| 1 | /* |
| 2 | * event-fields.c |
| 3 | * |
| 4 | * Babeltrace CTF IR - Event Fields |
| 5 | * |
| 6 | * Copyright 2013, 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
| 7 | * |
| 8 | * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com> |
| 9 | * |
| 10 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 11 | * of this software and associated documentation files (the "Software"), to deal |
| 12 | * in the Software without restriction, including without limitation the rights |
| 13 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 14 | * copies of the Software, and to permit persons to whom the Software is |
| 15 | * furnished to do so, subject to the following conditions: |
| 16 | * |
| 17 | * The above copyright notice and this permission notice shall be included in |
| 18 | * all copies or substantial portions of the Software. |
| 19 | * |
| 20 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 21 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 22 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 23 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 24 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 25 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 26 | * SOFTWARE. |
| 27 | */ |
| 28 | |
| 29 | #include <babeltrace/ctf-writer/event-fields.h> |
| 30 | #include <babeltrace/ctf-ir/event-fields-internal.h> |
| 31 | #include <babeltrace/ctf-ir/event-types-internal.h> |
| 32 | #include <babeltrace/compiler.h> |
| 33 | |
| 34 | #define PACKET_LEN_INCREMENT (getpagesize() * 8 * CHAR_BIT) |
| 35 | |
| 36 | static |
| 37 | struct bt_ctf_field *bt_ctf_field_integer_create(struct bt_ctf_field_type *); |
| 38 | static |
| 39 | struct bt_ctf_field *bt_ctf_field_enumeration_create( |
| 40 | struct bt_ctf_field_type *); |
| 41 | static |
| 42 | struct bt_ctf_field *bt_ctf_field_floating_point_create( |
| 43 | struct bt_ctf_field_type *); |
| 44 | static |
| 45 | struct bt_ctf_field *bt_ctf_field_structure_create( |
| 46 | struct bt_ctf_field_type *); |
| 47 | static |
| 48 | struct bt_ctf_field *bt_ctf_field_variant_create( |
| 49 | struct bt_ctf_field_type *); |
| 50 | static |
| 51 | struct bt_ctf_field *bt_ctf_field_array_create( |
| 52 | struct bt_ctf_field_type *); |
| 53 | static |
| 54 | struct bt_ctf_field *bt_ctf_field_sequence_create( |
| 55 | struct bt_ctf_field_type *); |
| 56 | static |
| 57 | struct bt_ctf_field *bt_ctf_field_string_create(struct bt_ctf_field_type *); |
| 58 | |
| 59 | static |
| 60 | void bt_ctf_field_destroy(struct bt_ctf_ref *); |
| 61 | static |
| 62 | void bt_ctf_field_integer_destroy(struct bt_ctf_field *); |
| 63 | static |
| 64 | void bt_ctf_field_enumeration_destroy(struct bt_ctf_field *); |
| 65 | static |
| 66 | void bt_ctf_field_floating_point_destroy(struct bt_ctf_field *); |
| 67 | static |
| 68 | void bt_ctf_field_structure_destroy(struct bt_ctf_field *); |
| 69 | static |
| 70 | void bt_ctf_field_variant_destroy(struct bt_ctf_field *); |
| 71 | static |
| 72 | void bt_ctf_field_array_destroy(struct bt_ctf_field *); |
| 73 | static |
| 74 | void bt_ctf_field_sequence_destroy(struct bt_ctf_field *); |
| 75 | static |
| 76 | void bt_ctf_field_string_destroy(struct bt_ctf_field *); |
| 77 | |
| 78 | static |
| 79 | int bt_ctf_field_generic_validate(struct bt_ctf_field *field); |
| 80 | static |
| 81 | int bt_ctf_field_structure_validate(struct bt_ctf_field *field); |
| 82 | static |
| 83 | int bt_ctf_field_variant_validate(struct bt_ctf_field *field); |
| 84 | static |
| 85 | int bt_ctf_field_enumeration_validate(struct bt_ctf_field *field); |
| 86 | static |
| 87 | int bt_ctf_field_array_validate(struct bt_ctf_field *field); |
| 88 | static |
| 89 | int bt_ctf_field_sequence_validate(struct bt_ctf_field *field); |
| 90 | |
| 91 | static |
| 92 | int bt_ctf_field_generic_reset(struct bt_ctf_field *field); |
| 93 | static |
| 94 | int bt_ctf_field_structure_reset(struct bt_ctf_field *field); |
| 95 | static |
| 96 | int bt_ctf_field_variant_reset(struct bt_ctf_field *field); |
| 97 | static |
| 98 | int bt_ctf_field_enumeration_reset(struct bt_ctf_field *field); |
| 99 | static |
| 100 | int bt_ctf_field_array_reset(struct bt_ctf_field *field); |
| 101 | static |
| 102 | int bt_ctf_field_sequence_reset(struct bt_ctf_field *field); |
| 103 | static |
| 104 | int bt_ctf_field_string_reset(struct bt_ctf_field *field); |
| 105 | |
| 106 | static |
| 107 | int bt_ctf_field_integer_serialize(struct bt_ctf_field *, |
| 108 | struct ctf_stream_pos *); |
| 109 | static |
| 110 | int bt_ctf_field_enumeration_serialize(struct bt_ctf_field *, |
| 111 | struct ctf_stream_pos *); |
| 112 | static |
| 113 | int bt_ctf_field_floating_point_serialize(struct bt_ctf_field *, |
| 114 | struct ctf_stream_pos *); |
| 115 | static |
| 116 | int bt_ctf_field_structure_serialize(struct bt_ctf_field *, |
| 117 | struct ctf_stream_pos *); |
| 118 | static |
| 119 | int bt_ctf_field_variant_serialize(struct bt_ctf_field *, |
| 120 | struct ctf_stream_pos *); |
| 121 | static |
| 122 | int bt_ctf_field_array_serialize(struct bt_ctf_field *, |
| 123 | struct ctf_stream_pos *); |
| 124 | static |
| 125 | int bt_ctf_field_sequence_serialize(struct bt_ctf_field *, |
| 126 | struct ctf_stream_pos *); |
| 127 | static |
| 128 | int bt_ctf_field_string_serialize(struct bt_ctf_field *, |
| 129 | struct ctf_stream_pos *); |
| 130 | |
| 131 | static |
| 132 | int increase_packet_size(struct ctf_stream_pos *pos); |
| 133 | |
| 134 | static |
| 135 | struct bt_ctf_field *(*field_create_funcs[])( |
| 136 | struct bt_ctf_field_type *) = { |
| 137 | [CTF_TYPE_INTEGER] = bt_ctf_field_integer_create, |
| 138 | [CTF_TYPE_ENUM] = bt_ctf_field_enumeration_create, |
| 139 | [CTF_TYPE_FLOAT] = |
| 140 | bt_ctf_field_floating_point_create, |
| 141 | [CTF_TYPE_STRUCT] = bt_ctf_field_structure_create, |
| 142 | [CTF_TYPE_VARIANT] = bt_ctf_field_variant_create, |
| 143 | [CTF_TYPE_ARRAY] = bt_ctf_field_array_create, |
| 144 | [CTF_TYPE_SEQUENCE] = bt_ctf_field_sequence_create, |
| 145 | [CTF_TYPE_STRING] = bt_ctf_field_string_create, |
| 146 | }; |
| 147 | |
| 148 | static |
| 149 | void (*field_destroy_funcs[])(struct bt_ctf_field *) = { |
| 150 | [CTF_TYPE_INTEGER] = bt_ctf_field_integer_destroy, |
| 151 | [CTF_TYPE_ENUM] = bt_ctf_field_enumeration_destroy, |
| 152 | [CTF_TYPE_FLOAT] = |
| 153 | bt_ctf_field_floating_point_destroy, |
| 154 | [CTF_TYPE_STRUCT] = bt_ctf_field_structure_destroy, |
| 155 | [CTF_TYPE_VARIANT] = bt_ctf_field_variant_destroy, |
| 156 | [CTF_TYPE_ARRAY] = bt_ctf_field_array_destroy, |
| 157 | [CTF_TYPE_SEQUENCE] = bt_ctf_field_sequence_destroy, |
| 158 | [CTF_TYPE_STRING] = bt_ctf_field_string_destroy, |
| 159 | }; |
| 160 | |
| 161 | static |
| 162 | int (*field_validate_funcs[])(struct bt_ctf_field *) = { |
| 163 | [CTF_TYPE_INTEGER] = bt_ctf_field_generic_validate, |
| 164 | [CTF_TYPE_ENUM] = bt_ctf_field_enumeration_validate, |
| 165 | [CTF_TYPE_FLOAT] = bt_ctf_field_generic_validate, |
| 166 | [CTF_TYPE_STRUCT] = bt_ctf_field_structure_validate, |
| 167 | [CTF_TYPE_VARIANT] = bt_ctf_field_variant_validate, |
| 168 | [CTF_TYPE_ARRAY] = bt_ctf_field_array_validate, |
| 169 | [CTF_TYPE_SEQUENCE] = bt_ctf_field_sequence_validate, |
| 170 | [CTF_TYPE_STRING] = bt_ctf_field_generic_validate, |
| 171 | }; |
| 172 | |
| 173 | static |
| 174 | int (*field_reset_funcs[])(struct bt_ctf_field *) = { |
| 175 | [CTF_TYPE_INTEGER] = bt_ctf_field_generic_reset, |
| 176 | [CTF_TYPE_ENUM] = bt_ctf_field_enumeration_reset, |
| 177 | [CTF_TYPE_FLOAT] = bt_ctf_field_generic_reset, |
| 178 | [CTF_TYPE_STRUCT] = bt_ctf_field_structure_reset, |
| 179 | [CTF_TYPE_VARIANT] = bt_ctf_field_variant_reset, |
| 180 | [CTF_TYPE_ARRAY] = bt_ctf_field_array_reset, |
| 181 | [CTF_TYPE_SEQUENCE] = bt_ctf_field_sequence_reset, |
| 182 | [CTF_TYPE_STRING] = bt_ctf_field_string_reset, |
| 183 | }; |
| 184 | |
| 185 | static |
| 186 | int (*field_serialize_funcs[])(struct bt_ctf_field *, |
| 187 | struct ctf_stream_pos *) = { |
| 188 | [CTF_TYPE_INTEGER] = bt_ctf_field_integer_serialize, |
| 189 | [CTF_TYPE_ENUM] = bt_ctf_field_enumeration_serialize, |
| 190 | [CTF_TYPE_FLOAT] = |
| 191 | bt_ctf_field_floating_point_serialize, |
| 192 | [CTF_TYPE_STRUCT] = bt_ctf_field_structure_serialize, |
| 193 | [CTF_TYPE_VARIANT] = bt_ctf_field_variant_serialize, |
| 194 | [CTF_TYPE_ARRAY] = bt_ctf_field_array_serialize, |
| 195 | [CTF_TYPE_SEQUENCE] = bt_ctf_field_sequence_serialize, |
| 196 | [CTF_TYPE_STRING] = bt_ctf_field_string_serialize, |
| 197 | }; |
| 198 | |
| 199 | struct bt_ctf_field *bt_ctf_field_create(struct bt_ctf_field_type *type) |
| 200 | { |
| 201 | struct bt_ctf_field *field = NULL; |
| 202 | enum ctf_type_id type_id; |
| 203 | |
| 204 | if (!type) { |
| 205 | goto error; |
| 206 | } |
| 207 | |
| 208 | type_id = bt_ctf_field_type_get_type_id(type); |
| 209 | if (type_id <= CTF_TYPE_UNKNOWN || type_id >= NR_CTF_TYPES || |
| 210 | bt_ctf_field_type_validate(type)) { |
| 211 | goto error; |
| 212 | } |
| 213 | |
| 214 | field = field_create_funcs[type_id](type); |
| 215 | if (!field) { |
| 216 | goto error; |
| 217 | } |
| 218 | |
| 219 | /* The type's declaration can't change after this point */ |
| 220 | bt_ctf_field_type_freeze(type); |
| 221 | bt_ctf_field_type_get(type); |
| 222 | bt_ctf_ref_init(&field->ref_count); |
| 223 | field->type = type; |
| 224 | error: |
| 225 | return field; |
| 226 | } |
| 227 | |
| 228 | void bt_ctf_field_get(struct bt_ctf_field *field) |
| 229 | { |
| 230 | if (field) { |
| 231 | bt_ctf_ref_get(&field->ref_count); |
| 232 | } |
| 233 | } |
| 234 | |
| 235 | void bt_ctf_field_put(struct bt_ctf_field *field) |
| 236 | { |
| 237 | if (field) { |
| 238 | bt_ctf_ref_put(&field->ref_count, bt_ctf_field_destroy); |
| 239 | } |
| 240 | } |
| 241 | |
| 242 | struct bt_ctf_field_type *bt_ctf_field_get_type(struct bt_ctf_field *field) |
| 243 | { |
| 244 | struct bt_ctf_field_type *ret = NULL; |
| 245 | |
| 246 | if (!field) { |
| 247 | goto end; |
| 248 | } |
| 249 | |
| 250 | ret = field->type; |
| 251 | bt_ctf_field_type_get(ret); |
| 252 | end: |
| 253 | return ret; |
| 254 | } |
| 255 | |
| 256 | struct bt_ctf_field *bt_ctf_field_sequence_get_length( |
| 257 | struct bt_ctf_field *field) |
| 258 | { |
| 259 | struct bt_ctf_field *ret = NULL; |
| 260 | struct bt_ctf_field_sequence *sequence; |
| 261 | |
| 262 | if (!field) { |
| 263 | goto end; |
| 264 | } |
| 265 | |
| 266 | if (bt_ctf_field_type_get_type_id(field->type) != |
| 267 | CTF_TYPE_SEQUENCE) { |
| 268 | goto end; |
| 269 | } |
| 270 | |
| 271 | sequence = container_of(field, struct bt_ctf_field_sequence, parent); |
| 272 | ret = sequence->length; |
| 273 | bt_ctf_field_get(ret); |
| 274 | end: |
| 275 | return ret; |
| 276 | } |
| 277 | |
| 278 | int bt_ctf_field_sequence_set_length(struct bt_ctf_field *field, |
| 279 | struct bt_ctf_field *length_field) |
| 280 | { |
| 281 | int ret = 0; |
| 282 | struct bt_ctf_field_type_integer *length_type; |
| 283 | struct bt_ctf_field_integer *length; |
| 284 | struct bt_ctf_field_sequence *sequence; |
| 285 | uint64_t sequence_length; |
| 286 | |
| 287 | if (!field || !length_field) { |
| 288 | ret = -1; |
| 289 | goto end; |
| 290 | } |
| 291 | if (bt_ctf_field_type_get_type_id(length_field->type) != |
| 292 | CTF_TYPE_INTEGER) { |
| 293 | ret = -1; |
| 294 | goto end; |
| 295 | } |
| 296 | |
| 297 | length_type = container_of(length_field->type, |
| 298 | struct bt_ctf_field_type_integer, parent); |
| 299 | /* The length field must be unsigned */ |
| 300 | if (length_type->declaration.signedness) { |
| 301 | ret = -1; |
| 302 | goto end; |
| 303 | } |
| 304 | |
| 305 | length = container_of(length_field, struct bt_ctf_field_integer, |
| 306 | parent); |
| 307 | sequence_length = length->definition.value._unsigned; |
| 308 | sequence = container_of(field, struct bt_ctf_field_sequence, parent); |
| 309 | if (sequence->elements) { |
| 310 | g_ptr_array_free(sequence->elements, TRUE); |
| 311 | bt_ctf_field_put(sequence->length); |
| 312 | } |
| 313 | |
| 314 | sequence->elements = g_ptr_array_sized_new((size_t)sequence_length); |
| 315 | if (!sequence->elements) { |
| 316 | ret = -1; |
| 317 | goto end; |
| 318 | } |
| 319 | |
| 320 | g_ptr_array_set_free_func(sequence->elements, |
| 321 | (GDestroyNotify)bt_ctf_field_put); |
| 322 | g_ptr_array_set_size(sequence->elements, (size_t)sequence_length); |
| 323 | bt_ctf_field_get(length_field); |
| 324 | sequence->length = length_field; |
| 325 | end: |
| 326 | return ret; |
| 327 | } |
| 328 | |
| 329 | struct bt_ctf_field *bt_ctf_field_structure_get_field( |
| 330 | struct bt_ctf_field *field, const char *name) |
| 331 | { |
| 332 | struct bt_ctf_field *new_field = NULL; |
| 333 | GQuark field_quark; |
| 334 | struct bt_ctf_field_structure *structure; |
| 335 | struct bt_ctf_field_type *field_type = NULL; |
| 336 | size_t index; |
| 337 | |
| 338 | if (!field || !name || |
| 339 | bt_ctf_field_type_get_type_id(field->type) != |
| 340 | CTF_TYPE_STRUCT) { |
| 341 | goto error; |
| 342 | } |
| 343 | |
| 344 | field_quark = g_quark_from_string(name); |
| 345 | structure = container_of(field, struct bt_ctf_field_structure, parent); |
| 346 | field_type = |
| 347 | bt_ctf_field_type_structure_get_field_type_by_name(field->type, |
| 348 | name); |
| 349 | if (!g_hash_table_lookup_extended(structure->field_name_to_index, |
| 350 | GUINT_TO_POINTER(field_quark), NULL, (gpointer *)&index)) { |
| 351 | goto error; |
| 352 | } |
| 353 | |
| 354 | if (structure->fields->pdata[index]) { |
| 355 | new_field = structure->fields->pdata[index]; |
| 356 | goto end; |
| 357 | } |
| 358 | |
| 359 | new_field = bt_ctf_field_create(field_type); |
| 360 | if (!new_field) { |
| 361 | goto error; |
| 362 | } |
| 363 | |
| 364 | structure->fields->pdata[index] = new_field; |
| 365 | end: |
| 366 | bt_ctf_field_get(new_field); |
| 367 | error: |
| 368 | if (field_type) { |
| 369 | bt_ctf_field_type_put(field_type); |
| 370 | } |
| 371 | return new_field; |
| 372 | } |
| 373 | |
| 374 | struct bt_ctf_field *bt_ctf_field_structure_get_field_by_index( |
| 375 | struct bt_ctf_field *field, int index) |
| 376 | { |
| 377 | int ret; |
| 378 | const char *field_name; |
| 379 | struct bt_ctf_field_structure *structure; |
| 380 | struct bt_ctf_field_type *structure_type; |
| 381 | struct bt_ctf_field_type *field_type = NULL; |
| 382 | struct bt_ctf_field *ret_field = NULL; |
| 383 | |
| 384 | if (!field || |
| 385 | bt_ctf_field_type_get_type_id(field->type) != CTF_TYPE_STRUCT) { |
| 386 | goto end; |
| 387 | } |
| 388 | |
| 389 | structure = container_of(field, struct bt_ctf_field_structure, parent); |
| 390 | if (index >= structure->fields->len) { |
| 391 | goto error; |
| 392 | } |
| 393 | |
| 394 | ret_field = structure->fields->pdata[index]; |
| 395 | if (ret_field) { |
| 396 | goto end; |
| 397 | } |
| 398 | |
| 399 | /* Field has not been instanciated yet, create it */ |
| 400 | structure_type = bt_ctf_field_get_type(field); |
| 401 | if (!structure_type) { |
| 402 | goto error; |
| 403 | } |
| 404 | |
| 405 | ret = bt_ctf_field_type_structure_get_field(structure_type, |
| 406 | &field_name, &field_type, index); |
| 407 | bt_ctf_field_type_put(structure_type); |
| 408 | if (ret) { |
| 409 | goto error; |
| 410 | } |
| 411 | |
| 412 | ret_field = bt_ctf_field_create(field_type); |
| 413 | if (!ret_field) { |
| 414 | goto error; |
| 415 | } |
| 416 | |
| 417 | structure->fields->pdata[index] = ret_field; |
| 418 | end: |
| 419 | bt_ctf_field_get(ret_field); |
| 420 | error: |
| 421 | if (field_type) { |
| 422 | bt_ctf_field_type_put(field_type); |
| 423 | } |
| 424 | return ret_field; |
| 425 | } |
| 426 | |
| 427 | BT_HIDDEN |
| 428 | int bt_ctf_field_structure_set_field(struct bt_ctf_field *field, |
| 429 | const char *name, struct bt_ctf_field *value) |
| 430 | { |
| 431 | int ret = 0; |
| 432 | GQuark field_quark; |
| 433 | struct bt_ctf_field_structure *structure; |
| 434 | struct bt_ctf_field_type *expected_field_type = NULL; |
| 435 | size_t index; |
| 436 | |
| 437 | if (!field || !name || !value || |
| 438 | bt_ctf_field_type_get_type_id(field->type) != |
| 439 | CTF_TYPE_STRUCT) { |
| 440 | ret = -1; |
| 441 | goto end; |
| 442 | } |
| 443 | |
| 444 | field_quark = g_quark_from_string(name); |
| 445 | structure = container_of(field, struct bt_ctf_field_structure, parent); |
| 446 | expected_field_type = |
| 447 | bt_ctf_field_type_structure_get_field_type_by_name(field->type, |
| 448 | name); |
| 449 | if (expected_field_type != value->type) { |
| 450 | ret = -1; |
| 451 | goto end; |
| 452 | } |
| 453 | |
| 454 | if (!g_hash_table_lookup_extended(structure->field_name_to_index, |
| 455 | GUINT_TO_POINTER(field_quark), NULL, (gpointer *) &index)) { |
| 456 | goto end; |
| 457 | } |
| 458 | |
| 459 | if (structure->fields->pdata[index]) { |
| 460 | bt_ctf_field_put(structure->fields->pdata[index]); |
| 461 | } |
| 462 | |
| 463 | structure->fields->pdata[index] = value; |
| 464 | bt_ctf_field_get(value); |
| 465 | end: |
| 466 | if (expected_field_type) { |
| 467 | bt_ctf_field_type_put(expected_field_type); |
| 468 | } |
| 469 | return ret; |
| 470 | } |
| 471 | |
| 472 | struct bt_ctf_field *bt_ctf_field_array_get_field(struct bt_ctf_field *field, |
| 473 | uint64_t index) |
| 474 | { |
| 475 | struct bt_ctf_field *new_field = NULL; |
| 476 | struct bt_ctf_field_type *field_type = NULL; |
| 477 | struct bt_ctf_field_array *array; |
| 478 | |
| 479 | if (!field || bt_ctf_field_type_get_type_id(field->type) != |
| 480 | CTF_TYPE_ARRAY) { |
| 481 | goto end; |
| 482 | } |
| 483 | |
| 484 | array = container_of(field, struct bt_ctf_field_array, parent); |
| 485 | if (index >= array->elements->len) { |
| 486 | goto end; |
| 487 | } |
| 488 | |
| 489 | field_type = bt_ctf_field_type_array_get_element_type(field->type); |
| 490 | if (array->elements->pdata[(size_t)index]) { |
| 491 | new_field = array->elements->pdata[(size_t)index]; |
| 492 | goto end; |
| 493 | } |
| 494 | |
| 495 | new_field = bt_ctf_field_create(field_type); |
| 496 | bt_ctf_field_get(new_field); |
| 497 | array->elements->pdata[(size_t)index] = new_field; |
| 498 | end: |
| 499 | if (field_type) { |
| 500 | bt_ctf_field_type_put(field_type); |
| 501 | } |
| 502 | return new_field; |
| 503 | } |
| 504 | |
| 505 | struct bt_ctf_field *bt_ctf_field_sequence_get_field(struct bt_ctf_field *field, |
| 506 | uint64_t index) |
| 507 | { |
| 508 | struct bt_ctf_field *new_field = NULL; |
| 509 | struct bt_ctf_field_type *field_type = NULL; |
| 510 | struct bt_ctf_field_sequence *sequence; |
| 511 | |
| 512 | if (!field || bt_ctf_field_type_get_type_id(field->type) != |
| 513 | CTF_TYPE_SEQUENCE) { |
| 514 | goto end; |
| 515 | } |
| 516 | |
| 517 | sequence = container_of(field, struct bt_ctf_field_sequence, parent); |
| 518 | if (!sequence->elements || sequence->elements->len <= index) { |
| 519 | goto end; |
| 520 | } |
| 521 | |
| 522 | field_type = bt_ctf_field_type_sequence_get_element_type(field->type); |
| 523 | if (sequence->elements->pdata[(size_t)index]) { |
| 524 | new_field = sequence->elements->pdata[(size_t)index]; |
| 525 | goto end; |
| 526 | } |
| 527 | |
| 528 | new_field = bt_ctf_field_create(field_type); |
| 529 | bt_ctf_field_get(new_field); |
| 530 | sequence->elements->pdata[(size_t)index] = new_field; |
| 531 | end: |
| 532 | if (field_type) { |
| 533 | bt_ctf_field_type_put(field_type); |
| 534 | } |
| 535 | return new_field; |
| 536 | } |
| 537 | |
| 538 | struct bt_ctf_field *bt_ctf_field_variant_get_field(struct bt_ctf_field *field, |
| 539 | struct bt_ctf_field *tag_field) |
| 540 | { |
| 541 | struct bt_ctf_field *new_field = NULL; |
| 542 | struct bt_ctf_field_variant *variant; |
| 543 | struct bt_ctf_field_type_variant *variant_type; |
| 544 | struct bt_ctf_field_type *field_type; |
| 545 | struct bt_ctf_field *tag_enum = NULL; |
| 546 | struct bt_ctf_field_integer *tag_enum_integer; |
| 547 | int64_t tag_enum_value; |
| 548 | |
| 549 | if (!field || !tag_field || |
| 550 | bt_ctf_field_type_get_type_id(field->type) != |
| 551 | CTF_TYPE_VARIANT || |
| 552 | bt_ctf_field_type_get_type_id(tag_field->type) != |
| 553 | CTF_TYPE_ENUM) { |
| 554 | goto end; |
| 555 | } |
| 556 | |
| 557 | variant = container_of(field, struct bt_ctf_field_variant, parent); |
| 558 | variant_type = container_of(field->type, |
| 559 | struct bt_ctf_field_type_variant, parent); |
| 560 | tag_enum = bt_ctf_field_enumeration_get_container(tag_field); |
| 561 | if (!tag_enum) { |
| 562 | goto end; |
| 563 | } |
| 564 | |
| 565 | tag_enum_integer = container_of(tag_enum, struct bt_ctf_field_integer, |
| 566 | parent); |
| 567 | |
| 568 | if (!bt_ctf_field_validate(variant->tag)) { |
| 569 | goto end; |
| 570 | } |
| 571 | |
| 572 | tag_enum_value = tag_enum_integer->definition.value._signed; |
| 573 | field_type = bt_ctf_field_type_variant_get_field_type_signed( |
| 574 | variant_type, tag_enum_value); |
| 575 | if (!field_type) { |
| 576 | goto end; |
| 577 | } |
| 578 | |
| 579 | new_field = bt_ctf_field_create(field_type); |
| 580 | if (!new_field) { |
| 581 | goto end; |
| 582 | } |
| 583 | |
| 584 | bt_ctf_field_put(variant->tag); |
| 585 | bt_ctf_field_put(variant->payload); |
| 586 | bt_ctf_field_get(new_field); |
| 587 | bt_ctf_field_get(tag_field); |
| 588 | variant->tag = tag_field; |
| 589 | variant->payload = new_field; |
| 590 | end: |
| 591 | bt_ctf_field_put(tag_enum); |
| 592 | return new_field; |
| 593 | } |
| 594 | |
| 595 | struct bt_ctf_field *bt_ctf_field_enumeration_get_container( |
| 596 | struct bt_ctf_field *field) |
| 597 | { |
| 598 | struct bt_ctf_field *container = NULL; |
| 599 | struct bt_ctf_field_enumeration *enumeration; |
| 600 | |
| 601 | if (!field || bt_ctf_field_type_get_type_id(field->type) != |
| 602 | CTF_TYPE_ENUM) { |
| 603 | goto end; |
| 604 | } |
| 605 | |
| 606 | enumeration = container_of(field, struct bt_ctf_field_enumeration, |
| 607 | parent); |
| 608 | if (!enumeration->payload) { |
| 609 | struct bt_ctf_field_type_enumeration *enumeration_type = |
| 610 | container_of(field->type, |
| 611 | struct bt_ctf_field_type_enumeration, parent); |
| 612 | enumeration->payload = |
| 613 | bt_ctf_field_create(enumeration_type->container); |
| 614 | } |
| 615 | |
| 616 | container = enumeration->payload; |
| 617 | bt_ctf_field_get(container); |
| 618 | end: |
| 619 | return container; |
| 620 | } |
| 621 | |
| 622 | const char *bt_ctf_field_enumeration_get_mapping_name( |
| 623 | struct bt_ctf_field *field) |
| 624 | { |
| 625 | int ret; |
| 626 | const char *name = NULL; |
| 627 | struct bt_ctf_field *container = NULL; |
| 628 | struct bt_ctf_field_type *container_type = NULL; |
| 629 | struct bt_ctf_field_type_integer *integer_type = NULL; |
| 630 | struct bt_ctf_field_type_enumeration *enumeration_type = NULL; |
| 631 | |
| 632 | container = bt_ctf_field_enumeration_get_container(field); |
| 633 | if (!container) { |
| 634 | goto end; |
| 635 | } |
| 636 | |
| 637 | container_type = bt_ctf_field_get_type(container); |
| 638 | if (!container_type) { |
| 639 | goto error_put_container; |
| 640 | } |
| 641 | |
| 642 | integer_type = container_of(container_type, |
| 643 | struct bt_ctf_field_type_integer, parent); |
| 644 | enumeration_type = container_of(field->type, |
| 645 | struct bt_ctf_field_type_enumeration, parent); |
| 646 | |
| 647 | if (!integer_type->declaration.signedness) { |
| 648 | uint64_t value; |
| 649 | ret = bt_ctf_field_unsigned_integer_get_value(container, |
| 650 | &value); |
| 651 | if (ret) { |
| 652 | goto error_put_container_type; |
| 653 | } |
| 654 | |
| 655 | name = bt_ctf_field_type_enumeration_get_mapping_name_unsigned( |
| 656 | enumeration_type, value); |
| 657 | } else { |
| 658 | int64_t value; |
| 659 | ret = bt_ctf_field_signed_integer_get_value(container, |
| 660 | &value); |
| 661 | if (ret) { |
| 662 | goto error_put_container_type; |
| 663 | } |
| 664 | |
| 665 | name = bt_ctf_field_type_enumeration_get_mapping_name_signed( |
| 666 | enumeration_type, value); |
| 667 | } |
| 668 | |
| 669 | error_put_container_type: |
| 670 | bt_ctf_field_type_put(container_type); |
| 671 | error_put_container: |
| 672 | bt_ctf_field_put(container); |
| 673 | end: |
| 674 | return name; |
| 675 | } |
| 676 | |
| 677 | int bt_ctf_field_signed_integer_get_value(struct bt_ctf_field *field, |
| 678 | int64_t *value) |
| 679 | { |
| 680 | int ret = 0; |
| 681 | struct bt_ctf_field_integer *integer; |
| 682 | struct bt_ctf_field_type_integer *integer_type; |
| 683 | |
| 684 | if (!field || !value || !field->payload_set || |
| 685 | bt_ctf_field_type_get_type_id(field->type) != |
| 686 | CTF_TYPE_INTEGER) { |
| 687 | ret = -1; |
| 688 | goto end; |
| 689 | } |
| 690 | |
| 691 | integer_type = container_of(field->type, |
| 692 | struct bt_ctf_field_type_integer, parent); |
| 693 | if (!integer_type->declaration.signedness) { |
| 694 | ret = -1; |
| 695 | goto end; |
| 696 | } |
| 697 | |
| 698 | integer = container_of(field, |
| 699 | struct bt_ctf_field_integer, parent); |
| 700 | *value = integer->definition.value._signed; |
| 701 | end: |
| 702 | return ret; |
| 703 | } |
| 704 | |
| 705 | int bt_ctf_field_signed_integer_set_value(struct bt_ctf_field *field, |
| 706 | int64_t value) |
| 707 | { |
| 708 | int ret = 0; |
| 709 | struct bt_ctf_field_integer *integer; |
| 710 | struct bt_ctf_field_type_integer *integer_type; |
| 711 | unsigned int size; |
| 712 | int64_t min_value, max_value; |
| 713 | |
| 714 | if (!field || |
| 715 | bt_ctf_field_type_get_type_id(field->type) != |
| 716 | CTF_TYPE_INTEGER) { |
| 717 | ret = -1; |
| 718 | goto end; |
| 719 | } |
| 720 | |
| 721 | integer = container_of(field, struct bt_ctf_field_integer, parent); |
| 722 | integer_type = container_of(field->type, |
| 723 | struct bt_ctf_field_type_integer, parent); |
| 724 | if (!integer_type->declaration.signedness) { |
| 725 | ret = -1; |
| 726 | goto end; |
| 727 | } |
| 728 | |
| 729 | size = integer_type->declaration.len; |
| 730 | min_value = -((int64_t)1 << (size - 1)); |
| 731 | max_value = ((int64_t)1 << (size - 1)) - 1; |
| 732 | if (value < min_value || value > max_value) { |
| 733 | ret = -1; |
| 734 | goto end; |
| 735 | } |
| 736 | |
| 737 | integer->definition.value._signed = value; |
| 738 | integer->parent.payload_set = 1; |
| 739 | end: |
| 740 | return ret; |
| 741 | } |
| 742 | |
| 743 | int bt_ctf_field_unsigned_integer_get_value(struct bt_ctf_field *field, |
| 744 | uint64_t *value) |
| 745 | { |
| 746 | int ret = 0; |
| 747 | struct bt_ctf_field_integer *integer; |
| 748 | struct bt_ctf_field_type_integer *integer_type; |
| 749 | |
| 750 | if (!field || !value || !field->payload_set || |
| 751 | bt_ctf_field_type_get_type_id(field->type) != |
| 752 | CTF_TYPE_INTEGER) { |
| 753 | ret = -1; |
| 754 | goto end; |
| 755 | } |
| 756 | |
| 757 | integer_type = container_of(field->type, |
| 758 | struct bt_ctf_field_type_integer, parent); |
| 759 | if (integer_type->declaration.signedness) { |
| 760 | ret = -1; |
| 761 | goto end; |
| 762 | } |
| 763 | |
| 764 | integer = container_of(field, |
| 765 | struct bt_ctf_field_integer, parent); |
| 766 | *value = integer->definition.value._unsigned; |
| 767 | end: |
| 768 | return ret; |
| 769 | } |
| 770 | |
| 771 | int bt_ctf_field_unsigned_integer_set_value(struct bt_ctf_field *field, |
| 772 | uint64_t value) |
| 773 | { |
| 774 | int ret = 0; |
| 775 | struct bt_ctf_field_integer *integer; |
| 776 | struct bt_ctf_field_type_integer *integer_type; |
| 777 | unsigned int size; |
| 778 | uint64_t max_value; |
| 779 | |
| 780 | if (!field || |
| 781 | bt_ctf_field_type_get_type_id(field->type) != |
| 782 | CTF_TYPE_INTEGER) { |
| 783 | ret = -1; |
| 784 | goto end; |
| 785 | } |
| 786 | |
| 787 | integer = container_of(field, struct bt_ctf_field_integer, parent); |
| 788 | integer_type = container_of(field->type, |
| 789 | struct bt_ctf_field_type_integer, parent); |
| 790 | if (integer_type->declaration.signedness) { |
| 791 | ret = -1; |
| 792 | goto end; |
| 793 | } |
| 794 | |
| 795 | size = integer_type->declaration.len; |
| 796 | max_value = (size == 64) ? UINT64_MAX : ((uint64_t)1 << size) - 1; |
| 797 | if (value > max_value) { |
| 798 | ret = -1; |
| 799 | goto end; |
| 800 | } |
| 801 | |
| 802 | integer->definition.value._unsigned = value; |
| 803 | integer->parent.payload_set = 1; |
| 804 | end: |
| 805 | return ret; |
| 806 | } |
| 807 | |
| 808 | int bt_ctf_field_floating_point_get_value(struct bt_ctf_field *field, |
| 809 | double *value) |
| 810 | { |
| 811 | int ret = 0; |
| 812 | struct bt_ctf_field_floating_point *floating_point; |
| 813 | |
| 814 | if (!field || !value || !field->payload_set || |
| 815 | bt_ctf_field_type_get_type_id(field->type) != |
| 816 | CTF_TYPE_FLOAT) { |
| 817 | ret = -1; |
| 818 | goto end; |
| 819 | } |
| 820 | |
| 821 | floating_point = container_of(field, |
| 822 | struct bt_ctf_field_floating_point, parent); |
| 823 | *value = floating_point->definition.value; |
| 824 | end: |
| 825 | return ret; |
| 826 | } |
| 827 | |
| 828 | int bt_ctf_field_floating_point_set_value(struct bt_ctf_field *field, |
| 829 | double value) |
| 830 | { |
| 831 | int ret = 0; |
| 832 | struct bt_ctf_field_floating_point *floating_point; |
| 833 | |
| 834 | if (!field || |
| 835 | bt_ctf_field_type_get_type_id(field->type) != |
| 836 | CTF_TYPE_FLOAT) { |
| 837 | ret = -1; |
| 838 | goto end; |
| 839 | } |
| 840 | floating_point = container_of(field, struct bt_ctf_field_floating_point, |
| 841 | parent); |
| 842 | floating_point->definition.value = value; |
| 843 | floating_point->parent.payload_set = 1; |
| 844 | end: |
| 845 | return ret; |
| 846 | } |
| 847 | |
| 848 | const char *bt_ctf_field_string_get_value(struct bt_ctf_field *field) |
| 849 | { |
| 850 | const char *ret = NULL; |
| 851 | struct bt_ctf_field_string *string; |
| 852 | |
| 853 | if (!field || !field->payload_set || |
| 854 | bt_ctf_field_type_get_type_id(field->type) != |
| 855 | CTF_TYPE_STRING) { |
| 856 | goto end; |
| 857 | } |
| 858 | |
| 859 | string = container_of(field, |
| 860 | struct bt_ctf_field_string, parent); |
| 861 | ret = string->payload->str; |
| 862 | end: |
| 863 | return ret; |
| 864 | } |
| 865 | |
| 866 | int bt_ctf_field_string_set_value(struct bt_ctf_field *field, |
| 867 | const char *value) |
| 868 | { |
| 869 | int ret = 0; |
| 870 | struct bt_ctf_field_string *string; |
| 871 | |
| 872 | if (!field || !value || |
| 873 | bt_ctf_field_type_get_type_id(field->type) != |
| 874 | CTF_TYPE_STRING) { |
| 875 | ret = -1; |
| 876 | goto end; |
| 877 | } |
| 878 | |
| 879 | string = container_of(field, struct bt_ctf_field_string, parent); |
| 880 | if (string->payload) { |
| 881 | g_string_assign(string->payload, value); |
| 882 | } else { |
| 883 | string->payload = g_string_new(value); |
| 884 | } |
| 885 | |
| 886 | string->parent.payload_set = 1; |
| 887 | end: |
| 888 | return ret; |
| 889 | } |
| 890 | |
| 891 | BT_HIDDEN |
| 892 | int bt_ctf_field_validate(struct bt_ctf_field *field) |
| 893 | { |
| 894 | int ret = 0; |
| 895 | enum ctf_type_id type_id; |
| 896 | |
| 897 | if (!field) { |
| 898 | ret = -1; |
| 899 | goto end; |
| 900 | } |
| 901 | |
| 902 | type_id = bt_ctf_field_type_get_type_id(field->type); |
| 903 | if (type_id <= CTF_TYPE_UNKNOWN || type_id >= NR_CTF_TYPES) { |
| 904 | ret = -1; |
| 905 | goto end; |
| 906 | } |
| 907 | |
| 908 | ret = field_validate_funcs[type_id](field); |
| 909 | end: |
| 910 | return ret; |
| 911 | } |
| 912 | |
| 913 | BT_HIDDEN |
| 914 | int bt_ctf_field_reset(struct bt_ctf_field *field) |
| 915 | { |
| 916 | int ret = 0; |
| 917 | enum ctf_type_id type_id; |
| 918 | |
| 919 | if (!field) { |
| 920 | ret = -1; |
| 921 | goto end; |
| 922 | } |
| 923 | |
| 924 | type_id = bt_ctf_field_type_get_type_id(field->type); |
| 925 | if (type_id <= CTF_TYPE_UNKNOWN || type_id >= NR_CTF_TYPES) { |
| 926 | ret = -1; |
| 927 | goto end; |
| 928 | } |
| 929 | |
| 930 | ret = field_reset_funcs[type_id](field); |
| 931 | end: |
| 932 | return ret; |
| 933 | } |
| 934 | |
| 935 | BT_HIDDEN |
| 936 | int bt_ctf_field_serialize(struct bt_ctf_field *field, |
| 937 | struct ctf_stream_pos *pos) |
| 938 | { |
| 939 | int ret = 0; |
| 940 | enum ctf_type_id type_id; |
| 941 | |
| 942 | if (!field || !pos) { |
| 943 | ret = -1; |
| 944 | goto end; |
| 945 | } |
| 946 | |
| 947 | type_id = bt_ctf_field_type_get_type_id(field->type); |
| 948 | if (type_id <= CTF_TYPE_UNKNOWN || type_id >= NR_CTF_TYPES) { |
| 949 | ret = -1; |
| 950 | goto end; |
| 951 | } |
| 952 | |
| 953 | ret = field_serialize_funcs[type_id](field, pos); |
| 954 | end: |
| 955 | return ret; |
| 956 | } |
| 957 | |
| 958 | static |
| 959 | struct bt_ctf_field *bt_ctf_field_integer_create(struct bt_ctf_field_type *type) |
| 960 | { |
| 961 | struct bt_ctf_field_type_integer *integer_type = container_of(type, |
| 962 | struct bt_ctf_field_type_integer, parent); |
| 963 | struct bt_ctf_field_integer *integer = g_new0( |
| 964 | struct bt_ctf_field_integer, 1); |
| 965 | |
| 966 | if (integer) { |
| 967 | integer->definition.declaration = &integer_type->declaration; |
| 968 | } |
| 969 | |
| 970 | return integer ? &integer->parent : NULL; |
| 971 | } |
| 972 | |
| 973 | static |
| 974 | struct bt_ctf_field *bt_ctf_field_enumeration_create( |
| 975 | struct bt_ctf_field_type *type) |
| 976 | { |
| 977 | struct bt_ctf_field_enumeration *enumeration = g_new0( |
| 978 | struct bt_ctf_field_enumeration, 1); |
| 979 | |
| 980 | return enumeration ? &enumeration->parent : NULL; |
| 981 | } |
| 982 | |
| 983 | static |
| 984 | struct bt_ctf_field *bt_ctf_field_floating_point_create( |
| 985 | struct bt_ctf_field_type *type) |
| 986 | { |
| 987 | struct bt_ctf_field_floating_point *floating_point; |
| 988 | struct bt_ctf_field_type_floating_point *floating_point_type; |
| 989 | |
| 990 | floating_point = g_new0(struct bt_ctf_field_floating_point, 1); |
| 991 | if (!floating_point) { |
| 992 | goto end; |
| 993 | } |
| 994 | |
| 995 | floating_point_type = container_of(type, |
| 996 | struct bt_ctf_field_type_floating_point, parent); |
| 997 | floating_point->definition.declaration = container_of( |
| 998 | type->declaration, struct declaration_float, p); |
| 999 | |
| 1000 | |
| 1001 | floating_point->definition.sign = &floating_point->sign; |
| 1002 | floating_point->sign.declaration = &floating_point_type->sign; |
| 1003 | floating_point->definition.sign->p.declaration = |
| 1004 | &floating_point_type->sign.p; |
| 1005 | |
| 1006 | floating_point->definition.mantissa = &floating_point->mantissa; |
| 1007 | floating_point->mantissa.declaration = &floating_point_type->mantissa; |
| 1008 | floating_point->definition.mantissa->p.declaration = |
| 1009 | &floating_point_type->mantissa.p; |
| 1010 | |
| 1011 | floating_point->definition.exp = &floating_point->exp; |
| 1012 | floating_point->exp.declaration = &floating_point_type->exp; |
| 1013 | floating_point->definition.exp->p.declaration = |
| 1014 | &floating_point_type->exp.p; |
| 1015 | |
| 1016 | end: |
| 1017 | return floating_point ? &floating_point->parent : NULL; |
| 1018 | } |
| 1019 | |
| 1020 | static |
| 1021 | struct bt_ctf_field *bt_ctf_field_structure_create( |
| 1022 | struct bt_ctf_field_type *type) |
| 1023 | { |
| 1024 | struct bt_ctf_field_type_structure *structure_type = container_of(type, |
| 1025 | struct bt_ctf_field_type_structure, parent); |
| 1026 | struct bt_ctf_field_structure *structure = g_new0( |
| 1027 | struct bt_ctf_field_structure, 1); |
| 1028 | struct bt_ctf_field *field = NULL; |
| 1029 | |
| 1030 | if (!structure || !structure_type->fields->len) { |
| 1031 | goto end; |
| 1032 | } |
| 1033 | |
| 1034 | structure->field_name_to_index = structure_type->field_name_to_index; |
| 1035 | structure->fields = g_ptr_array_new_with_free_func( |
| 1036 | (GDestroyNotify)bt_ctf_field_put); |
| 1037 | g_ptr_array_set_size(structure->fields, |
| 1038 | g_hash_table_size(structure->field_name_to_index)); |
| 1039 | field = &structure->parent; |
| 1040 | end: |
| 1041 | return field; |
| 1042 | } |
| 1043 | |
| 1044 | static |
| 1045 | struct bt_ctf_field *bt_ctf_field_variant_create(struct bt_ctf_field_type *type) |
| 1046 | { |
| 1047 | struct bt_ctf_field_variant *variant = g_new0( |
| 1048 | struct bt_ctf_field_variant, 1); |
| 1049 | return variant ? &variant->parent : NULL; |
| 1050 | } |
| 1051 | |
| 1052 | static |
| 1053 | struct bt_ctf_field *bt_ctf_field_array_create(struct bt_ctf_field_type *type) |
| 1054 | { |
| 1055 | struct bt_ctf_field_array *array = g_new0(struct bt_ctf_field_array, 1); |
| 1056 | struct bt_ctf_field_type_array *array_type; |
| 1057 | unsigned int array_length; |
| 1058 | |
| 1059 | if (!array || !type) { |
| 1060 | goto error; |
| 1061 | } |
| 1062 | |
| 1063 | array_type = container_of(type, struct bt_ctf_field_type_array, parent); |
| 1064 | array_length = array_type->length; |
| 1065 | array->elements = g_ptr_array_sized_new(array_length); |
| 1066 | if (!array->elements) { |
| 1067 | goto error; |
| 1068 | } |
| 1069 | |
| 1070 | g_ptr_array_set_free_func(array->elements, |
| 1071 | (GDestroyNotify)bt_ctf_field_put); |
| 1072 | g_ptr_array_set_size(array->elements, array_length); |
| 1073 | return &array->parent; |
| 1074 | error: |
| 1075 | g_free(array); |
| 1076 | return NULL; |
| 1077 | } |
| 1078 | |
| 1079 | static |
| 1080 | struct bt_ctf_field *bt_ctf_field_sequence_create( |
| 1081 | struct bt_ctf_field_type *type) |
| 1082 | { |
| 1083 | struct bt_ctf_field_sequence *sequence = g_new0( |
| 1084 | struct bt_ctf_field_sequence, 1); |
| 1085 | return sequence ? &sequence->parent : NULL; |
| 1086 | } |
| 1087 | |
| 1088 | static |
| 1089 | struct bt_ctf_field *bt_ctf_field_string_create(struct bt_ctf_field_type *type) |
| 1090 | { |
| 1091 | struct bt_ctf_field_string *string = g_new0( |
| 1092 | struct bt_ctf_field_string, 1); |
| 1093 | return string ? &string->parent : NULL; |
| 1094 | } |
| 1095 | |
| 1096 | static |
| 1097 | void bt_ctf_field_destroy(struct bt_ctf_ref *ref) |
| 1098 | { |
| 1099 | struct bt_ctf_field *field; |
| 1100 | struct bt_ctf_field_type *type; |
| 1101 | enum ctf_type_id type_id; |
| 1102 | |
| 1103 | if (!ref) { |
| 1104 | return; |
| 1105 | } |
| 1106 | |
| 1107 | field = container_of(ref, struct bt_ctf_field, ref_count); |
| 1108 | type = field->type; |
| 1109 | type_id = bt_ctf_field_type_get_type_id(type); |
| 1110 | if (type_id <= CTF_TYPE_UNKNOWN || |
| 1111 | type_id >= NR_CTF_TYPES) { |
| 1112 | return; |
| 1113 | } |
| 1114 | |
| 1115 | field_destroy_funcs[type_id](field); |
| 1116 | if (type) { |
| 1117 | bt_ctf_field_type_put(type); |
| 1118 | } |
| 1119 | } |
| 1120 | |
| 1121 | static |
| 1122 | void bt_ctf_field_integer_destroy(struct bt_ctf_field *field) |
| 1123 | { |
| 1124 | struct bt_ctf_field_integer *integer; |
| 1125 | |
| 1126 | if (!field) { |
| 1127 | return; |
| 1128 | } |
| 1129 | |
| 1130 | integer = container_of(field, struct bt_ctf_field_integer, parent); |
| 1131 | g_free(integer); |
| 1132 | } |
| 1133 | |
| 1134 | static |
| 1135 | void bt_ctf_field_enumeration_destroy(struct bt_ctf_field *field) |
| 1136 | { |
| 1137 | struct bt_ctf_field_enumeration *enumeration; |
| 1138 | |
| 1139 | if (!field) { |
| 1140 | return; |
| 1141 | } |
| 1142 | |
| 1143 | enumeration = container_of(field, struct bt_ctf_field_enumeration, |
| 1144 | parent); |
| 1145 | bt_ctf_field_put(enumeration->payload); |
| 1146 | g_free(enumeration); |
| 1147 | } |
| 1148 | |
| 1149 | static |
| 1150 | void bt_ctf_field_floating_point_destroy(struct bt_ctf_field *field) |
| 1151 | { |
| 1152 | struct bt_ctf_field_floating_point *floating_point; |
| 1153 | |
| 1154 | if (!field) { |
| 1155 | return; |
| 1156 | } |
| 1157 | |
| 1158 | floating_point = container_of(field, struct bt_ctf_field_floating_point, |
| 1159 | parent); |
| 1160 | g_free(floating_point); |
| 1161 | } |
| 1162 | |
| 1163 | static |
| 1164 | void bt_ctf_field_structure_destroy(struct bt_ctf_field *field) |
| 1165 | { |
| 1166 | struct bt_ctf_field_structure *structure; |
| 1167 | |
| 1168 | if (!field) { |
| 1169 | return; |
| 1170 | } |
| 1171 | |
| 1172 | structure = container_of(field, struct bt_ctf_field_structure, parent); |
| 1173 | g_ptr_array_free(structure->fields, TRUE); |
| 1174 | g_free(structure); |
| 1175 | } |
| 1176 | |
| 1177 | static |
| 1178 | void bt_ctf_field_variant_destroy(struct bt_ctf_field *field) |
| 1179 | { |
| 1180 | struct bt_ctf_field_variant *variant; |
| 1181 | |
| 1182 | if (!field) { |
| 1183 | return; |
| 1184 | } |
| 1185 | |
| 1186 | variant = container_of(field, struct bt_ctf_field_variant, parent); |
| 1187 | bt_ctf_field_put(variant->tag); |
| 1188 | bt_ctf_field_put(variant->payload); |
| 1189 | g_free(variant); |
| 1190 | } |
| 1191 | |
| 1192 | static |
| 1193 | void bt_ctf_field_array_destroy(struct bt_ctf_field *field) |
| 1194 | { |
| 1195 | struct bt_ctf_field_array *array; |
| 1196 | |
| 1197 | if (!field) { |
| 1198 | return; |
| 1199 | } |
| 1200 | |
| 1201 | array = container_of(field, struct bt_ctf_field_array, parent); |
| 1202 | g_ptr_array_free(array->elements, TRUE); |
| 1203 | g_free(array); |
| 1204 | } |
| 1205 | |
| 1206 | static |
| 1207 | void bt_ctf_field_sequence_destroy(struct bt_ctf_field *field) |
| 1208 | { |
| 1209 | struct bt_ctf_field_sequence *sequence; |
| 1210 | |
| 1211 | if (!field) { |
| 1212 | return; |
| 1213 | } |
| 1214 | |
| 1215 | sequence = container_of(field, struct bt_ctf_field_sequence, parent); |
| 1216 | g_ptr_array_free(sequence->elements, TRUE); |
| 1217 | bt_ctf_field_put(sequence->length); |
| 1218 | g_free(sequence); |
| 1219 | } |
| 1220 | |
| 1221 | static |
| 1222 | void bt_ctf_field_string_destroy(struct bt_ctf_field *field) |
| 1223 | { |
| 1224 | struct bt_ctf_field_string *string; |
| 1225 | if (!field) { |
| 1226 | return; |
| 1227 | } |
| 1228 | |
| 1229 | string = container_of(field, struct bt_ctf_field_string, parent); |
| 1230 | g_string_free(string->payload, TRUE); |
| 1231 | g_free(string); |
| 1232 | } |
| 1233 | |
| 1234 | static |
| 1235 | int bt_ctf_field_generic_validate(struct bt_ctf_field *field) |
| 1236 | { |
| 1237 | return (field && field->payload_set) ? 0 : -1; |
| 1238 | } |
| 1239 | |
| 1240 | static |
| 1241 | int bt_ctf_field_enumeration_validate(struct bt_ctf_field *field) |
| 1242 | { |
| 1243 | int ret; |
| 1244 | struct bt_ctf_field_enumeration *enumeration; |
| 1245 | |
| 1246 | if (!field) { |
| 1247 | ret = -1; |
| 1248 | goto end; |
| 1249 | } |
| 1250 | |
| 1251 | enumeration = container_of(field, struct bt_ctf_field_enumeration, |
| 1252 | parent); |
| 1253 | if (!enumeration->payload) { |
| 1254 | ret = -1; |
| 1255 | goto end; |
| 1256 | } |
| 1257 | |
| 1258 | ret = bt_ctf_field_validate(enumeration->payload); |
| 1259 | end: |
| 1260 | return ret; |
| 1261 | } |
| 1262 | |
| 1263 | static |
| 1264 | int bt_ctf_field_structure_validate(struct bt_ctf_field *field) |
| 1265 | { |
| 1266 | size_t i; |
| 1267 | int ret = 0; |
| 1268 | struct bt_ctf_field_structure *structure; |
| 1269 | |
| 1270 | if (!field) { |
| 1271 | ret = -1; |
| 1272 | goto end; |
| 1273 | } |
| 1274 | |
| 1275 | structure = container_of(field, struct bt_ctf_field_structure, parent); |
| 1276 | for (i = 0; i < structure->fields->len; i++) { |
| 1277 | ret = bt_ctf_field_validate(structure->fields->pdata[i]); |
| 1278 | if (ret) { |
| 1279 | goto end; |
| 1280 | } |
| 1281 | } |
| 1282 | end: |
| 1283 | return ret; |
| 1284 | } |
| 1285 | |
| 1286 | static |
| 1287 | int bt_ctf_field_variant_validate(struct bt_ctf_field *field) |
| 1288 | { |
| 1289 | int ret = 0; |
| 1290 | struct bt_ctf_field_variant *variant; |
| 1291 | |
| 1292 | if (!field) { |
| 1293 | ret = -1; |
| 1294 | goto end; |
| 1295 | } |
| 1296 | |
| 1297 | variant = container_of(field, struct bt_ctf_field_variant, parent); |
| 1298 | ret = bt_ctf_field_validate(variant->payload); |
| 1299 | end: |
| 1300 | return ret; |
| 1301 | } |
| 1302 | |
| 1303 | static |
| 1304 | int bt_ctf_field_array_validate(struct bt_ctf_field *field) |
| 1305 | { |
| 1306 | size_t i; |
| 1307 | int ret = 0; |
| 1308 | struct bt_ctf_field_array *array; |
| 1309 | |
| 1310 | if (!field) { |
| 1311 | ret = -1; |
| 1312 | goto end; |
| 1313 | } |
| 1314 | |
| 1315 | array = container_of(field, struct bt_ctf_field_array, parent); |
| 1316 | for (i = 0; i < array->elements->len; i++) { |
| 1317 | ret = bt_ctf_field_validate(array->elements->pdata[i]); |
| 1318 | if (ret) { |
| 1319 | goto end; |
| 1320 | } |
| 1321 | } |
| 1322 | end: |
| 1323 | return ret; |
| 1324 | } |
| 1325 | |
| 1326 | static |
| 1327 | int bt_ctf_field_sequence_validate(struct bt_ctf_field *field) |
| 1328 | { |
| 1329 | size_t i; |
| 1330 | int ret = 0; |
| 1331 | struct bt_ctf_field_sequence *sequence; |
| 1332 | |
| 1333 | if (!field) { |
| 1334 | ret = -1; |
| 1335 | goto end; |
| 1336 | } |
| 1337 | |
| 1338 | sequence = container_of(field, struct bt_ctf_field_sequence, parent); |
| 1339 | for (i = 0; i < sequence->elements->len; i++) { |
| 1340 | ret = bt_ctf_field_validate(sequence->elements->pdata[i]); |
| 1341 | if (ret) { |
| 1342 | goto end; |
| 1343 | } |
| 1344 | } |
| 1345 | end: |
| 1346 | return ret; |
| 1347 | } |
| 1348 | |
| 1349 | static |
| 1350 | int bt_ctf_field_generic_reset(struct bt_ctf_field *field) |
| 1351 | { |
| 1352 | int ret = 0; |
| 1353 | |
| 1354 | if (!field) { |
| 1355 | ret = -1; |
| 1356 | goto end; |
| 1357 | } |
| 1358 | |
| 1359 | field->payload_set = 0; |
| 1360 | end: |
| 1361 | return ret; |
| 1362 | } |
| 1363 | |
| 1364 | static |
| 1365 | int bt_ctf_field_enumeration_reset(struct bt_ctf_field *field) |
| 1366 | { |
| 1367 | int ret = 0; |
| 1368 | struct bt_ctf_field_enumeration *enumeration; |
| 1369 | |
| 1370 | if (!field) { |
| 1371 | ret = -1; |
| 1372 | goto end; |
| 1373 | } |
| 1374 | |
| 1375 | enumeration = container_of(field, struct bt_ctf_field_enumeration, |
| 1376 | parent); |
| 1377 | if (!enumeration->payload) { |
| 1378 | goto end; |
| 1379 | } |
| 1380 | |
| 1381 | ret = bt_ctf_field_reset(enumeration->payload); |
| 1382 | end: |
| 1383 | return ret; |
| 1384 | } |
| 1385 | |
| 1386 | static |
| 1387 | int bt_ctf_field_structure_reset(struct bt_ctf_field *field) |
| 1388 | { |
| 1389 | size_t i; |
| 1390 | int ret = 0; |
| 1391 | struct bt_ctf_field_structure *structure; |
| 1392 | |
| 1393 | if (!field) { |
| 1394 | ret = -1; |
| 1395 | goto end; |
| 1396 | } |
| 1397 | |
| 1398 | structure = container_of(field, struct bt_ctf_field_structure, parent); |
| 1399 | for (i = 0; i < structure->fields->len; i++) { |
| 1400 | struct bt_ctf_field *member = structure->fields->pdata[i]; |
| 1401 | |
| 1402 | if (!member) { |
| 1403 | /* |
| 1404 | * Structure members are lazily initialized; skip if |
| 1405 | * this member has not been allocated yet. |
| 1406 | */ |
| 1407 | continue; |
| 1408 | } |
| 1409 | |
| 1410 | ret = bt_ctf_field_reset(member); |
| 1411 | if (ret) { |
| 1412 | goto end; |
| 1413 | } |
| 1414 | } |
| 1415 | end: |
| 1416 | return ret; |
| 1417 | } |
| 1418 | |
| 1419 | static |
| 1420 | int bt_ctf_field_variant_reset(struct bt_ctf_field *field) |
| 1421 | { |
| 1422 | int ret = 0; |
| 1423 | struct bt_ctf_field_variant *variant; |
| 1424 | |
| 1425 | if (!field) { |
| 1426 | ret = -1; |
| 1427 | goto end; |
| 1428 | } |
| 1429 | |
| 1430 | variant = container_of(field, struct bt_ctf_field_variant, parent); |
| 1431 | if (variant->payload) { |
| 1432 | ret = bt_ctf_field_reset(variant->payload); |
| 1433 | } |
| 1434 | end: |
| 1435 | return ret; |
| 1436 | } |
| 1437 | |
| 1438 | static |
| 1439 | int bt_ctf_field_array_reset(struct bt_ctf_field *field) |
| 1440 | { |
| 1441 | size_t i; |
| 1442 | int ret = 0; |
| 1443 | struct bt_ctf_field_array *array; |
| 1444 | |
| 1445 | if (!field) { |
| 1446 | ret = -1; |
| 1447 | goto end; |
| 1448 | } |
| 1449 | |
| 1450 | array = container_of(field, struct bt_ctf_field_array, parent); |
| 1451 | for (i = 0; i < array->elements->len; i++) { |
| 1452 | struct bt_ctf_field *member = array->elements->pdata[i]; |
| 1453 | |
| 1454 | if (!member) { |
| 1455 | /* |
| 1456 | * Array elements are lazily initialized; skip if |
| 1457 | * this member has not been allocated yet. |
| 1458 | */ |
| 1459 | continue; |
| 1460 | } |
| 1461 | |
| 1462 | ret = bt_ctf_field_reset(member); |
| 1463 | if (ret) { |
| 1464 | goto end; |
| 1465 | } |
| 1466 | } |
| 1467 | end: |
| 1468 | return ret; |
| 1469 | } |
| 1470 | |
| 1471 | static |
| 1472 | int bt_ctf_field_sequence_reset(struct bt_ctf_field *field) |
| 1473 | { |
| 1474 | size_t i; |
| 1475 | int ret = 0; |
| 1476 | struct bt_ctf_field_sequence *sequence; |
| 1477 | |
| 1478 | if (!field) { |
| 1479 | ret = -1; |
| 1480 | goto end; |
| 1481 | } |
| 1482 | |
| 1483 | sequence = container_of(field, struct bt_ctf_field_sequence, parent); |
| 1484 | for (i = 0; i < sequence->elements->len; i++) { |
| 1485 | struct bt_ctf_field *member = sequence->elements->pdata[i]; |
| 1486 | |
| 1487 | if (!member) { |
| 1488 | /* |
| 1489 | * Sequence elements are lazily initialized; skip if |
| 1490 | * this member has not been allocated yet. |
| 1491 | */ |
| 1492 | continue; |
| 1493 | } |
| 1494 | |
| 1495 | ret = bt_ctf_field_reset(member); |
| 1496 | if (ret) { |
| 1497 | goto end; |
| 1498 | } |
| 1499 | } |
| 1500 | end: |
| 1501 | return ret; |
| 1502 | } |
| 1503 | |
| 1504 | static |
| 1505 | int bt_ctf_field_string_reset(struct bt_ctf_field *field) |
| 1506 | { |
| 1507 | int ret = 0; |
| 1508 | struct bt_ctf_field_string *string; |
| 1509 | |
| 1510 | if (!field) { |
| 1511 | ret = -1; |
| 1512 | goto end; |
| 1513 | } |
| 1514 | |
| 1515 | ret = bt_ctf_field_generic_reset(field); |
| 1516 | if (ret) { |
| 1517 | goto end; |
| 1518 | } |
| 1519 | |
| 1520 | string = container_of(field, struct bt_ctf_field_string, parent); |
| 1521 | if (string->payload) { |
| 1522 | g_string_truncate(string->payload, 0); |
| 1523 | } |
| 1524 | end: |
| 1525 | return ret; |
| 1526 | } |
| 1527 | |
| 1528 | static |
| 1529 | int bt_ctf_field_integer_serialize(struct bt_ctf_field *field, |
| 1530 | struct ctf_stream_pos *pos) |
| 1531 | { |
| 1532 | int ret = 0; |
| 1533 | struct bt_ctf_field_integer *integer = container_of(field, |
| 1534 | struct bt_ctf_field_integer, parent); |
| 1535 | |
| 1536 | retry: |
| 1537 | ret = ctf_integer_write(&pos->parent, &integer->definition.p); |
| 1538 | if (ret == -EFAULT) { |
| 1539 | /* |
| 1540 | * The field is too large to fit in the current packet's |
| 1541 | * remaining space. Bump the packet size and retry. |
| 1542 | */ |
| 1543 | ret = increase_packet_size(pos); |
| 1544 | if (ret) { |
| 1545 | goto end; |
| 1546 | } |
| 1547 | goto retry; |
| 1548 | } |
| 1549 | end: |
| 1550 | return ret; |
| 1551 | } |
| 1552 | |
| 1553 | static |
| 1554 | int bt_ctf_field_enumeration_serialize(struct bt_ctf_field *field, |
| 1555 | struct ctf_stream_pos *pos) |
| 1556 | { |
| 1557 | struct bt_ctf_field_enumeration *enumeration = container_of( |
| 1558 | field, struct bt_ctf_field_enumeration, parent); |
| 1559 | |
| 1560 | return bt_ctf_field_serialize(enumeration->payload, pos); |
| 1561 | } |
| 1562 | |
| 1563 | static |
| 1564 | int bt_ctf_field_floating_point_serialize(struct bt_ctf_field *field, |
| 1565 | struct ctf_stream_pos *pos) |
| 1566 | { |
| 1567 | int ret = 0; |
| 1568 | struct bt_ctf_field_floating_point *floating_point = container_of(field, |
| 1569 | struct bt_ctf_field_floating_point, parent); |
| 1570 | |
| 1571 | retry: |
| 1572 | ret = ctf_float_write(&pos->parent, &floating_point->definition.p); |
| 1573 | if (ret == -EFAULT) { |
| 1574 | /* |
| 1575 | * The field is too large to fit in the current packet's |
| 1576 | * remaining space. Bump the packet size and retry. |
| 1577 | */ |
| 1578 | ret = increase_packet_size(pos); |
| 1579 | if (ret) { |
| 1580 | goto end; |
| 1581 | } |
| 1582 | goto retry; |
| 1583 | } |
| 1584 | end: |
| 1585 | return ret; |
| 1586 | } |
| 1587 | |
| 1588 | static |
| 1589 | int bt_ctf_field_structure_serialize(struct bt_ctf_field *field, |
| 1590 | struct ctf_stream_pos *pos) |
| 1591 | { |
| 1592 | size_t i; |
| 1593 | int ret = 0; |
| 1594 | struct bt_ctf_field_structure *structure = container_of( |
| 1595 | field, struct bt_ctf_field_structure, parent); |
| 1596 | |
| 1597 | while (!ctf_pos_access_ok(pos, |
| 1598 | offset_align(pos->offset, |
| 1599 | field->type->declaration->alignment))) { |
| 1600 | ret = increase_packet_size(pos); |
| 1601 | if (ret) { |
| 1602 | goto end; |
| 1603 | } |
| 1604 | } |
| 1605 | |
| 1606 | if (!ctf_align_pos(pos, field->type->declaration->alignment)) { |
| 1607 | ret = -1; |
| 1608 | goto end; |
| 1609 | } |
| 1610 | |
| 1611 | for (i = 0; i < structure->fields->len; i++) { |
| 1612 | struct bt_ctf_field *field = g_ptr_array_index( |
| 1613 | structure->fields, i); |
| 1614 | |
| 1615 | ret = bt_ctf_field_serialize(field, pos); |
| 1616 | if (ret) { |
| 1617 | break; |
| 1618 | } |
| 1619 | } |
| 1620 | end: |
| 1621 | return ret; |
| 1622 | } |
| 1623 | |
| 1624 | static |
| 1625 | int bt_ctf_field_variant_serialize(struct bt_ctf_field *field, |
| 1626 | struct ctf_stream_pos *pos) |
| 1627 | { |
| 1628 | struct bt_ctf_field_variant *variant = container_of( |
| 1629 | field, struct bt_ctf_field_variant, parent); |
| 1630 | |
| 1631 | return bt_ctf_field_serialize(variant->payload, pos); |
| 1632 | } |
| 1633 | |
| 1634 | static |
| 1635 | int bt_ctf_field_array_serialize(struct bt_ctf_field *field, |
| 1636 | struct ctf_stream_pos *pos) |
| 1637 | { |
| 1638 | size_t i; |
| 1639 | int ret = 0; |
| 1640 | struct bt_ctf_field_array *array = container_of( |
| 1641 | field, struct bt_ctf_field_array, parent); |
| 1642 | |
| 1643 | for (i = 0; i < array->elements->len; i++) { |
| 1644 | ret = bt_ctf_field_serialize( |
| 1645 | g_ptr_array_index(array->elements, i), pos); |
| 1646 | if (ret) { |
| 1647 | goto end; |
| 1648 | } |
| 1649 | } |
| 1650 | end: |
| 1651 | return ret; |
| 1652 | } |
| 1653 | |
| 1654 | static |
| 1655 | int bt_ctf_field_sequence_serialize(struct bt_ctf_field *field, |
| 1656 | struct ctf_stream_pos *pos) |
| 1657 | { |
| 1658 | size_t i; |
| 1659 | int ret = 0; |
| 1660 | struct bt_ctf_field_sequence *sequence = container_of( |
| 1661 | field, struct bt_ctf_field_sequence, parent); |
| 1662 | |
| 1663 | for (i = 0; i < sequence->elements->len; i++) { |
| 1664 | ret = bt_ctf_field_serialize( |
| 1665 | g_ptr_array_index(sequence->elements, i), pos); |
| 1666 | if (ret) { |
| 1667 | goto end; |
| 1668 | } |
| 1669 | } |
| 1670 | end: |
| 1671 | return ret; |
| 1672 | } |
| 1673 | |
| 1674 | static |
| 1675 | int bt_ctf_field_string_serialize(struct bt_ctf_field *field, |
| 1676 | struct ctf_stream_pos *pos) |
| 1677 | { |
| 1678 | size_t i; |
| 1679 | int ret = 0; |
| 1680 | struct bt_ctf_field_string *string = container_of(field, |
| 1681 | struct bt_ctf_field_string, parent); |
| 1682 | struct bt_ctf_field_type *character_type = |
| 1683 | get_field_type(FIELD_TYPE_ALIAS_UINT8_T); |
| 1684 | struct bt_ctf_field *character = bt_ctf_field_create(character_type); |
| 1685 | |
| 1686 | for (i = 0; i < string->payload->len + 1; i++) { |
| 1687 | ret = bt_ctf_field_unsigned_integer_set_value(character, |
| 1688 | (uint64_t) string->payload->str[i]); |
| 1689 | if (ret) { |
| 1690 | goto end; |
| 1691 | } |
| 1692 | |
| 1693 | ret = bt_ctf_field_integer_serialize(character, pos); |
| 1694 | if (ret) { |
| 1695 | goto end; |
| 1696 | } |
| 1697 | } |
| 1698 | end: |
| 1699 | bt_ctf_field_put(character); |
| 1700 | bt_ctf_field_type_put(character_type); |
| 1701 | return ret; |
| 1702 | } |
| 1703 | |
| 1704 | static |
| 1705 | int increase_packet_size(struct ctf_stream_pos *pos) |
| 1706 | { |
| 1707 | int ret; |
| 1708 | |
| 1709 | assert(pos); |
| 1710 | ret = munmap_align(pos->base_mma); |
| 1711 | if (ret) { |
| 1712 | goto end; |
| 1713 | } |
| 1714 | |
| 1715 | pos->packet_size += PACKET_LEN_INCREMENT; |
| 1716 | ret = posix_fallocate(pos->fd, pos->mmap_offset, |
| 1717 | pos->packet_size / CHAR_BIT); |
| 1718 | if (ret) { |
| 1719 | goto end; |
| 1720 | } |
| 1721 | |
| 1722 | pos->base_mma = mmap_align(pos->packet_size / CHAR_BIT, pos->prot, |
| 1723 | pos->flags, pos->fd, pos->mmap_offset); |
| 1724 | if (pos->base_mma == MAP_FAILED) { |
| 1725 | ret = -1; |
| 1726 | } |
| 1727 | end: |
| 1728 | return ret; |
| 1729 | } |