| 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/ctf-ir/common-internal.h> |
| 33 | #include <babeltrace/ctf-ir/ref.h> |
| 34 | #include <babeltrace/compiler.h> |
| 35 | |
| 36 | #define PACKET_LEN_INCREMENT (getpagesize() * 8 * CHAR_BIT) |
| 37 | |
| 38 | static |
| 39 | struct bt_ctf_field *bt_ctf_field_integer_create(struct bt_ctf_field_type *); |
| 40 | static |
| 41 | struct bt_ctf_field *bt_ctf_field_enumeration_create( |
| 42 | struct bt_ctf_field_type *); |
| 43 | static |
| 44 | struct bt_ctf_field *bt_ctf_field_floating_point_create( |
| 45 | struct bt_ctf_field_type *); |
| 46 | static |
| 47 | struct bt_ctf_field *bt_ctf_field_structure_create( |
| 48 | struct bt_ctf_field_type *); |
| 49 | static |
| 50 | struct bt_ctf_field *bt_ctf_field_variant_create( |
| 51 | struct bt_ctf_field_type *); |
| 52 | static |
| 53 | struct bt_ctf_field *bt_ctf_field_array_create( |
| 54 | struct bt_ctf_field_type *); |
| 55 | static |
| 56 | struct bt_ctf_field *bt_ctf_field_sequence_create( |
| 57 | struct bt_ctf_field_type *); |
| 58 | static |
| 59 | struct bt_ctf_field *bt_ctf_field_string_create(struct bt_ctf_field_type *); |
| 60 | |
| 61 | static |
| 62 | void bt_ctf_field_destroy(struct bt_ref *); |
| 63 | static |
| 64 | void bt_ctf_field_integer_destroy(struct bt_ctf_field *); |
| 65 | static |
| 66 | void bt_ctf_field_enumeration_destroy(struct bt_ctf_field *); |
| 67 | static |
| 68 | void bt_ctf_field_floating_point_destroy(struct bt_ctf_field *); |
| 69 | static |
| 70 | void bt_ctf_field_structure_destroy(struct bt_ctf_field *); |
| 71 | static |
| 72 | void bt_ctf_field_variant_destroy(struct bt_ctf_field *); |
| 73 | static |
| 74 | void bt_ctf_field_array_destroy(struct bt_ctf_field *); |
| 75 | static |
| 76 | void bt_ctf_field_sequence_destroy(struct bt_ctf_field *); |
| 77 | static |
| 78 | void bt_ctf_field_string_destroy(struct bt_ctf_field *); |
| 79 | |
| 80 | static |
| 81 | int bt_ctf_field_generic_validate(struct bt_ctf_field *); |
| 82 | static |
| 83 | int bt_ctf_field_structure_validate(struct bt_ctf_field *); |
| 84 | static |
| 85 | int bt_ctf_field_variant_validate(struct bt_ctf_field *); |
| 86 | static |
| 87 | int bt_ctf_field_enumeration_validate(struct bt_ctf_field *); |
| 88 | static |
| 89 | int bt_ctf_field_array_validate(struct bt_ctf_field *); |
| 90 | static |
| 91 | int bt_ctf_field_sequence_validate(struct bt_ctf_field *); |
| 92 | |
| 93 | static |
| 94 | int bt_ctf_field_generic_reset(struct bt_ctf_field *); |
| 95 | static |
| 96 | int bt_ctf_field_structure_reset(struct bt_ctf_field *); |
| 97 | static |
| 98 | int bt_ctf_field_variant_reset(struct bt_ctf_field *); |
| 99 | static |
| 100 | int bt_ctf_field_enumeration_reset(struct bt_ctf_field *); |
| 101 | static |
| 102 | int bt_ctf_field_array_reset(struct bt_ctf_field *); |
| 103 | static |
| 104 | int bt_ctf_field_sequence_reset(struct bt_ctf_field *); |
| 105 | static |
| 106 | int bt_ctf_field_string_reset(struct bt_ctf_field *); |
| 107 | |
| 108 | static |
| 109 | int bt_ctf_field_integer_serialize(struct bt_ctf_field *, |
| 110 | struct ctf_stream_pos *); |
| 111 | static |
| 112 | int bt_ctf_field_enumeration_serialize(struct bt_ctf_field *, |
| 113 | struct ctf_stream_pos *); |
| 114 | static |
| 115 | int bt_ctf_field_floating_point_serialize(struct bt_ctf_field *, |
| 116 | struct ctf_stream_pos *); |
| 117 | static |
| 118 | int bt_ctf_field_structure_serialize(struct bt_ctf_field *, |
| 119 | struct ctf_stream_pos *); |
| 120 | static |
| 121 | int bt_ctf_field_variant_serialize(struct bt_ctf_field *, |
| 122 | struct ctf_stream_pos *); |
| 123 | static |
| 124 | int bt_ctf_field_array_serialize(struct bt_ctf_field *, |
| 125 | struct ctf_stream_pos *); |
| 126 | static |
| 127 | int bt_ctf_field_sequence_serialize(struct bt_ctf_field *, |
| 128 | struct ctf_stream_pos *); |
| 129 | static |
| 130 | int bt_ctf_field_string_serialize(struct bt_ctf_field *, |
| 131 | struct ctf_stream_pos *); |
| 132 | |
| 133 | static |
| 134 | int bt_ctf_field_integer_copy(struct bt_ctf_field *, struct bt_ctf_field *); |
| 135 | static |
| 136 | int bt_ctf_field_enumeration_copy(struct bt_ctf_field *, struct bt_ctf_field *); |
| 137 | static |
| 138 | int bt_ctf_field_floating_point_copy(struct bt_ctf_field *, |
| 139 | struct bt_ctf_field *); |
| 140 | static |
| 141 | int bt_ctf_field_structure_copy(struct bt_ctf_field *, struct bt_ctf_field *); |
| 142 | static |
| 143 | int bt_ctf_field_variant_copy(struct bt_ctf_field *, struct bt_ctf_field *); |
| 144 | static |
| 145 | int bt_ctf_field_array_copy(struct bt_ctf_field *, struct bt_ctf_field *); |
| 146 | static |
| 147 | int bt_ctf_field_sequence_copy(struct bt_ctf_field *, struct bt_ctf_field *); |
| 148 | static |
| 149 | int bt_ctf_field_string_copy(struct bt_ctf_field *, struct bt_ctf_field *); |
| 150 | |
| 151 | static |
| 152 | int increase_packet_size(struct ctf_stream_pos *pos); |
| 153 | |
| 154 | static |
| 155 | struct bt_ctf_field *(* const field_create_funcs[])( |
| 156 | struct bt_ctf_field_type *) = { |
| 157 | [CTF_TYPE_INTEGER] = bt_ctf_field_integer_create, |
| 158 | [CTF_TYPE_ENUM] = bt_ctf_field_enumeration_create, |
| 159 | [CTF_TYPE_FLOAT] = |
| 160 | bt_ctf_field_floating_point_create, |
| 161 | [CTF_TYPE_STRUCT] = bt_ctf_field_structure_create, |
| 162 | [CTF_TYPE_VARIANT] = bt_ctf_field_variant_create, |
| 163 | [CTF_TYPE_ARRAY] = bt_ctf_field_array_create, |
| 164 | [CTF_TYPE_SEQUENCE] = bt_ctf_field_sequence_create, |
| 165 | [CTF_TYPE_STRING] = bt_ctf_field_string_create, |
| 166 | }; |
| 167 | |
| 168 | static |
| 169 | void (* const field_destroy_funcs[])(struct bt_ctf_field *) = { |
| 170 | [CTF_TYPE_INTEGER] = bt_ctf_field_integer_destroy, |
| 171 | [CTF_TYPE_ENUM] = bt_ctf_field_enumeration_destroy, |
| 172 | [CTF_TYPE_FLOAT] = |
| 173 | bt_ctf_field_floating_point_destroy, |
| 174 | [CTF_TYPE_STRUCT] = bt_ctf_field_structure_destroy, |
| 175 | [CTF_TYPE_VARIANT] = bt_ctf_field_variant_destroy, |
| 176 | [CTF_TYPE_ARRAY] = bt_ctf_field_array_destroy, |
| 177 | [CTF_TYPE_SEQUENCE] = bt_ctf_field_sequence_destroy, |
| 178 | [CTF_TYPE_STRING] = bt_ctf_field_string_destroy, |
| 179 | }; |
| 180 | |
| 181 | static |
| 182 | int (* const field_validate_funcs[])(struct bt_ctf_field *) = { |
| 183 | [CTF_TYPE_INTEGER] = bt_ctf_field_generic_validate, |
| 184 | [CTF_TYPE_ENUM] = bt_ctf_field_enumeration_validate, |
| 185 | [CTF_TYPE_FLOAT] = bt_ctf_field_generic_validate, |
| 186 | [CTF_TYPE_STRUCT] = bt_ctf_field_structure_validate, |
| 187 | [CTF_TYPE_VARIANT] = bt_ctf_field_variant_validate, |
| 188 | [CTF_TYPE_ARRAY] = bt_ctf_field_array_validate, |
| 189 | [CTF_TYPE_SEQUENCE] = bt_ctf_field_sequence_validate, |
| 190 | [CTF_TYPE_STRING] = bt_ctf_field_generic_validate, |
| 191 | }; |
| 192 | |
| 193 | static |
| 194 | int (* const field_reset_funcs[])(struct bt_ctf_field *) = { |
| 195 | [CTF_TYPE_INTEGER] = bt_ctf_field_generic_reset, |
| 196 | [CTF_TYPE_ENUM] = bt_ctf_field_enumeration_reset, |
| 197 | [CTF_TYPE_FLOAT] = bt_ctf_field_generic_reset, |
| 198 | [CTF_TYPE_STRUCT] = bt_ctf_field_structure_reset, |
| 199 | [CTF_TYPE_VARIANT] = bt_ctf_field_variant_reset, |
| 200 | [CTF_TYPE_ARRAY] = bt_ctf_field_array_reset, |
| 201 | [CTF_TYPE_SEQUENCE] = bt_ctf_field_sequence_reset, |
| 202 | [CTF_TYPE_STRING] = bt_ctf_field_string_reset, |
| 203 | }; |
| 204 | |
| 205 | static |
| 206 | int (* const field_serialize_funcs[])(struct bt_ctf_field *, |
| 207 | struct ctf_stream_pos *) = { |
| 208 | [CTF_TYPE_INTEGER] = bt_ctf_field_integer_serialize, |
| 209 | [CTF_TYPE_ENUM] = bt_ctf_field_enumeration_serialize, |
| 210 | [CTF_TYPE_FLOAT] = |
| 211 | bt_ctf_field_floating_point_serialize, |
| 212 | [CTF_TYPE_STRUCT] = bt_ctf_field_structure_serialize, |
| 213 | [CTF_TYPE_VARIANT] = bt_ctf_field_variant_serialize, |
| 214 | [CTF_TYPE_ARRAY] = bt_ctf_field_array_serialize, |
| 215 | [CTF_TYPE_SEQUENCE] = bt_ctf_field_sequence_serialize, |
| 216 | [CTF_TYPE_STRING] = bt_ctf_field_string_serialize, |
| 217 | }; |
| 218 | |
| 219 | static |
| 220 | int (* const field_copy_funcs[])(struct bt_ctf_field *, |
| 221 | struct bt_ctf_field *) = { |
| 222 | [CTF_TYPE_INTEGER] = bt_ctf_field_integer_copy, |
| 223 | [CTF_TYPE_ENUM] = bt_ctf_field_enumeration_copy, |
| 224 | [CTF_TYPE_FLOAT] = bt_ctf_field_floating_point_copy, |
| 225 | [CTF_TYPE_STRUCT] = bt_ctf_field_structure_copy, |
| 226 | [CTF_TYPE_VARIANT] = bt_ctf_field_variant_copy, |
| 227 | [CTF_TYPE_ARRAY] = bt_ctf_field_array_copy, |
| 228 | [CTF_TYPE_SEQUENCE] = bt_ctf_field_sequence_copy, |
| 229 | [CTF_TYPE_STRING] = bt_ctf_field_string_copy, |
| 230 | }; |
| 231 | |
| 232 | struct bt_ctf_field *bt_ctf_field_create(struct bt_ctf_field_type *type) |
| 233 | { |
| 234 | struct bt_ctf_field *field = NULL; |
| 235 | enum ctf_type_id type_id; |
| 236 | |
| 237 | if (!type) { |
| 238 | goto error; |
| 239 | } |
| 240 | |
| 241 | type_id = bt_ctf_field_type_get_type_id(type); |
| 242 | if (type_id <= CTF_TYPE_UNKNOWN || type_id >= NR_CTF_TYPES || |
| 243 | bt_ctf_field_type_validate(type)) { |
| 244 | goto error; |
| 245 | } |
| 246 | |
| 247 | field = field_create_funcs[type_id](type); |
| 248 | if (!field) { |
| 249 | goto error; |
| 250 | } |
| 251 | |
| 252 | /* The type's declaration can't change after this point */ |
| 253 | bt_ctf_field_type_freeze(type); |
| 254 | bt_ctf_field_type_get(type); |
| 255 | bt_ctf_base_init(field, bt_ctf_field_destroy); |
| 256 | field->type = type; |
| 257 | error: |
| 258 | return field; |
| 259 | } |
| 260 | |
| 261 | void bt_ctf_field_get(struct bt_ctf_field *field) |
| 262 | { |
| 263 | bt_ctf_get(field); |
| 264 | } |
| 265 | |
| 266 | void bt_ctf_field_put(struct bt_ctf_field *field) |
| 267 | { |
| 268 | bt_ctf_put(field); |
| 269 | } |
| 270 | |
| 271 | struct bt_ctf_field_type *bt_ctf_field_get_type(struct bt_ctf_field *field) |
| 272 | { |
| 273 | struct bt_ctf_field_type *ret = NULL; |
| 274 | |
| 275 | if (!field) { |
| 276 | goto end; |
| 277 | } |
| 278 | |
| 279 | ret = field->type; |
| 280 | bt_ctf_field_type_get(ret); |
| 281 | end: |
| 282 | return ret; |
| 283 | } |
| 284 | |
| 285 | struct bt_ctf_field *bt_ctf_field_sequence_get_length( |
| 286 | struct bt_ctf_field *field) |
| 287 | { |
| 288 | struct bt_ctf_field *ret = NULL; |
| 289 | struct bt_ctf_field_sequence *sequence; |
| 290 | |
| 291 | if (!field) { |
| 292 | goto end; |
| 293 | } |
| 294 | |
| 295 | if (bt_ctf_field_type_get_type_id(field->type) != |
| 296 | CTF_TYPE_SEQUENCE) { |
| 297 | goto end; |
| 298 | } |
| 299 | |
| 300 | sequence = container_of(field, struct bt_ctf_field_sequence, parent); |
| 301 | ret = sequence->length; |
| 302 | bt_ctf_field_get(ret); |
| 303 | end: |
| 304 | return ret; |
| 305 | } |
| 306 | |
| 307 | int bt_ctf_field_sequence_set_length(struct bt_ctf_field *field, |
| 308 | struct bt_ctf_field *length_field) |
| 309 | { |
| 310 | int ret = 0; |
| 311 | struct bt_ctf_field_type_integer *length_type; |
| 312 | struct bt_ctf_field_integer *length; |
| 313 | struct bt_ctf_field_sequence *sequence; |
| 314 | uint64_t sequence_length; |
| 315 | |
| 316 | if (!field || !length_field) { |
| 317 | ret = -1; |
| 318 | goto end; |
| 319 | } |
| 320 | if (bt_ctf_field_type_get_type_id(length_field->type) != |
| 321 | CTF_TYPE_INTEGER) { |
| 322 | ret = -1; |
| 323 | goto end; |
| 324 | } |
| 325 | |
| 326 | length_type = container_of(length_field->type, |
| 327 | struct bt_ctf_field_type_integer, parent); |
| 328 | /* The length field must be unsigned */ |
| 329 | if (length_type->declaration.signedness) { |
| 330 | ret = -1; |
| 331 | goto end; |
| 332 | } |
| 333 | |
| 334 | length = container_of(length_field, struct bt_ctf_field_integer, |
| 335 | parent); |
| 336 | sequence_length = length->definition.value._unsigned; |
| 337 | sequence = container_of(field, struct bt_ctf_field_sequence, parent); |
| 338 | if (sequence->elements) { |
| 339 | g_ptr_array_free(sequence->elements, TRUE); |
| 340 | bt_ctf_field_put(sequence->length); |
| 341 | } |
| 342 | |
| 343 | sequence->elements = g_ptr_array_sized_new((size_t)sequence_length); |
| 344 | if (!sequence->elements) { |
| 345 | ret = -1; |
| 346 | goto end; |
| 347 | } |
| 348 | |
| 349 | g_ptr_array_set_free_func(sequence->elements, |
| 350 | (GDestroyNotify)bt_ctf_field_put); |
| 351 | g_ptr_array_set_size(sequence->elements, (size_t)sequence_length); |
| 352 | bt_ctf_field_get(length_field); |
| 353 | sequence->length = length_field; |
| 354 | end: |
| 355 | return ret; |
| 356 | } |
| 357 | |
| 358 | struct bt_ctf_field *bt_ctf_field_structure_get_field( |
| 359 | struct bt_ctf_field *field, const char *name) |
| 360 | { |
| 361 | struct bt_ctf_field *new_field = NULL; |
| 362 | GQuark field_quark; |
| 363 | struct bt_ctf_field_structure *structure; |
| 364 | struct bt_ctf_field_type *field_type = NULL; |
| 365 | size_t index; |
| 366 | |
| 367 | if (!field || !name || |
| 368 | bt_ctf_field_type_get_type_id(field->type) != |
| 369 | CTF_TYPE_STRUCT) { |
| 370 | goto error; |
| 371 | } |
| 372 | |
| 373 | field_quark = g_quark_from_string(name); |
| 374 | structure = container_of(field, struct bt_ctf_field_structure, parent); |
| 375 | field_type = |
| 376 | bt_ctf_field_type_structure_get_field_type_by_name(field->type, |
| 377 | name); |
| 378 | if (!g_hash_table_lookup_extended(structure->field_name_to_index, |
| 379 | GUINT_TO_POINTER(field_quark), NULL, (gpointer *)&index)) { |
| 380 | goto error; |
| 381 | } |
| 382 | |
| 383 | if (structure->fields->pdata[index]) { |
| 384 | new_field = structure->fields->pdata[index]; |
| 385 | goto end; |
| 386 | } |
| 387 | |
| 388 | new_field = bt_ctf_field_create(field_type); |
| 389 | if (!new_field) { |
| 390 | goto error; |
| 391 | } |
| 392 | |
| 393 | structure->fields->pdata[index] = new_field; |
| 394 | end: |
| 395 | bt_ctf_field_get(new_field); |
| 396 | error: |
| 397 | if (field_type) { |
| 398 | bt_ctf_field_type_put(field_type); |
| 399 | } |
| 400 | return new_field; |
| 401 | } |
| 402 | |
| 403 | struct bt_ctf_field *bt_ctf_field_structure_get_field_by_index( |
| 404 | struct bt_ctf_field *field, int index) |
| 405 | { |
| 406 | int ret; |
| 407 | const char *field_name; |
| 408 | struct bt_ctf_field_structure *structure; |
| 409 | struct bt_ctf_field_type *structure_type; |
| 410 | struct bt_ctf_field_type *field_type = NULL; |
| 411 | struct bt_ctf_field *ret_field = NULL; |
| 412 | |
| 413 | if (!field || |
| 414 | bt_ctf_field_type_get_type_id(field->type) != CTF_TYPE_STRUCT) { |
| 415 | goto end; |
| 416 | } |
| 417 | |
| 418 | structure = container_of(field, struct bt_ctf_field_structure, parent); |
| 419 | if (index >= structure->fields->len) { |
| 420 | goto error; |
| 421 | } |
| 422 | |
| 423 | ret_field = structure->fields->pdata[index]; |
| 424 | if (ret_field) { |
| 425 | goto end; |
| 426 | } |
| 427 | |
| 428 | /* Field has not been instanciated yet, create it */ |
| 429 | structure_type = bt_ctf_field_get_type(field); |
| 430 | if (!structure_type) { |
| 431 | goto error; |
| 432 | } |
| 433 | |
| 434 | ret = bt_ctf_field_type_structure_get_field(structure_type, |
| 435 | &field_name, &field_type, index); |
| 436 | bt_ctf_field_type_put(structure_type); |
| 437 | if (ret) { |
| 438 | goto error; |
| 439 | } |
| 440 | |
| 441 | ret_field = bt_ctf_field_create(field_type); |
| 442 | if (!ret_field) { |
| 443 | goto error; |
| 444 | } |
| 445 | |
| 446 | structure->fields->pdata[index] = ret_field; |
| 447 | end: |
| 448 | bt_ctf_field_get(ret_field); |
| 449 | error: |
| 450 | if (field_type) { |
| 451 | bt_ctf_field_type_put(field_type); |
| 452 | } |
| 453 | return ret_field; |
| 454 | } |
| 455 | |
| 456 | BT_HIDDEN |
| 457 | int bt_ctf_field_structure_set_field(struct bt_ctf_field *field, |
| 458 | const char *name, struct bt_ctf_field *value) |
| 459 | { |
| 460 | int ret = 0; |
| 461 | GQuark field_quark; |
| 462 | struct bt_ctf_field_structure *structure; |
| 463 | struct bt_ctf_field_type *expected_field_type = NULL; |
| 464 | size_t index; |
| 465 | |
| 466 | if (!field || !name || !value || |
| 467 | bt_ctf_field_type_get_type_id(field->type) != |
| 468 | CTF_TYPE_STRUCT) { |
| 469 | ret = -1; |
| 470 | goto end; |
| 471 | } |
| 472 | |
| 473 | field_quark = g_quark_from_string(name); |
| 474 | structure = container_of(field, struct bt_ctf_field_structure, parent); |
| 475 | expected_field_type = |
| 476 | bt_ctf_field_type_structure_get_field_type_by_name(field->type, |
| 477 | name); |
| 478 | if (expected_field_type != value->type) { |
| 479 | ret = -1; |
| 480 | goto end; |
| 481 | } |
| 482 | |
| 483 | if (!g_hash_table_lookup_extended(structure->field_name_to_index, |
| 484 | GUINT_TO_POINTER(field_quark), NULL, (gpointer *) &index)) { |
| 485 | goto end; |
| 486 | } |
| 487 | |
| 488 | if (structure->fields->pdata[index]) { |
| 489 | bt_ctf_field_put(structure->fields->pdata[index]); |
| 490 | } |
| 491 | |
| 492 | structure->fields->pdata[index] = value; |
| 493 | bt_ctf_field_get(value); |
| 494 | end: |
| 495 | if (expected_field_type) { |
| 496 | bt_ctf_field_type_put(expected_field_type); |
| 497 | } |
| 498 | return ret; |
| 499 | } |
| 500 | |
| 501 | struct bt_ctf_field *bt_ctf_field_array_get_field(struct bt_ctf_field *field, |
| 502 | uint64_t index) |
| 503 | { |
| 504 | struct bt_ctf_field *new_field = NULL; |
| 505 | struct bt_ctf_field_type *field_type = NULL; |
| 506 | struct bt_ctf_field_array *array; |
| 507 | |
| 508 | if (!field || bt_ctf_field_type_get_type_id(field->type) != |
| 509 | CTF_TYPE_ARRAY) { |
| 510 | goto end; |
| 511 | } |
| 512 | |
| 513 | array = container_of(field, struct bt_ctf_field_array, parent); |
| 514 | if (index >= array->elements->len) { |
| 515 | goto end; |
| 516 | } |
| 517 | |
| 518 | field_type = bt_ctf_field_type_array_get_element_type(field->type); |
| 519 | if (array->elements->pdata[(size_t)index]) { |
| 520 | new_field = array->elements->pdata[(size_t)index]; |
| 521 | goto end; |
| 522 | } |
| 523 | |
| 524 | new_field = bt_ctf_field_create(field_type); |
| 525 | array->elements->pdata[(size_t)index] = new_field; |
| 526 | end: |
| 527 | if (field_type) { |
| 528 | bt_ctf_field_type_put(field_type); |
| 529 | } |
| 530 | if (new_field) { |
| 531 | bt_ctf_field_get(new_field); |
| 532 | } |
| 533 | return new_field; |
| 534 | } |
| 535 | |
| 536 | struct bt_ctf_field *bt_ctf_field_sequence_get_field(struct bt_ctf_field *field, |
| 537 | uint64_t index) |
| 538 | { |
| 539 | struct bt_ctf_field *new_field = NULL; |
| 540 | struct bt_ctf_field_type *field_type = NULL; |
| 541 | struct bt_ctf_field_sequence *sequence; |
| 542 | |
| 543 | if (!field || bt_ctf_field_type_get_type_id(field->type) != |
| 544 | CTF_TYPE_SEQUENCE) { |
| 545 | goto end; |
| 546 | } |
| 547 | |
| 548 | sequence = container_of(field, struct bt_ctf_field_sequence, parent); |
| 549 | if (!sequence->elements || sequence->elements->len <= index) { |
| 550 | goto end; |
| 551 | } |
| 552 | |
| 553 | field_type = bt_ctf_field_type_sequence_get_element_type(field->type); |
| 554 | if (sequence->elements->pdata[(size_t)index]) { |
| 555 | new_field = sequence->elements->pdata[(size_t)index]; |
| 556 | goto end; |
| 557 | } |
| 558 | |
| 559 | new_field = bt_ctf_field_create(field_type); |
| 560 | sequence->elements->pdata[(size_t)index] = new_field; |
| 561 | end: |
| 562 | if (field_type) { |
| 563 | bt_ctf_field_type_put(field_type); |
| 564 | } |
| 565 | if (new_field) { |
| 566 | bt_ctf_field_get(new_field); |
| 567 | } |
| 568 | return new_field; |
| 569 | } |
| 570 | |
| 571 | struct bt_ctf_field *bt_ctf_field_variant_get_field(struct bt_ctf_field *field, |
| 572 | struct bt_ctf_field *tag_field) |
| 573 | { |
| 574 | struct bt_ctf_field *new_field = NULL; |
| 575 | struct bt_ctf_field_variant *variant; |
| 576 | struct bt_ctf_field_type_variant *variant_type; |
| 577 | struct bt_ctf_field_type *field_type; |
| 578 | struct bt_ctf_field *tag_enum = NULL; |
| 579 | struct bt_ctf_field_integer *tag_enum_integer; |
| 580 | int64_t tag_enum_value; |
| 581 | |
| 582 | if (!field || !tag_field || |
| 583 | bt_ctf_field_type_get_type_id(field->type) != |
| 584 | CTF_TYPE_VARIANT || |
| 585 | bt_ctf_field_type_get_type_id(tag_field->type) != |
| 586 | CTF_TYPE_ENUM) { |
| 587 | goto end; |
| 588 | } |
| 589 | |
| 590 | variant = container_of(field, struct bt_ctf_field_variant, parent); |
| 591 | variant_type = container_of(field->type, |
| 592 | struct bt_ctf_field_type_variant, parent); |
| 593 | tag_enum = bt_ctf_field_enumeration_get_container(tag_field); |
| 594 | if (!tag_enum) { |
| 595 | goto end; |
| 596 | } |
| 597 | |
| 598 | tag_enum_integer = container_of(tag_enum, struct bt_ctf_field_integer, |
| 599 | parent); |
| 600 | |
| 601 | if (bt_ctf_field_validate(tag_field) < 0) { |
| 602 | goto end; |
| 603 | } |
| 604 | |
| 605 | tag_enum_value = tag_enum_integer->definition.value._signed; |
| 606 | |
| 607 | /* |
| 608 | * If the variant currently has a tag and a payload, and if the |
| 609 | * requested tag value is the same as the current one, return |
| 610 | * the current payload instead of creating a fresh one. |
| 611 | */ |
| 612 | if (variant->tag && variant->payload) { |
| 613 | struct bt_ctf_field *cur_tag_container = NULL; |
| 614 | struct bt_ctf_field_integer *cur_tag_enum_integer; |
| 615 | int64_t cur_tag_value; |
| 616 | |
| 617 | cur_tag_container = |
| 618 | bt_ctf_field_enumeration_get_container(variant->tag); |
| 619 | cur_tag_enum_integer = container_of(cur_tag_container, |
| 620 | struct bt_ctf_field_integer, parent); |
| 621 | bt_ctf_field_put(cur_tag_container); |
| 622 | cur_tag_value = cur_tag_enum_integer->definition.value._signed; |
| 623 | |
| 624 | if (cur_tag_value == tag_enum_value) { |
| 625 | new_field = variant->payload; |
| 626 | bt_ctf_field_get(new_field); |
| 627 | goto end; |
| 628 | } |
| 629 | } |
| 630 | |
| 631 | field_type = bt_ctf_field_type_variant_get_field_type_signed( |
| 632 | variant_type, tag_enum_value); |
| 633 | if (!field_type) { |
| 634 | goto end; |
| 635 | } |
| 636 | |
| 637 | new_field = bt_ctf_field_create(field_type); |
| 638 | if (!new_field) { |
| 639 | goto end; |
| 640 | } |
| 641 | |
| 642 | bt_ctf_field_put(variant->tag); |
| 643 | bt_ctf_field_put(variant->payload); |
| 644 | bt_ctf_field_get(new_field); |
| 645 | bt_ctf_field_get(tag_field); |
| 646 | variant->tag = tag_field; |
| 647 | variant->payload = new_field; |
| 648 | end: |
| 649 | bt_ctf_field_put(tag_enum); |
| 650 | return new_field; |
| 651 | } |
| 652 | |
| 653 | struct bt_ctf_field *bt_ctf_field_variant_get_current_field( |
| 654 | struct bt_ctf_field *variant_field) |
| 655 | { |
| 656 | struct bt_ctf_field *current_field = NULL; |
| 657 | struct bt_ctf_field_variant *variant; |
| 658 | |
| 659 | if (!variant_field || |
| 660 | bt_ctf_field_type_get_type_id(variant_field->type) != |
| 661 | CTF_TYPE_VARIANT) { |
| 662 | goto end; |
| 663 | } |
| 664 | |
| 665 | variant = container_of(variant_field, struct bt_ctf_field_variant, |
| 666 | parent); |
| 667 | |
| 668 | if (variant->payload) { |
| 669 | current_field = variant->payload; |
| 670 | bt_ctf_field_get(current_field); |
| 671 | goto end; |
| 672 | } |
| 673 | |
| 674 | end: |
| 675 | return current_field; |
| 676 | } |
| 677 | |
| 678 | struct bt_ctf_field *bt_ctf_field_enumeration_get_container( |
| 679 | struct bt_ctf_field *field) |
| 680 | { |
| 681 | struct bt_ctf_field *container = NULL; |
| 682 | struct bt_ctf_field_enumeration *enumeration; |
| 683 | |
| 684 | if (!field || bt_ctf_field_type_get_type_id(field->type) != |
| 685 | CTF_TYPE_ENUM) { |
| 686 | goto end; |
| 687 | } |
| 688 | |
| 689 | enumeration = container_of(field, struct bt_ctf_field_enumeration, |
| 690 | parent); |
| 691 | if (!enumeration->payload) { |
| 692 | struct bt_ctf_field_type_enumeration *enumeration_type = |
| 693 | container_of(field->type, |
| 694 | struct bt_ctf_field_type_enumeration, parent); |
| 695 | enumeration->payload = |
| 696 | bt_ctf_field_create(enumeration_type->container); |
| 697 | } |
| 698 | |
| 699 | container = enumeration->payload; |
| 700 | bt_ctf_field_get(container); |
| 701 | end: |
| 702 | return container; |
| 703 | } |
| 704 | |
| 705 | const char *bt_ctf_field_enumeration_get_mapping_name( |
| 706 | struct bt_ctf_field *field) |
| 707 | { |
| 708 | int ret; |
| 709 | const char *name = NULL; |
| 710 | struct bt_ctf_field *container = NULL; |
| 711 | struct bt_ctf_field_type *container_type = NULL; |
| 712 | struct bt_ctf_field_type_integer *integer_type = NULL; |
| 713 | struct bt_ctf_field_type_enumeration *enumeration_type = NULL; |
| 714 | |
| 715 | container = bt_ctf_field_enumeration_get_container(field); |
| 716 | if (!container) { |
| 717 | goto end; |
| 718 | } |
| 719 | |
| 720 | container_type = bt_ctf_field_get_type(container); |
| 721 | if (!container_type) { |
| 722 | goto error_put_container; |
| 723 | } |
| 724 | |
| 725 | integer_type = container_of(container_type, |
| 726 | struct bt_ctf_field_type_integer, parent); |
| 727 | enumeration_type = container_of(field->type, |
| 728 | struct bt_ctf_field_type_enumeration, parent); |
| 729 | |
| 730 | if (!integer_type->declaration.signedness) { |
| 731 | uint64_t value; |
| 732 | ret = bt_ctf_field_unsigned_integer_get_value(container, |
| 733 | &value); |
| 734 | if (ret) { |
| 735 | goto error_put_container_type; |
| 736 | } |
| 737 | |
| 738 | name = bt_ctf_field_type_enumeration_get_mapping_name_unsigned( |
| 739 | enumeration_type, value); |
| 740 | } else { |
| 741 | int64_t value; |
| 742 | ret = bt_ctf_field_signed_integer_get_value(container, |
| 743 | &value); |
| 744 | if (ret) { |
| 745 | goto error_put_container_type; |
| 746 | } |
| 747 | |
| 748 | name = bt_ctf_field_type_enumeration_get_mapping_name_signed( |
| 749 | enumeration_type, value); |
| 750 | } |
| 751 | |
| 752 | error_put_container_type: |
| 753 | bt_ctf_field_type_put(container_type); |
| 754 | error_put_container: |
| 755 | bt_ctf_field_put(container); |
| 756 | end: |
| 757 | return name; |
| 758 | } |
| 759 | |
| 760 | int bt_ctf_field_signed_integer_get_value(struct bt_ctf_field *field, |
| 761 | int64_t *value) |
| 762 | { |
| 763 | int ret = 0; |
| 764 | struct bt_ctf_field_integer *integer; |
| 765 | struct bt_ctf_field_type_integer *integer_type; |
| 766 | |
| 767 | if (!field || !value || !field->payload_set || |
| 768 | bt_ctf_field_type_get_type_id(field->type) != |
| 769 | CTF_TYPE_INTEGER) { |
| 770 | ret = -1; |
| 771 | goto end; |
| 772 | } |
| 773 | |
| 774 | integer_type = container_of(field->type, |
| 775 | struct bt_ctf_field_type_integer, parent); |
| 776 | if (!integer_type->declaration.signedness) { |
| 777 | ret = -1; |
| 778 | goto end; |
| 779 | } |
| 780 | |
| 781 | integer = container_of(field, |
| 782 | struct bt_ctf_field_integer, parent); |
| 783 | *value = integer->definition.value._signed; |
| 784 | end: |
| 785 | return ret; |
| 786 | } |
| 787 | |
| 788 | int bt_ctf_field_signed_integer_set_value(struct bt_ctf_field *field, |
| 789 | int64_t value) |
| 790 | { |
| 791 | int ret = 0; |
| 792 | struct bt_ctf_field_integer *integer; |
| 793 | struct bt_ctf_field_type_integer *integer_type; |
| 794 | unsigned int size; |
| 795 | int64_t min_value, max_value; |
| 796 | |
| 797 | if (!field || |
| 798 | bt_ctf_field_type_get_type_id(field->type) != |
| 799 | CTF_TYPE_INTEGER) { |
| 800 | ret = -1; |
| 801 | goto end; |
| 802 | } |
| 803 | |
| 804 | integer = container_of(field, struct bt_ctf_field_integer, parent); |
| 805 | integer_type = container_of(field->type, |
| 806 | struct bt_ctf_field_type_integer, parent); |
| 807 | if (!integer_type->declaration.signedness) { |
| 808 | ret = -1; |
| 809 | goto end; |
| 810 | } |
| 811 | |
| 812 | size = integer_type->declaration.len; |
| 813 | min_value = -((int64_t)1 << (size - 1)); |
| 814 | max_value = ((int64_t)1 << (size - 1)) - 1; |
| 815 | if (value < min_value || value > max_value) { |
| 816 | ret = -1; |
| 817 | goto end; |
| 818 | } |
| 819 | |
| 820 | integer->definition.value._signed = value; |
| 821 | integer->parent.payload_set = 1; |
| 822 | end: |
| 823 | return ret; |
| 824 | } |
| 825 | |
| 826 | int bt_ctf_field_unsigned_integer_get_value(struct bt_ctf_field *field, |
| 827 | uint64_t *value) |
| 828 | { |
| 829 | int ret = 0; |
| 830 | struct bt_ctf_field_integer *integer; |
| 831 | struct bt_ctf_field_type_integer *integer_type; |
| 832 | |
| 833 | if (!field || !value || !field->payload_set || |
| 834 | bt_ctf_field_type_get_type_id(field->type) != |
| 835 | CTF_TYPE_INTEGER) { |
| 836 | ret = -1; |
| 837 | goto end; |
| 838 | } |
| 839 | |
| 840 | integer_type = container_of(field->type, |
| 841 | struct bt_ctf_field_type_integer, parent); |
| 842 | if (integer_type->declaration.signedness) { |
| 843 | ret = -1; |
| 844 | goto end; |
| 845 | } |
| 846 | |
| 847 | integer = container_of(field, |
| 848 | struct bt_ctf_field_integer, parent); |
| 849 | *value = integer->definition.value._unsigned; |
| 850 | end: |
| 851 | return ret; |
| 852 | } |
| 853 | |
| 854 | int bt_ctf_field_unsigned_integer_set_value(struct bt_ctf_field *field, |
| 855 | uint64_t value) |
| 856 | { |
| 857 | int ret = 0; |
| 858 | struct bt_ctf_field_integer *integer; |
| 859 | struct bt_ctf_field_type_integer *integer_type; |
| 860 | unsigned int size; |
| 861 | uint64_t max_value; |
| 862 | |
| 863 | if (!field || |
| 864 | bt_ctf_field_type_get_type_id(field->type) != |
| 865 | CTF_TYPE_INTEGER) { |
| 866 | ret = -1; |
| 867 | goto end; |
| 868 | } |
| 869 | |
| 870 | integer = container_of(field, struct bt_ctf_field_integer, parent); |
| 871 | integer_type = container_of(field->type, |
| 872 | struct bt_ctf_field_type_integer, parent); |
| 873 | if (integer_type->declaration.signedness) { |
| 874 | ret = -1; |
| 875 | goto end; |
| 876 | } |
| 877 | |
| 878 | size = integer_type->declaration.len; |
| 879 | max_value = (size == 64) ? UINT64_MAX : ((uint64_t)1 << size) - 1; |
| 880 | if (value > max_value) { |
| 881 | ret = -1; |
| 882 | goto end; |
| 883 | } |
| 884 | |
| 885 | integer->definition.value._unsigned = value; |
| 886 | integer->parent.payload_set = 1; |
| 887 | end: |
| 888 | return ret; |
| 889 | } |
| 890 | |
| 891 | int bt_ctf_field_floating_point_get_value(struct bt_ctf_field *field, |
| 892 | double *value) |
| 893 | { |
| 894 | int ret = 0; |
| 895 | struct bt_ctf_field_floating_point *floating_point; |
| 896 | |
| 897 | if (!field || !value || !field->payload_set || |
| 898 | bt_ctf_field_type_get_type_id(field->type) != |
| 899 | CTF_TYPE_FLOAT) { |
| 900 | ret = -1; |
| 901 | goto end; |
| 902 | } |
| 903 | |
| 904 | floating_point = container_of(field, |
| 905 | struct bt_ctf_field_floating_point, parent); |
| 906 | *value = floating_point->definition.value; |
| 907 | end: |
| 908 | return ret; |
| 909 | } |
| 910 | |
| 911 | int bt_ctf_field_floating_point_set_value(struct bt_ctf_field *field, |
| 912 | double value) |
| 913 | { |
| 914 | int ret = 0; |
| 915 | struct bt_ctf_field_floating_point *floating_point; |
| 916 | |
| 917 | if (!field || |
| 918 | bt_ctf_field_type_get_type_id(field->type) != |
| 919 | CTF_TYPE_FLOAT) { |
| 920 | ret = -1; |
| 921 | goto end; |
| 922 | } |
| 923 | floating_point = container_of(field, struct bt_ctf_field_floating_point, |
| 924 | parent); |
| 925 | floating_point->definition.value = value; |
| 926 | floating_point->parent.payload_set = 1; |
| 927 | end: |
| 928 | return ret; |
| 929 | } |
| 930 | |
| 931 | const char *bt_ctf_field_string_get_value(struct bt_ctf_field *field) |
| 932 | { |
| 933 | const char *ret = NULL; |
| 934 | struct bt_ctf_field_string *string; |
| 935 | |
| 936 | if (!field || !field->payload_set || |
| 937 | bt_ctf_field_type_get_type_id(field->type) != |
| 938 | CTF_TYPE_STRING) { |
| 939 | goto end; |
| 940 | } |
| 941 | |
| 942 | string = container_of(field, |
| 943 | struct bt_ctf_field_string, parent); |
| 944 | ret = string->payload->str; |
| 945 | end: |
| 946 | return ret; |
| 947 | } |
| 948 | |
| 949 | int bt_ctf_field_string_set_value(struct bt_ctf_field *field, |
| 950 | const char *value) |
| 951 | { |
| 952 | int ret = 0; |
| 953 | struct bt_ctf_field_string *string; |
| 954 | |
| 955 | if (!field || !value || |
| 956 | bt_ctf_field_type_get_type_id(field->type) != |
| 957 | CTF_TYPE_STRING) { |
| 958 | ret = -1; |
| 959 | goto end; |
| 960 | } |
| 961 | |
| 962 | string = container_of(field, struct bt_ctf_field_string, parent); |
| 963 | if (string->payload) { |
| 964 | g_string_assign(string->payload, value); |
| 965 | } else { |
| 966 | string->payload = g_string_new(value); |
| 967 | } |
| 968 | |
| 969 | string->parent.payload_set = 1; |
| 970 | end: |
| 971 | return ret; |
| 972 | } |
| 973 | |
| 974 | int bt_ctf_field_string_append(struct bt_ctf_field *field, |
| 975 | const char *value) |
| 976 | { |
| 977 | int ret = 0; |
| 978 | struct bt_ctf_field_string *string_field; |
| 979 | |
| 980 | if (!field || !value || |
| 981 | bt_ctf_field_type_get_type_id(field->type) != |
| 982 | CTF_TYPE_STRING) { |
| 983 | ret = -1; |
| 984 | goto end; |
| 985 | } |
| 986 | |
| 987 | string_field = container_of(field, struct bt_ctf_field_string, parent); |
| 988 | |
| 989 | if (string_field->payload) { |
| 990 | g_string_append(string_field->payload, value); |
| 991 | } else { |
| 992 | string_field->payload = g_string_new(value); |
| 993 | } |
| 994 | |
| 995 | string_field->parent.payload_set = 1; |
| 996 | |
| 997 | end: |
| 998 | return ret; |
| 999 | } |
| 1000 | |
| 1001 | int bt_ctf_field_string_append_len(struct bt_ctf_field *field, |
| 1002 | const char *value, unsigned int length) |
| 1003 | { |
| 1004 | int i; |
| 1005 | int ret = 0; |
| 1006 | unsigned int effective_length = length; |
| 1007 | struct bt_ctf_field_string *string_field; |
| 1008 | |
| 1009 | if (!field || !value || |
| 1010 | bt_ctf_field_type_get_type_id(field->type) != |
| 1011 | CTF_TYPE_STRING) { |
| 1012 | ret = -1; |
| 1013 | goto end; |
| 1014 | } |
| 1015 | |
| 1016 | string_field = container_of(field, struct bt_ctf_field_string, parent); |
| 1017 | |
| 1018 | /* make sure no null bytes are appended */ |
| 1019 | for (i = 0; i < length; ++i) { |
| 1020 | if (value[i] == '\0') { |
| 1021 | effective_length = i; |
| 1022 | break; |
| 1023 | } |
| 1024 | } |
| 1025 | |
| 1026 | if (string_field->payload) { |
| 1027 | g_string_append_len(string_field->payload, value, |
| 1028 | effective_length); |
| 1029 | } else { |
| 1030 | string_field->payload = g_string_new_len(value, |
| 1031 | effective_length); |
| 1032 | } |
| 1033 | |
| 1034 | string_field->parent.payload_set = 1; |
| 1035 | |
| 1036 | end: |
| 1037 | return ret; |
| 1038 | } |
| 1039 | |
| 1040 | BT_HIDDEN |
| 1041 | int bt_ctf_field_validate(struct bt_ctf_field *field) |
| 1042 | { |
| 1043 | int ret = 0; |
| 1044 | enum ctf_type_id type_id; |
| 1045 | |
| 1046 | if (!field) { |
| 1047 | ret = -1; |
| 1048 | goto end; |
| 1049 | } |
| 1050 | |
| 1051 | type_id = bt_ctf_field_type_get_type_id(field->type); |
| 1052 | if (type_id <= CTF_TYPE_UNKNOWN || type_id >= NR_CTF_TYPES) { |
| 1053 | ret = -1; |
| 1054 | goto end; |
| 1055 | } |
| 1056 | |
| 1057 | ret = field_validate_funcs[type_id](field); |
| 1058 | end: |
| 1059 | return ret; |
| 1060 | } |
| 1061 | |
| 1062 | BT_HIDDEN |
| 1063 | int bt_ctf_field_reset(struct bt_ctf_field *field) |
| 1064 | { |
| 1065 | int ret = 0; |
| 1066 | enum ctf_type_id type_id; |
| 1067 | |
| 1068 | if (!field) { |
| 1069 | ret = -1; |
| 1070 | goto end; |
| 1071 | } |
| 1072 | |
| 1073 | type_id = bt_ctf_field_type_get_type_id(field->type); |
| 1074 | if (type_id <= CTF_TYPE_UNKNOWN || type_id >= NR_CTF_TYPES) { |
| 1075 | ret = -1; |
| 1076 | goto end; |
| 1077 | } |
| 1078 | |
| 1079 | ret = field_reset_funcs[type_id](field); |
| 1080 | end: |
| 1081 | return ret; |
| 1082 | } |
| 1083 | |
| 1084 | BT_HIDDEN |
| 1085 | int bt_ctf_field_serialize(struct bt_ctf_field *field, |
| 1086 | struct ctf_stream_pos *pos) |
| 1087 | { |
| 1088 | int ret = 0; |
| 1089 | enum ctf_type_id type_id; |
| 1090 | |
| 1091 | if (!field || !pos) { |
| 1092 | ret = -1; |
| 1093 | goto end; |
| 1094 | } |
| 1095 | |
| 1096 | type_id = bt_ctf_field_type_get_type_id(field->type); |
| 1097 | if (type_id <= CTF_TYPE_UNKNOWN || type_id >= NR_CTF_TYPES) { |
| 1098 | ret = -1; |
| 1099 | goto end; |
| 1100 | } |
| 1101 | |
| 1102 | ret = field_serialize_funcs[type_id](field, pos); |
| 1103 | end: |
| 1104 | return ret; |
| 1105 | } |
| 1106 | |
| 1107 | struct bt_ctf_field *bt_ctf_field_copy(struct bt_ctf_field *field) |
| 1108 | { |
| 1109 | int ret; |
| 1110 | struct bt_ctf_field *copy = NULL; |
| 1111 | enum ctf_type_id type_id; |
| 1112 | |
| 1113 | if (!field) { |
| 1114 | goto end; |
| 1115 | } |
| 1116 | |
| 1117 | type_id = bt_ctf_field_type_get_type_id(field->type); |
| 1118 | if (type_id <= CTF_TYPE_UNKNOWN || type_id >= NR_CTF_TYPES) { |
| 1119 | goto end; |
| 1120 | } |
| 1121 | |
| 1122 | copy = bt_ctf_field_create(field->type); |
| 1123 | if (!copy) { |
| 1124 | goto end; |
| 1125 | } |
| 1126 | |
| 1127 | copy->payload_set = field->payload_set; |
| 1128 | ret = field_copy_funcs[type_id](field, copy); |
| 1129 | if (ret) { |
| 1130 | bt_ctf_field_put(copy); |
| 1131 | copy = NULL; |
| 1132 | } |
| 1133 | end: |
| 1134 | return copy; |
| 1135 | } |
| 1136 | |
| 1137 | static |
| 1138 | struct bt_ctf_field *bt_ctf_field_integer_create(struct bt_ctf_field_type *type) |
| 1139 | { |
| 1140 | struct bt_ctf_field_type_integer *integer_type = container_of(type, |
| 1141 | struct bt_ctf_field_type_integer, parent); |
| 1142 | struct bt_ctf_field_integer *integer = g_new0( |
| 1143 | struct bt_ctf_field_integer, 1); |
| 1144 | |
| 1145 | if (integer) { |
| 1146 | integer->definition.declaration = &integer_type->declaration; |
| 1147 | } |
| 1148 | |
| 1149 | return integer ? &integer->parent : NULL; |
| 1150 | } |
| 1151 | |
| 1152 | static |
| 1153 | struct bt_ctf_field *bt_ctf_field_enumeration_create( |
| 1154 | struct bt_ctf_field_type *type) |
| 1155 | { |
| 1156 | struct bt_ctf_field_enumeration *enumeration = g_new0( |
| 1157 | struct bt_ctf_field_enumeration, 1); |
| 1158 | |
| 1159 | return enumeration ? &enumeration->parent : NULL; |
| 1160 | } |
| 1161 | |
| 1162 | static |
| 1163 | struct bt_ctf_field *bt_ctf_field_floating_point_create( |
| 1164 | struct bt_ctf_field_type *type) |
| 1165 | { |
| 1166 | struct bt_ctf_field_floating_point *floating_point; |
| 1167 | struct bt_ctf_field_type_floating_point *floating_point_type; |
| 1168 | |
| 1169 | floating_point = g_new0(struct bt_ctf_field_floating_point, 1); |
| 1170 | if (!floating_point) { |
| 1171 | goto end; |
| 1172 | } |
| 1173 | |
| 1174 | floating_point_type = container_of(type, |
| 1175 | struct bt_ctf_field_type_floating_point, parent); |
| 1176 | floating_point->definition.declaration = container_of( |
| 1177 | type->declaration, struct declaration_float, p); |
| 1178 | |
| 1179 | |
| 1180 | floating_point->definition.sign = &floating_point->sign; |
| 1181 | floating_point->sign.declaration = &floating_point_type->sign; |
| 1182 | floating_point->definition.sign->p.declaration = |
| 1183 | &floating_point_type->sign.p; |
| 1184 | |
| 1185 | floating_point->definition.mantissa = &floating_point->mantissa; |
| 1186 | floating_point->mantissa.declaration = &floating_point_type->mantissa; |
| 1187 | floating_point->definition.mantissa->p.declaration = |
| 1188 | &floating_point_type->mantissa.p; |
| 1189 | |
| 1190 | floating_point->definition.exp = &floating_point->exp; |
| 1191 | floating_point->exp.declaration = &floating_point_type->exp; |
| 1192 | floating_point->definition.exp->p.declaration = |
| 1193 | &floating_point_type->exp.p; |
| 1194 | |
| 1195 | end: |
| 1196 | return floating_point ? &floating_point->parent : NULL; |
| 1197 | } |
| 1198 | |
| 1199 | static |
| 1200 | struct bt_ctf_field *bt_ctf_field_structure_create( |
| 1201 | struct bt_ctf_field_type *type) |
| 1202 | { |
| 1203 | struct bt_ctf_field_type_structure *structure_type = container_of(type, |
| 1204 | struct bt_ctf_field_type_structure, parent); |
| 1205 | struct bt_ctf_field_structure *structure = g_new0( |
| 1206 | struct bt_ctf_field_structure, 1); |
| 1207 | struct bt_ctf_field *field = NULL; |
| 1208 | |
| 1209 | if (!structure || !structure_type->fields->len) { |
| 1210 | goto end; |
| 1211 | } |
| 1212 | |
| 1213 | structure->field_name_to_index = structure_type->field_name_to_index; |
| 1214 | structure->fields = g_ptr_array_new_with_free_func( |
| 1215 | (GDestroyNotify)bt_ctf_field_put); |
| 1216 | g_ptr_array_set_size(structure->fields, |
| 1217 | g_hash_table_size(structure->field_name_to_index)); |
| 1218 | field = &structure->parent; |
| 1219 | end: |
| 1220 | return field; |
| 1221 | } |
| 1222 | |
| 1223 | static |
| 1224 | struct bt_ctf_field *bt_ctf_field_variant_create(struct bt_ctf_field_type *type) |
| 1225 | { |
| 1226 | struct bt_ctf_field_variant *variant = g_new0( |
| 1227 | struct bt_ctf_field_variant, 1); |
| 1228 | return variant ? &variant->parent : NULL; |
| 1229 | } |
| 1230 | |
| 1231 | static |
| 1232 | struct bt_ctf_field *bt_ctf_field_array_create(struct bt_ctf_field_type *type) |
| 1233 | { |
| 1234 | struct bt_ctf_field_array *array = g_new0(struct bt_ctf_field_array, 1); |
| 1235 | struct bt_ctf_field_type_array *array_type; |
| 1236 | unsigned int array_length; |
| 1237 | |
| 1238 | if (!array || !type) { |
| 1239 | goto error; |
| 1240 | } |
| 1241 | |
| 1242 | array_type = container_of(type, struct bt_ctf_field_type_array, parent); |
| 1243 | array_length = array_type->length; |
| 1244 | array->elements = g_ptr_array_sized_new(array_length); |
| 1245 | if (!array->elements) { |
| 1246 | goto error; |
| 1247 | } |
| 1248 | |
| 1249 | g_ptr_array_set_free_func(array->elements, |
| 1250 | (GDestroyNotify)bt_ctf_field_put); |
| 1251 | g_ptr_array_set_size(array->elements, array_length); |
| 1252 | return &array->parent; |
| 1253 | error: |
| 1254 | g_free(array); |
| 1255 | return NULL; |
| 1256 | } |
| 1257 | |
| 1258 | static |
| 1259 | struct bt_ctf_field *bt_ctf_field_sequence_create( |
| 1260 | struct bt_ctf_field_type *type) |
| 1261 | { |
| 1262 | struct bt_ctf_field_sequence *sequence = g_new0( |
| 1263 | struct bt_ctf_field_sequence, 1); |
| 1264 | return sequence ? &sequence->parent : NULL; |
| 1265 | } |
| 1266 | |
| 1267 | static |
| 1268 | struct bt_ctf_field *bt_ctf_field_string_create(struct bt_ctf_field_type *type) |
| 1269 | { |
| 1270 | struct bt_ctf_field_string *string = g_new0( |
| 1271 | struct bt_ctf_field_string, 1); |
| 1272 | return string ? &string->parent : NULL; |
| 1273 | } |
| 1274 | |
| 1275 | static |
| 1276 | void bt_ctf_field_destroy(struct bt_ref *ref) |
| 1277 | { |
| 1278 | struct bt_ctf_field *field; |
| 1279 | struct bt_ctf_base *base; |
| 1280 | struct bt_ctf_field_type *type; |
| 1281 | enum ctf_type_id type_id; |
| 1282 | |
| 1283 | if (!ref) { |
| 1284 | return; |
| 1285 | } |
| 1286 | |
| 1287 | base = container_of(ref, struct bt_ctf_base, ref_count); |
| 1288 | field = container_of(base, struct bt_ctf_field, base); |
| 1289 | type = field->type; |
| 1290 | type_id = bt_ctf_field_type_get_type_id(type); |
| 1291 | if (type_id <= CTF_TYPE_UNKNOWN || |
| 1292 | type_id >= NR_CTF_TYPES) { |
| 1293 | return; |
| 1294 | } |
| 1295 | |
| 1296 | field_destroy_funcs[type_id](field); |
| 1297 | if (type) { |
| 1298 | bt_ctf_field_type_put(type); |
| 1299 | } |
| 1300 | } |
| 1301 | |
| 1302 | static |
| 1303 | void bt_ctf_field_integer_destroy(struct bt_ctf_field *field) |
| 1304 | { |
| 1305 | struct bt_ctf_field_integer *integer; |
| 1306 | |
| 1307 | if (!field) { |
| 1308 | return; |
| 1309 | } |
| 1310 | |
| 1311 | integer = container_of(field, struct bt_ctf_field_integer, parent); |
| 1312 | g_free(integer); |
| 1313 | } |
| 1314 | |
| 1315 | static |
| 1316 | void bt_ctf_field_enumeration_destroy(struct bt_ctf_field *field) |
| 1317 | { |
| 1318 | struct bt_ctf_field_enumeration *enumeration; |
| 1319 | |
| 1320 | if (!field) { |
| 1321 | return; |
| 1322 | } |
| 1323 | |
| 1324 | enumeration = container_of(field, struct bt_ctf_field_enumeration, |
| 1325 | parent); |
| 1326 | bt_ctf_field_put(enumeration->payload); |
| 1327 | g_free(enumeration); |
| 1328 | } |
| 1329 | |
| 1330 | static |
| 1331 | void bt_ctf_field_floating_point_destroy(struct bt_ctf_field *field) |
| 1332 | { |
| 1333 | struct bt_ctf_field_floating_point *floating_point; |
| 1334 | |
| 1335 | if (!field) { |
| 1336 | return; |
| 1337 | } |
| 1338 | |
| 1339 | floating_point = container_of(field, struct bt_ctf_field_floating_point, |
| 1340 | parent); |
| 1341 | g_free(floating_point); |
| 1342 | } |
| 1343 | |
| 1344 | static |
| 1345 | void bt_ctf_field_structure_destroy(struct bt_ctf_field *field) |
| 1346 | { |
| 1347 | struct bt_ctf_field_structure *structure; |
| 1348 | |
| 1349 | if (!field) { |
| 1350 | return; |
| 1351 | } |
| 1352 | |
| 1353 | structure = container_of(field, struct bt_ctf_field_structure, parent); |
| 1354 | g_ptr_array_free(structure->fields, TRUE); |
| 1355 | g_free(structure); |
| 1356 | } |
| 1357 | |
| 1358 | static |
| 1359 | void bt_ctf_field_variant_destroy(struct bt_ctf_field *field) |
| 1360 | { |
| 1361 | struct bt_ctf_field_variant *variant; |
| 1362 | |
| 1363 | if (!field) { |
| 1364 | return; |
| 1365 | } |
| 1366 | |
| 1367 | variant = container_of(field, struct bt_ctf_field_variant, parent); |
| 1368 | bt_ctf_field_put(variant->tag); |
| 1369 | bt_ctf_field_put(variant->payload); |
| 1370 | g_free(variant); |
| 1371 | } |
| 1372 | |
| 1373 | static |
| 1374 | void bt_ctf_field_array_destroy(struct bt_ctf_field *field) |
| 1375 | { |
| 1376 | struct bt_ctf_field_array *array; |
| 1377 | |
| 1378 | if (!field) { |
| 1379 | return; |
| 1380 | } |
| 1381 | |
| 1382 | array = container_of(field, struct bt_ctf_field_array, parent); |
| 1383 | g_ptr_array_free(array->elements, TRUE); |
| 1384 | g_free(array); |
| 1385 | } |
| 1386 | |
| 1387 | static |
| 1388 | void bt_ctf_field_sequence_destroy(struct bt_ctf_field *field) |
| 1389 | { |
| 1390 | struct bt_ctf_field_sequence *sequence; |
| 1391 | |
| 1392 | if (!field) { |
| 1393 | return; |
| 1394 | } |
| 1395 | |
| 1396 | sequence = container_of(field, struct bt_ctf_field_sequence, parent); |
| 1397 | if (sequence->elements) { |
| 1398 | g_ptr_array_free(sequence->elements, TRUE); |
| 1399 | } |
| 1400 | bt_ctf_field_put(sequence->length); |
| 1401 | g_free(sequence); |
| 1402 | } |
| 1403 | |
| 1404 | static |
| 1405 | void bt_ctf_field_string_destroy(struct bt_ctf_field *field) |
| 1406 | { |
| 1407 | struct bt_ctf_field_string *string; |
| 1408 | if (!field) { |
| 1409 | return; |
| 1410 | } |
| 1411 | |
| 1412 | string = container_of(field, struct bt_ctf_field_string, parent); |
| 1413 | if (string->payload) { |
| 1414 | g_string_free(string->payload, TRUE); |
| 1415 | } |
| 1416 | g_free(string); |
| 1417 | } |
| 1418 | |
| 1419 | static |
| 1420 | int bt_ctf_field_generic_validate(struct bt_ctf_field *field) |
| 1421 | { |
| 1422 | return (field && field->payload_set) ? 0 : -1; |
| 1423 | } |
| 1424 | |
| 1425 | static |
| 1426 | int bt_ctf_field_enumeration_validate(struct bt_ctf_field *field) |
| 1427 | { |
| 1428 | int ret; |
| 1429 | struct bt_ctf_field_enumeration *enumeration; |
| 1430 | |
| 1431 | if (!field) { |
| 1432 | ret = -1; |
| 1433 | goto end; |
| 1434 | } |
| 1435 | |
| 1436 | enumeration = container_of(field, struct bt_ctf_field_enumeration, |
| 1437 | parent); |
| 1438 | if (!enumeration->payload) { |
| 1439 | ret = -1; |
| 1440 | goto end; |
| 1441 | } |
| 1442 | |
| 1443 | ret = bt_ctf_field_validate(enumeration->payload); |
| 1444 | end: |
| 1445 | return ret; |
| 1446 | } |
| 1447 | |
| 1448 | static |
| 1449 | int bt_ctf_field_structure_validate(struct bt_ctf_field *field) |
| 1450 | { |
| 1451 | size_t i; |
| 1452 | int ret = 0; |
| 1453 | struct bt_ctf_field_structure *structure; |
| 1454 | |
| 1455 | if (!field) { |
| 1456 | ret = -1; |
| 1457 | goto end; |
| 1458 | } |
| 1459 | |
| 1460 | structure = container_of(field, struct bt_ctf_field_structure, parent); |
| 1461 | for (i = 0; i < structure->fields->len; i++) { |
| 1462 | ret = bt_ctf_field_validate(structure->fields->pdata[i]); |
| 1463 | if (ret) { |
| 1464 | goto end; |
| 1465 | } |
| 1466 | } |
| 1467 | end: |
| 1468 | return ret; |
| 1469 | } |
| 1470 | |
| 1471 | static |
| 1472 | int bt_ctf_field_variant_validate(struct bt_ctf_field *field) |
| 1473 | { |
| 1474 | int ret = 0; |
| 1475 | struct bt_ctf_field_variant *variant; |
| 1476 | |
| 1477 | if (!field) { |
| 1478 | ret = -1; |
| 1479 | goto end; |
| 1480 | } |
| 1481 | |
| 1482 | variant = container_of(field, struct bt_ctf_field_variant, parent); |
| 1483 | ret = bt_ctf_field_validate(variant->payload); |
| 1484 | end: |
| 1485 | return ret; |
| 1486 | } |
| 1487 | |
| 1488 | static |
| 1489 | int bt_ctf_field_array_validate(struct bt_ctf_field *field) |
| 1490 | { |
| 1491 | size_t i; |
| 1492 | int ret = 0; |
| 1493 | struct bt_ctf_field_array *array; |
| 1494 | |
| 1495 | if (!field) { |
| 1496 | ret = -1; |
| 1497 | goto end; |
| 1498 | } |
| 1499 | |
| 1500 | array = container_of(field, struct bt_ctf_field_array, parent); |
| 1501 | for (i = 0; i < array->elements->len; i++) { |
| 1502 | ret = bt_ctf_field_validate(array->elements->pdata[i]); |
| 1503 | if (ret) { |
| 1504 | goto end; |
| 1505 | } |
| 1506 | } |
| 1507 | end: |
| 1508 | return ret; |
| 1509 | } |
| 1510 | |
| 1511 | static |
| 1512 | int bt_ctf_field_sequence_validate(struct bt_ctf_field *field) |
| 1513 | { |
| 1514 | size_t i; |
| 1515 | int ret = 0; |
| 1516 | struct bt_ctf_field_sequence *sequence; |
| 1517 | |
| 1518 | if (!field) { |
| 1519 | ret = -1; |
| 1520 | goto end; |
| 1521 | } |
| 1522 | |
| 1523 | sequence = container_of(field, struct bt_ctf_field_sequence, parent); |
| 1524 | for (i = 0; i < sequence->elements->len; i++) { |
| 1525 | ret = bt_ctf_field_validate(sequence->elements->pdata[i]); |
| 1526 | if (ret) { |
| 1527 | goto end; |
| 1528 | } |
| 1529 | } |
| 1530 | end: |
| 1531 | return ret; |
| 1532 | } |
| 1533 | |
| 1534 | static |
| 1535 | int bt_ctf_field_generic_reset(struct bt_ctf_field *field) |
| 1536 | { |
| 1537 | int ret = 0; |
| 1538 | |
| 1539 | if (!field) { |
| 1540 | ret = -1; |
| 1541 | goto end; |
| 1542 | } |
| 1543 | |
| 1544 | field->payload_set = 0; |
| 1545 | end: |
| 1546 | return ret; |
| 1547 | } |
| 1548 | |
| 1549 | static |
| 1550 | int bt_ctf_field_enumeration_reset(struct bt_ctf_field *field) |
| 1551 | { |
| 1552 | int ret = 0; |
| 1553 | struct bt_ctf_field_enumeration *enumeration; |
| 1554 | |
| 1555 | if (!field) { |
| 1556 | ret = -1; |
| 1557 | goto end; |
| 1558 | } |
| 1559 | |
| 1560 | enumeration = container_of(field, struct bt_ctf_field_enumeration, |
| 1561 | parent); |
| 1562 | if (!enumeration->payload) { |
| 1563 | goto end; |
| 1564 | } |
| 1565 | |
| 1566 | ret = bt_ctf_field_reset(enumeration->payload); |
| 1567 | end: |
| 1568 | return ret; |
| 1569 | } |
| 1570 | |
| 1571 | static |
| 1572 | int bt_ctf_field_structure_reset(struct bt_ctf_field *field) |
| 1573 | { |
| 1574 | size_t i; |
| 1575 | int ret = 0; |
| 1576 | struct bt_ctf_field_structure *structure; |
| 1577 | |
| 1578 | if (!field) { |
| 1579 | ret = -1; |
| 1580 | goto end; |
| 1581 | } |
| 1582 | |
| 1583 | structure = container_of(field, struct bt_ctf_field_structure, parent); |
| 1584 | for (i = 0; i < structure->fields->len; i++) { |
| 1585 | struct bt_ctf_field *member = structure->fields->pdata[i]; |
| 1586 | |
| 1587 | if (!member) { |
| 1588 | /* |
| 1589 | * Structure members are lazily initialized; skip if |
| 1590 | * this member has not been allocated yet. |
| 1591 | */ |
| 1592 | continue; |
| 1593 | } |
| 1594 | |
| 1595 | ret = bt_ctf_field_reset(member); |
| 1596 | if (ret) { |
| 1597 | goto end; |
| 1598 | } |
| 1599 | } |
| 1600 | end: |
| 1601 | return ret; |
| 1602 | } |
| 1603 | |
| 1604 | static |
| 1605 | int bt_ctf_field_variant_reset(struct bt_ctf_field *field) |
| 1606 | { |
| 1607 | int ret = 0; |
| 1608 | struct bt_ctf_field_variant *variant; |
| 1609 | |
| 1610 | if (!field) { |
| 1611 | ret = -1; |
| 1612 | goto end; |
| 1613 | } |
| 1614 | |
| 1615 | variant = container_of(field, struct bt_ctf_field_variant, parent); |
| 1616 | if (variant->payload) { |
| 1617 | ret = bt_ctf_field_reset(variant->payload); |
| 1618 | } |
| 1619 | end: |
| 1620 | return ret; |
| 1621 | } |
| 1622 | |
| 1623 | static |
| 1624 | int bt_ctf_field_array_reset(struct bt_ctf_field *field) |
| 1625 | { |
| 1626 | size_t i; |
| 1627 | int ret = 0; |
| 1628 | struct bt_ctf_field_array *array; |
| 1629 | |
| 1630 | if (!field) { |
| 1631 | ret = -1; |
| 1632 | goto end; |
| 1633 | } |
| 1634 | |
| 1635 | array = container_of(field, struct bt_ctf_field_array, parent); |
| 1636 | for (i = 0; i < array->elements->len; i++) { |
| 1637 | struct bt_ctf_field *member = array->elements->pdata[i]; |
| 1638 | |
| 1639 | if (!member) { |
| 1640 | /* |
| 1641 | * Array elements are lazily initialized; skip if |
| 1642 | * this member has not been allocated yet. |
| 1643 | */ |
| 1644 | continue; |
| 1645 | } |
| 1646 | |
| 1647 | ret = bt_ctf_field_reset(member); |
| 1648 | if (ret) { |
| 1649 | goto end; |
| 1650 | } |
| 1651 | } |
| 1652 | end: |
| 1653 | return ret; |
| 1654 | } |
| 1655 | |
| 1656 | static |
| 1657 | int bt_ctf_field_sequence_reset(struct bt_ctf_field *field) |
| 1658 | { |
| 1659 | size_t i; |
| 1660 | int ret = 0; |
| 1661 | struct bt_ctf_field_sequence *sequence; |
| 1662 | |
| 1663 | if (!field) { |
| 1664 | ret = -1; |
| 1665 | goto end; |
| 1666 | } |
| 1667 | |
| 1668 | sequence = container_of(field, struct bt_ctf_field_sequence, parent); |
| 1669 | for (i = 0; i < sequence->elements->len; i++) { |
| 1670 | struct bt_ctf_field *member = sequence->elements->pdata[i]; |
| 1671 | |
| 1672 | if (!member) { |
| 1673 | /* |
| 1674 | * Sequence elements are lazily initialized; skip if |
| 1675 | * this member has not been allocated yet. |
| 1676 | */ |
| 1677 | continue; |
| 1678 | } |
| 1679 | |
| 1680 | ret = bt_ctf_field_reset(member); |
| 1681 | if (ret) { |
| 1682 | goto end; |
| 1683 | } |
| 1684 | } |
| 1685 | end: |
| 1686 | return ret; |
| 1687 | } |
| 1688 | |
| 1689 | static |
| 1690 | int bt_ctf_field_string_reset(struct bt_ctf_field *field) |
| 1691 | { |
| 1692 | int ret = 0; |
| 1693 | struct bt_ctf_field_string *string; |
| 1694 | |
| 1695 | if (!field) { |
| 1696 | ret = -1; |
| 1697 | goto end; |
| 1698 | } |
| 1699 | |
| 1700 | ret = bt_ctf_field_generic_reset(field); |
| 1701 | if (ret) { |
| 1702 | goto end; |
| 1703 | } |
| 1704 | |
| 1705 | string = container_of(field, struct bt_ctf_field_string, parent); |
| 1706 | if (string->payload) { |
| 1707 | g_string_truncate(string->payload, 0); |
| 1708 | } |
| 1709 | end: |
| 1710 | return ret; |
| 1711 | } |
| 1712 | |
| 1713 | static |
| 1714 | int bt_ctf_field_integer_serialize(struct bt_ctf_field *field, |
| 1715 | struct ctf_stream_pos *pos) |
| 1716 | { |
| 1717 | int ret = 0; |
| 1718 | struct bt_ctf_field_integer *integer = container_of(field, |
| 1719 | struct bt_ctf_field_integer, parent); |
| 1720 | |
| 1721 | retry: |
| 1722 | ret = ctf_integer_write(&pos->parent, &integer->definition.p); |
| 1723 | if (ret == -EFAULT) { |
| 1724 | /* |
| 1725 | * The field is too large to fit in the current packet's |
| 1726 | * remaining space. Bump the packet size and retry. |
| 1727 | */ |
| 1728 | ret = increase_packet_size(pos); |
| 1729 | if (ret) { |
| 1730 | goto end; |
| 1731 | } |
| 1732 | goto retry; |
| 1733 | } |
| 1734 | end: |
| 1735 | return ret; |
| 1736 | } |
| 1737 | |
| 1738 | static |
| 1739 | int bt_ctf_field_enumeration_serialize(struct bt_ctf_field *field, |
| 1740 | struct ctf_stream_pos *pos) |
| 1741 | { |
| 1742 | struct bt_ctf_field_enumeration *enumeration = container_of( |
| 1743 | field, struct bt_ctf_field_enumeration, parent); |
| 1744 | |
| 1745 | return bt_ctf_field_serialize(enumeration->payload, pos); |
| 1746 | } |
| 1747 | |
| 1748 | static |
| 1749 | int bt_ctf_field_floating_point_serialize(struct bt_ctf_field *field, |
| 1750 | struct ctf_stream_pos *pos) |
| 1751 | { |
| 1752 | int ret = 0; |
| 1753 | struct bt_ctf_field_floating_point *floating_point = container_of(field, |
| 1754 | struct bt_ctf_field_floating_point, parent); |
| 1755 | |
| 1756 | retry: |
| 1757 | ret = ctf_float_write(&pos->parent, &floating_point->definition.p); |
| 1758 | if (ret == -EFAULT) { |
| 1759 | /* |
| 1760 | * The field is too large to fit in the current packet's |
| 1761 | * remaining space. Bump the packet size and retry. |
| 1762 | */ |
| 1763 | ret = increase_packet_size(pos); |
| 1764 | if (ret) { |
| 1765 | goto end; |
| 1766 | } |
| 1767 | goto retry; |
| 1768 | } |
| 1769 | end: |
| 1770 | return ret; |
| 1771 | } |
| 1772 | |
| 1773 | static |
| 1774 | int bt_ctf_field_structure_serialize(struct bt_ctf_field *field, |
| 1775 | struct ctf_stream_pos *pos) |
| 1776 | { |
| 1777 | size_t i; |
| 1778 | int ret = 0; |
| 1779 | struct bt_ctf_field_structure *structure = container_of( |
| 1780 | field, struct bt_ctf_field_structure, parent); |
| 1781 | |
| 1782 | while (!ctf_pos_access_ok(pos, |
| 1783 | offset_align(pos->offset, |
| 1784 | field->type->declaration->alignment))) { |
| 1785 | ret = increase_packet_size(pos); |
| 1786 | if (ret) { |
| 1787 | goto end; |
| 1788 | } |
| 1789 | } |
| 1790 | |
| 1791 | if (!ctf_align_pos(pos, field->type->declaration->alignment)) { |
| 1792 | ret = -1; |
| 1793 | goto end; |
| 1794 | } |
| 1795 | |
| 1796 | for (i = 0; i < structure->fields->len; i++) { |
| 1797 | struct bt_ctf_field *field = g_ptr_array_index( |
| 1798 | structure->fields, i); |
| 1799 | |
| 1800 | ret = bt_ctf_field_serialize(field, pos); |
| 1801 | if (ret) { |
| 1802 | break; |
| 1803 | } |
| 1804 | } |
| 1805 | end: |
| 1806 | return ret; |
| 1807 | } |
| 1808 | |
| 1809 | static |
| 1810 | int bt_ctf_field_variant_serialize(struct bt_ctf_field *field, |
| 1811 | struct ctf_stream_pos *pos) |
| 1812 | { |
| 1813 | struct bt_ctf_field_variant *variant = container_of( |
| 1814 | field, struct bt_ctf_field_variant, parent); |
| 1815 | |
| 1816 | return bt_ctf_field_serialize(variant->payload, pos); |
| 1817 | } |
| 1818 | |
| 1819 | static |
| 1820 | int bt_ctf_field_array_serialize(struct bt_ctf_field *field, |
| 1821 | struct ctf_stream_pos *pos) |
| 1822 | { |
| 1823 | size_t i; |
| 1824 | int ret = 0; |
| 1825 | struct bt_ctf_field_array *array = container_of( |
| 1826 | field, struct bt_ctf_field_array, parent); |
| 1827 | |
| 1828 | for (i = 0; i < array->elements->len; i++) { |
| 1829 | ret = bt_ctf_field_serialize( |
| 1830 | g_ptr_array_index(array->elements, i), pos); |
| 1831 | if (ret) { |
| 1832 | goto end; |
| 1833 | } |
| 1834 | } |
| 1835 | end: |
| 1836 | return ret; |
| 1837 | } |
| 1838 | |
| 1839 | static |
| 1840 | int bt_ctf_field_sequence_serialize(struct bt_ctf_field *field, |
| 1841 | struct ctf_stream_pos *pos) |
| 1842 | { |
| 1843 | size_t i; |
| 1844 | int ret = 0; |
| 1845 | struct bt_ctf_field_sequence *sequence = container_of( |
| 1846 | field, struct bt_ctf_field_sequence, parent); |
| 1847 | |
| 1848 | for (i = 0; i < sequence->elements->len; i++) { |
| 1849 | ret = bt_ctf_field_serialize( |
| 1850 | g_ptr_array_index(sequence->elements, i), pos); |
| 1851 | if (ret) { |
| 1852 | goto end; |
| 1853 | } |
| 1854 | } |
| 1855 | end: |
| 1856 | return ret; |
| 1857 | } |
| 1858 | |
| 1859 | static |
| 1860 | int bt_ctf_field_string_serialize(struct bt_ctf_field *field, |
| 1861 | struct ctf_stream_pos *pos) |
| 1862 | { |
| 1863 | size_t i; |
| 1864 | int ret = 0; |
| 1865 | struct bt_ctf_field_string *string = container_of(field, |
| 1866 | struct bt_ctf_field_string, parent); |
| 1867 | struct bt_ctf_field_type *character_type = |
| 1868 | get_field_type(FIELD_TYPE_ALIAS_UINT8_T); |
| 1869 | struct bt_ctf_field *character = bt_ctf_field_create(character_type); |
| 1870 | |
| 1871 | for (i = 0; i < string->payload->len + 1; i++) { |
| 1872 | ret = bt_ctf_field_unsigned_integer_set_value(character, |
| 1873 | (uint64_t) string->payload->str[i]); |
| 1874 | if (ret) { |
| 1875 | goto end; |
| 1876 | } |
| 1877 | |
| 1878 | ret = bt_ctf_field_integer_serialize(character, pos); |
| 1879 | if (ret) { |
| 1880 | goto end; |
| 1881 | } |
| 1882 | } |
| 1883 | end: |
| 1884 | bt_ctf_field_put(character); |
| 1885 | bt_ctf_field_type_put(character_type); |
| 1886 | return ret; |
| 1887 | } |
| 1888 | |
| 1889 | static |
| 1890 | int bt_ctf_field_integer_copy(struct bt_ctf_field *src, |
| 1891 | struct bt_ctf_field *dst) |
| 1892 | { |
| 1893 | struct bt_ctf_field_integer *integer_src, *integer_dst; |
| 1894 | |
| 1895 | integer_src = container_of(src, struct bt_ctf_field_integer, parent); |
| 1896 | integer_dst = container_of(dst, struct bt_ctf_field_integer, parent); |
| 1897 | |
| 1898 | memcpy(&integer_dst->definition, &integer_src->definition, |
| 1899 | sizeof(struct definition_integer)); |
| 1900 | return 0; |
| 1901 | } |
| 1902 | |
| 1903 | static |
| 1904 | int bt_ctf_field_enumeration_copy(struct bt_ctf_field *src, |
| 1905 | struct bt_ctf_field *dst) |
| 1906 | { |
| 1907 | int ret = 0; |
| 1908 | struct bt_ctf_field_enumeration *enum_src, *enum_dst; |
| 1909 | |
| 1910 | enum_src = container_of(src, struct bt_ctf_field_enumeration, parent); |
| 1911 | enum_dst = container_of(dst, struct bt_ctf_field_enumeration, parent); |
| 1912 | |
| 1913 | if (enum_src->payload) { |
| 1914 | enum_dst->payload = bt_ctf_field_copy(enum_src->payload); |
| 1915 | if (!enum_dst->payload) { |
| 1916 | ret = -1; |
| 1917 | goto end; |
| 1918 | } |
| 1919 | } |
| 1920 | end: |
| 1921 | return ret; |
| 1922 | } |
| 1923 | |
| 1924 | static |
| 1925 | int bt_ctf_field_floating_point_copy( |
| 1926 | struct bt_ctf_field *src, struct bt_ctf_field *dst) |
| 1927 | { |
| 1928 | struct bt_ctf_field_floating_point *float_src, *float_dst; |
| 1929 | |
| 1930 | float_src = container_of(src, struct bt_ctf_field_floating_point, |
| 1931 | parent); |
| 1932 | float_dst = container_of(dst, struct bt_ctf_field_floating_point, |
| 1933 | parent); |
| 1934 | |
| 1935 | memcpy(&float_dst->definition, &float_src->definition, |
| 1936 | sizeof(struct definition_float)); |
| 1937 | memcpy(&float_dst->sign, &float_src->sign, |
| 1938 | sizeof(struct definition_integer)); |
| 1939 | memcpy(&float_dst->mantissa, &float_src->mantissa, |
| 1940 | sizeof(struct definition_integer)); |
| 1941 | memcpy(&float_dst->exp, &float_src->exp, |
| 1942 | sizeof(struct definition_integer)); |
| 1943 | return 0; |
| 1944 | } |
| 1945 | |
| 1946 | static |
| 1947 | int bt_ctf_field_structure_copy(struct bt_ctf_field *src, |
| 1948 | struct bt_ctf_field *dst) |
| 1949 | { |
| 1950 | int ret = 0, i; |
| 1951 | struct bt_ctf_field_structure *struct_src, *struct_dst; |
| 1952 | |
| 1953 | struct_src = container_of(src, struct bt_ctf_field_structure, parent); |
| 1954 | struct_dst = container_of(dst, struct bt_ctf_field_structure, parent); |
| 1955 | |
| 1956 | /* This field_name_to_index HT is owned by the structure field type */ |
| 1957 | struct_dst->field_name_to_index = struct_src->field_name_to_index; |
| 1958 | g_ptr_array_set_size(struct_dst->fields, struct_src->fields->len); |
| 1959 | |
| 1960 | for (i = 0; i < struct_src->fields->len; i++) { |
| 1961 | struct bt_ctf_field *field = |
| 1962 | g_ptr_array_index(struct_src->fields, i); |
| 1963 | struct bt_ctf_field *field_copy = NULL; |
| 1964 | |
| 1965 | if (field) { |
| 1966 | field_copy = bt_ctf_field_copy(field); |
| 1967 | |
| 1968 | if (!field_copy) { |
| 1969 | ret = -1; |
| 1970 | goto end; |
| 1971 | } |
| 1972 | } |
| 1973 | |
| 1974 | g_ptr_array_index(struct_dst->fields, i) = field_copy; |
| 1975 | } |
| 1976 | end: |
| 1977 | return ret; |
| 1978 | } |
| 1979 | |
| 1980 | static |
| 1981 | int bt_ctf_field_variant_copy(struct bt_ctf_field *src, |
| 1982 | struct bt_ctf_field *dst) |
| 1983 | { |
| 1984 | int ret = 0; |
| 1985 | struct bt_ctf_field_variant *variant_src, *variant_dst; |
| 1986 | |
| 1987 | variant_src = container_of(src, struct bt_ctf_field_variant, parent); |
| 1988 | variant_dst = container_of(dst, struct bt_ctf_field_variant, parent); |
| 1989 | |
| 1990 | if (variant_src->tag) { |
| 1991 | variant_dst->tag = bt_ctf_field_copy(variant_src->tag); |
| 1992 | if (!variant_dst->tag) { |
| 1993 | ret = -1; |
| 1994 | goto end; |
| 1995 | } |
| 1996 | } |
| 1997 | if (variant_src->payload) { |
| 1998 | variant_dst->payload = bt_ctf_field_copy(variant_src->payload); |
| 1999 | if (!variant_dst->payload) { |
| 2000 | ret = -1; |
| 2001 | goto end; |
| 2002 | } |
| 2003 | } |
| 2004 | end: |
| 2005 | return ret; |
| 2006 | } |
| 2007 | |
| 2008 | static |
| 2009 | int bt_ctf_field_array_copy(struct bt_ctf_field *src, |
| 2010 | struct bt_ctf_field *dst) |
| 2011 | { |
| 2012 | int ret = 0, i; |
| 2013 | struct bt_ctf_field_array *array_src, *array_dst; |
| 2014 | |
| 2015 | array_src = container_of(src, struct bt_ctf_field_array, parent); |
| 2016 | array_dst = container_of(dst, struct bt_ctf_field_array, parent); |
| 2017 | |
| 2018 | g_ptr_array_set_size(array_dst->elements, array_src->elements->len); |
| 2019 | for (i = 0; i < array_src->elements->len; i++) { |
| 2020 | struct bt_ctf_field *field = |
| 2021 | g_ptr_array_index(array_src->elements, i); |
| 2022 | struct bt_ctf_field *field_copy = NULL; |
| 2023 | |
| 2024 | if (field) { |
| 2025 | field_copy = bt_ctf_field_copy(field); |
| 2026 | |
| 2027 | if (!field_copy) { |
| 2028 | ret = -1; |
| 2029 | goto end; |
| 2030 | } |
| 2031 | } |
| 2032 | |
| 2033 | g_ptr_array_index(array_dst->elements, i) = field_copy; |
| 2034 | } |
| 2035 | end: |
| 2036 | return ret; |
| 2037 | } |
| 2038 | |
| 2039 | static |
| 2040 | int bt_ctf_field_sequence_copy(struct bt_ctf_field *src, |
| 2041 | struct bt_ctf_field *dst) |
| 2042 | { |
| 2043 | int ret = 0, i; |
| 2044 | struct bt_ctf_field_sequence *sequence_src, *sequence_dst; |
| 2045 | struct bt_ctf_field *src_length; |
| 2046 | struct bt_ctf_field *dst_length; |
| 2047 | |
| 2048 | sequence_src = container_of(src, struct bt_ctf_field_sequence, parent); |
| 2049 | sequence_dst = container_of(dst, struct bt_ctf_field_sequence, parent); |
| 2050 | |
| 2051 | src_length = bt_ctf_field_sequence_get_length(src); |
| 2052 | |
| 2053 | if (!src_length) { |
| 2054 | /* no length set yet: keep destination sequence empty */ |
| 2055 | goto end; |
| 2056 | } |
| 2057 | |
| 2058 | /* copy source length */ |
| 2059 | dst_length = bt_ctf_field_copy(src_length); |
| 2060 | bt_ctf_field_put(src_length); |
| 2061 | |
| 2062 | if (!dst_length) { |
| 2063 | ret = -1; |
| 2064 | goto end; |
| 2065 | } |
| 2066 | |
| 2067 | /* this will initialize the destination sequence's internal array */ |
| 2068 | ret = bt_ctf_field_sequence_set_length(dst, dst_length); |
| 2069 | bt_ctf_field_put(dst_length); |
| 2070 | |
| 2071 | if (ret) { |
| 2072 | goto end; |
| 2073 | } |
| 2074 | |
| 2075 | assert(sequence_dst->elements->len == sequence_src->elements->len); |
| 2076 | |
| 2077 | for (i = 0; i < sequence_src->elements->len; i++) { |
| 2078 | struct bt_ctf_field *field = |
| 2079 | g_ptr_array_index(sequence_src->elements, i); |
| 2080 | struct bt_ctf_field *field_copy = NULL; |
| 2081 | |
| 2082 | if (field) { |
| 2083 | field_copy = bt_ctf_field_copy(field); |
| 2084 | |
| 2085 | if (!field_copy) { |
| 2086 | ret = -1; |
| 2087 | goto end; |
| 2088 | } |
| 2089 | } |
| 2090 | |
| 2091 | g_ptr_array_index(sequence_dst->elements, i) = field_copy; |
| 2092 | } |
| 2093 | end: |
| 2094 | return ret; |
| 2095 | } |
| 2096 | |
| 2097 | static |
| 2098 | int bt_ctf_field_string_copy(struct bt_ctf_field *src, |
| 2099 | struct bt_ctf_field *dst) |
| 2100 | { |
| 2101 | int ret = 0; |
| 2102 | struct bt_ctf_field_string *string_src, *string_dst; |
| 2103 | |
| 2104 | string_src = container_of(src, struct bt_ctf_field_string, parent); |
| 2105 | string_dst = container_of(dst, struct bt_ctf_field_string, parent); |
| 2106 | |
| 2107 | if (string_src->payload) { |
| 2108 | string_dst->payload = g_string_new(string_src->payload->str); |
| 2109 | if (!string_dst->payload) { |
| 2110 | ret = -1; |
| 2111 | goto end; |
| 2112 | } |
| 2113 | } |
| 2114 | end: |
| 2115 | return ret; |
| 2116 | } |
| 2117 | |
| 2118 | static |
| 2119 | int increase_packet_size(struct ctf_stream_pos *pos) |
| 2120 | { |
| 2121 | int ret; |
| 2122 | |
| 2123 | assert(pos); |
| 2124 | ret = munmap_align(pos->base_mma); |
| 2125 | if (ret) { |
| 2126 | goto end; |
| 2127 | } |
| 2128 | |
| 2129 | pos->packet_size += PACKET_LEN_INCREMENT; |
| 2130 | ret = posix_fallocate(pos->fd, pos->mmap_offset, |
| 2131 | pos->packet_size / CHAR_BIT); |
| 2132 | if (ret) { |
| 2133 | goto end; |
| 2134 | } |
| 2135 | |
| 2136 | pos->base_mma = mmap_align(pos->packet_size / CHAR_BIT, pos->prot, |
| 2137 | pos->flags, pos->fd, pos->mmap_offset); |
| 2138 | if (pos->base_mma == MAP_FAILED) { |
| 2139 | ret = -1; |
| 2140 | } |
| 2141 | end: |
| 2142 | return ret; |
| 2143 | } |