| 1 | /* |
| 2 | * Copyright (C) 2020 Francis Deslauriers <francis.deslauriers@efficios.com> |
| 3 | * |
| 4 | * SPDX-License-Identifier: LGPL-2.1-only |
| 5 | * |
| 6 | */ |
| 7 | |
| 8 | #include <assert.h> |
| 9 | #include <string.h> |
| 10 | |
| 11 | #include <common/error.h> |
| 12 | #include <common/macros.h> |
| 13 | #include <common/optional.h> |
| 14 | #include <common/payload.h> |
| 15 | |
| 16 | #include <lttng/lttng.h> |
| 17 | #include <lttng/map/map-internal.h> |
| 18 | |
| 19 | enum lttng_map_status lttng_map_set_name(struct lttng_map *map, |
| 20 | const char *name) |
| 21 | { |
| 22 | char *name_copy = NULL; |
| 23 | enum lttng_map_status status; |
| 24 | |
| 25 | if (!map || !name || strlen(name) == 0) { |
| 26 | status = LTTNG_MAP_STATUS_INVALID; |
| 27 | goto end; |
| 28 | } |
| 29 | |
| 30 | name_copy = strdup(name); |
| 31 | if (!name_copy) { |
| 32 | status = LTTNG_MAP_STATUS_ERROR; |
| 33 | goto end; |
| 34 | } |
| 35 | |
| 36 | free(map->name); |
| 37 | |
| 38 | map->name = name_copy; |
| 39 | name_copy = NULL; |
| 40 | |
| 41 | status = LTTNG_MAP_STATUS_OK; |
| 42 | end: |
| 43 | return status; |
| 44 | } |
| 45 | |
| 46 | enum lttng_map_status lttng_map_get_name(const struct lttng_map *map, |
| 47 | const char **name) |
| 48 | { |
| 49 | enum lttng_map_status status; |
| 50 | |
| 51 | if (!map || !name) { |
| 52 | status = LTTNG_MAP_STATUS_INVALID; |
| 53 | goto end; |
| 54 | } |
| 55 | |
| 56 | if (!map->name) { |
| 57 | status = LTTNG_MAP_STATUS_UNSET; |
| 58 | } |
| 59 | |
| 60 | *name = map->name; |
| 61 | status = LTTNG_MAP_STATUS_OK; |
| 62 | end: |
| 63 | return status; |
| 64 | } |
| 65 | |
| 66 | enum lttng_map_status lttng_map_create(const char *name, |
| 67 | unsigned int dimension_count, |
| 68 | uint64_t *dimension_sizes, |
| 69 | enum lttng_domain_type domain, |
| 70 | enum lttng_buffer_type buffer_type, |
| 71 | enum lttng_map_bitness bitness, |
| 72 | enum lttng_map_boundary_policy boundary_policy, |
| 73 | bool coalesce_hits, |
| 74 | struct lttng_map **map_out) |
| 75 | { |
| 76 | enum lttng_map_status status; |
| 77 | struct lttng_map *map; |
| 78 | |
| 79 | if (dimension_count != 1) { |
| 80 | status = LTTNG_MAP_STATUS_INVALID; |
| 81 | goto end; |
| 82 | } |
| 83 | |
| 84 | map = zmalloc(sizeof(struct lttng_map)); |
| 85 | if (!map) { |
| 86 | status = LTTNG_MAP_STATUS_ERROR; |
| 87 | goto end; |
| 88 | } |
| 89 | |
| 90 | if (name) { |
| 91 | status = lttng_map_set_name(map, name); |
| 92 | if (status != LTTNG_MAP_STATUS_OK) { |
| 93 | goto free_map; |
| 94 | } |
| 95 | } else { |
| 96 | map->name = NULL; |
| 97 | } |
| 98 | |
| 99 | map->dimension_count = dimension_count; |
| 100 | map->dimension_sizes = zmalloc( |
| 101 | sizeof(*map->dimension_sizes) * dimension_count); |
| 102 | if (!map->dimension_sizes) { |
| 103 | status = LTTNG_MAP_STATUS_ERROR; |
| 104 | goto free_name; |
| 105 | } |
| 106 | |
| 107 | memcpy(map->dimension_sizes, dimension_sizes, |
| 108 | sizeof(*map->dimension_sizes) * dimension_count); |
| 109 | |
| 110 | map->domain = domain; |
| 111 | map->buffer_type = buffer_type; |
| 112 | map->bitness = bitness; |
| 113 | map->boundary_policy = boundary_policy; |
| 114 | map->coalesce_hits = coalesce_hits; |
| 115 | |
| 116 | lttng_map_set_is_enabled(map, true); |
| 117 | |
| 118 | urcu_ref_init(&map->ref); |
| 119 | |
| 120 | *map_out = map; |
| 121 | |
| 122 | status = LTTNG_MAP_STATUS_OK; |
| 123 | |
| 124 | goto end; |
| 125 | free_name: |
| 126 | free(map->name); |
| 127 | free_map: |
| 128 | free(map); |
| 129 | end: |
| 130 | return status; |
| 131 | } |
| 132 | |
| 133 | unsigned int lttng_map_get_dimension_count( |
| 134 | const struct lttng_map *map) |
| 135 | { |
| 136 | assert(map); |
| 137 | |
| 138 | return map->dimension_count; |
| 139 | } |
| 140 | |
| 141 | enum lttng_map_status lttng_map_get_dimension_length( |
| 142 | const struct lttng_map *map, unsigned int dimension, |
| 143 | uint64_t *dimension_length) |
| 144 | { |
| 145 | enum lttng_map_status status; |
| 146 | |
| 147 | assert(map); |
| 148 | |
| 149 | if (dimension >= map->dimension_count) { |
| 150 | status = LTTNG_MAP_STATUS_INVALID; |
| 151 | goto end; |
| 152 | } |
| 153 | |
| 154 | *dimension_length = map->dimension_sizes[dimension]; |
| 155 | |
| 156 | status = LTTNG_MAP_STATUS_OK; |
| 157 | end: |
| 158 | return status; |
| 159 | } |
| 160 | |
| 161 | enum lttng_map_bitness lttng_map_get_bitness( |
| 162 | const struct lttng_map *map) |
| 163 | { |
| 164 | assert(map); |
| 165 | |
| 166 | return map->bitness; |
| 167 | } |
| 168 | |
| 169 | enum lttng_domain_type lttng_map_get_domain( |
| 170 | const struct lttng_map *map) |
| 171 | { |
| 172 | assert(map); |
| 173 | |
| 174 | return map->domain; |
| 175 | } |
| 176 | |
| 177 | enum lttng_buffer_type lttng_map_get_buffer_type( |
| 178 | const struct lttng_map *map) |
| 179 | { |
| 180 | assert(map); |
| 181 | |
| 182 | return map->buffer_type; |
| 183 | } |
| 184 | |
| 185 | enum lttng_map_boundary_policy lttng_map_get_boundary_policy( |
| 186 | const struct lttng_map *map) |
| 187 | { |
| 188 | assert(map); |
| 189 | |
| 190 | return map->boundary_policy; |
| 191 | } |
| 192 | |
| 193 | bool lttng_map_get_coalesce_hits(const struct lttng_map *map) |
| 194 | { |
| 195 | assert(map); |
| 196 | |
| 197 | return map->coalesce_hits; |
| 198 | } |
| 199 | |
| 200 | LTTNG_HIDDEN |
| 201 | int lttng_map_serialize(const struct lttng_map *map, |
| 202 | struct lttng_payload *payload) |
| 203 | { |
| 204 | int ret; |
| 205 | size_t header_offset, size_before_payload, size_name; |
| 206 | struct lttng_map_comm map_comm = {}; |
| 207 | struct lttng_map_comm *header; |
| 208 | |
| 209 | if (map->name != NULL) { |
| 210 | size_name = strlen(map->name) + 1; |
| 211 | } else { |
| 212 | size_name = 0; |
| 213 | } |
| 214 | |
| 215 | map_comm.name_length = size_name; |
| 216 | map_comm.is_enabled = LTTNG_OPTIONAL_GET(map->is_enabled); |
| 217 | map_comm.bitness = map->bitness; |
| 218 | map_comm.domain = map->domain; |
| 219 | map_comm.buffer_type = map->buffer_type; |
| 220 | map_comm.boundary_policy = map->boundary_policy; |
| 221 | map_comm.dimension_count = map->dimension_count; |
| 222 | map_comm.coalesce_hits = map->coalesce_hits; |
| 223 | |
| 224 | header_offset = payload->buffer.size; |
| 225 | |
| 226 | ret = lttng_dynamic_buffer_append(&payload->buffer, &map_comm, |
| 227 | sizeof(map_comm)); |
| 228 | if (ret) { |
| 229 | goto end; |
| 230 | } |
| 231 | |
| 232 | size_before_payload = payload->buffer.size; |
| 233 | |
| 234 | /* map name */ |
| 235 | ret = lttng_dynamic_buffer_append( |
| 236 | &payload->buffer, map->name, size_name); |
| 237 | if (ret) { |
| 238 | goto end; |
| 239 | } |
| 240 | |
| 241 | ret = lttng_dynamic_buffer_append( |
| 242 | &payload->buffer, map->dimension_sizes, |
| 243 | sizeof(*map->dimension_sizes) * map->dimension_count); |
| 244 | if (ret) { |
| 245 | goto end; |
| 246 | } |
| 247 | |
| 248 | /* Update payload size. */ |
| 249 | header = (typeof(header)) (payload->buffer.data + header_offset); |
| 250 | header->length = payload->buffer.size - size_before_payload; |
| 251 | |
| 252 | end: |
| 253 | return ret; |
| 254 | } |
| 255 | |
| 256 | LTTNG_HIDDEN |
| 257 | ssize_t lttng_map_create_from_payload( |
| 258 | struct lttng_payload_view *src_view, |
| 259 | struct lttng_map **map) |
| 260 | { |
| 261 | ssize_t ret, offset = 0; |
| 262 | const struct lttng_map_comm *map_comm; |
| 263 | enum lttng_map_status status; |
| 264 | unsigned int dimension_count; |
| 265 | uint64_t *dimension_sizes = NULL; |
| 266 | bool coalesce_hits; |
| 267 | const char *name = NULL; |
| 268 | enum lttng_domain_type domain; |
| 269 | enum lttng_buffer_type buffer_type; |
| 270 | enum lttng_map_bitness bitness; |
| 271 | enum lttng_map_boundary_policy boundary_policy; |
| 272 | |
| 273 | if (!src_view || !map) { |
| 274 | ret = -1; |
| 275 | goto end; |
| 276 | } |
| 277 | |
| 278 | map_comm = (typeof(map_comm)) src_view->buffer.data; |
| 279 | offset += sizeof(*map_comm); |
| 280 | |
| 281 | domain = map_comm->domain; |
| 282 | buffer_type = map_comm->buffer_type; |
| 283 | bitness = map_comm->bitness; |
| 284 | boundary_policy = map_comm->boundary_policy; |
| 285 | dimension_count = map_comm->dimension_count; |
| 286 | coalesce_hits = map_comm->coalesce_hits; |
| 287 | |
| 288 | if (map_comm->name_length != 0) { |
| 289 | struct lttng_payload_view name_view = |
| 290 | lttng_payload_view_from_view( |
| 291 | src_view, offset, |
| 292 | map_comm->name_length); |
| 293 | |
| 294 | name = name_view.buffer.data; |
| 295 | if (!lttng_buffer_view_contains_string(&name_view.buffer, |
| 296 | name, map_comm->name_length)){ |
| 297 | ret = -1; |
| 298 | goto end; |
| 299 | } |
| 300 | offset += map_comm->name_length; |
| 301 | } |
| 302 | |
| 303 | size_t map_dim_sizes_len = sizeof(*(*map)->dimension_sizes) * dimension_count; |
| 304 | |
| 305 | struct lttng_payload_view dimension_sizes_view = |
| 306 | lttng_payload_view_from_view(src_view, offset, |
| 307 | map_dim_sizes_len); |
| 308 | |
| 309 | dimension_sizes = zmalloc(map_dim_sizes_len); |
| 310 | if (!dimension_sizes) { |
| 311 | ret = -1; |
| 312 | goto end; |
| 313 | } |
| 314 | |
| 315 | memcpy(dimension_sizes, dimension_sizes_view.buffer.data, |
| 316 | map_dim_sizes_len); |
| 317 | |
| 318 | offset += map_dim_sizes_len; |
| 319 | |
| 320 | status = lttng_map_create(name, dimension_count, |
| 321 | dimension_sizes, domain, buffer_type, bitness, |
| 322 | boundary_policy, coalesce_hits, map); |
| 323 | if (status != LTTNG_MAP_STATUS_OK) { |
| 324 | ret = -1; |
| 325 | goto end; |
| 326 | } |
| 327 | |
| 328 | lttng_map_set_is_enabled(*map, map_comm->is_enabled); |
| 329 | |
| 330 | ret = offset; |
| 331 | |
| 332 | end: |
| 333 | free(dimension_sizes); |
| 334 | return ret; |
| 335 | } |
| 336 | |
| 337 | LTTNG_HIDDEN |
| 338 | void lttng_map_set_is_enabled(struct lttng_map *map, bool enabled) |
| 339 | { |
| 340 | assert(map); |
| 341 | |
| 342 | LTTNG_OPTIONAL_SET(&map->is_enabled, enabled); |
| 343 | } |
| 344 | |
| 345 | int lttng_map_get_is_enabled(const struct lttng_map *map) |
| 346 | { |
| 347 | assert(map); |
| 348 | return (int) LTTNG_OPTIONAL_GET(map->is_enabled); |
| 349 | } |
| 350 | |
| 351 | LTTNG_HIDDEN |
| 352 | void lttng_map_get(struct lttng_map *map) |
| 353 | { |
| 354 | urcu_ref_get(&map->ref); |
| 355 | } |
| 356 | |
| 357 | static void map_destroy_ref(struct urcu_ref *ref) |
| 358 | { |
| 359 | struct lttng_map *map = container_of(ref, struct lttng_map, ref); |
| 360 | |
| 361 | free(map->dimension_sizes); |
| 362 | free(map->name); |
| 363 | free(map); |
| 364 | |
| 365 | } |
| 366 | |
| 367 | LTTNG_HIDDEN |
| 368 | void lttng_map_put(struct lttng_map *map) |
| 369 | { |
| 370 | if (!map) { |
| 371 | return; |
| 372 | } |
| 373 | |
| 374 | urcu_ref_put(&map->ref , map_destroy_ref); |
| 375 | } |
| 376 | |
| 377 | |
| 378 | void lttng_map_destroy(struct lttng_map *map) |
| 379 | { |
| 380 | lttng_map_put(map); |
| 381 | } |
| 382 | |
| 383 | static void delete_map_array_element(void *ptr) |
| 384 | { |
| 385 | struct lttng_map *map = ptr; |
| 386 | |
| 387 | lttng_map_put(map); |
| 388 | } |
| 389 | |
| 390 | LTTNG_HIDDEN |
| 391 | struct lttng_map_list *lttng_map_list_create(void) |
| 392 | { |
| 393 | struct lttng_map_list *map_list = NULL; |
| 394 | |
| 395 | map_list = zmalloc(sizeof(*map_list)); |
| 396 | if (!map_list) { |
| 397 | goto end; |
| 398 | } |
| 399 | |
| 400 | lttng_dynamic_pointer_array_init(&map_list->array, |
| 401 | delete_map_array_element); |
| 402 | |
| 403 | end: |
| 404 | return map_list; |
| 405 | } |
| 406 | |
| 407 | LTTNG_HIDDEN |
| 408 | enum lttng_map_status lttng_map_list_add(struct lttng_map_list *map_list, |
| 409 | struct lttng_map *map) |
| 410 | { |
| 411 | enum lttng_map_status status; |
| 412 | int ret; |
| 413 | |
| 414 | assert(map_list); |
| 415 | assert(map); |
| 416 | |
| 417 | lttng_map_get(map); |
| 418 | |
| 419 | ret = lttng_dynamic_pointer_array_add_pointer(&map_list->array, map); |
| 420 | if (ret) { |
| 421 | lttng_map_put(map); |
| 422 | status = LTTNG_MAP_STATUS_ERROR; |
| 423 | goto end; |
| 424 | } |
| 425 | status = LTTNG_MAP_STATUS_OK; |
| 426 | end: |
| 427 | return status; |
| 428 | |
| 429 | } |
| 430 | |
| 431 | LTTNG_HIDDEN |
| 432 | ssize_t lttng_map_list_create_from_payload(struct lttng_payload_view *src_view, |
| 433 | struct lttng_map_list **map_list) |
| 434 | { |
| 435 | unsigned int i; |
| 436 | ssize_t ret, offset = 0; |
| 437 | const struct lttng_map_list_comm *map_list_comm; |
| 438 | struct lttng_map_list *local_map_list = NULL; |
| 439 | |
| 440 | map_list_comm = (typeof(map_list_comm)) src_view->buffer.data; |
| 441 | offset += sizeof(*map_list_comm); |
| 442 | |
| 443 | local_map_list = lttng_map_list_create(); |
| 444 | if (!local_map_list) { |
| 445 | ret = -1; |
| 446 | goto end; |
| 447 | } |
| 448 | |
| 449 | for (i = 0; i < map_list_comm->count; i++) { |
| 450 | struct lttng_map *map = NULL; |
| 451 | struct lttng_payload_view map_view = |
| 452 | lttng_payload_view_from_view(src_view, offset, -1); |
| 453 | ssize_t map_size; |
| 454 | |
| 455 | map_size = lttng_map_create_from_payload(&map_view, &map); |
| 456 | if (map_size < 0) { |
| 457 | ret = map_size; |
| 458 | goto end; |
| 459 | } |
| 460 | |
| 461 | /* Transfer ownership of the map to the collection. */ |
| 462 | ret = lttng_map_list_add(local_map_list, map); |
| 463 | lttng_map_put(map); |
| 464 | if (ret < 0) { |
| 465 | ret = -1; |
| 466 | goto end; |
| 467 | } |
| 468 | |
| 469 | offset += map_size; |
| 470 | } |
| 471 | |
| 472 | /* Pass ownership to caller. */ |
| 473 | *map_list = local_map_list; |
| 474 | local_map_list = NULL; |
| 475 | |
| 476 | ret = offset; |
| 477 | end: |
| 478 | lttng_map_list_destroy(local_map_list); |
| 479 | return ret; |
| 480 | } |
| 481 | |
| 482 | LTTNG_HIDDEN |
| 483 | int lttng_map_list_serialize(const struct lttng_map_list *map_list, |
| 484 | struct lttng_payload *payload) |
| 485 | { |
| 486 | int ret; |
| 487 | unsigned int i, count; |
| 488 | enum lttng_map_status status; |
| 489 | struct lttng_map_list_comm map_list_comm = {}; |
| 490 | |
| 491 | status = lttng_map_list_get_count(map_list, &count); |
| 492 | if (status != LTTNG_MAP_STATUS_OK) { |
| 493 | ret = LTTNG_ERR_INVALID; |
| 494 | goto end; |
| 495 | } |
| 496 | |
| 497 | map_list_comm.count = count; |
| 498 | ret = lttng_dynamic_buffer_append(&payload->buffer, &map_list_comm, |
| 499 | sizeof(map_list_comm)); |
| 500 | if (ret) { |
| 501 | goto end; |
| 502 | } |
| 503 | for (i = 0; i < count; i++) { |
| 504 | const struct lttng_map *map = |
| 505 | lttng_map_list_get_at_index(map_list, i); |
| 506 | |
| 507 | assert(map); |
| 508 | |
| 509 | ret = lttng_map_serialize(map, payload); |
| 510 | if (ret) { |
| 511 | goto end; |
| 512 | } |
| 513 | } |
| 514 | |
| 515 | end: |
| 516 | return ret; |
| 517 | } |
| 518 | |
| 519 | const struct lttng_map *lttng_map_list_get_at_index( |
| 520 | const struct lttng_map_list *map_list, unsigned int index) |
| 521 | { |
| 522 | struct lttng_map *map = NULL; |
| 523 | |
| 524 | assert(map_list); |
| 525 | if (index >= lttng_dynamic_pointer_array_get_count(&map_list->array)) { |
| 526 | goto end; |
| 527 | } |
| 528 | |
| 529 | map = (struct lttng_map *) |
| 530 | lttng_dynamic_pointer_array_get_pointer( |
| 531 | &map_list->array, index); |
| 532 | end: |
| 533 | return map; |
| 534 | } |
| 535 | |
| 536 | enum lttng_map_status lttng_map_list_get_count( |
| 537 | const struct lttng_map_list *map_list, unsigned int *count) |
| 538 | { |
| 539 | enum lttng_map_status status = LTTNG_MAP_STATUS_OK; |
| 540 | |
| 541 | if (!map_list || !count) { |
| 542 | status = LTTNG_MAP_STATUS_INVALID; |
| 543 | goto end; |
| 544 | } |
| 545 | |
| 546 | *count = lttng_dynamic_pointer_array_get_count(&map_list->array); |
| 547 | status = LTTNG_MAP_STATUS_OK; |
| 548 | end: |
| 549 | return status; |
| 550 | } |
| 551 | |
| 552 | void lttng_map_list_destroy(struct lttng_map_list *map_list) |
| 553 | { |
| 554 | if (!map_list) { |
| 555 | return; |
| 556 | } |
| 557 | |
| 558 | lttng_dynamic_pointer_array_reset(&map_list->array); |
| 559 | free(map_list); |
| 560 | } |
| 561 | |
| 562 | struct lttng_map_key_value_pair *lttng_map_key_value_pair_create(const char *key, |
| 563 | int64_t value) |
| 564 | { |
| 565 | struct lttng_map_key_value_pair *key_value; |
| 566 | |
| 567 | key_value = zmalloc(sizeof(struct lttng_map_key_value_pair)); |
| 568 | if (!key_value) { |
| 569 | goto end; |
| 570 | } |
| 571 | |
| 572 | key_value->key = strdup(key); |
| 573 | if (!key_value->key) { |
| 574 | free(key_value); |
| 575 | key_value = NULL; |
| 576 | goto end; |
| 577 | } |
| 578 | key_value->value = value; |
| 579 | |
| 580 | end: |
| 581 | return key_value; |
| 582 | } |
| 583 | |
| 584 | enum lttng_map_status lttng_map_key_value_pair_get_key( |
| 585 | const struct lttng_map_key_value_pair *key_value, |
| 586 | const char **key) |
| 587 | { |
| 588 | assert(key_value); |
| 589 | assert(key_value->key); |
| 590 | |
| 591 | *key = key_value->key; |
| 592 | return LTTNG_MAP_STATUS_OK; |
| 593 | } |
| 594 | |
| 595 | enum lttng_map_status lttng_map_key_value_pair_get_value( |
| 596 | const struct lttng_map_key_value_pair *key_value, |
| 597 | int64_t *value) |
| 598 | { |
| 599 | assert(key_value); |
| 600 | *value = key_value->value; |
| 601 | return LTTNG_MAP_STATUS_OK; |
| 602 | } |
| 603 | |
| 604 | LTTNG_HIDDEN |
| 605 | void lttng_map_key_value_pair_set_has_overflowed( |
| 606 | struct lttng_map_key_value_pair *key_value) |
| 607 | { |
| 608 | assert(key_value); |
| 609 | |
| 610 | key_value->has_overflowed = true; |
| 611 | } |
| 612 | |
| 613 | LTTNG_HIDDEN |
| 614 | void lttng_map_key_value_pair_set_has_underflowed( |
| 615 | struct lttng_map_key_value_pair *key_value) |
| 616 | { |
| 617 | assert(key_value); |
| 618 | |
| 619 | key_value->has_underflowed = true; |
| 620 | } |
| 621 | |
| 622 | bool lttng_map_key_value_pair_get_has_overflowed( |
| 623 | const struct lttng_map_key_value_pair *key_value) |
| 624 | { |
| 625 | assert(key_value); |
| 626 | |
| 627 | return key_value->has_overflowed; |
| 628 | } |
| 629 | |
| 630 | bool lttng_map_key_value_pair_get_has_underflowed( |
| 631 | const struct lttng_map_key_value_pair *key_value) |
| 632 | { |
| 633 | assert(key_value); |
| 634 | |
| 635 | return key_value->has_underflowed; |
| 636 | } |
| 637 | |
| 638 | LTTNG_HIDDEN |
| 639 | ssize_t lttng_map_key_value_pair_create_from_payload( |
| 640 | struct lttng_payload_view *src_view, |
| 641 | struct lttng_map_key_value_pair **key_value) |
| 642 | { |
| 643 | const struct lttng_map_key_value_pair_comm *kv_pair_comm; |
| 644 | struct lttng_map_key_value_pair *kv_pair; |
| 645 | ssize_t ret, offset = 0; |
| 646 | const char *key; |
| 647 | int64_t value; |
| 648 | |
| 649 | if (!src_view || !key_value) { |
| 650 | ret = -1; |
| 651 | goto end; |
| 652 | } |
| 653 | |
| 654 | kv_pair_comm = (typeof(kv_pair_comm)) src_view->buffer.data; |
| 655 | offset += sizeof(*kv_pair_comm); |
| 656 | |
| 657 | if (kv_pair_comm->key_length == 0) { |
| 658 | ret = -1; |
| 659 | goto end; |
| 660 | } |
| 661 | |
| 662 | value = kv_pair_comm->value; |
| 663 | |
| 664 | struct lttng_payload_view key_view = |
| 665 | lttng_payload_view_from_view(src_view, offset, |
| 666 | kv_pair_comm->key_length); |
| 667 | key = key_view.buffer.data; |
| 668 | if (!lttng_buffer_view_contains_string(&key_view.buffer, |
| 669 | key, kv_pair_comm->key_length)) { |
| 670 | ret = -1; |
| 671 | goto end; |
| 672 | } |
| 673 | |
| 674 | offset += kv_pair_comm->key_length; |
| 675 | |
| 676 | kv_pair = lttng_map_key_value_pair_create(key, value); |
| 677 | if (!kv_pair) { |
| 678 | ret = -1; |
| 679 | goto end; |
| 680 | } |
| 681 | |
| 682 | kv_pair->has_overflowed = kv_pair_comm->has_overflowed; |
| 683 | kv_pair->has_underflowed = kv_pair_comm->has_underflowed; |
| 684 | |
| 685 | *key_value = kv_pair; |
| 686 | |
| 687 | ret = offset; |
| 688 | |
| 689 | end: |
| 690 | return ret; |
| 691 | } |
| 692 | |
| 693 | LTTNG_HIDDEN |
| 694 | int lttng_map_key_value_pair_serialize( |
| 695 | const struct lttng_map_key_value_pair *key_value, |
| 696 | struct lttng_payload *payload) |
| 697 | { |
| 698 | int ret; |
| 699 | size_t key_len; |
| 700 | struct lttng_map_key_value_pair_comm kv_pair_comm = {0}; |
| 701 | |
| 702 | assert(key_value); |
| 703 | assert(key_value->key); |
| 704 | |
| 705 | key_len = strlen(key_value->key) + 1; |
| 706 | |
| 707 | kv_pair_comm.key_length = key_len; |
| 708 | kv_pair_comm.value = key_value->value; |
| 709 | kv_pair_comm.has_overflowed = key_value->has_overflowed; |
| 710 | kv_pair_comm.has_underflowed = key_value->has_underflowed; |
| 711 | |
| 712 | ret = lttng_dynamic_buffer_append(&payload->buffer, &kv_pair_comm, |
| 713 | sizeof(kv_pair_comm)); |
| 714 | if (ret) { |
| 715 | goto end; |
| 716 | } |
| 717 | |
| 718 | /* Append key.*/ |
| 719 | ret = lttng_dynamic_buffer_append( |
| 720 | &payload->buffer, key_value->key, key_len); |
| 721 | if (ret) { |
| 722 | goto end; |
| 723 | } |
| 724 | |
| 725 | end: |
| 726 | return ret; |
| 727 | } |
| 728 | |
| 729 | void lttng_map_key_value_pair_destroy(struct lttng_map_key_value_pair *key_value) |
| 730 | { |
| 731 | if (!key_value) { |
| 732 | return; |
| 733 | } |
| 734 | |
| 735 | free(key_value->key); |
| 736 | free(key_value); |
| 737 | } |
| 738 | |
| 739 | static void delete_map_key_value_pair_array_element(void *ptr) |
| 740 | { |
| 741 | struct lttng_map_key_value_pair *key_value = ptr; |
| 742 | lttng_map_key_value_pair_destroy(key_value); |
| 743 | } |
| 744 | |
| 745 | LTTNG_HIDDEN |
| 746 | struct lttng_map_key_value_pair_list *lttng_map_key_value_pair_list_create( |
| 747 | enum lttng_map_key_value_pair_list_type type, |
| 748 | bool summed_all_cpus) |
| 749 | { |
| 750 | struct lttng_map_key_value_pair_list *map_key_values = NULL; |
| 751 | |
| 752 | map_key_values = zmalloc(sizeof(*map_key_values)); |
| 753 | if (!map_key_values) { |
| 754 | goto end; |
| 755 | } |
| 756 | |
| 757 | map_key_values->type = type; |
| 758 | map_key_values->summed_all_cpus = summed_all_cpus; |
| 759 | |
| 760 | lttng_dynamic_pointer_array_init(&map_key_values->array, |
| 761 | delete_map_key_value_pair_array_element); |
| 762 | |
| 763 | end: |
| 764 | return map_key_values; |
| 765 | } |
| 766 | |
| 767 | LTTNG_HIDDEN |
| 768 | enum lttng_map_status lttng_map_key_value_pair_list_set_identifier( |
| 769 | struct lttng_map_key_value_pair_list *kv_pair_list, |
| 770 | uint64_t identifier) |
| 771 | { |
| 772 | enum lttng_map_status status; |
| 773 | assert(kv_pair_list); |
| 774 | |
| 775 | switch (kv_pair_list->type) { |
| 776 | case LTTNG_MAP_KEY_VALUE_PAIR_LIST_TYPE_UST_PER_PID: |
| 777 | case LTTNG_MAP_KEY_VALUE_PAIR_LIST_TYPE_UST_PER_UID: |
| 778 | kv_pair_list->id = identifier; |
| 779 | status = LTTNG_MAP_STATUS_OK; |
| 780 | break; |
| 781 | case LTTNG_MAP_KEY_VALUE_PAIR_LIST_TYPE_UST_PER_PID_AGGREGATED: |
| 782 | ERR("Cannot set an identifier for an UST per-pid aggregation key value pair list"); |
| 783 | status = LTTNG_MAP_STATUS_INVALID; |
| 784 | break; |
| 785 | case LTTNG_MAP_KEY_VALUE_PAIR_LIST_TYPE_KERNEL: |
| 786 | ERR("Cannot set an identifier for a kernel key value pair list"); |
| 787 | status = LTTNG_MAP_STATUS_INVALID; |
| 788 | break; |
| 789 | default: |
| 790 | ERR("Unknown key value par list type %d", kv_pair_list->type); |
| 791 | abort(); |
| 792 | } |
| 793 | |
| 794 | return status; |
| 795 | } |
| 796 | |
| 797 | bool lttng_map_key_value_pair_list_get_summed_all_cpu( |
| 798 | const struct lttng_map_key_value_pair_list *kv_pair_list) |
| 799 | { |
| 800 | assert(kv_pair_list); |
| 801 | |
| 802 | return kv_pair_list->summed_all_cpus; |
| 803 | } |
| 804 | |
| 805 | LTTNG_HIDDEN |
| 806 | enum lttng_map_status lttng_map_key_value_pair_list_set_cpu( |
| 807 | struct lttng_map_key_value_pair_list *kv_pair_list, |
| 808 | uint64_t cpu) |
| 809 | { |
| 810 | assert(kv_pair_list); |
| 811 | |
| 812 | kv_pair_list->cpu = cpu; |
| 813 | |
| 814 | return LTTNG_MAP_STATUS_OK; |
| 815 | } |
| 816 | |
| 817 | uint64_t lttng_map_key_value_pair_list_get_cpu( |
| 818 | const struct lttng_map_key_value_pair_list *kv_pair_list) |
| 819 | { |
| 820 | assert(kv_pair_list); |
| 821 | |
| 822 | return kv_pair_list->cpu; |
| 823 | } |
| 824 | |
| 825 | enum lttng_map_key_value_pair_list_type lttng_map_key_value_pair_list_get_type( |
| 826 | const struct lttng_map_key_value_pair_list *kv_pair_list) |
| 827 | { |
| 828 | assert(kv_pair_list); |
| 829 | |
| 830 | return kv_pair_list->type; |
| 831 | } |
| 832 | |
| 833 | LTTNG_HIDDEN |
| 834 | enum lttng_map_status lttng_map_key_value_pair_list_append_key_value( |
| 835 | struct lttng_map_key_value_pair_list *kv_pair_list, |
| 836 | struct lttng_map_key_value_pair *key_value) |
| 837 | { |
| 838 | int ret; |
| 839 | enum lttng_map_status status; |
| 840 | |
| 841 | assert(kv_pair_list); |
| 842 | assert(key_value); |
| 843 | |
| 844 | ret = lttng_dynamic_pointer_array_add_pointer(&kv_pair_list->array, |
| 845 | key_value); |
| 846 | if (ret) { |
| 847 | status = LTTNG_MAP_STATUS_ERROR; |
| 848 | goto end; |
| 849 | } |
| 850 | |
| 851 | status = LTTNG_MAP_STATUS_OK; |
| 852 | |
| 853 | end: |
| 854 | return status; |
| 855 | } |
| 856 | |
| 857 | uint64_t lttng_map_key_value_pair_list_get_identifer( |
| 858 | const struct lttng_map_key_value_pair_list *kv_pair_list) |
| 859 | { |
| 860 | assert(kv_pair_list); |
| 861 | |
| 862 | switch (kv_pair_list->type) { |
| 863 | case LTTNG_MAP_KEY_VALUE_PAIR_LIST_TYPE_UST_PER_PID: |
| 864 | case LTTNG_MAP_KEY_VALUE_PAIR_LIST_TYPE_UST_PER_UID: |
| 865 | break; |
| 866 | case LTTNG_MAP_KEY_VALUE_PAIR_LIST_TYPE_UST_PER_PID_AGGREGATED: |
| 867 | ERR("No identifier for UST per-pid aggregation key value pair lists"); |
| 868 | abort(); |
| 869 | break; |
| 870 | case LTTNG_MAP_KEY_VALUE_PAIR_LIST_TYPE_KERNEL: |
| 871 | ERR("No identifier for kernel key value pair lists"); |
| 872 | abort(); |
| 873 | break; |
| 874 | default: |
| 875 | ERR("Unknown key value par list type %d", kv_pair_list->type); |
| 876 | abort(); |
| 877 | } |
| 878 | |
| 879 | return kv_pair_list->id; |
| 880 | } |
| 881 | |
| 882 | const struct lttng_map_key_value_pair *lttng_map_key_value_pair_list_get_at_index( |
| 883 | const struct lttng_map_key_value_pair_list *kv_pair_list, |
| 884 | unsigned int index) |
| 885 | { |
| 886 | struct lttng_map_key_value_pair *key_value = NULL; |
| 887 | |
| 888 | assert(kv_pair_list); |
| 889 | if (index >= lttng_dynamic_pointer_array_get_count(&kv_pair_list->array)) { |
| 890 | goto end; |
| 891 | } |
| 892 | |
| 893 | key_value = (struct lttng_map_key_value_pair *) |
| 894 | lttng_dynamic_pointer_array_get_pointer( |
| 895 | &kv_pair_list->array, index); |
| 896 | end: |
| 897 | return key_value; |
| 898 | } |
| 899 | |
| 900 | enum lttng_map_status lttng_map_key_value_pair_list_get_count( |
| 901 | const struct lttng_map_key_value_pair_list *kv_pair_list, |
| 902 | unsigned int *count) |
| 903 | { |
| 904 | enum lttng_map_status status; |
| 905 | |
| 906 | if (!kv_pair_list || !count) { |
| 907 | status = LTTNG_MAP_STATUS_INVALID;; |
| 908 | goto end; |
| 909 | } |
| 910 | |
| 911 | *count = lttng_dynamic_pointer_array_get_count(&kv_pair_list->array); |
| 912 | |
| 913 | status = LTTNG_MAP_STATUS_OK; |
| 914 | end: |
| 915 | return status; |
| 916 | } |
| 917 | |
| 918 | void lttng_map_key_value_pair_list_destroy(struct lttng_map_key_value_pair_list *kv_pair_list) |
| 919 | { |
| 920 | if (!kv_pair_list) { |
| 921 | return; |
| 922 | } |
| 923 | |
| 924 | lttng_dynamic_pointer_array_reset(&kv_pair_list->array); |
| 925 | free(kv_pair_list); |
| 926 | } |
| 927 | |
| 928 | int lttng_map_key_value_pair_list_serialize( |
| 929 | const struct lttng_map_key_value_pair_list *kv_pair_list, |
| 930 | struct lttng_payload *payload) |
| 931 | { |
| 932 | int ret; |
| 933 | unsigned int i, count; |
| 934 | enum lttng_map_status status; |
| 935 | struct lttng_map_key_value_pair_list_comm kv_pair_list_comm = {}; |
| 936 | |
| 937 | kv_pair_list_comm.id = kv_pair_list->id; |
| 938 | kv_pair_list_comm.cpu = kv_pair_list->cpu; |
| 939 | kv_pair_list_comm.type = (uint8_t) kv_pair_list->type; |
| 940 | kv_pair_list_comm.summed_all_cpus = (uint8_t) kv_pair_list->summed_all_cpus; |
| 941 | |
| 942 | status = lttng_map_key_value_pair_list_get_count(kv_pair_list, &count); |
| 943 | if (status != LTTNG_MAP_STATUS_OK) { |
| 944 | ret = LTTNG_ERR_INVALID; |
| 945 | goto end; |
| 946 | } |
| 947 | |
| 948 | kv_pair_list_comm.count = count; |
| 949 | ret = lttng_dynamic_buffer_append(&payload->buffer, &kv_pair_list_comm, |
| 950 | sizeof(kv_pair_list_comm)); |
| 951 | if (ret) { |
| 952 | goto end; |
| 953 | } |
| 954 | for (i = 0; i < count; i++) { |
| 955 | const struct lttng_map_key_value_pair *kv_pair = |
| 956 | lttng_map_key_value_pair_list_get_at_index(kv_pair_list, i); |
| 957 | |
| 958 | assert(kv_pair); |
| 959 | |
| 960 | ret = lttng_map_key_value_pair_serialize(kv_pair, payload); |
| 961 | if (ret) { |
| 962 | goto end; |
| 963 | } |
| 964 | } |
| 965 | |
| 966 | end: |
| 967 | return ret; |
| 968 | } |
| 969 | |
| 970 | LTTNG_HIDDEN |
| 971 | ssize_t lttng_map_key_value_pair_list_create_from_payload( |
| 972 | struct lttng_payload_view *src_view, |
| 973 | struct lttng_map_key_value_pair_list **kv_pair_list) |
| 974 | { |
| 975 | ssize_t ret, offset = 0; |
| 976 | unsigned int i; |
| 977 | enum lttng_map_status status; |
| 978 | const struct lttng_map_key_value_pair_list_comm *kv_pair_list_comm; |
| 979 | struct lttng_map_key_value_pair_list *local_key_values = NULL; |
| 980 | |
| 981 | kv_pair_list_comm = (typeof(kv_pair_list_comm)) src_view->buffer.data; |
| 982 | offset += sizeof(*kv_pair_list_comm); |
| 983 | |
| 984 | local_key_values = lttng_map_key_value_pair_list_create( |
| 985 | kv_pair_list_comm->type, kv_pair_list_comm->summed_all_cpus); |
| 986 | if (!local_key_values) { |
| 987 | ret = -1; |
| 988 | goto end; |
| 989 | } |
| 990 | |
| 991 | local_key_values->cpu = kv_pair_list_comm->cpu; |
| 992 | |
| 993 | switch (lttng_map_key_value_pair_list_get_type(local_key_values)) { |
| 994 | case LTTNG_MAP_KEY_VALUE_PAIR_LIST_TYPE_UST_PER_PID: |
| 995 | case LTTNG_MAP_KEY_VALUE_PAIR_LIST_TYPE_UST_PER_UID: |
| 996 | status = lttng_map_key_value_pair_list_set_identifier(local_key_values, |
| 997 | kv_pair_list_comm->id); |
| 998 | if (status != LTTNG_MAP_STATUS_OK) { |
| 999 | ret = -1; |
| 1000 | goto end; |
| 1001 | } |
| 1002 | break; |
| 1003 | default: |
| 1004 | break; |
| 1005 | } |
| 1006 | |
| 1007 | for (i = 0; i < kv_pair_list_comm->count; i++) { |
| 1008 | struct lttng_map_key_value_pair *kv_pair = NULL; |
| 1009 | struct lttng_payload_view kv_view = |
| 1010 | lttng_payload_view_from_view(src_view, offset, -1); |
| 1011 | ssize_t kv_size; |
| 1012 | |
| 1013 | kv_size = lttng_map_key_value_pair_create_from_payload( |
| 1014 | &kv_view, &kv_pair); |
| 1015 | if (kv_size < 0) { |
| 1016 | ret = kv_size; |
| 1017 | goto end; |
| 1018 | } |
| 1019 | |
| 1020 | /* Transfer ownership of the key-value to the collection. */ |
| 1021 | status = lttng_map_key_value_pair_list_append_key_value(local_key_values, |
| 1022 | kv_pair); |
| 1023 | if (status != LTTNG_MAP_STATUS_OK) { |
| 1024 | ret = -1; |
| 1025 | goto end; |
| 1026 | } |
| 1027 | |
| 1028 | offset += kv_size; |
| 1029 | } |
| 1030 | |
| 1031 | /* Pass ownership to caller. */ |
| 1032 | *kv_pair_list = local_key_values; |
| 1033 | local_key_values = NULL; |
| 1034 | |
| 1035 | ret = offset; |
| 1036 | end: |
| 1037 | lttng_map_key_value_pair_list_destroy(local_key_values); |
| 1038 | return ret; |
| 1039 | } |
| 1040 | |
| 1041 | static void delete_map_key_value_pair_list_array_element(void *ptr) |
| 1042 | { |
| 1043 | struct lttng_map_key_value_pair_list *kv_list = ptr; |
| 1044 | lttng_map_key_value_pair_list_destroy(kv_list); |
| 1045 | } |
| 1046 | |
| 1047 | LTTNG_HIDDEN |
| 1048 | struct lttng_map_content *lttng_map_content_create( |
| 1049 | enum lttng_buffer_type type) |
| 1050 | { |
| 1051 | struct lttng_map_content *map_content = NULL; |
| 1052 | |
| 1053 | map_content = zmalloc(sizeof(*map_content)); |
| 1054 | if (!map_content) { |
| 1055 | goto end; |
| 1056 | } |
| 1057 | |
| 1058 | map_content->type = type; |
| 1059 | |
| 1060 | lttng_dynamic_pointer_array_init(&map_content->array, |
| 1061 | delete_map_key_value_pair_list_array_element); |
| 1062 | |
| 1063 | end: |
| 1064 | return map_content; |
| 1065 | } |
| 1066 | |
| 1067 | enum lttng_map_status lttng_map_content_get_count( |
| 1068 | const struct lttng_map_content *map_content, |
| 1069 | unsigned int *count) |
| 1070 | { |
| 1071 | enum lttng_map_status status = LTTNG_MAP_STATUS_OK; |
| 1072 | |
| 1073 | if (!map_content || !count) { |
| 1074 | status = LTTNG_MAP_STATUS_INVALID; |
| 1075 | goto end; |
| 1076 | } |
| 1077 | |
| 1078 | *count = lttng_dynamic_pointer_array_get_count(&map_content->array); |
| 1079 | status = LTTNG_MAP_STATUS_OK; |
| 1080 | end: |
| 1081 | return status; |
| 1082 | } |
| 1083 | |
| 1084 | enum lttng_buffer_type lttng_map_content_get_buffer_type( |
| 1085 | const struct lttng_map_content *map_content) |
| 1086 | { |
| 1087 | assert(map_content); |
| 1088 | |
| 1089 | return map_content->type; |
| 1090 | } |
| 1091 | |
| 1092 | LTTNG_HIDDEN |
| 1093 | enum lttng_map_status lttng_map_content_append_key_value_list( |
| 1094 | struct lttng_map_content *map_content, |
| 1095 | struct lttng_map_key_value_pair_list *kv_list) |
| 1096 | { |
| 1097 | int ret; |
| 1098 | enum lttng_map_status status; |
| 1099 | |
| 1100 | assert(map_content); |
| 1101 | assert(kv_list); |
| 1102 | |
| 1103 | ret = lttng_dynamic_pointer_array_add_pointer(&map_content->array, |
| 1104 | kv_list); |
| 1105 | if (ret) { |
| 1106 | status = LTTNG_MAP_STATUS_ERROR; |
| 1107 | goto end; |
| 1108 | } |
| 1109 | |
| 1110 | status = LTTNG_MAP_STATUS_OK; |
| 1111 | |
| 1112 | end: |
| 1113 | return status; |
| 1114 | } |
| 1115 | |
| 1116 | const struct lttng_map_key_value_pair_list *lttng_map_content_get_at_index( |
| 1117 | const struct lttng_map_content *map_content, |
| 1118 | unsigned int index) |
| 1119 | { |
| 1120 | struct lttng_map_key_value_pair_list *kv_pair_list = NULL; |
| 1121 | |
| 1122 | assert(map_content); |
| 1123 | if (index >= lttng_dynamic_pointer_array_get_count(&map_content->array)) { |
| 1124 | goto end; |
| 1125 | } |
| 1126 | |
| 1127 | kv_pair_list = (struct lttng_map_key_value_pair_list *) |
| 1128 | lttng_dynamic_pointer_array_get_pointer( |
| 1129 | &map_content->array, index); |
| 1130 | end: |
| 1131 | return kv_pair_list; |
| 1132 | } |
| 1133 | |
| 1134 | LTTNG_HIDDEN |
| 1135 | ssize_t lttng_map_content_create_from_payload( |
| 1136 | struct lttng_payload_view *src_view, |
| 1137 | struct lttng_map_content **map_content) |
| 1138 | { |
| 1139 | ssize_t ret, offset = 0; |
| 1140 | unsigned int i; |
| 1141 | struct lttng_map_content_comm *map_content_comm; |
| 1142 | struct lttng_map_content *local_map_content; |
| 1143 | |
| 1144 | map_content_comm = (typeof(map_content_comm)) src_view->buffer.data; |
| 1145 | offset += sizeof(*map_content_comm); |
| 1146 | |
| 1147 | local_map_content = lttng_map_content_create(map_content_comm->type); |
| 1148 | if (!local_map_content) { |
| 1149 | ret = -1; |
| 1150 | goto end; |
| 1151 | } |
| 1152 | |
| 1153 | for (i = 0; i < map_content_comm->count; i++) { |
| 1154 | struct lttng_map_key_value_pair_list *kv_pair_list = NULL; |
| 1155 | struct lttng_payload_view kv_list_view = |
| 1156 | lttng_payload_view_from_view(src_view, offset, -1); |
| 1157 | ssize_t kv_list_size; |
| 1158 | |
| 1159 | kv_list_size = lttng_map_key_value_pair_list_create_from_payload( |
| 1160 | &kv_list_view, &kv_pair_list); |
| 1161 | if (kv_list_size < 0) { |
| 1162 | ret = kv_list_size; |
| 1163 | goto end; |
| 1164 | } |
| 1165 | |
| 1166 | /* Transfer ownership of the key-value to the collection. */ |
| 1167 | ret = lttng_map_content_append_key_value_list(local_map_content, |
| 1168 | kv_pair_list); |
| 1169 | if (ret < 0) { |
| 1170 | ret = -1; |
| 1171 | goto end; |
| 1172 | } |
| 1173 | |
| 1174 | offset += kv_list_size; |
| 1175 | } |
| 1176 | |
| 1177 | /* Pass ownership to caller. */ |
| 1178 | *map_content = local_map_content; |
| 1179 | local_map_content = NULL; |
| 1180 | |
| 1181 | ret = offset; |
| 1182 | end: |
| 1183 | lttng_map_content_destroy(local_map_content); |
| 1184 | return ret; |
| 1185 | } |
| 1186 | |
| 1187 | LTTNG_HIDDEN |
| 1188 | int lttng_map_content_serialize( |
| 1189 | const struct lttng_map_content *map_content, |
| 1190 | struct lttng_payload *payload) |
| 1191 | { |
| 1192 | int ret; |
| 1193 | unsigned int i, count; |
| 1194 | enum lttng_map_status status; |
| 1195 | struct lttng_map_content_comm map_content_comm = {}; |
| 1196 | |
| 1197 | status = lttng_map_content_get_count(map_content, &count); |
| 1198 | if (status != LTTNG_MAP_STATUS_OK) { |
| 1199 | ret = LTTNG_ERR_INVALID; |
| 1200 | goto end; |
| 1201 | } |
| 1202 | |
| 1203 | map_content_comm.count = count; |
| 1204 | map_content_comm.type = lttng_map_content_get_buffer_type(map_content); |
| 1205 | |
| 1206 | ret = lttng_dynamic_buffer_append(&payload->buffer, &map_content_comm, |
| 1207 | sizeof(map_content_comm)); |
| 1208 | if (ret) { |
| 1209 | goto end; |
| 1210 | } |
| 1211 | for (i = 0; i < count; i++) { |
| 1212 | const struct lttng_map_key_value_pair_list *kv_pair_list = |
| 1213 | lttng_map_content_get_at_index(map_content, i); |
| 1214 | |
| 1215 | assert(kv_pair_list); |
| 1216 | |
| 1217 | ret = lttng_map_key_value_pair_list_serialize(kv_pair_list, payload); |
| 1218 | if (ret) { |
| 1219 | goto end; |
| 1220 | } |
| 1221 | } |
| 1222 | |
| 1223 | end: |
| 1224 | return ret; |
| 1225 | } |
| 1226 | |
| 1227 | void lttng_map_content_destroy(struct lttng_map_content *map_content) |
| 1228 | { |
| 1229 | if (!map_content) { |
| 1230 | return; |
| 1231 | } |
| 1232 | |
| 1233 | lttng_dynamic_pointer_array_reset(&map_content->array); |
| 1234 | free(map_content); |
| 1235 | } |