| 1 | /* |
| 2 | * SPDX-License-Identifier: MIT |
| 3 | * |
| 4 | * Copyright 2013, 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
| 5 | * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com> |
| 6 | */ |
| 7 | |
| 8 | #define BT_LOG_TAG "CTF-WRITER/EVENT-CLASS" |
| 9 | #include "logging.h" |
| 10 | |
| 11 | #include <glib.h> |
| 12 | #include <inttypes.h> |
| 13 | #include <stdlib.h> |
| 14 | |
| 15 | #include <babeltrace2-ctf-writer/event.h> |
| 16 | #include <babeltrace2-ctf-writer/field-types.h> |
| 17 | #include <babeltrace2-ctf-writer/object.h> |
| 18 | #include <babeltrace2-ctf-writer/stream-class.h> |
| 19 | #include <babeltrace2-ctf-writer/utils.h> |
| 20 | |
| 21 | #include "common/assert.h" |
| 22 | #include "compat/compiler.h" |
| 23 | #include "compat/endian.h" |
| 24 | |
| 25 | #include "assert-pre.h" |
| 26 | #include "attributes.h" |
| 27 | #include "event-class.h" |
| 28 | #include "event.h" |
| 29 | #include "fields.h" |
| 30 | #include "field-types.h" |
| 31 | #include "stream-class.h" |
| 32 | #include "trace.h" |
| 33 | #include "utils.h" |
| 34 | #include "validation.h" |
| 35 | #include "values.h" |
| 36 | #include "writer.h" |
| 37 | |
| 38 | void bt_ctf_event_class_common_finalize(struct bt_ctf_object *obj) |
| 39 | { |
| 40 | struct bt_ctf_event_class_common *event_class; |
| 41 | |
| 42 | event_class = container_of(obj, struct bt_ctf_event_class_common, base); |
| 43 | BT_LOGD("Finalizing common event class: addr=%p, name=\"%s\", id=%" PRId64, |
| 44 | event_class, bt_ctf_event_class_common_get_name(event_class), |
| 45 | bt_ctf_event_class_common_get_id(event_class)); |
| 46 | |
| 47 | if (event_class->name) { |
| 48 | g_string_free(event_class->name, TRUE); |
| 49 | } |
| 50 | |
| 51 | if (event_class->emf_uri) { |
| 52 | g_string_free(event_class->emf_uri, TRUE); |
| 53 | } |
| 54 | |
| 55 | BT_LOGD_STR("Putting context field type."); |
| 56 | bt_ctf_object_put_ref(event_class->context_field_type); |
| 57 | BT_LOGD_STR("Putting payload field type."); |
| 58 | bt_ctf_object_put_ref(event_class->payload_field_type); |
| 59 | } |
| 60 | |
| 61 | int bt_ctf_event_class_common_initialize(struct bt_ctf_event_class_common *event_class, |
| 62 | const char *name, bt_ctf_object_release_func release_func, |
| 63 | bt_ctf_field_type_structure_create_func ft_struct_create_func) |
| 64 | { |
| 65 | int ret = 0; |
| 66 | |
| 67 | BT_LOGD("Initializing common event class object: name=\"%s\"", |
| 68 | name); |
| 69 | bt_ctf_object_init_shared_with_parent(&event_class->base, release_func); |
| 70 | event_class->payload_field_type = ft_struct_create_func(); |
| 71 | if (!event_class->payload_field_type) { |
| 72 | BT_LOGE_STR("Cannot create event class's initial payload field type object."); |
| 73 | goto error; |
| 74 | } |
| 75 | |
| 76 | event_class->id = -1; |
| 77 | event_class->name = g_string_new(name); |
| 78 | if (!event_class->name) { |
| 79 | BT_LOGE_STR("Failed to allocate a GString."); |
| 80 | goto error; |
| 81 | } |
| 82 | |
| 83 | event_class->emf_uri = g_string_new(NULL); |
| 84 | if (!event_class->emf_uri) { |
| 85 | BT_LOGE_STR("Failed to allocate a GString."); |
| 86 | goto error; |
| 87 | } |
| 88 | |
| 89 | event_class->log_level = BT_CTF_EVENT_CLASS_LOG_LEVEL_UNSPECIFIED; |
| 90 | BT_LOGD("Initialized common event class object: addr=%p, name=\"%s\"", |
| 91 | event_class, bt_ctf_event_class_common_get_name(event_class)); |
| 92 | return ret; |
| 93 | |
| 94 | error: |
| 95 | ret = -1; |
| 96 | return ret; |
| 97 | } |
| 98 | |
| 99 | void bt_ctf_event_class_common_freeze(struct bt_ctf_event_class_common *event_class) |
| 100 | { |
| 101 | BT_ASSERT_DBG(event_class); |
| 102 | |
| 103 | if (event_class->frozen) { |
| 104 | return; |
| 105 | } |
| 106 | |
| 107 | BT_LOGD("Freezing event class: addr=%p, name=\"%s\", id=%" PRId64, |
| 108 | event_class, bt_ctf_event_class_common_get_name(event_class), |
| 109 | bt_ctf_event_class_common_get_id(event_class)); |
| 110 | event_class->frozen = 1; |
| 111 | BT_LOGD_STR("Freezing event class's context field type."); |
| 112 | bt_ctf_field_type_common_freeze(event_class->context_field_type); |
| 113 | BT_LOGD_STR("Freezing event class's payload field type."); |
| 114 | bt_ctf_field_type_common_freeze(event_class->payload_field_type); |
| 115 | } |
| 116 | |
| 117 | int bt_ctf_event_class_common_validate_single_clock_class( |
| 118 | struct bt_ctf_event_class_common *event_class, |
| 119 | struct bt_ctf_clock_class **expected_clock_class) |
| 120 | { |
| 121 | int ret = 0; |
| 122 | |
| 123 | BT_ASSERT_DBG(event_class); |
| 124 | BT_ASSERT_DBG(expected_clock_class); |
| 125 | ret = bt_ctf_field_type_common_validate_single_clock_class( |
| 126 | event_class->context_field_type, |
| 127 | expected_clock_class); |
| 128 | if (ret) { |
| 129 | BT_LOGW("Event class's context field type " |
| 130 | "is not recursively mapped to the " |
| 131 | "expected clock class: " |
| 132 | "event-class-addr=%p, " |
| 133 | "event-class-name=\"%s\", " |
| 134 | "event-class-id=%" PRId64 ", " |
| 135 | "ft-addr=%p", |
| 136 | event_class, |
| 137 | bt_ctf_event_class_common_get_name(event_class), |
| 138 | event_class->id, |
| 139 | event_class->context_field_type); |
| 140 | goto end; |
| 141 | } |
| 142 | |
| 143 | ret = bt_ctf_field_type_common_validate_single_clock_class( |
| 144 | event_class->payload_field_type, |
| 145 | expected_clock_class); |
| 146 | if (ret) { |
| 147 | BT_LOGW("Event class's payload field type " |
| 148 | "is not recursively mapped to the " |
| 149 | "expected clock class: " |
| 150 | "event-class-addr=%p, " |
| 151 | "event-class-name=\"%s\", " |
| 152 | "event-class-id=%" PRId64 ", " |
| 153 | "ft-addr=%p", |
| 154 | event_class, |
| 155 | bt_ctf_event_class_common_get_name(event_class), |
| 156 | event_class->id, |
| 157 | event_class->payload_field_type); |
| 158 | goto end; |
| 159 | } |
| 160 | |
| 161 | end: |
| 162 | return ret; |
| 163 | } |
| 164 | |
| 165 | static |
| 166 | void bt_ctf_event_class_destroy(struct bt_ctf_object *obj) |
| 167 | { |
| 168 | bt_ctf_event_class_common_finalize(obj); |
| 169 | g_free(obj); |
| 170 | } |
| 171 | |
| 172 | BT_EXPORT |
| 173 | struct bt_ctf_event_class *bt_ctf_event_class_create(const char *name) |
| 174 | { |
| 175 | struct bt_ctf_event_class *ctf_event_class = NULL; |
| 176 | int ret; |
| 177 | |
| 178 | if (!name) { |
| 179 | BT_LOGW_STR("Invalid parameter: name is NULL."); |
| 180 | goto error; |
| 181 | } |
| 182 | |
| 183 | BT_LOGD("Creating event class object: name=\"%s\"", |
| 184 | name); |
| 185 | ctf_event_class = g_new0(struct bt_ctf_event_class, 1); |
| 186 | if (!ctf_event_class) { |
| 187 | BT_LOGE_STR("Failed to allocate one event class."); |
| 188 | goto error; |
| 189 | } |
| 190 | |
| 191 | ret = bt_ctf_event_class_common_initialize(BT_CTF_TO_COMMON(ctf_event_class), |
| 192 | name, bt_ctf_event_class_destroy, |
| 193 | (bt_ctf_field_type_structure_create_func) |
| 194 | bt_ctf_field_type_structure_create); |
| 195 | if (ret) { |
| 196 | goto error; |
| 197 | } |
| 198 | |
| 199 | goto end; |
| 200 | |
| 201 | error: |
| 202 | bt_ctf_object_put_ref(ctf_event_class); |
| 203 | |
| 204 | end: |
| 205 | return ctf_event_class; |
| 206 | } |
| 207 | |
| 208 | BT_EXPORT |
| 209 | const char *bt_ctf_event_class_get_name(struct bt_ctf_event_class *event_class) |
| 210 | { |
| 211 | return bt_ctf_event_class_common_get_name(BT_CTF_TO_COMMON(event_class)); |
| 212 | } |
| 213 | |
| 214 | BT_EXPORT |
| 215 | int64_t bt_ctf_event_class_get_id(struct bt_ctf_event_class *event_class) |
| 216 | { |
| 217 | return bt_ctf_event_class_common_get_id(BT_CTF_TO_COMMON(event_class)); |
| 218 | } |
| 219 | |
| 220 | BT_EXPORT |
| 221 | int bt_ctf_event_class_set_id(struct bt_ctf_event_class *event_class, |
| 222 | uint64_t id) |
| 223 | { |
| 224 | return bt_ctf_event_class_common_set_id(BT_CTF_TO_COMMON(event_class), id); |
| 225 | } |
| 226 | |
| 227 | BT_EXPORT |
| 228 | enum bt_ctf_event_class_log_level bt_ctf_event_class_get_log_level( |
| 229 | struct bt_ctf_event_class *event_class) |
| 230 | { |
| 231 | return bt_ctf_event_class_common_get_log_level(BT_CTF_TO_COMMON(event_class)); |
| 232 | } |
| 233 | |
| 234 | BT_EXPORT |
| 235 | int bt_ctf_event_class_set_log_level(struct bt_ctf_event_class *event_class, |
| 236 | enum bt_ctf_event_class_log_level log_level) |
| 237 | { |
| 238 | return bt_ctf_event_class_common_set_log_level(BT_CTF_TO_COMMON(event_class), |
| 239 | log_level); |
| 240 | } |
| 241 | |
| 242 | BT_EXPORT |
| 243 | const char *bt_ctf_event_class_get_emf_uri( |
| 244 | struct bt_ctf_event_class *event_class) |
| 245 | { |
| 246 | return bt_ctf_event_class_common_get_emf_uri(BT_CTF_TO_COMMON(event_class)); |
| 247 | } |
| 248 | |
| 249 | BT_EXPORT |
| 250 | int bt_ctf_event_class_set_emf_uri(struct bt_ctf_event_class *event_class, |
| 251 | const char *emf_uri) |
| 252 | { |
| 253 | return bt_ctf_event_class_common_set_emf_uri(BT_CTF_TO_COMMON(event_class), |
| 254 | emf_uri); |
| 255 | } |
| 256 | |
| 257 | BT_EXPORT |
| 258 | struct bt_ctf_stream_class *bt_ctf_event_class_get_stream_class( |
| 259 | struct bt_ctf_event_class *event_class) |
| 260 | { |
| 261 | BT_CTF_ASSERT_PRE_NON_NULL(event_class, "Event class"); |
| 262 | return bt_ctf_object_get_ref(bt_ctf_event_class_common_borrow_stream_class( |
| 263 | BT_CTF_TO_COMMON(event_class))); |
| 264 | } |
| 265 | |
| 266 | BT_EXPORT |
| 267 | struct bt_ctf_field_type *bt_ctf_event_class_get_payload_field_type( |
| 268 | struct bt_ctf_event_class *event_class) |
| 269 | { |
| 270 | return bt_ctf_object_get_ref(bt_ctf_event_class_common_borrow_payload_field_type( |
| 271 | BT_CTF_TO_COMMON(event_class))); |
| 272 | } |
| 273 | |
| 274 | BT_EXPORT |
| 275 | int bt_ctf_event_class_set_payload_field_type( |
| 276 | struct bt_ctf_event_class *event_class, |
| 277 | struct bt_ctf_field_type *field_type) |
| 278 | { |
| 279 | return bt_ctf_event_class_common_set_payload_field_type( |
| 280 | BT_CTF_TO_COMMON(event_class), (void *) field_type); |
| 281 | } |
| 282 | |
| 283 | BT_EXPORT |
| 284 | struct bt_ctf_field_type *bt_ctf_event_class_get_context_field_type( |
| 285 | struct bt_ctf_event_class *event_class) |
| 286 | { |
| 287 | return bt_ctf_object_get_ref(bt_ctf_event_class_common_borrow_context_field_type( |
| 288 | BT_CTF_TO_COMMON(event_class))); |
| 289 | } |
| 290 | |
| 291 | BT_EXPORT |
| 292 | int bt_ctf_event_class_set_context_field_type( |
| 293 | struct bt_ctf_event_class *event_class, |
| 294 | struct bt_ctf_field_type *field_type) |
| 295 | { |
| 296 | return bt_ctf_event_class_common_set_context_field_type( |
| 297 | BT_CTF_TO_COMMON(event_class), (void *) field_type); |
| 298 | } |
| 299 | |
| 300 | BT_EXPORT |
| 301 | int bt_ctf_event_class_add_field(struct bt_ctf_event_class *event_class, |
| 302 | struct bt_ctf_field_type *type, |
| 303 | const char *name) |
| 304 | { |
| 305 | int ret = 0; |
| 306 | |
| 307 | if (!event_class || !type) { |
| 308 | BT_LOGW("Invalid parameter: event class or field type is NULL: " |
| 309 | "event-class-addr=%p, field-type-addr=%p", |
| 310 | event_class, type); |
| 311 | ret = -1; |
| 312 | goto end; |
| 313 | } |
| 314 | |
| 315 | if (!bt_ctf_identifier_is_valid(name)) { |
| 316 | BT_LOGW("Invalid parameter: event class's payload field type's field name is not a valid CTF identifier: " |
| 317 | "addr=%p, name=\"%s\", id=%" PRId64 ", field-name=\"%s\"", |
| 318 | event_class, bt_ctf_event_class_get_name(event_class), |
| 319 | bt_ctf_event_class_get_id(event_class), |
| 320 | name); |
| 321 | ret = -1; |
| 322 | goto end; |
| 323 | } |
| 324 | |
| 325 | if (event_class->common.frozen) { |
| 326 | BT_LOGW("Invalid parameter: event class is frozen: " |
| 327 | "addr=%p, name=\"%s\", id=%" PRId64, |
| 328 | event_class, bt_ctf_event_class_get_name(event_class), |
| 329 | bt_ctf_event_class_get_id(event_class)); |
| 330 | ret = -1; |
| 331 | goto end; |
| 332 | } |
| 333 | |
| 334 | if (!event_class->common.payload_field_type) { |
| 335 | BT_LOGW("Event class has no payload field type: " |
| 336 | "addr=%p, name=\"%s\", id=%" PRId64, |
| 337 | event_class, bt_ctf_event_class_get_name(event_class), |
| 338 | bt_ctf_event_class_get_id(event_class)); |
| 339 | ret = -1; |
| 340 | goto end; |
| 341 | } |
| 342 | |
| 343 | BT_ASSERT_DBG(bt_ctf_field_type_common_get_type_id( |
| 344 | event_class->common.payload_field_type) == |
| 345 | BT_CTF_FIELD_TYPE_ID_STRUCT); |
| 346 | ret = bt_ctf_field_type_structure_add_field( |
| 347 | (void *) event_class->common.payload_field_type, |
| 348 | (void *) type, name); |
| 349 | BT_LOGT("Added field to event class's payload field type: " |
| 350 | "event-class-addr=%p, event-class-name=\"%s\", " |
| 351 | "event-class-id=%" PRId64 ", field-name=\"%s\", ft-addr=%p", |
| 352 | event_class, bt_ctf_event_class_get_name(event_class), |
| 353 | bt_ctf_event_class_get_id(event_class), name, type); |
| 354 | end: |
| 355 | return ret; |
| 356 | } |
| 357 | |
| 358 | BT_EXPORT |
| 359 | int64_t bt_ctf_event_class_get_payload_type_field_count( |
| 360 | struct bt_ctf_event_class *event_class) |
| 361 | { |
| 362 | int64_t ret; |
| 363 | |
| 364 | if (!event_class) { |
| 365 | BT_LOGW_STR("Invalid parameter: event class is NULL."); |
| 366 | ret = (int64_t) -1; |
| 367 | goto end; |
| 368 | } |
| 369 | |
| 370 | if (!event_class->common.payload_field_type) { |
| 371 | BT_LOGT("Event class has no payload field type: " |
| 372 | "addr=%p, name=\"%s\", id=%" PRId64, |
| 373 | event_class, bt_ctf_event_class_get_name(event_class), |
| 374 | bt_ctf_event_class_get_id(event_class)); |
| 375 | ret = (int64_t) -1; |
| 376 | goto end; |
| 377 | } |
| 378 | |
| 379 | BT_ASSERT_DBG(bt_ctf_field_type_common_get_type_id( |
| 380 | event_class->common.payload_field_type) == |
| 381 | BT_CTF_FIELD_TYPE_ID_STRUCT); |
| 382 | ret = bt_ctf_field_type_common_structure_get_field_count( |
| 383 | event_class->common.payload_field_type); |
| 384 | end: |
| 385 | return ret; |
| 386 | } |
| 387 | |
| 388 | BT_EXPORT |
| 389 | int bt_ctf_event_class_get_payload_type_field_by_index( |
| 390 | struct bt_ctf_event_class *event_class, |
| 391 | const char **field_name, struct bt_ctf_field_type **field_type, |
| 392 | uint64_t index) |
| 393 | { |
| 394 | int ret; |
| 395 | |
| 396 | if (!event_class) { |
| 397 | BT_LOGW_STR("Invalid parameter: event class is NULL."); |
| 398 | ret = -1; |
| 399 | goto end; |
| 400 | } |
| 401 | |
| 402 | if (!event_class->common.payload_field_type) { |
| 403 | BT_LOGT("Event class has no payload field type: " |
| 404 | "addr=%p, name=\"%s\", id=%" PRId64 ", index=%" PRIu64, |
| 405 | event_class, bt_ctf_event_class_get_name(event_class), |
| 406 | bt_ctf_event_class_get_id(event_class), index); |
| 407 | ret = -1; |
| 408 | goto end; |
| 409 | } |
| 410 | |
| 411 | BT_ASSERT_DBG(bt_ctf_field_type_common_get_type_id( |
| 412 | event_class->common.payload_field_type) == |
| 413 | BT_CTF_FIELD_TYPE_ID_STRUCT); |
| 414 | ret = bt_ctf_field_type_structure_get_field_by_index( |
| 415 | (void *) event_class->common.payload_field_type, |
| 416 | field_name, (void *) field_type, index); |
| 417 | |
| 418 | end: |
| 419 | return ret; |
| 420 | } |
| 421 | |
| 422 | BT_EXPORT |
| 423 | struct bt_ctf_field_type * |
| 424 | bt_ctf_event_class_get_payload_type_field_type_by_name( |
| 425 | struct bt_ctf_event_class *event_class, const char *name) |
| 426 | { |
| 427 | GQuark name_quark; |
| 428 | struct bt_ctf_field_type *field_type = NULL; |
| 429 | |
| 430 | if (!event_class || !name) { |
| 431 | BT_LOGW("Invalid parameter: event class or name is NULL: " |
| 432 | "event-class-addr=%p, name-addr=%p", |
| 433 | event_class, name); |
| 434 | goto end; |
| 435 | } |
| 436 | |
| 437 | if (!event_class->common.payload_field_type) { |
| 438 | BT_LOGT("Event class has no payload field type: " |
| 439 | "addr=%p, name=\"%s\", id=%" PRId64, |
| 440 | event_class, bt_ctf_event_class_get_name(event_class), |
| 441 | bt_ctf_event_class_get_id(event_class)); |
| 442 | goto end; |
| 443 | } |
| 444 | |
| 445 | BT_ASSERT_DBG(bt_ctf_field_type_common_get_type_id( |
| 446 | event_class->common.payload_field_type) == |
| 447 | BT_CTF_FIELD_TYPE_ID_STRUCT); |
| 448 | name_quark = g_quark_try_string(name); |
| 449 | if (!name_quark) { |
| 450 | BT_LOGE("Cannot get GQuark: string=\"%s\"", name); |
| 451 | goto end; |
| 452 | } |
| 453 | |
| 454 | /* |
| 455 | * No need to increment field_type's reference count since getting it |
| 456 | * from the structure already does. |
| 457 | */ |
| 458 | field_type = (void *) |
| 459 | bt_ctf_field_type_structure_get_field_type_by_name( |
| 460 | (void *) event_class->common.payload_field_type, name); |
| 461 | |
| 462 | end: |
| 463 | return field_type; |
| 464 | } |
| 465 | |
| 466 | int bt_ctf_event_class_serialize(struct bt_ctf_event_class *event_class, |
| 467 | struct metadata_context *context) |
| 468 | { |
| 469 | int ret = 0; |
| 470 | struct bt_ctf_value *attr_value = NULL; |
| 471 | |
| 472 | BT_ASSERT_DBG(event_class); |
| 473 | BT_ASSERT_DBG(context); |
| 474 | BT_LOGD("Serializing event class's metadata: " |
| 475 | "event-class-addr=%p, event-class-name=\"%s\", " |
| 476 | "event-class-id=%" PRId64 ", metadata-context-addr=%p", |
| 477 | event_class, bt_ctf_event_class_get_name(event_class), |
| 478 | bt_ctf_event_class_get_id(event_class), context); |
| 479 | context->current_indentation_level = 1; |
| 480 | g_string_assign(context->field_name, ""); |
| 481 | g_string_append(context->string, "event {\n"); |
| 482 | |
| 483 | /* Serialize attributes */ |
| 484 | g_string_append_printf(context->string, "\tname = \"%s\";\n", |
| 485 | event_class->common.name->str); |
| 486 | BT_ASSERT_DBG(event_class->common.id >= 0); |
| 487 | g_string_append_printf(context->string, "\tid = %" PRId64 ";\n", |
| 488 | event_class->common.id); |
| 489 | g_string_append_printf(context->string, "\tstream_id = %" PRId64 ";\n", |
| 490 | bt_ctf_stream_class_common_get_id( |
| 491 | bt_ctf_event_class_common_borrow_stream_class( |
| 492 | BT_CTF_TO_COMMON(event_class)))); |
| 493 | |
| 494 | if (event_class->common.log_level != |
| 495 | BT_CTF_EVENT_CLASS_LOG_LEVEL_UNSPECIFIED) { |
| 496 | g_string_append_printf(context->string, "\tloglevel = %d;\n", |
| 497 | (int) event_class->common.log_level); |
| 498 | } |
| 499 | |
| 500 | if (event_class->common.emf_uri->len > 0) { |
| 501 | g_string_append_printf(context->string, "\tmodel.emf.uri = \"%s\";\n", |
| 502 | event_class->common.emf_uri->str); |
| 503 | } |
| 504 | |
| 505 | /* Serialize context field type */ |
| 506 | if (event_class->common.context_field_type) { |
| 507 | g_string_append(context->string, "\tcontext := "); |
| 508 | BT_LOGD_STR("Serializing event class's context field type metadata."); |
| 509 | ret = bt_ctf_field_type_serialize_recursive( |
| 510 | (void *) event_class->common.context_field_type, |
| 511 | context); |
| 512 | if (ret) { |
| 513 | BT_LOGW("Cannot serialize event class's context field type's metadata: " |
| 514 | "ret=%d", ret); |
| 515 | goto end; |
| 516 | } |
| 517 | g_string_append(context->string, ";\n"); |
| 518 | } |
| 519 | |
| 520 | /* Serialize payload field type */ |
| 521 | if (event_class->common.payload_field_type) { |
| 522 | g_string_append(context->string, "\tfields := "); |
| 523 | BT_LOGD_STR("Serializing event class's payload field type metadata."); |
| 524 | ret = bt_ctf_field_type_serialize_recursive( |
| 525 | (void *) event_class->common.payload_field_type, |
| 526 | context); |
| 527 | if (ret) { |
| 528 | BT_LOGW("Cannot serialize event class's payload field type's metadata: " |
| 529 | "ret=%d", ret); |
| 530 | goto end; |
| 531 | } |
| 532 | g_string_append(context->string, ";\n"); |
| 533 | } |
| 534 | |
| 535 | g_string_append(context->string, "};\n\n"); |
| 536 | |
| 537 | end: |
| 538 | context->current_indentation_level = 0; |
| 539 | BT_CTF_OBJECT_PUT_REF_AND_RESET(attr_value); |
| 540 | return ret; |
| 541 | } |
| 542 | |
| 543 | BT_EXPORT |
| 544 | struct bt_ctf_field_type *bt_ctf_event_class_get_field_by_name( |
| 545 | struct bt_ctf_event_class *event_class, const char *name) |
| 546 | { |
| 547 | GQuark name_quark; |
| 548 | struct bt_ctf_field_type *field_type = NULL; |
| 549 | |
| 550 | if (!event_class || !name) { |
| 551 | BT_LOGW("Invalid parameter: event class or name is NULL: " |
| 552 | "event-class-addr=%p, name-addr=%p", |
| 553 | event_class, name); |
| 554 | goto end; |
| 555 | } |
| 556 | |
| 557 | if (!event_class->common.payload_field_type) { |
| 558 | BT_LOGT("Event class has no payload field type: " |
| 559 | "addr=%p, name=\"%s\", id=%" PRId64, |
| 560 | event_class, |
| 561 | bt_ctf_event_class_get_name(event_class), |
| 562 | bt_ctf_event_class_get_id(event_class)); |
| 563 | goto end; |
| 564 | } |
| 565 | |
| 566 | BT_ASSERT_DBG(event_class->common.payload_field_type->id == |
| 567 | BT_CTF_FIELD_TYPE_ID_STRUCT); |
| 568 | name_quark = g_quark_try_string(name); |
| 569 | if (!name_quark) { |
| 570 | BT_LOGE("Cannot get GQuark: string=\"%s\"", name); |
| 571 | goto end; |
| 572 | } |
| 573 | |
| 574 | /* |
| 575 | * No need to increment field_type's reference count since getting it |
| 576 | * from the structure already does. |
| 577 | */ |
| 578 | field_type = bt_ctf_object_get_ref( |
| 579 | bt_ctf_field_type_common_structure_borrow_field_type_by_name( |
| 580 | event_class->common.payload_field_type, name)); |
| 581 | |
| 582 | end: |
| 583 | return field_type; |
| 584 | } |