | |
2919 | ||
2920 | /*! @} */ | |
2921 | ||
2922 | /*! | |
2923 | @name Structure field class | |
2924 | @{ | |
2925 | */ | |
2926 | ||
2927 | /*! | |
2928 | @brief | |
2929 | Creates a \bt_struct_fc from the trace class \bt_p{trace_class}. | |
2930 | ||
2931 | On success, the returned structure field class has the following | |
2932 | property values: | |
2933 | ||
2934 | <table> | |
2935 | <tr> | |
2936 | <th>Property | |
2937 | <th>Value | |
2938 | <tr> | |
2939 | <td>\ref api-tir-fc-struct-prop-members "Members" | |
2940 | <td>\em None | |
2941 | <tr> | |
2942 | <td>\ref api-tir-fc-prop-user-attrs "User attributes" | |
2943 | <td>Empty \bt_map_val | |
2944 | </table> | |
2945 | ||
2946 | @param[in] trace_class | |
2947 | Trace class from which to create a structure field class. | |
2948 | ||
2949 | @returns | |
2950 | New structure field class reference, or \c NULL on memory error. | |
2951 | ||
2952 | @bt_pre_not_null{trace_class} | |
2953 | */ | |
2954 | extern bt_field_class *bt_field_class_structure_create( | |
2955 | bt_trace_class *trace_class); | |
2956 | ||
2957 | /*! | |
2958 | @brief | |
2959 | Status codes for bt_field_class_structure_append_member(). | |
2960 | */ | |
2961 | typedef enum bt_field_class_structure_append_member_status { | |
2962 | /*! | |
2963 | @brief | |
2964 | Success. | |
2965 | */ | |
2966 | BT_FIELD_CLASS_STRUCTURE_APPEND_MEMBER_STATUS_OK = __BT_FUNC_STATUS_OK, | |
2967 | ||
2968 | /*! | |
2969 | @brief | |
2970 | Out of memory. | |
2971 | */ | |
2972 | BT_FIELD_CLASS_STRUCTURE_APPEND_MEMBER_STATUS_MEMORY_ERROR = __BT_FUNC_STATUS_MEMORY_ERROR, | |
2973 | } bt_field_class_structure_append_member_status; | |
2974 | ||
2975 | /*! | |
2976 | @brief | |
2977 | Appends a member to the \bt_struct_fc \bt_p{field_class} having the | |
2978 | name \bt_p{name} and the field class \bt_p{member_field_class}. | |
2979 | ||
2980 | See the \ref api-tir-fc-struct-prop-members "members" property. | |
2981 | ||
2982 | @param[in] field_class | |
2983 | Structure field class to which to append a member having | |
2984 | the name \bt_p{name} and the field class \bt_p{member_field_class}. | |
2985 | @param[in] name | |
2986 | Name of the member to append to \bt_p{field_class} (copied). | |
2987 | @param[in] member_field_class | |
2988 | Field class of the member to append to \bt_p{field_class}. | |
2989 | ||
2990 | @retval #BT_FIELD_CLASS_STRUCTURE_APPEND_MEMBER_STATUS_OK | |
2991 | Success. | |
2992 | @retval #BT_FIELD_CLASS_STRUCTURE_APPEND_MEMBER_STATUS_MEMORY_ERROR | |
2993 | Out of memory. | |
2994 | ||
2995 | @bt_pre_not_null{field_class} | |
2996 | @bt_pre_hot{field_class} | |
2997 | @bt_pre_is_struct_fc{field_class} | |
2998 | @pre | |
2999 | \bt_p{field_class} has no member with the name \bt_p{name}. | |
3000 | @bt_pre_not_null{name} | |
3001 | @bt_pre_not_null{member_field_class} | |
3002 | @bt_pre_fc_not_in_tc{member_field_class} | |
3003 | ||
3004 | @bt_post_success_frozen{member_field_class} | |
3005 | */ | |
3006 | extern bt_field_class_structure_append_member_status | |
3007 | bt_field_class_structure_append_member( | |
3008 | bt_field_class *field_class, | |
3009 | const char *name, bt_field_class *member_field_class); | |
3010 | ||
3011 | /*! | |
3012 | @brief | |
3013 | Returns the number of members contained in the \bt_struct_fc | |
3014 | \bt_p{field_class}. | |
3015 | ||
3016 | See the \ref api-tir-fc-struct-prop-members "members" property. | |
3017 | ||
3018 | @param[in] field_class | |
3019 | Structure field class of which to get the number of contained | |
3020 | members. | |
3021 | ||
3022 | @returns | |
3023 | Number of contained members in \bt_p{field_class}. | |
3024 | ||
3025 | @bt_pre_not_null{field_class} | |
3026 | @bt_pre_is_struct_fc{field_class} | |
3027 | */ | |
3028 | extern uint64_t bt_field_class_structure_get_member_count( | |
3029 | const bt_field_class *field_class); | |
3030 | ||
3031 | /*! | |
3032 | @brief | |
3033 | Borrows the member at index \bt_p{index} from the | |
3034 | \bt_struct_fc \bt_p{field_class}. | |
3035 | ||
3036 | See the \ref api-tir-fc-struct-prop-members "members" property. | |
3037 | ||
3038 | @param[in] field_class | |
3039 | Structure field class from which to borrow the member at | |
3040 | index \bt_p{index}. | |
3041 | @param[in] index | |
3042 | Index of the member to borrow from \bt_p{field_class}. | |
3043 | ||
3044 | @returns | |
3045 | @parblock | |
3046 | \em Borrowed reference of the member of | |
3047 | \bt_p{field_class} at index \bt_p{index}. | |
3048 | ||
3049 | The returned pointer remains valid as long as \bt_p{field_class} | |
3050 | is not modified. | |
3051 | @endparblock | |
3052 | ||
3053 | @bt_pre_not_null{field_class} | |
3054 | @bt_pre_is_struct_fc{field_class} | |
3055 | @pre | |
3056 | \bt_p{index} is less than the number of members in | |
3057 | \bt_p{field_class} (as returned by | |
3058 | bt_field_class_structure_get_member_count()). | |
3059 | ||
3060 | @sa bt_field_class_structure_get_member_count() — | |
3061 | Returns the number of members contained in a structure field class. | |
3062 | @sa bt_field_class_structure_borrow_member_by_index_const() — | |
3063 | \c const version of this function. | |
3064 | */ | |
3065 | extern bt_field_class_structure_member * | |
3066 | bt_field_class_structure_borrow_member_by_index( | |
3067 | bt_field_class *field_class, uint64_t index); | |
3068 | ||
3069 | /*! | |
3070 | @brief | |
3071 | Borrows the member at index \bt_p{index} from the | |
3072 | \bt_struct_fc \bt_p{field_class} (\c const version). | |
3073 | ||
3074 | See bt_field_class_structure_borrow_member_by_index(). | |
3075 | */ | |
3076 | extern const bt_field_class_structure_member * | |
3077 | bt_field_class_structure_borrow_member_by_index_const( | |
3078 | const bt_field_class *field_class, uint64_t index); | |
3079 | ||
3080 | /*! | |
3081 | @brief | |
3082 | Borrows the member having the name \bt_p{name} from the | |
3083 | \bt_struct_fc \bt_p{field_class}. | |
3084 | ||
3085 | See the \ref api-tir-fc-struct-prop-members "members" property. | |
3086 | ||
3087 | If there's no member having the name \bt_p{name} in | |
3088 | \bt_p{field_class}, this function returns \c NULL. | |
3089 | ||
3090 | @param[in] field_class | |
3091 | Structure field class from which to borrow the member having the | |
3092 | name \bt_p{name}. | |
3093 | @param[in] name | |
3094 | Name of the member to borrow from \bt_p{field_class}. | |
3095 | ||
3096 | @returns | |
3097 | @parblock | |
3098 | \em Borrowed reference of the member of | |
3099 | \bt_p{field_class} having the name \bt_p{name}, or \c NULL | |
3100 | if none. | |
3101 | ||
3102 | The returned pointer remains valid as long as \bt_p{field_class} | |
3103 | is not modified. | |
3104 | @endparblock | |
3105 | ||
3106 | @bt_pre_not_null{field_class} | |
3107 | @bt_pre_is_struct_fc{field_class} | |
3108 | @bt_pre_not_null{name} | |
3109 | ||
3110 | @sa bt_field_class_structure_borrow_member_by_name_const() — | |
3111 | \c const version of this function. | |
3112 | */ | |
3113 | extern bt_field_class_structure_member * | |
3114 | bt_field_class_structure_borrow_member_by_name( | |
3115 | bt_field_class *field_class, const char *name); | |
3116 | ||
3117 | /*! | |
3118 | @brief | |
3119 | Borrows the member having the name \bt_p{name} from the | |
3120 | \bt_struct_fc \bt_p{field_class} (\c const version). | |
3121 | ||
3122 | See bt_field_class_structure_borrow_member_by_name(). | |
3123 | */ | |
3124 | extern const bt_field_class_structure_member * | |
3125 | bt_field_class_structure_borrow_member_by_name_const( | |
3126 | const bt_field_class *field_class, const char *name); | |
3127 | ||
3128 | /*! @} */ | |
3129 | ||
3130 | /*! | |
3131 | @name Structure field class member | |
3132 | @{ | |
3133 | */ | |
3134 | ||
3135 | /*! | |
3136 | @typedef struct bt_field_class_structure_member bt_field_class_structure_member; | |
3137 | ||
3138 | @brief | |
3139 | Structure field class member. | |
3140 | */ | |
3141 | ||
3142 | /*! | |
3143 | @brief | |
3144 | Returns the name of the \bt_struct_fc member \bt_p{member}. | |
3145 | ||
3146 | See the \ref api-tir-fc-struct-prop-members "members" property. | |
3147 | ||
3148 | @param[in] member | |
3149 | Structure field class member of which to get the name. | |
3150 | ||
3151 | @returns | |
3152 | @parblock | |
3153 | Name of \bt_p{member}. | |
3154 | ||
3155 | The returned pointer remains valid as long as \bt_p{member} exists. | |
3156 | @endparblock | |
3157 | ||
3158 | @bt_pre_not_null{member} | |
3159 | */ | |
3160 | extern const char *bt_field_class_structure_member_get_name( | |
3161 | const bt_field_class_structure_member *member); | |
3162 | ||
3163 | /*! | |
3164 | @brief | |
3165 | Borrows the field class from the \bt_struct_fc member | |
3166 | \bt_p{member}. | |
3167 | ||
3168 | See the \ref api-tir-fc-struct-prop-members "members" property. | |
3169 | ||
3170 | @param[in] member | |
3171 | Structure field class member from which to borrow the field class. | |
3172 | ||
3173 | @returns | |
3174 | Field class of \bt_p{member}. | |
3175 | ||
3176 | @bt_pre_not_null{member} | |
3177 | ||
3178 | @sa bt_field_class_structure_member_borrow_field_class_const() — | |
3179 | \c const version of this function. | |
3180 | */ | |
3181 | extern bt_field_class * | |
3182 | bt_field_class_structure_member_borrow_field_class( | |
3183 | bt_field_class_structure_member *member); | |
3184 | ||
3185 | /*! | |
3186 | @brief | |
3187 | Borrows the field class from the \bt_struct_fc member | |
3188 | \bt_p{member} (\c const version). | |
3189 | ||
3190 | See bt_field_class_structure_member_borrow_field_class(). | |
3191 | */ | |
3192 | extern const bt_field_class * | |
3193 | bt_field_class_structure_member_borrow_field_class_const( | |
3194 | const bt_field_class_structure_member *member); | |
3195 | ||
3196 | /*! | |
3197 | @brief | |
3198 | Sets the user attributes of the \bt_struct_fc member \bt_p{member} | |
3199 | to \bt_p{user_attributes}. | |
3200 | ||
3201 | See the \ref api-tir-fc-struct-prop-members "members" property. | |
3202 | ||
3203 | @note | |
3204 | When you append a member to a structure field class with | |
3205 | bt_field_class_structure_append_member(), the member's | |
3206 | initial user attributes is an empty \bt_map_val. Therefore you can | |
3207 | borrow it with | |
3208 | bt_field_class_structure_member_borrow_user_attributes() and fill it | |
3209 | directly instead of setting a new one with this function. | |
3210 | ||
3211 | @param[in] member | |
3212 | Structure field class member of which to set the user attributes to | |
3213 | \bt_p{user_attributes}. | |
3214 | @param[in] user_attributes | |
3215 | New user attributes of \bt_p{member}. | |
3216 | ||
3217 | @bt_pre_not_null{member} | |
3218 | @bt_pre_hot{member} | |
3219 | @bt_pre_not_null{user_attributes} | |
3220 | @bt_pre_is_map_val{user_attributes} | |
3221 | ||
3222 | @sa bt_field_class_structure_member_borrow_user_attributes() — | |
3223 | Borrows the user attributes of a structure field class member. | |
3224 | */ | |
3225 | extern void bt_field_class_structure_member_set_user_attributes( | |
3226 | bt_field_class_structure_member *member, | |
3227 | const bt_value *user_attributes); | |
3228 | ||
3229 | /*! | |
3230 | @brief | |
3231 | Borrows the user attributes of the \bt_struct_fc member | |
3232 | \bt_p{member}. | |
3233 | ||
3234 | See the \ref api-tir-fc-struct-prop-members "members" property. | |
3235 | ||
3236 | @note | |
3237 | When you append a member to a structure field class with | |
3238 | bt_field_class_structure_append_member(), the member's | |
3239 | initial user attributes is an empty \bt_map_val. | |
3240 | ||
3241 | @param[in] member | |
3242 | Structure field class member from which to borrow the user | |
3243 | attributes. | |
3244 | ||
3245 | @returns | |
3246 | User attributes of \bt_p{member} (a \bt_map_val). | |
3247 | ||
3248 | @bt_pre_not_null{member} | |
3249 | ||
3250 | @sa bt_field_class_structure_member_set_user_attributes() — | |
3251 | Sets the user attributes of a structure field class member. | |
3252 | @sa bt_field_class_structure_member_borrow_user_attributes_const() — | |
3253 | \c const version of this function. | |
3254 | */ | |
3255 | extern bt_value * | |
3256 | bt_field_class_structure_member_borrow_user_attributes( | |
3257 | bt_field_class_structure_member *member); | |
3258 | ||
3259 | /*! | |
3260 | @brief | |
3261 | Borrows the user attributes of the \bt_struct_fc member | |
3262 | \bt_p{member} (\c const version). | |
3263 | ||
3264 | See bt_field_class_structure_member_borrow_user_attributes(). | |
3265 | */ | |
3266 | extern const bt_value * | |
3267 | bt_field_class_structure_member_borrow_user_attributes_const( | |
3268 | const bt_field_class_structure_member *member); | |
3269 | ||
3270 | /*! @} */ | |
3271 | ||
3272 | /*! | |
3273 | @name Option field class | |
3274 | @{ | |
3275 | */ | |
3276 | ||
3277 | /*! | |
3278 | @brief | |
3279 | Borrows the optional field class from the \bt_opt_fc | |
3280 | \bt_p{field_class}. | |
3281 | ||
3282 | See the \ref api-tir-fc-opt-prop-fc "optional field class" property. | |
3283 | ||
3284 | @param[in] field_class | |
3285 | Option field class from which to borrow the optional field class. | |
3286 | ||
3287 | @returns | |
3288 | Optional field class of \bt_p{field_class}. | |
3289 | ||
3290 | @bt_pre_not_null{field_class} | |
3291 | @bt_pre_is_opt_fc{field_class} | |
3292 | ||
3293 | @sa bt_field_class_option_borrow_field_class_const() — | |
3294 | \c const version of this function. | |
3295 | */ | |
3296 | extern bt_field_class *bt_field_class_option_borrow_field_class( | |
3297 | bt_field_class *field_class); | |
3298 | ||
3299 | /*! | |
3300 | @brief | |
3301 | Borrows the optional field class from the \bt_opt_fc | |
3302 | \bt_p{field_class} (\c const version). | |
3303 | ||
3304 | See bt_field_class_option_borrow_field_class(). | |
3305 | */ | |
3306 | extern const bt_field_class * | |
3307 | bt_field_class_option_borrow_field_class_const( | |
3308 | const bt_field_class *field_class); | |
3309 | ||
3310 | /*! @} */ | |
3311 | ||
3312 | /*! | |
3313 | @name Option field class without a selector field | |
3314 | @{ | |
3315 | */ | |
3316 | ||
3317 | /*! | |
3318 | @brief | |
3319 | Creates an \bt_opt_fc (without a selector field) having the optional | |
3320 | field class \bt_p{optional_field_class} from the trace class | |
3321 | \bt_p{trace_class}. | |
3322 | ||
3323 | On success, the returned option field class has the following property | |
3324 | values: | |
3325 | ||
3326 | <table> | |
3327 | <tr> | |
3328 | <th>Property | |
3329 | <th>Value | |
3330 | <tr> | |
3331 | <td>\ref api-tir-fc-opt-prop-fc "Optional field class" | |
3332 | <td>\bt_p{optional_field_class} | |
3333 | <tr> | |
3334 | <td>\ref api-tir-fc-prop-user-attrs "User attributes" | |
3335 | <td>Empty \bt_map_val | |
3336 | </table> | |
3337 | ||
3338 | @param[in] trace_class | |
3339 | Trace class from which to create an option field class. | |
3340 | @param[in] optional_field_class | |
3341 | Class of the optional fields of the instances of the option field | |
3342 | class to create. | |
3343 | ||
3344 | @returns | |
3345 | New option field class reference, or \c NULL on memory error. | |
3346 | ||
3347 | @bt_pre_not_null{trace_class} | |
3348 | @bt_pre_not_null{optional_field_class} | |
3349 | @bt_pre_fc_not_in_tc{optional_field_class} | |
3350 | ||
3351 | @bt_post_success_frozen{optional_field_class} | |
3352 | */ | |
3353 | extern bt_field_class *bt_field_class_option_without_selector_create( | |
3354 | bt_trace_class *trace_class, | |
3355 | bt_field_class *optional_field_class); | |
3356 | ||
3357 | /*! @} */ | |
3358 | ||
3359 | /*! | |
3360 | @name Option field class with a selector field | |
3361 | @{ | |
3362 | */ | |
3363 | ||
3364 | /*! | |
3365 | @brief | |
3366 | Borrows the selector field path from the \bt_opt_fc (with a selector | |
3367 | field) \bt_p{field_class}. | |
3368 | ||
3369 | See the \ref api-tir-fc-opt-prop-sel-fp "selector field path" property. | |
3370 | ||
3371 | This property is only available when a \bt_struct_fc containing | |
3372 | (recursively) \bt_p{field_class} is passed to one of: | |
3373 | ||
3374 | - bt_stream_class_set_packet_context_field_class() | |
3375 | - bt_stream_class_set_event_common_context_field_class() | |
3376 | - bt_event_class_set_specific_context_field_class() | |
3377 | - bt_event_class_set_payload_field_class() | |
3378 | ||
3379 | In the meantime, this function returns \c NULL. | |
3380 | ||
3381 | @param[in] field_class | |
3382 | Option field class from which to borrow the selector field path. | |
3383 | ||
3384 | @returns | |
3385 | Selector field path of \bt_p{field_class}. | |
3386 | ||
3387 | @bt_pre_not_null{field_class} | |
3388 | @bt_pre_is_opt_ws_fc{field_class} | |
3389 | */ | |
3390 | extern const bt_field_path * | |
3391 | bt_field_class_option_with_selector_field_borrow_selector_field_path_const( | |
3392 | const bt_field_class *field_class); | |
3393 | ||
3394 | /*! @} */ | |
3395 | ||
3396 | /*! | |
3397 | @name Option field class with a boolean selector field | |
3398 | @{ | |
3399 | */ | |
3400 | ||
3401 | /*! | |
3402 | @brief | |
3403 | Creates an \bt_opt_fc (with a boolean selector field) having the | |
3404 | optional field class \bt_p{optional_field_class} from the trace | |
3405 | class \bt_p{trace_class}. | |
3406 | ||
3407 | On success, the returned option field class has the following property | |
3408 | values: | |
3409 | ||
3410 | <table> | |
3411 | <tr> | |
3412 | <th>Property | |
3413 | <th>Value | |
3414 | <tr> | |
3415 | <td>\ref api-tir-fc-opt-prop-fc "Optional field class" | |
3416 | <td>\bt_p{optional_field_class} | |
3417 | <tr> | |
3418 | <td>\ref api-tir-fc-opt-prop-sel-fp "Selector field path" | |
3419 | <td> | |
3420 | \em None (this property becomes available when the returned field | |
3421 | class becomes part of an \bt_ev_cls or of a \bt_stream_cls) | |
3422 | <tr> | |
3423 | <td>\ref api-tir-fc-opt-prop-sel-rev "Selector is reversed?" | |
3424 | <td>#BT_FALSE | |
3425 | <tr> | |
3426 | <td>\ref api-tir-fc-prop-user-attrs "User attributes" | |
3427 | <td>Empty \bt_map_val | |
3428 | </table> | |
3429 | ||
3430 | @param[in] trace_class | |
3431 | Trace class from which to create an option field class. | |
3432 | @param[in] optional_field_class | |
3433 | Class of the optional fields of the instances of the option field | |
3434 | class to create. | |
3435 | @param[in] selector_field_class | |
3436 | Linked selector field class of the option field class to create. | |
3437 | ||
3438 | @returns | |
3439 | New option field class reference, or \c NULL on memory error. | |
3440 | ||
3441 | @bt_pre_not_null{trace_class} | |
3442 | @bt_pre_not_null{optional_field_class} | |
3443 | @bt_pre_fc_not_in_tc{optional_field_class} | |
3444 | @bt_pre_not_null{selector_field_class} | |
3445 | @pre | |
3446 | \bt_p{selector_field_class} is a \bt_bool_fc. | |
3447 | ||
3448 | @bt_post_success_frozen{optional_field_class} | |
3449 | @bt_post_success_frozen{selector_field_class} | |
3450 | */ | |
3451 | extern bt_field_class *bt_field_class_option_with_selector_field_bool_create( | |
3452 | bt_trace_class *trace_class, | |
3453 | bt_field_class *optional_field_class, | |
3454 | bt_field_class *selector_field_class); | |
3455 | ||
3456 | /*! | |
3457 | @brief | |
3458 | Sets whether or not the selector of the \bt_opt_fc (with a boolean | |
3459 | selector field) \bt_p{field_class} is reversed. | |
3460 | ||
3461 | See the \ref api-tir-fc-opt-prop-sel-rev "selector is reversed?" | |
3462 | property. | |
3463 | ||
3464 | @param[in] field_class | |
3465 | Option field class of which to set whether or not its selector | |
3466 | is reversed. | |
3467 | @param[in] selector_is_reversed | |
3468 | #BT_TRUE to make \bt_p{field_class} have a reversed selector. | |
3469 | ||
3470 | @bt_pre_not_null{field_class} | |
3471 | @bt_pre_hot{field_class} | |
3472 | @bt_pre_is_opt_wbs_fc{field_class} | |
3473 | ||
3474 | @sa bt_field_class_option_with_selector_field_bool_selector_is_reversed() — | |
3475 | Returns whether or not the selector of an option field class (with | |
3476 | a boolean selector field) is reversed. | |
3477 | */ | |
3478 | extern void | |
3479 | bt_field_class_option_with_selector_field_bool_set_selector_is_reversed( | |
3480 | bt_field_class *field_class, bt_bool selector_is_reversed); | |
3481 | ||
3482 | /*! | |
3483 | @brief | |
3484 | Returns whether or not the selector of the | |
3485 | \bt_opt_fc (with a boolean selector field) is reversed. | |
3486 | ||
3487 | See the \ref api-tir-fc-opt-prop-sel-rev "selector is reversed?" | |
3488 | property. | |
3489 | ||
3490 | @param[in] field_class | |
3491 | Option field class of which to get whether or not its selector is | |
3492 | reversed. | |
3493 | ||
3494 | @returns | |
3495 | #BT_TRUE if the selector of \bt_p{field_class} is reversed. | |
3496 | ||
3497 | @bt_pre_not_null{field_class} | |
3498 | @bt_pre_is_opt_wbs_fc{field_class} | |
3499 | ||
3500 | @sa bt_field_class_option_with_selector_field_bool_set_selector_is_reversed() — | |
3501 | Sets whether or not the selector of an option field class (with | |
3502 | a boolean selector field) is reversed. | |
3503 | */ | |
3504 | extern bt_bool | |
3505 | bt_field_class_option_with_selector_field_bool_selector_is_reversed( | |
3506 | const bt_field_class *field_class); | |
3507 | ||
3508 | /*! @} */ | |
3509 | ||
3510 | /*! | |
3511 | @name Option field class with an unsigned integer selector field | |
3512 | @{ | |
3513 | */ | |
3514 | ||
3515 | /*! | |
3516 | @brief | |
3517 | Creates an \bt_opt_fc (with an unsigned integer selector field) | |
3518 | having the optional field class \bt_p{optional_field_class} from the | |
3519 | trace class \bt_p{trace_class}. | |
3520 | ||
3521 | On success, the returned option field class has the following property | |
3522 | values: | |
3523 | ||
3524 | <table> | |
3525 | <tr> | |
3526 | <th>Property | |
3527 | <th>Value | |
3528 | <tr> | |
3529 | <td>\ref api-tir-fc-opt-prop-fc "Optional field class" | |
3530 | <td>\bt_p{optional_field_class} | |
3531 | <tr> | |
3532 | <td>\ref api-tir-fc-opt-prop-sel-fp "Selector field path" | |
3533 | <td> | |
3534 | \em None (this property becomes available when the returned field | |
3535 | class becomes part of an \bt_ev_cls or of a \bt_stream_cls) | |
3536 | <tr> | |
3537 | <td>\ref api-tir-fc-opt-prop-uint-rs "Selector's unsigned integer ranges" | |
3538 | <td>\bt_p{ranges} | |
3539 | <tr> | |
3540 | <td>\ref api-tir-fc-prop-user-attrs "User attributes" | |
3541 | <td>Empty \bt_map_val | |
3542 | </table> | |
3543 | ||
3544 | @param[in] trace_class | |
3545 | Trace class from which to create an option field class. | |
3546 | @param[in] optional_field_class | |
3547 | Class of the optional fields of the instances of the option field | |
3548 | class to create. | |
3549 | @param[in] selector_field_class | |
3550 | Linked selector field class of the option field class to create. | |
3551 | @param[in] ranges | |
3552 | Selector's unsigned integer ranges of the option field class to | |
3553 | create. | |
3554 | ||
3555 | @returns | |
3556 | New option field class reference, or \c NULL on memory error. | |
3557 | ||
3558 | @bt_pre_not_null{trace_class} | |
3559 | @bt_pre_not_null{optional_field_class} | |
3560 | @bt_pre_fc_not_in_tc{optional_field_class} | |
3561 | @bt_pre_not_null{selector_field_class} | |
3562 | @pre | |
3563 | \bt_p{selector_field_class} is a \bt_uint_fc. | |
3564 | @bt_pre_not_null{ranges} | |
3565 | @pre | |
3566 | \bt_p{ranges} contains one or more \bt_p_uint_rg. | |
3567 | ||
3568 | @bt_post_success_frozen{optional_field_class} | |
3569 | @bt_post_success_frozen{selector_field_class} | |
3570 | @bt_post_success_frozen{ranges} | |
3571 | */ | |
3572 | extern bt_field_class * | |
3573 | bt_field_class_option_with_selector_field_integer_unsigned_create( | |
3574 | bt_trace_class *trace_class, | |
3575 | bt_field_class *optional_field_class, | |
3576 | bt_field_class *selector_field_class, | |
3577 | const bt_integer_range_set_unsigned *ranges); | |
3578 | ||
3579 | /*! | |
3580 | @brief | |
3581 | Borrows the \bt_p_uint_rg from the \bt_opt_fc (with an unsigned | |
3582 | integer selector field) \bt_p{field_class}. | |
3583 | ||
3584 | See the | |
3585 | \ref api-tir-fc-opt-prop-uint-rs "selector's unsigned integer ranges" | |
3586 | property. | |
3587 | ||
3588 | @param[in] field_class | |
3589 | Option field class from which to borrow the unsigned integer ranges. | |
3590 | ||
3591 | @returns | |
3592 | Unsigned integer ranges of \bt_p{field_class}. | |
3593 | ||
3594 | @bt_pre_not_null{field_class} | |
3595 | @bt_pre_is_opt_wuis_fc{field_class} | |
3596 | */ | |
3597 | extern const bt_integer_range_set_unsigned * | |
3598 | bt_field_class_option_with_selector_field_integer_unsigned_borrow_selector_ranges_const( | |
3599 | const bt_field_class *field_class); | |
3600 | ||
3601 | /*! @} */ | |
3602 | ||
3603 | /*! | |
3604 | @name Option field class with a signed integer selector field | |
3605 | @{ | |
3606 | */ | |
3607 | ||
3608 | /*! | |
3609 | @brief | |
3610 | Creates an \bt_opt_fc (with a signed integer selector field) | |
3611 | having the optional field class \bt_p{optional_field_class} from the | |
3612 | trace class \bt_p{trace_class}. | |
3613 | ||
3614 | On success, the returned option field class has the following property | |
3615 | values: | |
3616 | ||
3617 | <table> | |
3618 | <tr> | |
3619 | <th>Property | |
3620 | <th>Value | |
3621 | <tr> | |
3622 | <td>\ref api-tir-fc-opt-prop-fc "Optional field class" | |
3623 | <td>\bt_p{optional_field_class} | |
3624 | <tr> | |
3625 | <td>\ref api-tir-fc-opt-prop-sel-fp "Selector field path" | |
3626 | <td> | |
3627 | \em None (this property becomes available when the returned field | |
3628 | class becomes part of an \bt_ev_cls or of a \bt_stream_cls) | |
3629 | <tr> | |
3630 | <td>\ref api-tir-fc-opt-prop-sint-rs "Selector's signed integer ranges" | |
3631 | <td>\bt_p{ranges} | |
3632 | <tr> | |
3633 | <td>\ref api-tir-fc-prop-user-attrs "User attributes" | |
3634 | <td>Empty \bt_map_val | |
3635 | </table> | |
3636 | ||
3637 | @param[in] trace_class | |
3638 | Trace class from which to create an option field class. | |
3639 | @param[in] optional_field_class | |
3640 | Class of the optional fields of the instances of the option field | |
3641 | class to create. | |
3642 | @param[in] selector_field_class | |
3643 | Linked selector field class of the option field class to create. | |
3644 | @param[in] ranges | |
3645 | Selector's signed integer ranges of the option field class to | |
3646 | create. | |
3647 | ||
3648 | @returns | |
3649 | New option field class reference, or \c NULL on memory error. | |
3650 | ||
3651 | @bt_pre_not_null{trace_class} | |
3652 | @bt_pre_not_null{optional_field_class} | |
3653 | @bt_pre_fc_not_in_tc{optional_field_class} | |
3654 | @bt_pre_not_null{selector_field_class} | |
3655 | @pre | |
3656 | \bt_p{selector_field_class} is a \bt_uint_fc. | |
3657 | @bt_pre_not_null{ranges} | |
3658 | @pre | |
3659 | \bt_p{ranges} contains one or more \bt_p_uint_rg. | |
3660 | ||
3661 | @bt_post_success_frozen{optional_field_class} | |
3662 | @bt_post_success_frozen{selector_field_class} | |
3663 | @bt_post_success_frozen{ranges} | |
3664 | */ | |
3665 | extern bt_field_class * | |
3666 | bt_field_class_option_with_selector_field_integer_signed_create( | |
3667 | bt_trace_class *trace_class, | |
3668 | bt_field_class *optional_field_class, | |
3669 | bt_field_class *selector_field_class, | |
3670 | const bt_integer_range_set_signed *ranges); | |
3671 | ||
3672 | /*! | |
3673 | @brief | |
3674 | Borrows the \bt_p_sint_rg from the \bt_opt_fc (with a signed | |
3675 | integer selector field) \bt_p{field_class}. | |
c6962c96 | 3676 | |
43c59509 PP |
3677 | See the |
3678 | \ref api-tir-fc-opt-prop-sint-rs "selector's signed integer ranges" | |
3679 | property. | |
5cebbe7f | 3680 | |
43c59509 PP |
3681 | @param[in] field_class |
3682 | Option field class from which to borrow the signed integer ranges. | |
1094efa4 | 3683 | |
43c59509 PP |
3684 | @returns |
3685 | Signed integer ranges of \bt_p{field_class}. | |
5cd6d0e5 | 3686 | |
43c59509 PP |
3687 | @bt_pre_not_null{field_class} |
3688 | @bt_pre_is_opt_wsis_fc{field_class} | |
3689 | */ | |
3690 | extern const bt_integer_range_set_signed * | |
3691 | bt_field_class_option_with_selector_field_integer_signed_borrow_selector_ranges_const( | |
3692 | const bt_field_class *field_class); | |
40f4ba76 | 3693 | |
43c59509 | 3694 | /*! @} */ |
40f4ba76 | 3695 | |
43c59509 PP |
3696 | /*! |
3697 | @name Variant field class | |
3698 | @{ | |
3699 | */ | |
40f4ba76 | 3700 | |
43c59509 PP |
3701 | /*! |
3702 | @brief | |
3703 | Creates a \bt_var_fc from the trace class \bt_p{trace_class}. | |
40f4ba76 | 3704 | |
43c59509 PP |
3705 | If \bt_p{selector_field_class} is not \c NULL, then the created variant |
3706 | field class has a linked selector field class. | |
3707 | See | |
3708 | \ref api-tir-fc-link "Field classes with links to other field classes" | |
3709 | to learn more. | |
40f4ba76 | 3710 | |
43c59509 PP |
3711 | On success, the returned variant field class has the following |
3712 | property values: | |
40f4ba76 | 3713 | |
43c59509 PP |
3714 | <table> |
3715 | <tr> | |
3716 | <th>Property | |
3717 | <th>Value | |
3718 | <tr> | |
3719 | <td>\ref api-tir-fc-var-prop-sel-fp "Selector field path" | |
3720 | <td> | |
3721 | \em None (if \bt_p{selector_field_class} is not \c NULL, this | |
3722 | property becomes available when the returned field class becomes | |
3723 | part of an \bt_ev_cls or of a \bt_stream_cls) | |
3724 | <tr> | |
3725 | <td>\ref api-tir-fc-var-prop-opts "Options" | |
3726 | <td>\em None | |
3727 | <tr> | |
3728 | <td>\ref api-tir-fc-prop-user-attrs "User attributes" | |
3729 | <td>Empty \bt_map_val | |
3730 | </table> | |
40f4ba76 | 3731 | |
43c59509 PP |
3732 | @param[in] trace_class |
3733 | Trace class from which to create a variant field class. | |
3734 | @param[in] selector_field_class | |
3735 | @parblock | |
3736 | Linked selector field class of the variant field class to create. | |
d24d5663 | 3737 | |
43c59509 PP |
3738 | Can be \c NULL. |
3739 | @endparblock | |
40f4ba76 | 3740 | |
43c59509 PP |
3741 | @returns |
3742 | New variant field class reference, or \c NULL on memory error. | |
40f4ba76 | 3743 | |
43c59509 PP |
3744 | @bt_pre_not_null{trace_class} |
3745 | @pre | |
3746 | <strong>If \bt_p{selector_field_class} is not \c NULL</strong>, | |
3747 | \bt_p{selector_field_class} is an \bt_int_fc. | |
40f4ba76 | 3748 | |
43c59509 PP |
3749 | @bt_post_success_frozen{element_field_class} |
3750 | @bt_post_success_frozen{selector_field_class} | |
3751 | */ | |
3752 | extern bt_field_class *bt_field_class_variant_create( | |
3753 | bt_trace_class *trace_class, | |
3754 | bt_field_class *selector_field_class); | |
40f4ba76 | 3755 | |
43c59509 PP |
3756 | /*! |
3757 | @brief | |
3758 | Returns the number of options contained in the \bt_var_fc | |
3759 | \bt_p{field_class}. | |
d24d5663 | 3760 | |
43c59509 | 3761 | See the \ref api-tir-fc-var-prop-opts "options" property. |
40f4ba76 | 3762 | |
43c59509 PP |
3763 | @param[in] field_class |
3764 | Variant field class of which to get the number of contained | |
3765 | options. | |
3766 | ||
3767 | @returns | |
3768 | Number of contained options in \bt_p{field_class}. | |
3769 | ||
3770 | @bt_pre_not_null{field_class} | |
3771 | @bt_pre_is_var_fc{field_class} | |
3772 | */ | |
3773 | extern uint64_t bt_field_class_variant_get_option_count( | |
3774 | const bt_field_class *field_class); | |
3775 | ||
3776 | /*! | |
3777 | @brief | |
3778 | Borrows the option at index \bt_p{index} from the | |
3779 | \bt_var_fc \bt_p{field_class}. | |
3780 | ||
3781 | See the \ref api-tir-fc-var-prop-opts "options" property. | |
3782 | ||
3783 | @param[in] field_class | |
3784 | Variant field class from which to borrow the option at | |
3785 | index \bt_p{index}. | |
3786 | @param[in] index | |
3787 | Index of the option to borrow from \bt_p{field_class}. | |
3788 | ||
3789 | @returns | |
3790 | @parblock | |
3791 | \em Borrowed reference of the option of | |
3792 | \bt_p{field_class} at index \bt_p{index}. | |
3793 | ||
3794 | The returned pointer remains valid as long as \bt_p{field_class} | |
3795 | is not modified. | |
3796 | @endparblock | |
3797 | ||
3798 | @bt_pre_not_null{field_class} | |
3799 | @bt_pre_is_var_fc{field_class} | |
3800 | @pre | |
3801 | \bt_p{index} is less than the number of options in | |
3802 | \bt_p{field_class} (as returned by | |
3803 | bt_field_class_variant_get_option_count()). | |
3804 | ||
3805 | @sa bt_field_class_variant_get_option_count() — | |
3806 | Returns the number of options contained in a variant field class. | |
3807 | @sa bt_field_class_variant_borrow_option_by_index_const() — | |
3808 | \c const version of this function. | |
3809 | */ | |
3810 | extern bt_field_class_variant_option * | |
3811 | bt_field_class_variant_borrow_option_by_index( | |
1e6fd1d7 | 3812 | bt_field_class *field_class, uint64_t index); |
740faaf4 | 3813 | |
43c59509 PP |
3814 | /*! |
3815 | @brief | |
3816 | Borrows the option at index \bt_p{index} from the | |
3817 | \bt_var_fc \bt_p{field_class} (\c const version). | |
3818 | ||
3819 | See bt_field_class_variant_borrow_option_by_index(). | |
3820 | */ | |
3821 | extern const bt_field_class_variant_option * | |
3822 | bt_field_class_variant_borrow_option_by_index_const( | |
3823 | const bt_field_class *field_class, uint64_t index); | |
3824 | ||
3825 | /*! | |
3826 | @brief | |
3827 | Borrows the option having the name \bt_p{name} from the | |
3828 | \bt_var_fc \bt_p{field_class}. | |
3829 | ||
3830 | See the \ref api-tir-fc-var-prop-opts "options" property. | |
3831 | ||
3832 | If there's no option having the name \bt_p{name} in | |
3833 | \bt_p{field_class}, this function returns \c NULL. | |
3834 | ||
3835 | @param[in] field_class | |
3836 | Variant field class from which to borrow the option having the | |
3837 | name \bt_p{name}. | |
3838 | @param[in] name | |
3839 | Name of the option to borrow from \bt_p{field_class}. | |
3840 | ||
3841 | @returns | |
3842 | @parblock | |
3843 | \em Borrowed reference of the option of | |
3844 | \bt_p{field_class} having the name \bt_p{name}, or \c NULL | |
3845 | if none. | |
3846 | ||
3847 | The returned pointer remains valid as long as \bt_p{field_class} | |
3848 | is not modified. | |
3849 | @endparblock | |
3850 | ||
3851 | @bt_pre_not_null{field_class} | |
3852 | @bt_pre_is_var_fc{field_class} | |
3853 | @bt_pre_not_null{name} | |
3854 | ||
3855 | @sa bt_field_class_variant_borrow_option_by_name_const() — | |
3856 | \c const version of this function. | |
3857 | */ | |
3858 | extern bt_field_class_variant_option * | |
3859 | bt_field_class_variant_borrow_option_by_name( | |
740faaf4 PP |
3860 | bt_field_class *field_class, const char *name); |
3861 | ||
43c59509 PP |
3862 | /*! |
3863 | @brief | |
3864 | Borrows the option having the name \bt_p{name} from the | |
3865 | \bt_var_fc \bt_p{field_class} (\c const version). | |
bcd7ef6f | 3866 | |
43c59509 PP |
3867 | See bt_field_class_variant_borrow_option_by_name(). |
3868 | */ | |
3869 | extern const bt_field_class_variant_option * | |
3870 | bt_field_class_variant_borrow_option_by_name_const( | |
3871 | const bt_field_class *field_class, const char *name); | |
c6962c96 | 3872 | |
43c59509 PP |
3873 | /*! @} */ |
3874 | ||
3875 | /*! | |
3876 | @name Variant field class option | |
3877 | @{ | |
3878 | */ | |
3879 | ||
3880 | /*! | |
3881 | @typedef struct bt_field_class_variant_option bt_field_class_variant_option; | |
3882 | ||
3883 | @brief | |
3884 | Variant field class option. | |
3885 | */ | |
3886 | ||
3887 | /*! | |
3888 | @brief | |
3889 | Returns the name of the \bt_var_fc option \bt_p{option}. | |
3890 | ||
3891 | See the \ref api-tir-fc-var-prop-opts "options" property. | |
3892 | ||
3893 | @param[in] option | |
3894 | Variant field class option of which to get the name. | |
3895 | ||
3896 | @returns | |
3897 | @parblock | |
3898 | Name of \bt_p{option}. | |
3899 | ||
3900 | The returned pointer remains valid as long as \bt_p{option} exists. | |
3901 | @endparblock | |
3902 | ||
3903 | @bt_pre_not_null{option} | |
3904 | */ | |
3905 | extern const char *bt_field_class_variant_option_get_name( | |
3906 | const bt_field_class_variant_option *option); | |
3907 | ||
3908 | /*! | |
3909 | @brief | |
3910 | Borrows the field class from the \bt_var_fc option | |
3911 | \bt_p{option}. | |
3912 | ||
3913 | See the \ref api-tir-fc-var-prop-opts "options" property. | |
3914 | ||
3915 | @param[in] option | |
3916 | Variant field class option from which to borrow the field class. | |
3917 | ||
3918 | @returns | |
3919 | Field class of \bt_p{option}. | |
3920 | ||
3921 | @bt_pre_not_null{option} | |
3922 | ||
3923 | @sa bt_field_class_variant_option_borrow_field_class_const() — | |
3924 | \c const version of this function. | |
3925 | */ | |
3926 | extern bt_field_class *bt_field_class_variant_option_borrow_field_class( | |
3927 | bt_field_class_variant_option *option); | |
3928 | ||
3929 | /*! | |
3930 | @brief | |
3931 | Borrows the field class from the \bt_var_fc option | |
3932 | \bt_p{option} (\c const version). | |
3933 | ||
3934 | See bt_field_class_variant_option_borrow_field_class(). | |
3935 | */ | |
3936 | extern const bt_field_class * | |
3937 | bt_field_class_variant_option_borrow_field_class_const( | |
3938 | const bt_field_class_variant_option *option); | |
3939 | ||
3940 | /*! | |
3941 | @brief | |
3942 | Sets the user attributes of the \bt_var_fc option \bt_p{option} | |
3943 | to \bt_p{user_attributes}. | |
3944 | ||
3945 | See the \ref api-tir-fc-var-prop-opts "options" property. | |
3946 | ||
3947 | @note | |
3948 | When you append an option to a variant field class with | |
3949 | bt_field_class_variant_without_selector_append_option(), | |
3950 | bt_field_class_variant_with_selector_field_integer_unsigned_append_option(), | |
3951 | or | |
3952 | bt_field_class_variant_with_selector_field_integer_signed_append_option(), | |
3953 | the option's initial user attributes is an empty \bt_map_val. | |
3954 | Therefore you can borrow it with | |
3955 | bt_field_class_variant_option_borrow_user_attributes() and fill it | |
3956 | directly instead of setting a new one with this function. | |
3957 | ||
3958 | @param[in] option | |
3959 | Variant field class option of which to set the user attributes to | |
3960 | \bt_p{user_attributes}. | |
3961 | @param[in] user_attributes | |
3962 | New user attributes of \bt_p{option}. | |
3963 | ||
3964 | @bt_pre_not_null{option} | |
3965 | @bt_pre_hot{option} | |
3966 | @bt_pre_not_null{user_attributes} | |
3967 | @bt_pre_is_map_val{user_attributes} | |
3968 | ||
3969 | @sa bt_field_class_variant_option_borrow_user_attributes() — | |
3970 | Borrows the user attributes of a variant field class option. | |
3971 | */ | |
3972 | extern void bt_field_class_variant_option_set_user_attributes( | |
3973 | bt_field_class_variant_option *option, | |
c6962c96 PP |
3974 | const bt_value *user_attributes); |
3975 | ||
43c59509 PP |
3976 | /*! |
3977 | @brief | |
3978 | Borrows the user attributes of the \bt_var_fc option \bt_p{option}. | |
40f4ba76 | 3979 | |
43c59509 | 3980 | See the \ref api-tir-fc-var-prop-opts "options" property. |
40f4ba76 | 3981 | |
43c59509 PP |
3982 | @note |
3983 | When you append an option to a variant field class with | |
3984 | bt_field_class_variant_without_selector_append_option(), | |
3985 | bt_field_class_variant_with_selector_field_integer_unsigned_append_option(), | |
3986 | or | |
3987 | bt_field_class_variant_with_selector_field_integer_signed_append_option(), | |
3988 | the option's initial user attributes is an empty \bt_map_val. | |
740faaf4 | 3989 | |
43c59509 PP |
3990 | @param[in] option |
3991 | Variant field class option from which to borrow the user | |
3992 | attributes. | |
0aa006b7 | 3993 | |
43c59509 PP |
3994 | @returns |
3995 | User attributes of \bt_p{option} (a \bt_map_val). | |
b38aea74 | 3996 | |
43c59509 | 3997 | @bt_pre_not_null{option} |
0aa006b7 | 3998 | |
43c59509 PP |
3999 | @sa bt_field_class_variant_option_set_user_attributes() — |
4000 | Sets the user attributes of a variant field class option. | |
4001 | @sa bt_field_class_variant_option_borrow_user_attributes_const() — | |
4002 | \c const version of this function. | |
4003 | */ | |
4004 | extern bt_value *bt_field_class_variant_option_borrow_user_attributes( | |
4005 | bt_field_class_variant_option *option); | |
0aa006b7 | 4006 | |
43c59509 PP |
4007 | /*! |
4008 | @brief | |
4009 | Borrows the user attributes of the \bt_var_fc option \bt_p{option} | |
4010 | (\c const version). | |
0aa006b7 | 4011 | |
43c59509 PP |
4012 | See bt_field_class_variant_option_borrow_user_attributes(). |
4013 | */ | |
4014 | extern const bt_value *bt_field_class_variant_option_borrow_user_attributes_const( | |
4015 | const bt_field_class_variant_option *option); | |
bcd7ef6f | 4016 | |
43c59509 PP |
4017 | /*! @} */ |
4018 | ||
4019 | /*! | |
4020 | @name Variant field class without a selector field | |
4021 | @{ | |
4022 | */ | |
40f4ba76 | 4023 | |
43c59509 PP |
4024 | /*! |
4025 | @brief | |
4026 | Status codes for | |
4027 | bt_field_class_variant_without_selector_append_option(). | |
4028 | */ | |
45c51519 | 4029 | typedef enum bt_field_class_variant_without_selector_append_option_status { |
43c59509 PP |
4030 | /*! |
4031 | @brief | |
4032 | Success. | |
4033 | */ | |
de821fe5 | 4034 | BT_FIELD_CLASS_VARIANT_WITHOUT_SELECTOR_FIELD_APPEND_OPTION_STATUS_OK = __BT_FUNC_STATUS_OK, |
43c59509 PP |
4035 | |
4036 | /*! | |
4037 | @brief | |
4038 | Out of memory. | |
4039 | */ | |
4040 | BT_FIELD_CLASS_VARIANT_WITHOUT_SELECTOR_FIELD_APPEND_OPTION_STATUS_MEMORY_ERROR = __BT_FUNC_STATUS_MEMORY_ERROR, | |
45c51519 | 4041 | } bt_field_class_variant_without_selector_append_option_status; |
d24d5663 | 4042 | |
43c59509 PP |
4043 | /*! |
4044 | @brief | |
4045 | Appends an option to the \bt_var_fc (without a selector field) | |
4046 | \bt_p{field_class} having the name \bt_p{name} and the | |
4047 | field class \bt_p{option_field_class}. | |
4048 | ||
4049 | See the \ref api-tir-fc-var-prop-opts "options" property. | |
4050 | ||
4051 | @param[in] field_class | |
4052 | Variant field class to which to append an option having | |
4053 | the name \bt_p{name} and the field class \bt_p{option_field_class}. | |
4054 | @param[in] name | |
4055 | Name of the option to append to \bt_p{field_class} (copied). | |
4056 | @param[in] option_field_class | |
4057 | Field class of the option to append to \bt_p{field_class}. | |
4058 | ||
4059 | @retval #BT_FIELD_CLASS_VARIANT_WITHOUT_SELECTOR_FIELD_APPEND_OPTION_STATUS_OK | |
4060 | Success. | |
4061 | @retval #BT_FIELD_CLASS_VARIANT_WITHOUT_SELECTOR_FIELD_APPEND_OPTION_STATUS_MEMORY_ERROR | |
4062 | Out of memory. | |
4063 | ||
4064 | @bt_pre_not_null{field_class} | |
4065 | @bt_pre_hot{field_class} | |
4066 | @bt_pre_is_var_wos_fc{field_class} | |
4067 | @pre | |
4068 | \bt_p{field_class} has no option with the name \bt_p{name}. | |
4069 | @bt_pre_not_null{name} | |
4070 | @bt_pre_not_null{option_field_class} | |
4071 | @bt_pre_fc_not_in_tc{option_field_class} | |
4072 | ||
4073 | @bt_post_success_frozen{option_field_class} | |
4074 | */ | |
45c51519 PP |
4075 | extern bt_field_class_variant_without_selector_append_option_status |
4076 | bt_field_class_variant_without_selector_append_option( | |
43c59509 PP |
4077 | bt_field_class *field_class, const char *name, |
4078 | bt_field_class *option_field_class); | |
4079 | ||
4080 | /*! @} */ | |
5cd6d0e5 | 4081 | |
43c59509 PP |
4082 | /*! |
4083 | @name Variant field class with a selector field | |
4084 | @{ | |
4085 | */ | |
4086 | ||
4087 | /*! | |
4088 | @brief | |
4089 | Status codes for | |
4090 | bt_field_class_variant_with_selector_field_integer_unsigned_append_option() | |
4091 | and | |
4092 | bt_field_class_variant_with_selector_field_integer_signed_append_option(). | |
4093 | */ | |
de821fe5 | 4094 | typedef enum bt_field_class_variant_with_selector_field_integer_append_option_status { |
43c59509 PP |
4095 | /*! |
4096 | @brief | |
4097 | Success. | |
4098 | */ | |
de821fe5 | 4099 | BT_FIELD_CLASS_VARIANT_WITH_SELECTOR_FIELD_APPEND_OPTION_STATUS_OK = __BT_FUNC_STATUS_OK, |
43c59509 PP |
4100 | |
4101 | /*! | |
4102 | @brief | |
4103 | Out of memory. | |
4104 | */ | |
4105 | BT_FIELD_CLASS_VARIANT_WITH_SELECTOR_FIELD_APPEND_OPTION_STATUS_MEMORY_ERROR = __BT_FUNC_STATUS_MEMORY_ERROR, | |
de821fe5 | 4106 | } bt_field_class_variant_with_selector_field_integer_append_option_status; |
740faaf4 | 4107 | |
43c59509 PP |
4108 | /*! |
4109 | @brief | |
4110 | Borrows the selector field path from the \bt_var_fc (with a selector | |
4111 | field) \bt_p{field_class}. | |
4112 | ||
4113 | See the \ref api-tir-fc-var-prop-sel-fp "selector field path" property. | |
4114 | ||
4115 | This property is only available when a \bt_struct_fc containing | |
4116 | (recursively) \bt_p{field_class} is passed to one of: | |
4117 | ||
4118 | - bt_stream_class_set_packet_context_field_class() | |
4119 | - bt_stream_class_set_event_common_context_field_class() | |
4120 | - bt_event_class_set_specific_context_field_class() | |
4121 | - bt_event_class_set_payload_field_class() | |
4122 | ||
4123 | In the meantime, this function returns \c NULL. | |
4124 | ||
4125 | @param[in] field_class | |
4126 | Variant field class from which to borrow the selector field path. | |
4127 | ||
4128 | @returns | |
4129 | Selector field path of \bt_p{field_class}. | |
4130 | ||
4131 | @bt_pre_not_null{field_class} | |
4132 | @bt_pre_is_var_ws_fc{field_class} | |
4133 | */ | |
4134 | extern const bt_field_path * | |
4135 | bt_field_class_variant_with_selector_field_borrow_selector_field_path_const( | |
4136 | const bt_field_class *field_class); | |
4137 | ||
4138 | /*! @} */ | |
4139 | ||
4140 | /*! | |
4141 | @name Variant field class with an unsigned integer selector field | |
4142 | @{ | |
4143 | */ | |
4144 | ||
4145 | /*! | |
4146 | @brief | |
4147 | Appends an option to the \bt_var_fc (with an unsigned integer | |
4148 | selector field) \bt_p{field_class} having the name \bt_p{name}, | |
4149 | the field class \bt_p{option_field_class}, and the | |
4150 | \bt_p_uint_rg \bt_p{ranges}. | |
4151 | ||
4152 | See the \ref api-tir-fc-var-prop-opts "options" property. | |
4153 | ||
4154 | @param[in] field_class | |
4155 | Variant field class to which to append an option having | |
4156 | the name \bt_p{name}, the field class \bt_p{option_field_class}, | |
4157 | and the unsigned integer ranges \bt_p{ranges}. | |
4158 | @param[in] name | |
4159 | Name of the option to append to \bt_p{field_class} (copied). | |
4160 | @param[in] option_field_class | |
4161 | Field class of the option to append to \bt_p{field_class}. | |
4162 | @param[in] ranges | |
4163 | Unsigned integer ranges of the option to append to | |
4164 | \bt_p{field_class}. | |
4165 | ||
4166 | @retval #BT_FIELD_CLASS_VARIANT_WITH_SELECTOR_FIELD_APPEND_OPTION_STATUS_OK | |
4167 | Success. | |
4168 | @retval #BT_FIELD_CLASS_VARIANT_WITH_SELECTOR_FIELD_APPEND_OPTION_STATUS_MEMORY_ERROR | |
4169 | Out of memory. | |
4170 | ||
4171 | @bt_pre_not_null{field_class} | |
4172 | @bt_pre_hot{field_class} | |
4173 | @bt_pre_is_var_wuis_fc{field_class} | |
4174 | @pre | |
4175 | \bt_p{field_class} has no option with the name \bt_p{name}. | |
4176 | @bt_pre_not_null{name} | |
4177 | @bt_pre_not_null{option_field_class} | |
4178 | @bt_pre_fc_not_in_tc{option_field_class} | |
4179 | @bt_pre_not_null{Å—anges} | |
4180 | @pre | |
4181 | \bt_p{ranges} contains one or more unsigned integer ranges. | |
4182 | @pre | |
4183 | The unsigned integer ranges in \bt_p{ranges} do not overlap | |
4184 | any unsigned integer range of any existing option in | |
4185 | \bt_p{field_class}. | |
4186 | ||
4187 | @bt_post_success_frozen{option_field_class} | |
4188 | */ | |
de821fe5 PP |
4189 | extern bt_field_class_variant_with_selector_field_integer_append_option_status |
4190 | bt_field_class_variant_with_selector_field_integer_unsigned_append_option( | |
43c59509 PP |
4191 | bt_field_class *field_class, const char *name, |
4192 | bt_field_class *option_field_class, | |
4193 | const bt_integer_range_set_unsigned *ranges); | |
4194 | ||
4195 | /*! | |
4196 | @brief | |
4197 | Borrows the option at index \bt_p{index} from the | |
4198 | \bt_var_fc (with an unsigned integer selector field) | |
4199 | \bt_p{field_class}. | |
4200 | ||
4201 | See the \ref api-tir-fc-var-prop-opts "options" property. | |
4202 | ||
4203 | @param[in] field_class | |
4204 | Variant field class from which to borrow the option at | |
4205 | index \bt_p{index}. | |
4206 | @param[in] index | |
4207 | Index of the option to borrow from \bt_p{field_class}. | |
4208 | ||
4209 | @returns | |
4210 | @parblock | |
4211 | \em Borrowed reference of the option of | |
4212 | \bt_p{field_class} at index \bt_p{index}. | |
4213 | ||
4214 | The returned pointer remains valid as long as \bt_p{field_class} | |
4215 | is not modified. | |
4216 | @endparblock | |
4217 | ||
4218 | @bt_pre_not_null{field_class} | |
4219 | @bt_pre_is_var_wuis_fc{field_class} | |
4220 | @pre | |
4221 | \bt_p{index} is less than the number of options in | |
4222 | \bt_p{field_class} (as returned by | |
4223 | bt_field_class_variant_get_option_count()). | |
4224 | ||
4225 | @sa bt_field_class_variant_get_option_count() — | |
4226 | Returns the number of options contained in a variant field class. | |
4227 | */ | |
4228 | extern const bt_field_class_variant_with_selector_field_integer_unsigned_option * | |
4229 | bt_field_class_variant_with_selector_field_integer_unsigned_borrow_option_by_index_const( | |
4230 | const bt_field_class *field_class, uint64_t index); | |
4231 | ||
4232 | /*! | |
4233 | @brief | |
4234 | Borrows the option having the name \bt_p{name} from the | |
4235 | \bt_var_fc (with an unsigned integer selector field) | |
4236 | \bt_p{field_class}. | |
4237 | ||
4238 | See the \ref api-tir-fc-var-prop-opts "options" property. | |
4239 | ||
4240 | If there's no option having the name \bt_p{name} in | |
4241 | \bt_p{field_class}, this function returns \c NULL. | |
4242 | ||
4243 | @param[in] field_class | |
4244 | Variant field class from which to borrow the option having the | |
4245 | name \bt_p{name}. | |
4246 | @param[in] name | |
4247 | Name of the option to borrow from \bt_p{field_class}. | |
4248 | ||
4249 | @returns | |
4250 | @parblock | |
4251 | \em Borrowed reference of the option of | |
4252 | \bt_p{field_class} having the name \bt_p{name}, or \c NULL | |
4253 | if none. | |
4254 | ||
4255 | The returned pointer remains valid as long as \bt_p{field_class} | |
4256 | is not modified. | |
4257 | @endparblock | |
4258 | ||
4259 | @bt_pre_not_null{field_class} | |
4260 | @bt_pre_is_var_wuis_fc{field_class} | |
4261 | @bt_pre_not_null{name} | |
4262 | ||
4263 | @sa bt_field_class_variant_borrow_option_by_name_const() — | |
4264 | Borrows an option by name from a variant field class. | |
4265 | */ | |
4266 | extern const bt_field_class_variant_with_selector_field_integer_unsigned_option * | |
4267 | bt_field_class_variant_with_selector_field_integer_unsigned_borrow_option_by_name_const( | |
4268 | const bt_field_class *field_class, const char *name); | |
4269 | ||
4270 | /*! @} */ | |
4271 | ||
4272 | /*! | |
4273 | @name Variant field class (with an unsigned integer selector field) option | |
4274 | @{ | |
4275 | */ | |
4276 | ||
4277 | /*! | |
4278 | @typedef struct bt_field_class_variant_with_selector_field_integer_unsigned_option bt_field_class_variant_with_selector_field_integer_unsigned_option; | |
4279 | ||
4280 | @brief | |
4281 | Variant field class (with an unsigned integer selector field) option. | |
4282 | */ | |
4283 | ||
4284 | /*! | |
4285 | @brief | |
4286 | Borrows the \bt_p_uint_rg from the \bt_var_fc (with an unsigned | |
4287 | integer selector field) option \bt_p{option}. | |
4288 | ||
4289 | See the \ref api-tir-fc-var-prop-opts "options" property. | |
4290 | ||
4291 | @param[in] option | |
4292 | Variant field class option from which to borrow the | |
4293 | unsigned integer ranges. | |
4294 | ||
4295 | @returns | |
4296 | Unsigned integer ranges of \bt_p{option}. | |
4297 | ||
4298 | @bt_pre_not_null{option} | |
4299 | */ | |
4300 | extern const bt_integer_range_set_unsigned * | |
4301 | bt_field_class_variant_with_selector_field_integer_unsigned_option_borrow_ranges_const( | |
4302 | const bt_field_class_variant_with_selector_field_integer_unsigned_option *option); | |
4303 | ||
4304 | /*! | |
4305 | @brief | |
4306 | \ref api-fund-c-typing "Upcasts" the \bt_var_fc (with an | |
4307 | unsigned integer selector field) option \bt_p{option} to the | |
4308 | common #bt_field_class_variant_option type. | |
4309 | ||
4310 | See the \ref api-tir-fc-var-prop-opts "options" property. | |
4311 | ||
4312 | @param[in] option | |
4313 | @parblock | |
4314 | Variant field class option to upcast. | |
4315 | ||
4316 | Can be \c NULL. | |
4317 | @endparblock | |
4318 | ||
4319 | @returns | |
4320 | \bt_p{option} as a common variant field class option. | |
4321 | */ | |
4322 | static inline | |
4323 | const bt_field_class_variant_option * | |
4324 | bt_field_class_variant_with_selector_field_integer_unsigned_option_as_option_const( | |
4325 | const bt_field_class_variant_with_selector_field_integer_unsigned_option *option) | |
4326 | { | |
4327 | return __BT_UPCAST_CONST(bt_field_class_variant_option, option); | |
4328 | } | |
4329 | ||
4330 | /*! @} */ | |
4331 | ||
4332 | /*! | |
4333 | @name Variant field class with a signed integer selector field | |
4334 | @{ | |
4335 | */ | |
4336 | ||
4337 | /*! | |
4338 | @brief | |
4339 | Appends an option to the \bt_var_fc (with a signed integer | |
4340 | selector field) \bt_p{field_class} having the name \bt_p{name}, | |
4341 | the field class \bt_p{option_field_class}, and the | |
4342 | \bt_p_sint_rg \bt_p{ranges}. | |
4343 | ||
4344 | See the \ref api-tir-fc-var-prop-opts "options" property. | |
1e6fd1d7 | 4345 | |
43c59509 PP |
4346 | @param[in] field_class |
4347 | Variant field class to which to append an option having | |
4348 | the name \bt_p{name} and the field class \bt_p{option_field_class}, | |
4349 | and the signed integer ranges \bt_p{ranges}. | |
4350 | @param[in] name | |
4351 | Name of the option to append to \bt_p{field_class} (copied). | |
4352 | @param[in] option_field_class | |
4353 | Field class of the option to append to \bt_p{field_class}. | |
4354 | @param[in] ranges | |
4355 | Signed integer ranges of the option to append to | |
4356 | \bt_p{field_class}. | |
4357 | ||
4358 | @retval #BT_FIELD_CLASS_VARIANT_WITH_SELECTOR_FIELD_APPEND_OPTION_STATUS_OK | |
4359 | Success. | |
4360 | @retval #BT_FIELD_CLASS_VARIANT_WITH_SELECTOR_FIELD_APPEND_OPTION_STATUS_MEMORY_ERROR | |
4361 | Out of memory. | |
4362 | ||
4363 | @bt_pre_not_null{field_class} | |
4364 | @bt_pre_hot{field_class} | |
4365 | @bt_pre_is_var_wsis_fc{field_class} | |
4366 | @pre | |
4367 | \bt_p{field_class} has no option with the name \bt_p{name}. | |
4368 | @bt_pre_not_null{name} | |
4369 | @bt_pre_not_null{option_field_class} | |
4370 | @bt_pre_fc_not_in_tc{option_field_class} | |
4371 | @bt_pre_not_null{Å—anges} | |
4372 | @pre | |
4373 | \bt_p{ranges} contains one or more signed integer ranges. | |
4374 | @pre | |
4375 | The signed integer ranges in \bt_p{ranges} do not overlap with | |
4376 | any signed integer range of any existing option in | |
4377 | \bt_p{field_class}. | |
4378 | ||
4379 | @bt_post_success_frozen{option_field_class} | |
4380 | */ | |
de821fe5 PP |
4381 | extern bt_field_class_variant_with_selector_field_integer_append_option_status |
4382 | bt_field_class_variant_with_selector_field_integer_signed_append_option( | |
43c59509 PP |
4383 | bt_field_class *field_class, const char *name, |
4384 | bt_field_class *option_field_class, | |
4385 | const bt_integer_range_set_signed *ranges); | |
740faaf4 | 4386 | |
43c59509 PP |
4387 | /*! |
4388 | @brief | |
4389 | Borrows the option at index \bt_p{index} from the | |
4390 | \bt_var_fc (with a signed integer selector field) | |
4391 | \bt_p{field_class}. | |
c6fe8c40 | 4392 | |
43c59509 | 4393 | See the \ref api-tir-fc-var-prop-opts "options" property. |
c6fe8c40 | 4394 | |
43c59509 PP |
4395 | @param[in] field_class |
4396 | Variant field class from which to borrow the option at | |
4397 | index \bt_p{index}. | |
4398 | @param[in] index | |
4399 | Index of the option to borrow from \bt_p{field_class}. | |
bcd7ef6f | 4400 | |
43c59509 PP |
4401 | @returns |
4402 | @parblock | |
4403 | \em Borrowed reference of the option of | |
4404 | \bt_p{field_class} at index \bt_p{index}. | |
c6962c96 | 4405 | |
43c59509 PP |
4406 | The returned pointer remains valid as long as \bt_p{field_class} |
4407 | is not modified. | |
4408 | @endparblock | |
4409 | ||
4410 | @bt_pre_not_null{field_class} | |
4411 | @bt_pre_is_var_wsis_fc{field_class} | |
4412 | @pre | |
4413 | \bt_p{index} is less than the number of options in | |
4414 | \bt_p{field_class} (as returned by | |
4415 | bt_field_class_variant_get_option_count()). | |
4416 | ||
4417 | @sa bt_field_class_variant_get_option_count() — | |
4418 | Returns the number of options contained in a variant field class. | |
4419 | */ | |
4420 | extern const bt_field_class_variant_with_selector_field_integer_signed_option * | |
4421 | bt_field_class_variant_with_selector_field_integer_signed_borrow_option_by_index_const( | |
4422 | const bt_field_class *field_class, uint64_t index); | |
4423 | ||
4424 | /*! | |
4425 | @brief | |
4426 | Borrows the option having the name \bt_p{name} from the | |
4427 | \bt_var_fc (with a signed integer selector field) | |
4428 | \bt_p{field_class}. | |
4429 | ||
4430 | See the \ref api-tir-fc-var-prop-opts "options" property. | |
4431 | ||
4432 | If there's no option having the name \bt_p{name} in | |
4433 | \bt_p{field_class}, this function returns \c NULL. | |
4434 | ||
4435 | @param[in] field_class | |
4436 | Variant field class from which to borrow the option having the | |
4437 | name \bt_p{name}. | |
4438 | @param[in] name | |
4439 | Name of the option to borrow from \bt_p{field_class}. | |
4440 | ||
4441 | @returns | |
4442 | @parblock | |
4443 | \em Borrowed reference of the option of | |
4444 | \bt_p{field_class} having the name \bt_p{name}, or \c NULL | |
4445 | if none. | |
4446 | ||
4447 | The returned pointer remains valid as long as \bt_p{field_class} | |
4448 | is not modified. | |
4449 | @endparblock | |
4450 | ||
4451 | @bt_pre_not_null{field_class} | |
4452 | @bt_pre_is_var_wsis_fc{field_class} | |
4453 | @bt_pre_not_null{name} | |
4454 | ||
4455 | @sa bt_field_class_variant_borrow_option_by_name_const() — | |
4456 | Borrows an option by name from a variant field class. | |
4457 | */ | |
4458 | extern const bt_field_class_variant_with_selector_field_integer_signed_option * | |
4459 | bt_field_class_variant_with_selector_field_integer_signed_borrow_option_by_name_const( | |
4460 | const bt_field_class *field_class, const char *name); | |
4461 | ||
4462 | /*! @} */ | |
4463 | ||
4464 | /*! | |
4465 | @name Variant field class (with a signed integer selector field) option | |
4466 | @{ | |
4467 | */ | |
4468 | ||
4469 | /*! | |
4470 | @typedef struct bt_field_class_variant_with_selector_field_integer_signed_option bt_field_class_variant_with_selector_field_integer_signed_option; | |
4471 | ||
4472 | @brief | |
4473 | Variant field class (with a signed integer selector field) option. | |
4474 | */ | |
4475 | ||
4476 | /*! | |
4477 | @brief | |
4478 | Borrows the \bt_p_sint_rg from the \bt_var_fc (with a signed | |
4479 | integer selector field) option \bt_p{option}. | |
4480 | ||
4481 | See the \ref api-tir-fc-var-prop-opts "options" property. | |
4482 | ||
4483 | @param[in] option | |
4484 | Variant field class option from which to borrow the | |
4485 | signed integer ranges. | |
4486 | ||
4487 | @returns | |
4488 | Signed integer ranges of \bt_p{option}. | |
4489 | ||
4490 | @bt_pre_not_null{option} | |
4491 | */ | |
4492 | extern const bt_integer_range_set_signed * | |
4493 | bt_field_class_variant_with_selector_field_integer_signed_option_borrow_ranges_const( | |
4494 | const bt_field_class_variant_with_selector_field_integer_signed_option *option); | |
4495 | ||
4496 | /*! | |
4497 | @brief | |
4498 | \ref api-fund-c-typing "Upcasts" the \bt_var_fc (with a signed | |
4499 | integer selector field) option \bt_p{option} to the | |
4500 | common #bt_field_class_variant_option type. | |
4501 | ||
4502 | See the \ref api-tir-fc-var-prop-opts "options" property. | |
4503 | ||
4504 | @param[in] option | |
4505 | @parblock | |
4506 | Variant field class option to upcast. | |
4507 | ||
4508 | Can be \c NULL. | |
4509 | @endparblock | |
4510 | ||
4511 | @returns | |
4512 | \bt_p{option} as a common variant field class option. | |
4513 | */ | |
4514 | static inline | |
4515 | const bt_field_class_variant_option * | |
4516 | bt_field_class_variant_with_selector_field_integer_signed_option_as_option_const( | |
4517 | const bt_field_class_variant_with_selector_field_integer_signed_option *option) | |
4518 | { | |
4519 | return __BT_UPCAST_CONST(bt_field_class_variant_option, option); | |
4520 | } | |
4521 | ||
4522 | /*! @} */ | |
4523 | ||
4524 | /*! | |
4525 | @name Reference count | |
4526 | @{ | |
4527 | */ | |
4528 | ||
4529 | /*! | |
4530 | @brief | |
4531 | Increments the \ref api-fund-shared-object "reference count" of | |
4532 | the field class \bt_p{field_class}. | |
4533 | ||
4534 | @param[in] field_class | |
4535 | @parblock | |
4536 | Field class of which to increment the reference count. | |
4537 | ||
4538 | Can be \c NULL. | |
4539 | @endparblock | |
4540 | ||
4541 | @sa bt_field_class_put_ref() — | |
4542 | Decrements the reference count of a field class. | |
4543 | */ | |
4544 | extern void bt_field_class_get_ref(const bt_field_class *field_class); | |
4545 | ||
4546 | /*! | |
4547 | @brief | |
4548 | Decrements the \ref api-fund-shared-object "reference count" of | |
4549 | the field class \bt_p{field_class}. | |
4550 | ||
4551 | @param[in] field_class | |
4552 | @parblock | |
4553 | Field class of which to decrement the reference count. | |
4554 | ||
4555 | Can be \c NULL. | |
4556 | @endparblock | |
4557 | ||
4558 | @sa bt_field_class_get_ref() — | |
4559 | Increments the reference count of a field class. | |
4560 | */ | |
4561 | extern void bt_field_class_put_ref(const bt_field_class *field_class); | |
4562 | ||
4563 | /*! | |
4564 | @brief | |
4565 | Decrements the reference count of the field class | |
4566 | \bt_p{_field_class}, and then sets \bt_p{_field_class} to \c NULL. | |
4567 | ||
4568 | @param _field_class | |
4569 | @parblock | |
4570 | Field class of which to decrement the reference count. | |
4571 | ||
4572 | Can contain \c NULL. | |
4573 | @endparblock | |
4574 | ||
4575 | @bt_pre_assign_expr{_field_class} | |
4576 | */ | |
4577 | #define BT_FIELD_CLASS_PUT_REF_AND_RESET(_field_class) \ | |
4578 | do { \ | |
4579 | bt_field_class_put_ref(_field_class); \ | |
4580 | (_field_class) = NULL; \ | |
4581 | } while (0) | |
4582 | ||
4583 | /*! | |
4584 | @brief | |
4585 | Decrements the reference count of the field class \bt_p{_dst}, sets | |
4586 | \bt_p{_dst} to \bt_p{_src}, and then sets \bt_p{_src} to \c NULL. | |
4587 | ||
4588 | This macro effectively moves a field class reference from the expression | |
4589 | \bt_p{_src} to the expression \bt_p{_dst}, putting the existing | |
4590 | \bt_p{_dst} reference. | |
4591 | ||
4592 | @param _dst | |
4593 | @parblock | |
4594 | Destination expression. | |
4595 | ||
4596 | Can contain \c NULL. | |
4597 | @endparblock | |
4598 | @param _src | |
4599 | @parblock | |
4600 | Source expression. | |
4601 | ||
4602 | Can contain \c NULL. | |
4603 | @endparblock | |
4604 | ||
4605 | @bt_pre_assign_expr{_dst} | |
4606 | @bt_pre_assign_expr{_src} | |
4607 | */ | |
4608 | #define BT_FIELD_CLASS_MOVE_REF(_dst, _src) \ | |
4609 | do { \ | |
4610 | bt_field_class_put_ref(_dst); \ | |
4611 | (_dst) = (_src); \ | |
4612 | (_src) = NULL; \ | |
4613 | } while (0) | |
4614 | ||
4615 | /*! @} */ | |
4616 | ||
4617 | /*! @} */ | |
c6962c96 | 4618 | |
5cd6d0e5 PP |
4619 | #ifdef __cplusplus |
4620 | } | |
4621 | #endif | |
4622 | ||
924dc299 | 4623 | #endif /* BABELTRACE2_TRACE_IR_FIELD_CLASS_H */ |