| 1 | /* |
| 2 | * event.c |
| 3 | * |
| 4 | * Babeltrace CTF IR - Event |
| 5 | * |
| 6 | * Copyright 2013, 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
| 7 | * |
| 8 | * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com> |
| 9 | * |
| 10 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 11 | * of this software and associated documentation files (the "Software"), to deal |
| 12 | * in the Software without restriction, including without limitation the rights |
| 13 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 14 | * copies of the Software, and to permit persons to whom the Software is |
| 15 | * furnished to do so, subject to the following conditions: |
| 16 | * |
| 17 | * The above copyright notice and this permission notice shall be included in |
| 18 | * all copies or substantial portions of the Software. |
| 19 | * |
| 20 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 21 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 22 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 23 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 24 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 25 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 26 | * SOFTWARE. |
| 27 | */ |
| 28 | |
| 29 | #define BT_LOG_TAG "EVENT" |
| 30 | #include <babeltrace/lib-logging-internal.h> |
| 31 | |
| 32 | #include <babeltrace/ctf-ir/fields-internal.h> |
| 33 | #include <babeltrace/ctf-ir/field-types-internal.h> |
| 34 | #include <babeltrace/ctf-ir/clock-class.h> |
| 35 | #include <babeltrace/ctf-ir/clock-value.h> |
| 36 | #include <babeltrace/ctf-ir/clock-value-internal.h> |
| 37 | #include <babeltrace/ctf-ir/clock-class-internal.h> |
| 38 | #include <babeltrace/ctf-ir/event-internal.h> |
| 39 | #include <babeltrace/ctf-ir/event-class.h> |
| 40 | #include <babeltrace/ctf-ir/event-class-internal.h> |
| 41 | #include <babeltrace/ctf-ir/stream-class.h> |
| 42 | #include <babeltrace/ctf-ir/stream-class-internal.h> |
| 43 | #include <babeltrace/ctf-ir/stream-internal.h> |
| 44 | #include <babeltrace/ctf-ir/packet.h> |
| 45 | #include <babeltrace/ctf-ir/packet-internal.h> |
| 46 | #include <babeltrace/ctf-ir/trace-internal.h> |
| 47 | #include <babeltrace/ctf-ir/validation-internal.h> |
| 48 | #include <babeltrace/ctf-ir/packet-internal.h> |
| 49 | #include <babeltrace/ctf-ir/utils.h> |
| 50 | #include <babeltrace/ctf-writer/serialize-internal.h> |
| 51 | #include <babeltrace/ctf-writer/clock-internal.h> |
| 52 | #include <babeltrace/ref.h> |
| 53 | #include <babeltrace/ctf-ir/attributes-internal.h> |
| 54 | #include <babeltrace/compiler-internal.h> |
| 55 | #include <inttypes.h> |
| 56 | |
| 57 | static |
| 58 | void bt_event_destroy(struct bt_object *obj); |
| 59 | |
| 60 | struct bt_event *bt_event_create(struct bt_event_class *event_class) |
| 61 | { |
| 62 | int ret; |
| 63 | enum bt_validation_flag validation_flags = |
| 64 | BT_VALIDATION_FLAG_STREAM | |
| 65 | BT_VALIDATION_FLAG_EVENT; |
| 66 | struct bt_event *event = NULL; |
| 67 | struct bt_trace *trace = NULL; |
| 68 | struct bt_stream_class *stream_class = NULL; |
| 69 | struct bt_field_type *packet_header_type = NULL; |
| 70 | struct bt_field_type *packet_context_type = NULL; |
| 71 | struct bt_field_type *event_header_type = NULL; |
| 72 | struct bt_field_type *stream_event_ctx_type = NULL; |
| 73 | struct bt_field_type *event_context_type = NULL; |
| 74 | struct bt_field_type *event_payload_type = NULL; |
| 75 | struct bt_field *event_header = NULL; |
| 76 | struct bt_field *stream_event_context = NULL; |
| 77 | struct bt_field *event_context = NULL; |
| 78 | struct bt_field *event_payload = NULL; |
| 79 | struct bt_value *environment = NULL; |
| 80 | struct bt_validation_output validation_output = { 0 }; |
| 81 | int trace_valid = 0; |
| 82 | struct bt_clock_class *expected_clock_class = NULL; |
| 83 | |
| 84 | BT_LOGD("Creating event object: event-class-addr=%p, " |
| 85 | "event-class-name=\"%s\", event-class-id=%" PRId64, |
| 86 | event_class, bt_event_class_get_name(event_class), |
| 87 | bt_event_class_get_id(event_class)); |
| 88 | |
| 89 | if (!event_class) { |
| 90 | BT_LOGW_STR("Invalid parameter: event class is NULL."); |
| 91 | goto error; |
| 92 | } |
| 93 | |
| 94 | stream_class = bt_event_class_get_stream_class(event_class); |
| 95 | |
| 96 | /* |
| 97 | * We disallow the creation of an event if its event class has not been |
| 98 | * associated to a stream class. |
| 99 | */ |
| 100 | if (!stream_class) { |
| 101 | BT_LOGW_STR("Event class is not part of a stream class."); |
| 102 | goto error; |
| 103 | } |
| 104 | |
| 105 | /* The event class was frozen when added to its stream class */ |
| 106 | assert(event_class->frozen); |
| 107 | |
| 108 | if (!stream_class->frozen) { |
| 109 | if (stream_class->clock) { |
| 110 | expected_clock_class = |
| 111 | bt_get(stream_class->clock->clock_class); |
| 112 | } |
| 113 | |
| 114 | /* |
| 115 | * Because this function freezes the stream class, |
| 116 | * validate that this stream class contains at most a |
| 117 | * single clock class so that we set its expected clock |
| 118 | * class for future checks. |
| 119 | */ |
| 120 | ret = bt_stream_class_validate_single_clock_class( |
| 121 | stream_class, &expected_clock_class); |
| 122 | if (ret) { |
| 123 | BT_LOGW("Event class's stream class or one of its event " |
| 124 | "classes contains a field type which is not " |
| 125 | "recursively mapped to the expected " |
| 126 | "clock class: " |
| 127 | "stream-class-addr=%p, " |
| 128 | "stream-class-id=%" PRId64 ", " |
| 129 | "stream-class-name=\"%s\", " |
| 130 | "expected-clock-class-addr=%p, " |
| 131 | "expected-clock-class-name=\"%s\"", |
| 132 | stream_class, bt_stream_class_get_id(stream_class), |
| 133 | bt_stream_class_get_name(stream_class), |
| 134 | expected_clock_class, |
| 135 | expected_clock_class ? |
| 136 | bt_clock_class_get_name(expected_clock_class) : |
| 137 | NULL); |
| 138 | goto error; |
| 139 | } |
| 140 | } |
| 141 | |
| 142 | /* Validate the trace (if any), the stream class, and the event class */ |
| 143 | trace = bt_stream_class_get_trace(stream_class); |
| 144 | if (trace) { |
| 145 | BT_LOGD_STR("Event's class is part of a trace."); |
| 146 | packet_header_type = bt_trace_get_packet_header_type(trace); |
| 147 | trace_valid = trace->valid; |
| 148 | assert(trace_valid); |
| 149 | environment = trace->environment; |
| 150 | } |
| 151 | |
| 152 | packet_context_type = bt_stream_class_get_packet_context_type( |
| 153 | stream_class); |
| 154 | event_header_type = bt_stream_class_get_event_header_type( |
| 155 | stream_class); |
| 156 | stream_event_ctx_type = bt_stream_class_get_event_context_type( |
| 157 | stream_class); |
| 158 | event_context_type = bt_event_class_get_context_type(event_class); |
| 159 | event_payload_type = bt_event_class_get_payload_type(event_class); |
| 160 | ret = bt_validate_class_types(environment, packet_header_type, |
| 161 | packet_context_type, event_header_type, stream_event_ctx_type, |
| 162 | event_context_type, event_payload_type, trace_valid, |
| 163 | stream_class->valid, event_class->valid, |
| 164 | &validation_output, validation_flags); |
| 165 | BT_PUT(packet_header_type); |
| 166 | BT_PUT(packet_context_type); |
| 167 | BT_PUT(event_header_type); |
| 168 | BT_PUT(stream_event_ctx_type); |
| 169 | BT_PUT(event_context_type); |
| 170 | BT_PUT(event_payload_type); |
| 171 | if (ret) { |
| 172 | /* |
| 173 | * This means something went wrong during the validation |
| 174 | * process, not that the objects are invalid. |
| 175 | */ |
| 176 | BT_LOGE("Failed to validate event and parents: ret=%d", ret); |
| 177 | goto error; |
| 178 | } |
| 179 | |
| 180 | if ((validation_output.valid_flags & validation_flags) != |
| 181 | validation_flags) { |
| 182 | /* Invalid trace/stream class/event class */ |
| 183 | BT_LOGW("Invalid trace, stream class, or event class: " |
| 184 | "valid-flags=0x%x", validation_output.valid_flags); |
| 185 | goto error; |
| 186 | } |
| 187 | |
| 188 | /* |
| 189 | * At this point we know the trace (if associated to the stream |
| 190 | * class), the stream class, and the event class, with their |
| 191 | * current types, are valid. We may proceed with creating |
| 192 | * the event. |
| 193 | */ |
| 194 | event = g_new0(struct bt_event, 1); |
| 195 | if (!event) { |
| 196 | BT_LOGE_STR("Failed to allocate one event."); |
| 197 | goto error; |
| 198 | } |
| 199 | |
| 200 | bt_object_init(event, bt_event_destroy); |
| 201 | |
| 202 | /* |
| 203 | * event does not share a common ancestor with the event class; it has |
| 204 | * to guarantee its existence by holding a reference. This reference |
| 205 | * shall be released once the event is associated to a stream since, |
| 206 | * from that point, the event and its class will share the same |
| 207 | * lifetime. |
| 208 | */ |
| 209 | event->event_class = bt_get(event_class); |
| 210 | event->clock_values = g_hash_table_new_full(g_direct_hash, |
| 211 | g_direct_equal, bt_put, bt_put); |
| 212 | |
| 213 | if (validation_output.event_header_type) { |
| 214 | BT_LOGD("Creating initial event header field: ft-addr=%p", |
| 215 | validation_output.event_header_type); |
| 216 | event_header = |
| 217 | bt_field_create(validation_output.event_header_type); |
| 218 | if (!event_header) { |
| 219 | BT_LOGE_STR("Cannot create initial event header field object."); |
| 220 | goto error; |
| 221 | } |
| 222 | } |
| 223 | |
| 224 | if (validation_output.stream_event_ctx_type) { |
| 225 | BT_LOGD("Creating initial stream event context field: ft-addr=%p", |
| 226 | validation_output.stream_event_ctx_type); |
| 227 | stream_event_context = bt_field_create( |
| 228 | validation_output.stream_event_ctx_type); |
| 229 | if (!stream_event_context) { |
| 230 | BT_LOGE_STR("Cannot create initial stream event context field object."); |
| 231 | goto error; |
| 232 | } |
| 233 | } |
| 234 | |
| 235 | if (validation_output.event_context_type) { |
| 236 | BT_LOGD("Creating initial event context field: ft-addr=%p", |
| 237 | validation_output.event_context_type); |
| 238 | event_context = bt_field_create( |
| 239 | validation_output.event_context_type); |
| 240 | if (!event_context) { |
| 241 | BT_LOGE_STR("Cannot create initial event context field object."); |
| 242 | goto error; |
| 243 | } |
| 244 | } |
| 245 | |
| 246 | if (validation_output.event_payload_type) { |
| 247 | BT_LOGD("Creating initial event payload field: ft-addr=%p", |
| 248 | validation_output.event_payload_type); |
| 249 | event_payload = bt_field_create( |
| 250 | validation_output.event_payload_type); |
| 251 | if (!event_payload) { |
| 252 | BT_LOGE_STR("Cannot create initial event payload field object."); |
| 253 | goto error; |
| 254 | } |
| 255 | } |
| 256 | |
| 257 | /* |
| 258 | * At this point all the fields are created, potentially from |
| 259 | * validated copies of field types, so that the field types and |
| 260 | * fields can be replaced in the trace, stream class, |
| 261 | * event class, and created event. |
| 262 | */ |
| 263 | bt_validation_replace_types(trace, stream_class, |
| 264 | event_class, &validation_output, validation_flags); |
| 265 | BT_MOVE(event->event_header, event_header); |
| 266 | BT_MOVE(event->stream_event_context, stream_event_context); |
| 267 | BT_MOVE(event->context_payload, event_context); |
| 268 | BT_MOVE(event->fields_payload, event_payload); |
| 269 | |
| 270 | /* |
| 271 | * Put what was not moved in bt_validation_replace_types(). |
| 272 | */ |
| 273 | bt_validation_output_put_types(&validation_output); |
| 274 | |
| 275 | /* |
| 276 | * Freeze the stream class since the event header must not be changed |
| 277 | * anymore. |
| 278 | */ |
| 279 | bt_stream_class_freeze(stream_class); |
| 280 | |
| 281 | /* |
| 282 | * It is safe to set the stream class's unique clock class |
| 283 | * now because the stream class is frozen. |
| 284 | */ |
| 285 | if (expected_clock_class) { |
| 286 | BT_MOVE(stream_class->clock_class, expected_clock_class); |
| 287 | } |
| 288 | |
| 289 | /* |
| 290 | * Mark stream class, and event class as valid since |
| 291 | * they're all frozen now. |
| 292 | */ |
| 293 | stream_class->valid = 1; |
| 294 | event_class->valid = 1; |
| 295 | |
| 296 | /* Put stuff we borrowed from the event class */ |
| 297 | BT_PUT(stream_class); |
| 298 | BT_PUT(trace); |
| 299 | BT_LOGD("Created event object: addr=%p, event-class-name=\"%s\", " |
| 300 | "event-class-id=%" PRId64, |
| 301 | event, bt_event_class_get_name(event->event_class), |
| 302 | bt_event_class_get_id(event_class)); |
| 303 | return event; |
| 304 | |
| 305 | error: |
| 306 | bt_validation_output_put_types(&validation_output); |
| 307 | BT_PUT(event); |
| 308 | BT_PUT(stream_class); |
| 309 | BT_PUT(trace); |
| 310 | BT_PUT(event_header); |
| 311 | BT_PUT(stream_event_context); |
| 312 | BT_PUT(event_context); |
| 313 | BT_PUT(event_payload); |
| 314 | bt_put(expected_clock_class); |
| 315 | assert(!packet_header_type); |
| 316 | assert(!packet_context_type); |
| 317 | assert(!event_header_type); |
| 318 | assert(!stream_event_ctx_type); |
| 319 | assert(!event_context_type); |
| 320 | assert(!event_payload_type); |
| 321 | |
| 322 | return event; |
| 323 | } |
| 324 | |
| 325 | struct bt_event_class *bt_event_get_class(struct bt_event *event) |
| 326 | { |
| 327 | struct bt_event_class *event_class = NULL; |
| 328 | |
| 329 | if (!event) { |
| 330 | BT_LOGW_STR("Invalid parameter: event is NULL."); |
| 331 | goto end; |
| 332 | } |
| 333 | |
| 334 | event_class = bt_get(bt_event_borrow_event_class(event)); |
| 335 | end: |
| 336 | return event_class; |
| 337 | } |
| 338 | |
| 339 | struct bt_stream *bt_event_get_stream(struct bt_event *event) |
| 340 | { |
| 341 | struct bt_stream *stream = NULL; |
| 342 | |
| 343 | if (!event) { |
| 344 | BT_LOGW_STR("Invalid parameter: event is NULL."); |
| 345 | goto end; |
| 346 | } |
| 347 | |
| 348 | /* |
| 349 | * If the event has a parent, then this is its (writer) stream. |
| 350 | * If the event has no parent, then if it has a packet, this |
| 351 | * is its (non-writer) stream. |
| 352 | */ |
| 353 | if (event->base.parent) { |
| 354 | stream = (struct bt_stream *) bt_object_get_parent(event); |
| 355 | } else { |
| 356 | if (event->packet) { |
| 357 | stream = bt_get(event->packet->stream); |
| 358 | } |
| 359 | } |
| 360 | |
| 361 | end: |
| 362 | return stream; |
| 363 | } |
| 364 | |
| 365 | int bt_event_set_payload(struct bt_event *event, |
| 366 | const char *name, |
| 367 | struct bt_field *payload) |
| 368 | { |
| 369 | int ret = 0; |
| 370 | |
| 371 | if (!event || !payload) { |
| 372 | BT_LOGW("Invalid parameter: event or payload field is NULL: " |
| 373 | "event-addr=%p, payload-field-addr=%p", |
| 374 | event, payload); |
| 375 | ret = -1; |
| 376 | goto end; |
| 377 | } |
| 378 | |
| 379 | if (event->frozen) { |
| 380 | BT_LOGW("Invalid parameter: event is frozen: addr=%p, " |
| 381 | "event-class-name=\"%s\", event-class-id=%" PRId64, |
| 382 | event, bt_event_class_get_name(event->event_class), |
| 383 | bt_event_class_get_id(event->event_class)); |
| 384 | ret = -1; |
| 385 | goto end; |
| 386 | } |
| 387 | |
| 388 | if (name) { |
| 389 | ret = bt_field_structure_set_field_by_name( |
| 390 | event->fields_payload, name, payload); |
| 391 | } else { |
| 392 | struct bt_field_type *payload_type; |
| 393 | |
| 394 | payload_type = bt_field_get_type(payload); |
| 395 | |
| 396 | if (bt_field_type_compare(payload_type, |
| 397 | event->event_class->fields) == 0) { |
| 398 | bt_put(event->fields_payload); |
| 399 | bt_get(payload); |
| 400 | event->fields_payload = payload; |
| 401 | } else { |
| 402 | BT_LOGW("Invalid parameter: payload field type is different from the expected field type: " |
| 403 | "event-addr=%p, event-class-name=\"%s\", " |
| 404 | "event-class-id=%" PRId64, |
| 405 | event, |
| 406 | bt_event_class_get_name(event->event_class), |
| 407 | bt_event_class_get_id(event->event_class)); |
| 408 | ret = -1; |
| 409 | } |
| 410 | |
| 411 | bt_put(payload_type); |
| 412 | } |
| 413 | |
| 414 | if (ret) { |
| 415 | BT_LOGW("Failed to set event's payload field: event-addr=%p, " |
| 416 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " |
| 417 | "payload-field-name=\"%s\", payload-field-addr=%p", |
| 418 | event, bt_event_class_get_name(event->event_class), |
| 419 | bt_event_class_get_id(event->event_class), |
| 420 | name, payload); |
| 421 | } else { |
| 422 | BT_LOGV("Set event's payload field: event-addr=%p, " |
| 423 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " |
| 424 | "payload-field-name=\"%s\", payload-field-addr=%p", |
| 425 | event, bt_event_class_get_name(event->event_class), |
| 426 | bt_event_class_get_id(event->event_class), |
| 427 | name, payload); |
| 428 | } |
| 429 | |
| 430 | end: |
| 431 | return ret; |
| 432 | } |
| 433 | |
| 434 | struct bt_field *bt_event_get_event_payload(struct bt_event *event) |
| 435 | { |
| 436 | struct bt_field *payload = NULL; |
| 437 | |
| 438 | if (!event) { |
| 439 | BT_LOGW_STR("Invalid parameter: event is NULL."); |
| 440 | goto end; |
| 441 | } |
| 442 | |
| 443 | if (!event->fields_payload) { |
| 444 | BT_LOGV("Event has no current payload field: addr=%p, " |
| 445 | "event-class-name=\"%s\", event-class-id=%" PRId64, |
| 446 | event, bt_event_class_get_name(event->event_class), |
| 447 | bt_event_class_get_id(event->event_class)); |
| 448 | goto end; |
| 449 | } |
| 450 | |
| 451 | payload = event->fields_payload; |
| 452 | bt_get(payload); |
| 453 | end: |
| 454 | return payload; |
| 455 | } |
| 456 | |
| 457 | int bt_event_set_event_payload(struct bt_event *event, |
| 458 | struct bt_field *payload) |
| 459 | { |
| 460 | return bt_event_set_payload(event, NULL, payload); |
| 461 | } |
| 462 | |
| 463 | struct bt_field *bt_event_get_payload(struct bt_event *event, |
| 464 | const char *name) |
| 465 | { |
| 466 | struct bt_field *field = NULL; |
| 467 | |
| 468 | if (!event) { |
| 469 | BT_LOGW_STR("Invalid parameter: event is NULL."); |
| 470 | goto end; |
| 471 | } |
| 472 | |
| 473 | if (name) { |
| 474 | field = bt_field_structure_get_field_by_name( |
| 475 | event->fields_payload, name); |
| 476 | } else { |
| 477 | field = event->fields_payload; |
| 478 | bt_get(field); |
| 479 | } |
| 480 | end: |
| 481 | return field; |
| 482 | } |
| 483 | |
| 484 | struct bt_field *bt_event_get_payload_by_index( |
| 485 | struct bt_event *event, uint64_t index) |
| 486 | { |
| 487 | struct bt_field *field = NULL; |
| 488 | |
| 489 | if (!event) { |
| 490 | BT_LOGW_STR("Invalid parameter: event is NULL."); |
| 491 | goto end; |
| 492 | } |
| 493 | |
| 494 | field = bt_field_structure_get_field_by_index(event->fields_payload, |
| 495 | index); |
| 496 | end: |
| 497 | return field; |
| 498 | } |
| 499 | |
| 500 | struct bt_field *bt_event_get_header( |
| 501 | struct bt_event *event) |
| 502 | { |
| 503 | struct bt_field *header = NULL; |
| 504 | |
| 505 | if (!event) { |
| 506 | BT_LOGW_STR("Invalid parameter: event is NULL."); |
| 507 | goto end; |
| 508 | } |
| 509 | |
| 510 | if (!event->event_header) { |
| 511 | BT_LOGV("Event has no current header field: addr=%p, " |
| 512 | "event-class-name=\"%s\", event-class-id=%" PRId64, |
| 513 | event, bt_event_class_get_name(event->event_class), |
| 514 | bt_event_class_get_id(event->event_class)); |
| 515 | goto end; |
| 516 | } |
| 517 | |
| 518 | header = event->event_header; |
| 519 | bt_get(header); |
| 520 | end: |
| 521 | return header; |
| 522 | } |
| 523 | |
| 524 | int bt_event_set_header(struct bt_event *event, |
| 525 | struct bt_field *header) |
| 526 | { |
| 527 | int ret = 0; |
| 528 | struct bt_field_type *field_type = NULL; |
| 529 | struct bt_stream_class *stream_class = NULL; |
| 530 | |
| 531 | if (!event) { |
| 532 | BT_LOGW_STR("Invalid parameter: event is NULL."); |
| 533 | ret = -1; |
| 534 | goto end; |
| 535 | } |
| 536 | |
| 537 | if (event->frozen) { |
| 538 | BT_LOGW("Invalid parameter: event is frozen: addr=%p, " |
| 539 | "event-class-name=\"%s\", event-class-id=%" PRId64, |
| 540 | event, bt_event_class_get_name(event->event_class), |
| 541 | bt_event_class_get_id(event->event_class)); |
| 542 | ret = -1; |
| 543 | goto end; |
| 544 | } |
| 545 | |
| 546 | stream_class = (struct bt_stream_class *) bt_object_get_parent( |
| 547 | event->event_class); |
| 548 | /* |
| 549 | * Ensure the provided header's type matches the one registered to the |
| 550 | * stream class. |
| 551 | */ |
| 552 | if (header) { |
| 553 | field_type = bt_field_get_type(header); |
| 554 | if (bt_field_type_compare(field_type, |
| 555 | stream_class->event_header_type)) { |
| 556 | BT_LOGW("Invalid parameter: header field type is different from the expected field type: " |
| 557 | "event-addr=%p, event-class-name=\"%s\", " |
| 558 | "event-class-id=%" PRId64, |
| 559 | event, |
| 560 | bt_event_class_get_name(event->event_class), |
| 561 | bt_event_class_get_id(event->event_class)); |
| 562 | ret = -1; |
| 563 | goto end; |
| 564 | } |
| 565 | } else { |
| 566 | if (stream_class->event_header_type) { |
| 567 | BT_LOGW("Invalid parameter: setting no event header but event header field type is not NULL: " |
| 568 | "event-addr=%p, event-class-name=\"%s\", " |
| 569 | "event-class-id=%" PRId64 ", " |
| 570 | "event-header-ft-addr=%p", |
| 571 | event, |
| 572 | bt_event_class_get_name(event->event_class), |
| 573 | bt_event_class_get_id(event->event_class), |
| 574 | stream_class->event_header_type); |
| 575 | ret = -1; |
| 576 | goto end; |
| 577 | } |
| 578 | } |
| 579 | |
| 580 | bt_put(event->event_header); |
| 581 | event->event_header = bt_get(header); |
| 582 | BT_LOGV("Set event's header field: event-addr=%p, " |
| 583 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " |
| 584 | "header-field-addr=%p", |
| 585 | event, bt_event_class_get_name(event->event_class), |
| 586 | bt_event_class_get_id(event->event_class), header); |
| 587 | end: |
| 588 | bt_put(stream_class); |
| 589 | bt_put(field_type); |
| 590 | return ret; |
| 591 | } |
| 592 | |
| 593 | struct bt_field *bt_event_get_event_context( |
| 594 | struct bt_event *event) |
| 595 | { |
| 596 | struct bt_field *context = NULL; |
| 597 | |
| 598 | if (!event) { |
| 599 | BT_LOGW_STR("Invalid parameter: event is NULL."); |
| 600 | goto end; |
| 601 | } |
| 602 | |
| 603 | if (!event->context_payload) { |
| 604 | BT_LOGV("Event has no current context field: addr=%p, " |
| 605 | "event-class-name=\"%s\", event-class-id=%" PRId64, |
| 606 | event, bt_event_class_get_name(event->event_class), |
| 607 | bt_event_class_get_id(event->event_class)); |
| 608 | goto end; |
| 609 | } |
| 610 | |
| 611 | context = event->context_payload; |
| 612 | bt_get(context); |
| 613 | end: |
| 614 | return context; |
| 615 | } |
| 616 | |
| 617 | int bt_event_set_event_context(struct bt_event *event, |
| 618 | struct bt_field *context) |
| 619 | { |
| 620 | int ret = 0; |
| 621 | struct bt_field_type *field_type = NULL; |
| 622 | |
| 623 | if (!event) { |
| 624 | BT_LOGW_STR("Invalid parameter: event is NULL."); |
| 625 | ret = -1; |
| 626 | goto end; |
| 627 | } |
| 628 | |
| 629 | if (event->frozen) { |
| 630 | BT_LOGW("Invalid parameter: event is frozen: addr=%p, " |
| 631 | "event-class-name=\"%s\", event-class-id=%" PRId64, |
| 632 | event, bt_event_class_get_name(event->event_class), |
| 633 | bt_event_class_get_id(event->event_class)); |
| 634 | ret = -1; |
| 635 | goto end; |
| 636 | } |
| 637 | |
| 638 | if (context) { |
| 639 | field_type = bt_field_get_type(context); |
| 640 | |
| 641 | if (bt_field_type_compare(field_type, |
| 642 | event->event_class->context)) { |
| 643 | BT_LOGW("Invalid parameter: context field type is different from the expected field type: " |
| 644 | "event-addr=%p, event-class-name=\"%s\", " |
| 645 | "event-class-id=%" PRId64, |
| 646 | event, |
| 647 | bt_event_class_get_name(event->event_class), |
| 648 | bt_event_class_get_id(event->event_class)); |
| 649 | ret = -1; |
| 650 | goto end; |
| 651 | } |
| 652 | } else { |
| 653 | if (event->event_class->context) { |
| 654 | BT_LOGW("Invalid parameter: setting no event context but event context field type is not NULL: " |
| 655 | "event-addr=%p, event-class-name=\"%s\", " |
| 656 | "event-class-id=%" PRId64 ", " |
| 657 | "event-context-ft-addr=%p", |
| 658 | event, |
| 659 | bt_event_class_get_name(event->event_class), |
| 660 | bt_event_class_get_id(event->event_class), |
| 661 | event->event_class->context); |
| 662 | ret = -1; |
| 663 | goto end; |
| 664 | } |
| 665 | } |
| 666 | |
| 667 | bt_put(event->context_payload); |
| 668 | event->context_payload = bt_get(context); |
| 669 | BT_LOGV("Set event's context field: event-addr=%p, " |
| 670 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " |
| 671 | "context-field-addr=%p", |
| 672 | event, bt_event_class_get_name(event->event_class), |
| 673 | bt_event_class_get_id(event->event_class), context); |
| 674 | end: |
| 675 | bt_put(field_type); |
| 676 | return ret; |
| 677 | } |
| 678 | |
| 679 | struct bt_field *bt_event_get_stream_event_context( |
| 680 | struct bt_event *event) |
| 681 | { |
| 682 | struct bt_field *stream_event_context = NULL; |
| 683 | |
| 684 | if (!event) { |
| 685 | BT_LOGW_STR("Invalid parameter: event is NULL."); |
| 686 | goto end; |
| 687 | } |
| 688 | |
| 689 | if (!event->stream_event_context) { |
| 690 | BT_LOGV("Event has no current stream event context field: addr=%p, " |
| 691 | "event-class-name=\"%s\", event-class-id=%" PRId64, |
| 692 | event, bt_event_class_get_name(event->event_class), |
| 693 | bt_event_class_get_id(event->event_class)); |
| 694 | goto end; |
| 695 | } |
| 696 | |
| 697 | stream_event_context = event->stream_event_context; |
| 698 | end: |
| 699 | return bt_get(stream_event_context); |
| 700 | } |
| 701 | |
| 702 | int bt_event_set_stream_event_context(struct bt_event *event, |
| 703 | struct bt_field *stream_event_context) |
| 704 | { |
| 705 | int ret = 0; |
| 706 | struct bt_field_type *field_type = NULL; |
| 707 | struct bt_stream_class *stream_class = NULL; |
| 708 | |
| 709 | if (!event) { |
| 710 | BT_LOGW_STR("Invalid parameter: event is NULL."); |
| 711 | ret = -1; |
| 712 | goto end; |
| 713 | } |
| 714 | |
| 715 | if (event->frozen) { |
| 716 | BT_LOGW("Invalid parameter: event is frozen: addr=%p, " |
| 717 | "event-class-name=\"%s\", event-class-id=%" PRId64, |
| 718 | event, bt_event_class_get_name(event->event_class), |
| 719 | bt_event_class_get_id(event->event_class)); |
| 720 | ret = -1; |
| 721 | goto end; |
| 722 | } |
| 723 | |
| 724 | stream_class = bt_event_class_get_stream_class(event->event_class); |
| 725 | /* |
| 726 | * We should not have been able to create the event without associating |
| 727 | * the event class to a stream class. |
| 728 | */ |
| 729 | assert(stream_class); |
| 730 | |
| 731 | if (stream_event_context) { |
| 732 | field_type = bt_field_get_type(stream_event_context); |
| 733 | if (bt_field_type_compare(field_type, |
| 734 | stream_class->event_context_type)) { |
| 735 | BT_LOGW("Invalid parameter: stream event context field type is different from the expected field type: " |
| 736 | "event-addr=%p, event-class-name=\"%s\", " |
| 737 | "event-class-id=%" PRId64, |
| 738 | event, |
| 739 | bt_event_class_get_name(event->event_class), |
| 740 | bt_event_class_get_id(event->event_class)); |
| 741 | ret = -1; |
| 742 | goto end; |
| 743 | } |
| 744 | } else { |
| 745 | if (stream_class->event_context_type) { |
| 746 | BT_LOGW("Invalid parameter: setting no stream event context but stream event context field type is not NULL: " |
| 747 | "event-addr=%p, event-class-name=\"%s\", " |
| 748 | "event-class-id=%" PRId64 ", " |
| 749 | "stream-event-context-ft-addr=%p", |
| 750 | event, |
| 751 | bt_event_class_get_name(event->event_class), |
| 752 | bt_event_class_get_id(event->event_class), |
| 753 | stream_class->event_context_type); |
| 754 | ret = -1; |
| 755 | goto end; |
| 756 | } |
| 757 | } |
| 758 | |
| 759 | bt_get(stream_event_context); |
| 760 | BT_MOVE(event->stream_event_context, stream_event_context); |
| 761 | BT_LOGV("Set event's stream event context field: event-addr=%p, " |
| 762 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " |
| 763 | "stream-event-context-field-addr=%p", |
| 764 | event, bt_event_class_get_name(event->event_class), |
| 765 | bt_event_class_get_id(event->event_class), |
| 766 | stream_event_context); |
| 767 | end: |
| 768 | BT_PUT(stream_class); |
| 769 | bt_put(field_type); |
| 770 | return ret; |
| 771 | } |
| 772 | |
| 773 | /* Pre-2.0 CTF writer backward compatibility */ |
| 774 | void bt_ctf_event_get(struct bt_event *event) |
| 775 | { |
| 776 | bt_get(event); |
| 777 | } |
| 778 | |
| 779 | /* Pre-2.0 CTF writer backward compatibility */ |
| 780 | void bt_ctf_event_put(struct bt_event *event) |
| 781 | { |
| 782 | bt_put(event); |
| 783 | } |
| 784 | |
| 785 | void bt_event_destroy(struct bt_object *obj) |
| 786 | { |
| 787 | struct bt_event *event; |
| 788 | |
| 789 | event = container_of(obj, struct bt_event, base); |
| 790 | BT_LOGD("Destroying event: addr=%p, " |
| 791 | "event-class-name=\"%s\", event-class-id=%" PRId64, |
| 792 | event, bt_event_class_get_name(event->event_class), |
| 793 | bt_event_class_get_id(event->event_class)); |
| 794 | |
| 795 | if (!event->base.parent) { |
| 796 | /* |
| 797 | * Event was keeping a reference to its class since it shared no |
| 798 | * common ancestor with it to guarantee they would both have the |
| 799 | * same lifetime. |
| 800 | */ |
| 801 | bt_put(event->event_class); |
| 802 | } |
| 803 | g_hash_table_destroy(event->clock_values); |
| 804 | BT_LOGD_STR("Putting event's header field."); |
| 805 | bt_put(event->event_header); |
| 806 | BT_LOGD_STR("Putting event's stream event context field."); |
| 807 | bt_put(event->stream_event_context); |
| 808 | BT_LOGD_STR("Putting event's context field."); |
| 809 | bt_put(event->context_payload); |
| 810 | BT_LOGD_STR("Putting event's payload field."); |
| 811 | bt_put(event->fields_payload); |
| 812 | BT_LOGD_STR("Putting event's packet."); |
| 813 | bt_put(event->packet); |
| 814 | g_free(event); |
| 815 | } |
| 816 | |
| 817 | struct bt_clock_value *bt_event_get_clock_value( |
| 818 | struct bt_event *event, struct bt_clock_class *clock_class) |
| 819 | { |
| 820 | struct bt_clock_value *clock_value = NULL; |
| 821 | |
| 822 | if (!event || !clock_class) { |
| 823 | BT_LOGW("Invalid parameter: event or clock class is NULL: " |
| 824 | "event-addr=%p, clock-class-addr=%p", |
| 825 | event, clock_class); |
| 826 | goto end; |
| 827 | } |
| 828 | |
| 829 | clock_value = g_hash_table_lookup(event->clock_values, clock_class); |
| 830 | if (!clock_value) { |
| 831 | BT_LOGV("No clock value associated to the given clock class: " |
| 832 | "event-addr=%p, event-class-name=\"%s\", " |
| 833 | "event-class-id=%" PRId64 ", clock-class-addr=%p, " |
| 834 | "clock-class-name=\"%s\"", event, |
| 835 | bt_event_class_get_name(event->event_class), |
| 836 | bt_event_class_get_id(event->event_class), |
| 837 | clock_class, bt_clock_class_get_name(clock_class)); |
| 838 | goto end; |
| 839 | } |
| 840 | |
| 841 | bt_get(clock_value); |
| 842 | end: |
| 843 | return clock_value; |
| 844 | } |
| 845 | |
| 846 | int bt_event_set_clock_value(struct bt_event *event, |
| 847 | struct bt_clock_value *value) |
| 848 | { |
| 849 | int ret = 0; |
| 850 | struct bt_trace *trace; |
| 851 | struct bt_stream_class *stream_class; |
| 852 | struct bt_event_class *event_class; |
| 853 | struct bt_clock_class *clock_class = NULL; |
| 854 | |
| 855 | if (!event || !value) { |
| 856 | BT_LOGW("Invalid parameter: event or clock value is NULL: " |
| 857 | "event-addr=%p, clock-value-addr=%p", |
| 858 | event, value); |
| 859 | ret = -1; |
| 860 | goto end; |
| 861 | } |
| 862 | |
| 863 | if (event->frozen) { |
| 864 | BT_LOGW("Invalid parameter: event is frozen: addr=%p, " |
| 865 | "event-class-name=\"%s\", event-class-id=%" PRId64, |
| 866 | event, bt_event_class_get_name(event->event_class), |
| 867 | bt_event_class_get_id(event->event_class)); |
| 868 | ret = -1; |
| 869 | goto end; |
| 870 | } |
| 871 | |
| 872 | clock_class = bt_clock_value_get_class(value); |
| 873 | event_class = bt_event_borrow_event_class(event); |
| 874 | assert(event_class); |
| 875 | stream_class = bt_event_class_borrow_stream_class(event_class); |
| 876 | assert(stream_class); |
| 877 | trace = bt_stream_class_borrow_trace(stream_class); |
| 878 | assert(trace); |
| 879 | |
| 880 | if (!bt_trace_has_clock_class(trace, clock_class)) { |
| 881 | BT_LOGW("Invalid parameter: clock class is not part of event's trace: " |
| 882 | "event-addr=%p, event-class-name=\"%s\", " |
| 883 | "event-class-id=%" PRId64 ", clock-class-addr=%p, " |
| 884 | "clock-class-name=\"%s\"", |
| 885 | event, bt_event_class_get_name(event->event_class), |
| 886 | bt_event_class_get_id(event->event_class), |
| 887 | clock_class, bt_clock_class_get_name(clock_class)); |
| 888 | ret = -1; |
| 889 | goto end; |
| 890 | } |
| 891 | |
| 892 | g_hash_table_insert(event->clock_values, clock_class, bt_get(value)); |
| 893 | BT_LOGV("Set event's clock value: " |
| 894 | "event-addr=%p, event-class-name=\"%s\", " |
| 895 | "event-class-id=%" PRId64 ", clock-class-addr=%p, " |
| 896 | "clock-class-name=\"%s\", clock-value-addr=%p, " |
| 897 | "clock-value-cycles=%" PRIu64, |
| 898 | event, bt_event_class_get_name(event->event_class), |
| 899 | bt_event_class_get_id(event->event_class), |
| 900 | clock_class, bt_clock_class_get_name(clock_class), |
| 901 | value, value->value); |
| 902 | clock_class = NULL; |
| 903 | |
| 904 | end: |
| 905 | bt_put(clock_class); |
| 906 | return ret; |
| 907 | } |
| 908 | |
| 909 | BT_HIDDEN |
| 910 | int bt_event_validate(struct bt_event *event) |
| 911 | { |
| 912 | /* Make sure each field's payload has been set */ |
| 913 | int ret; |
| 914 | struct bt_stream_class *stream_class = NULL; |
| 915 | |
| 916 | assert(event); |
| 917 | if (event->event_header) { |
| 918 | ret = bt_field_validate(event->event_header); |
| 919 | if (ret) { |
| 920 | BT_LOGD("Invalid event's header field: " |
| 921 | "event-addr=%p, event-class-name=\"%s\", " |
| 922 | "event-class-id=%" PRId64, |
| 923 | event, bt_event_class_get_name(event->event_class), |
| 924 | bt_event_class_get_id(event->event_class)); |
| 925 | goto end; |
| 926 | } |
| 927 | } |
| 928 | |
| 929 | stream_class = bt_event_class_get_stream_class(event->event_class); |
| 930 | /* |
| 931 | * We should not have been able to create the event without associating |
| 932 | * the event class to a stream class. |
| 933 | */ |
| 934 | assert(stream_class); |
| 935 | if (stream_class->event_context_type) { |
| 936 | ret = bt_field_validate(event->stream_event_context); |
| 937 | if (ret) { |
| 938 | BT_LOGD("Invalid event's stream event context field: " |
| 939 | "event-addr=%p, event-class-name=\"%s\", " |
| 940 | "event-class-id=%" PRId64, |
| 941 | event, |
| 942 | bt_event_class_get_name(event->event_class), |
| 943 | bt_event_class_get_id(event->event_class)); |
| 944 | goto end; |
| 945 | } |
| 946 | } |
| 947 | |
| 948 | ret = bt_field_validate(event->fields_payload); |
| 949 | if (ret) { |
| 950 | BT_LOGD("Invalid event's payload field: " |
| 951 | "event-addr=%p, event-class-name=\"%s\", " |
| 952 | "event-class-id=%" PRId64, |
| 953 | event, |
| 954 | bt_event_class_get_name(event->event_class), |
| 955 | bt_event_class_get_id(event->event_class)); |
| 956 | goto end; |
| 957 | } |
| 958 | |
| 959 | if (event->event_class->context) { |
| 960 | BT_LOGD("Invalid event's context field: " |
| 961 | "event-addr=%p, event-class-name=\"%s\", " |
| 962 | "event-class-id=%" PRId64, |
| 963 | event, |
| 964 | bt_event_class_get_name(event->event_class), |
| 965 | bt_event_class_get_id(event->event_class)); |
| 966 | ret = bt_field_validate(event->context_payload); |
| 967 | } |
| 968 | end: |
| 969 | bt_put(stream_class); |
| 970 | return ret; |
| 971 | } |
| 972 | |
| 973 | BT_HIDDEN |
| 974 | int bt_event_serialize(struct bt_event *event, |
| 975 | struct bt_stream_pos *pos, |
| 976 | enum bt_byte_order native_byte_order) |
| 977 | { |
| 978 | int ret = 0; |
| 979 | |
| 980 | assert(event); |
| 981 | assert(pos); |
| 982 | |
| 983 | BT_LOGV_STR("Serializing event's context field."); |
| 984 | if (event->context_payload) { |
| 985 | ret = bt_field_serialize(event->context_payload, pos, |
| 986 | native_byte_order); |
| 987 | if (ret) { |
| 988 | BT_LOGW("Cannot serialize event's context field: " |
| 989 | "event-addr=%p, event-class-name=\"%s\", " |
| 990 | "event-class-id=%" PRId64, |
| 991 | event, |
| 992 | bt_event_class_get_name(event->event_class), |
| 993 | bt_event_class_get_id(event->event_class)); |
| 994 | goto end; |
| 995 | } |
| 996 | } |
| 997 | |
| 998 | BT_LOGV_STR("Serializing event's payload field."); |
| 999 | if (event->fields_payload) { |
| 1000 | ret = bt_field_serialize(event->fields_payload, pos, |
| 1001 | native_byte_order); |
| 1002 | if (ret) { |
| 1003 | BT_LOGW("Cannot serialize event's payload field: " |
| 1004 | "event-addr=%p, event-class-name=\"%s\", " |
| 1005 | "event-class-id=%" PRId64, |
| 1006 | event, |
| 1007 | bt_event_class_get_name(event->event_class), |
| 1008 | bt_event_class_get_id(event->event_class)); |
| 1009 | goto end; |
| 1010 | } |
| 1011 | } |
| 1012 | end: |
| 1013 | return ret; |
| 1014 | } |
| 1015 | |
| 1016 | struct bt_packet *bt_event_get_packet(struct bt_event *event) |
| 1017 | { |
| 1018 | struct bt_packet *packet = NULL; |
| 1019 | |
| 1020 | if (!event) { |
| 1021 | BT_LOGW_STR("Invalid parameter: event is NULL."); |
| 1022 | goto end; |
| 1023 | } |
| 1024 | |
| 1025 | if (!event->packet) { |
| 1026 | BT_LOGV("Event has no current packet: addr=%p, " |
| 1027 | "event-class-name=\"%s\", event-class-id=%" PRId64, |
| 1028 | event, bt_event_class_get_name(event->event_class), |
| 1029 | bt_event_class_get_id(event->event_class)); |
| 1030 | goto end; |
| 1031 | } |
| 1032 | |
| 1033 | packet = bt_get(event->packet); |
| 1034 | end: |
| 1035 | return packet; |
| 1036 | } |
| 1037 | |
| 1038 | int bt_event_set_packet(struct bt_event *event, |
| 1039 | struct bt_packet *packet) |
| 1040 | { |
| 1041 | struct bt_stream_class *event_stream_class = NULL; |
| 1042 | struct bt_stream_class *packet_stream_class = NULL; |
| 1043 | struct bt_stream *stream = NULL; |
| 1044 | int ret = 0; |
| 1045 | |
| 1046 | if (!event || !packet) { |
| 1047 | BT_LOGW("Invalid parameter: event or packet is NULL: " |
| 1048 | "event-addr=%p, packet-addr=%p", |
| 1049 | event, packet); |
| 1050 | ret = -1; |
| 1051 | goto end; |
| 1052 | } |
| 1053 | |
| 1054 | if (event->frozen) { |
| 1055 | BT_LOGW("Invalid parameter: event is frozen: addr=%p, " |
| 1056 | "event-class-name=\"%s\", event-class-id=%" PRId64, |
| 1057 | event, bt_event_class_get_name(event->event_class), |
| 1058 | bt_event_class_get_id(event->event_class)); |
| 1059 | ret = -1; |
| 1060 | goto end; |
| 1061 | } |
| 1062 | |
| 1063 | /* |
| 1064 | * Make sure the new packet was created by this event's |
| 1065 | * stream, if it is set. |
| 1066 | */ |
| 1067 | stream = bt_event_get_stream(event); |
| 1068 | if (stream) { |
| 1069 | if (packet->stream != stream) { |
| 1070 | BT_LOGW("Invalid parameter: packet's stream and event's stream differ: " |
| 1071 | "event-addr=%p, event-class-name=\"%s\", " |
| 1072 | "event-class-id=%" PRId64 ", packet-stream-addr=%p, " |
| 1073 | "event-stream-addr=%p", |
| 1074 | event, bt_event_class_get_name(event->event_class), |
| 1075 | bt_event_class_get_id(event->event_class), |
| 1076 | packet->stream, stream); |
| 1077 | ret = -1; |
| 1078 | goto end; |
| 1079 | } |
| 1080 | } else { |
| 1081 | event_stream_class = |
| 1082 | bt_event_class_get_stream_class(event->event_class); |
| 1083 | packet_stream_class = |
| 1084 | bt_stream_get_class(packet->stream); |
| 1085 | |
| 1086 | assert(event_stream_class); |
| 1087 | assert(packet_stream_class); |
| 1088 | |
| 1089 | if (event_stream_class != packet_stream_class) { |
| 1090 | BT_LOGW("Invalid parameter: packet's stream class and event's stream class differ: " |
| 1091 | "event-addr=%p, event-class-name=\"%s\", " |
| 1092 | "event-class-id=%" PRId64 ", packet-stream-class-addr=%p, " |
| 1093 | "event-stream-class-addr=%p", |
| 1094 | event, bt_event_class_get_name(event->event_class), |
| 1095 | bt_event_class_get_id(event->event_class), |
| 1096 | packet_stream_class, event_stream_class); |
| 1097 | ret = -1; |
| 1098 | goto end; |
| 1099 | } |
| 1100 | } |
| 1101 | |
| 1102 | bt_get(packet); |
| 1103 | BT_MOVE(event->packet, packet); |
| 1104 | BT_LOGV("Set event's packet: event-addr=%p, " |
| 1105 | "event-class-name=\"%s\", event-class-id=%" PRId64 ", " |
| 1106 | "packet-addr=%p", |
| 1107 | event, bt_event_class_get_name(event->event_class), |
| 1108 | bt_event_class_get_id(event->event_class), packet); |
| 1109 | |
| 1110 | end: |
| 1111 | BT_PUT(stream); |
| 1112 | BT_PUT(event_stream_class); |
| 1113 | BT_PUT(packet_stream_class); |
| 1114 | |
| 1115 | return ret; |
| 1116 | } |
| 1117 | |
| 1118 | BT_HIDDEN |
| 1119 | void bt_event_freeze(struct bt_event *event) |
| 1120 | { |
| 1121 | assert(event); |
| 1122 | |
| 1123 | if (event->frozen) { |
| 1124 | return; |
| 1125 | } |
| 1126 | |
| 1127 | BT_LOGD("Freezing event: addr=%p, " |
| 1128 | "event-class-name=\"%s\", event-class-id=%" PRId64, |
| 1129 | event, bt_event_class_get_name(event->event_class), |
| 1130 | bt_event_class_get_id(event->event_class)); |
| 1131 | bt_packet_freeze(event->packet); |
| 1132 | BT_LOGD_STR("Freezing event's header field."); |
| 1133 | bt_field_freeze(event->event_header); |
| 1134 | BT_LOGD_STR("Freezing event's stream event context field."); |
| 1135 | bt_field_freeze(event->stream_event_context); |
| 1136 | BT_LOGD_STR("Freezing event's context field."); |
| 1137 | bt_field_freeze(event->context_payload); |
| 1138 | BT_LOGD_STR("Freezing event's payload field."); |
| 1139 | bt_field_freeze(event->fields_payload); |
| 1140 | event->frozen = 1; |
| 1141 | } |