| 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 | #define BT_LOG_TAG "TRACE" |
| 30 | #include <babeltrace/lib-logging-internal.h> |
| 31 | |
| 32 | #include <babeltrace/ctf-ir/trace-internal.h> |
| 33 | #include <babeltrace/ctf-ir/clock-class-internal.h> |
| 34 | #include <babeltrace/ctf-ir/stream-internal.h> |
| 35 | #include <babeltrace/ctf-ir/stream-class-internal.h> |
| 36 | #include <babeltrace/ctf-ir/event-internal.h> |
| 37 | #include <babeltrace/ctf-ir/event-class.h> |
| 38 | #include <babeltrace/ctf-ir/event-class-internal.h> |
| 39 | #include <babeltrace/ctf-writer/functor-internal.h> |
| 40 | #include <babeltrace/ctf-writer/clock-internal.h> |
| 41 | #include <babeltrace/ctf-ir/field-types-internal.h> |
| 42 | #include <babeltrace/ctf-ir/attributes-internal.h> |
| 43 | #include <babeltrace/ctf-ir/validation-internal.h> |
| 44 | #include <babeltrace/ctf-ir/visitor-internal.h> |
| 45 | #include <babeltrace/ctf-ir/utils.h> |
| 46 | #include <babeltrace/ctf-ir/utils-internal.h> |
| 47 | #include <babeltrace/compiler-internal.h> |
| 48 | #include <babeltrace/values.h> |
| 49 | #include <babeltrace/values-internal.h> |
| 50 | #include <babeltrace/ref.h> |
| 51 | #include <babeltrace/types.h> |
| 52 | #include <babeltrace/endian-internal.h> |
| 53 | #include <inttypes.h> |
| 54 | #include <stdint.h> |
| 55 | #include <string.h> |
| 56 | #include <stdlib.h> |
| 57 | |
| 58 | #define DEFAULT_IDENTIFIER_SIZE 128 |
| 59 | #define DEFAULT_METADATA_STRING_SIZE 4096 |
| 60 | |
| 61 | struct listener_wrapper { |
| 62 | bt_listener_cb listener; |
| 63 | void *data; |
| 64 | }; |
| 65 | |
| 66 | struct bt_trace_is_static_listener_elem { |
| 67 | bt_trace_is_static_listener func; |
| 68 | bt_trace_listener_removed removed; |
| 69 | void *data; |
| 70 | }; |
| 71 | |
| 72 | static |
| 73 | void bt_trace_destroy(struct bt_object *obj); |
| 74 | static |
| 75 | void bt_trace_freeze(struct bt_trace *trace); |
| 76 | |
| 77 | static |
| 78 | const unsigned int field_type_aliases_alignments[] = { |
| 79 | [FIELD_TYPE_ALIAS_UINT5_T] = 1, |
| 80 | [FIELD_TYPE_ALIAS_UINT8_T ... FIELD_TYPE_ALIAS_UINT16_T] = 8, |
| 81 | [FIELD_TYPE_ALIAS_UINT27_T] = 1, |
| 82 | [FIELD_TYPE_ALIAS_UINT32_T ... FIELD_TYPE_ALIAS_UINT64_T] = 8, |
| 83 | }; |
| 84 | |
| 85 | static |
| 86 | const unsigned int field_type_aliases_sizes[] = { |
| 87 | [FIELD_TYPE_ALIAS_UINT5_T] = 5, |
| 88 | [FIELD_TYPE_ALIAS_UINT8_T] = 8, |
| 89 | [FIELD_TYPE_ALIAS_UINT16_T] = 16, |
| 90 | [FIELD_TYPE_ALIAS_UINT27_T] = 27, |
| 91 | [FIELD_TYPE_ALIAS_UINT32_T] = 32, |
| 92 | [FIELD_TYPE_ALIAS_UINT64_T] = 64, |
| 93 | }; |
| 94 | |
| 95 | struct bt_trace *bt_trace_create(void) |
| 96 | { |
| 97 | struct bt_trace *trace = NULL; |
| 98 | |
| 99 | trace = g_new0(struct bt_trace, 1); |
| 100 | if (!trace) { |
| 101 | BT_LOGE_STR("Failed to allocate one trace."); |
| 102 | goto error; |
| 103 | } |
| 104 | |
| 105 | BT_LOGD_STR("Creating trace object."); |
| 106 | trace->native_byte_order = BT_BYTE_ORDER_UNSPECIFIED; |
| 107 | bt_object_init(trace, bt_trace_destroy); |
| 108 | trace->clocks = g_ptr_array_new_with_free_func( |
| 109 | (GDestroyNotify) bt_put); |
| 110 | if (!trace->clocks) { |
| 111 | BT_LOGE_STR("Failed to allocate one GPtrArray."); |
| 112 | goto error; |
| 113 | } |
| 114 | |
| 115 | trace->streams = g_ptr_array_new_with_free_func( |
| 116 | (GDestroyNotify) bt_object_release); |
| 117 | if (!trace->streams) { |
| 118 | BT_LOGE_STR("Failed to allocate one GPtrArray."); |
| 119 | goto error; |
| 120 | } |
| 121 | |
| 122 | trace->stream_classes = g_ptr_array_new_with_free_func( |
| 123 | (GDestroyNotify) bt_object_release); |
| 124 | if (!trace->stream_classes) { |
| 125 | BT_LOGE_STR("Failed to allocate one GPtrArray."); |
| 126 | goto error; |
| 127 | } |
| 128 | |
| 129 | /* Create the environment array object */ |
| 130 | trace->environment = bt_attributes_create(); |
| 131 | if (!trace->environment) { |
| 132 | BT_LOGE_STR("Cannot create empty attributes object."); |
| 133 | goto error; |
| 134 | } |
| 135 | |
| 136 | trace->listeners = g_ptr_array_new_with_free_func( |
| 137 | (GDestroyNotify) g_free); |
| 138 | if (!trace->listeners) { |
| 139 | BT_LOGE_STR("Failed to allocate one GPtrArray."); |
| 140 | goto error; |
| 141 | } |
| 142 | |
| 143 | trace->is_static_listeners = g_array_new(FALSE, TRUE, |
| 144 | sizeof(struct bt_trace_is_static_listener_elem)); |
| 145 | if (!trace->is_static_listeners) { |
| 146 | BT_LOGE_STR("Failed to allocate one GArray."); |
| 147 | goto error; |
| 148 | } |
| 149 | |
| 150 | BT_LOGD("Created trace object: addr=%p", trace); |
| 151 | return trace; |
| 152 | |
| 153 | error: |
| 154 | BT_PUT(trace); |
| 155 | return trace; |
| 156 | } |
| 157 | |
| 158 | const char *bt_trace_get_name(struct bt_trace *trace) |
| 159 | { |
| 160 | const char *name = NULL; |
| 161 | |
| 162 | if (!trace) { |
| 163 | BT_LOGW_STR("Invalid parameter: trace is NULL."); |
| 164 | goto end; |
| 165 | } |
| 166 | |
| 167 | if (!trace->name) { |
| 168 | goto end; |
| 169 | } |
| 170 | |
| 171 | name = trace->name->str; |
| 172 | end: |
| 173 | return name; |
| 174 | } |
| 175 | |
| 176 | int bt_trace_set_name(struct bt_trace *trace, const char *name) |
| 177 | { |
| 178 | int ret = 0; |
| 179 | |
| 180 | if (!trace) { |
| 181 | BT_LOGW_STR("Invalid parameter: trace is NULL."); |
| 182 | ret = -1; |
| 183 | goto end; |
| 184 | } |
| 185 | |
| 186 | if (!name) { |
| 187 | BT_LOGW_STR("Invalid parameter: name is NULL."); |
| 188 | ret = -1; |
| 189 | goto end; |
| 190 | } |
| 191 | |
| 192 | if (trace->frozen) { |
| 193 | BT_LOGW("Invalid parameter: trace is frozen: " |
| 194 | "addr=%p, name=\"%s\"", |
| 195 | trace, bt_trace_get_name(trace)); |
| 196 | ret = -1; |
| 197 | goto end; |
| 198 | } |
| 199 | |
| 200 | trace->name = trace->name ? g_string_assign(trace->name, name) : |
| 201 | g_string_new(name); |
| 202 | if (!trace->name) { |
| 203 | BT_LOGE_STR("Failed to allocate one GString."); |
| 204 | ret = -1; |
| 205 | goto end; |
| 206 | } |
| 207 | |
| 208 | BT_LOGV("Set trace's name: addr=%p, name=\"%s\"", trace, name); |
| 209 | |
| 210 | end: |
| 211 | return ret; |
| 212 | } |
| 213 | |
| 214 | const unsigned char *bt_trace_get_uuid(struct bt_trace *trace) |
| 215 | { |
| 216 | return trace && trace->uuid_set ? trace->uuid : NULL; |
| 217 | } |
| 218 | |
| 219 | int bt_trace_set_uuid(struct bt_trace *trace, const unsigned char *uuid) |
| 220 | { |
| 221 | int ret = 0; |
| 222 | |
| 223 | if (!trace) { |
| 224 | BT_LOGW_STR("Invalid parameter: trace is NULL."); |
| 225 | ret = -1; |
| 226 | goto end; |
| 227 | } |
| 228 | |
| 229 | if (!uuid) { |
| 230 | BT_LOGW_STR("Invalid parameter: UUID is NULL."); |
| 231 | ret = -1; |
| 232 | goto end; |
| 233 | } |
| 234 | |
| 235 | if (trace->frozen) { |
| 236 | BT_LOGW("Invalid parameter: trace is frozen: " |
| 237 | "addr=%p, name=\"%s\"", |
| 238 | trace, bt_trace_get_name(trace)); |
| 239 | ret = -1; |
| 240 | goto end; |
| 241 | } |
| 242 | |
| 243 | memcpy(trace->uuid, uuid, BABELTRACE_UUID_LEN); |
| 244 | trace->uuid_set = BT_TRUE; |
| 245 | BT_LOGV("Set trace's UUID: addr=%p, name=\"%s\", " |
| 246 | "uuid=\"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\"", |
| 247 | trace, bt_trace_get_name(trace), |
| 248 | (unsigned int) uuid[0], |
| 249 | (unsigned int) uuid[1], |
| 250 | (unsigned int) uuid[2], |
| 251 | (unsigned int) uuid[3], |
| 252 | (unsigned int) uuid[4], |
| 253 | (unsigned int) uuid[5], |
| 254 | (unsigned int) uuid[6], |
| 255 | (unsigned int) uuid[7], |
| 256 | (unsigned int) uuid[8], |
| 257 | (unsigned int) uuid[9], |
| 258 | (unsigned int) uuid[10], |
| 259 | (unsigned int) uuid[11], |
| 260 | (unsigned int) uuid[12], |
| 261 | (unsigned int) uuid[13], |
| 262 | (unsigned int) uuid[14], |
| 263 | (unsigned int) uuid[15]); |
| 264 | |
| 265 | end: |
| 266 | return ret; |
| 267 | } |
| 268 | |
| 269 | void bt_trace_destroy(struct bt_object *obj) |
| 270 | { |
| 271 | struct bt_trace *trace; |
| 272 | |
| 273 | trace = container_of(obj, struct bt_trace, base); |
| 274 | |
| 275 | BT_LOGD("Destroying trace object: addr=%p, name=\"%s\"", |
| 276 | trace, bt_trace_get_name(trace)); |
| 277 | |
| 278 | /* |
| 279 | * Call remove listeners first so that everything else still |
| 280 | * exists in the trace. |
| 281 | */ |
| 282 | if (trace->is_static_listeners) { |
| 283 | size_t i; |
| 284 | |
| 285 | for (i = 0; i < trace->is_static_listeners->len; i++) { |
| 286 | struct bt_trace_is_static_listener_elem elem = |
| 287 | g_array_index(trace->is_static_listeners, |
| 288 | struct bt_trace_is_static_listener_elem, i); |
| 289 | |
| 290 | if (elem.removed) { |
| 291 | elem.removed(trace, elem.data); |
| 292 | } |
| 293 | } |
| 294 | |
| 295 | g_array_free(trace->is_static_listeners, TRUE); |
| 296 | } |
| 297 | |
| 298 | if (trace->listeners) { |
| 299 | g_ptr_array_free(trace->listeners, TRUE); |
| 300 | } |
| 301 | |
| 302 | if (trace->environment) { |
| 303 | BT_LOGD_STR("Destroying environment attributes."); |
| 304 | bt_attributes_destroy(trace->environment); |
| 305 | } |
| 306 | |
| 307 | if (trace->name) { |
| 308 | g_string_free(trace->name, TRUE); |
| 309 | } |
| 310 | |
| 311 | if (trace->clocks) { |
| 312 | BT_LOGD_STR("Putting clock classes."); |
| 313 | g_ptr_array_free(trace->clocks, TRUE); |
| 314 | } |
| 315 | |
| 316 | if (trace->streams) { |
| 317 | BT_LOGD_STR("Destroying streams."); |
| 318 | g_ptr_array_free(trace->streams, TRUE); |
| 319 | } |
| 320 | |
| 321 | if (trace->stream_classes) { |
| 322 | BT_LOGD_STR("Destroying stream classes."); |
| 323 | g_ptr_array_free(trace->stream_classes, TRUE); |
| 324 | } |
| 325 | |
| 326 | BT_LOGD_STR("Putting packet header field type."); |
| 327 | bt_put(trace->packet_header_type); |
| 328 | g_free(trace); |
| 329 | } |
| 330 | |
| 331 | int bt_trace_set_environment_field(struct bt_trace *trace, |
| 332 | const char *name, struct bt_value *value) |
| 333 | { |
| 334 | int ret = 0; |
| 335 | |
| 336 | if (!trace) { |
| 337 | BT_LOGW_STR("Invalid parameter: trace is NULL."); |
| 338 | ret = -1; |
| 339 | goto end; |
| 340 | } |
| 341 | |
| 342 | if (!name) { |
| 343 | BT_LOGW_STR("Invalid parameter: name is NULL."); |
| 344 | ret = -1; |
| 345 | goto end; |
| 346 | } |
| 347 | |
| 348 | if (!value) { |
| 349 | BT_LOGW_STR("Invalid parameter: value is NULL."); |
| 350 | ret = -1; |
| 351 | goto end; |
| 352 | } |
| 353 | |
| 354 | if (!bt_identifier_is_valid(name)) { |
| 355 | BT_LOGW("Invalid parameter: environment field's name is not a valid CTF identifier: " |
| 356 | "trace-addr=%p, trace-name=\"%s\", " |
| 357 | "env-name=\"%s\"", |
| 358 | trace, bt_trace_get_name(trace), name); |
| 359 | ret = -1; |
| 360 | goto end; |
| 361 | } |
| 362 | |
| 363 | if (!bt_value_is_integer(value) && !bt_value_is_string(value)) { |
| 364 | BT_LOGW("Invalid parameter: environment field's value is not an integer or string value: " |
| 365 | "trace-addr=%p, trace-name=\"%s\", " |
| 366 | "env-name=\"%s\", env-value-type=%s", |
| 367 | trace, bt_trace_get_name(trace), name, |
| 368 | bt_value_type_string(bt_value_get_type(value))); |
| 369 | ret = -1; |
| 370 | goto end; |
| 371 | } |
| 372 | |
| 373 | if (trace->is_static) { |
| 374 | BT_LOGW("Invalid parameter: trace is static: " |
| 375 | "addr=%p, name=\"%s\"", |
| 376 | trace, bt_trace_get_name(trace)); |
| 377 | ret = -1; |
| 378 | goto end; |
| 379 | } |
| 380 | |
| 381 | if (trace->frozen) { |
| 382 | /* |
| 383 | * New environment fields may be added to a frozen trace, |
| 384 | * but existing fields may not be changed. |
| 385 | * |
| 386 | * The object passed is frozen like all other attributes. |
| 387 | */ |
| 388 | struct bt_value *attribute = |
| 389 | bt_attributes_get_field_value_by_name( |
| 390 | trace->environment, name); |
| 391 | |
| 392 | if (attribute) { |
| 393 | BT_LOGW("Invalid parameter: trace is frozen and environment field already exists with this name: " |
| 394 | "trace-addr=%p, trace-name=\"%s\", " |
| 395 | "env-name=\"%s\"", |
| 396 | trace, bt_trace_get_name(trace), name); |
| 397 | BT_PUT(attribute); |
| 398 | ret = -1; |
| 399 | goto end; |
| 400 | } |
| 401 | |
| 402 | bt_value_freeze(value); |
| 403 | } |
| 404 | |
| 405 | ret = bt_attributes_set_field_value(trace->environment, name, |
| 406 | value); |
| 407 | if (ret) { |
| 408 | BT_LOGE("Cannot set environment field's value: " |
| 409 | "trace-addr=%p, trace-name=\"%s\", " |
| 410 | "env-name=\"%s\"", |
| 411 | trace, bt_trace_get_name(trace), name); |
| 412 | } else { |
| 413 | BT_LOGV("Set environment field's value: " |
| 414 | "trace-addr=%p, trace-name=\"%s\", " |
| 415 | "env-name=\"%s\", value-addr=%p", |
| 416 | trace, bt_trace_get_name(trace), name, value); |
| 417 | } |
| 418 | |
| 419 | end: |
| 420 | return ret; |
| 421 | } |
| 422 | |
| 423 | int bt_trace_set_environment_field_string(struct bt_trace *trace, |
| 424 | const char *name, const char *value) |
| 425 | { |
| 426 | int ret = 0; |
| 427 | struct bt_value *env_value_string_obj = NULL; |
| 428 | |
| 429 | if (!value) { |
| 430 | BT_LOGW_STR("Invalid parameter: value is NULL."); |
| 431 | ret = -1; |
| 432 | goto end; |
| 433 | } |
| 434 | |
| 435 | env_value_string_obj = bt_value_string_create_init(value); |
| 436 | if (!env_value_string_obj) { |
| 437 | BT_LOGE_STR("Cannot create string value object."); |
| 438 | ret = -1; |
| 439 | goto end; |
| 440 | } |
| 441 | |
| 442 | /* bt_trace_set_environment_field() logs errors */ |
| 443 | ret = bt_trace_set_environment_field(trace, name, |
| 444 | env_value_string_obj); |
| 445 | |
| 446 | end: |
| 447 | bt_put(env_value_string_obj); |
| 448 | return ret; |
| 449 | } |
| 450 | |
| 451 | int bt_trace_set_environment_field_integer(struct bt_trace *trace, |
| 452 | const char *name, int64_t value) |
| 453 | { |
| 454 | int ret = 0; |
| 455 | struct bt_value *env_value_integer_obj = NULL; |
| 456 | |
| 457 | env_value_integer_obj = bt_value_integer_create_init(value); |
| 458 | if (!env_value_integer_obj) { |
| 459 | BT_LOGE_STR("Cannot create integer value object."); |
| 460 | ret = -1; |
| 461 | goto end; |
| 462 | } |
| 463 | |
| 464 | /* bt_trace_set_environment_field() logs errors */ |
| 465 | ret = bt_trace_set_environment_field(trace, name, |
| 466 | env_value_integer_obj); |
| 467 | |
| 468 | end: |
| 469 | bt_put(env_value_integer_obj); |
| 470 | return ret; |
| 471 | } |
| 472 | |
| 473 | int64_t bt_trace_get_environment_field_count(struct bt_trace *trace) |
| 474 | { |
| 475 | int64_t ret = 0; |
| 476 | |
| 477 | if (!trace) { |
| 478 | BT_LOGW_STR("Invalid parameter: trace is NULL."); |
| 479 | ret = (int64_t) -1; |
| 480 | goto end; |
| 481 | } |
| 482 | |
| 483 | ret = bt_attributes_get_count(trace->environment); |
| 484 | assert(ret >= 0); |
| 485 | |
| 486 | end: |
| 487 | return ret; |
| 488 | } |
| 489 | |
| 490 | const char * |
| 491 | bt_trace_get_environment_field_name_by_index(struct bt_trace *trace, |
| 492 | uint64_t index) |
| 493 | { |
| 494 | const char *ret = NULL; |
| 495 | |
| 496 | if (!trace) { |
| 497 | BT_LOGW_STR("Invalid parameter: trace is NULL."); |
| 498 | goto end; |
| 499 | } |
| 500 | |
| 501 | ret = bt_attributes_get_field_name(trace->environment, index); |
| 502 | |
| 503 | end: |
| 504 | return ret; |
| 505 | } |
| 506 | |
| 507 | struct bt_value *bt_trace_get_environment_field_value_by_index( |
| 508 | struct bt_trace *trace, uint64_t index) |
| 509 | { |
| 510 | struct bt_value *ret = NULL; |
| 511 | |
| 512 | if (!trace) { |
| 513 | BT_LOGW_STR("Invalid parameter: trace is NULL."); |
| 514 | goto end; |
| 515 | } |
| 516 | |
| 517 | ret = bt_attributes_get_field_value(trace->environment, index); |
| 518 | |
| 519 | end: |
| 520 | return ret; |
| 521 | } |
| 522 | |
| 523 | struct bt_value *bt_trace_get_environment_field_value_by_name( |
| 524 | struct bt_trace *trace, const char *name) |
| 525 | { |
| 526 | struct bt_value *ret = NULL; |
| 527 | |
| 528 | if (!trace) { |
| 529 | BT_LOGW_STR("Invalid parameter: trace is NULL."); |
| 530 | goto end; |
| 531 | } |
| 532 | |
| 533 | if (!name) { |
| 534 | BT_LOGW_STR("Invalid parameter: name is NULL."); |
| 535 | goto end; |
| 536 | } |
| 537 | |
| 538 | ret = bt_attributes_get_field_value_by_name(trace->environment, |
| 539 | name); |
| 540 | |
| 541 | end: |
| 542 | return ret; |
| 543 | } |
| 544 | |
| 545 | int bt_trace_add_clock_class(struct bt_trace *trace, |
| 546 | struct bt_clock_class *clock_class) |
| 547 | { |
| 548 | int ret = 0; |
| 549 | |
| 550 | if (!trace) { |
| 551 | BT_LOGW_STR("Invalid parameter: trace is NULL."); |
| 552 | ret = -1; |
| 553 | goto end; |
| 554 | } |
| 555 | |
| 556 | if (trace->is_static) { |
| 557 | BT_LOGW("Invalid parameter: trace is static: " |
| 558 | "addr=%p, name=\"%s\"", |
| 559 | trace, bt_trace_get_name(trace)); |
| 560 | ret = -1; |
| 561 | goto end; |
| 562 | } |
| 563 | |
| 564 | if (!bt_clock_class_is_valid(clock_class)) { |
| 565 | BT_LOGW("Invalid parameter: clock class is invalid: " |
| 566 | "trace-addr=%p, trace-name=\"%s\", " |
| 567 | "clock-class-addr=%p, clock-class-name=\"%s\"", |
| 568 | trace, bt_trace_get_name(trace), |
| 569 | clock_class, bt_clock_class_get_name(clock_class)); |
| 570 | ret = -1; |
| 571 | goto end; |
| 572 | } |
| 573 | |
| 574 | /* Check for duplicate clock classes */ |
| 575 | if (bt_trace_has_clock_class(trace, clock_class)) { |
| 576 | BT_LOGW("Invalid parameter: clock class already exists in trace: " |
| 577 | "trace-addr=%p, trace-name=\"%s\", " |
| 578 | "clock-class-addr=%p, clock-class-name=\"%s\"", |
| 579 | trace, bt_trace_get_name(trace), |
| 580 | clock_class, bt_clock_class_get_name(clock_class)); |
| 581 | ret = -1; |
| 582 | goto end; |
| 583 | } |
| 584 | |
| 585 | bt_get(clock_class); |
| 586 | g_ptr_array_add(trace->clocks, clock_class); |
| 587 | |
| 588 | if (trace->frozen) { |
| 589 | BT_LOGV_STR("Freezing added clock class because trace is frozen."); |
| 590 | bt_clock_class_freeze(clock_class); |
| 591 | } |
| 592 | |
| 593 | BT_LOGV("Added clock class to trace: " |
| 594 | "trace-addr=%p, trace-name=\"%s\", " |
| 595 | "clock-class-addr=%p, clock-class-name=\"%s\"", |
| 596 | trace, bt_trace_get_name(trace), |
| 597 | clock_class, bt_clock_class_get_name(clock_class)); |
| 598 | |
| 599 | end: |
| 600 | return ret; |
| 601 | } |
| 602 | |
| 603 | int64_t bt_trace_get_clock_class_count(struct bt_trace *trace) |
| 604 | { |
| 605 | int64_t ret = (int64_t) -1; |
| 606 | |
| 607 | if (!trace) { |
| 608 | BT_LOGW_STR("Invalid parameter: trace is NULL."); |
| 609 | goto end; |
| 610 | } |
| 611 | |
| 612 | ret = trace->clocks->len; |
| 613 | end: |
| 614 | return ret; |
| 615 | } |
| 616 | |
| 617 | struct bt_clock_class *bt_trace_get_clock_class_by_index( |
| 618 | struct bt_trace *trace, uint64_t index) |
| 619 | { |
| 620 | struct bt_clock_class *clock_class = NULL; |
| 621 | |
| 622 | if (!trace) { |
| 623 | BT_LOGW_STR("Invalid parameter: trace is NULL."); |
| 624 | goto end; |
| 625 | } |
| 626 | |
| 627 | if (index >= trace->clocks->len) { |
| 628 | BT_LOGW("Invalid parameter: index is out of bounds: " |
| 629 | "addr=%p, name=\"%s\", " |
| 630 | "index=%" PRIu64 ", count=%u", |
| 631 | trace, bt_trace_get_name(trace), |
| 632 | index, trace->clocks->len); |
| 633 | goto end; |
| 634 | } |
| 635 | |
| 636 | clock_class = g_ptr_array_index(trace->clocks, index); |
| 637 | bt_get(clock_class); |
| 638 | end: |
| 639 | return clock_class; |
| 640 | } |
| 641 | |
| 642 | static |
| 643 | bool packet_header_field_type_is_valid(struct bt_trace *trace, |
| 644 | struct bt_field_type *packet_header_type) |
| 645 | { |
| 646 | int ret; |
| 647 | bool is_valid = true; |
| 648 | struct bt_field_type *field_type = NULL; |
| 649 | |
| 650 | if (!packet_header_type) { |
| 651 | /* |
| 652 | * No packet header field type: trace must have only |
| 653 | * one stream. At this point the stream class being |
| 654 | * added is not part of the trace yet, so we validate |
| 655 | * that the trace contains no stream classes yet. |
| 656 | */ |
| 657 | if (trace->stream_classes->len >= 1) { |
| 658 | BT_LOGW_STR("Invalid packet header field type: " |
| 659 | "packet header field type does not exist but there's more than one stream class in the trace."); |
| 660 | goto invalid; |
| 661 | } |
| 662 | |
| 663 | /* No packet header field type: valid at this point */ |
| 664 | goto end; |
| 665 | } |
| 666 | |
| 667 | /* Packet header field type, if it exists, must be a structure */ |
| 668 | if (!bt_field_type_is_structure(packet_header_type)) { |
| 669 | BT_LOGW("Invalid packet header field type: must be a structure field type if it exists: " |
| 670 | "ft-addr=%p, ft-id=%s", |
| 671 | packet_header_type, |
| 672 | bt_field_type_id_string(packet_header_type->id)); |
| 673 | goto invalid; |
| 674 | } |
| 675 | |
| 676 | /* |
| 677 | * If there's a `magic` field, it must be a 32-bit unsigned |
| 678 | * integer field type. Also it must be the first field of the |
| 679 | * packet header field type. |
| 680 | */ |
| 681 | field_type = bt_field_type_structure_get_field_type_by_name( |
| 682 | packet_header_type, "magic"); |
| 683 | if (field_type) { |
| 684 | const char *field_name; |
| 685 | |
| 686 | if (!bt_field_type_is_integer(field_type)) { |
| 687 | BT_LOGW("Invalid packet header field type: `magic` field must be an integer field type: " |
| 688 | "magic-ft-addr=%p, magic-ft-id=%s", |
| 689 | field_type, |
| 690 | bt_field_type_id_string(field_type->id)); |
| 691 | goto invalid; |
| 692 | } |
| 693 | |
| 694 | if (bt_field_type_integer_is_signed(field_type)) { |
| 695 | BT_LOGW("Invalid packet header field type: `magic` field must be an unsigned integer field type: " |
| 696 | "magic-ft-addr=%p", field_type); |
| 697 | goto invalid; |
| 698 | } |
| 699 | |
| 700 | if (bt_field_type_integer_get_size(field_type) != 32) { |
| 701 | BT_LOGW("Invalid packet header field type: `magic` field must be a 32-bit unsigned integer field type: " |
| 702 | "magic-ft-addr=%p, magic-ft-size=%u", |
| 703 | field_type, |
| 704 | bt_field_type_integer_get_size(field_type)); |
| 705 | goto invalid; |
| 706 | } |
| 707 | |
| 708 | ret = bt_field_type_structure_get_field_by_index( |
| 709 | packet_header_type, &field_name, NULL, 0); |
| 710 | assert(ret == 0); |
| 711 | |
| 712 | if (strcmp(field_name, "magic") != 0) { |
| 713 | BT_LOGW("Invalid packet header field type: `magic` field must be the first field: " |
| 714 | "magic-ft-addr=%p, first-field-name=\"%s\"", |
| 715 | field_type, field_name); |
| 716 | goto invalid; |
| 717 | } |
| 718 | |
| 719 | BT_PUT(field_type); |
| 720 | } |
| 721 | |
| 722 | /* |
| 723 | * If there's a `uuid` field, it must be an array field type of |
| 724 | * length 16 with an 8-bit unsigned integer element field type. |
| 725 | */ |
| 726 | field_type = bt_field_type_structure_get_field_type_by_name( |
| 727 | packet_header_type, "uuid"); |
| 728 | if (field_type) { |
| 729 | struct bt_field_type *elem_ft; |
| 730 | |
| 731 | if (!bt_field_type_is_array(field_type)) { |
| 732 | BT_LOGW("Invalid packet header field type: `uuid` field must be an array field type: " |
| 733 | "uuid-ft-addr=%p, uuid-ft-id=%s", |
| 734 | field_type, |
| 735 | bt_field_type_id_string(field_type->id)); |
| 736 | goto invalid; |
| 737 | } |
| 738 | |
| 739 | if (bt_field_type_array_get_length(field_type) != 16) { |
| 740 | BT_LOGW("Invalid packet header field type: `uuid` array field type's length must be 16: " |
| 741 | "uuid-ft-addr=%p, uuid-ft-length=%" PRId64, |
| 742 | field_type, |
| 743 | bt_field_type_array_get_length(field_type)); |
| 744 | goto invalid; |
| 745 | } |
| 746 | |
| 747 | elem_ft = bt_field_type_array_get_element_type(field_type); |
| 748 | assert(elem_ft); |
| 749 | |
| 750 | if (!bt_field_type_is_integer(elem_ft)) { |
| 751 | BT_LOGW("Invalid packet header field type: `uuid` field's element field type must be an integer field type: " |
| 752 | "elem-ft-addr=%p, elem-ft-id=%s", |
| 753 | elem_ft, |
| 754 | bt_field_type_id_string(elem_ft->id)); |
| 755 | bt_put(elem_ft); |
| 756 | goto invalid; |
| 757 | } |
| 758 | |
| 759 | if (bt_field_type_integer_is_signed(elem_ft)) { |
| 760 | BT_LOGW("Invalid packet header field type: `uuid` field's element field type must be an unsigned integer field type: " |
| 761 | "elem-ft-addr=%p", elem_ft); |
| 762 | bt_put(elem_ft); |
| 763 | goto invalid; |
| 764 | } |
| 765 | |
| 766 | if (bt_field_type_integer_get_size(elem_ft) != 8) { |
| 767 | BT_LOGW("Invalid packet header field type: `uuid` field's element field type must be an 8-bit unsigned integer field type: " |
| 768 | "elem-ft-addr=%p, elem-ft-size=%u", |
| 769 | elem_ft, |
| 770 | bt_field_type_integer_get_size(elem_ft)); |
| 771 | bt_put(elem_ft); |
| 772 | goto invalid; |
| 773 | } |
| 774 | |
| 775 | bt_put(elem_ft); |
| 776 | BT_PUT(field_type); |
| 777 | } |
| 778 | |
| 779 | /* |
| 780 | * The `stream_id` field must exist if there's more than one |
| 781 | * stream classes in the trace. |
| 782 | */ |
| 783 | field_type = bt_field_type_structure_get_field_type_by_name( |
| 784 | packet_header_type, "stream_id"); |
| 785 | |
| 786 | if (!field_type && trace->stream_classes->len >= 1) { |
| 787 | BT_LOGW_STR("Invalid packet header field type: " |
| 788 | "`stream_id` field does not exist but there's more than one stream class in the trace."); |
| 789 | goto invalid; |
| 790 | } |
| 791 | |
| 792 | /* |
| 793 | * If there's a `stream_id` field, it must be an unsigned |
| 794 | * integer field type. |
| 795 | */ |
| 796 | if (field_type) { |
| 797 | if (!bt_field_type_is_integer(field_type)) { |
| 798 | BT_LOGW("Invalid packet header field type: `stream_id` field must be an integer field type: " |
| 799 | "stream-id-ft-addr=%p, stream-id-ft-id=%s", |
| 800 | field_type, |
| 801 | bt_field_type_id_string(field_type->id)); |
| 802 | goto invalid; |
| 803 | } |
| 804 | |
| 805 | if (bt_field_type_integer_is_signed(field_type)) { |
| 806 | BT_LOGW("Invalid packet header field type: `stream_id` field must be an unsigned integer field type: " |
| 807 | "stream-id-ft-addr=%p", field_type); |
| 808 | goto invalid; |
| 809 | } |
| 810 | |
| 811 | BT_PUT(field_type); |
| 812 | } |
| 813 | |
| 814 | /* |
| 815 | * If there's a `packet_seq_num` field, it must be an unsigned |
| 816 | * integer field type. |
| 817 | */ |
| 818 | field_type = bt_field_type_structure_get_field_type_by_name( |
| 819 | packet_header_type, "packet_seq_num"); |
| 820 | if (field_type) { |
| 821 | if (!bt_field_type_is_integer(field_type)) { |
| 822 | BT_LOGW("Invalid packet header field type: `packet_seq_num` field must be an integer field type: " |
| 823 | "stream-id-ft-addr=%p, packet-seq-num-ft-id=%s", |
| 824 | field_type, |
| 825 | bt_field_type_id_string(field_type->id)); |
| 826 | goto invalid; |
| 827 | } |
| 828 | |
| 829 | if (bt_field_type_integer_is_signed(field_type)) { |
| 830 | BT_LOGW("Invalid packet header field type: `packet_seq_num` field must be an unsigned integer field type: " |
| 831 | "packet-seq-num-ft-addr=%p", field_type); |
| 832 | goto invalid; |
| 833 | } |
| 834 | |
| 835 | BT_PUT(field_type); |
| 836 | } |
| 837 | |
| 838 | goto end; |
| 839 | |
| 840 | invalid: |
| 841 | is_valid = false; |
| 842 | |
| 843 | end: |
| 844 | bt_put(field_type); |
| 845 | return is_valid; |
| 846 | } |
| 847 | |
| 848 | static |
| 849 | bool packet_context_field_type_is_valid(struct bt_trace *trace, |
| 850 | struct bt_stream_class *stream_class, |
| 851 | struct bt_field_type *packet_context_type) |
| 852 | { |
| 853 | bool is_valid = true; |
| 854 | struct bt_field_type *field_type = NULL; |
| 855 | |
| 856 | if (!packet_context_type) { |
| 857 | /* No packet context field type: valid at this point */ |
| 858 | goto end; |
| 859 | } |
| 860 | |
| 861 | /* Packet context field type, if it exists, must be a structure */ |
| 862 | if (!bt_field_type_is_structure(packet_context_type)) { |
| 863 | BT_LOGW("Invalid packet context field type: must be a structure field type if it exists: " |
| 864 | "ft-addr=%p, ft-id=%s", |
| 865 | packet_context_type, |
| 866 | bt_field_type_id_string(packet_context_type->id)); |
| 867 | goto invalid; |
| 868 | } |
| 869 | |
| 870 | /* |
| 871 | * If there's a `packet_size` field, it must be an unsigned |
| 872 | * integer field type. |
| 873 | */ |
| 874 | field_type = bt_field_type_structure_get_field_type_by_name( |
| 875 | packet_context_type, "packet_size"); |
| 876 | if (field_type) { |
| 877 | if (!bt_field_type_is_integer(field_type)) { |
| 878 | BT_LOGW("Invalid packet context field type: `packet_size` field must be an integer field type: " |
| 879 | "packet-size-ft-addr=%p, packet-size-ft-id=%s", |
| 880 | field_type, |
| 881 | bt_field_type_id_string(field_type->id)); |
| 882 | goto invalid; |
| 883 | } |
| 884 | |
| 885 | if (bt_field_type_integer_is_signed(field_type)) { |
| 886 | BT_LOGW("Invalid packet context field type: `packet_size` field must be an unsigned integer field type: " |
| 887 | "packet-size-ft-addr=%p", field_type); |
| 888 | goto invalid; |
| 889 | } |
| 890 | |
| 891 | BT_PUT(field_type); |
| 892 | } |
| 893 | |
| 894 | /* |
| 895 | * If there's a `content_size` field, it must be an unsigned |
| 896 | * integer field type. |
| 897 | */ |
| 898 | field_type = bt_field_type_structure_get_field_type_by_name( |
| 899 | packet_context_type, "content_size"); |
| 900 | if (field_type) { |
| 901 | if (!bt_field_type_is_integer(field_type)) { |
| 902 | BT_LOGW("Invalid packet context field type: `content_size` field must be an integer field type: " |
| 903 | "content-size-ft-addr=%p, content-size-ft-id=%s", |
| 904 | field_type, |
| 905 | bt_field_type_id_string(field_type->id)); |
| 906 | goto invalid; |
| 907 | } |
| 908 | |
| 909 | if (bt_field_type_integer_is_signed(field_type)) { |
| 910 | BT_LOGW("Invalid packet context field type: `content_size` field must be an unsigned integer field type: " |
| 911 | "content-size-ft-addr=%p", field_type); |
| 912 | goto invalid; |
| 913 | } |
| 914 | |
| 915 | BT_PUT(field_type); |
| 916 | } |
| 917 | |
| 918 | /* |
| 919 | * If there's a `events_discarded` field, it must be an unsigned |
| 920 | * integer field type. |
| 921 | */ |
| 922 | field_type = bt_field_type_structure_get_field_type_by_name( |
| 923 | packet_context_type, "events_discarded"); |
| 924 | if (field_type) { |
| 925 | if (!bt_field_type_is_integer(field_type)) { |
| 926 | BT_LOGW("Invalid packet context field type: `events_discarded` field must be an integer field type: " |
| 927 | "events-discarded-ft-addr=%p, events-discarded-ft-id=%s", |
| 928 | field_type, |
| 929 | bt_field_type_id_string(field_type->id)); |
| 930 | goto invalid; |
| 931 | } |
| 932 | |
| 933 | if (bt_field_type_integer_is_signed(field_type)) { |
| 934 | BT_LOGW("Invalid packet context field type: `events_discarded` field must be an unsigned integer field type: " |
| 935 | "events-discarded-ft-addr=%p", field_type); |
| 936 | goto invalid; |
| 937 | } |
| 938 | |
| 939 | BT_PUT(field_type); |
| 940 | } |
| 941 | |
| 942 | /* |
| 943 | * If there's a `timestamp_begin` field, it must be an unsigned |
| 944 | * integer field type. Also, if the trace is not a CTF writer's |
| 945 | * trace, then we cannot automatically set the mapped clock |
| 946 | * class of this field, so it must have a mapped clock class. |
| 947 | */ |
| 948 | field_type = bt_field_type_structure_get_field_type_by_name( |
| 949 | packet_context_type, "timestamp_begin"); |
| 950 | if (field_type) { |
| 951 | if (!bt_field_type_is_integer(field_type)) { |
| 952 | BT_LOGW("Invalid packet context field type: `timestamp_begin` field must be an integer field type: " |
| 953 | "timestamp-begin-ft-addr=%p, timestamp-begin-ft-id=%s", |
| 954 | field_type, |
| 955 | bt_field_type_id_string(field_type->id)); |
| 956 | goto invalid; |
| 957 | } |
| 958 | |
| 959 | if (bt_field_type_integer_is_signed(field_type)) { |
| 960 | BT_LOGW("Invalid packet context field type: `timestamp_begin` field must be an unsigned integer field type: " |
| 961 | "timestamp-begin-ft-addr=%p", field_type); |
| 962 | goto invalid; |
| 963 | } |
| 964 | |
| 965 | if (!trace->is_created_by_writer) { |
| 966 | struct bt_clock_class *clock_class = |
| 967 | bt_field_type_integer_get_mapped_clock_class( |
| 968 | field_type); |
| 969 | |
| 970 | bt_put(clock_class); |
| 971 | if (!clock_class) { |
| 972 | BT_LOGW("Invalid packet context field type: `timestamp_begin` field must be mapped to a clock class: " |
| 973 | "timestamp-begin-ft-addr=%p", field_type); |
| 974 | goto invalid; |
| 975 | } |
| 976 | } |
| 977 | |
| 978 | BT_PUT(field_type); |
| 979 | } |
| 980 | |
| 981 | /* |
| 982 | * If there's a `timestamp_end` field, it must be an unsigned |
| 983 | * integer field type. Also, if the trace is not a CTF writer's |
| 984 | * trace, then we cannot automatically set the mapped clock |
| 985 | * class of this field, so it must have a mapped clock class. |
| 986 | */ |
| 987 | field_type = bt_field_type_structure_get_field_type_by_name( |
| 988 | packet_context_type, "timestamp_end"); |
| 989 | if (field_type) { |
| 990 | if (!bt_field_type_is_integer(field_type)) { |
| 991 | BT_LOGW("Invalid packet context field type: `timestamp_end` field must be an integer field type: " |
| 992 | "timestamp-end-ft-addr=%p, timestamp-end-ft-id=%s", |
| 993 | field_type, |
| 994 | bt_field_type_id_string(field_type->id)); |
| 995 | goto invalid; |
| 996 | } |
| 997 | |
| 998 | if (bt_field_type_integer_is_signed(field_type)) { |
| 999 | BT_LOGW("Invalid packet context field type: `timestamp_end` field must be an unsigned integer field type: " |
| 1000 | "timestamp-end-ft-addr=%p", field_type); |
| 1001 | goto invalid; |
| 1002 | } |
| 1003 | |
| 1004 | if (!trace->is_created_by_writer) { |
| 1005 | struct bt_clock_class *clock_class = |
| 1006 | bt_field_type_integer_get_mapped_clock_class( |
| 1007 | field_type); |
| 1008 | |
| 1009 | bt_put(clock_class); |
| 1010 | if (!clock_class) { |
| 1011 | BT_LOGW("Invalid packet context field type: `timestamp_end` field must be mapped to a clock class: " |
| 1012 | "timestamp-end-ft-addr=%p", field_type); |
| 1013 | goto invalid; |
| 1014 | } |
| 1015 | } |
| 1016 | |
| 1017 | BT_PUT(field_type); |
| 1018 | } |
| 1019 | |
| 1020 | goto end; |
| 1021 | |
| 1022 | invalid: |
| 1023 | is_valid = false; |
| 1024 | |
| 1025 | end: |
| 1026 | bt_put(field_type); |
| 1027 | return is_valid; |
| 1028 | } |
| 1029 | |
| 1030 | static |
| 1031 | bool event_header_field_type_is_valid(struct bt_trace *trace, |
| 1032 | struct bt_stream_class *stream_class, |
| 1033 | struct bt_field_type *event_header_type) |
| 1034 | { |
| 1035 | bool is_valid = true; |
| 1036 | struct bt_field_type *field_type = NULL; |
| 1037 | |
| 1038 | /* |
| 1039 | * We do not validate that the `timestamp` field exists here |
| 1040 | * because CTF does not require this exact name to be mapped to |
| 1041 | * a clock class. |
| 1042 | */ |
| 1043 | |
| 1044 | if (!event_header_type) { |
| 1045 | /* |
| 1046 | * No event header field type: stream class must have |
| 1047 | * only one event class. |
| 1048 | */ |
| 1049 | if (bt_stream_class_get_event_class_count(stream_class) > 1) { |
| 1050 | BT_LOGW_STR("Invalid event header field type: " |
| 1051 | "event header field type does not exist but there's more than one event class in the stream class."); |
| 1052 | goto invalid; |
| 1053 | } |
| 1054 | |
| 1055 | /* No event header field type: valid at this point */ |
| 1056 | goto end; |
| 1057 | } |
| 1058 | |
| 1059 | /* Event header field type, if it exists, must be a structure */ |
| 1060 | if (!bt_field_type_is_structure(event_header_type)) { |
| 1061 | BT_LOGW("Invalid event header field type: must be a structure field type if it exists: " |
| 1062 | "ft-addr=%p, ft-id=%s", |
| 1063 | event_header_type, |
| 1064 | bt_field_type_id_string(event_header_type->id)); |
| 1065 | goto invalid; |
| 1066 | } |
| 1067 | |
| 1068 | /* |
| 1069 | * If there's an `id` field, it must be an unsigned integer |
| 1070 | * field type or an enumeration field type with an unsigned |
| 1071 | * integer container field type. |
| 1072 | */ |
| 1073 | field_type = bt_field_type_structure_get_field_type_by_name( |
| 1074 | event_header_type, "id"); |
| 1075 | if (field_type) { |
| 1076 | struct bt_field_type *int_ft; |
| 1077 | |
| 1078 | if (bt_field_type_is_integer(field_type)) { |
| 1079 | int_ft = bt_get(field_type); |
| 1080 | } else if (bt_field_type_is_enumeration(field_type)) { |
| 1081 | int_ft = bt_field_type_enumeration_get_container_type( |
| 1082 | field_type); |
| 1083 | } else { |
| 1084 | BT_LOGW("Invalid event header field type: `id` field must be an integer or enumeration field type: " |
| 1085 | "id-ft-addr=%p, id-ft-id=%s", |
| 1086 | field_type, |
| 1087 | bt_field_type_id_string(field_type->id)); |
| 1088 | goto invalid; |
| 1089 | } |
| 1090 | |
| 1091 | assert(int_ft); |
| 1092 | if (bt_field_type_integer_is_signed(int_ft)) { |
| 1093 | BT_LOGW("Invalid event header field type: `id` field must be an unsigned integer or enumeration field type: " |
| 1094 | "id-ft-addr=%p", int_ft); |
| 1095 | goto invalid; |
| 1096 | } |
| 1097 | |
| 1098 | bt_put(int_ft); |
| 1099 | BT_PUT(field_type); |
| 1100 | } |
| 1101 | |
| 1102 | goto end; |
| 1103 | |
| 1104 | invalid: |
| 1105 | is_valid = false; |
| 1106 | |
| 1107 | end: |
| 1108 | bt_put(field_type); |
| 1109 | return is_valid; |
| 1110 | } |
| 1111 | |
| 1112 | static |
| 1113 | int check_packet_header_type_has_no_clock_class(struct bt_trace *trace) |
| 1114 | { |
| 1115 | int ret = 0; |
| 1116 | |
| 1117 | if (trace->packet_header_type) { |
| 1118 | struct bt_clock_class *clock_class = NULL; |
| 1119 | |
| 1120 | ret = bt_validate_single_clock_class(trace->packet_header_type, |
| 1121 | &clock_class); |
| 1122 | bt_put(clock_class); |
| 1123 | if (ret || clock_class) { |
| 1124 | BT_LOGW("Trace's packet header field type cannot " |
| 1125 | "contain a field type which is mapped to " |
| 1126 | "a clock class: " |
| 1127 | "trace-addr=%p, trace-name=\"%s\", " |
| 1128 | "clock-class-name=\"%s\"", |
| 1129 | trace, bt_trace_get_name(trace), |
| 1130 | clock_class ? |
| 1131 | bt_clock_class_get_name(clock_class) : |
| 1132 | NULL); |
| 1133 | ret = -1; |
| 1134 | } |
| 1135 | } |
| 1136 | |
| 1137 | return ret; |
| 1138 | } |
| 1139 | |
| 1140 | int bt_trace_add_stream_class(struct bt_trace *trace, |
| 1141 | struct bt_stream_class *stream_class) |
| 1142 | { |
| 1143 | int ret; |
| 1144 | int64_t i; |
| 1145 | int64_t stream_id; |
| 1146 | struct bt_validation_output trace_sc_validation_output = { 0 }; |
| 1147 | struct bt_validation_output *ec_validation_outputs = NULL; |
| 1148 | const enum bt_validation_flag trace_sc_validation_flags = |
| 1149 | BT_VALIDATION_FLAG_TRACE | |
| 1150 | BT_VALIDATION_FLAG_STREAM; |
| 1151 | const enum bt_validation_flag ec_validation_flags = |
| 1152 | BT_VALIDATION_FLAG_EVENT; |
| 1153 | struct bt_field_type *packet_header_type = NULL; |
| 1154 | struct bt_field_type *packet_context_type = NULL; |
| 1155 | struct bt_field_type *event_header_type = NULL; |
| 1156 | struct bt_field_type *stream_event_ctx_type = NULL; |
| 1157 | int64_t event_class_count; |
| 1158 | struct bt_trace *current_parent_trace = NULL; |
| 1159 | struct bt_clock_class *expected_clock_class = NULL; |
| 1160 | |
| 1161 | if (!trace) { |
| 1162 | BT_LOGW_STR("Invalid parameter: trace is NULL."); |
| 1163 | ret = -1; |
| 1164 | goto end; |
| 1165 | } |
| 1166 | |
| 1167 | if (!stream_class) { |
| 1168 | BT_LOGW_STR("Invalid parameter: stream class is NULL."); |
| 1169 | ret = -1; |
| 1170 | goto end; |
| 1171 | } |
| 1172 | |
| 1173 | if (trace->is_static) { |
| 1174 | BT_LOGW_STR("Invalid parameter: trace is static."); |
| 1175 | ret = -1; |
| 1176 | goto end; |
| 1177 | } |
| 1178 | |
| 1179 | BT_LOGD("Adding stream class to trace: " |
| 1180 | "trace-addr=%p, trace-name=\"%s\", " |
| 1181 | "stream-class-addr=%p, stream-class-name=\"%s\", " |
| 1182 | "stream-class-id=%" PRId64, |
| 1183 | trace, bt_trace_get_name(trace), |
| 1184 | stream_class, bt_stream_class_get_name(stream_class), |
| 1185 | bt_stream_class_get_id(stream_class)); |
| 1186 | |
| 1187 | current_parent_trace = bt_stream_class_get_trace(stream_class); |
| 1188 | if (current_parent_trace) { |
| 1189 | /* Stream class is already associated to a trace, abort. */ |
| 1190 | BT_LOGW("Invalid parameter: stream class is already part of a trace: " |
| 1191 | "stream-class-trace-addr=%p, " |
| 1192 | "stream-class-trace-name=\"%s\"", |
| 1193 | current_parent_trace, |
| 1194 | bt_trace_get_name(current_parent_trace)); |
| 1195 | ret = -1; |
| 1196 | goto end; |
| 1197 | } |
| 1198 | |
| 1199 | event_class_count = |
| 1200 | bt_stream_class_get_event_class_count(stream_class); |
| 1201 | assert(event_class_count >= 0); |
| 1202 | |
| 1203 | if (stream_class->clock) { |
| 1204 | struct bt_clock_class *stream_clock_class = |
| 1205 | stream_class->clock->clock_class; |
| 1206 | |
| 1207 | if (trace->is_created_by_writer) { |
| 1208 | /* |
| 1209 | * Make sure this clock was also added to the |
| 1210 | * trace (potentially through its CTF writer |
| 1211 | * owner). |
| 1212 | */ |
| 1213 | size_t i; |
| 1214 | |
| 1215 | for (i = 0; i < trace->clocks->len; i++) { |
| 1216 | if (trace->clocks->pdata[i] == |
| 1217 | stream_clock_class) { |
| 1218 | /* Found! */ |
| 1219 | break; |
| 1220 | } |
| 1221 | } |
| 1222 | |
| 1223 | if (i == trace->clocks->len) { |
| 1224 | /* Not found */ |
| 1225 | BT_LOGW("Stream class's clock's class is not part of the trace: " |
| 1226 | "clock-class-addr=%p, clock-class-name=\"%s\"", |
| 1227 | stream_clock_class, |
| 1228 | bt_clock_class_get_name(stream_clock_class)); |
| 1229 | ret = -1; |
| 1230 | goto end; |
| 1231 | } |
| 1232 | } else { |
| 1233 | /* |
| 1234 | * This trace was NOT created by a CTF writer, |
| 1235 | * thus do not allow the stream class to add to |
| 1236 | * have a clock at all. Those are two |
| 1237 | * independent APIs (non-writer and writer |
| 1238 | * APIs), and isolating them simplifies things. |
| 1239 | */ |
| 1240 | BT_LOGW("Cannot add stream class with a clock to a trace which was not created by a CTF writer object: " |
| 1241 | "clock-class-addr=%p, clock-class-name=\"%s\"", |
| 1242 | stream_clock_class, |
| 1243 | bt_clock_class_get_name(stream_clock_class)); |
| 1244 | ret = -1; |
| 1245 | goto end; |
| 1246 | } |
| 1247 | |
| 1248 | if (stream_class->clock_class && |
| 1249 | stream_class->clock_class != |
| 1250 | stream_class->clock->clock_class) { |
| 1251 | /* |
| 1252 | * Stream class already has an expected clock |
| 1253 | * class, but it does not match its clock's |
| 1254 | * class. |
| 1255 | */ |
| 1256 | BT_LOGW("Invalid parameter: stream class's clock's " |
| 1257 | "class does not match stream class's " |
| 1258 | "expected clock class: " |
| 1259 | "stream-class-addr=%p, " |
| 1260 | "stream-class-id=%" PRId64 ", " |
| 1261 | "stream-class-name=\"%s\", " |
| 1262 | "expected-clock-class-addr=%p, " |
| 1263 | "expected-clock-class-name=\"%s\"", |
| 1264 | stream_class, |
| 1265 | bt_stream_class_get_id(stream_class), |
| 1266 | bt_stream_class_get_name(stream_class), |
| 1267 | expected_clock_class, |
| 1268 | bt_clock_class_get_name(expected_clock_class)); |
| 1269 | } else if (!stream_class->clock_class) { |
| 1270 | /* |
| 1271 | * Set expected clock class to stream class's |
| 1272 | * clock's class. |
| 1273 | */ |
| 1274 | expected_clock_class = |
| 1275 | bt_get(stream_class->clock->clock_class); |
| 1276 | } |
| 1277 | } |
| 1278 | |
| 1279 | if (!stream_class->frozen) { |
| 1280 | /* |
| 1281 | * Stream class is not frozen yet. Validate that the |
| 1282 | * stream class contains at most a single clock class |
| 1283 | * because the previous |
| 1284 | * bt_stream_class_add_event_class() calls did not make |
| 1285 | * this validation since the stream class's direct field |
| 1286 | * types (packet context, event header, event context) |
| 1287 | * could change afterwards. This stream class is about |
| 1288 | * to be frozen and those field types won't be changed |
| 1289 | * if this function succeeds. |
| 1290 | * |
| 1291 | * At this point we're also sure that the stream class's |
| 1292 | * clock, if any, has the same class as the stream |
| 1293 | * class's expected clock class, if any. This is why, if |
| 1294 | * bt_stream_class_validate_single_clock_class() |
| 1295 | * succeeds below, the call to |
| 1296 | * bt_stream_class_map_clock_class() at the end of this |
| 1297 | * function is safe because it maps to the same, single |
| 1298 | * clock class. |
| 1299 | */ |
| 1300 | ret = bt_stream_class_validate_single_clock_class(stream_class, |
| 1301 | &expected_clock_class); |
| 1302 | if (ret) { |
| 1303 | BT_LOGW("Invalid parameter: stream class or one of its " |
| 1304 | "event classes contains a field type which is " |
| 1305 | "not recursively mapped to the expected " |
| 1306 | "clock class: " |
| 1307 | "stream-class-addr=%p, " |
| 1308 | "stream-class-id=%" PRId64 ", " |
| 1309 | "stream-class-name=\"%s\", " |
| 1310 | "expected-clock-class-addr=%p, " |
| 1311 | "expected-clock-class-name=\"%s\"", |
| 1312 | stream_class, bt_stream_class_get_id(stream_class), |
| 1313 | bt_stream_class_get_name(stream_class), |
| 1314 | expected_clock_class, |
| 1315 | expected_clock_class ? |
| 1316 | bt_clock_class_get_name(expected_clock_class) : |
| 1317 | NULL); |
| 1318 | goto end; |
| 1319 | } |
| 1320 | } |
| 1321 | |
| 1322 | ret = check_packet_header_type_has_no_clock_class(trace); |
| 1323 | if (ret) { |
| 1324 | /* check_packet_header_type_has_no_clock_class() logs errors */ |
| 1325 | goto end; |
| 1326 | } |
| 1327 | |
| 1328 | /* |
| 1329 | * We're about to freeze both the trace and the stream class. |
| 1330 | * Also, each event class contained in this stream class are |
| 1331 | * already frozen. |
| 1332 | * |
| 1333 | * This trace, this stream class, and all its event classes |
| 1334 | * should be valid at this point. |
| 1335 | * |
| 1336 | * Validate trace and stream class first, then each event |
| 1337 | * class of this stream class can be validated individually. |
| 1338 | */ |
| 1339 | packet_header_type = |
| 1340 | bt_trace_get_packet_header_type(trace); |
| 1341 | packet_context_type = |
| 1342 | bt_stream_class_get_packet_context_type(stream_class); |
| 1343 | event_header_type = |
| 1344 | bt_stream_class_get_event_header_type(stream_class); |
| 1345 | stream_event_ctx_type = |
| 1346 | bt_stream_class_get_event_context_type(stream_class); |
| 1347 | |
| 1348 | BT_LOGD("Validating trace and stream class field types."); |
| 1349 | ret = bt_validate_class_types(trace->environment, |
| 1350 | packet_header_type, packet_context_type, event_header_type, |
| 1351 | stream_event_ctx_type, NULL, NULL, trace->valid, |
| 1352 | stream_class->valid, 1, &trace_sc_validation_output, |
| 1353 | trace_sc_validation_flags); |
| 1354 | BT_PUT(packet_header_type); |
| 1355 | BT_PUT(packet_context_type); |
| 1356 | BT_PUT(event_header_type); |
| 1357 | BT_PUT(stream_event_ctx_type); |
| 1358 | |
| 1359 | if (ret) { |
| 1360 | /* |
| 1361 | * This means something went wrong during the validation |
| 1362 | * process, not that the objects are invalid. |
| 1363 | */ |
| 1364 | BT_LOGE("Failed to validate trace and stream class field types: " |
| 1365 | "ret=%d", ret); |
| 1366 | goto end; |
| 1367 | } |
| 1368 | |
| 1369 | if ((trace_sc_validation_output.valid_flags & |
| 1370 | trace_sc_validation_flags) != |
| 1371 | trace_sc_validation_flags) { |
| 1372 | /* Invalid trace/stream class */ |
| 1373 | BT_LOGW("Invalid trace or stream class field types: " |
| 1374 | "valid-flags=0x%x", |
| 1375 | trace_sc_validation_output.valid_flags); |
| 1376 | ret = -1; |
| 1377 | goto end; |
| 1378 | } |
| 1379 | |
| 1380 | if (event_class_count > 0) { |
| 1381 | ec_validation_outputs = g_new0(struct bt_validation_output, |
| 1382 | event_class_count); |
| 1383 | if (!ec_validation_outputs) { |
| 1384 | BT_LOGE_STR("Failed to allocate one validation output structure."); |
| 1385 | ret = -1; |
| 1386 | goto end; |
| 1387 | } |
| 1388 | } |
| 1389 | |
| 1390 | /* Validate each event class individually */ |
| 1391 | for (i = 0; i < event_class_count; i++) { |
| 1392 | struct bt_event_class *event_class = |
| 1393 | bt_stream_class_get_event_class_by_index( |
| 1394 | stream_class, i); |
| 1395 | struct bt_field_type *event_context_type = NULL; |
| 1396 | struct bt_field_type *event_payload_type = NULL; |
| 1397 | |
| 1398 | event_context_type = |
| 1399 | bt_event_class_get_context_type(event_class); |
| 1400 | event_payload_type = |
| 1401 | bt_event_class_get_payload_type(event_class); |
| 1402 | |
| 1403 | /* |
| 1404 | * It is important to use the field types returned by |
| 1405 | * the previous trace and stream class validation here |
| 1406 | * because copies could have been made. |
| 1407 | */ |
| 1408 | BT_LOGD("Validating event class's field types: " |
| 1409 | "addr=%p, name=\"%s\", id=%" PRId64, |
| 1410 | event_class, bt_event_class_get_name(event_class), |
| 1411 | bt_event_class_get_id(event_class)); |
| 1412 | ret = bt_validate_class_types(trace->environment, |
| 1413 | trace_sc_validation_output.packet_header_type, |
| 1414 | trace_sc_validation_output.packet_context_type, |
| 1415 | trace_sc_validation_output.event_header_type, |
| 1416 | trace_sc_validation_output.stream_event_ctx_type, |
| 1417 | event_context_type, event_payload_type, |
| 1418 | 1, 1, event_class->valid, &ec_validation_outputs[i], |
| 1419 | ec_validation_flags); |
| 1420 | BT_PUT(event_context_type); |
| 1421 | BT_PUT(event_payload_type); |
| 1422 | BT_PUT(event_class); |
| 1423 | |
| 1424 | if (ret) { |
| 1425 | BT_LOGE("Failed to validate event class field types: " |
| 1426 | "ret=%d", ret); |
| 1427 | goto end; |
| 1428 | } |
| 1429 | |
| 1430 | if ((ec_validation_outputs[i].valid_flags & |
| 1431 | ec_validation_flags) != ec_validation_flags) { |
| 1432 | /* Invalid event class */ |
| 1433 | BT_LOGW("Invalid event class field types: " |
| 1434 | "valid-flags=0x%x", |
| 1435 | ec_validation_outputs[i].valid_flags); |
| 1436 | ret = -1; |
| 1437 | goto end; |
| 1438 | } |
| 1439 | } |
| 1440 | |
| 1441 | stream_id = bt_stream_class_get_id(stream_class); |
| 1442 | if (stream_id < 0) { |
| 1443 | stream_id = trace->next_stream_id++; |
| 1444 | if (stream_id < 0) { |
| 1445 | BT_LOGE_STR("No more stream class IDs available."); |
| 1446 | ret = -1; |
| 1447 | goto end; |
| 1448 | } |
| 1449 | |
| 1450 | /* Try to assign a new stream id */ |
| 1451 | for (i = 0; i < trace->stream_classes->len; i++) { |
| 1452 | if (stream_id == bt_stream_class_get_id( |
| 1453 | trace->stream_classes->pdata[i])) { |
| 1454 | /* Duplicate stream id found */ |
| 1455 | BT_LOGW("Duplicate stream class ID: " |
| 1456 | "id=%" PRId64, (int64_t) stream_id); |
| 1457 | ret = -1; |
| 1458 | goto end; |
| 1459 | } |
| 1460 | } |
| 1461 | |
| 1462 | if (bt_stream_class_set_id_no_check(stream_class, |
| 1463 | stream_id)) { |
| 1464 | /* TODO Should retry with a different stream id */ |
| 1465 | BT_LOGE("Cannot set stream class's ID: " |
| 1466 | "id=%" PRId64, (int64_t) stream_id); |
| 1467 | ret = -1; |
| 1468 | goto end; |
| 1469 | } |
| 1470 | } |
| 1471 | |
| 1472 | /* |
| 1473 | * At this point all the field types in the validation output |
| 1474 | * are valid. Validate the semantics of some scopes according to |
| 1475 | * the CTF specification. |
| 1476 | */ |
| 1477 | if (!packet_header_field_type_is_valid(trace, |
| 1478 | trace_sc_validation_output.packet_header_type)) { |
| 1479 | BT_LOGW_STR("Invalid trace's packet header field type."); |
| 1480 | ret = -1; |
| 1481 | goto end; |
| 1482 | } |
| 1483 | |
| 1484 | if (!packet_context_field_type_is_valid(trace, |
| 1485 | stream_class, |
| 1486 | trace_sc_validation_output.packet_context_type)) { |
| 1487 | BT_LOGW_STR("Invalid stream class's packet context field type."); |
| 1488 | ret = -1; |
| 1489 | goto end; |
| 1490 | } |
| 1491 | |
| 1492 | if (!event_header_field_type_is_valid(trace, |
| 1493 | stream_class, |
| 1494 | trace_sc_validation_output.event_header_type)) { |
| 1495 | BT_LOGW_STR("Invalid steam class's event header field type."); |
| 1496 | ret = -1; |
| 1497 | goto end; |
| 1498 | } |
| 1499 | |
| 1500 | /* |
| 1501 | * Now is the time to automatically map specific field types of |
| 1502 | * the stream class's packet context and event header field |
| 1503 | * types to the stream class's clock's class if they are not |
| 1504 | * mapped to a clock class yet. We do it here because we know |
| 1505 | * that after this point, everything is frozen so it won't be |
| 1506 | * possible for the user to modify the stream class's clock, or |
| 1507 | * to map those field types to other clock classes. |
| 1508 | */ |
| 1509 | if (trace->is_created_by_writer) { |
| 1510 | if (bt_stream_class_map_clock_class(stream_class, |
| 1511 | trace_sc_validation_output.packet_context_type, |
| 1512 | trace_sc_validation_output.event_header_type)) { |
| 1513 | BT_LOGW_STR("Cannot automatically map selected stream class's field types to stream class's clock's class."); |
| 1514 | ret = -1; |
| 1515 | goto end; |
| 1516 | } |
| 1517 | } |
| 1518 | |
| 1519 | |
| 1520 | |
| 1521 | bt_object_set_parent(stream_class, trace); |
| 1522 | g_ptr_array_add(trace->stream_classes, stream_class); |
| 1523 | |
| 1524 | /* |
| 1525 | * At this point we know that the function will be successful. |
| 1526 | * Therefore we can replace the trace and stream class field |
| 1527 | * types with what's in their validation output structure and |
| 1528 | * mark them as valid. We can also replace the field types of |
| 1529 | * all the event classes of the stream class and mark them as |
| 1530 | * valid. |
| 1531 | */ |
| 1532 | bt_validation_replace_types(trace, stream_class, NULL, |
| 1533 | &trace_sc_validation_output, trace_sc_validation_flags); |
| 1534 | trace->valid = 1; |
| 1535 | stream_class->valid = 1; |
| 1536 | |
| 1537 | /* |
| 1538 | * Put what was not moved in bt_validation_replace_types(). |
| 1539 | */ |
| 1540 | bt_validation_output_put_types(&trace_sc_validation_output); |
| 1541 | |
| 1542 | for (i = 0; i < event_class_count; i++) { |
| 1543 | struct bt_event_class *event_class = |
| 1544 | bt_stream_class_get_event_class_by_index( |
| 1545 | stream_class, i); |
| 1546 | |
| 1547 | bt_validation_replace_types(NULL, NULL, event_class, |
| 1548 | &ec_validation_outputs[i], ec_validation_flags); |
| 1549 | event_class->valid = 1; |
| 1550 | BT_PUT(event_class); |
| 1551 | |
| 1552 | /* |
| 1553 | * Put what was not moved in |
| 1554 | * bt_validation_replace_types(). |
| 1555 | */ |
| 1556 | bt_validation_output_put_types(&ec_validation_outputs[i]); |
| 1557 | } |
| 1558 | |
| 1559 | /* |
| 1560 | * Freeze the trace and the stream class. |
| 1561 | */ |
| 1562 | bt_stream_class_freeze(stream_class); |
| 1563 | bt_trace_freeze(trace); |
| 1564 | |
| 1565 | /* |
| 1566 | * It is safe to set the stream class's unique clock class |
| 1567 | * now because the stream class is frozen. |
| 1568 | */ |
| 1569 | if (expected_clock_class) { |
| 1570 | BT_MOVE(stream_class->clock_class, expected_clock_class); |
| 1571 | } |
| 1572 | |
| 1573 | /* Notifiy listeners of the trace's schema modification. */ |
| 1574 | bt_stream_class_visit(stream_class, |
| 1575 | bt_trace_object_modification, trace); |
| 1576 | BT_LOGD("Added stream class to trace: " |
| 1577 | "trace-addr=%p, trace-name=\"%s\", " |
| 1578 | "stream-class-addr=%p, stream-class-name=\"%s\", " |
| 1579 | "stream-class-id=%" PRId64, |
| 1580 | trace, bt_trace_get_name(trace), |
| 1581 | stream_class, bt_stream_class_get_name(stream_class), |
| 1582 | bt_stream_class_get_id(stream_class)); |
| 1583 | |
| 1584 | end: |
| 1585 | if (ret) { |
| 1586 | bt_object_set_parent(stream_class, NULL); |
| 1587 | |
| 1588 | if (ec_validation_outputs) { |
| 1589 | for (i = 0; i < event_class_count; i++) { |
| 1590 | bt_validation_output_put_types( |
| 1591 | &ec_validation_outputs[i]); |
| 1592 | } |
| 1593 | } |
| 1594 | } |
| 1595 | |
| 1596 | g_free(ec_validation_outputs); |
| 1597 | bt_validation_output_put_types(&trace_sc_validation_output); |
| 1598 | bt_put(current_parent_trace); |
| 1599 | bt_put(expected_clock_class); |
| 1600 | assert(!packet_header_type); |
| 1601 | assert(!packet_context_type); |
| 1602 | assert(!event_header_type); |
| 1603 | assert(!stream_event_ctx_type); |
| 1604 | return ret; |
| 1605 | } |
| 1606 | |
| 1607 | int64_t bt_trace_get_stream_count(struct bt_trace *trace) |
| 1608 | { |
| 1609 | int64_t ret; |
| 1610 | |
| 1611 | if (!trace) { |
| 1612 | BT_LOGW_STR("Invalid parameter: trace is NULL."); |
| 1613 | ret = (int64_t) -1; |
| 1614 | goto end; |
| 1615 | } |
| 1616 | |
| 1617 | ret = (int64_t) trace->streams->len; |
| 1618 | |
| 1619 | end: |
| 1620 | return ret; |
| 1621 | } |
| 1622 | |
| 1623 | struct bt_stream *bt_trace_get_stream_by_index( |
| 1624 | struct bt_trace *trace, |
| 1625 | uint64_t index) |
| 1626 | { |
| 1627 | struct bt_stream *stream = NULL; |
| 1628 | |
| 1629 | if (!trace) { |
| 1630 | BT_LOGW_STR("Invalid parameter: trace is NULL."); |
| 1631 | goto end; |
| 1632 | } |
| 1633 | |
| 1634 | if (index >= trace->streams->len) { |
| 1635 | BT_LOGW("Invalid parameter: index is out of bounds: " |
| 1636 | "addr=%p, name=\"%s\", " |
| 1637 | "index=%" PRIu64 ", count=%u", |
| 1638 | trace, bt_trace_get_name(trace), |
| 1639 | index, trace->streams->len); |
| 1640 | goto end; |
| 1641 | } |
| 1642 | |
| 1643 | stream = bt_get(g_ptr_array_index(trace->streams, index)); |
| 1644 | |
| 1645 | end: |
| 1646 | return stream; |
| 1647 | } |
| 1648 | |
| 1649 | int64_t bt_trace_get_stream_class_count(struct bt_trace *trace) |
| 1650 | { |
| 1651 | int64_t ret; |
| 1652 | |
| 1653 | if (!trace) { |
| 1654 | BT_LOGW_STR("Invalid parameter: trace is NULL."); |
| 1655 | ret = (int64_t) -1; |
| 1656 | goto end; |
| 1657 | } |
| 1658 | |
| 1659 | ret = (int64_t) trace->stream_classes->len; |
| 1660 | end: |
| 1661 | return ret; |
| 1662 | } |
| 1663 | |
| 1664 | struct bt_stream_class *bt_trace_get_stream_class_by_index( |
| 1665 | struct bt_trace *trace, uint64_t index) |
| 1666 | { |
| 1667 | struct bt_stream_class *stream_class = NULL; |
| 1668 | |
| 1669 | if (!trace) { |
| 1670 | BT_LOGW_STR("Invalid parameter: trace is NULL."); |
| 1671 | goto end; |
| 1672 | } |
| 1673 | |
| 1674 | if (index >= trace->stream_classes->len) { |
| 1675 | BT_LOGW("Invalid parameter: index is out of bounds: " |
| 1676 | "addr=%p, name=\"%s\", " |
| 1677 | "index=%" PRIu64 ", count=%u", |
| 1678 | trace, bt_trace_get_name(trace), |
| 1679 | index, trace->stream_classes->len); |
| 1680 | goto end; |
| 1681 | } |
| 1682 | |
| 1683 | stream_class = g_ptr_array_index(trace->stream_classes, index); |
| 1684 | bt_get(stream_class); |
| 1685 | end: |
| 1686 | return stream_class; |
| 1687 | } |
| 1688 | |
| 1689 | struct bt_stream_class *bt_trace_get_stream_class_by_id( |
| 1690 | struct bt_trace *trace, uint64_t id_param) |
| 1691 | { |
| 1692 | int i; |
| 1693 | struct bt_stream_class *stream_class = NULL; |
| 1694 | int64_t id = (int64_t) id_param; |
| 1695 | |
| 1696 | if (!trace) { |
| 1697 | BT_LOGW_STR("Invalid parameter: trace is NULL."); |
| 1698 | goto end; |
| 1699 | } |
| 1700 | |
| 1701 | if (id < 0) { |
| 1702 | BT_LOGW("Invalid parameter: invalid stream class's ID: " |
| 1703 | "trace-addr=%p, trace-name=\"%s\", id=%" PRIu64, |
| 1704 | trace, bt_trace_get_name(trace), id_param); |
| 1705 | goto end; |
| 1706 | } |
| 1707 | |
| 1708 | for (i = 0; i < trace->stream_classes->len; i++) { |
| 1709 | struct bt_stream_class *stream_class_candidate; |
| 1710 | |
| 1711 | stream_class_candidate = |
| 1712 | g_ptr_array_index(trace->stream_classes, i); |
| 1713 | |
| 1714 | if (bt_stream_class_get_id(stream_class_candidate) == |
| 1715 | (int64_t) id) { |
| 1716 | stream_class = stream_class_candidate; |
| 1717 | bt_get(stream_class); |
| 1718 | goto end; |
| 1719 | } |
| 1720 | } |
| 1721 | |
| 1722 | end: |
| 1723 | return stream_class; |
| 1724 | } |
| 1725 | |
| 1726 | struct bt_clock_class *bt_trace_get_clock_class_by_name( |
| 1727 | struct bt_trace *trace, const char *name) |
| 1728 | { |
| 1729 | size_t i; |
| 1730 | struct bt_clock_class *clock_class = NULL; |
| 1731 | |
| 1732 | if (!trace) { |
| 1733 | BT_LOGW_STR("Invalid parameter: trace is NULL."); |
| 1734 | goto end; |
| 1735 | } |
| 1736 | |
| 1737 | if (!name) { |
| 1738 | BT_LOGW_STR("Invalid parameter: name is NULL."); |
| 1739 | goto end; |
| 1740 | } |
| 1741 | |
| 1742 | for (i = 0; i < trace->clocks->len; i++) { |
| 1743 | struct bt_clock_class *cur_clk = |
| 1744 | g_ptr_array_index(trace->clocks, i); |
| 1745 | const char *cur_clk_name = bt_clock_class_get_name(cur_clk); |
| 1746 | |
| 1747 | if (!cur_clk_name) { |
| 1748 | goto end; |
| 1749 | } |
| 1750 | |
| 1751 | if (!strcmp(cur_clk_name, name)) { |
| 1752 | clock_class = cur_clk; |
| 1753 | bt_get(clock_class); |
| 1754 | goto end; |
| 1755 | } |
| 1756 | } |
| 1757 | |
| 1758 | end: |
| 1759 | return clock_class; |
| 1760 | } |
| 1761 | |
| 1762 | BT_HIDDEN |
| 1763 | bt_bool bt_trace_has_clock_class(struct bt_trace *trace, |
| 1764 | struct bt_clock_class *clock_class) |
| 1765 | { |
| 1766 | struct search_query query = { .value = clock_class, .found = 0 }; |
| 1767 | |
| 1768 | assert(trace); |
| 1769 | assert(clock_class); |
| 1770 | |
| 1771 | g_ptr_array_foreach(trace->clocks, value_exists, &query); |
| 1772 | return query.found; |
| 1773 | } |
| 1774 | |
| 1775 | BT_HIDDEN |
| 1776 | const char *get_byte_order_string(enum bt_byte_order byte_order) |
| 1777 | { |
| 1778 | const char *string; |
| 1779 | |
| 1780 | switch (byte_order) { |
| 1781 | case BT_BYTE_ORDER_LITTLE_ENDIAN: |
| 1782 | string = "le"; |
| 1783 | break; |
| 1784 | case BT_BYTE_ORDER_BIG_ENDIAN: |
| 1785 | string = "be"; |
| 1786 | break; |
| 1787 | case BT_BYTE_ORDER_NATIVE: |
| 1788 | string = "native"; |
| 1789 | break; |
| 1790 | default: |
| 1791 | abort(); |
| 1792 | } |
| 1793 | |
| 1794 | return string; |
| 1795 | } |
| 1796 | |
| 1797 | static |
| 1798 | int append_trace_metadata(struct bt_trace *trace, |
| 1799 | struct metadata_context *context) |
| 1800 | { |
| 1801 | unsigned char *uuid = trace->uuid; |
| 1802 | int ret = 0; |
| 1803 | |
| 1804 | if (trace->native_byte_order == BT_BYTE_ORDER_NATIVE || |
| 1805 | trace->native_byte_order == BT_BYTE_ORDER_UNSPECIFIED) { |
| 1806 | BT_LOGW("Invalid parameter: trace's byte order cannot be BT_BYTE_ORDER_NATIVE or BT_BYTE_ORDER_UNSPECIFIED at this point; " |
| 1807 | "set it with bt_trace_set_native_byte_order(): " |
| 1808 | "addr=%p, name=\"%s\"", |
| 1809 | trace, bt_trace_get_name(trace)); |
| 1810 | ret = -1; |
| 1811 | goto end; |
| 1812 | } |
| 1813 | |
| 1814 | g_string_append(context->string, "trace {\n"); |
| 1815 | g_string_append(context->string, "\tmajor = 1;\n"); |
| 1816 | g_string_append(context->string, "\tminor = 8;\n"); |
| 1817 | assert(trace->native_byte_order == BT_BYTE_ORDER_LITTLE_ENDIAN || |
| 1818 | trace->native_byte_order == BT_BYTE_ORDER_BIG_ENDIAN || |
| 1819 | trace->native_byte_order == BT_BYTE_ORDER_NETWORK); |
| 1820 | |
| 1821 | if (trace->uuid_set) { |
| 1822 | g_string_append_printf(context->string, |
| 1823 | "\tuuid = \"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\";\n", |
| 1824 | uuid[0], uuid[1], uuid[2], uuid[3], |
| 1825 | uuid[4], uuid[5], uuid[6], uuid[7], |
| 1826 | uuid[8], uuid[9], uuid[10], uuid[11], |
| 1827 | uuid[12], uuid[13], uuid[14], uuid[15]); |
| 1828 | } |
| 1829 | |
| 1830 | g_string_append_printf(context->string, "\tbyte_order = %s;\n", |
| 1831 | get_byte_order_string(trace->native_byte_order)); |
| 1832 | |
| 1833 | if (trace->packet_header_type) { |
| 1834 | g_string_append(context->string, "\tpacket.header := "); |
| 1835 | context->current_indentation_level++; |
| 1836 | g_string_assign(context->field_name, ""); |
| 1837 | BT_LOGD_STR("Serializing trace's packet header field type's metadata."); |
| 1838 | ret = bt_field_type_serialize(trace->packet_header_type, |
| 1839 | context); |
| 1840 | if (ret) { |
| 1841 | goto end; |
| 1842 | } |
| 1843 | context->current_indentation_level--; |
| 1844 | } |
| 1845 | |
| 1846 | g_string_append(context->string, ";\n};\n\n"); |
| 1847 | end: |
| 1848 | return ret; |
| 1849 | } |
| 1850 | |
| 1851 | static |
| 1852 | void append_env_metadata(struct bt_trace *trace, |
| 1853 | struct metadata_context *context) |
| 1854 | { |
| 1855 | int64_t i; |
| 1856 | int64_t env_size; |
| 1857 | |
| 1858 | env_size = bt_attributes_get_count(trace->environment); |
| 1859 | if (env_size <= 0) { |
| 1860 | return; |
| 1861 | } |
| 1862 | |
| 1863 | g_string_append(context->string, "env {\n"); |
| 1864 | |
| 1865 | for (i = 0; i < env_size; i++) { |
| 1866 | struct bt_value *env_field_value_obj = NULL; |
| 1867 | const char *entry_name; |
| 1868 | |
| 1869 | entry_name = bt_attributes_get_field_name( |
| 1870 | trace->environment, i); |
| 1871 | env_field_value_obj = bt_attributes_get_field_value( |
| 1872 | trace->environment, i); |
| 1873 | |
| 1874 | assert(entry_name); |
| 1875 | assert(env_field_value_obj); |
| 1876 | |
| 1877 | switch (bt_value_get_type(env_field_value_obj)) { |
| 1878 | case BT_VALUE_TYPE_INTEGER: |
| 1879 | { |
| 1880 | int ret; |
| 1881 | int64_t int_value; |
| 1882 | |
| 1883 | ret = bt_value_integer_get(env_field_value_obj, |
| 1884 | &int_value); |
| 1885 | assert(ret == 0); |
| 1886 | g_string_append_printf(context->string, |
| 1887 | "\t%s = %" PRId64 ";\n", entry_name, |
| 1888 | int_value); |
| 1889 | break; |
| 1890 | } |
| 1891 | case BT_VALUE_TYPE_STRING: |
| 1892 | { |
| 1893 | int ret; |
| 1894 | const char *str_value; |
| 1895 | char *escaped_str = NULL; |
| 1896 | |
| 1897 | ret = bt_value_string_get(env_field_value_obj, |
| 1898 | &str_value); |
| 1899 | assert(ret == 0); |
| 1900 | escaped_str = g_strescape(str_value, NULL); |
| 1901 | if (!escaped_str) { |
| 1902 | BT_LOGE("Cannot escape string: string=\"%s\"", |
| 1903 | str_value); |
| 1904 | goto loop_next; |
| 1905 | } |
| 1906 | |
| 1907 | g_string_append_printf(context->string, |
| 1908 | "\t%s = \"%s\";\n", entry_name, escaped_str); |
| 1909 | free(escaped_str); |
| 1910 | break; |
| 1911 | } |
| 1912 | default: |
| 1913 | goto loop_next; |
| 1914 | } |
| 1915 | |
| 1916 | loop_next: |
| 1917 | BT_PUT(env_field_value_obj); |
| 1918 | } |
| 1919 | |
| 1920 | g_string_append(context->string, "};\n\n"); |
| 1921 | } |
| 1922 | |
| 1923 | char *bt_trace_get_metadata_string(struct bt_trace *trace) |
| 1924 | { |
| 1925 | char *metadata = NULL; |
| 1926 | struct metadata_context *context = NULL; |
| 1927 | int err = 0; |
| 1928 | size_t i; |
| 1929 | |
| 1930 | if (!trace) { |
| 1931 | BT_LOGW_STR("Invalid parameter: trace is NULL."); |
| 1932 | goto end; |
| 1933 | } |
| 1934 | |
| 1935 | context = g_new0(struct metadata_context, 1); |
| 1936 | if (!context) { |
| 1937 | BT_LOGE_STR("Failed to allocate one metadata context."); |
| 1938 | goto end; |
| 1939 | } |
| 1940 | |
| 1941 | context->field_name = g_string_sized_new(DEFAULT_IDENTIFIER_SIZE); |
| 1942 | context->string = g_string_sized_new(DEFAULT_METADATA_STRING_SIZE); |
| 1943 | g_string_append(context->string, "/* CTF 1.8 */\n\n"); |
| 1944 | if (append_trace_metadata(trace, context)) { |
| 1945 | /* append_trace_metadata() logs errors */ |
| 1946 | goto error; |
| 1947 | } |
| 1948 | append_env_metadata(trace, context); |
| 1949 | g_ptr_array_foreach(trace->clocks, |
| 1950 | (GFunc)bt_clock_class_serialize, context); |
| 1951 | |
| 1952 | for (i = 0; i < trace->stream_classes->len; i++) { |
| 1953 | /* bt_stream_class_serialize() logs details */ |
| 1954 | err = bt_stream_class_serialize( |
| 1955 | trace->stream_classes->pdata[i], context); |
| 1956 | if (err) { |
| 1957 | /* bt_stream_class_serialize() logs errors */ |
| 1958 | goto error; |
| 1959 | } |
| 1960 | } |
| 1961 | |
| 1962 | metadata = context->string->str; |
| 1963 | |
| 1964 | error: |
| 1965 | g_string_free(context->string, err ? TRUE : FALSE); |
| 1966 | g_string_free(context->field_name, TRUE); |
| 1967 | g_free(context); |
| 1968 | |
| 1969 | end: |
| 1970 | return metadata; |
| 1971 | } |
| 1972 | |
| 1973 | enum bt_byte_order bt_trace_get_native_byte_order( |
| 1974 | struct bt_trace *trace) |
| 1975 | { |
| 1976 | enum bt_byte_order ret = BT_BYTE_ORDER_UNKNOWN; |
| 1977 | |
| 1978 | if (!trace) { |
| 1979 | BT_LOGW_STR("Invalid parameter: trace is NULL."); |
| 1980 | goto end; |
| 1981 | } |
| 1982 | |
| 1983 | ret = trace->native_byte_order; |
| 1984 | |
| 1985 | end: |
| 1986 | return ret; |
| 1987 | } |
| 1988 | |
| 1989 | int bt_trace_set_native_byte_order(struct bt_trace *trace, |
| 1990 | enum bt_byte_order byte_order) |
| 1991 | { |
| 1992 | int ret = 0; |
| 1993 | |
| 1994 | if (!trace) { |
| 1995 | BT_LOGW_STR("Invalid parameter: trace is NULL."); |
| 1996 | ret = -1; |
| 1997 | goto end; |
| 1998 | } |
| 1999 | |
| 2000 | if (trace->frozen) { |
| 2001 | BT_LOGW("Invalid parameter: trace is frozen: " |
| 2002 | "addr=%p, name=\"%s\"", |
| 2003 | trace, bt_trace_get_name(trace)); |
| 2004 | ret = -1; |
| 2005 | goto end; |
| 2006 | } |
| 2007 | |
| 2008 | if (trace->is_created_by_writer && |
| 2009 | byte_order == BT_BYTE_ORDER_UNSPECIFIED) { |
| 2010 | BT_LOGW("Invalid parameter: BT_BYTE_ORDER_UNSPECIFIED byte order is not allowed for a CTF writer trace: " |
| 2011 | "addr=%p, name=\"%s\"", |
| 2012 | trace, bt_trace_get_name(trace)); |
| 2013 | ret = -1; |
| 2014 | goto end; |
| 2015 | } |
| 2016 | |
| 2017 | if (byte_order != BT_BYTE_ORDER_LITTLE_ENDIAN && |
| 2018 | byte_order != BT_BYTE_ORDER_BIG_ENDIAN && |
| 2019 | byte_order != BT_BYTE_ORDER_NETWORK) { |
| 2020 | BT_LOGW("Invalid parameter: invalid byte order: " |
| 2021 | "addr=%p, name=\"%s\", bo=%s", |
| 2022 | trace, bt_trace_get_name(trace), |
| 2023 | bt_byte_order_string(byte_order)); |
| 2024 | ret = -1; |
| 2025 | goto end; |
| 2026 | } |
| 2027 | |
| 2028 | trace->native_byte_order = byte_order; |
| 2029 | BT_LOGV("Set trace's native byte order: " |
| 2030 | "addr=%p, name=\"%s\", bo=%s", |
| 2031 | trace, bt_trace_get_name(trace), |
| 2032 | bt_byte_order_string(byte_order)); |
| 2033 | |
| 2034 | end: |
| 2035 | return ret; |
| 2036 | } |
| 2037 | |
| 2038 | struct bt_field_type *bt_trace_get_packet_header_type( |
| 2039 | struct bt_trace *trace) |
| 2040 | { |
| 2041 | struct bt_field_type *field_type = NULL; |
| 2042 | |
| 2043 | if (!trace) { |
| 2044 | BT_LOGW_STR("Invalid parameter: trace is NULL."); |
| 2045 | goto end; |
| 2046 | } |
| 2047 | |
| 2048 | bt_get(trace->packet_header_type); |
| 2049 | field_type = trace->packet_header_type; |
| 2050 | end: |
| 2051 | return field_type; |
| 2052 | } |
| 2053 | |
| 2054 | int bt_trace_set_packet_header_type(struct bt_trace *trace, |
| 2055 | struct bt_field_type *packet_header_type) |
| 2056 | { |
| 2057 | int ret = 0; |
| 2058 | |
| 2059 | if (!trace) { |
| 2060 | BT_LOGW_STR("Invalid parameter: trace is NULL."); |
| 2061 | ret = -1; |
| 2062 | goto end; |
| 2063 | } |
| 2064 | |
| 2065 | if (trace->frozen) { |
| 2066 | BT_LOGW("Invalid parameter: trace is frozen: " |
| 2067 | "addr=%p, name=\"%s\"", |
| 2068 | trace, bt_trace_get_name(trace)); |
| 2069 | ret = -1; |
| 2070 | goto end; |
| 2071 | } |
| 2072 | |
| 2073 | /* packet_header_type must be a structure. */ |
| 2074 | if (packet_header_type && |
| 2075 | !bt_field_type_is_structure(packet_header_type)) { |
| 2076 | BT_LOGW("Invalid parameter: packet header field type must be a structure field type if it exists: " |
| 2077 | "addr=%p, name=\"%s\", ft-addr=%p, ft-id=%s", |
| 2078 | trace, bt_trace_get_name(trace), |
| 2079 | packet_header_type, |
| 2080 | bt_field_type_id_string(packet_header_type->id)); |
| 2081 | ret = -1; |
| 2082 | goto end; |
| 2083 | } |
| 2084 | |
| 2085 | bt_put(trace->packet_header_type); |
| 2086 | trace->packet_header_type = bt_get(packet_header_type); |
| 2087 | BT_LOGV("Set trace's packet header field type: " |
| 2088 | "addr=%p, name=\"%s\", packet-context-ft-addr=%p", |
| 2089 | trace, bt_trace_get_name(trace), packet_header_type); |
| 2090 | end: |
| 2091 | return ret; |
| 2092 | } |
| 2093 | |
| 2094 | static |
| 2095 | int64_t get_stream_class_count(void *element) |
| 2096 | { |
| 2097 | return bt_trace_get_stream_class_count( |
| 2098 | (struct bt_trace *) element); |
| 2099 | } |
| 2100 | |
| 2101 | static |
| 2102 | void *get_stream_class(void *element, int i) |
| 2103 | { |
| 2104 | return bt_trace_get_stream_class_by_index( |
| 2105 | (struct bt_trace *) element, i); |
| 2106 | } |
| 2107 | |
| 2108 | static |
| 2109 | int visit_stream_class(void *object, bt_visitor visitor,void *data) |
| 2110 | { |
| 2111 | return bt_stream_class_visit(object, visitor, data); |
| 2112 | } |
| 2113 | |
| 2114 | int bt_trace_visit(struct bt_trace *trace, |
| 2115 | bt_visitor visitor, void *data) |
| 2116 | { |
| 2117 | int ret; |
| 2118 | struct bt_visitor_object obj = { |
| 2119 | .object = trace, |
| 2120 | .type = BT_VISITOR_OBJECT_TYPE_TRACE |
| 2121 | }; |
| 2122 | |
| 2123 | if (!trace) { |
| 2124 | BT_LOGW_STR("Invalid parameter: trace is NULL."); |
| 2125 | ret = -1; |
| 2126 | goto end; |
| 2127 | } |
| 2128 | |
| 2129 | if (!visitor) { |
| 2130 | BT_LOGW_STR("Invalid parameter: visitor is NULL."); |
| 2131 | ret = -1; |
| 2132 | goto end; |
| 2133 | } |
| 2134 | |
| 2135 | BT_LOGV("Visiting trace: addr=%p, name=\"%s\"", |
| 2136 | trace, bt_trace_get_name(trace)); |
| 2137 | ret = visitor_helper(&obj, get_stream_class_count, |
| 2138 | get_stream_class, visit_stream_class, visitor, data); |
| 2139 | end: |
| 2140 | return ret; |
| 2141 | } |
| 2142 | |
| 2143 | static |
| 2144 | int invoke_listener(struct bt_visitor_object *object, void *data) |
| 2145 | { |
| 2146 | struct listener_wrapper *listener_wrapper = data; |
| 2147 | |
| 2148 | listener_wrapper->listener(object, listener_wrapper->data); |
| 2149 | return 0; |
| 2150 | } |
| 2151 | |
| 2152 | // TODO: add logging to this function once we use it internally. |
| 2153 | int bt_trace_add_listener(struct bt_trace *trace, |
| 2154 | bt_listener_cb listener, void *listener_data) |
| 2155 | { |
| 2156 | int ret = 0; |
| 2157 | struct listener_wrapper *listener_wrapper = |
| 2158 | g_new0(struct listener_wrapper, 1); |
| 2159 | |
| 2160 | if (!trace || !listener || !listener_wrapper) { |
| 2161 | ret = -1; |
| 2162 | goto error; |
| 2163 | } |
| 2164 | |
| 2165 | listener_wrapper->listener = listener; |
| 2166 | listener_wrapper->data = listener_data; |
| 2167 | |
| 2168 | /* Visit the current schema. */ |
| 2169 | ret = bt_trace_visit(trace, invoke_listener, listener_wrapper); |
| 2170 | if (ret) { |
| 2171 | goto error; |
| 2172 | } |
| 2173 | |
| 2174 | /* |
| 2175 | * Add listener to the array of callbacks which will be invoked on |
| 2176 | * schema changes. |
| 2177 | */ |
| 2178 | g_ptr_array_add(trace->listeners, listener_wrapper); |
| 2179 | return ret; |
| 2180 | error: |
| 2181 | g_free(listener_wrapper); |
| 2182 | return ret; |
| 2183 | } |
| 2184 | |
| 2185 | BT_HIDDEN |
| 2186 | int bt_trace_object_modification(struct bt_visitor_object *object, |
| 2187 | void *trace_ptr) |
| 2188 | { |
| 2189 | size_t i; |
| 2190 | struct bt_trace *trace = trace_ptr; |
| 2191 | |
| 2192 | assert(trace); |
| 2193 | assert(object); |
| 2194 | |
| 2195 | if (trace->listeners->len == 0) { |
| 2196 | goto end; |
| 2197 | } |
| 2198 | |
| 2199 | for (i = 0; i < trace->listeners->len; i++) { |
| 2200 | struct listener_wrapper *listener = |
| 2201 | g_ptr_array_index(trace->listeners, i); |
| 2202 | |
| 2203 | listener->listener(object, listener->data); |
| 2204 | } |
| 2205 | end: |
| 2206 | return 0; |
| 2207 | } |
| 2208 | |
| 2209 | BT_HIDDEN |
| 2210 | struct bt_field_type *get_field_type(enum field_type_alias alias) |
| 2211 | { |
| 2212 | int ret; |
| 2213 | unsigned int alignment, size; |
| 2214 | struct bt_field_type *field_type = NULL; |
| 2215 | |
| 2216 | if (alias >= NR_FIELD_TYPE_ALIAS) { |
| 2217 | goto end; |
| 2218 | } |
| 2219 | |
| 2220 | alignment = field_type_aliases_alignments[alias]; |
| 2221 | size = field_type_aliases_sizes[alias]; |
| 2222 | field_type = bt_field_type_integer_create(size); |
| 2223 | ret = bt_field_type_set_alignment(field_type, alignment); |
| 2224 | if (ret) { |
| 2225 | BT_PUT(field_type); |
| 2226 | } |
| 2227 | end: |
| 2228 | return field_type; |
| 2229 | } |
| 2230 | |
| 2231 | static |
| 2232 | void bt_trace_freeze(struct bt_trace *trace) |
| 2233 | { |
| 2234 | int i; |
| 2235 | |
| 2236 | if (trace->frozen) { |
| 2237 | return; |
| 2238 | } |
| 2239 | |
| 2240 | BT_LOGD("Freezing trace: addr=%p, name=\"%s\"", |
| 2241 | trace, bt_trace_get_name(trace)); |
| 2242 | BT_LOGD_STR("Freezing packet header field type."); |
| 2243 | bt_field_type_freeze(trace->packet_header_type); |
| 2244 | BT_LOGD_STR("Freezing environment attributes."); |
| 2245 | bt_attributes_freeze(trace->environment); |
| 2246 | |
| 2247 | if (trace->clocks->len > 0) { |
| 2248 | BT_LOGD_STR("Freezing clock classes."); |
| 2249 | } |
| 2250 | |
| 2251 | for (i = 0; i < trace->clocks->len; i++) { |
| 2252 | struct bt_clock_class *clock_class = |
| 2253 | g_ptr_array_index(trace->clocks, i); |
| 2254 | |
| 2255 | bt_clock_class_freeze(clock_class); |
| 2256 | } |
| 2257 | |
| 2258 | trace->frozen = 1; |
| 2259 | } |
| 2260 | |
| 2261 | bt_bool bt_trace_is_static(struct bt_trace *trace) |
| 2262 | { |
| 2263 | bt_bool is_static = BT_FALSE; |
| 2264 | |
| 2265 | if (!trace) { |
| 2266 | BT_LOGW_STR("Invalid parameter: trace is NULL."); |
| 2267 | goto end; |
| 2268 | } |
| 2269 | |
| 2270 | is_static = trace->is_static; |
| 2271 | |
| 2272 | end: |
| 2273 | return is_static; |
| 2274 | } |
| 2275 | |
| 2276 | int bt_trace_set_is_static(struct bt_trace *trace) |
| 2277 | { |
| 2278 | int ret = 0; |
| 2279 | size_t i; |
| 2280 | |
| 2281 | if (!trace) { |
| 2282 | BT_LOGW_STR("Invalid parameter: trace is NULL."); |
| 2283 | ret = -1; |
| 2284 | goto end; |
| 2285 | } |
| 2286 | |
| 2287 | ret = check_packet_header_type_has_no_clock_class(trace); |
| 2288 | if (ret) { |
| 2289 | /* check_packet_header_type_has_no_clock_class() logs errors */ |
| 2290 | goto end; |
| 2291 | } |
| 2292 | |
| 2293 | trace->is_static = BT_TRUE; |
| 2294 | bt_trace_freeze(trace); |
| 2295 | BT_LOGV("Set trace static: addr=%p, name=\"%s\"", |
| 2296 | trace, bt_trace_get_name(trace)); |
| 2297 | |
| 2298 | /* Call all the "trace is static" listeners */ |
| 2299 | for (i = 0; i < trace->is_static_listeners->len; i++) { |
| 2300 | struct bt_trace_is_static_listener_elem elem = |
| 2301 | g_array_index(trace->is_static_listeners, |
| 2302 | struct bt_trace_is_static_listener_elem, i); |
| 2303 | |
| 2304 | if (elem.func) { |
| 2305 | elem.func(trace, elem.data); |
| 2306 | } |
| 2307 | } |
| 2308 | |
| 2309 | end: |
| 2310 | return ret; |
| 2311 | } |
| 2312 | |
| 2313 | int bt_trace_add_is_static_listener(struct bt_trace *trace, |
| 2314 | bt_trace_is_static_listener listener, |
| 2315 | bt_trace_listener_removed listener_removed, void *data) |
| 2316 | { |
| 2317 | int i; |
| 2318 | struct bt_trace_is_static_listener_elem new_elem = { |
| 2319 | .func = listener, |
| 2320 | .removed = listener_removed, |
| 2321 | .data = data, |
| 2322 | }; |
| 2323 | |
| 2324 | if (!trace) { |
| 2325 | BT_LOGW_STR("Invalid parameter: trace is NULL."); |
| 2326 | i = -1; |
| 2327 | goto end; |
| 2328 | } |
| 2329 | |
| 2330 | if (!listener) { |
| 2331 | BT_LOGW_STR("Invalid parameter: listener is NULL."); |
| 2332 | i = -1; |
| 2333 | goto end; |
| 2334 | } |
| 2335 | |
| 2336 | if (trace->is_static) { |
| 2337 | BT_LOGW("Invalid parameter: trace is already static: " |
| 2338 | "addr=%p, name=\"%s\"", |
| 2339 | trace, bt_trace_get_name(trace)); |
| 2340 | i = -1; |
| 2341 | goto end; |
| 2342 | } |
| 2343 | |
| 2344 | if (trace->in_remove_listener) { |
| 2345 | BT_LOGW("Cannot call this function during the execution of a remove listener: " |
| 2346 | "addr=%p, name=\"%s\"", |
| 2347 | trace, bt_trace_get_name(trace)); |
| 2348 | i = -1; |
| 2349 | goto end; |
| 2350 | } |
| 2351 | |
| 2352 | /* Find the next available spot */ |
| 2353 | for (i = 0; i < trace->is_static_listeners->len; i++) { |
| 2354 | struct bt_trace_is_static_listener_elem elem = |
| 2355 | g_array_index(trace->is_static_listeners, |
| 2356 | struct bt_trace_is_static_listener_elem, i); |
| 2357 | |
| 2358 | if (!elem.func) { |
| 2359 | break; |
| 2360 | } |
| 2361 | } |
| 2362 | |
| 2363 | if (i == trace->is_static_listeners->len) { |
| 2364 | g_array_append_val(trace->is_static_listeners, new_elem); |
| 2365 | } else { |
| 2366 | g_array_insert_val(trace->is_static_listeners, i, new_elem); |
| 2367 | } |
| 2368 | |
| 2369 | BT_LOGV("Added \"trace is static\" listener: " |
| 2370 | "trace-addr=%p, trace-name=\"%s\", func-addr=%p, " |
| 2371 | "data-addr=%p, listener-id=%d", |
| 2372 | trace, bt_trace_get_name(trace), listener, data, i); |
| 2373 | |
| 2374 | end: |
| 2375 | return i; |
| 2376 | } |
| 2377 | |
| 2378 | int bt_trace_remove_is_static_listener( |
| 2379 | struct bt_trace *trace, int listener_id) |
| 2380 | { |
| 2381 | int ret = 0; |
| 2382 | struct bt_trace_is_static_listener_elem *elem; |
| 2383 | |
| 2384 | if (!trace) { |
| 2385 | BT_LOGW_STR("Invalid parameter: trace is NULL."); |
| 2386 | ret = -1; |
| 2387 | goto end; |
| 2388 | } |
| 2389 | |
| 2390 | if (trace->in_remove_listener) { |
| 2391 | BT_LOGW("Cannot call this function during the execution of a remove listener: " |
| 2392 | "addr=%p, name=\"%s\", listener-id=%d", |
| 2393 | trace, bt_trace_get_name(trace), |
| 2394 | listener_id); |
| 2395 | ret = -1; |
| 2396 | goto end; |
| 2397 | } |
| 2398 | |
| 2399 | if (listener_id < 0) { |
| 2400 | BT_LOGW("Invalid listener ID: must be zero or positive: " |
| 2401 | "listener-id=%d", listener_id); |
| 2402 | ret = -1; |
| 2403 | goto end; |
| 2404 | } |
| 2405 | |
| 2406 | if (listener_id >= trace->is_static_listeners->len) { |
| 2407 | BT_LOGW("Invalid parameter: no listener with this listener ID: " |
| 2408 | "addr=%p, name=\"%s\", listener-id=%d", |
| 2409 | trace, bt_trace_get_name(trace), |
| 2410 | listener_id); |
| 2411 | ret = -1; |
| 2412 | goto end; |
| 2413 | } |
| 2414 | |
| 2415 | elem = &g_array_index(trace->is_static_listeners, |
| 2416 | struct bt_trace_is_static_listener_elem, |
| 2417 | listener_id); |
| 2418 | if (!elem->func) { |
| 2419 | BT_LOGW("Invalid parameter: no listener with this listener ID: " |
| 2420 | "addr=%p, name=\"%s\", listener-id=%d", |
| 2421 | trace, bt_trace_get_name(trace), |
| 2422 | listener_id); |
| 2423 | ret = -1; |
| 2424 | goto end; |
| 2425 | } |
| 2426 | |
| 2427 | if (elem->removed) { |
| 2428 | /* Call remove listener */ |
| 2429 | BT_LOGV("Calling remove listener: " |
| 2430 | "trace-addr=%p, trace-name=\"%s\", " |
| 2431 | "listener-id=%d", trace, bt_trace_get_name(trace), |
| 2432 | listener_id); |
| 2433 | trace->in_remove_listener = BT_TRUE; |
| 2434 | elem->removed(trace, elem->data); |
| 2435 | trace->in_remove_listener = BT_FALSE; |
| 2436 | } |
| 2437 | |
| 2438 | elem->func = NULL; |
| 2439 | elem->removed = NULL; |
| 2440 | elem->data = NULL; |
| 2441 | BT_LOGV("Removed \"trace is static\" listener: " |
| 2442 | "trace-addr=%p, trace-name=\"%s\", " |
| 2443 | "listener-id=%d", trace, bt_trace_get_name(trace), |
| 2444 | listener_id); |
| 2445 | |
| 2446 | end: |
| 2447 | return ret; |
| 2448 | } |