| 1 | /* |
| 2 | * trace.c |
| 3 | * |
| 4 | * Babeltrace CTF IR - Trace |
| 5 | * |
| 6 | * Copyright 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 | #include <babeltrace/ctf-ir/trace-internal.h> |
| 30 | #include <babeltrace/ctf-ir/clock-class-internal.h> |
| 31 | #include <babeltrace/ctf-ir/stream-internal.h> |
| 32 | #include <babeltrace/ctf-ir/stream-class-internal.h> |
| 33 | #include <babeltrace/ctf-ir/event-internal.h> |
| 34 | #include <babeltrace/ctf-ir/event-class.h> |
| 35 | #include <babeltrace/ctf-ir/event-class-internal.h> |
| 36 | #include <babeltrace/ctf-writer/functor-internal.h> |
| 37 | #include <babeltrace/ctf-writer/clock-internal.h> |
| 38 | #include <babeltrace/ctf-ir/field-types-internal.h> |
| 39 | #include <babeltrace/ctf-ir/attributes-internal.h> |
| 40 | #include <babeltrace/ctf-ir/validation-internal.h> |
| 41 | #include <babeltrace/ctf-ir/visitor-internal.h> |
| 42 | #include <babeltrace/ctf-ir/utils.h> |
| 43 | #include <babeltrace/compiler-internal.h> |
| 44 | #include <babeltrace/values.h> |
| 45 | #include <babeltrace/ref.h> |
| 46 | #include <babeltrace/endian-internal.h> |
| 47 | #include <inttypes.h> |
| 48 | #include <stdint.h> |
| 49 | |
| 50 | #define DEFAULT_IDENTIFIER_SIZE 128 |
| 51 | #define DEFAULT_METADATA_STRING_SIZE 4096 |
| 52 | |
| 53 | struct listener_wrapper { |
| 54 | bt_ctf_listener_cb listener; |
| 55 | void *data; |
| 56 | }; |
| 57 | |
| 58 | static |
| 59 | void bt_ctf_trace_destroy(struct bt_object *obj); |
| 60 | static |
| 61 | int init_trace_packet_header(struct bt_ctf_trace *trace); |
| 62 | static |
| 63 | void bt_ctf_trace_freeze(struct bt_ctf_trace *trace); |
| 64 | |
| 65 | static |
| 66 | const unsigned int field_type_aliases_alignments[] = { |
| 67 | [FIELD_TYPE_ALIAS_UINT5_T] = 1, |
| 68 | [FIELD_TYPE_ALIAS_UINT8_T ... FIELD_TYPE_ALIAS_UINT16_T] = 8, |
| 69 | [FIELD_TYPE_ALIAS_UINT27_T] = 1, |
| 70 | [FIELD_TYPE_ALIAS_UINT32_T ... FIELD_TYPE_ALIAS_UINT64_T] = 8, |
| 71 | }; |
| 72 | |
| 73 | static |
| 74 | const unsigned int field_type_aliases_sizes[] = { |
| 75 | [FIELD_TYPE_ALIAS_UINT5_T] = 5, |
| 76 | [FIELD_TYPE_ALIAS_UINT8_T] = 8, |
| 77 | [FIELD_TYPE_ALIAS_UINT16_T] = 16, |
| 78 | [FIELD_TYPE_ALIAS_UINT27_T] = 27, |
| 79 | [FIELD_TYPE_ALIAS_UINT32_T] = 32, |
| 80 | [FIELD_TYPE_ALIAS_UINT64_T] = 64, |
| 81 | }; |
| 82 | |
| 83 | struct bt_ctf_trace *bt_ctf_trace_create(void) |
| 84 | { |
| 85 | struct bt_ctf_trace *trace = NULL; |
| 86 | |
| 87 | trace = g_new0(struct bt_ctf_trace, 1); |
| 88 | if (!trace) { |
| 89 | goto error; |
| 90 | } |
| 91 | |
| 92 | trace->native_byte_order = BT_CTF_BYTE_ORDER_NATIVE; |
| 93 | bt_object_init(trace, bt_ctf_trace_destroy); |
| 94 | trace->clocks = g_ptr_array_new_with_free_func( |
| 95 | (GDestroyNotify) bt_put); |
| 96 | trace->streams = g_ptr_array_new_with_free_func( |
| 97 | (GDestroyNotify) bt_object_release); |
| 98 | trace->stream_classes = g_ptr_array_new_with_free_func( |
| 99 | (GDestroyNotify) bt_object_release); |
| 100 | if (!trace->clocks || !trace->stream_classes || !trace->streams) { |
| 101 | goto error; |
| 102 | } |
| 103 | |
| 104 | /* Generate a trace UUID */ |
| 105 | uuid_generate(trace->uuid); |
| 106 | if (init_trace_packet_header(trace)) { |
| 107 | goto error; |
| 108 | } |
| 109 | |
| 110 | /* Create the environment array object */ |
| 111 | trace->environment = bt_ctf_attributes_create(); |
| 112 | if (!trace->environment) { |
| 113 | goto error; |
| 114 | } |
| 115 | |
| 116 | trace->listeners = g_ptr_array_new_with_free_func( |
| 117 | (GDestroyNotify) g_free); |
| 118 | if (!trace->listeners) { |
| 119 | goto error; |
| 120 | } |
| 121 | |
| 122 | return trace; |
| 123 | |
| 124 | error: |
| 125 | BT_PUT(trace); |
| 126 | return trace; |
| 127 | } |
| 128 | |
| 129 | const char *bt_ctf_trace_get_name(struct bt_ctf_trace *trace) |
| 130 | { |
| 131 | const char *name = NULL; |
| 132 | |
| 133 | if (!trace || !trace->name) { |
| 134 | goto end; |
| 135 | } |
| 136 | |
| 137 | name = trace->name->str; |
| 138 | end: |
| 139 | return name; |
| 140 | } |
| 141 | |
| 142 | int bt_ctf_trace_set_name(struct bt_ctf_trace *trace, const char *name) |
| 143 | { |
| 144 | int ret = 0; |
| 145 | |
| 146 | if (!trace || !name || trace->frozen) { |
| 147 | ret = -1; |
| 148 | goto end; |
| 149 | } |
| 150 | |
| 151 | trace->name = trace->name ? g_string_assign(trace->name, name) : |
| 152 | g_string_new(name); |
| 153 | if (!trace->name) { |
| 154 | ret = -1; |
| 155 | goto end; |
| 156 | } |
| 157 | end: |
| 158 | return ret; |
| 159 | } |
| 160 | |
| 161 | void bt_ctf_trace_destroy(struct bt_object *obj) |
| 162 | { |
| 163 | struct bt_ctf_trace *trace; |
| 164 | |
| 165 | trace = container_of(obj, struct bt_ctf_trace, base); |
| 166 | if (trace->environment) { |
| 167 | bt_ctf_attributes_destroy(trace->environment); |
| 168 | } |
| 169 | |
| 170 | if (trace->name) { |
| 171 | g_string_free(trace->name, TRUE); |
| 172 | } |
| 173 | |
| 174 | if (trace->clocks) { |
| 175 | g_ptr_array_free(trace->clocks, TRUE); |
| 176 | } |
| 177 | |
| 178 | if (trace->streams) { |
| 179 | g_ptr_array_free(trace->streams, TRUE); |
| 180 | } |
| 181 | |
| 182 | if (trace->stream_classes) { |
| 183 | g_ptr_array_free(trace->stream_classes, TRUE); |
| 184 | } |
| 185 | |
| 186 | if (trace->listeners) { |
| 187 | g_ptr_array_free(trace->listeners, TRUE); |
| 188 | } |
| 189 | |
| 190 | bt_put(trace->packet_header_type); |
| 191 | g_free(trace); |
| 192 | } |
| 193 | |
| 194 | int bt_ctf_trace_set_environment_field(struct bt_ctf_trace *trace, |
| 195 | const char *name, struct bt_value *value) |
| 196 | { |
| 197 | int ret = 0; |
| 198 | |
| 199 | if (!trace || !name || !value || |
| 200 | bt_ctf_validate_identifier(name) || |
| 201 | !(bt_value_is_integer(value) || bt_value_is_string(value))) { |
| 202 | ret = -1; |
| 203 | goto end; |
| 204 | } |
| 205 | |
| 206 | if (strchr(name, ' ')) { |
| 207 | ret = -1; |
| 208 | goto end; |
| 209 | } |
| 210 | |
| 211 | if (trace->frozen) { |
| 212 | /* |
| 213 | * New environment fields may be added to a frozen trace, |
| 214 | * but existing fields may not be changed. |
| 215 | * |
| 216 | * The object passed is frozen like all other attributes. |
| 217 | */ |
| 218 | struct bt_value *attribute = |
| 219 | bt_ctf_attributes_get_field_value_by_name( |
| 220 | trace->environment, name); |
| 221 | |
| 222 | if (attribute) { |
| 223 | BT_PUT(attribute); |
| 224 | ret = -1; |
| 225 | goto end; |
| 226 | } |
| 227 | |
| 228 | bt_value_freeze(value); |
| 229 | } |
| 230 | |
| 231 | ret = bt_ctf_attributes_set_field_value(trace->environment, name, |
| 232 | value); |
| 233 | |
| 234 | end: |
| 235 | return ret; |
| 236 | } |
| 237 | |
| 238 | int bt_ctf_trace_set_environment_field_string(struct bt_ctf_trace *trace, |
| 239 | const char *name, const char *value) |
| 240 | { |
| 241 | int ret = 0; |
| 242 | struct bt_value *env_value_string_obj = NULL; |
| 243 | |
| 244 | if (!trace || !name || !value) { |
| 245 | ret = -1; |
| 246 | goto end; |
| 247 | } |
| 248 | |
| 249 | if (trace->frozen) { |
| 250 | /* |
| 251 | * New environment fields may be added to a frozen trace, |
| 252 | * but existing fields may not be changed. |
| 253 | */ |
| 254 | struct bt_value *attribute = |
| 255 | bt_ctf_attributes_get_field_value_by_name( |
| 256 | trace->environment, name); |
| 257 | |
| 258 | if (attribute) { |
| 259 | BT_PUT(attribute); |
| 260 | ret = -1; |
| 261 | goto end; |
| 262 | } |
| 263 | } |
| 264 | |
| 265 | env_value_string_obj = bt_value_string_create_init(value); |
| 266 | |
| 267 | if (!env_value_string_obj) { |
| 268 | ret = -1; |
| 269 | goto end; |
| 270 | } |
| 271 | |
| 272 | if (trace->frozen) { |
| 273 | bt_value_freeze(env_value_string_obj); |
| 274 | } |
| 275 | ret = bt_ctf_trace_set_environment_field(trace, name, |
| 276 | env_value_string_obj); |
| 277 | |
| 278 | end: |
| 279 | BT_PUT(env_value_string_obj); |
| 280 | return ret; |
| 281 | } |
| 282 | |
| 283 | int bt_ctf_trace_set_environment_field_integer(struct bt_ctf_trace *trace, |
| 284 | const char *name, int64_t value) |
| 285 | { |
| 286 | int ret = 0; |
| 287 | struct bt_value *env_value_integer_obj = NULL; |
| 288 | |
| 289 | if (!trace || !name) { |
| 290 | ret = -1; |
| 291 | goto end; |
| 292 | } |
| 293 | |
| 294 | if (trace->frozen) { |
| 295 | /* |
| 296 | * New environment fields may be added to a frozen trace, |
| 297 | * but existing fields may not be changed. |
| 298 | */ |
| 299 | struct bt_value *attribute = |
| 300 | bt_ctf_attributes_get_field_value_by_name( |
| 301 | trace->environment, name); |
| 302 | |
| 303 | if (attribute) { |
| 304 | BT_PUT(attribute); |
| 305 | ret = -1; |
| 306 | goto end; |
| 307 | } |
| 308 | } |
| 309 | |
| 310 | env_value_integer_obj = bt_value_integer_create_init(value); |
| 311 | if (!env_value_integer_obj) { |
| 312 | ret = -1; |
| 313 | goto end; |
| 314 | } |
| 315 | |
| 316 | ret = bt_ctf_trace_set_environment_field(trace, name, |
| 317 | env_value_integer_obj); |
| 318 | if (trace->frozen) { |
| 319 | bt_value_freeze(env_value_integer_obj); |
| 320 | } |
| 321 | end: |
| 322 | BT_PUT(env_value_integer_obj); |
| 323 | return ret; |
| 324 | } |
| 325 | |
| 326 | int64_t bt_ctf_trace_get_environment_field_count(struct bt_ctf_trace *trace) |
| 327 | { |
| 328 | int64_t ret = 0; |
| 329 | |
| 330 | if (!trace) { |
| 331 | ret = -1; |
| 332 | goto end; |
| 333 | } |
| 334 | |
| 335 | ret = bt_ctf_attributes_get_count(trace->environment); |
| 336 | |
| 337 | end: |
| 338 | return ret; |
| 339 | } |
| 340 | |
| 341 | const char * |
| 342 | bt_ctf_trace_get_environment_field_name(struct bt_ctf_trace *trace, |
| 343 | int index) |
| 344 | { |
| 345 | const char *ret = NULL; |
| 346 | |
| 347 | if (!trace) { |
| 348 | goto end; |
| 349 | } |
| 350 | |
| 351 | ret = bt_ctf_attributes_get_field_name(trace->environment, index); |
| 352 | |
| 353 | end: |
| 354 | return ret; |
| 355 | } |
| 356 | |
| 357 | struct bt_value *bt_ctf_trace_get_environment_field_value( |
| 358 | struct bt_ctf_trace *trace, int index) |
| 359 | { |
| 360 | struct bt_value *ret = NULL; |
| 361 | |
| 362 | if (!trace) { |
| 363 | goto end; |
| 364 | } |
| 365 | |
| 366 | ret = bt_ctf_attributes_get_field_value(trace->environment, index); |
| 367 | |
| 368 | end: |
| 369 | return ret; |
| 370 | } |
| 371 | |
| 372 | struct bt_value *bt_ctf_trace_get_environment_field_value_by_name( |
| 373 | struct bt_ctf_trace *trace, const char *name) |
| 374 | { |
| 375 | struct bt_value *ret = NULL; |
| 376 | |
| 377 | if (!trace || !name) { |
| 378 | goto end; |
| 379 | } |
| 380 | |
| 381 | ret = bt_ctf_attributes_get_field_value_by_name(trace->environment, |
| 382 | name); |
| 383 | |
| 384 | end: |
| 385 | return ret; |
| 386 | } |
| 387 | |
| 388 | int bt_ctf_trace_add_clock_class(struct bt_ctf_trace *trace, |
| 389 | struct bt_ctf_clock_class *clock_class) |
| 390 | { |
| 391 | int ret = 0; |
| 392 | |
| 393 | if (!trace || trace->is_static || |
| 394 | !bt_ctf_clock_class_is_valid(clock_class)) { |
| 395 | ret = -1; |
| 396 | goto end; |
| 397 | } |
| 398 | |
| 399 | /* Check for duplicate clock classes */ |
| 400 | if (bt_ctf_trace_has_clock_class(trace, clock_class)) { |
| 401 | ret = -1; |
| 402 | goto end; |
| 403 | } |
| 404 | |
| 405 | bt_get(clock_class); |
| 406 | g_ptr_array_add(trace->clocks, clock_class); |
| 407 | |
| 408 | if (trace->frozen) { |
| 409 | bt_ctf_clock_class_freeze(clock_class); |
| 410 | } |
| 411 | end: |
| 412 | return ret; |
| 413 | } |
| 414 | |
| 415 | int64_t bt_ctf_trace_get_clock_class_count(struct bt_ctf_trace *trace) |
| 416 | { |
| 417 | int64_t ret = -1; |
| 418 | |
| 419 | if (!trace) { |
| 420 | goto end; |
| 421 | } |
| 422 | |
| 423 | ret = trace->clocks->len; |
| 424 | end: |
| 425 | return ret; |
| 426 | } |
| 427 | |
| 428 | struct bt_ctf_clock_class *bt_ctf_trace_get_clock_class( |
| 429 | struct bt_ctf_trace *trace, int index) |
| 430 | { |
| 431 | struct bt_ctf_clock_class *clock_class = NULL; |
| 432 | |
| 433 | if (!trace || index < 0 || index >= trace->clocks->len) { |
| 434 | goto end; |
| 435 | } |
| 436 | |
| 437 | clock_class = g_ptr_array_index(trace->clocks, index); |
| 438 | bt_get(clock_class); |
| 439 | end: |
| 440 | return clock_class; |
| 441 | } |
| 442 | |
| 443 | int bt_ctf_trace_add_stream_class(struct bt_ctf_trace *trace, |
| 444 | struct bt_ctf_stream_class *stream_class) |
| 445 | { |
| 446 | int ret; |
| 447 | int64_t i; |
| 448 | int64_t stream_id; |
| 449 | struct bt_ctf_validation_output trace_sc_validation_output = { 0 }; |
| 450 | struct bt_ctf_validation_output *ec_validation_outputs = NULL; |
| 451 | const enum bt_ctf_validation_flag trace_sc_validation_flags = |
| 452 | BT_CTF_VALIDATION_FLAG_TRACE | |
| 453 | BT_CTF_VALIDATION_FLAG_STREAM; |
| 454 | const enum bt_ctf_validation_flag ec_validation_flags = |
| 455 | BT_CTF_VALIDATION_FLAG_EVENT; |
| 456 | struct bt_ctf_field_type *packet_header_type = NULL; |
| 457 | struct bt_ctf_field_type *packet_context_type = NULL; |
| 458 | struct bt_ctf_field_type *event_header_type = NULL; |
| 459 | struct bt_ctf_field_type *stream_event_ctx_type = NULL; |
| 460 | int64_t event_class_count; |
| 461 | struct bt_ctf_trace *current_parent_trace = NULL; |
| 462 | |
| 463 | if (!trace || !stream_class || trace->is_static) { |
| 464 | ret = -1; |
| 465 | goto end; |
| 466 | } |
| 467 | |
| 468 | /* |
| 469 | * At the end of this function we freeze the trace, so its |
| 470 | * native byte order must NOT be BT_CTF_BYTE_ORDER_NATIVE. |
| 471 | */ |
| 472 | if (trace->native_byte_order == BT_CTF_BYTE_ORDER_NATIVE) { |
| 473 | ret = -1; |
| 474 | goto end; |
| 475 | } |
| 476 | |
| 477 | current_parent_trace = bt_ctf_stream_class_get_trace(stream_class); |
| 478 | if (current_parent_trace) { |
| 479 | /* Stream class is already associated to a trace, abort. */ |
| 480 | ret = -1; |
| 481 | goto end; |
| 482 | } |
| 483 | |
| 484 | event_class_count = |
| 485 | bt_ctf_stream_class_get_event_class_count(stream_class); |
| 486 | assert(event_class_count >= 0); |
| 487 | |
| 488 | /* Check for duplicate stream classes */ |
| 489 | for (i = 0; i < trace->stream_classes->len; i++) { |
| 490 | if (trace->stream_classes->pdata[i] == stream_class) { |
| 491 | /* Stream class already registered to the trace */ |
| 492 | ret = -1; |
| 493 | goto end; |
| 494 | } |
| 495 | } |
| 496 | |
| 497 | if (stream_class->clock) { |
| 498 | struct bt_ctf_clock_class *stream_clock_class = |
| 499 | stream_class->clock->clock_class; |
| 500 | |
| 501 | if (trace->is_created_by_writer) { |
| 502 | /* |
| 503 | * Make sure this clock was also added to the |
| 504 | * trace (potentially through its CTF writer |
| 505 | * owner). |
| 506 | */ |
| 507 | size_t i; |
| 508 | |
| 509 | for (i = 0; i < trace->clocks->len; i++) { |
| 510 | if (trace->clocks->pdata[i] == |
| 511 | stream_clock_class) { |
| 512 | /* Found! */ |
| 513 | break; |
| 514 | } |
| 515 | } |
| 516 | |
| 517 | if (i == trace->clocks->len) { |
| 518 | /* Not found */ |
| 519 | ret = -1; |
| 520 | goto end; |
| 521 | } |
| 522 | } else { |
| 523 | /* |
| 524 | * This trace was NOT created by a CTF writer, |
| 525 | * thus do not allow the stream class to add to |
| 526 | * have a clock at all. Those are two |
| 527 | * independent APIs (non-writer and writer |
| 528 | * APIs), and isolating them simplifies things. |
| 529 | */ |
| 530 | ret = -1; |
| 531 | goto end; |
| 532 | } |
| 533 | } |
| 534 | |
| 535 | /* |
| 536 | * We're about to freeze both the trace and the stream class. |
| 537 | * Also, each event class contained in this stream class are |
| 538 | * already frozen. |
| 539 | * |
| 540 | * This trace, this stream class, and all its event classes |
| 541 | * should be valid at this point. |
| 542 | * |
| 543 | * Validate trace and stream class first, then each event |
| 544 | * class of this stream class can be validated individually. |
| 545 | */ |
| 546 | packet_header_type = |
| 547 | bt_ctf_trace_get_packet_header_type(trace); |
| 548 | packet_context_type = |
| 549 | bt_ctf_stream_class_get_packet_context_type(stream_class); |
| 550 | event_header_type = |
| 551 | bt_ctf_stream_class_get_event_header_type(stream_class); |
| 552 | stream_event_ctx_type = |
| 553 | bt_ctf_stream_class_get_event_context_type(stream_class); |
| 554 | ret = bt_ctf_validate_class_types(trace->environment, |
| 555 | packet_header_type, packet_context_type, event_header_type, |
| 556 | stream_event_ctx_type, NULL, NULL, trace->valid, |
| 557 | stream_class->valid, 1, &trace_sc_validation_output, |
| 558 | trace_sc_validation_flags); |
| 559 | BT_PUT(packet_header_type); |
| 560 | BT_PUT(packet_context_type); |
| 561 | BT_PUT(event_header_type); |
| 562 | BT_PUT(stream_event_ctx_type); |
| 563 | |
| 564 | if (ret) { |
| 565 | /* |
| 566 | * This means something went wrong during the validation |
| 567 | * process, not that the objects are invalid. |
| 568 | */ |
| 569 | goto end; |
| 570 | } |
| 571 | |
| 572 | if ((trace_sc_validation_output.valid_flags & |
| 573 | trace_sc_validation_flags) != |
| 574 | trace_sc_validation_flags) { |
| 575 | /* Invalid trace/stream class */ |
| 576 | ret = -1; |
| 577 | goto end; |
| 578 | } |
| 579 | |
| 580 | if (event_class_count > 0) { |
| 581 | ec_validation_outputs = g_new0(struct bt_ctf_validation_output, |
| 582 | event_class_count); |
| 583 | if (!ec_validation_outputs) { |
| 584 | ret = -1; |
| 585 | goto end; |
| 586 | } |
| 587 | } |
| 588 | |
| 589 | /* Validate each event class individually */ |
| 590 | for (i = 0; i < event_class_count; i++) { |
| 591 | struct bt_ctf_event_class *event_class = |
| 592 | bt_ctf_stream_class_get_event_class(stream_class, i); |
| 593 | struct bt_ctf_field_type *event_context_type = NULL; |
| 594 | struct bt_ctf_field_type *event_payload_type = NULL; |
| 595 | |
| 596 | event_context_type = |
| 597 | bt_ctf_event_class_get_context_type(event_class); |
| 598 | event_payload_type = |
| 599 | bt_ctf_event_class_get_payload_type(event_class); |
| 600 | |
| 601 | /* |
| 602 | * It is important to use the field types returned by |
| 603 | * the previous trace and stream class validation here |
| 604 | * because copies could have been made. |
| 605 | */ |
| 606 | ret = bt_ctf_validate_class_types(trace->environment, |
| 607 | trace_sc_validation_output.packet_header_type, |
| 608 | trace_sc_validation_output.packet_context_type, |
| 609 | trace_sc_validation_output.event_header_type, |
| 610 | trace_sc_validation_output.stream_event_ctx_type, |
| 611 | event_context_type, event_payload_type, |
| 612 | 1, 1, event_class->valid, &ec_validation_outputs[i], |
| 613 | ec_validation_flags); |
| 614 | BT_PUT(event_context_type); |
| 615 | BT_PUT(event_payload_type); |
| 616 | BT_PUT(event_class); |
| 617 | |
| 618 | if (ret) { |
| 619 | goto end; |
| 620 | } |
| 621 | |
| 622 | if ((ec_validation_outputs[i].valid_flags & |
| 623 | ec_validation_flags) != ec_validation_flags) { |
| 624 | /* Invalid event class */ |
| 625 | ret = -1; |
| 626 | goto end; |
| 627 | } |
| 628 | } |
| 629 | |
| 630 | stream_id = bt_ctf_stream_class_get_id(stream_class); |
| 631 | if (stream_id < 0) { |
| 632 | stream_id = trace->next_stream_id++; |
| 633 | |
| 634 | /* Try to assign a new stream id */ |
| 635 | for (i = 0; i < trace->stream_classes->len; i++) { |
| 636 | if (stream_id == bt_ctf_stream_class_get_id( |
| 637 | trace->stream_classes->pdata[i])) { |
| 638 | /* Duplicate stream id found */ |
| 639 | ret = -1; |
| 640 | goto end; |
| 641 | } |
| 642 | } |
| 643 | |
| 644 | if (bt_ctf_stream_class_set_id_no_check(stream_class, |
| 645 | stream_id)) { |
| 646 | /* TODO Should retry with a different stream id */ |
| 647 | ret = -1; |
| 648 | goto end; |
| 649 | } |
| 650 | } |
| 651 | |
| 652 | bt_object_set_parent(stream_class, trace); |
| 653 | g_ptr_array_add(trace->stream_classes, stream_class); |
| 654 | |
| 655 | /* |
| 656 | * At this point we know that the function will be successful. |
| 657 | * Therefore we can replace the trace and stream class field |
| 658 | * types with what's in their validation output structure and |
| 659 | * mark them as valid. We can also replace the field types of |
| 660 | * all the event classes of the stream class and mark them as |
| 661 | * valid. |
| 662 | */ |
| 663 | bt_ctf_validation_replace_types(trace, stream_class, NULL, |
| 664 | &trace_sc_validation_output, trace_sc_validation_flags); |
| 665 | trace->valid = 1; |
| 666 | stream_class->valid = 1; |
| 667 | |
| 668 | /* |
| 669 | * Put what was not moved in bt_ctf_validation_replace_types(). |
| 670 | */ |
| 671 | bt_ctf_validation_output_put_types(&trace_sc_validation_output); |
| 672 | |
| 673 | for (i = 0; i < event_class_count; i++) { |
| 674 | struct bt_ctf_event_class *event_class = |
| 675 | bt_ctf_stream_class_get_event_class(stream_class, i); |
| 676 | |
| 677 | bt_ctf_validation_replace_types(NULL, NULL, event_class, |
| 678 | &ec_validation_outputs[i], ec_validation_flags); |
| 679 | event_class->valid = 1; |
| 680 | BT_PUT(event_class); |
| 681 | |
| 682 | /* |
| 683 | * Put what was not moved in |
| 684 | * bt_ctf_validation_replace_types(). |
| 685 | */ |
| 686 | bt_ctf_validation_output_put_types(&ec_validation_outputs[i]); |
| 687 | } |
| 688 | |
| 689 | /* |
| 690 | * Freeze the trace and the stream class. |
| 691 | */ |
| 692 | bt_ctf_stream_class_freeze(stream_class); |
| 693 | bt_ctf_trace_freeze(trace); |
| 694 | |
| 695 | /* Notifiy listeners of the trace's schema modification. */ |
| 696 | bt_ctf_stream_class_visit(stream_class, |
| 697 | bt_ctf_trace_object_modification, trace); |
| 698 | end: |
| 699 | if (ret) { |
| 700 | bt_object_set_parent(stream_class, NULL); |
| 701 | |
| 702 | if (ec_validation_outputs) { |
| 703 | for (i = 0; i < event_class_count; i++) { |
| 704 | bt_ctf_validation_output_put_types( |
| 705 | &ec_validation_outputs[i]); |
| 706 | } |
| 707 | } |
| 708 | } |
| 709 | |
| 710 | g_free(ec_validation_outputs); |
| 711 | bt_ctf_validation_output_put_types(&trace_sc_validation_output); |
| 712 | bt_put(current_parent_trace); |
| 713 | assert(!packet_header_type); |
| 714 | assert(!packet_context_type); |
| 715 | assert(!event_header_type); |
| 716 | assert(!stream_event_ctx_type); |
| 717 | |
| 718 | return ret; |
| 719 | } |
| 720 | |
| 721 | int64_t bt_ctf_trace_get_stream_count(struct bt_ctf_trace *trace) |
| 722 | { |
| 723 | int64_t ret; |
| 724 | |
| 725 | if (!trace) { |
| 726 | ret = -1; |
| 727 | goto end; |
| 728 | } |
| 729 | |
| 730 | ret = trace->streams->len; |
| 731 | |
| 732 | end: |
| 733 | return ret; |
| 734 | } |
| 735 | |
| 736 | struct bt_ctf_stream *bt_ctf_trace_get_stream(struct bt_ctf_trace *trace, |
| 737 | int index) |
| 738 | { |
| 739 | struct bt_ctf_stream *stream = NULL; |
| 740 | |
| 741 | if (!trace || index >= trace->streams->len) { |
| 742 | goto end; |
| 743 | } |
| 744 | |
| 745 | stream = bt_get(g_ptr_array_index(trace->streams, index)); |
| 746 | |
| 747 | end: |
| 748 | return stream; |
| 749 | } |
| 750 | |
| 751 | int64_t bt_ctf_trace_get_stream_class_count(struct bt_ctf_trace *trace) |
| 752 | { |
| 753 | int64_t ret; |
| 754 | |
| 755 | if (!trace) { |
| 756 | ret = -1; |
| 757 | goto end; |
| 758 | } |
| 759 | |
| 760 | ret = trace->stream_classes->len; |
| 761 | end: |
| 762 | return ret; |
| 763 | } |
| 764 | |
| 765 | struct bt_ctf_stream_class *bt_ctf_trace_get_stream_class( |
| 766 | struct bt_ctf_trace *trace, int index) |
| 767 | { |
| 768 | struct bt_ctf_stream_class *stream_class = NULL; |
| 769 | |
| 770 | if (!trace || index < 0 || index >= trace->stream_classes->len) { |
| 771 | goto end; |
| 772 | } |
| 773 | |
| 774 | stream_class = g_ptr_array_index(trace->stream_classes, index); |
| 775 | bt_get(stream_class); |
| 776 | end: |
| 777 | return stream_class; |
| 778 | } |
| 779 | |
| 780 | struct bt_ctf_stream_class *bt_ctf_trace_get_stream_class_by_id( |
| 781 | struct bt_ctf_trace *trace, uint32_t id) |
| 782 | { |
| 783 | int i; |
| 784 | struct bt_ctf_stream_class *stream_class = NULL; |
| 785 | |
| 786 | if (!trace) { |
| 787 | goto end; |
| 788 | } |
| 789 | |
| 790 | for (i = 0; i < trace->stream_classes->len; i++) { |
| 791 | struct bt_ctf_stream_class *stream_class_candidate; |
| 792 | |
| 793 | stream_class_candidate = |
| 794 | g_ptr_array_index(trace->stream_classes, i); |
| 795 | |
| 796 | if (bt_ctf_stream_class_get_id(stream_class_candidate) == |
| 797 | (int64_t) id) { |
| 798 | stream_class = stream_class_candidate; |
| 799 | bt_get(stream_class); |
| 800 | goto end; |
| 801 | } |
| 802 | } |
| 803 | |
| 804 | end: |
| 805 | return stream_class; |
| 806 | } |
| 807 | |
| 808 | struct bt_ctf_clock_class *bt_ctf_trace_get_clock_class_by_name( |
| 809 | struct bt_ctf_trace *trace, const char *name) |
| 810 | { |
| 811 | size_t i; |
| 812 | struct bt_ctf_clock_class *clock_class = NULL; |
| 813 | |
| 814 | if (!trace || !name) { |
| 815 | goto end; |
| 816 | } |
| 817 | |
| 818 | for (i = 0; i < trace->clocks->len; i++) { |
| 819 | struct bt_ctf_clock_class *cur_clk = |
| 820 | g_ptr_array_index(trace->clocks, i); |
| 821 | const char *cur_clk_name = bt_ctf_clock_class_get_name(cur_clk); |
| 822 | |
| 823 | if (!cur_clk_name) { |
| 824 | goto end; |
| 825 | } |
| 826 | |
| 827 | if (!strcmp(cur_clk_name, name)) { |
| 828 | clock_class = cur_clk; |
| 829 | bt_get(clock_class); |
| 830 | goto end; |
| 831 | } |
| 832 | } |
| 833 | |
| 834 | end: |
| 835 | return clock_class; |
| 836 | } |
| 837 | |
| 838 | BT_HIDDEN |
| 839 | bool bt_ctf_trace_has_clock_class(struct bt_ctf_trace *trace, |
| 840 | struct bt_ctf_clock_class *clock_class) |
| 841 | { |
| 842 | struct search_query query = { .value = clock_class, .found = 0 }; |
| 843 | |
| 844 | assert(trace); |
| 845 | assert(clock_class); |
| 846 | |
| 847 | g_ptr_array_foreach(trace->clocks, value_exists, &query); |
| 848 | return query.found; |
| 849 | } |
| 850 | |
| 851 | BT_HIDDEN |
| 852 | const char *get_byte_order_string(enum bt_ctf_byte_order byte_order) |
| 853 | { |
| 854 | const char *string; |
| 855 | |
| 856 | switch (byte_order) { |
| 857 | case BT_CTF_BYTE_ORDER_LITTLE_ENDIAN: |
| 858 | string = "le"; |
| 859 | break; |
| 860 | case BT_CTF_BYTE_ORDER_BIG_ENDIAN: |
| 861 | string = "be"; |
| 862 | break; |
| 863 | case BT_CTF_BYTE_ORDER_NATIVE: |
| 864 | string = "native"; |
| 865 | break; |
| 866 | default: |
| 867 | assert(false); |
| 868 | } |
| 869 | |
| 870 | return string; |
| 871 | } |
| 872 | |
| 873 | static |
| 874 | int append_trace_metadata(struct bt_ctf_trace *trace, |
| 875 | struct metadata_context *context) |
| 876 | { |
| 877 | unsigned char *uuid = trace->uuid; |
| 878 | int ret; |
| 879 | |
| 880 | g_string_append(context->string, "trace {\n"); |
| 881 | |
| 882 | g_string_append(context->string, "\tmajor = 1;\n"); |
| 883 | g_string_append(context->string, "\tminor = 8;\n"); |
| 884 | assert(trace->native_byte_order == BT_CTF_BYTE_ORDER_LITTLE_ENDIAN || |
| 885 | trace->native_byte_order == BT_CTF_BYTE_ORDER_BIG_ENDIAN || |
| 886 | trace->native_byte_order == BT_CTF_BYTE_ORDER_NETWORK); |
| 887 | g_string_append_printf(context->string, |
| 888 | "\tuuid = \"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\";\n", |
| 889 | uuid[0], uuid[1], uuid[2], uuid[3], |
| 890 | uuid[4], uuid[5], uuid[6], uuid[7], |
| 891 | uuid[8], uuid[9], uuid[10], uuid[11], |
| 892 | uuid[12], uuid[13], uuid[14], uuid[15]); |
| 893 | g_string_append_printf(context->string, "\tbyte_order = %s;\n", |
| 894 | get_byte_order_string(trace->native_byte_order)); |
| 895 | |
| 896 | g_string_append(context->string, "\tpacket.header := "); |
| 897 | context->current_indentation_level++; |
| 898 | g_string_assign(context->field_name, ""); |
| 899 | ret = bt_ctf_field_type_serialize(trace->packet_header_type, |
| 900 | context); |
| 901 | if (ret) { |
| 902 | goto end; |
| 903 | } |
| 904 | context->current_indentation_level--; |
| 905 | |
| 906 | g_string_append(context->string, ";\n};\n\n"); |
| 907 | end: |
| 908 | return ret; |
| 909 | } |
| 910 | |
| 911 | static |
| 912 | void append_env_metadata(struct bt_ctf_trace *trace, |
| 913 | struct metadata_context *context) |
| 914 | { |
| 915 | int64_t i; |
| 916 | int64_t env_size; |
| 917 | |
| 918 | env_size = bt_ctf_attributes_get_count(trace->environment); |
| 919 | |
| 920 | if (env_size <= 0) { |
| 921 | return; |
| 922 | } |
| 923 | |
| 924 | g_string_append(context->string, "env {\n"); |
| 925 | |
| 926 | for (i = 0; i < env_size; i++) { |
| 927 | struct bt_value *env_field_value_obj = NULL; |
| 928 | const char *entry_name; |
| 929 | |
| 930 | entry_name = bt_ctf_attributes_get_field_name( |
| 931 | trace->environment, i); |
| 932 | env_field_value_obj = bt_ctf_attributes_get_field_value( |
| 933 | trace->environment, i); |
| 934 | |
| 935 | if (!entry_name || !env_field_value_obj) { |
| 936 | goto loop_next; |
| 937 | } |
| 938 | |
| 939 | switch (bt_value_get_type(env_field_value_obj)) { |
| 940 | case BT_VALUE_TYPE_INTEGER: |
| 941 | { |
| 942 | int ret; |
| 943 | int64_t int_value; |
| 944 | |
| 945 | ret = bt_value_integer_get(env_field_value_obj, |
| 946 | &int_value); |
| 947 | |
| 948 | if (ret) { |
| 949 | goto loop_next; |
| 950 | } |
| 951 | |
| 952 | g_string_append_printf(context->string, |
| 953 | "\t%s = %" PRId64 ";\n", entry_name, |
| 954 | int_value); |
| 955 | break; |
| 956 | } |
| 957 | case BT_VALUE_TYPE_STRING: |
| 958 | { |
| 959 | int ret; |
| 960 | const char *str_value; |
| 961 | char *escaped_str = NULL; |
| 962 | |
| 963 | ret = bt_value_string_get(env_field_value_obj, |
| 964 | &str_value); |
| 965 | |
| 966 | if (ret) { |
| 967 | goto loop_next; |
| 968 | } |
| 969 | |
| 970 | escaped_str = g_strescape(str_value, NULL); |
| 971 | |
| 972 | if (!escaped_str) { |
| 973 | goto loop_next; |
| 974 | } |
| 975 | |
| 976 | g_string_append_printf(context->string, |
| 977 | "\t%s = \"%s\";\n", entry_name, escaped_str); |
| 978 | free(escaped_str); |
| 979 | break; |
| 980 | } |
| 981 | |
| 982 | default: |
| 983 | goto loop_next; |
| 984 | } |
| 985 | |
| 986 | loop_next: |
| 987 | BT_PUT(env_field_value_obj); |
| 988 | } |
| 989 | |
| 990 | g_string_append(context->string, "};\n\n"); |
| 991 | } |
| 992 | |
| 993 | char *bt_ctf_trace_get_metadata_string(struct bt_ctf_trace *trace) |
| 994 | { |
| 995 | char *metadata = NULL; |
| 996 | struct metadata_context *context = NULL; |
| 997 | int err = 0; |
| 998 | size_t i; |
| 999 | |
| 1000 | if (!trace) { |
| 1001 | goto end; |
| 1002 | } |
| 1003 | |
| 1004 | context = g_new0(struct metadata_context, 1); |
| 1005 | if (!context) { |
| 1006 | goto end; |
| 1007 | } |
| 1008 | |
| 1009 | context->field_name = g_string_sized_new(DEFAULT_IDENTIFIER_SIZE); |
| 1010 | context->string = g_string_sized_new(DEFAULT_METADATA_STRING_SIZE); |
| 1011 | g_string_append(context->string, "/* CTF 1.8 */\n\n"); |
| 1012 | if (append_trace_metadata(trace, context)) { |
| 1013 | goto error; |
| 1014 | } |
| 1015 | append_env_metadata(trace, context); |
| 1016 | g_ptr_array_foreach(trace->clocks, |
| 1017 | (GFunc)bt_ctf_clock_class_serialize, context); |
| 1018 | |
| 1019 | for (i = 0; i < trace->stream_classes->len; i++) { |
| 1020 | err = bt_ctf_stream_class_serialize( |
| 1021 | trace->stream_classes->pdata[i], context); |
| 1022 | if (err) { |
| 1023 | goto error; |
| 1024 | } |
| 1025 | } |
| 1026 | |
| 1027 | metadata = context->string->str; |
| 1028 | error: |
| 1029 | g_string_free(context->string, err ? TRUE : FALSE); |
| 1030 | g_string_free(context->field_name, TRUE); |
| 1031 | g_free(context); |
| 1032 | end: |
| 1033 | return metadata; |
| 1034 | } |
| 1035 | |
| 1036 | enum bt_ctf_byte_order bt_ctf_trace_get_byte_order(struct bt_ctf_trace *trace) |
| 1037 | { |
| 1038 | enum bt_ctf_byte_order ret = BT_CTF_BYTE_ORDER_UNKNOWN; |
| 1039 | |
| 1040 | if (!trace) { |
| 1041 | goto end; |
| 1042 | } |
| 1043 | |
| 1044 | ret = trace->native_byte_order; |
| 1045 | |
| 1046 | end: |
| 1047 | return ret; |
| 1048 | } |
| 1049 | |
| 1050 | int bt_ctf_trace_set_native_byte_order(struct bt_ctf_trace *trace, |
| 1051 | enum bt_ctf_byte_order byte_order) |
| 1052 | { |
| 1053 | int ret = 0; |
| 1054 | |
| 1055 | if (!trace || trace->frozen) { |
| 1056 | ret = -1; |
| 1057 | goto end; |
| 1058 | } |
| 1059 | |
| 1060 | if (byte_order != BT_CTF_BYTE_ORDER_LITTLE_ENDIAN && |
| 1061 | byte_order != BT_CTF_BYTE_ORDER_BIG_ENDIAN && |
| 1062 | byte_order != BT_CTF_BYTE_ORDER_NETWORK) { |
| 1063 | ret = -1; |
| 1064 | goto end; |
| 1065 | } |
| 1066 | |
| 1067 | trace->native_byte_order = byte_order; |
| 1068 | |
| 1069 | end: |
| 1070 | return ret; |
| 1071 | } |
| 1072 | |
| 1073 | struct bt_ctf_field_type *bt_ctf_trace_get_packet_header_type( |
| 1074 | struct bt_ctf_trace *trace) |
| 1075 | { |
| 1076 | struct bt_ctf_field_type *field_type = NULL; |
| 1077 | |
| 1078 | if (!trace) { |
| 1079 | goto end; |
| 1080 | } |
| 1081 | |
| 1082 | bt_get(trace->packet_header_type); |
| 1083 | field_type = trace->packet_header_type; |
| 1084 | end: |
| 1085 | return field_type; |
| 1086 | } |
| 1087 | |
| 1088 | int bt_ctf_trace_set_packet_header_type(struct bt_ctf_trace *trace, |
| 1089 | struct bt_ctf_field_type *packet_header_type) |
| 1090 | { |
| 1091 | int ret = 0; |
| 1092 | |
| 1093 | if (!trace || trace->frozen) { |
| 1094 | ret = -1; |
| 1095 | goto end; |
| 1096 | } |
| 1097 | |
| 1098 | /* packet_header_type must be a structure. */ |
| 1099 | if (packet_header_type && |
| 1100 | bt_ctf_field_type_get_type_id(packet_header_type) != |
| 1101 | BT_CTF_FIELD_TYPE_ID_STRUCT) { |
| 1102 | ret = -1; |
| 1103 | goto end; |
| 1104 | } |
| 1105 | |
| 1106 | bt_put(trace->packet_header_type); |
| 1107 | trace->packet_header_type = bt_get(packet_header_type); |
| 1108 | end: |
| 1109 | return ret; |
| 1110 | } |
| 1111 | |
| 1112 | static |
| 1113 | int64_t get_stream_class_count(void *element) |
| 1114 | { |
| 1115 | return bt_ctf_trace_get_stream_class_count( |
| 1116 | (struct bt_ctf_trace *) element); |
| 1117 | } |
| 1118 | |
| 1119 | static |
| 1120 | void *get_stream_class(void *element, int i) |
| 1121 | { |
| 1122 | return bt_ctf_trace_get_stream_class( |
| 1123 | (struct bt_ctf_trace *) element, i); |
| 1124 | } |
| 1125 | |
| 1126 | static |
| 1127 | int visit_stream_class(void *object, bt_ctf_visitor visitor,void *data) |
| 1128 | { |
| 1129 | return bt_ctf_stream_class_visit(object, visitor, data); |
| 1130 | } |
| 1131 | |
| 1132 | int bt_ctf_trace_visit(struct bt_ctf_trace *trace, |
| 1133 | bt_ctf_visitor visitor, void *data) |
| 1134 | { |
| 1135 | int ret; |
| 1136 | struct bt_ctf_object obj = |
| 1137 | { .object = trace, .type = BT_CTF_OBJECT_TYPE_TRACE }; |
| 1138 | |
| 1139 | if (!trace || !visitor) { |
| 1140 | ret = -1; |
| 1141 | goto end; |
| 1142 | } |
| 1143 | |
| 1144 | ret = visitor_helper(&obj, get_stream_class_count, |
| 1145 | get_stream_class, visit_stream_class, visitor, data); |
| 1146 | end: |
| 1147 | return ret; |
| 1148 | } |
| 1149 | |
| 1150 | static |
| 1151 | int invoke_listener(struct bt_ctf_object *object, void *data) |
| 1152 | { |
| 1153 | struct listener_wrapper *listener_wrapper = data; |
| 1154 | |
| 1155 | listener_wrapper->listener(object, listener_wrapper->data); |
| 1156 | return 0; |
| 1157 | } |
| 1158 | |
| 1159 | int bt_ctf_trace_add_listener(struct bt_ctf_trace *trace, |
| 1160 | bt_ctf_listener_cb listener, void *listener_data) |
| 1161 | { |
| 1162 | int ret = 0; |
| 1163 | struct listener_wrapper *listener_wrapper = |
| 1164 | g_new0(struct listener_wrapper, 1); |
| 1165 | |
| 1166 | if (!trace || !listener || !listener_wrapper) { |
| 1167 | ret = -1; |
| 1168 | goto error; |
| 1169 | } |
| 1170 | |
| 1171 | listener_wrapper->listener = listener; |
| 1172 | listener_wrapper->data = listener_data; |
| 1173 | |
| 1174 | /* Visit the current schema. */ |
| 1175 | ret = bt_ctf_trace_visit(trace, invoke_listener, listener_wrapper); |
| 1176 | if (ret) { |
| 1177 | goto error; |
| 1178 | } |
| 1179 | |
| 1180 | /* |
| 1181 | * Add listener to the array of callbacks which will be invoked on |
| 1182 | * schema changes. |
| 1183 | */ |
| 1184 | g_ptr_array_add(trace->listeners, listener_wrapper); |
| 1185 | return ret; |
| 1186 | error: |
| 1187 | g_free(listener_wrapper); |
| 1188 | return ret; |
| 1189 | } |
| 1190 | |
| 1191 | BT_HIDDEN |
| 1192 | int bt_ctf_trace_object_modification(struct bt_ctf_object *object, |
| 1193 | void *trace_ptr) |
| 1194 | { |
| 1195 | size_t i; |
| 1196 | struct bt_ctf_trace *trace = trace_ptr; |
| 1197 | |
| 1198 | assert(trace); |
| 1199 | assert(object); |
| 1200 | |
| 1201 | if (trace->listeners->len == 0) { |
| 1202 | goto end; |
| 1203 | } |
| 1204 | |
| 1205 | for (i = 0; i < trace->listeners->len; i++) { |
| 1206 | struct listener_wrapper *listener = |
| 1207 | g_ptr_array_index(trace->listeners, i); |
| 1208 | |
| 1209 | listener->listener(object, listener->data); |
| 1210 | } |
| 1211 | end: |
| 1212 | return 0; |
| 1213 | } |
| 1214 | |
| 1215 | BT_HIDDEN |
| 1216 | struct bt_ctf_field_type *get_field_type(enum field_type_alias alias) |
| 1217 | { |
| 1218 | int ret; |
| 1219 | unsigned int alignment, size; |
| 1220 | struct bt_ctf_field_type *field_type = NULL; |
| 1221 | |
| 1222 | if (alias >= NR_FIELD_TYPE_ALIAS) { |
| 1223 | goto end; |
| 1224 | } |
| 1225 | |
| 1226 | alignment = field_type_aliases_alignments[alias]; |
| 1227 | size = field_type_aliases_sizes[alias]; |
| 1228 | field_type = bt_ctf_field_type_integer_create(size); |
| 1229 | ret = bt_ctf_field_type_set_alignment(field_type, alignment); |
| 1230 | if (ret) { |
| 1231 | BT_PUT(field_type); |
| 1232 | } |
| 1233 | end: |
| 1234 | return field_type; |
| 1235 | } |
| 1236 | |
| 1237 | static |
| 1238 | void bt_ctf_trace_freeze(struct bt_ctf_trace *trace) |
| 1239 | { |
| 1240 | int i; |
| 1241 | |
| 1242 | bt_ctf_field_type_freeze(trace->packet_header_type); |
| 1243 | bt_ctf_attributes_freeze(trace->environment); |
| 1244 | |
| 1245 | for (i = 0; i < trace->clocks->len; i++) { |
| 1246 | struct bt_ctf_clock_class *clock_class = |
| 1247 | g_ptr_array_index(trace->clocks, i); |
| 1248 | |
| 1249 | bt_ctf_clock_class_freeze(clock_class); |
| 1250 | } |
| 1251 | |
| 1252 | trace->frozen = 1; |
| 1253 | } |
| 1254 | |
| 1255 | static |
| 1256 | int init_trace_packet_header(struct bt_ctf_trace *trace) |
| 1257 | { |
| 1258 | int ret = 0; |
| 1259 | struct bt_ctf_field *magic = NULL, *uuid_array = NULL; |
| 1260 | struct bt_ctf_field_type *_uint32_t = |
| 1261 | get_field_type(FIELD_TYPE_ALIAS_UINT32_T); |
| 1262 | struct bt_ctf_field_type *_uint8_t = |
| 1263 | get_field_type(FIELD_TYPE_ALIAS_UINT8_T); |
| 1264 | struct bt_ctf_field_type *trace_packet_header_type = |
| 1265 | bt_ctf_field_type_structure_create(); |
| 1266 | struct bt_ctf_field_type *uuid_array_type = |
| 1267 | bt_ctf_field_type_array_create(_uint8_t, 16); |
| 1268 | |
| 1269 | if (!trace_packet_header_type || !uuid_array_type) { |
| 1270 | ret = -1; |
| 1271 | goto end; |
| 1272 | } |
| 1273 | |
| 1274 | ret = bt_ctf_field_type_structure_add_field(trace_packet_header_type, |
| 1275 | _uint32_t, "magic"); |
| 1276 | if (ret) { |
| 1277 | goto end; |
| 1278 | } |
| 1279 | |
| 1280 | ret = bt_ctf_field_type_structure_add_field(trace_packet_header_type, |
| 1281 | uuid_array_type, "uuid"); |
| 1282 | if (ret) { |
| 1283 | goto end; |
| 1284 | } |
| 1285 | |
| 1286 | ret = bt_ctf_field_type_structure_add_field(trace_packet_header_type, |
| 1287 | _uint32_t, "stream_id"); |
| 1288 | if (ret) { |
| 1289 | goto end; |
| 1290 | } |
| 1291 | |
| 1292 | ret = bt_ctf_trace_set_packet_header_type(trace, |
| 1293 | trace_packet_header_type); |
| 1294 | if (ret) { |
| 1295 | goto end; |
| 1296 | } |
| 1297 | end: |
| 1298 | bt_put(uuid_array_type); |
| 1299 | bt_put(_uint32_t); |
| 1300 | bt_put(_uint8_t); |
| 1301 | bt_put(magic); |
| 1302 | bt_put(uuid_array); |
| 1303 | bt_put(trace_packet_header_type); |
| 1304 | return ret; |
| 1305 | } |
| 1306 | |
| 1307 | bool bt_ctf_trace_is_static(struct bt_ctf_trace *trace) |
| 1308 | { |
| 1309 | bool is_static = false; |
| 1310 | |
| 1311 | if (!trace) { |
| 1312 | goto end; |
| 1313 | } |
| 1314 | |
| 1315 | is_static = trace->is_static; |
| 1316 | |
| 1317 | end: |
| 1318 | return is_static; |
| 1319 | } |
| 1320 | |
| 1321 | int bt_ctf_trace_set_is_static(struct bt_ctf_trace *trace) |
| 1322 | { |
| 1323 | int ret = 0; |
| 1324 | |
| 1325 | if (!trace) { |
| 1326 | ret = -1; |
| 1327 | goto end; |
| 1328 | } |
| 1329 | |
| 1330 | trace->is_static = true; |
| 1331 | bt_ctf_trace_freeze(trace); |
| 1332 | |
| 1333 | end: |
| 1334 | return ret; |
| 1335 | } |