| 1 | /* |
| 2 | * SPDX-License-Identifier: MIT |
| 3 | * |
| 4 | * Copyright (C) 2010-2019 EfficiOS Inc. and Linux Foundation |
| 5 | */ |
| 6 | |
| 7 | #ifndef BABELTRACE2_TRACE_IR_STREAM_CLASS_H |
| 8 | #define BABELTRACE2_TRACE_IR_STREAM_CLASS_H |
| 9 | |
| 10 | /* IWYU pragma: private, include <babeltrace2/babeltrace.h> */ |
| 11 | |
| 12 | #ifndef __BT_IN_BABELTRACE_H |
| 13 | # error "Please include <babeltrace2/babeltrace.h> instead." |
| 14 | #endif |
| 15 | |
| 16 | #include <stdint.h> |
| 17 | |
| 18 | #include <babeltrace2/types.h> |
| 19 | |
| 20 | #ifdef __cplusplus |
| 21 | extern "C" { |
| 22 | #endif |
| 23 | |
| 24 | /*! |
| 25 | @defgroup api-tir-stream-cls Stream class |
| 26 | @ingroup api-tir |
| 27 | |
| 28 | @brief |
| 29 | Class of \bt_p_stream. |
| 30 | |
| 31 | A <strong><em>stream class</em></strong> is the class of \bt_p_stream: |
| 32 | |
| 33 | @image html trace-structure.png |
| 34 | |
| 35 | In the illustration above, notice that: |
| 36 | |
| 37 | - A \bt_stream is a conceptual \ref api-msg-seq "sequence of messages". |
| 38 | |
| 39 | The sequence always starts with a \bt_sb_msg and ends with a |
| 40 | \bt_se_msg. |
| 41 | |
| 42 | - A stream is an instance of a stream class. |
| 43 | |
| 44 | A stream class is a \ref api-tir "trace IR" metadata object. |
| 45 | |
| 46 | A stream class is a \ref api-fund-shared-object "shared object": get a |
| 47 | new reference with bt_stream_class_get_ref() and put an existing |
| 48 | reference with bt_stream_class_put_ref(). |
| 49 | |
| 50 | Some library functions \ref api-fund-freezing "freeze" stream classes on |
| 51 | success. The documentation of those functions indicate this |
| 52 | postcondition. You can still create and add an \bt_p_ev_cls to a frozen |
| 53 | stream class with bt_event_class_create() or |
| 54 | bt_event_class_create_with_id(). |
| 55 | |
| 56 | The type of a stream class is #bt_stream_class. |
| 57 | |
| 58 | A \bt_trace_cls contains stream classes. All the stream classes of a |
| 59 | given trace class have unique |
| 60 | \ref api-tir-stream-cls-prop-id "numeric IDs". Borrow the trace class |
| 61 | which contains a stream class with bt_stream_class_borrow_trace_class() |
| 62 | or bt_stream_class_borrow_trace_class_const(). |
| 63 | |
| 64 | A stream class contains \bt_p_ev_cls. All the event classes of a given |
| 65 | stream class have unique \ref api-tir-ev-cls-prop-id "numeric IDs". Get |
| 66 | the number of event classes in a stream class with |
| 67 | bt_stream_class_get_event_class_count(). Borrow a specific event class |
| 68 | from a stream class with bt_stream_class_borrow_event_class_by_index(), |
| 69 | bt_stream_class_borrow_event_class_by_index_const(), |
| 70 | bt_stream_class_borrow_event_class_by_id(), and |
| 71 | bt_stream_class_borrow_event_class_by_id_const(). |
| 72 | |
| 73 | A stream class controls what its instances (\bt_p_stream) support: |
| 74 | |
| 75 | <dl> |
| 76 | <dt>Default clock</dt> |
| 77 | <dd> |
| 78 | By default, a stream class's streams do not have default clocks. |
| 79 | |
| 80 | Set the default \bt_clock_cls of a stream class with |
| 81 | bt_stream_class_set_default_clock_class(). This makes all its |
| 82 | streams have their own default clock. |
| 83 | </dd> |
| 84 | |
| 85 | <dt>\anchor api-tir-stream-cls-pkt-support Packets</dt> |
| 86 | <dd> |
| 87 | By default, a stream class's streams do not support \bt_p_pkt. |
| 88 | |
| 89 | In other words, you cannot create a packet for such a stream, |
| 90 | therefore you cannot create \bt_p_pb_msg and \bt_p_pe_msg for this |
| 91 | stream either. |
| 92 | |
| 93 | Enable packet support for a stream class's streams with |
| 94 | bt_stream_class_set_supports_packets(). |
| 95 | |
| 96 | bt_stream_class_set_supports_packets() also configures whether or |
| 97 | not the packets of the stream class's instances have beginning |
| 98 | and/or end default \bt_p_cs. |
| 99 | </dd> |
| 100 | |
| 101 | <dt>Discarded events</dt> |
| 102 | <dd> |
| 103 | By default, a stream class's streams do not support discarded |
| 104 | events. |
| 105 | |
| 106 | In other words, you cannot create \bt_p_disc_ev_msg for such a |
| 107 | stream. |
| 108 | |
| 109 | Enable discarded events support for a stream class's streams with |
| 110 | bt_stream_class_set_supports_discarded_events(). |
| 111 | |
| 112 | bt_stream_class_set_supports_discarded_events() also configures |
| 113 | whether or not the discarded events messages of the stream class's |
| 114 | instances have beginning and end default \bt_p_cs to indicate the |
| 115 | discarded events time range. |
| 116 | </dd> |
| 117 | |
| 118 | <dt>Discarded packets</dt> |
| 119 | <dd> |
| 120 | By default, a stream class's streams do not support discarded |
| 121 | packets. |
| 122 | |
| 123 | In other words, you cannot create \bt_p_disc_pkt_msg for such a |
| 124 | stream. |
| 125 | |
| 126 | Enable discarded packets support for a stream class's streams with |
| 127 | bt_stream_class_set_supports_discarded_packets(). This also implies |
| 128 | that you must enable packet support with |
| 129 | bt_stream_class_set_supports_packets(). |
| 130 | |
| 131 | bt_stream_class_set_supports_discarded_packets() also configures |
| 132 | whether or not the discarded packets messages of the stream class's |
| 133 | instances have beginning and end \bt_p_cs to indicate the |
| 134 | discarded packets time range. |
| 135 | </dd> |
| 136 | </dl> |
| 137 | |
| 138 | Set whether or not the \bt_p_ev_cls and \bt_p_stream you create for a |
| 139 | stream class get automatic numeric IDs with |
| 140 | bt_stream_class_set_assigns_automatic_event_class_id() and |
| 141 | bt_stream_class_set_assigns_automatic_stream_id(). |
| 142 | |
| 143 | To create a default stream class: |
| 144 | |
| 145 | <dl> |
| 146 | <dt> |
| 147 | If bt_trace_class_assigns_automatic_stream_class_id() returns |
| 148 | #BT_TRUE (the default) for the trace class to use |
| 149 | </dt> |
| 150 | <dd>Use bt_stream_class_create().</dd> |
| 151 | |
| 152 | <dt> |
| 153 | If bt_trace_class_assigns_automatic_stream_class_id() returns |
| 154 | #BT_FALSE for the trace class to use |
| 155 | </dt> |
| 156 | <dd>Use bt_stream_class_create_with_id().</dd> |
| 157 | </dl> |
| 158 | |
| 159 | <h1>Properties</h1> |
| 160 | |
| 161 | A stream class has the following properties: |
| 162 | |
| 163 | <dl> |
| 164 | <dt>\anchor api-tir-stream-cls-prop-id Numeric ID</dt> |
| 165 | <dd> |
| 166 | Numeric ID, unique amongst the numeric IDs of the stream class's |
| 167 | \bt_trace_cls's stream classes. |
| 168 | |
| 169 | Depending on whether or not the stream class's trace class |
| 170 | automatically assigns \bt_ev_cls IDs |
| 171 | (see bt_trace_class_assigns_automatic_stream_class_id()), |
| 172 | set the stream class's numeric ID on creation with |
| 173 | bt_stream_class_create() or bt_stream_class_create_with_id(). |
| 174 | |
| 175 | You cannot change the numeric ID once the stream class is created. |
| 176 | |
| 177 | Get a stream class's numeric ID with bt_stream_class_get_id(). |
| 178 | </dd> |
| 179 | |
| 180 | <dt>\anchor api-tir-stream-cls-prop-name \bt_dt_opt Name</dt> |
| 181 | <dd> |
| 182 | Name of the stream class. |
| 183 | |
| 184 | Use bt_stream_class_set_name() and bt_stream_class_get_name(). |
| 185 | </dd> |
| 186 | |
| 187 | <dt> |
| 188 | \anchor api-tir-stream-cls-prop-def-clock-cls |
| 189 | \bt_dt_opt Default clock class |
| 190 | </dt> |
| 191 | <dd> |
| 192 | Default \bt_clock_cls of the stream class. |
| 193 | |
| 194 | As of \bt_name_version_min_maj, a stream class either has a default |
| 195 | clock class or none: it cannot have more than one clock class. |
| 196 | |
| 197 | When a stream class has a default clock class, then all its |
| 198 | instances (\bt_p_stream) have a default clock which is an instance |
| 199 | of the stream class's default clock class. |
| 200 | |
| 201 | Use bt_stream_class_set_default_clock_class(), |
| 202 | bt_stream_class_borrow_default_clock_class(), and |
| 203 | bt_stream_class_borrow_default_clock_class_const(). |
| 204 | </dd> |
| 205 | |
| 206 | <dt> |
| 207 | \anchor api-tir-stream-cls-prop-pc-fc |
| 208 | \bt_dt_opt Packet context field class |
| 209 | </dt> |
| 210 | <dd> |
| 211 | \bt_c_pkt context \bt_fc of the stream class. |
| 212 | |
| 213 | This property is only relevant if the stream class |
| 214 | \ref api-tir-stream-cls-prop-supports-pkt "supports packets". |
| 215 | |
| 216 | The context of a \bt_pkt contains data which is common to all the |
| 217 | packet's \bt_p_ev. |
| 218 | |
| 219 | Use bt_stream_class_set_packet_context_field_class() |
| 220 | bt_stream_class_borrow_packet_context_field_class(), |
| 221 | and bt_stream_class_borrow_packet_context_field_class_const(). |
| 222 | </dd> |
| 223 | |
| 224 | <dt> |
| 225 | \anchor api-tir-stream-cls-prop-ecc-fc |
| 226 | \bt_dt_opt Event common context field class |
| 227 | </dt> |
| 228 | <dd> |
| 229 | \bt_c_ev common context \bt_fc of the stream class. |
| 230 | |
| 231 | The common context of an \bt_ev contains contextual data of which |
| 232 | the layout is common to all the stream class's \bt_p_ev_cls. |
| 233 | |
| 234 | Use bt_stream_class_set_event_common_context_field_class() |
| 235 | bt_stream_class_borrow_event_common_context_field_class(), |
| 236 | and bt_stream_class_borrow_event_common_context_field_class_const(). |
| 237 | </dd> |
| 238 | |
| 239 | <dt> |
| 240 | \anchor api-tir-stream-cls-prop-auto-ec-id |
| 241 | Assigns automatic event class IDs? |
| 242 | </dt> |
| 243 | <dd> |
| 244 | Whether or not the \bt_p_ev_cls you create and add to the stream |
| 245 | class get \ref api-tir-ev-cls-prop-id "numeric IDs" automatically. |
| 246 | |
| 247 | Depending on the value of this property, to create an event class |
| 248 | and add it to the stream class: |
| 249 | |
| 250 | <dl> |
| 251 | <dt>#BT_TRUE</dt> |
| 252 | <dd> |
| 253 | Use bt_event_class_create(). |
| 254 | </dd> |
| 255 | |
| 256 | <dt>#BT_FALSE</dt> |
| 257 | <dd> |
| 258 | Use bt_event_class_create_with_id(). |
| 259 | </dd> |
| 260 | </dl> |
| 261 | |
| 262 | Use bt_stream_class_set_assigns_automatic_event_class_id() |
| 263 | and bt_stream_class_assigns_automatic_event_class_id(). |
| 264 | </dd> |
| 265 | |
| 266 | <dt> |
| 267 | \anchor api-tir-stream-cls-prop-auto-stream-id |
| 268 | Assigns automatic stream IDs? |
| 269 | </dt> |
| 270 | <dd> |
| 271 | Whether or not the streams you create from the stream class |
| 272 | get \ref api-tir-stream-prop-id "numeric IDs" automatically. |
| 273 | |
| 274 | Depending on the value of this property, to create a stream |
| 275 | from the stream class: |
| 276 | |
| 277 | <dl> |
| 278 | <dt>#BT_TRUE</dt> |
| 279 | <dd> |
| 280 | Use bt_stream_create(). |
| 281 | </dd> |
| 282 | |
| 283 | <dt>#BT_FALSE</dt> |
| 284 | <dd> |
| 285 | Use bt_stream_create_with_id(). |
| 286 | </dd> |
| 287 | </dl> |
| 288 | |
| 289 | Use bt_stream_class_set_assigns_automatic_stream_id() |
| 290 | and bt_stream_class_assigns_automatic_stream_id(). |
| 291 | </dd> |
| 292 | |
| 293 | <dt> |
| 294 | \anchor api-tir-stream-cls-prop-supports-pkt |
| 295 | Supports packets? |
| 296 | </dt> |
| 297 | <dd> |
| 298 | Whether or not the streams you create from the stream class |
| 299 | have \bt_p_pkt. |
| 300 | |
| 301 | If a stream has packets, then all the stream's \bt_p_ev are |
| 302 | conceptually contained within packets, which means you must |
| 303 | create \bt_p_ev_msg for such streams with |
| 304 | bt_message_event_create_with_packet() or |
| 305 | bt_message_event_create_with_packet_and_default_clock_snapshot() |
| 306 | instead of bt_message_event_create() or |
| 307 | bt_message_event_create_with_default_clock_snapshot(). |
| 308 | |
| 309 | It also means you must create \bt_p_pb_msg and \bt_p_pe_msg to |
| 310 | indicate where packets begin and end within the stream's |
| 311 | \ref api-msg-seq "message sequence". |
| 312 | |
| 313 | Use bt_stream_class_set_supports_packets() and |
| 314 | bt_stream_class_supports_packets(). |
| 315 | </dd> |
| 316 | |
| 317 | <dt> |
| 318 | \anchor api-tir-stream-cls-prop-pkt-beg-cs |
| 319 | Packets have a beginning default clock snapshot? |
| 320 | </dt> |
| 321 | <dd> |
| 322 | Whether or not the \bt_p_pkt of the streams you create from the |
| 323 | stream class have beginning default \bt_p_cs. |
| 324 | |
| 325 | This property is only relevant if the stream class |
| 326 | \ref api-tir-stream-cls-prop-supports-pkt "supports packets" and |
| 327 | has a |
| 328 | \ref api-tir-stream-cls-prop-def-clock-cls "default clock class". |
| 329 | |
| 330 | If the stream packets have a beginning default clock snapshot, then |
| 331 | you must create \bt_p_pb_msg with |
| 332 | bt_message_packet_beginning_create_with_default_clock_snapshot() |
| 333 | instead of bt_message_packet_beginning_create(). |
| 334 | |
| 335 | Use bt_stream_class_set_supports_packets() and |
| 336 | bt_stream_class_packets_have_beginning_default_clock_snapshot(). |
| 337 | </dd> |
| 338 | |
| 339 | <dt> |
| 340 | \anchor api-tir-stream-cls-prop-pkt-end-cs |
| 341 | Packets have an end default clock snapshot? |
| 342 | </dt> |
| 343 | <dd> |
| 344 | Whether or not the \bt_p_pkt of the streams you create from the |
| 345 | stream class have end default \bt_p_cs. |
| 346 | |
| 347 | This property is only relevant if the stream class |
| 348 | \ref api-tir-stream-cls-prop-supports-pkt "supports packets" and |
| 349 | has a |
| 350 | \ref api-tir-stream-cls-prop-def-clock-cls "default clock class". |
| 351 | |
| 352 | If the stream packets have an end default clock snapshot, then you |
| 353 | must create \bt_p_pe_msg with |
| 354 | bt_message_packet_end_create_with_default_clock_snapshot() instead |
| 355 | of bt_message_packet_end_create(). |
| 356 | |
| 357 | Use bt_stream_class_set_supports_packets() and |
| 358 | bt_stream_class_packets_have_end_default_clock_snapshot(). |
| 359 | </dd> |
| 360 | |
| 361 | <dt> |
| 362 | \anchor api-tir-stream-cls-prop-supports-disc-ev |
| 363 | Supports discarded events? |
| 364 | </dt> |
| 365 | <dd> |
| 366 | Whether or not the streams you create from the stream class can have |
| 367 | discarded events. |
| 368 | |
| 369 | If the stream class supports discarded events, then you can create |
| 370 | \bt_p_disc_ev_msg for this stream. |
| 371 | |
| 372 | Use bt_stream_class_set_supports_discarded_events() |
| 373 | and bt_stream_class_supports_discarded_events(). |
| 374 | </dd> |
| 375 | |
| 376 | <dt> |
| 377 | \anchor api-tir-stream-cls-prop-disc-ev-cs |
| 378 | Discarded events have default clock snapshots? |
| 379 | </dt> |
| 380 | <dd> |
| 381 | Whether or not the stream's \bt_p_disc_ev_msg have |
| 382 | default beginning and end \bt_p_cs to indicate the discarded events |
| 383 | time range. |
| 384 | |
| 385 | This property is only relevant if the stream class |
| 386 | \ref api-tir-stream-cls-prop-supports-disc-ev "supports discarded events" |
| 387 | and has a |
| 388 | \ref api-tir-stream-cls-prop-def-clock-cls "default clock class". |
| 389 | |
| 390 | If the stream's discarded events messages have beginning and end |
| 391 | default clock snapshots, then you must create them with |
| 392 | bt_message_discarded_events_create_with_default_clock_snapshots() |
| 393 | instead of bt_message_discarded_events_create(). |
| 394 | |
| 395 | Use bt_stream_class_set_supports_discarded_events() |
| 396 | and bt_stream_class_discarded_events_have_default_clock_snapshots(). |
| 397 | </dd> |
| 398 | |
| 399 | <dt> |
| 400 | \anchor api-tir-stream-cls-prop-supports-disc-pkt |
| 401 | Supports discarded packets? |
| 402 | </dt> |
| 403 | <dd> |
| 404 | Whether or not the streams you create from the stream class can have |
| 405 | discarded packets. |
| 406 | |
| 407 | This property is only relevant if the stream class |
| 408 | \ref api-tir-stream-cls-prop-supports-pkt "supports packets". |
| 409 | |
| 410 | If the stream class supports discarded packets, then you can create |
| 411 | \bt_p_disc_pkt_msg for this stream. |
| 412 | |
| 413 | Use bt_stream_class_set_supports_discarded_packets() |
| 414 | and bt_stream_class_supports_discarded_packets(). |
| 415 | </dd> |
| 416 | |
| 417 | <dt> |
| 418 | \anchor api-tir-stream-cls-prop-disc-pkt-cs |
| 419 | Discarded packets have default clock snapshots? |
| 420 | </dt> |
| 421 | <dd> |
| 422 | Whether or not the stream's \bt_p_disc_pkt_msg have |
| 423 | default beginning and end \bt_p_cs to indicate the discarded |
| 424 | packets time range. |
| 425 | |
| 426 | This property is only relevant if the stream class |
| 427 | \ref api-tir-stream-cls-prop-supports-disc-pkt "supports discarded packets" |
| 428 | and has a |
| 429 | \ref api-tir-stream-cls-prop-def-clock-cls "default clock class". |
| 430 | |
| 431 | If the stream's discarded packets messages have default clock |
| 432 | snapshots, then you must create them with |
| 433 | bt_message_discarded_packets_create_with_default_clock_snapshots() |
| 434 | instead of bt_message_discarded_packets_create(). |
| 435 | |
| 436 | Use bt_stream_class_set_supports_discarded_packets() |
| 437 | and bt_stream_class_discarded_packets_have_default_clock_snapshots(). |
| 438 | </dd> |
| 439 | |
| 440 | <dt> |
| 441 | \anchor api-tir-stream-cls-prop-user-attrs |
| 442 | \bt_dt_opt User attributes |
| 443 | </dt> |
| 444 | <dd> |
| 445 | User attributes of the stream class. |
| 446 | |
| 447 | User attributes are custom attributes attached to a stream class. |
| 448 | |
| 449 | Use bt_stream_class_set_user_attributes(), |
| 450 | bt_stream_class_borrow_user_attributes(), and |
| 451 | bt_stream_class_borrow_user_attributes_const(). |
| 452 | </dd> |
| 453 | </dl> |
| 454 | */ |
| 455 | |
| 456 | /*! @{ */ |
| 457 | |
| 458 | /*! |
| 459 | @name Type |
| 460 | @{ |
| 461 | |
| 462 | @typedef struct bt_stream_class bt_stream_class; |
| 463 | |
| 464 | @brief |
| 465 | Stream class. |
| 466 | |
| 467 | @} |
| 468 | */ |
| 469 | |
| 470 | /*! |
| 471 | @name Creation |
| 472 | @{ |
| 473 | */ |
| 474 | |
| 475 | /*! |
| 476 | @brief |
| 477 | Creates a default stream class and adds it to the \bt_trace_cls |
| 478 | \bt_p{trace_class}. |
| 479 | |
| 480 | @attention |
| 481 | @parblock |
| 482 | Only use this function if |
| 483 | |
| 484 | @code |
| 485 | bt_trace_class_assigns_automatic_stream_class_id(trace_class) |
| 486 | @endcode |
| 487 | |
| 488 | returns #BT_TRUE. |
| 489 | |
| 490 | Otherwise, use bt_stream_class_create_with_id(). |
| 491 | @endparblock |
| 492 | |
| 493 | On success, the returned stream class has the following property values: |
| 494 | |
| 495 | <table> |
| 496 | <tr> |
| 497 | <th>Property |
| 498 | <th>Value |
| 499 | <tr> |
| 500 | <td>\ref api-tir-stream-cls-prop-id "Numeric ID" |
| 501 | <td>Automatically assigned by \bt_p{trace_class} |
| 502 | <tr> |
| 503 | <td>\ref api-tir-stream-cls-prop-name "Name" |
| 504 | <td>\em None |
| 505 | <tr> |
| 506 | <td>\ref api-tir-stream-cls-prop-def-clock-cls "Default clock class" |
| 507 | <td>\em None |
| 508 | <tr> |
| 509 | <td>\ref api-tir-stream-cls-prop-pc-fc "Packet context field class" |
| 510 | <td>\em None |
| 511 | <tr> |
| 512 | <td>\ref api-tir-stream-cls-prop-ecc-fc "Event common context field class" |
| 513 | <td>\em None |
| 514 | <tr> |
| 515 | <td>\ref api-tir-stream-cls-prop-auto-ec-id "Assigns automatic event class IDs?" |
| 516 | <td>Yes |
| 517 | <tr> |
| 518 | <td>\ref api-tir-stream-cls-prop-auto-stream-id "Assigns automatic stream IDs?" |
| 519 | <td>Yes |
| 520 | <tr> |
| 521 | <td>\ref api-tir-stream-cls-prop-supports-pkt "Supports packets?" |
| 522 | <td>No |
| 523 | <tr> |
| 524 | <td>\ref api-tir-stream-cls-prop-pkt-beg-cs "Packets have a beginning default clock snapshot?" |
| 525 | <td>No |
| 526 | <tr> |
| 527 | <td>\ref api-tir-stream-cls-prop-pkt-end-cs "Packets have an end default clock snapshot?" |
| 528 | <td>No |
| 529 | <tr> |
| 530 | <td>\ref api-tir-stream-cls-prop-supports-disc-ev "Supports discarded events?" |
| 531 | <td>No |
| 532 | <tr> |
| 533 | <td>\ref api-tir-stream-cls-prop-disc-ev-cs "Discarded events have default clock snapshots?" |
| 534 | <td>No |
| 535 | <tr> |
| 536 | <td>\ref api-tir-stream-cls-prop-supports-disc-pkt "Supports discarded packets?" |
| 537 | <td>No |
| 538 | <tr> |
| 539 | <td>\ref api-tir-stream-cls-prop-disc-pkt-cs "Discarded packets have default clock snapshots?" |
| 540 | <td>No |
| 541 | <tr> |
| 542 | <td>\ref api-tir-stream-cls-prop-user-attrs "User attributes" |
| 543 | <td>Empty \bt_map_val |
| 544 | </table> |
| 545 | |
| 546 | @param[in] trace_class |
| 547 | Trace class to add the created stream class to. |
| 548 | |
| 549 | @returns |
| 550 | New stream class reference, or \c NULL on memory error. |
| 551 | |
| 552 | @bt_pre_not_null{trace_class} |
| 553 | @pre |
| 554 | <code>bt_trace_class_assigns_automatic_stream_class_id(trace_class)</code> |
| 555 | returns #BT_TRUE. |
| 556 | |
| 557 | @bt_post_success_frozen{trace_class} |
| 558 | |
| 559 | @sa bt_stream_class_create_with_id() — |
| 560 | Creates a stream class with a specific numeric ID and adds it to a |
| 561 | trace class. |
| 562 | */ |
| 563 | extern bt_stream_class *bt_stream_class_create( |
| 564 | bt_trace_class *trace_class) __BT_NOEXCEPT; |
| 565 | |
| 566 | /*! |
| 567 | @brief |
| 568 | Creates a default stream class with the numeric ID \bt_p{id} and adds |
| 569 | it to the \bt_trace_cls \bt_p{trace_class}. |
| 570 | |
| 571 | @attention |
| 572 | @parblock |
| 573 | Only use this function if |
| 574 | |
| 575 | @code |
| 576 | bt_trace_class_assigns_automatic_stream_class_id(trace_class) |
| 577 | @endcode |
| 578 | |
| 579 | returns #BT_FALSE. |
| 580 | |
| 581 | Otherwise, use bt_stream_class_create(). |
| 582 | @endparblock |
| 583 | |
| 584 | On success, the returned stream class has the following property values: |
| 585 | |
| 586 | <table> |
| 587 | <tr> |
| 588 | <th>Property |
| 589 | <th>Value |
| 590 | <tr> |
| 591 | <td>\ref api-tir-stream-cls-prop-id "Numeric ID" |
| 592 | <td>\bt_p{id} |
| 593 | <tr> |
| 594 | <td>\ref api-tir-stream-cls-prop-name "Name" |
| 595 | <td>\em None |
| 596 | <tr> |
| 597 | <td>\ref api-tir-stream-cls-prop-def-clock-cls "Default clock class" |
| 598 | <td>\em None |
| 599 | <tr> |
| 600 | <td>\ref api-tir-stream-cls-prop-pc-fc "Packet context field class" |
| 601 | <td>\em None |
| 602 | <tr> |
| 603 | <td>\ref api-tir-stream-cls-prop-ecc-fc "Event common context field class" |
| 604 | <td>\em None |
| 605 | <tr> |
| 606 | <td>\ref api-tir-stream-cls-prop-auto-ec-id "Assigns automatic event class IDs?" |
| 607 | <td>Yes |
| 608 | <tr> |
| 609 | <td>\ref api-tir-stream-cls-prop-auto-stream-id "Assigns automatic stream IDs?" |
| 610 | <td>Yes |
| 611 | <tr> |
| 612 | <td>\ref api-tir-stream-cls-prop-supports-pkt "Supports packets?" |
| 613 | <td>No |
| 614 | <tr> |
| 615 | <td>\ref api-tir-stream-cls-prop-pkt-beg-cs "Packets have a beginning default clock snapshot?" |
| 616 | <td>No |
| 617 | <tr> |
| 618 | <td>\ref api-tir-stream-cls-prop-pkt-end-cs "Packets have an end default clock snapshot?" |
| 619 | <td>No |
| 620 | <tr> |
| 621 | <td>\ref api-tir-stream-cls-prop-supports-disc-ev "Supports discarded events?" |
| 622 | <td>No |
| 623 | <tr> |
| 624 | <td>\ref api-tir-stream-cls-prop-disc-ev-cs "Discarded events have default clock snapshots?" |
| 625 | <td>No |
| 626 | <tr> |
| 627 | <td>\ref api-tir-stream-cls-prop-supports-disc-pkt "Supports discarded packets?" |
| 628 | <td>No |
| 629 | <tr> |
| 630 | <td>\ref api-tir-stream-cls-prop-disc-pkt-cs "Discarded packets have default clock snapshots?" |
| 631 | <td>No |
| 632 | <tr> |
| 633 | <td>\ref api-tir-stream-cls-prop-user-attrs "User attributes" |
| 634 | <td>Empty \bt_map_val |
| 635 | </table> |
| 636 | |
| 637 | @param[in] trace_class |
| 638 | Trace class to add the created stream class to. |
| 639 | @param[in] id |
| 640 | Numeric ID of the stream class to create and add to |
| 641 | \bt_p{trace_class}. |
| 642 | |
| 643 | @returns |
| 644 | New stream class reference, or \c NULL on memory error. |
| 645 | |
| 646 | @bt_pre_not_null{trace_class} |
| 647 | @pre |
| 648 | <code>bt_trace_class_assigns_automatic_stream_class_id(trace_class)</code> |
| 649 | returns #BT_FALSE. |
| 650 | @pre |
| 651 | \bt_p{trace_class} does not contain a stream class with the numeric |
| 652 | ID \bt_p{id}. |
| 653 | |
| 654 | @bt_post_success_frozen{trace_class} |
| 655 | |
| 656 | @sa bt_stream_class_create() — |
| 657 | Creates a stream class with an automatic numeric ID and adds it to a |
| 658 | trace class. |
| 659 | */ |
| 660 | extern bt_stream_class *bt_stream_class_create_with_id( |
| 661 | bt_trace_class *trace_class, uint64_t id) __BT_NOEXCEPT; |
| 662 | |
| 663 | /*! @} */ |
| 664 | |
| 665 | /*! |
| 666 | @name Trace class access |
| 667 | @{ |
| 668 | */ |
| 669 | |
| 670 | /*! |
| 671 | @brief |
| 672 | Borrows the \bt_trace_cls which contains the stream class |
| 673 | \bt_p{stream_class}. |
| 674 | |
| 675 | @param[in] stream_class |
| 676 | Stream class from which to borrow the trace class which contains it. |
| 677 | |
| 678 | @returns |
| 679 | Trace class which contains \bt_p{stream_class}. |
| 680 | |
| 681 | @bt_pre_not_null{stream_class} |
| 682 | |
| 683 | @sa bt_stream_class_borrow_trace_class_const() — |
| 684 | \c const version of this function. |
| 685 | */ |
| 686 | extern bt_trace_class *bt_stream_class_borrow_trace_class( |
| 687 | bt_stream_class *stream_class) __BT_NOEXCEPT; |
| 688 | |
| 689 | /*! |
| 690 | @brief |
| 691 | Borrows the \bt_trace_cls which contains the stream class |
| 692 | \bt_p{stream_class} (\c const version). |
| 693 | |
| 694 | See bt_stream_class_borrow_trace_class(). |
| 695 | */ |
| 696 | extern const bt_trace_class *bt_stream_class_borrow_trace_class_const( |
| 697 | const bt_stream_class *stream_class) __BT_NOEXCEPT; |
| 698 | |
| 699 | /*! @} */ |
| 700 | |
| 701 | /*! |
| 702 | @name Event class access |
| 703 | @{ |
| 704 | */ |
| 705 | |
| 706 | /*! |
| 707 | @brief |
| 708 | Returns the number of \bt_p_ev_cls contained in the stream |
| 709 | class \bt_p{stream_class}. |
| 710 | |
| 711 | @param[in] stream_class |
| 712 | Stream class of which to get the number of contained event classes. |
| 713 | |
| 714 | @returns |
| 715 | Number of contained event classes in \bt_p{stream_class}. |
| 716 | |
| 717 | @bt_pre_not_null{stream_class} |
| 718 | */ |
| 719 | extern uint64_t bt_stream_class_get_event_class_count( |
| 720 | const bt_stream_class *stream_class) __BT_NOEXCEPT; |
| 721 | |
| 722 | /*! |
| 723 | @brief |
| 724 | Borrows the \bt_ev_cls at index \bt_p{index} from the |
| 725 | stream class \bt_p{stream_class}. |
| 726 | |
| 727 | @param[in] stream_class |
| 728 | Stream class from which to borrow the event class at index |
| 729 | \bt_p{index}. |
| 730 | @param[in] index |
| 731 | Index of the event class to borrow from \bt_p{stream_class}. |
| 732 | |
| 733 | @returns |
| 734 | @parblock |
| 735 | \em Borrowed reference of the event class of |
| 736 | \bt_p{stream_class} at index \bt_p{index}. |
| 737 | |
| 738 | The returned pointer remains valid as long as \bt_p{stream_class} |
| 739 | exists. |
| 740 | @endparblock |
| 741 | |
| 742 | @bt_pre_not_null{stream_class} |
| 743 | @pre |
| 744 | \bt_p{index} is less than the number of event classes in |
| 745 | \bt_p{stream_class} (as returned by |
| 746 | bt_stream_class_get_event_class_count()). |
| 747 | |
| 748 | @sa bt_stream_class_get_event_class_count() — |
| 749 | Returns the number of event classes contained in a stream class. |
| 750 | @sa bt_stream_class_borrow_event_class_by_index_const() — |
| 751 | \c const version of this function. |
| 752 | */ |
| 753 | extern bt_event_class * |
| 754 | bt_stream_class_borrow_event_class_by_index( |
| 755 | bt_stream_class *stream_class, uint64_t index) __BT_NOEXCEPT; |
| 756 | |
| 757 | /*! |
| 758 | @brief |
| 759 | Borrows the \bt_ev_cls at index \bt_p{index} from the |
| 760 | stream class \bt_p{stream_class} (\c const version). |
| 761 | |
| 762 | See bt_stream_class_borrow_event_class_by_index(). |
| 763 | */ |
| 764 | extern const bt_event_class * |
| 765 | bt_stream_class_borrow_event_class_by_index_const( |
| 766 | const bt_stream_class *stream_class, uint64_t index) |
| 767 | __BT_NOEXCEPT; |
| 768 | |
| 769 | /*! |
| 770 | @brief |
| 771 | Borrows the \bt_ev_cls having the numeric ID \bt_p{id} from the |
| 772 | stream class \bt_p{stream_class}. |
| 773 | |
| 774 | If there's no event class having the numeric ID \bt_p{id} in |
| 775 | \bt_p{stream_class}, this function returns \c NULL. |
| 776 | |
| 777 | @param[in] stream_class |
| 778 | Stream class from which to borrow the event class having the |
| 779 | numeric ID \bt_p{id}. |
| 780 | @param[in] id |
| 781 | ID of the event class to borrow from \bt_p{stream_class}. |
| 782 | |
| 783 | @returns |
| 784 | @parblock |
| 785 | \em Borrowed reference of the event class of |
| 786 | \bt_p{stream_class} having the numeric ID \bt_p{id}, or \c NULL |
| 787 | if none. |
| 788 | |
| 789 | The returned pointer remains valid as long as \bt_p{stream_class} |
| 790 | exists. |
| 791 | @endparblock |
| 792 | |
| 793 | @bt_pre_not_null{stream_class} |
| 794 | |
| 795 | @sa bt_stream_class_borrow_event_class_by_id_const() — |
| 796 | \c const version of this function. |
| 797 | */ |
| 798 | extern bt_event_class * |
| 799 | bt_stream_class_borrow_event_class_by_id( |
| 800 | bt_stream_class *stream_class, uint64_t id) __BT_NOEXCEPT; |
| 801 | |
| 802 | /*! |
| 803 | @brief |
| 804 | Borrows the \bt_ev_cls having the numeric ID \bt_p{id} from the |
| 805 | stream class \bt_p{stream_class} (\c const version). |
| 806 | |
| 807 | See bt_stream_class_borrow_event_class_by_id(). |
| 808 | */ |
| 809 | extern const bt_event_class * |
| 810 | bt_stream_class_borrow_event_class_by_id_const( |
| 811 | const bt_stream_class *stream_class, uint64_t id) __BT_NOEXCEPT; |
| 812 | |
| 813 | /*! @} */ |
| 814 | |
| 815 | /*! |
| 816 | @name Properties |
| 817 | @{ |
| 818 | */ |
| 819 | |
| 820 | /*! |
| 821 | @brief |
| 822 | Returns the numeric ID of the stream class \bt_p{stream_class}. |
| 823 | |
| 824 | See the \ref api-tir-stream-cls-prop-id "numeric ID" property. |
| 825 | |
| 826 | @param[in] stream_class |
| 827 | Stream class of which to get the numeric ID. |
| 828 | |
| 829 | @returns |
| 830 | Numeric ID of \bt_p{stream_class}. |
| 831 | |
| 832 | @bt_pre_not_null{stream_class} |
| 833 | |
| 834 | @sa bt_stream_class_create_with_id() — |
| 835 | Creates a stream class with a specific numeric ID and adds it to a |
| 836 | trace class. |
| 837 | */ |
| 838 | extern uint64_t bt_stream_class_get_id( |
| 839 | const bt_stream_class *stream_class) __BT_NOEXCEPT; |
| 840 | |
| 841 | /*! |
| 842 | @brief |
| 843 | Status codes for bt_stream_class_set_name(). |
| 844 | */ |
| 845 | typedef enum bt_stream_class_set_name_status { |
| 846 | /*! |
| 847 | @brief |
| 848 | Success. |
| 849 | */ |
| 850 | BT_STREAM_CLASS_SET_NAME_STATUS_OK = __BT_FUNC_STATUS_OK, |
| 851 | |
| 852 | /*! |
| 853 | @brief |
| 854 | Out of memory. |
| 855 | */ |
| 856 | BT_STREAM_CLASS_SET_NAME_STATUS_MEMORY_ERROR = __BT_FUNC_STATUS_MEMORY_ERROR, |
| 857 | } bt_stream_class_set_name_status; |
| 858 | |
| 859 | /*! |
| 860 | @brief |
| 861 | Sets the name of the stream class \bt_p{stream_class} to |
| 862 | a copy of \bt_p{name}. |
| 863 | |
| 864 | See the \ref api-tir-stream-cls-prop-name "name" property. |
| 865 | |
| 866 | @param[in] stream_class |
| 867 | Stream class of which to set the name to \bt_p{name}. |
| 868 | @param[in] name |
| 869 | New name of \bt_p{stream_class} (copied). |
| 870 | |
| 871 | @retval #BT_STREAM_CLASS_SET_NAME_STATUS_OK |
| 872 | Success. |
| 873 | @retval #BT_STREAM_CLASS_SET_NAME_STATUS_MEMORY_ERROR |
| 874 | Out of memory. |
| 875 | |
| 876 | @bt_pre_not_null{stream_class} |
| 877 | @bt_pre_hot{stream_class} |
| 878 | @bt_pre_not_null{name} |
| 879 | |
| 880 | @sa bt_stream_class_get_name() — |
| 881 | Returns the name of a stream class. |
| 882 | */ |
| 883 | extern bt_stream_class_set_name_status bt_stream_class_set_name( |
| 884 | bt_stream_class *stream_class, const char *name) __BT_NOEXCEPT; |
| 885 | |
| 886 | /*! |
| 887 | @brief |
| 888 | Returns the name of the stream class \bt_p{stream_class}. |
| 889 | |
| 890 | See the \ref api-tir-stream-cls-prop-name "name" property. |
| 891 | |
| 892 | If \bt_p{stream_class} has no name, this function returns \c NULL. |
| 893 | |
| 894 | @param[in] stream_class |
| 895 | Stream class of which to get the name. |
| 896 | |
| 897 | @returns |
| 898 | @parblock |
| 899 | Name of \bt_p{stream_class}, or \c NULL if none. |
| 900 | |
| 901 | The returned pointer remains valid as long as \bt_p{stream_class} |
| 902 | is not modified. |
| 903 | @endparblock |
| 904 | |
| 905 | @bt_pre_not_null{stream_class} |
| 906 | |
| 907 | @sa bt_stream_class_set_name() — |
| 908 | Sets the name of a stream class. |
| 909 | */ |
| 910 | extern const char *bt_stream_class_get_name( |
| 911 | const bt_stream_class *stream_class) __BT_NOEXCEPT; |
| 912 | |
| 913 | /*! |
| 914 | @brief |
| 915 | Status codes for bt_stream_class_set_default_clock_class(). |
| 916 | */ |
| 917 | typedef enum bt_stream_class_set_default_clock_class_status { |
| 918 | /*! |
| 919 | @brief |
| 920 | Success. |
| 921 | */ |
| 922 | BT_STREAM_CLASS_SET_DEFAULT_CLOCK_CLASS_STATUS_OK = __BT_FUNC_STATUS_OK, |
| 923 | } bt_stream_class_set_default_clock_class_status; |
| 924 | |
| 925 | /*! |
| 926 | @brief |
| 927 | Sets the default \bt_clock_cls of the stream class |
| 928 | \bt_p{stream_class} to \bt_p{clock_class}. |
| 929 | |
| 930 | See the \ref api-tir-stream-cls-prop-def-clock-cls "default clock class" |
| 931 | property. |
| 932 | |
| 933 | @param[in] stream_class |
| 934 | Stream class of which to set the default clock class to |
| 935 | \bt_p{clock_class}. |
| 936 | @param[in] clock_class |
| 937 | New default clock class of \bt_p{stream_class}. |
| 938 | |
| 939 | @retval #BT_STREAM_CLASS_SET_DEFAULT_CLOCK_CLASS_STATUS_OK |
| 940 | Success. |
| 941 | |
| 942 | @bt_pre_not_null{stream_class} |
| 943 | @bt_pre_hot{stream_class} |
| 944 | @bt_pre_not_null{clock_class} |
| 945 | |
| 946 | @sa bt_stream_class_borrow_default_clock_class() — |
| 947 | Borrows the default clock class of a stream class. |
| 948 | @sa bt_stream_class_borrow_default_clock_class_const() — |
| 949 | Borrows the default clock class of a stream class (\c const version). |
| 950 | */ |
| 951 | extern bt_stream_class_set_default_clock_class_status |
| 952 | bt_stream_class_set_default_clock_class( |
| 953 | bt_stream_class *stream_class, |
| 954 | bt_clock_class *clock_class) __BT_NOEXCEPT; |
| 955 | |
| 956 | /*! |
| 957 | @brief |
| 958 | Borrows the default \bt_clock_cls from the stream class |
| 959 | \bt_p{stream_class}. |
| 960 | |
| 961 | See the \ref api-tir-stream-cls-prop-def-clock-cls "default clock class" |
| 962 | property. |
| 963 | |
| 964 | If \bt_p{stream_class} has no default clock class, this function |
| 965 | returns \c NULL. |
| 966 | |
| 967 | @param[in] stream_class |
| 968 | Stream class from which to borrow the default clock class. |
| 969 | |
| 970 | @returns |
| 971 | \em Borrowed reference of the default clock class of |
| 972 | \bt_p{stream_class}, or \c NULL if none. |
| 973 | |
| 974 | @bt_pre_not_null{stream_class} |
| 975 | |
| 976 | @sa bt_stream_class_set_default_clock_class() — |
| 977 | Sets the default clock class of a stream class. |
| 978 | @sa bt_stream_class_borrow_default_clock_class_const() — |
| 979 | \c const version of this function. |
| 980 | */ |
| 981 | extern bt_clock_class *bt_stream_class_borrow_default_clock_class( |
| 982 | bt_stream_class *stream_class) __BT_NOEXCEPT; |
| 983 | |
| 984 | /*! |
| 985 | @brief |
| 986 | Borrows the default \bt_clock_cls from the stream class |
| 987 | \bt_p{stream_class} (\c const version). |
| 988 | |
| 989 | See bt_stream_class_borrow_default_clock_class(). |
| 990 | */ |
| 991 | extern const bt_clock_class * |
| 992 | bt_stream_class_borrow_default_clock_class_const( |
| 993 | const bt_stream_class *stream_class) __BT_NOEXCEPT; |
| 994 | |
| 995 | /*! |
| 996 | @brief |
| 997 | Status codes for bt_stream_class_set_packet_context_field_class() |
| 998 | and bt_stream_class_set_event_common_context_field_class(). |
| 999 | */ |
| 1000 | typedef enum bt_stream_class_set_field_class_status { |
| 1001 | /*! |
| 1002 | @brief |
| 1003 | Success. |
| 1004 | */ |
| 1005 | BT_STREAM_CLASS_SET_FIELD_CLASS_STATUS_OK = __BT_FUNC_STATUS_OK, |
| 1006 | |
| 1007 | /*! |
| 1008 | @brief |
| 1009 | Out of memory. |
| 1010 | */ |
| 1011 | BT_STREAM_CLASS_SET_FIELD_CLASS_STATUS_MEMORY_ERROR = __BT_FUNC_STATUS_MEMORY_ERROR, |
| 1012 | } bt_stream_class_set_field_class_status; |
| 1013 | |
| 1014 | /*! |
| 1015 | @brief |
| 1016 | Sets the packet context \bt_fc of the stream class |
| 1017 | \bt_p{stream_class} to \bt_p{field_class}. |
| 1018 | |
| 1019 | See the \ref api-tir-stream-cls-prop-pc-fc "packet context field class" |
| 1020 | property. |
| 1021 | |
| 1022 | \bt_p{stream_class} must support packets (see |
| 1023 | bt_stream_class_set_supports_packets()). |
| 1024 | |
| 1025 | @param[in] stream_class |
| 1026 | Stream class of which to set the packet context field class to |
| 1027 | \bt_p{field_class}. |
| 1028 | @param[in] field_class |
| 1029 | New packet context field class of \bt_p{stream_class}. |
| 1030 | |
| 1031 | @retval #BT_STREAM_CLASS_SET_FIELD_CLASS_STATUS_OK |
| 1032 | Success. |
| 1033 | @retval #BT_STREAM_CLASS_SET_FIELD_CLASS_STATUS_MEMORY_ERROR |
| 1034 | Out of memory. |
| 1035 | |
| 1036 | @bt_pre_not_null{stream_class} |
| 1037 | @bt_pre_hot{stream_class} |
| 1038 | @pre |
| 1039 | <code>bt_stream_class_supports_packets(stream_class)</code> |
| 1040 | returns #BT_TRUE. |
| 1041 | @bt_pre_not_null{field_class} |
| 1042 | @bt_pre_is_struct_fc{field_class} |
| 1043 | @pre |
| 1044 | \bt_p{field_class}, or any of its contained field classes, |
| 1045 | is not already part of a stream class or of an \bt_ev_cls. |
| 1046 | @pre |
| 1047 | If any of the field classes recursively contained in |
| 1048 | \bt_p{field_class} has a |
| 1049 | \ref api-tir-fc-link "link to another field class", it must honor |
| 1050 | the field class link rules. |
| 1051 | @pre |
| 1052 | If any of the field classes recursively contained in |
| 1053 | \bt_p{field_class} has a |
| 1054 | \ref api-tir-fc-link "link to another field class", it must honor |
| 1055 | the field class link rules. |
| 1056 | |
| 1057 | @bt_post_success_frozen{field_class} |
| 1058 | |
| 1059 | @sa bt_stream_class_borrow_packet_context_field_class() — |
| 1060 | Borrows the packet context field class of a stream class. |
| 1061 | @sa bt_stream_class_borrow_packet_context_field_class_const() — |
| 1062 | Borrows the packet context field class of a stream class |
| 1063 | (\c const version). |
| 1064 | */ |
| 1065 | extern bt_stream_class_set_field_class_status |
| 1066 | bt_stream_class_set_packet_context_field_class( |
| 1067 | bt_stream_class *stream_class, |
| 1068 | bt_field_class *field_class) __BT_NOEXCEPT; |
| 1069 | |
| 1070 | /*! |
| 1071 | @brief |
| 1072 | Borrows the packet context \bt_fc from the stream class |
| 1073 | \bt_p{stream_class}. |
| 1074 | |
| 1075 | See the \ref api-tir-stream-cls-prop-pc-fc "packet context field class" |
| 1076 | property. |
| 1077 | |
| 1078 | If \bt_p{stream_class} has no packet context field class, this function |
| 1079 | returns \c NULL. |
| 1080 | |
| 1081 | @param[in] stream_class |
| 1082 | Stream class from which to borrow the packet context field class. |
| 1083 | |
| 1084 | @returns |
| 1085 | \em Borrowed reference of the packet context field class of |
| 1086 | \bt_p{stream_class}, or \c NULL if none. |
| 1087 | |
| 1088 | @bt_pre_not_null{stream_class} |
| 1089 | |
| 1090 | @sa bt_stream_class_set_packet_context_field_class() — |
| 1091 | Sets the packet context field class of a stream class. |
| 1092 | @sa bt_stream_class_borrow_packet_context_field_class_const() — |
| 1093 | \c const version of this function. |
| 1094 | */ |
| 1095 | extern bt_field_class * |
| 1096 | bt_stream_class_borrow_packet_context_field_class( |
| 1097 | bt_stream_class *stream_class) __BT_NOEXCEPT; |
| 1098 | |
| 1099 | /*! |
| 1100 | @brief |
| 1101 | Borrows the packet context \bt_fc from the stream class |
| 1102 | \bt_p{stream_class} (\c const version). |
| 1103 | |
| 1104 | See bt_stream_class_borrow_packet_context_field_class(). |
| 1105 | */ |
| 1106 | extern const bt_field_class * |
| 1107 | bt_stream_class_borrow_packet_context_field_class_const( |
| 1108 | const bt_stream_class *stream_class) __BT_NOEXCEPT; |
| 1109 | |
| 1110 | /*! |
| 1111 | @brief |
| 1112 | Sets the event common context \bt_fc of the stream class |
| 1113 | \bt_p{stream_class} to \bt_p{field_class}. |
| 1114 | |
| 1115 | See the \ref api-tir-stream-cls-prop-ecc-fc "event common context field class" |
| 1116 | property. |
| 1117 | |
| 1118 | @param[in] stream_class |
| 1119 | Stream class of which to set the event common context field class to |
| 1120 | \bt_p{field_class}. |
| 1121 | @param[in] field_class |
| 1122 | New event common context field class of \bt_p{stream_class}. |
| 1123 | |
| 1124 | @retval #BT_STREAM_CLASS_SET_FIELD_CLASS_STATUS_OK |
| 1125 | Success. |
| 1126 | @retval #BT_STREAM_CLASS_SET_FIELD_CLASS_STATUS_MEMORY_ERROR |
| 1127 | Out of memory. |
| 1128 | |
| 1129 | @bt_pre_not_null{stream_class} |
| 1130 | @bt_pre_hot{stream_class} |
| 1131 | @bt_pre_not_null{field_class} |
| 1132 | @bt_pre_is_struct_fc{field_class} |
| 1133 | @pre |
| 1134 | \bt_p{field_class}, or any of its contained field classes, |
| 1135 | is not already part of a stream class or of an \bt_ev_cls. |
| 1136 | @pre |
| 1137 | If any of the field classes recursively contained in |
| 1138 | \bt_p{field_class} has a |
| 1139 | \ref api-tir-fc-link "link to another field class", it must honor |
| 1140 | the field class link rules. |
| 1141 | |
| 1142 | @bt_post_success_frozen{field_class} |
| 1143 | |
| 1144 | @sa bt_stream_class_borrow_event_common_context_field_class() — |
| 1145 | Borrows the event common context field class of a stream class. |
| 1146 | @sa bt_stream_class_borrow_event_common_context_field_class_const() — |
| 1147 | Borrows the event common context field class of a stream class |
| 1148 | (\c const version). |
| 1149 | */ |
| 1150 | extern bt_stream_class_set_field_class_status |
| 1151 | bt_stream_class_set_event_common_context_field_class( |
| 1152 | bt_stream_class *stream_class, |
| 1153 | bt_field_class *field_class) __BT_NOEXCEPT; |
| 1154 | |
| 1155 | /*! |
| 1156 | @brief |
| 1157 | Borrows the event common context \bt_fc from the stream class |
| 1158 | \bt_p{stream_class}. |
| 1159 | |
| 1160 | See the \ref api-tir-stream-cls-prop-pc-fc "event common context field class" |
| 1161 | property. |
| 1162 | |
| 1163 | If \bt_p{stream_class} has no event common context field class, this |
| 1164 | function returns \c NULL. |
| 1165 | |
| 1166 | @param[in] stream_class |
| 1167 | Stream class from which to borrow the event common context |
| 1168 | field class. |
| 1169 | |
| 1170 | @returns |
| 1171 | \em Borrowed reference of the event common context field class of |
| 1172 | \bt_p{stream_class}, or \c NULL if none. |
| 1173 | |
| 1174 | @bt_pre_not_null{stream_class} |
| 1175 | |
| 1176 | @sa bt_stream_class_set_event_common_context_field_class() — |
| 1177 | Sets the event common context field class of a stream class. |
| 1178 | @sa bt_stream_class_borrow_event_common_context_field_class_const() — |
| 1179 | \c const version of this function. |
| 1180 | */ |
| 1181 | |
| 1182 | extern bt_field_class * |
| 1183 | bt_stream_class_borrow_event_common_context_field_class( |
| 1184 | bt_stream_class *stream_class) __BT_NOEXCEPT; |
| 1185 | |
| 1186 | /*! |
| 1187 | @brief |
| 1188 | Borrows the event common context \bt_fc from the stream class |
| 1189 | \bt_p{stream_class} (\c const version()). |
| 1190 | |
| 1191 | See bt_stream_class_borrow_event_common_context_field_class(). |
| 1192 | */ |
| 1193 | extern const bt_field_class * |
| 1194 | bt_stream_class_borrow_event_common_context_field_class_const( |
| 1195 | const bt_stream_class *stream_class) __BT_NOEXCEPT; |
| 1196 | |
| 1197 | /*! |
| 1198 | @brief |
| 1199 | Sets whether or not the stream class \bt_p{stream_class} |
| 1200 | automatically assigns a numeric ID to an \bt_ev_cls you create and |
| 1201 | add to it. |
| 1202 | |
| 1203 | See the \ref api-tir-stream-cls-prop-auto-ec-id "assigns automatic event class IDs?" |
| 1204 | property. |
| 1205 | |
| 1206 | @param[in] stream_class |
| 1207 | Stream class of which to set whether or not it assigns automatic |
| 1208 | event class IDs. |
| 1209 | @param[in] assigns_automatic_event_class_id |
| 1210 | #BT_TRUE to make \bt_p{stream_class} assign automatic event class |
| 1211 | IDs. |
| 1212 | |
| 1213 | @bt_pre_not_null{stream_class} |
| 1214 | @bt_pre_hot{stream_class} |
| 1215 | |
| 1216 | @sa bt_stream_class_assigns_automatic_event_class_id() — |
| 1217 | Returns whether or not a stream class automatically assigns |
| 1218 | event class IDs. |
| 1219 | */ |
| 1220 | extern void bt_stream_class_set_assigns_automatic_event_class_id( |
| 1221 | bt_stream_class *stream_class, |
| 1222 | bt_bool assigns_automatic_event_class_id) __BT_NOEXCEPT; |
| 1223 | |
| 1224 | /*! |
| 1225 | @brief |
| 1226 | Returns whether or not the stream class \bt_p{stream_class} |
| 1227 | automatically assigns a numeric ID to an \bt_ev_cls you create |
| 1228 | and add to it. |
| 1229 | |
| 1230 | See the \ref api-tir-stream-cls-prop-auto-ec-id "assigns automatic event class IDs?" |
| 1231 | property. |
| 1232 | |
| 1233 | @param[in] stream_class |
| 1234 | Stream class of which to get whether or not it assigns automatic |
| 1235 | event class IDs. |
| 1236 | |
| 1237 | @returns |
| 1238 | #BT_TRUE if \bt_p{stream_class} automatically |
| 1239 | assigns event class IDs. |
| 1240 | |
| 1241 | @bt_pre_not_null{stream_class} |
| 1242 | |
| 1243 | @sa bt_stream_class_set_assigns_automatic_event_class_id() — |
| 1244 | Sets whether or not a stream class automatically assigns |
| 1245 | event class IDs. |
| 1246 | */ |
| 1247 | extern bt_bool bt_stream_class_assigns_automatic_event_class_id( |
| 1248 | const bt_stream_class *stream_class) __BT_NOEXCEPT; |
| 1249 | |
| 1250 | /*! |
| 1251 | @brief |
| 1252 | Sets whether or not the stream class \bt_p{stream_class} |
| 1253 | automatically assigns a numeric ID to a \bt_stream you create from |
| 1254 | it. |
| 1255 | |
| 1256 | See the \ref api-tir-stream-cls-prop-auto-stream-id "assigns automatic stream IDs?" |
| 1257 | property. |
| 1258 | |
| 1259 | @param[in] stream_class |
| 1260 | Stream class of which to set whether or not it assigns automatic |
| 1261 | stream IDs. |
| 1262 | @param[in] assigns_automatic_stream_id |
| 1263 | #BT_TRUE to make \bt_p{stream_class} assign automatic stream |
| 1264 | IDs. |
| 1265 | |
| 1266 | @bt_pre_not_null{stream_class} |
| 1267 | @bt_pre_hot{stream_class} |
| 1268 | |
| 1269 | @sa bt_stream_class_assigns_automatic_stream_id() — |
| 1270 | Returns whether or not a stream class automatically assigns |
| 1271 | stream IDs. |
| 1272 | */ |
| 1273 | extern void bt_stream_class_set_assigns_automatic_stream_id( |
| 1274 | bt_stream_class *stream_class, |
| 1275 | bt_bool assigns_automatic_stream_id) __BT_NOEXCEPT; |
| 1276 | |
| 1277 | /*! |
| 1278 | @brief |
| 1279 | Returns whether or not the stream class \bt_p{stream_class} |
| 1280 | automatically assigns a numeric ID to a \bt_stream you create |
| 1281 | from it. |
| 1282 | |
| 1283 | See the \ref api-tir-stream-cls-prop-auto-stream-id "assigns automatic stream IDs?" |
| 1284 | property. |
| 1285 | |
| 1286 | @param[in] stream_class |
| 1287 | Stream class of which to get whether or not it assigns automatic |
| 1288 | stream IDs. |
| 1289 | |
| 1290 | @returns |
| 1291 | #BT_TRUE if \bt_p{stream_class} automatically assigns stream IDs. |
| 1292 | |
| 1293 | @bt_pre_not_null{stream_class} |
| 1294 | |
| 1295 | @sa bt_stream_class_set_assigns_automatic_stream_id() — |
| 1296 | Sets whether or not a stream class automatically assigns |
| 1297 | stream IDs. |
| 1298 | */ |
| 1299 | extern bt_bool bt_stream_class_assigns_automatic_stream_id( |
| 1300 | const bt_stream_class *stream_class) __BT_NOEXCEPT; |
| 1301 | |
| 1302 | /*! |
| 1303 | @brief |
| 1304 | Sets whether or not the instances (\bt_p_stream) of the |
| 1305 | stream class \bt_p{stream_class} have \bt_p_pkt and, if so, |
| 1306 | if those packets have beginning and/or end default |
| 1307 | \bt_p_cs. |
| 1308 | |
| 1309 | See the |
| 1310 | \ref api-tir-stream-cls-prop-supports-pkt "supports packets?", |
| 1311 | \ref api-tir-stream-cls-prop-pkt-beg-cs "packets have a beginning default clock snapshot?", |
| 1312 | and |
| 1313 | \ref api-tir-stream-cls-prop-pkt-end-cs "packets have an end default clock snapshot?" |
| 1314 | properties. |
| 1315 | |
| 1316 | @param[in] stream_class |
| 1317 | Stream class of which to set whether or not its streams have |
| 1318 | packets. |
| 1319 | @param[in] supports_packets |
| 1320 | #BT_TRUE to make the streams of \bt_p{stream_class} have packets. |
| 1321 | @param[in] with_beginning_default_clock_snapshot |
| 1322 | #BT_TRUE to make the packets of the streams of \bt_p{stream_class} |
| 1323 | have a beginning default clock snapshot. |
| 1324 | @param[in] with_end_default_clock_snapshot |
| 1325 | #BT_TRUE to make the packets of the streams of \bt_p{stream_class} |
| 1326 | have an end default clock snapshot. |
| 1327 | |
| 1328 | @bt_pre_not_null{stream_class} |
| 1329 | @bt_pre_hot{stream_class} |
| 1330 | @pre |
| 1331 | <strong>If \bt_p{with_beginning_default_clock_snapshot} is |
| 1332 | #BT_TRUE</strong>, |
| 1333 | \bt_p{supports_packets} is also #BT_TRUE. |
| 1334 | @pre |
| 1335 | <strong>If \bt_p{with_beginning_default_clock_snapshot} is |
| 1336 | #BT_TRUE</strong>, |
| 1337 | \bt_p{supports_packets} is also #BT_TRUE. |
| 1338 | @pre |
| 1339 | <strong>If \bt_p{with_beginning_default_clock_snapshot} or |
| 1340 | \bt_p{with_end_default_clock_snapshot} is #BT_TRUE</strong>, |
| 1341 | \bt_p{stream_class} has a |
| 1342 | \ref api-tir-stream-cls-prop-def-clock-cls "default clock class". |
| 1343 | |
| 1344 | @sa bt_stream_class_supports_packets() — |
| 1345 | Returns whether or not a stream class's streams have packets. |
| 1346 | @sa bt_stream_class_packets_have_beginning_default_clock_snapshot() — |
| 1347 | Returns whether or not the packets of a stream class's streams |
| 1348 | have a beginning default clock snapshot. |
| 1349 | @sa bt_stream_class_packets_have_end_default_clock_snapshot() — |
| 1350 | Returns whether or not the packets of a stream class's streams |
| 1351 | have an end default clock snapshot. |
| 1352 | */ |
| 1353 | extern void bt_stream_class_set_supports_packets( |
| 1354 | bt_stream_class *stream_class, bt_bool supports_packets, |
| 1355 | bt_bool with_beginning_default_clock_snapshot, |
| 1356 | bt_bool with_end_default_clock_snapshot) __BT_NOEXCEPT; |
| 1357 | |
| 1358 | /*! |
| 1359 | @brief |
| 1360 | Returns whether or not the instances (\bt_p_stream) of the |
| 1361 | stream class \bt_p{stream_class} have \bt_p_pkt. |
| 1362 | |
| 1363 | See the \ref api-tir-stream-cls-prop-supports-pkt "supports packets?" |
| 1364 | property. |
| 1365 | |
| 1366 | @param[in] stream_class |
| 1367 | Stream class of which to get whether or not its streams have |
| 1368 | packets. |
| 1369 | |
| 1370 | @returns |
| 1371 | #BT_TRUE if the streams of \bt_p{stream_class} have packets. |
| 1372 | |
| 1373 | @bt_pre_not_null{stream_class} |
| 1374 | |
| 1375 | @sa bt_stream_class_set_supports_packets() — |
| 1376 | Sets whether or not a stream class's streams have packets. |
| 1377 | */ |
| 1378 | extern bt_bool bt_stream_class_supports_packets( |
| 1379 | const bt_stream_class *stream_class) __BT_NOEXCEPT; |
| 1380 | |
| 1381 | /*! |
| 1382 | @brief |
| 1383 | Returns whether or not the \bt_p_pkt of the instances (\bt_p_stream) |
| 1384 | of the stream class \bt_p{stream_class} have a beginning |
| 1385 | default \bt_cs. |
| 1386 | |
| 1387 | See the |
| 1388 | \ref api-tir-stream-cls-prop-pkt-beg-cs "packets have a beginning default clock snapshot?" |
| 1389 | property. |
| 1390 | |
| 1391 | @param[in] stream_class |
| 1392 | Stream class of which to get whether or not its streams's packets |
| 1393 | have a beginning default clock snapshot. |
| 1394 | |
| 1395 | @returns |
| 1396 | #BT_TRUE if the packets of the streams of \bt_p{stream_class} have a |
| 1397 | beginning default clock snapshot. |
| 1398 | |
| 1399 | @bt_pre_not_null{stream_class} |
| 1400 | |
| 1401 | @sa bt_stream_class_set_supports_packets() — |
| 1402 | Sets whether or not a stream class's streams have packets. |
| 1403 | @sa bt_stream_class_packets_have_end_default_clock_snapshot() — |
| 1404 | Returns whether or not the packets of a stream class's streams |
| 1405 | have an end default clock snapshot. |
| 1406 | */ |
| 1407 | extern bt_bool bt_stream_class_packets_have_beginning_default_clock_snapshot( |
| 1408 | const bt_stream_class *stream_class) __BT_NOEXCEPT; |
| 1409 | |
| 1410 | /*! |
| 1411 | @brief |
| 1412 | Returns whether or not the \bt_p_pkt of the instances (\bt_p_stream) |
| 1413 | of the stream class \bt_p{stream_class} have an end |
| 1414 | default \bt_cs. |
| 1415 | |
| 1416 | See the |
| 1417 | \ref api-tir-stream-cls-prop-pkt-end-cs "packets have an end default clock snapshot?" |
| 1418 | property. |
| 1419 | |
| 1420 | @param[in] stream_class |
| 1421 | Stream class of which to get whether or not its streams's packets |
| 1422 | have an end default clock snapshot. |
| 1423 | |
| 1424 | @returns |
| 1425 | #BT_TRUE if the packets of the streams of \bt_p{stream_class} have |
| 1426 | an end default clock snapshot. |
| 1427 | |
| 1428 | @bt_pre_not_null{stream_class} |
| 1429 | |
| 1430 | @sa bt_stream_class_set_supports_packets() — |
| 1431 | Sets whether or not a stream class's streams have packets. |
| 1432 | @sa bt_stream_class_packets_have_beginning_default_clock_snapshot() — |
| 1433 | Returns whether or not the packets of a stream class's streams |
| 1434 | have a beginning default clock snapshot. |
| 1435 | */ |
| 1436 | extern bt_bool bt_stream_class_packets_have_end_default_clock_snapshot( |
| 1437 | const bt_stream_class *stream_class) __BT_NOEXCEPT; |
| 1438 | |
| 1439 | /*! |
| 1440 | @brief |
| 1441 | Sets whether or not the instances (\bt_p_stream) of the |
| 1442 | stream class \bt_p{stream_class} can have discarded events and, |
| 1443 | if so, if the \bt_p_disc_ev_msg of those streams have |
| 1444 | beginning and end default \bt_p_cs. |
| 1445 | |
| 1446 | See the |
| 1447 | \ref api-tir-stream-cls-prop-supports-disc-ev "supports discarded events?" |
| 1448 | and |
| 1449 | \ref api-tir-stream-cls-prop-disc-ev-cs "discarded events have default clock snapshots?" |
| 1450 | properties. |
| 1451 | |
| 1452 | @param[in] stream_class |
| 1453 | Stream class of which to set whether or not its streams can have |
| 1454 | discarded events. |
| 1455 | @param[in] supports_discarded_events |
| 1456 | #BT_TRUE to make the streams of \bt_p{stream_class} be able to |
| 1457 | have discarded events. |
| 1458 | @param[in] with_default_clock_snapshots |
| 1459 | #BT_TRUE to make the discarded events messages the streams of |
| 1460 | \bt_p{stream_class} have beginning and end default clock snapshots. |
| 1461 | |
| 1462 | @bt_pre_not_null{stream_class} |
| 1463 | @bt_pre_hot{stream_class} |
| 1464 | @pre |
| 1465 | <strong>If \bt_p{with_default_clock_snapshots} is #BT_TRUE</strong>, |
| 1466 | \bt_p{supports_discarded_events} is also #BT_TRUE. |
| 1467 | @pre |
| 1468 | <strong>If \bt_p{with_default_clock_snapshots} is #BT_TRUE</strong>, |
| 1469 | \bt_p{stream_class} has a |
| 1470 | \ref api-tir-stream-cls-prop-def-clock-cls "default clock class". |
| 1471 | |
| 1472 | @sa bt_stream_class_supports_discarded_events() — |
| 1473 | Returns whether or not a stream class's streams can have |
| 1474 | discarded events. |
| 1475 | @sa bt_stream_class_discarded_events_have_default_clock_snapshots() — |
| 1476 | Returns whether or not the discarded events messages of a |
| 1477 | stream class's streams have beginning and end default clock |
| 1478 | snapshots. |
| 1479 | */ |
| 1480 | extern void bt_stream_class_set_supports_discarded_events( |
| 1481 | bt_stream_class *stream_class, |
| 1482 | bt_bool supports_discarded_events, |
| 1483 | bt_bool with_default_clock_snapshots) __BT_NOEXCEPT; |
| 1484 | |
| 1485 | /*! |
| 1486 | @brief |
| 1487 | Returns whether or not the instances (\bt_p_stream) of the |
| 1488 | stream class \bt_p{stream_class} can have discarded events. |
| 1489 | |
| 1490 | See the |
| 1491 | \ref api-tir-stream-cls-prop-supports-disc-ev "supports discarded events?" |
| 1492 | property. |
| 1493 | |
| 1494 | @param[in] stream_class |
| 1495 | Stream class of which to get whether or not its streams can have |
| 1496 | discarded events. |
| 1497 | |
| 1498 | @returns |
| 1499 | #BT_TRUE if the streams of \bt_p{stream_class} can have discarded |
| 1500 | events. |
| 1501 | |
| 1502 | @bt_pre_not_null{stream_class} |
| 1503 | |
| 1504 | @sa bt_stream_class_set_supports_discarded_events() — |
| 1505 | Sets whether or not a stream class's streams can have discarded |
| 1506 | events. |
| 1507 | */ |
| 1508 | extern bt_bool bt_stream_class_supports_discarded_events( |
| 1509 | const bt_stream_class *stream_class) __BT_NOEXCEPT; |
| 1510 | |
| 1511 | /*! |
| 1512 | @brief |
| 1513 | Returns whether or not the \bt_p_disc_ev_msg of the instances |
| 1514 | (\bt_p_stream) of the stream class \bt_p{stream_class} have |
| 1515 | beginning and end default \bt_p_cs. |
| 1516 | |
| 1517 | See the |
| 1518 | \ref api-tir-stream-cls-prop-disc-ev-cs "discarded events have default clock snapshots?" |
| 1519 | property. |
| 1520 | |
| 1521 | @param[in] stream_class |
| 1522 | Stream class of which to get whether or not its streams's discarded |
| 1523 | events messages have a beginning and end default clock snapshots. |
| 1524 | |
| 1525 | @returns |
| 1526 | #BT_TRUE if the discarded events messages of the streams of |
| 1527 | \bt_p{stream_class} have beginning and end default clock snapshots. |
| 1528 | |
| 1529 | @bt_pre_not_null{stream_class} |
| 1530 | |
| 1531 | @sa bt_stream_class_set_supports_discarded_events() — |
| 1532 | Sets whether or not a stream class's streams can have discarded |
| 1533 | events. |
| 1534 | */ |
| 1535 | extern bt_bool bt_stream_class_discarded_events_have_default_clock_snapshots( |
| 1536 | const bt_stream_class *stream_class) __BT_NOEXCEPT; |
| 1537 | |
| 1538 | /*! |
| 1539 | @brief |
| 1540 | Sets whether or not the instances (\bt_p_stream) of the |
| 1541 | stream class \bt_p{stream_class} can have discarded packets and, |
| 1542 | if so, if the \bt_p_disc_pkt_msg of those streams have |
| 1543 | beginning and end default \bt_p_cs. |
| 1544 | |
| 1545 | See the |
| 1546 | \ref api-tir-stream-cls-prop-supports-disc-pkt "supports discarded packets?" |
| 1547 | and |
| 1548 | \ref api-tir-stream-cls-prop-disc-pkt-cs "discarded packets have default clock snapshots?" |
| 1549 | properties. |
| 1550 | |
| 1551 | \bt_p{stream_class} must support packets (see |
| 1552 | bt_stream_class_set_supports_packets()). |
| 1553 | |
| 1554 | @param[in] stream_class |
| 1555 | Stream class of which to set whether or not its streams can have |
| 1556 | discarded packets. |
| 1557 | @param[in] supports_discarded_packets |
| 1558 | #BT_TRUE to make the streams of \bt_p{stream_class} be able to |
| 1559 | have discarded packets. |
| 1560 | @param[in] with_default_clock_snapshots |
| 1561 | #BT_TRUE to make the discarded packets messages the streams of |
| 1562 | \bt_p{stream_class} have beginning and end default clock snapshots. |
| 1563 | |
| 1564 | @bt_pre_not_null{stream_class} |
| 1565 | @bt_pre_hot{stream_class} |
| 1566 | @pre |
| 1567 | <code>bt_stream_class_supports_packets(stream_class)</code> |
| 1568 | returns #BT_TRUE. |
| 1569 | @pre |
| 1570 | <strong>If \bt_p{with_default_clock_snapshots} is #BT_TRUE</strong>, |
| 1571 | \bt_p{supports_discarded_packets} is also #BT_TRUE. |
| 1572 | @pre |
| 1573 | <strong>If \bt_p{with_default_clock_snapshots} is #BT_TRUE</strong>, |
| 1574 | \bt_p{stream_class} has a |
| 1575 | \ref api-tir-stream-cls-prop-def-clock-cls "default clock class". |
| 1576 | |
| 1577 | @sa bt_stream_class_supports_discarded_packets() — |
| 1578 | Returns whether or not a stream class's streams can have |
| 1579 | discarded packets. |
| 1580 | @sa bt_stream_class_discarded_packets_have_default_clock_snapshots() — |
| 1581 | Returns whether or not the discarded packets messages of a |
| 1582 | stream class's streams have beginning and end default clock |
| 1583 | snapshots. |
| 1584 | */ |
| 1585 | extern void bt_stream_class_set_supports_discarded_packets( |
| 1586 | bt_stream_class *stream_class, |
| 1587 | bt_bool supports_discarded_packets, |
| 1588 | bt_bool with_default_clock_snapshots) __BT_NOEXCEPT; |
| 1589 | |
| 1590 | /*! |
| 1591 | @brief |
| 1592 | Returns whether or not the instances (\bt_p_stream) of the |
| 1593 | stream class \bt_p{stream_class} can have discarded packets. |
| 1594 | |
| 1595 | See the |
| 1596 | \ref api-tir-stream-cls-prop-supports-disc-pkt "supports discarded packets?" |
| 1597 | property. |
| 1598 | |
| 1599 | @param[in] stream_class |
| 1600 | Stream class of which to get whether or not its streams can have |
| 1601 | discarded packets. |
| 1602 | |
| 1603 | @returns |
| 1604 | #BT_TRUE if the streams of \bt_p{stream_class} can have discarded |
| 1605 | packets. |
| 1606 | |
| 1607 | @bt_pre_not_null{stream_class} |
| 1608 | |
| 1609 | @sa bt_stream_class_set_supports_discarded_packets() — |
| 1610 | Sets whether or not a stream class's streams can have discarded |
| 1611 | packets. |
| 1612 | */ |
| 1613 | extern bt_bool bt_stream_class_supports_discarded_packets( |
| 1614 | const bt_stream_class *stream_class) __BT_NOEXCEPT; |
| 1615 | |
| 1616 | /*! |
| 1617 | @brief |
| 1618 | Returns whether or not the \bt_p_disc_pkt_msg of the instances |
| 1619 | (\bt_p_stream) of the stream class \bt_p{stream_class} have |
| 1620 | beginning and end default \bt_p_cs. |
| 1621 | |
| 1622 | See the |
| 1623 | \ref api-tir-stream-cls-prop-disc-ev-cs "discarded packets have default clock snapshots?" |
| 1624 | property. |
| 1625 | |
| 1626 | @param[in] stream_class |
| 1627 | Stream class of which to get whether or not its streams's discarded |
| 1628 | packets messages have a beginning and end default clock snapshots. |
| 1629 | |
| 1630 | @returns |
| 1631 | #BT_TRUE if the discarded packets messages of the streams of |
| 1632 | \bt_p{stream_class} have beginning and end default clock snapshots. |
| 1633 | |
| 1634 | @bt_pre_not_null{stream_class} |
| 1635 | |
| 1636 | @sa bt_stream_class_set_supports_discarded_packets() — |
| 1637 | Sets whether or not a stream class's streams can have discarded |
| 1638 | packets. |
| 1639 | */ |
| 1640 | extern bt_bool bt_stream_class_discarded_packets_have_default_clock_snapshots( |
| 1641 | const bt_stream_class *stream_class) __BT_NOEXCEPT; |
| 1642 | |
| 1643 | /*! |
| 1644 | @brief |
| 1645 | Sets the user attributes of the stream class \bt_p{stream_class} to |
| 1646 | \bt_p{user_attributes}. |
| 1647 | |
| 1648 | See the \ref api-tir-stream-cls-prop-user-attrs "user attributes" |
| 1649 | property. |
| 1650 | |
| 1651 | @note |
| 1652 | When you create a default stream class with bt_stream_class_create() |
| 1653 | or bt_stream_class_create_with_id(), the stream class's initial user |
| 1654 | attributes is an empty \bt_map_val. Therefore you can borrow it with |
| 1655 | bt_stream_class_borrow_user_attributes() and fill it directly |
| 1656 | instead of setting a new one with this function. |
| 1657 | |
| 1658 | @param[in] stream_class |
| 1659 | Stream class of which to set the user attributes to |
| 1660 | \bt_p{user_attributes}. |
| 1661 | @param[in] user_attributes |
| 1662 | New user attributes of \bt_p{stream_class}. |
| 1663 | |
| 1664 | @bt_pre_not_null{stream_class} |
| 1665 | @bt_pre_hot{stream_class} |
| 1666 | @bt_pre_not_null{user_attributes} |
| 1667 | @bt_pre_is_map_val{user_attributes} |
| 1668 | |
| 1669 | @sa bt_stream_class_borrow_user_attributes() — |
| 1670 | Borrows the user attributes of a stream class. |
| 1671 | */ |
| 1672 | extern void bt_stream_class_set_user_attributes( |
| 1673 | bt_stream_class *stream_class, |
| 1674 | const bt_value *user_attributes) __BT_NOEXCEPT; |
| 1675 | |
| 1676 | /*! |
| 1677 | @brief |
| 1678 | Borrows the user attributes of the stream class \bt_p{stream_class}. |
| 1679 | |
| 1680 | See the \ref api-tir-stream-cls-prop-user-attrs "user attributes" |
| 1681 | property. |
| 1682 | |
| 1683 | @note |
| 1684 | When you create a default stream class with bt_stream_class_create() |
| 1685 | or bt_stream_class_create_with_id(), the stream class's initial user |
| 1686 | attributes is an empty \bt_map_val. |
| 1687 | |
| 1688 | @param[in] stream_class |
| 1689 | Stream class from which to borrow the user attributes. |
| 1690 | |
| 1691 | @returns |
| 1692 | User attributes of \bt_p{stream_class} (a \bt_map_val). |
| 1693 | |
| 1694 | @bt_pre_not_null{stream_class} |
| 1695 | |
| 1696 | @sa bt_stream_class_set_user_attributes() — |
| 1697 | Sets the user attributes of a stream class. |
| 1698 | @sa bt_stream_class_borrow_user_attributes_const() — |
| 1699 | \c const version of this function. |
| 1700 | */ |
| 1701 | extern bt_value *bt_stream_class_borrow_user_attributes( |
| 1702 | bt_stream_class *stream_class) __BT_NOEXCEPT; |
| 1703 | |
| 1704 | /*! |
| 1705 | @brief |
| 1706 | Borrows the user attributes of the stream class \bt_p{stream_class} |
| 1707 | (\c const version). |
| 1708 | |
| 1709 | See bt_stream_class_borrow_user_attributes(). |
| 1710 | */ |
| 1711 | extern const bt_value *bt_stream_class_borrow_user_attributes_const( |
| 1712 | const bt_stream_class *stream_class) __BT_NOEXCEPT; |
| 1713 | |
| 1714 | /*! @} */ |
| 1715 | |
| 1716 | /*! |
| 1717 | @name Reference count |
| 1718 | @{ |
| 1719 | */ |
| 1720 | |
| 1721 | /*! |
| 1722 | @brief |
| 1723 | Increments the \ref api-fund-shared-object "reference count" of |
| 1724 | the stream class \bt_p{stream_class}. |
| 1725 | |
| 1726 | @param[in] stream_class |
| 1727 | @parblock |
| 1728 | Stream class of which to increment the reference count. |
| 1729 | |
| 1730 | Can be \c NULL. |
| 1731 | @endparblock |
| 1732 | |
| 1733 | @sa bt_stream_class_put_ref() — |
| 1734 | Decrements the reference count of a stream class. |
| 1735 | */ |
| 1736 | extern void bt_stream_class_get_ref( |
| 1737 | const bt_stream_class *stream_class) __BT_NOEXCEPT; |
| 1738 | |
| 1739 | /*! |
| 1740 | @brief |
| 1741 | Decrements the \ref api-fund-shared-object "reference count" of |
| 1742 | the stream class \bt_p{stream_class}. |
| 1743 | |
| 1744 | @param[in] stream_class |
| 1745 | @parblock |
| 1746 | Stream class of which to decrement the reference count. |
| 1747 | |
| 1748 | Can be \c NULL. |
| 1749 | @endparblock |
| 1750 | |
| 1751 | @sa bt_stream_class_get_ref() — |
| 1752 | Increments the reference count of a stream class. |
| 1753 | */ |
| 1754 | extern void bt_stream_class_put_ref( |
| 1755 | const bt_stream_class *stream_class) __BT_NOEXCEPT; |
| 1756 | |
| 1757 | /*! |
| 1758 | @brief |
| 1759 | Decrements the reference count of the stream class |
| 1760 | \bt_p{_stream_class}, and then sets \bt_p{_stream_class} to \c NULL. |
| 1761 | |
| 1762 | @param _stream_class |
| 1763 | @parblock |
| 1764 | Stream class of which to decrement the reference count. |
| 1765 | |
| 1766 | Can contain \c NULL. |
| 1767 | @endparblock |
| 1768 | |
| 1769 | @bt_pre_assign_expr{_stream_class} |
| 1770 | */ |
| 1771 | #define BT_STREAM_CLASS_PUT_REF_AND_RESET(_stream_class) \ |
| 1772 | do { \ |
| 1773 | bt_stream_class_put_ref(_stream_class); \ |
| 1774 | (_stream_class) = NULL; \ |
| 1775 | } while (0) |
| 1776 | |
| 1777 | /*! |
| 1778 | @brief |
| 1779 | Decrements the reference count of the stream class \bt_p{_dst}, sets |
| 1780 | \bt_p{_dst} to \bt_p{_src}, and then sets \bt_p{_src} to \c NULL. |
| 1781 | |
| 1782 | This macro effectively moves a stream class reference from the expression |
| 1783 | \bt_p{_src} to the expression \bt_p{_dst}, putting the existing |
| 1784 | \bt_p{_dst} reference. |
| 1785 | |
| 1786 | @param _dst |
| 1787 | @parblock |
| 1788 | Destination expression. |
| 1789 | |
| 1790 | Can contain \c NULL. |
| 1791 | @endparblock |
| 1792 | @param _src |
| 1793 | @parblock |
| 1794 | Source expression. |
| 1795 | |
| 1796 | Can contain \c NULL. |
| 1797 | @endparblock |
| 1798 | |
| 1799 | @bt_pre_assign_expr{_dst} |
| 1800 | @bt_pre_assign_expr{_src} |
| 1801 | */ |
| 1802 | #define BT_STREAM_CLASS_MOVE_REF(_dst, _src) \ |
| 1803 | do { \ |
| 1804 | bt_stream_class_put_ref(_dst); \ |
| 1805 | (_dst) = (_src); \ |
| 1806 | (_src) = NULL; \ |
| 1807 | } while (0) |
| 1808 | |
| 1809 | /*! @} */ |
| 1810 | |
| 1811 | /*! @} */ |
| 1812 | |
| 1813 | #ifdef __cplusplus |
| 1814 | } |
| 1815 | #endif |
| 1816 | |
| 1817 | #endif /* BABELTRACE2_TRACE_IR_STREAM_CLASS_H */ |