formats/ctf/ir/event-types.c

   1 /*
   2  * event-types.c
   3  *
   4  * Babeltrace CTF IR - Event Types
   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-types.h>
  30 #include <babeltrace/ctf-ir/event-types-internal.h>
  31 #include <babeltrace/ctf-ir/utils.h>
  32 #include <babeltrace/ctf-ir/clock.h>
  33 #include <babeltrace/ctf-writer/writer-internal.h>
  34 #include <babeltrace/compiler.h>
  35 #include <babeltrace/endian.h>
  36 #include <float.h>
  37 #include <inttypes.h>
  38 #include <stdlib.h>
  39
  40 struct range_overlap_query {
  41         union {
  42                 uint64_t _unsigned;
  43                 int64_t _signed;
  44         } range_start;
  45
  46         union {
  47                 uint64_t _unsigned;
  48                 int64_t _signed;
  49         } range_end;
  50         int overlaps;
  51         GQuark mapping_name;
  52 };
  53
  54 static
  55 void bt_ctf_field_type_destroy(struct bt_ctf_ref *);
  56 static
  57 void bt_ctf_field_type_integer_destroy(struct bt_ctf_ref *);
  58 static
  59 void bt_ctf_field_type_enumeration_destroy(struct bt_ctf_ref *);
  60 static
  61 void bt_ctf_field_type_floating_point_destroy(struct bt_ctf_ref *);
  62 static
  63 void bt_ctf_field_type_structure_destroy(struct bt_ctf_ref *);
  64 static
  65 void bt_ctf_field_type_variant_destroy(struct bt_ctf_ref *);
  66 static
  67 void bt_ctf_field_type_array_destroy(struct bt_ctf_ref *);
  68 static
  69 void bt_ctf_field_type_sequence_destroy(struct bt_ctf_ref *);
  70 static
  71 void bt_ctf_field_type_string_destroy(struct bt_ctf_ref *);
  72
  73 static
  74 void (* const type_destroy_funcs[])(struct bt_ctf_ref *) = {
  75         [CTF_TYPE_INTEGER] = bt_ctf_field_type_integer_destroy,
  76         [CTF_TYPE_ENUM] =
  77                 bt_ctf_field_type_enumeration_destroy,
  78         [CTF_TYPE_FLOAT] =
  79                 bt_ctf_field_type_floating_point_destroy,
  80         [CTF_TYPE_STRUCT] = bt_ctf_field_type_structure_destroy,
  81         [CTF_TYPE_VARIANT] = bt_ctf_field_type_variant_destroy,
  82         [CTF_TYPE_ARRAY] = bt_ctf_field_type_array_destroy,
  83         [CTF_TYPE_SEQUENCE] = bt_ctf_field_type_sequence_destroy,
  84         [CTF_TYPE_STRING] = bt_ctf_field_type_string_destroy,
  85 };
  86
  87 static
  88 void generic_field_type_freeze(struct bt_ctf_field_type *);
  89 static
  90 void bt_ctf_field_type_enumeration_freeze(struct bt_ctf_field_type *);
  91 static
  92 void bt_ctf_field_type_structure_freeze(struct bt_ctf_field_type *);
  93 static
  94 void bt_ctf_field_type_variant_freeze(struct bt_ctf_field_type *);
  95 static
  96 void bt_ctf_field_type_array_freeze(struct bt_ctf_field_type *);
  97 static
  98 void bt_ctf_field_type_sequence_freeze(struct bt_ctf_field_type *);
  99
 100 static
 101 type_freeze_func const type_freeze_funcs[] = {
 102         [CTF_TYPE_INTEGER] = generic_field_type_freeze,
 103         [CTF_TYPE_ENUM] = bt_ctf_field_type_enumeration_freeze,
 104         [CTF_TYPE_FLOAT] = generic_field_type_freeze,
 105         [CTF_TYPE_STRUCT] = bt_ctf_field_type_structure_freeze,
 106         [CTF_TYPE_VARIANT] = bt_ctf_field_type_variant_freeze,
 107         [CTF_TYPE_ARRAY] = bt_ctf_field_type_array_freeze,
 108         [CTF_TYPE_SEQUENCE] = bt_ctf_field_type_sequence_freeze,
 109         [CTF_TYPE_STRING] = generic_field_type_freeze,
 110 };
 111
 112 static
 113 int bt_ctf_field_type_integer_serialize(struct bt_ctf_field_type *,
 114                 struct metadata_context *);
 115 static
 116 int bt_ctf_field_type_enumeration_serialize(struct bt_ctf_field_type *,
 117                 struct metadata_context *);
 118 static
 119 int bt_ctf_field_type_floating_point_serialize(
 120                 struct bt_ctf_field_type *, struct metadata_context *);
 121 static
 122 int bt_ctf_field_type_structure_serialize(struct bt_ctf_field_type *,
 123                 struct metadata_context *);
 124 static
 125 int bt_ctf_field_type_variant_serialize(struct bt_ctf_field_type *,
 126                 struct metadata_context *);
 127 static
 128 int bt_ctf_field_type_array_serialize(struct bt_ctf_field_type *,
 129                 struct metadata_context *);
 130 static
 131 int bt_ctf_field_type_sequence_serialize(struct bt_ctf_field_type *,
 132                 struct metadata_context *);
 133 static
 134 int bt_ctf_field_type_string_serialize(struct bt_ctf_field_type *,
 135                 struct metadata_context *);
 136
 137 static
 138 type_serialize_func const type_serialize_funcs[] = {
 139         [CTF_TYPE_INTEGER] = bt_ctf_field_type_integer_serialize,
 140         [CTF_TYPE_ENUM] =
 141                 bt_ctf_field_type_enumeration_serialize,
 142         [CTF_TYPE_FLOAT] =
 143                 bt_ctf_field_type_floating_point_serialize,
 144         [CTF_TYPE_STRUCT] =
 145                 bt_ctf_field_type_structure_serialize,
 146         [CTF_TYPE_VARIANT] = bt_ctf_field_type_variant_serialize,
 147         [CTF_TYPE_ARRAY] = bt_ctf_field_type_array_serialize,
 148         [CTF_TYPE_SEQUENCE] = bt_ctf_field_type_sequence_serialize,
 149         [CTF_TYPE_STRING] = bt_ctf_field_type_string_serialize,
 150 };
 151
 152 static
 153 void bt_ctf_field_type_integer_set_byte_order(struct bt_ctf_field_type *,
 154                 int byte_order, int set_native);
 155 static
 156 void bt_ctf_field_type_enumeration_set_byte_order(struct bt_ctf_field_type *,
 157                 int byte_order, int set_native);
 158 static
 159 void bt_ctf_field_type_floating_point_set_byte_order(
 160                 struct bt_ctf_field_type *, int byte_order, int set_native);
 161 static
 162 void bt_ctf_field_type_structure_set_byte_order(struct bt_ctf_field_type *,
 163                 int byte_order, int set_native);
 164 static
 165 void bt_ctf_field_type_variant_set_byte_order(struct bt_ctf_field_type *,
 166                 int byte_order, int set_native);
 167 static
 168 void bt_ctf_field_type_array_set_byte_order(struct bt_ctf_field_type *,
 169                 int byte_order, int set_native);
 170 static
 171 void bt_ctf_field_type_sequence_set_byte_order(struct bt_ctf_field_type *,
 172                 int byte_order, int set_native);
 173
 174 /* The set_native flag only set the byte order if it is set to native */
 175 static
 176 void (* const set_byte_order_funcs[])(struct bt_ctf_field_type *,
 177                 int byte_order, int set_native) = {
 178         [CTF_TYPE_INTEGER] = bt_ctf_field_type_integer_set_byte_order,
 179         [CTF_TYPE_ENUM] =
 180                 bt_ctf_field_type_enumeration_set_byte_order,
 181         [CTF_TYPE_FLOAT] =
 182                 bt_ctf_field_type_floating_point_set_byte_order,
 183         [CTF_TYPE_STRUCT] =
 184                 bt_ctf_field_type_structure_set_byte_order,
 185         [CTF_TYPE_VARIANT] = bt_ctf_field_type_variant_set_byte_order,
 186         [CTF_TYPE_ARRAY] = bt_ctf_field_type_array_set_byte_order,
 187         [CTF_TYPE_SEQUENCE] = bt_ctf_field_type_sequence_set_byte_order,
 188         [CTF_TYPE_STRING] = NULL,
 189 };
 190
 191 static
 192 struct bt_ctf_field_type *bt_ctf_field_type_integer_copy(
 193                 struct bt_ctf_field_type *);
 194 static
 195 struct bt_ctf_field_type *bt_ctf_field_type_enumeration_copy(
 196                 struct bt_ctf_field_type *);
 197 static
 198 struct bt_ctf_field_type *bt_ctf_field_type_floating_point_copy(
 199                 struct bt_ctf_field_type *);
 200 static
 201 struct bt_ctf_field_type *bt_ctf_field_type_structure_copy(
 202                 struct bt_ctf_field_type *);
 203 static
 204 struct bt_ctf_field_type *bt_ctf_field_type_variant_copy(
 205                 struct bt_ctf_field_type *);
 206 static
 207 struct bt_ctf_field_type *bt_ctf_field_type_array_copy(
 208                 struct bt_ctf_field_type *);
 209 static
 210 struct bt_ctf_field_type *bt_ctf_field_type_sequence_copy(
 211                 struct bt_ctf_field_type *);
 212 static
 213 struct bt_ctf_field_type *bt_ctf_field_type_string_copy(
 214                 struct bt_ctf_field_type *);
 215
 216 static
 217 struct bt_ctf_field_type *(* const type_copy_funcs[])(
 218                 struct bt_ctf_field_type *) = {
 219         [CTF_TYPE_INTEGER] = bt_ctf_field_type_integer_copy,
 220         [CTF_TYPE_ENUM] = bt_ctf_field_type_enumeration_copy,
 221         [CTF_TYPE_FLOAT] = bt_ctf_field_type_floating_point_copy,
 222         [CTF_TYPE_STRUCT] = bt_ctf_field_type_structure_copy,
 223         [CTF_TYPE_VARIANT] = bt_ctf_field_type_variant_copy,
 224         [CTF_TYPE_ARRAY] = bt_ctf_field_type_array_copy,
 225         [CTF_TYPE_SEQUENCE] = bt_ctf_field_type_sequence_copy,
 226         [CTF_TYPE_STRING] = bt_ctf_field_type_string_copy,
 227 };
 228
 229 static
 230 void destroy_enumeration_mapping(struct enumeration_mapping *mapping)
 231 {
 232         g_free(mapping);
 233 }
 234
 235 static
 236 void destroy_structure_field(struct structure_field *field)
 237 {
 238         if (field->type) {
 239                 bt_ctf_field_type_put(field->type);
 240         }
 241
 242         g_free(field);
 243 }
 244
 245 static
 246 void check_ranges_overlap(gpointer element, gpointer query)
 247 {
 248         struct enumeration_mapping *mapping = element;
 249         struct range_overlap_query *overlap_query = query;
 250
 251         if (mapping->range_start._signed <= overlap_query->range_end._signed
 252                 && overlap_query->range_start._signed <=
 253                 mapping->range_end._signed) {
 254                 overlap_query->overlaps = 1;
 255                 overlap_query->mapping_name = mapping->string;
 256         }
 257
 258         overlap_query->overlaps |=
 259                 mapping->string == overlap_query->mapping_name;
 260 }
 261
 262 static
 263 void check_ranges_overlap_unsigned(gpointer element, gpointer query)
 264 {
 265         struct enumeration_mapping *mapping = element;
 266         struct range_overlap_query *overlap_query = query;
 267
 268         if (mapping->range_start._unsigned <= overlap_query->range_end._unsigned
 269                 && overlap_query->range_start._unsigned <=
 270                 mapping->range_end._unsigned) {
 271                 overlap_query->overlaps = 1;
 272                 overlap_query->mapping_name = mapping->string;
 273         }
 274
 275         overlap_query->overlaps |=
 276                 mapping->string == overlap_query->mapping_name;
 277 }
 278
 279 static
 280 gint compare_enumeration_mappings_signed(struct enumeration_mapping **a,
 281                 struct enumeration_mapping **b)
 282 {
 283         return ((*a)->range_start._signed < (*b)->range_start._signed) ? -1 : 1;
 284 }
 285
 286 static
 287 gint compare_enumeration_mappings_unsigned(struct enumeration_mapping **a,
 288                 struct enumeration_mapping **b)
 289 {
 290         return ((*a)->range_start._unsigned < (*b)->range_start._unsigned) ? -1 : 1;
 291 }
 292
 293 static
 294 void bt_ctf_field_type_init(struct bt_ctf_field_type *type)
 295 {
 296         enum ctf_type_id type_id = type->declaration->id;
 297         int ret;
 298
 299         assert(type && (type_id > CTF_TYPE_UNKNOWN) &&
 300                 (type_id < NR_CTF_TYPES));
 301
 302         bt_ctf_ref_init(&type->ref_count);
 303         type->freeze = type_freeze_funcs[type_id];
 304         type->serialize = type_serialize_funcs[type_id];
 305         ret = bt_ctf_field_type_set_byte_order(type, BT_CTF_BYTE_ORDER_NATIVE);
 306         assert(!ret);
 307         type->declaration->alignment = 1;
 308 }
 309
 310 static
 311 int add_structure_field(GPtrArray *fields,
 312                 GHashTable *field_name_to_index,
 313                 struct bt_ctf_field_type *field_type,
 314                 const char *field_name)
 315 {
 316         int ret = 0;
 317         GQuark name_quark = g_quark_from_string(field_name);
 318         struct structure_field *field;
 319
 320         /* Make sure structure does not contain a field of the same name */
 321         if (g_hash_table_lookup_extended(field_name_to_index,
 322                 GUINT_TO_POINTER(name_quark), NULL, NULL)) {
 323                 ret = -1;
 324                 goto end;
 325         }
 326
 327         field = g_new0(struct structure_field, 1);
 328         if (!field) {
 329                 ret = -1;
 330                 goto end;
 331         }
 332
 333         bt_ctf_field_type_get(field_type);
 334         field->name = name_quark;
 335         field->type = field_type;
 336         g_hash_table_insert(field_name_to_index,
 337                 (gpointer) (unsigned long) name_quark,
 338                 (gpointer) (unsigned long) fields->len);
 339         g_ptr_array_add(fields, field);
 340 end:
 341         return ret;
 342 }
 343
 344 static
 345 void bt_ctf_field_type_destroy(struct bt_ctf_ref *ref)
 346 {
 347         struct bt_ctf_field_type *type;
 348         enum ctf_type_id type_id;
 349
 350         if (!ref) {
 351                 return;
 352         }
 353
 354         type = container_of(ref, struct bt_ctf_field_type, ref_count);
 355         type_id = type->declaration->id;
 356         if (type_id <= CTF_TYPE_UNKNOWN ||
 357                 type_id >= NR_CTF_TYPES) {
 358                 return;
 359         }
 360
 361         type_destroy_funcs[type_id](ref);
 362 }
 363
 364 BT_HIDDEN
 365 int bt_ctf_field_type_validate(struct bt_ctf_field_type *type)
 366 {
 367         int ret = 0;
 368
 369         if (!type) {
 370                 ret = -1;
 371                 goto end;
 372         }
 373
 374         switch (type->declaration->id) {
 375         case CTF_TYPE_ENUM:
 376         {
 377                 struct bt_ctf_field_type_enumeration *enumeration =
 378                         container_of(type, struct bt_ctf_field_type_enumeration,
 379                         parent);
 380
 381                 /* Ensure enum has entries */
 382                 ret = enumeration->entries->len ? 0 : -1;
 383                 break;
 384         }
 385         case CTF_TYPE_SEQUENCE:
 386         {
 387                 struct bt_ctf_field_type_sequence *sequence =
 388                         container_of(type, struct bt_ctf_field_type_sequence,
 389                         parent);
 390
 391                 /* length field name should be set at this point */
 392                 ret = sequence->length_field_name->len ? 0 : -1;
 393                 break;
 394         }
 395         case CTF_TYPE_VARIANT:
 396         {
 397                 struct bt_ctf_field_type_variant *variant =
 398                         container_of(type, struct bt_ctf_field_type_variant,
 399                                 parent);
 400
 401                 if (variant->tag_name->len == 0 || !variant->tag) {
 402                         ret = -1;
 403                 }
 404                 break;
 405         }
 406         default:
 407                 break;
 408         }
 409 end:
 410         return ret;
 411 }
 412
 413 struct bt_ctf_field_type *bt_ctf_field_type_integer_create(unsigned int size)
 414 {
 415         struct bt_ctf_field_type_integer *integer =
 416                 g_new0(struct bt_ctf_field_type_integer, 1);
 417
 418         if (!integer || size == 0 || size > 64) {
 419                 return NULL;
 420         }
 421
 422         integer->parent.declaration = &integer->declaration.p;
 423         integer->parent.declaration->id = CTF_TYPE_INTEGER;
 424         integer->declaration.len = size;
 425         integer->declaration.base = BT_CTF_INTEGER_BASE_DECIMAL;
 426         integer->declaration.encoding = CTF_STRING_NONE;
 427         bt_ctf_field_type_init(&integer->parent);
 428         return &integer->parent;
 429 }
 430
 431 int bt_ctf_field_type_integer_get_size(struct bt_ctf_field_type *type)
 432 {
 433         int ret = 0;
 434         struct bt_ctf_field_type_integer *integer;
 435
 436         if (!type || type->declaration->id != CTF_TYPE_INTEGER) {
 437                 ret = -1;
 438                 goto end;
 439         }
 440
 441         integer = container_of(type, struct bt_ctf_field_type_integer, parent);
 442         ret = (int) integer->declaration.len;
 443 end:
 444         return ret;
 445 }
 446
 447 int bt_ctf_field_type_integer_get_signed(struct bt_ctf_field_type *type)
 448 {
 449         int ret = 0;
 450         struct bt_ctf_field_type_integer *integer;
 451
 452         if (!type || type->declaration->id != CTF_TYPE_INTEGER) {
 453                 ret = -1;
 454                 goto end;
 455         }
 456
 457         integer = container_of(type, struct bt_ctf_field_type_integer, parent);
 458         ret = integer->declaration.signedness;
 459 end:
 460         return ret;
 461 }
 462
 463 int bt_ctf_field_type_integer_set_signed(struct bt_ctf_field_type *type,
 464                 int is_signed)
 465 {
 466         int ret = 0;
 467         struct bt_ctf_field_type_integer *integer;
 468
 469         if (!type || type->frozen ||
 470                 type->declaration->id != CTF_TYPE_INTEGER) {
 471                 ret = -1;
 472                 goto end;
 473         }
 474
 475         integer = container_of(type, struct bt_ctf_field_type_integer, parent);
 476         integer->declaration.signedness = !!is_signed;
 477 end:
 478         return ret;
 479 }
 480
 481 enum bt_ctf_integer_base bt_ctf_field_type_integer_get_base(
 482                 struct bt_ctf_field_type *type)
 483 {
 484         enum bt_ctf_integer_base ret = BT_CTF_INTEGER_BASE_UNKNOWN;
 485         struct bt_ctf_field_type_integer *integer;
 486
 487         if (!type || type->declaration->id != CTF_TYPE_INTEGER) {
 488                 goto end;
 489         }
 490
 491         integer = container_of(type, struct bt_ctf_field_type_integer, parent);
 492         ret = integer->declaration.base;
 493 end:
 494         return ret;
 495 }
 496
 497 int bt_ctf_field_type_integer_set_base(struct bt_ctf_field_type *type,
 498                 enum bt_ctf_integer_base base)
 499 {
 500         int ret = 0;
 501
 502         if (!type || type->frozen ||
 503                 type->declaration->id != CTF_TYPE_INTEGER) {
 504                 ret = -1;
 505                 goto end;
 506         }
 507
 508         switch (base) {
 509         case BT_CTF_INTEGER_BASE_BINARY:
 510         case BT_CTF_INTEGER_BASE_OCTAL:
 511         case BT_CTF_INTEGER_BASE_DECIMAL:
 512         case BT_CTF_INTEGER_BASE_HEXADECIMAL:
 513         {
 514                 struct bt_ctf_field_type_integer *integer = container_of(type,
 515                         struct bt_ctf_field_type_integer, parent);
 516                 integer->declaration.base = base;
 517                 break;
 518         }
 519         default:
 520                 ret = -1;
 521         }
 522 end:
 523         return ret;
 524 }
 525
 526 enum ctf_string_encoding bt_ctf_field_type_integer_get_encoding(
 527                 struct bt_ctf_field_type *type)
 528 {
 529         enum ctf_string_encoding ret = CTF_STRING_UNKNOWN;
 530         struct bt_ctf_field_type_integer *integer;
 531
 532         if (!type || type->declaration->id != CTF_TYPE_INTEGER) {
 533                 goto end;
 534         }
 535
 536         integer = container_of(type, struct bt_ctf_field_type_integer, parent);
 537         ret = integer->declaration.encoding;
 538 end:
 539         return ret;
 540 }
 541
 542 int bt_ctf_field_type_integer_set_encoding(struct bt_ctf_field_type *type,
 543                 enum ctf_string_encoding encoding)
 544 {
 545         int ret = 0;
 546         struct bt_ctf_field_type_integer *integer;
 547
 548         if (!type || type->frozen ||
 549                 (type->declaration->id != CTF_TYPE_INTEGER) ||
 550                 (encoding < CTF_STRING_NONE) ||
 551                 (encoding >= CTF_STRING_UNKNOWN)) {
 552                 ret = -1;
 553                 goto end;
 554         }
 555
 556         integer = container_of(type, struct bt_ctf_field_type_integer, parent);
 557         integer->declaration.encoding = encoding;
 558 end:
 559         return ret;
 560 }
 561
 562 struct bt_ctf_clock *bt_ctf_field_type_integer_get_mapped_clock(
 563                 struct bt_ctf_field_type *type)
 564 {
 565         struct bt_ctf_field_type_integer *integer;
 566         struct bt_ctf_clock *clock = NULL;
 567
 568         if (!type) {
 569                 goto end;
 570         }
 571
 572         integer = container_of(type, struct bt_ctf_field_type_integer, parent);
 573         clock = integer->mapped_clock;
 574         if (clock) {
 575                 bt_ctf_clock_get(clock);
 576         }
 577 end:
 578         return clock;
 579 }
 580
 581 int bt_ctf_field_type_integer_set_mapped_clock(
 582                 struct bt_ctf_field_type *type,
 583                 struct bt_ctf_clock *clock)
 584 {
 585         struct bt_ctf_field_type_integer *integer;
 586         int ret = 0;
 587
 588         if (!type || type->frozen) {
 589                 ret = -1;
 590                 goto end;
 591         }
 592
 593         integer = container_of(type, struct bt_ctf_field_type_integer, parent);
 594         if (integer->mapped_clock) {
 595                 bt_ctf_clock_put(integer->mapped_clock);
 596         }
 597
 598         if (clock) {
 599                 bt_ctf_clock_get(clock);
 600         }
 601
 602         integer->mapped_clock = clock;
 603 end:
 604         return ret;
 605 }
 606
 607 struct bt_ctf_field_type *bt_ctf_field_type_enumeration_create(
 608                 struct bt_ctf_field_type *integer_container_type)
 609 {
 610         struct bt_ctf_field_type_enumeration *enumeration = NULL;
 611
 612         if (!integer_container_type) {
 613                 goto error;
 614         }
 615
 616         if (integer_container_type->declaration->id != CTF_TYPE_INTEGER) {
 617                 goto error;
 618         }
 619
 620         enumeration = g_new0(struct bt_ctf_field_type_enumeration, 1);
 621         if (!enumeration) {
 622                 goto error;
 623         }
 624
 625         enumeration->parent.declaration = &enumeration->declaration.p;
 626         enumeration->parent.declaration->id = CTF_TYPE_ENUM;
 627         bt_ctf_field_type_get(integer_container_type);
 628         enumeration->container = integer_container_type;
 629         enumeration->entries = g_ptr_array_new_with_free_func(
 630                 (GDestroyNotify)destroy_enumeration_mapping);
 631         bt_ctf_field_type_init(&enumeration->parent);
 632         return &enumeration->parent;
 633 error:
 634         g_free(enumeration);
 635         return NULL;
 636 }
 637
 638 struct bt_ctf_field_type *bt_ctf_field_type_enumeration_get_container_type(
 639                 struct bt_ctf_field_type *type)
 640 {
 641         struct bt_ctf_field_type *container_type = NULL;
 642         struct bt_ctf_field_type_enumeration *enumeration_type;
 643
 644         if (!type) {
 645                 goto end;
 646         }
 647
 648         if (type->declaration->id != CTF_TYPE_ENUM) {
 649                 goto end;
 650         }
 651
 652         enumeration_type = container_of(type,
 653                 struct bt_ctf_field_type_enumeration, parent);
 654         container_type = enumeration_type->container;
 655         bt_ctf_field_type_get(container_type);
 656 end:
 657         return container_type;
 658 }
 659
 660 int bt_ctf_field_type_enumeration_add_mapping(
 661                 struct bt_ctf_field_type *type, const char *string,
 662                 int64_t range_start, int64_t range_end)
 663 {
 664         int ret = 0;
 665         GQuark mapping_name;
 666         struct enumeration_mapping *mapping;
 667         struct bt_ctf_field_type_enumeration *enumeration;
 668         struct range_overlap_query query;
 669         char *escaped_string;
 670
 671         if (!type || (type->declaration->id != CTF_TYPE_ENUM) ||
 672                 type->frozen ||
 673                 (range_end < range_start)) {
 674                 ret = -1;
 675                 goto end;
 676         }
 677
 678         if (!string || strlen(string) == 0) {
 679                 ret = -1;
 680                 goto end;
 681         }
 682
 683         escaped_string = g_strescape(string, NULL);
 684         if (!escaped_string) {
 685                 ret = -1;
 686                 goto end;
 687         }
 688
 689         mapping_name = g_quark_from_string(escaped_string);
 690         query = (struct range_overlap_query) {
 691                 .range_start._signed = range_start,
 692                 .range_end._signed = range_end,
 693                 .mapping_name = mapping_name,
 694                 .overlaps = 0 };
 695         enumeration = container_of(type, struct bt_ctf_field_type_enumeration,
 696                 parent);
 697
 698         /* Check that the range does not overlap with one already present */
 699         g_ptr_array_foreach(enumeration->entries, check_ranges_overlap, &query);
 700         if (query.overlaps) {
 701                 ret = -1;
 702                 goto error_free;
 703         }
 704
 705         mapping = g_new(struct enumeration_mapping, 1);
 706         if (!mapping) {
 707                 ret = -1;
 708                 goto error_free;
 709         }
 710
 711         *mapping = (struct enumeration_mapping) {
 712                 .range_start._signed = range_start,
 713                 .range_end._signed = range_end, .string = mapping_name};
 714         g_ptr_array_add(enumeration->entries, mapping);
 715         g_ptr_array_sort(enumeration->entries,
 716                 (GCompareFunc)compare_enumeration_mappings_signed);
 717 error_free:
 718         free(escaped_string);
 719 end:
 720         return ret;
 721 }
 722
 723 int bt_ctf_field_type_enumeration_add_mapping_unsigned(
 724                 struct bt_ctf_field_type *type, const char *string,
 725                 uint64_t range_start, uint64_t range_end)
 726 {
 727         int ret = 0;
 728         GQuark mapping_name;
 729         struct enumeration_mapping *mapping;
 730         struct bt_ctf_field_type_enumeration *enumeration;
 731         struct range_overlap_query query;
 732         char *escaped_string;
 733
 734         if (!type || (type->declaration->id != CTF_TYPE_ENUM) ||
 735                 type->frozen ||
 736                 (range_end < range_start)) {
 737                 ret = -1;
 738                 goto end;
 739         }
 740
 741         if (!string || strlen(string) == 0) {
 742                 ret = -1;
 743                 goto end;
 744         }
 745
 746         escaped_string = g_strescape(string, NULL);
 747         if (!escaped_string) {
 748                 ret = -1;
 749                 goto end;
 750         }
 751
 752         mapping_name = g_quark_from_string(escaped_string);
 753         query = (struct range_overlap_query) {
 754                 .range_start._unsigned = range_start,
 755                 .range_end._unsigned = range_end,
 756                 .mapping_name = mapping_name,
 757                 .overlaps = 0 };
 758         enumeration = container_of(type, struct bt_ctf_field_type_enumeration,
 759                 parent);
 760
 761         /* Check that the range does not overlap with one already present */
 762         g_ptr_array_foreach(enumeration->entries, check_ranges_overlap_unsigned,
 763                 &query);
 764         if (query.overlaps) {
 765                 ret = -1;
 766                 goto error_free;
 767         }
 768
 769         mapping = g_new(struct enumeration_mapping, 1);
 770         if (!mapping) {
 771                 ret = -1;
 772                 goto error_free;
 773         }
 774
 775         *mapping = (struct enumeration_mapping) {
 776                 .range_start._unsigned = range_start,
 777                 .range_end._unsigned = range_end, .string = mapping_name};
 778         g_ptr_array_add(enumeration->entries, mapping);
 779         g_ptr_array_sort(enumeration->entries,
 780                 (GCompareFunc)compare_enumeration_mappings_unsigned);
 781 error_free:
 782         free(escaped_string);
 783 end:
 784         return ret;
 785 }
 786
 787 const char *bt_ctf_field_type_enumeration_get_mapping_name_unsigned(
 788                 struct bt_ctf_field_type_enumeration *enumeration_type,
 789                 uint64_t value)
 790 {
 791         const char *name = NULL;
 792         struct range_overlap_query query =
 793                 (struct range_overlap_query) {
 794                 .range_start._unsigned = value,
 795                 .range_end._unsigned = value,
 796                 .overlaps = 0 };
 797
 798         g_ptr_array_foreach(enumeration_type->entries,
 799                 check_ranges_overlap_unsigned,
 800                 &query);
 801         if (!query.overlaps) {
 802                 goto end;
 803         }
 804
 805         name = g_quark_to_string(query.mapping_name);
 806 end:
 807         return name;
 808 }
 809
 810 const char *bt_ctf_field_type_enumeration_get_mapping_name_signed(
 811                 struct bt_ctf_field_type_enumeration *enumeration_type,
 812                 int64_t value)
 813 {
 814         const char *name = NULL;
 815         struct range_overlap_query query =
 816                 (struct range_overlap_query) {
 817                 .range_start._signed = value,
 818                 .range_end._signed = value,
 819                 .overlaps = 0 };
 820
 821         g_ptr_array_foreach(enumeration_type->entries, check_ranges_overlap,
 822                 &query);
 823         if (!query.overlaps) {
 824                 goto end;
 825         }
 826
 827         name = g_quark_to_string(query.mapping_name);
 828 end:
 829         return name;
 830 }
 831
 832 int bt_ctf_field_type_enumeration_get_mapping_count(
 833                 struct bt_ctf_field_type *type)
 834 {
 835         int ret = 0;
 836         struct bt_ctf_field_type_enumeration *enumeration;
 837
 838         if (!type || (type->declaration->id != CTF_TYPE_ENUM)) {
 839                 ret = -1;
 840                 goto end;
 841         }
 842
 843         enumeration = container_of(type, struct bt_ctf_field_type_enumeration,
 844                 parent);
 845         ret = (int) enumeration->entries->len;
 846 end:
 847         return ret;
 848 }
 849
 850 static inline
 851 struct enumeration_mapping *get_enumeration_mapping(
 852         struct bt_ctf_field_type *type, int index)
 853 {
 854         struct enumeration_mapping *mapping = NULL;
 855         struct bt_ctf_field_type_enumeration *enumeration;
 856
 857         enumeration = container_of(type, struct bt_ctf_field_type_enumeration,
 858                 parent);
 859         if (index >= enumeration->entries->len) {
 860                 goto end;
 861         }
 862
 863         mapping = g_ptr_array_index(enumeration->entries, index);
 864 end:
 865         return mapping;
 866 }
 867
 868 int bt_ctf_field_type_enumeration_get_mapping(
 869                 struct bt_ctf_field_type *type, int index,
 870                 const char **string, int64_t *range_start, int64_t *range_end)
 871 {
 872         struct enumeration_mapping *mapping;
 873         int ret = 0;
 874
 875         if (!type || index < 0 || !string || !range_start || !range_end ||
 876                 (type->declaration->id != CTF_TYPE_ENUM)) {
 877                 ret = -1;
 878                 goto end;
 879         }
 880
 881         mapping = get_enumeration_mapping(type, index);
 882         if (!mapping) {
 883                 ret = -1;
 884                 goto end;
 885         }
 886
 887         *string = g_quark_to_string(mapping->string);
 888         *range_start = mapping->range_start._signed;
 889         *range_end = mapping->range_end._signed;
 890 end:
 891         return ret;
 892 }
 893
 894 int bt_ctf_field_type_enumeration_get_mapping_unsigned(
 895                 struct bt_ctf_field_type *type, int index,
 896                 const char **string, uint64_t *range_start, uint64_t *range_end)
 897 {
 898         struct enumeration_mapping *mapping;
 899         int ret = 0;
 900
 901         if (!type || index < 0 || !string || !range_start || !range_end ||
 902                 (type->declaration->id != CTF_TYPE_ENUM)) {
 903                 ret = -1;
 904                 goto end;
 905         }
 906
 907         mapping = get_enumeration_mapping(type, index);
 908         if (!mapping) {
 909                 ret = -1;
 910                 goto end;
 911         }
 912
 913         *string = g_quark_to_string(mapping->string);
 914         *range_start = mapping->range_start._unsigned;
 915         *range_end = mapping->range_end._unsigned;
 916 end:
 917         return ret;
 918 }
 919
 920 int bt_ctf_field_type_enumeration_get_mapping_index_by_name(
 921                 struct bt_ctf_field_type *type, const char *name)
 922 {
 923         GQuark name_quark;
 924         struct bt_ctf_field_type_enumeration *enumeration;
 925         int i, ret = 0;
 926
 927         if (!type || !name ||
 928                 (type->declaration->id != CTF_TYPE_ENUM)) {
 929                 ret = -1;
 930                 goto end;
 931         }
 932
 933         name_quark = g_quark_try_string(name);
 934         if (!name_quark) {
 935                 ret = -1;
 936                 goto end;
 937         }
 938
 939         enumeration = container_of(type,
 940                 struct bt_ctf_field_type_enumeration, parent);
 941         for (i = 0; i < enumeration->entries->len; i++) {
 942                 struct enumeration_mapping *mapping =
 943                         get_enumeration_mapping(type, i);
 944
 945                 if (mapping->string == name_quark) {
 946                         ret = i;
 947                         goto end;
 948                 }
 949         }
 950
 951         ret = -1;
 952 end:
 953         return ret;
 954 }
 955
 956 int bt_ctf_field_type_enumeration_get_mapping_index_by_value(
 957                 struct bt_ctf_field_type *type, int64_t value)
 958 {
 959         struct bt_ctf_field_type_enumeration *enumeration;
 960         int i, ret = 0;
 961
 962         if (!type || (type->declaration->id != CTF_TYPE_ENUM)) {
 963                 ret = -1;
 964                 goto end;
 965         }
 966
 967         enumeration = container_of(type,
 968                 struct bt_ctf_field_type_enumeration, parent);
 969         for (i = 0; i < enumeration->entries->len; i++) {
 970                 struct enumeration_mapping *mapping =
 971                         get_enumeration_mapping(type, i);
 972
 973                 if (value >= mapping->range_start._signed &&
 974                         value <= mapping->range_end._signed) {
 975                         ret = i;
 976                         goto end;
 977                 }
 978         }
 979
 980         ret = -1;
 981 end:
 982         return ret;
 983 }
 984
 985 int bt_ctf_field_type_enumeration_get_mapping_index_by_unsigned_value(
 986                 struct bt_ctf_field_type *type, uint64_t value)
 987 {
 988         struct bt_ctf_field_type_enumeration *enumeration;
 989         int i, ret = 0;
 990
 991         if (!type || (type->declaration->id != CTF_TYPE_ENUM)) {
 992                 ret = -1;
 993                 goto end;
 994         }
 995
 996         enumeration = container_of(type,
 997                 struct bt_ctf_field_type_enumeration, parent);
 998         for (i = 0; i < enumeration->entries->len; i++) {
 999                 struct enumeration_mapping *mapping =
1000                         get_enumeration_mapping(type, i);
1001
1002                 if (value >= mapping->range_start._unsigned &&
1003                         value <= mapping->range_end._unsigned) {
1004                         ret = i;
1005                         goto end;
1006                 }
1007         }
1008
1009         ret = -1;
1010 end:
1011         return ret;
1012 }
1013
1014 struct bt_ctf_field_type *bt_ctf_field_type_floating_point_create(void)
1015 {
1016         struct bt_ctf_field_type_floating_point *floating_point =
1017                 g_new0(struct bt_ctf_field_type_floating_point, 1);
1018
1019         if (!floating_point) {
1020                 goto end;
1021         }
1022
1023         floating_point->declaration.sign = &floating_point->sign;
1024         floating_point->declaration.mantissa = &floating_point->mantissa;
1025         floating_point->declaration.exp = &floating_point->exp;
1026         floating_point->sign.len = 1;
1027         floating_point->parent.declaration = &floating_point->declaration.p;
1028         floating_point->parent.declaration->id = CTF_TYPE_FLOAT;
1029         floating_point->declaration.exp->len =
1030                 sizeof(float) * CHAR_BIT - FLT_MANT_DIG;
1031         floating_point->declaration.mantissa->len = FLT_MANT_DIG - 1;
1032         floating_point->sign.p.alignment = 1;
1033         floating_point->mantissa.p.alignment = 1;
1034         floating_point->exp.p.alignment = 1;
1035
1036         bt_ctf_field_type_init(&floating_point->parent);
1037 end:
1038         return floating_point ? &floating_point->parent : NULL;
1039 }
1040
1041 int bt_ctf_field_type_floating_point_get_exponent_digits(
1042                 struct bt_ctf_field_type *type)
1043 {
1044         int ret = 0;
1045         struct bt_ctf_field_type_floating_point *floating_point;
1046
1047         if (!type || (type->declaration->id != CTF_TYPE_FLOAT)) {
1048                 ret = -1;
1049                 goto end;
1050         }
1051
1052         floating_point = container_of(type,
1053                 struct bt_ctf_field_type_floating_point, parent);
1054         ret = (int) floating_point->declaration.exp->len;
1055 end:
1056         return ret;
1057 }
1058
1059 int bt_ctf_field_type_floating_point_set_exponent_digits(
1060                 struct bt_ctf_field_type *type,
1061                 unsigned int exponent_digits)
1062 {
1063         int ret = 0;
1064         struct bt_ctf_field_type_floating_point *floating_point;
1065
1066         if (!type || type->frozen ||
1067                 (type->declaration->id != CTF_TYPE_FLOAT)) {
1068                 ret = -1;
1069                 goto end;
1070         }
1071
1072         floating_point = container_of(type,
1073                 struct bt_ctf_field_type_floating_point, parent);
1074         if ((exponent_digits != sizeof(float) * CHAR_BIT - FLT_MANT_DIG) &&
1075                 (exponent_digits != sizeof(double) * CHAR_BIT - DBL_MANT_DIG) &&
1076                 (exponent_digits !=
1077                         sizeof(long double) * CHAR_BIT - LDBL_MANT_DIG)) {
1078                 ret = -1;
1079                 goto end;
1080         }
1081
1082         floating_point->declaration.exp->len = exponent_digits;
1083 end:
1084         return ret;
1085 }
1086
1087 int bt_ctf_field_type_floating_point_get_mantissa_digits(
1088                 struct bt_ctf_field_type *type)
1089 {
1090         int ret = 0;
1091         struct bt_ctf_field_type_floating_point *floating_point;
1092
1093         if (!type || (type->declaration->id != CTF_TYPE_FLOAT)) {
1094                 ret = -1;
1095                 goto end;
1096         }
1097
1098         floating_point = container_of(type,
1099                 struct bt_ctf_field_type_floating_point, parent);
1100         ret = (int) floating_point->mantissa.len + 1;
1101 end:
1102         return ret;
1103 }
1104
1105 int bt_ctf_field_type_floating_point_set_mantissa_digits(
1106                 struct bt_ctf_field_type *type,
1107                 unsigned int mantissa_digits)
1108 {
1109         int ret = 0;
1110         struct bt_ctf_field_type_floating_point *floating_point;
1111
1112         if (!type || type->frozen ||
1113                 (type->declaration->id != CTF_TYPE_FLOAT)) {
1114                 ret = -1;
1115                 goto end;
1116         }
1117
1118         floating_point = container_of(type,
1119                 struct bt_ctf_field_type_floating_point, parent);
1120
1121         if ((mantissa_digits != FLT_MANT_DIG) &&
1122                 (mantissa_digits != DBL_MANT_DIG) &&
1123                 (mantissa_digits != LDBL_MANT_DIG)) {
1124                 ret = -1;
1125                 goto end;
1126         }
1127
1128         floating_point->declaration.mantissa->len = mantissa_digits - 1;
1129 end:
1130         return ret;
1131 }
1132
1133 struct bt_ctf_field_type *bt_ctf_field_type_structure_create(void)
1134 {
1135         struct bt_ctf_field_type_structure *structure =
1136                 g_new0(struct bt_ctf_field_type_structure, 1);
1137
1138         if (!structure) {
1139                 goto error;
1140         }
1141
1142         structure->parent.declaration = &structure->declaration.p;
1143         structure->parent.declaration->id = CTF_TYPE_STRUCT;
1144         structure->fields = g_ptr_array_new_with_free_func(
1145                 (GDestroyNotify)destroy_structure_field);
1146         structure->field_name_to_index = g_hash_table_new(NULL, NULL);
1147         bt_ctf_field_type_init(&structure->parent);
1148         return &structure->parent;
1149 error:
1150         return NULL;
1151 }
1152
1153 int bt_ctf_field_type_structure_add_field(struct bt_ctf_field_type *type,
1154                 struct bt_ctf_field_type *field_type,
1155                 const char *field_name)
1156 {
1157         int ret = 0;
1158         struct bt_ctf_field_type_structure *structure;
1159
1160         if (!type || !field_type || type->frozen ||
1161                 bt_ctf_validate_identifier(field_name) ||
1162                 (type->declaration->id != CTF_TYPE_STRUCT) ||
1163                 bt_ctf_field_type_validate(field_type)) {
1164                 ret = -1;
1165                 goto end;
1166         }
1167
1168         structure = container_of(type,
1169                 struct bt_ctf_field_type_structure, parent);
1170         if (add_structure_field(structure->fields,
1171                 structure->field_name_to_index, field_type, field_name)) {
1172                 ret = -1;
1173                 goto end;
1174         }
1175
1176         if (type->declaration->alignment < field_type->declaration->alignment) {
1177                 type->declaration->alignment =
1178                         field_type->declaration->alignment;
1179         }
1180 end:
1181         return ret;
1182 }
1183
1184 int bt_ctf_field_type_structure_get_field_count(
1185                 struct bt_ctf_field_type *type)
1186 {
1187         int ret = 0;
1188         struct bt_ctf_field_type_structure *structure;
1189
1190         if (!type || (type->declaration->id != CTF_TYPE_STRUCT)) {
1191                 ret = -1;
1192                 goto end;
1193         }
1194
1195         structure = container_of(type, struct bt_ctf_field_type_structure,
1196                 parent);
1197         ret = (int) structure->fields->len;
1198 end:
1199         return ret;
1200 }
1201
1202 int bt_ctf_field_type_structure_get_field(struct bt_ctf_field_type *type,
1203                 const char **field_name, struct bt_ctf_field_type **field_type,
1204                 int index)
1205 {
1206         struct bt_ctf_field_type_structure *structure;
1207         struct structure_field *field;
1208         int ret = 0;
1209
1210         if (!type || index < 0 || !field_name || !field_type ||
1211                 (type->declaration->id != CTF_TYPE_STRUCT)) {
1212                 ret = -1;
1213                 goto end;
1214         }
1215
1216         structure = container_of(type, struct bt_ctf_field_type_structure,
1217                 parent);
1218         if (index >= structure->fields->len) {
1219                 ret = -1;
1220                 goto end;
1221         }
1222
1223         field = g_ptr_array_index(structure->fields, index);
1224         *field_type = field->type;
1225         bt_ctf_field_type_get(field->type);
1226         *field_name = g_quark_to_string(field->name);
1227 end:
1228         return ret;
1229 }
1230
1231 struct bt_ctf_field_type *bt_ctf_field_type_structure_get_field_type_by_name(
1232                 struct bt_ctf_field_type *type,
1233                 const char *name)
1234 {
1235         size_t index;
1236         GQuark name_quark;
1237         struct structure_field *field;
1238         struct bt_ctf_field_type_structure *structure;
1239         struct bt_ctf_field_type *field_type = NULL;
1240
1241         if (!type || !name) {
1242                 goto end;
1243         }
1244
1245         name_quark = g_quark_try_string(name);
1246         if (!name_quark) {
1247                 goto end;
1248         }
1249
1250         structure = container_of(type, struct bt_ctf_field_type_structure,
1251                 parent);
1252         if (!g_hash_table_lookup_extended(structure->field_name_to_index,
1253                 GUINT_TO_POINTER(name_quark), NULL, (gpointer *)&index)) {
1254                 goto end;
1255         }
1256
1257         field = structure->fields->pdata[index];
1258         field_type = field->type;
1259         bt_ctf_field_type_get(field_type);
1260 end:
1261         return field_type;
1262 }
1263
1264 struct bt_ctf_field_type *bt_ctf_field_type_variant_create(
1265         struct bt_ctf_field_type *enum_tag, const char *tag_name)
1266 {
1267         struct bt_ctf_field_type_variant *variant = NULL;
1268
1269         if (tag_name && bt_ctf_validate_identifier(tag_name)) {
1270                 goto error;
1271         }
1272
1273         variant = g_new0(struct bt_ctf_field_type_variant, 1);
1274         if (!variant) {
1275                 goto error;
1276         }
1277
1278         variant->parent.declaration = &variant->declaration.p;
1279         variant->parent.declaration->id = CTF_TYPE_VARIANT;
1280         variant->tag_name = g_string_new(tag_name);
1281         variant->field_name_to_index = g_hash_table_new(NULL, NULL);
1282         variant->fields = g_ptr_array_new_with_free_func(
1283                 (GDestroyNotify)destroy_structure_field);
1284         if (enum_tag) {
1285                 bt_ctf_field_type_get(enum_tag);
1286                 variant->tag = container_of(enum_tag,
1287                         struct bt_ctf_field_type_enumeration, parent);
1288         }
1289
1290         bt_ctf_field_type_init(&variant->parent);
1291         return &variant->parent;
1292 error:
1293         return NULL;
1294 }
1295
1296 struct bt_ctf_field_type *bt_ctf_field_type_variant_get_tag_type(
1297                 struct bt_ctf_field_type *type)
1298 {
1299         struct bt_ctf_field_type_variant *variant;
1300         struct bt_ctf_field_type *tag_type = NULL;
1301
1302         if (!type || (type->declaration->id != CTF_TYPE_VARIANT)) {
1303                 goto end;
1304         }
1305
1306         variant = container_of(type, struct bt_ctf_field_type_variant, parent);
1307         if (!variant->tag) {
1308                 goto end;
1309         }
1310
1311         tag_type = &variant->tag->parent;
1312         bt_ctf_field_type_get(tag_type);
1313 end:
1314         return tag_type;
1315 }
1316
1317 const char *bt_ctf_field_type_variant_get_tag_name(
1318                 struct bt_ctf_field_type *type)
1319 {
1320         struct bt_ctf_field_type_variant *variant;
1321         const char *tag_name = NULL;
1322
1323         if (!type || (type->declaration->id != CTF_TYPE_VARIANT)) {
1324                 goto end;
1325         }
1326
1327         variant = container_of(type, struct bt_ctf_field_type_variant, parent);
1328         if (variant->tag_name->len == 0) {
1329                 goto end;
1330         }
1331
1332         tag_name = variant->tag_name->str;
1333 end:
1334         return tag_name;
1335 }
1336
1337 int bt_ctf_field_type_variant_set_tag_name(
1338                 struct bt_ctf_field_type *type, const char *name)
1339 {
1340         int ret = 0;
1341         struct bt_ctf_field_type_variant *variant;
1342
1343         if (!type || type->frozen ||
1344                 (type->declaration->id != CTF_TYPE_VARIANT) ||
1345                 bt_ctf_validate_identifier(name)) {
1346                 ret = -1;
1347                 goto end;
1348         }
1349
1350         variant = container_of(type, struct bt_ctf_field_type_variant, parent);
1351         g_string_assign(variant->tag_name, name);
1352 end:
1353         return ret;
1354 }
1355
1356 int bt_ctf_field_type_variant_add_field(struct bt_ctf_field_type *type,
1357                 struct bt_ctf_field_type *field_type,
1358                 const char *field_name)
1359 {
1360         size_t i;
1361         int ret = 0;
1362         struct bt_ctf_field_type_variant *variant;
1363         GQuark field_name_quark = g_quark_from_string(field_name);
1364
1365         if (!type || !field_type || type->frozen ||
1366                 bt_ctf_validate_identifier(field_name) ||
1367                 (type->declaration->id != CTF_TYPE_VARIANT) ||
1368                 bt_ctf_field_type_validate(field_type)) {
1369                 ret = -1;
1370                 goto end;
1371         }
1372
1373         variant = container_of(type, struct bt_ctf_field_type_variant, parent);
1374
1375         /* The user has explicitly provided a tag; validate against it. */
1376         if (variant->tag) {
1377                 int name_found = 0;
1378
1379                 /* Make sure this name is present in the enum tag */
1380                 for (i = 0; i < variant->tag->entries->len; i++) {
1381                         struct enumeration_mapping *mapping =
1382                                 g_ptr_array_index(variant->tag->entries, i);
1383
1384                         if (mapping->string == field_name_quark) {
1385                                 name_found = 1;
1386                                 break;
1387                         }
1388                 }
1389
1390                 if (!name_found) {
1391                         /* Validation failed */
1392                         ret = -1;
1393                         goto end;
1394                 }
1395         }
1396
1397         if (add_structure_field(variant->fields, variant->field_name_to_index,
1398                 field_type, field_name)) {
1399                 ret = -1;
1400                 goto end;
1401         }
1402 end:
1403         return ret;
1404 }
1405
1406 struct bt_ctf_field_type *bt_ctf_field_type_variant_get_field_type_by_name(
1407                 struct bt_ctf_field_type *type,
1408                 const char *field_name)
1409 {
1410         size_t index;
1411         GQuark name_quark;
1412         struct structure_field *field;
1413         struct bt_ctf_field_type_variant *variant;
1414         struct bt_ctf_field_type *field_type = NULL;
1415
1416         if (!type || !field_name) {
1417                 goto end;
1418         }
1419
1420         name_quark = g_quark_try_string(field_name);
1421         if (!name_quark) {
1422                 goto end;
1423         }
1424
1425         variant = container_of(type, struct bt_ctf_field_type_variant, parent);
1426         if (!g_hash_table_lookup_extended(variant->field_name_to_index,
1427                 GUINT_TO_POINTER(name_quark), NULL, (gpointer *)&index)) {
1428                 goto end;
1429         }
1430
1431         field = g_ptr_array_index(variant->fields, index);
1432         field_type = field->type;
1433         bt_ctf_field_type_get(field_type);
1434 end:
1435         return field_type;
1436 }
1437
1438 struct bt_ctf_field_type *bt_ctf_field_type_variant_get_field_type_from_tag(
1439                 struct bt_ctf_field_type *type,
1440                 struct bt_ctf_field *tag)
1441 {
1442         const char *enum_value;
1443         struct bt_ctf_field_type *field_type = NULL;
1444
1445         if (!type || !tag || type->declaration->id != CTF_TYPE_VARIANT) {
1446                 goto end;
1447         }
1448
1449         enum_value = bt_ctf_field_enumeration_get_mapping_name(tag);
1450         if (!enum_value) {
1451                 goto end;
1452         }
1453
1454         /* Already increments field_type's reference count */
1455         field_type = bt_ctf_field_type_variant_get_field_type_by_name(
1456                 type, enum_value);
1457 end:
1458         return field_type;
1459 }
1460
1461 int bt_ctf_field_type_variant_get_field_count(struct bt_ctf_field_type *type)
1462 {
1463         int ret = 0;
1464         struct bt_ctf_field_type_variant *variant;
1465
1466         if (!type || (type->declaration->id != CTF_TYPE_VARIANT)) {
1467                 ret = -1;
1468                 goto end;
1469         }
1470
1471         variant = container_of(type, struct bt_ctf_field_type_variant,
1472                 parent);
1473         ret = (int) variant->fields->len;
1474 end:
1475         return ret;
1476
1477 }
1478
1479 int bt_ctf_field_type_variant_get_field(struct bt_ctf_field_type *type,
1480                 const char **field_name, struct bt_ctf_field_type **field_type,
1481                 int index)
1482 {
1483         struct bt_ctf_field_type_variant *variant;
1484         struct structure_field *field;
1485         int ret = 0;
1486
1487         if (!type || index < 0 || !field_name || !field_type ||
1488                 (type->declaration->id != CTF_TYPE_VARIANT)) {
1489                 ret = -1;
1490                 goto end;
1491         }
1492
1493         variant = container_of(type, struct bt_ctf_field_type_variant,
1494                 parent);
1495         if (index >= variant->fields->len) {
1496                 ret = -1;
1497                 goto end;
1498         }
1499
1500         field = g_ptr_array_index(variant->fields, index);
1501         *field_type = field->type;
1502         bt_ctf_field_type_get(field->type);
1503         *field_name = g_quark_to_string(field->name);
1504 end:
1505         return ret;
1506 }
1507
1508 struct bt_ctf_field_type *bt_ctf_field_type_array_create(
1509                 struct bt_ctf_field_type *element_type,
1510                 unsigned int length)
1511 {
1512         struct bt_ctf_field_type_array *array = NULL;
1513
1514         if (!element_type || length == 0 ||
1515                 bt_ctf_field_type_validate(element_type)) {
1516                 goto error;
1517         }
1518
1519         array = g_new0(struct bt_ctf_field_type_array, 1);
1520         if (!array) {
1521                 goto error;
1522         }
1523
1524         array->parent.declaration = &array->declaration.p;
1525         array->parent.declaration->id = CTF_TYPE_ARRAY;
1526
1527         bt_ctf_field_type_get(element_type);
1528         array->element_type = element_type;
1529         array->length = length;
1530         bt_ctf_field_type_init(&array->parent);
1531         array->parent.declaration->alignment =
1532                 element_type->declaration->alignment;
1533         return &array->parent;
1534 error:
1535         return NULL;
1536 }
1537
1538 struct bt_ctf_field_type *bt_ctf_field_type_array_get_element_type(
1539                 struct bt_ctf_field_type *type)
1540 {
1541         struct bt_ctf_field_type *ret = NULL;
1542         struct bt_ctf_field_type_array *array;
1543
1544         if (!type || (type->declaration->id != CTF_TYPE_ARRAY)) {
1545                 goto end;
1546         }
1547
1548         array = container_of(type, struct bt_ctf_field_type_array, parent);
1549         ret = array->element_type;
1550         bt_ctf_field_type_get(ret);
1551 end:
1552         return ret;
1553 }
1554
1555 int64_t bt_ctf_field_type_array_get_length(struct bt_ctf_field_type *type)
1556 {
1557         int64_t ret;
1558         struct bt_ctf_field_type_array *array;
1559
1560         if (!type || (type->declaration->id != CTF_TYPE_ARRAY)) {
1561                 ret = -1;
1562                 goto end;
1563         }
1564
1565         array = container_of(type, struct bt_ctf_field_type_array, parent);
1566         ret = (int64_t) array->length;
1567 end:
1568         return ret;
1569 }
1570
1571 struct bt_ctf_field_type *bt_ctf_field_type_sequence_create(
1572                 struct bt_ctf_field_type *element_type,
1573                 const char *length_field_name)
1574 {
1575         struct bt_ctf_field_type_sequence *sequence = NULL;
1576
1577         if (!element_type || bt_ctf_validate_identifier(length_field_name) ||
1578                 bt_ctf_field_type_validate(element_type)) {
1579                 goto error;
1580         }
1581
1582         sequence = g_new0(struct bt_ctf_field_type_sequence, 1);
1583         if (!sequence) {
1584                 goto error;
1585         }
1586
1587         sequence->parent.declaration = &sequence->declaration.p;
1588         sequence->parent.declaration->id = CTF_TYPE_SEQUENCE;
1589         bt_ctf_field_type_get(element_type);
1590         sequence->element_type = element_type;
1591         sequence->length_field_name = g_string_new(length_field_name);
1592         bt_ctf_field_type_init(&sequence->parent);
1593         sequence->parent.declaration->alignment =
1594                 element_type->declaration->alignment;
1595         return &sequence->parent;
1596 error:
1597         return NULL;
1598 }
1599
1600 struct bt_ctf_field_type *bt_ctf_field_type_sequence_get_element_type(
1601                 struct bt_ctf_field_type *type)
1602 {
1603         struct bt_ctf_field_type *ret = NULL;
1604         struct bt_ctf_field_type_sequence *sequence;
1605
1606         if (!type || (type->declaration->id != CTF_TYPE_SEQUENCE)) {
1607                 goto end;
1608         }
1609
1610         sequence = container_of(type, struct bt_ctf_field_type_sequence,
1611                 parent);
1612         ret = sequence->element_type;
1613         bt_ctf_field_type_get(ret);
1614 end:
1615         return ret;
1616 }
1617
1618 const char *bt_ctf_field_type_sequence_get_length_field_name(
1619                 struct bt_ctf_field_type *type)
1620 {
1621         const char *ret = NULL;
1622         struct bt_ctf_field_type_sequence *sequence;
1623
1624         if (!type || (type->declaration->id != CTF_TYPE_SEQUENCE)) {
1625                 goto end;
1626         }
1627
1628         sequence = container_of(type, struct bt_ctf_field_type_sequence,
1629                 parent);
1630         ret = sequence->length_field_name->str;
1631 end:
1632         return ret;
1633 }
1634
1635 struct bt_ctf_field_type *bt_ctf_field_type_string_create(void)
1636 {
1637         struct bt_ctf_field_type_string *string =
1638                 g_new0(struct bt_ctf_field_type_string, 1);
1639
1640         if (!string) {
1641                 return NULL;
1642         }
1643
1644         string->parent.declaration = &string->declaration.p;
1645         string->parent.declaration->id = CTF_TYPE_STRING;
1646         bt_ctf_field_type_init(&string->parent);
1647         string->declaration.encoding = CTF_STRING_UTF8;
1648         string->parent.declaration->alignment = CHAR_BIT;
1649         return &string->parent;
1650 }
1651
1652 enum ctf_string_encoding bt_ctf_field_type_string_get_encoding(
1653                 struct bt_ctf_field_type *type)
1654 {
1655         struct bt_ctf_field_type_string *string;
1656         enum ctf_string_encoding ret = CTF_STRING_UNKNOWN;
1657
1658         if (!type || (type->declaration->id != CTF_TYPE_STRING)) {
1659                 goto end;
1660         }
1661
1662         string = container_of(type, struct bt_ctf_field_type_string,
1663                 parent);
1664         ret = string->declaration.encoding;
1665 end:
1666         return ret;
1667 }
1668
1669 int bt_ctf_field_type_string_set_encoding(struct bt_ctf_field_type *type,
1670                 enum ctf_string_encoding encoding)
1671 {
1672         int ret = 0;
1673         struct bt_ctf_field_type_string *string;
1674
1675         if (!type || type->declaration->id != CTF_TYPE_STRING ||
1676                 (encoding != CTF_STRING_UTF8 &&
1677                 encoding != CTF_STRING_ASCII)) {
1678                 ret = -1;
1679                 goto end;
1680         }
1681
1682         string = container_of(type, struct bt_ctf_field_type_string, parent);
1683         string->declaration.encoding = encoding;
1684 end:
1685         return ret;
1686 }
1687
1688 int bt_ctf_field_type_get_alignment(struct bt_ctf_field_type *type)
1689 {
1690         int ret;
1691
1692         if (!type) {
1693                 ret = -1;
1694                 goto end;
1695         }
1696
1697         ret = (int) type->declaration->alignment;
1698 end:
1699         return ret;
1700 }
1701
1702 int bt_ctf_field_type_set_alignment(struct bt_ctf_field_type *type,
1703                 unsigned int alignment)
1704 {
1705         int ret = 0;
1706
1707         /* Alignment must be bit-aligned (1) or byte aligned */
1708         if (!type || type->frozen || (alignment != 1 && (alignment & 0x7))) {
1709                 ret = -1;
1710                 goto end;
1711         }
1712
1713         if (type->declaration->id == CTF_TYPE_STRING &&
1714                 alignment != CHAR_BIT) {
1715                 ret = -1;
1716                 goto end;
1717         }
1718
1719         type->declaration->alignment = alignment;
1720         ret = 0;
1721 end:
1722         return ret;
1723 }
1724
1725 enum bt_ctf_byte_order bt_ctf_field_type_get_byte_order(
1726                 struct bt_ctf_field_type *type)
1727 {
1728         enum bt_ctf_byte_order ret = BT_CTF_BYTE_ORDER_UNKNOWN;
1729         int internal_byte_order = -1;
1730
1731         if (!type) {
1732                 goto end;
1733         }
1734
1735         switch (type->declaration->id) {
1736         case CTF_TYPE_INTEGER:
1737         {
1738                 struct bt_ctf_field_type_integer *integer = container_of(
1739                         type, struct bt_ctf_field_type_integer, parent);
1740                 internal_byte_order = integer->declaration.byte_order;
1741                 break;
1742         }
1743         case CTF_TYPE_FLOAT:
1744         {
1745                 struct bt_ctf_field_type_floating_point *floating_point =
1746                         container_of(type,
1747                                 struct bt_ctf_field_type_floating_point,
1748                                 parent);
1749                 internal_byte_order = floating_point->declaration.byte_order;
1750                 break;
1751         }
1752         default:
1753                 goto end;
1754         }
1755
1756         switch (internal_byte_order) {
1757         case LITTLE_ENDIAN:
1758                 ret = BT_CTF_BYTE_ORDER_LITTLE_ENDIAN;
1759                 break;
1760         case BIG_ENDIAN:
1761                 ret = BT_CTF_BYTE_ORDER_BIG_ENDIAN;
1762                 break;
1763         case 0:
1764                 ret = BT_CTF_BYTE_ORDER_NATIVE;
1765                 break;
1766         default:
1767                 ret = BT_CTF_BYTE_ORDER_UNKNOWN;
1768         }
1769 end:
1770         return ret;
1771 }
1772
1773 int bt_ctf_field_type_set_byte_order(struct bt_ctf_field_type *type,
1774                 enum bt_ctf_byte_order byte_order)
1775 {
1776         int ret = 0;
1777         int internal_byte_order;
1778         enum ctf_type_id type_id;
1779
1780         if (!type || type->frozen) {
1781                 ret = -1;
1782                 goto end;
1783         }
1784
1785         switch (byte_order) {
1786         case BT_CTF_BYTE_ORDER_NATIVE:
1787                 /* Leave unset. Will be initialized by parent. */
1788                 internal_byte_order = 0;
1789                 break;
1790         case BT_CTF_BYTE_ORDER_LITTLE_ENDIAN:
1791                 internal_byte_order = LITTLE_ENDIAN;
1792                 break;
1793         case BT_CTF_BYTE_ORDER_BIG_ENDIAN:
1794         case BT_CTF_BYTE_ORDER_NETWORK:
1795                 internal_byte_order = BIG_ENDIAN;
1796                 break;
1797         default:
1798                 ret = -1;
1799                 goto end;
1800         }
1801
1802         type_id = type->declaration->id;
1803         if (set_byte_order_funcs[type_id]) {
1804                 set_byte_order_funcs[type_id](type, internal_byte_order, 0);
1805         }
1806 end:
1807         return ret;
1808 }
1809
1810 enum ctf_type_id bt_ctf_field_type_get_type_id(
1811                 struct bt_ctf_field_type *type)
1812 {
1813         if (!type) {
1814                 return CTF_TYPE_UNKNOWN;
1815         }
1816
1817         return type->declaration->id;
1818 }
1819
1820 void bt_ctf_field_type_get(struct bt_ctf_field_type *type)
1821 {
1822         if (!type) {
1823                 return;
1824         }
1825
1826         bt_ctf_ref_get(&type->ref_count);
1827 }
1828
1829 void bt_ctf_field_type_put(struct bt_ctf_field_type *type)
1830 {
1831         if (!type) {
1832                 return;
1833         }
1834
1835         bt_ctf_ref_put(&type->ref_count, bt_ctf_field_type_destroy);
1836 }
1837
1838 BT_HIDDEN
1839 void bt_ctf_field_type_freeze(struct bt_ctf_field_type *type)
1840 {
1841         if (!type) {
1842                 return;
1843         }
1844
1845         type->freeze(type);
1846 }
1847
1848 BT_HIDDEN
1849 struct bt_ctf_field_type *bt_ctf_field_type_variant_get_field_type_signed(
1850                 struct bt_ctf_field_type_variant *variant,
1851                 int64_t tag_value)
1852 {
1853         struct bt_ctf_field_type *type = NULL;
1854         GQuark field_name_quark;
1855         gpointer index;
1856         struct structure_field *field_entry;
1857         struct range_overlap_query query = {
1858                 .range_start._signed = tag_value,
1859                 .range_end._signed = tag_value,
1860                 .mapping_name = 0, .overlaps = 0};
1861
1862         g_ptr_array_foreach(variant->tag->entries, check_ranges_overlap,
1863                 &query);
1864         if (!query.overlaps) {
1865                 goto end;
1866         }
1867
1868         field_name_quark = query.mapping_name;
1869         if (!g_hash_table_lookup_extended(variant->field_name_to_index,
1870                 GUINT_TO_POINTER(field_name_quark), NULL, &index)) {
1871                 goto end;
1872         }
1873
1874         field_entry = g_ptr_array_index(variant->fields, (size_t) index);
1875         type = field_entry->type;
1876 end:
1877         return type;
1878 }
1879
1880 BT_HIDDEN
1881 struct bt_ctf_field_type *bt_ctf_field_type_variant_get_field_type_unsigned(
1882                 struct bt_ctf_field_type_variant *variant,
1883                 uint64_t tag_value)
1884 {
1885         struct bt_ctf_field_type *type = NULL;
1886         GQuark field_name_quark;
1887         gpointer index;
1888         struct structure_field *field_entry;
1889         struct range_overlap_query query = {
1890                 .range_start._unsigned = tag_value,
1891                 .range_end._unsigned = tag_value,
1892                 .mapping_name = 0, .overlaps = 0};
1893
1894         g_ptr_array_foreach(variant->tag->entries,
1895                 check_ranges_overlap_unsigned,
1896                 &query);
1897         if (!query.overlaps) {
1898                 goto end;
1899         }
1900
1901         field_name_quark = query.mapping_name;
1902         if (!g_hash_table_lookup_extended(variant->field_name_to_index,
1903                 GUINT_TO_POINTER(field_name_quark), NULL, &index)) {
1904                 goto end;
1905         }
1906
1907         field_entry = g_ptr_array_index(variant->fields, (size_t)index);
1908         type = field_entry->type;
1909 end:
1910         return type;
1911 }
1912
1913 BT_HIDDEN
1914 int bt_ctf_field_type_serialize(struct bt_ctf_field_type *type,
1915                 struct metadata_context *context)
1916 {
1917         int ret;
1918
1919         if (!type || !context) {
1920                 ret = -1;
1921                 goto end;
1922         }
1923
1924         ret = type->serialize(type, context);
1925 end:
1926         return ret;
1927 }
1928
1929 BT_HIDDEN
1930 void bt_ctf_field_type_set_native_byte_order(struct bt_ctf_field_type *type,
1931                 int byte_order)
1932 {
1933         if (!type) {
1934                 return;
1935         }
1936
1937         assert(byte_order == LITTLE_ENDIAN || byte_order == BIG_ENDIAN);
1938         if (set_byte_order_funcs[type->declaration->id]) {
1939                 set_byte_order_funcs[type->declaration->id](type,
1940                         byte_order, 1);
1941         }
1942 }
1943
1944 BT_HIDDEN
1945 struct bt_ctf_field_type *bt_ctf_field_type_copy(struct bt_ctf_field_type *type)
1946 {
1947         struct bt_ctf_field_type *copy = NULL;
1948
1949         if (!type) {
1950                 goto end;
1951         }
1952
1953         copy = type_copy_funcs[type->declaration->id](type);
1954 end:
1955         return copy;
1956 }
1957
1958 static
1959 void bt_ctf_field_type_integer_destroy(struct bt_ctf_ref *ref)
1960 {
1961         struct bt_ctf_field_type_integer *integer;
1962
1963         if (!ref) {
1964                 return;
1965         }
1966
1967         integer = container_of(
1968                 container_of(ref, struct bt_ctf_field_type, ref_count),
1969                 struct bt_ctf_field_type_integer, parent);
1970         if (integer->mapped_clock) {
1971                 bt_ctf_clock_put(integer->mapped_clock);
1972         }
1973         g_free(integer);
1974 }
1975
1976 static
1977 void bt_ctf_field_type_enumeration_destroy(struct bt_ctf_ref *ref)
1978 {
1979         struct bt_ctf_field_type_enumeration *enumeration;
1980
1981         if (!ref) {
1982                 return;
1983         }
1984
1985         enumeration = container_of(
1986                 container_of(ref, struct bt_ctf_field_type, ref_count),
1987                 struct bt_ctf_field_type_enumeration, parent);
1988         g_ptr_array_free(enumeration->entries, TRUE);
1989         bt_ctf_field_type_put(enumeration->container);
1990         g_free(enumeration);
1991 }
1992
1993 static
1994 void bt_ctf_field_type_floating_point_destroy(struct bt_ctf_ref *ref)
1995 {
1996         struct bt_ctf_field_type_floating_point *floating_point;
1997
1998         if (!ref) {
1999                 return;
2000         }
2001
2002         floating_point = container_of(
2003                 container_of(ref, struct bt_ctf_field_type, ref_count),
2004                 struct bt_ctf_field_type_floating_point, parent);
2005         g_free(floating_point);
2006 }
2007
2008 static
2009 void bt_ctf_field_type_structure_destroy(struct bt_ctf_ref *ref)
2010 {
2011         struct bt_ctf_field_type_structure *structure;
2012
2013         if (!ref) {
2014                 return;
2015         }
2016
2017         structure = container_of(
2018                 container_of(ref, struct bt_ctf_field_type, ref_count),
2019                 struct bt_ctf_field_type_structure, parent);
2020         g_ptr_array_free(structure->fields, TRUE);
2021         g_hash_table_destroy(structure->field_name_to_index);
2022         g_free(structure);
2023 }
2024
2025 static
2026 void bt_ctf_field_type_variant_destroy(struct bt_ctf_ref *ref)
2027 {
2028         struct bt_ctf_field_type_variant *variant;
2029
2030         if (!ref) {
2031                 return;
2032         }
2033
2034         variant = container_of(
2035                 container_of(ref, struct bt_ctf_field_type, ref_count),
2036                 struct bt_ctf_field_type_variant, parent);
2037         g_ptr_array_free(variant->fields, TRUE);
2038         g_hash_table_destroy(variant->field_name_to_index);
2039         g_string_free(variant->tag_name, TRUE);
2040         bt_ctf_field_type_put(&variant->tag->parent);
2041         g_free(variant);
2042 }
2043
2044 static
2045 void bt_ctf_field_type_array_destroy(struct bt_ctf_ref *ref)
2046 {
2047         struct bt_ctf_field_type_array *array;
2048
2049         if (!ref) {
2050                 return;
2051         }
2052
2053         array = container_of(
2054                 container_of(ref, struct bt_ctf_field_type, ref_count),
2055                 struct bt_ctf_field_type_array, parent);
2056         bt_ctf_field_type_put(array->element_type);
2057         g_free(array);
2058 }
2059
2060 static
2061 void bt_ctf_field_type_sequence_destroy(struct bt_ctf_ref *ref)
2062 {
2063         struct bt_ctf_field_type_sequence *sequence;
2064
2065         if (!ref) {
2066                 return;
2067         }
2068
2069         sequence = container_of(
2070                 container_of(ref, struct bt_ctf_field_type, ref_count),
2071                 struct bt_ctf_field_type_sequence, parent);
2072         bt_ctf_field_type_put(sequence->element_type);
2073         g_string_free(sequence->length_field_name, TRUE);
2074         g_free(sequence);
2075 }
2076
2077 static
2078 void bt_ctf_field_type_string_destroy(struct bt_ctf_ref *ref)
2079 {
2080         struct bt_ctf_field_type_string *string;
2081
2082         if (!ref) {
2083                 return;
2084         }
2085
2086         string = container_of(
2087                 container_of(ref, struct bt_ctf_field_type, ref_count),
2088                 struct bt_ctf_field_type_string, parent);
2089         g_free(string);
2090 }
2091
2092 static
2093 void generic_field_type_freeze(struct bt_ctf_field_type *type)
2094 {
2095         type->frozen = 1;
2096 }
2097
2098 static
2099 void bt_ctf_field_type_enumeration_freeze(struct bt_ctf_field_type *type)
2100 {
2101         struct bt_ctf_field_type_enumeration *enumeration_type = container_of(
2102                 type, struct bt_ctf_field_type_enumeration, parent);
2103
2104         generic_field_type_freeze(type);
2105         bt_ctf_field_type_freeze(enumeration_type->container);
2106 }
2107
2108 static
2109 void freeze_structure_field(struct structure_field *field)
2110 {
2111         bt_ctf_field_type_freeze(field->type);
2112 }
2113
2114 static
2115 void bt_ctf_field_type_structure_freeze(struct bt_ctf_field_type *type)
2116 {
2117         struct bt_ctf_field_type_structure *structure_type = container_of(
2118                 type, struct bt_ctf_field_type_structure, parent);
2119
2120         generic_field_type_freeze(type);
2121         g_ptr_array_foreach(structure_type->fields, (GFunc)freeze_structure_field,
2122                 NULL);
2123 }
2124
2125 static
2126 void bt_ctf_field_type_variant_freeze(struct bt_ctf_field_type *type)
2127 {
2128         struct bt_ctf_field_type_variant *variant_type = container_of(
2129                 type, struct bt_ctf_field_type_variant, parent);
2130
2131         generic_field_type_freeze(type);
2132         g_ptr_array_foreach(variant_type->fields, (GFunc)freeze_structure_field,
2133                 NULL);
2134 }
2135
2136 static
2137 void bt_ctf_field_type_array_freeze(struct bt_ctf_field_type *type)
2138 {
2139         struct bt_ctf_field_type_array *array_type = container_of(
2140                 type, struct bt_ctf_field_type_array, parent);
2141
2142         generic_field_type_freeze(type);
2143         bt_ctf_field_type_freeze(array_type->element_type);
2144 }
2145
2146 static
2147 void bt_ctf_field_type_sequence_freeze(struct bt_ctf_field_type *type)
2148 {
2149         struct bt_ctf_field_type_sequence *sequence_type = container_of(
2150                 type, struct bt_ctf_field_type_sequence, parent);
2151
2152         generic_field_type_freeze(type);
2153         bt_ctf_field_type_freeze(sequence_type->element_type);
2154 }
2155
2156 static
2157 const char *get_encoding_string(enum ctf_string_encoding encoding)
2158 {
2159         const char *encoding_string;
2160
2161         switch (encoding) {
2162         case CTF_STRING_NONE:
2163                 encoding_string = "none";
2164                 break;
2165         case CTF_STRING_ASCII:
2166                 encoding_string = "ASCII";
2167                 break;
2168         case CTF_STRING_UTF8:
2169                 encoding_string = "UTF8";
2170                 break;
2171         default:
2172                 encoding_string = "unknown";
2173                 break;
2174         }
2175
2176         return encoding_string;
2177 }
2178
2179 static
2180 const char *get_integer_base_string(enum bt_ctf_integer_base base)
2181 {
2182         const char *base_string;
2183
2184         switch (base) {
2185         case BT_CTF_INTEGER_BASE_DECIMAL:
2186                 base_string = "decimal";
2187                 break;
2188         case BT_CTF_INTEGER_BASE_HEXADECIMAL:
2189                 base_string = "hexadecimal";
2190                 break;
2191         case BT_CTF_INTEGER_BASE_OCTAL:
2192                 base_string = "octal";
2193                 break;
2194         case BT_CTF_INTEGER_BASE_BINARY:
2195                 base_string = "binary";
2196                 break;
2197         default:
2198                 base_string = "unknown";
2199                 break;
2200         }
2201
2202         return base_string;
2203 }
2204
2205 static
2206 int bt_ctf_field_type_integer_serialize(struct bt_ctf_field_type *type,
2207                 struct metadata_context *context)
2208 {
2209         struct bt_ctf_field_type_integer *integer = container_of(type,
2210                 struct bt_ctf_field_type_integer, parent);
2211         int ret = 0;
2212
2213         g_string_append_printf(context->string,
2214                 "integer { size = %zu; align = %zu; signed = %s; encoding = %s; base = %s; byte_order = %s",
2215                 integer->declaration.len, type->declaration->alignment,
2216                 (integer->declaration.signedness ? "true" : "false"),
2217                 get_encoding_string(integer->declaration.encoding),
2218                 get_integer_base_string(integer->declaration.base),
2219                 get_byte_order_string(integer->declaration.byte_order));
2220         if (integer->mapped_clock) {
2221                 const char *clock_name = bt_ctf_clock_get_name(
2222                         integer->mapped_clock);
2223
2224                 if (!clock_name) {
2225                         ret = -1;
2226                         goto end;
2227                 }
2228
2229                 g_string_append_printf(context->string,
2230                         "; map = clock.%s.value", clock_name);
2231         }
2232
2233         g_string_append(context->string, "; }");
2234 end:
2235         return ret;
2236 }
2237
2238 static
2239 int bt_ctf_field_type_enumeration_serialize(struct bt_ctf_field_type *type,
2240                 struct metadata_context *context)
2241 {
2242         size_t entry;
2243         int ret;
2244         struct bt_ctf_field_type_enumeration *enumeration = container_of(type,
2245                 struct bt_ctf_field_type_enumeration, parent);
2246         struct bt_ctf_field_type *container_type;
2247         int container_signed;
2248
2249         ret = bt_ctf_field_type_validate(type);
2250         if (ret) {
2251                 goto end;
2252         }
2253
2254         container_type = bt_ctf_field_type_enumeration_get_container_type(type);
2255         if (!container_type) {
2256                 ret = -1;
2257                 goto end;
2258         }
2259
2260         container_signed = bt_ctf_field_type_integer_get_signed(container_type);
2261         if (container_signed < 0) {
2262                 ret = container_signed;
2263                 goto error_put_container_type;
2264         }
2265
2266         g_string_append(context->string, "enum : ");
2267         ret = bt_ctf_field_type_serialize(enumeration->container, context);
2268         if (ret) {
2269                 goto error_put_container_type;
2270         }
2271
2272         g_string_append(context->string, " { ");
2273         for (entry = 0; entry < enumeration->entries->len; entry++) {
2274                 struct enumeration_mapping *mapping =
2275                         enumeration->entries->pdata[entry];
2276
2277                 if (container_signed) {
2278                         if (mapping->range_start._signed ==
2279                                 mapping->range_end._signed) {
2280                                 g_string_append_printf(context->string,
2281                                         "\"%s\" = %" PRId64,
2282                                         g_quark_to_string(mapping->string),
2283                                         mapping->range_start._signed);
2284                         } else {
2285                                 g_string_append_printf(context->string,
2286                                         "\"%s\" = %" PRId64 " ... %" PRId64,
2287                                         g_quark_to_string(mapping->string),
2288                                         mapping->range_start._signed,
2289                                         mapping->range_end._signed);
2290                         }
2291                 } else {
2292                         if (mapping->range_start._unsigned ==
2293                                 mapping->range_end._unsigned) {
2294                                 g_string_append_printf(context->string,
2295                                         "\"%s\" = %" PRIu64,
2296                                         g_quark_to_string(mapping->string),
2297                                         mapping->range_start._unsigned);
2298                         } else {
2299                                 g_string_append_printf(context->string,
2300                                         "\"%s\" = %" PRIu64 " ... %" PRIu64,
2301                                         g_quark_to_string(mapping->string),
2302                                         mapping->range_start._unsigned,
2303                                         mapping->range_end._unsigned);
2304                         }
2305                 }
2306
2307                 g_string_append(context->string,
2308                         ((entry != (enumeration->entries->len - 1)) ?
2309                         ", " : " }"));
2310         }
2311
2312         if (context->field_name->len) {
2313                 g_string_append_printf(context->string, " %s",
2314                         context->field_name->str);
2315                 g_string_assign(context->field_name, "");
2316         }
2317 error_put_container_type:
2318         bt_ctf_field_type_put(container_type);
2319 end:
2320         return ret;
2321 }
2322
2323 static
2324 int bt_ctf_field_type_floating_point_serialize(struct bt_ctf_field_type *type,
2325                 struct metadata_context *context)
2326 {
2327         struct bt_ctf_field_type_floating_point *floating_point = container_of(
2328                 type, struct bt_ctf_field_type_floating_point, parent);
2329
2330         g_string_append_printf(context->string,
2331                 "floating_point { exp_dig = %zu; mant_dig = %zu; byte_order = %s; align = %zu; }",
2332                 floating_point->declaration.exp->len,
2333                 floating_point->declaration.mantissa->len + 1,
2334                 get_byte_order_string(floating_point->declaration.byte_order),
2335                 type->declaration->alignment);
2336         return 0;
2337 }
2338
2339 static
2340 int bt_ctf_field_type_structure_serialize(struct bt_ctf_field_type *type,
2341                 struct metadata_context *context)
2342 {
2343         size_t i;
2344         unsigned int indent;
2345         int ret = 0;
2346         struct bt_ctf_field_type_structure *structure = container_of(type,
2347                 struct bt_ctf_field_type_structure, parent);
2348         GString *structure_field_name = context->field_name;
2349
2350         context->field_name = g_string_new("");
2351
2352         context->current_indentation_level++;
2353         g_string_append(context->string, "struct {\n");
2354
2355         for (i = 0; i < structure->fields->len; i++) {
2356                 struct structure_field *field;
2357
2358                 for (indent = 0; indent < context->current_indentation_level;
2359                         indent++) {
2360                         g_string_append_c(context->string, '\t');
2361                 }
2362
2363                 field = structure->fields->pdata[i];
2364                 g_string_assign(context->field_name,
2365                         g_quark_to_string(field->name));
2366                 ret = bt_ctf_field_type_serialize(field->type, context);
2367                 if (ret) {
2368                         goto end;
2369                 }
2370
2371                 if (context->field_name->len) {
2372                         g_string_append_printf(context->string, " %s",
2373                                 context->field_name->str);
2374                 }
2375                 g_string_append(context->string, ";\n");
2376         }
2377
2378         context->current_indentation_level--;
2379         for (indent = 0; indent < context->current_indentation_level;
2380                 indent++) {
2381                 g_string_append_c(context->string, '\t');
2382         }
2383
2384         g_string_append_printf(context->string, "} align(%zu)",
2385                  type->declaration->alignment);
2386 end:
2387         g_string_free(context->field_name, TRUE);
2388         context->field_name = structure_field_name;
2389         return ret;
2390 }
2391
2392 static
2393 int bt_ctf_field_type_variant_serialize(struct bt_ctf_field_type *type,
2394                 struct metadata_context *context)
2395 {
2396         size_t i;
2397         unsigned int indent;
2398         int ret = 0;
2399         struct bt_ctf_field_type_variant *variant = container_of(
2400                 type, struct bt_ctf_field_type_variant, parent);
2401         GString *variant_field_name = context->field_name;
2402
2403         context->field_name = g_string_new("");
2404         if (variant->tag_name->len > 0) {
2405                 g_string_append_printf(context->string,
2406                         "variant <%s> {\n", variant->tag_name->str);
2407         } else {
2408                 g_string_append(context->string, "variant {\n");
2409         }
2410
2411         context->current_indentation_level++;
2412         for (i = 0; i < variant->fields->len; i++) {
2413                 struct structure_field *field = variant->fields->pdata[i];
2414
2415                 g_string_assign(context->field_name,
2416                         g_quark_to_string(field->name));
2417                 for (indent = 0; indent < context->current_indentation_level;
2418                         indent++) {
2419                         g_string_append_c(context->string, '\t');
2420                 }
2421
2422                 g_string_assign(context->field_name,
2423                         g_quark_to_string(field->name));
2424                 ret = bt_ctf_field_type_serialize(field->type, context);
2425                 if (ret) {
2426                         goto end;
2427                 }
2428
2429                 if (context->field_name->len) {
2430                         g_string_append_printf(context->string, " %s;",
2431                                 context->field_name->str);
2432                 }
2433
2434                 g_string_append_c(context->string, '\n');
2435         }
2436
2437         context->current_indentation_level--;
2438         for (indent = 0; indent < context->current_indentation_level;
2439                 indent++) {
2440                 g_string_append_c(context->string, '\t');
2441         }
2442
2443         g_string_append(context->string, "}");
2444 end:
2445         g_string_free(context->field_name, TRUE);
2446         context->field_name = variant_field_name;
2447         return ret;
2448 }
2449
2450 static
2451 int bt_ctf_field_type_array_serialize(struct bt_ctf_field_type *type,
2452                 struct metadata_context *context)
2453 {
2454         int ret = 0;
2455         struct bt_ctf_field_type_array *array = container_of(type,
2456                 struct bt_ctf_field_type_array, parent);
2457
2458         ret = bt_ctf_field_type_serialize(array->element_type, context);
2459         if (ret) {
2460                 goto end;
2461         }
2462
2463         if (context->field_name->len) {
2464                 g_string_append_printf(context->string, " %s[%u]",
2465                         context->field_name->str, array->length);
2466                 g_string_assign(context->field_name, "");
2467         } else {
2468                 g_string_append_printf(context->string, "[%u]", array->length);
2469         }
2470 end:
2471         return ret;
2472 }
2473
2474 static
2475 int bt_ctf_field_type_sequence_serialize(struct bt_ctf_field_type *type,
2476                 struct metadata_context *context)
2477 {
2478         int ret = 0;
2479         struct bt_ctf_field_type_sequence *sequence = container_of(
2480                 type, struct bt_ctf_field_type_sequence, parent);
2481
2482         ret = bt_ctf_field_type_serialize(sequence->element_type, context);
2483         if (ret) {
2484                 goto end;
2485         }
2486
2487         if (context->field_name->len) {
2488                 g_string_append_printf(context->string, " %s[%s]",
2489                         context->field_name->str,
2490                         sequence->length_field_name->str);
2491                 g_string_assign(context->field_name, "");
2492         } else {
2493                 g_string_append_printf(context->string, "[%s]",
2494                         sequence->length_field_name->str);
2495         }
2496 end:
2497         return ret;
2498 }
2499
2500 static
2501 int bt_ctf_field_type_string_serialize(struct bt_ctf_field_type *type,
2502                 struct metadata_context *context)
2503 {
2504         struct bt_ctf_field_type_string *string = container_of(
2505                 type, struct bt_ctf_field_type_string, parent);
2506
2507         g_string_append_printf(context->string,
2508                 "string { encoding = %s; }",
2509                 get_encoding_string(string->declaration.encoding));
2510         return 0;
2511 }
2512
2513 static
2514 void bt_ctf_field_type_integer_set_byte_order(struct bt_ctf_field_type *type,
2515                 int byte_order, int set_native)
2516 {
2517         struct bt_ctf_field_type_integer *integer_type = container_of(type,
2518                 struct bt_ctf_field_type_integer, parent);
2519
2520         if (set_native) {
2521                 integer_type->declaration.byte_order =
2522                         integer_type->declaration.byte_order == 0 ?
2523                         byte_order : integer_type->declaration.byte_order;
2524         } else {
2525                 integer_type->declaration.byte_order = byte_order;
2526         }
2527 }
2528
2529 static
2530 void bt_ctf_field_type_enumeration_set_byte_order(
2531                 struct bt_ctf_field_type *type, int byte_order, int set_native)
2532 {
2533         struct bt_ctf_field_type_enumeration *enum_type = container_of(type,
2534                 struct bt_ctf_field_type_enumeration, parent);
2535
2536         /* Safe to assume that container is an integer */
2537         bt_ctf_field_type_integer_set_byte_order(enum_type->container,
2538                 byte_order, set_native);
2539 }
2540
2541 static
2542 void bt_ctf_field_type_floating_point_set_byte_order(
2543                 struct bt_ctf_field_type *type, int byte_order, int set_native)
2544 {
2545         struct bt_ctf_field_type_floating_point *floating_point_type =
2546                 container_of(type, struct bt_ctf_field_type_floating_point,
2547                 parent);
2548
2549         if (set_native) {
2550                 floating_point_type->declaration.byte_order =
2551                         floating_point_type->declaration.byte_order == 0 ?
2552                         byte_order :
2553                         floating_point_type->declaration.byte_order;
2554                 floating_point_type->sign.byte_order =
2555                         floating_point_type->sign.byte_order == 0 ?
2556                         byte_order : floating_point_type->sign.byte_order;
2557                 floating_point_type->mantissa.byte_order =
2558                         floating_point_type->mantissa.byte_order == 0 ?
2559                         byte_order : floating_point_type->mantissa.byte_order;
2560                 floating_point_type->exp.byte_order =
2561                         floating_point_type->exp.byte_order == 0 ?
2562                         byte_order : floating_point_type->exp.byte_order;
2563         } else {
2564                 floating_point_type->declaration.byte_order = byte_order;
2565                 floating_point_type->sign.byte_order = byte_order;
2566                 floating_point_type->mantissa.byte_order = byte_order;
2567                 floating_point_type->exp.byte_order = byte_order;
2568         }
2569 }
2570
2571 static
2572 void bt_ctf_field_type_structure_set_byte_order(struct bt_ctf_field_type *type,
2573                 int byte_order, int set_native)
2574 {
2575         int i;
2576         struct bt_ctf_field_type_structure *structure_type =
2577                 container_of(type, struct bt_ctf_field_type_structure,
2578                 parent);
2579
2580         for (i = 0; i < structure_type->fields->len; i++) {
2581                 struct structure_field *field = g_ptr_array_index(
2582                         structure_type->fields, i);
2583                 struct bt_ctf_field_type *field_type = field->type;
2584
2585                 if (set_byte_order_funcs[field_type->declaration->id]) {
2586                         set_byte_order_funcs[field_type->declaration->id](
2587                                 field_type, byte_order, set_native);
2588                 }
2589         }
2590 }
2591
2592 static
2593 void bt_ctf_field_type_variant_set_byte_order(struct bt_ctf_field_type *type,
2594                 int byte_order, int set_native)
2595 {
2596         int i;
2597         struct bt_ctf_field_type_variant *variant_type =
2598                 container_of(type, struct bt_ctf_field_type_variant,
2599                 parent);
2600
2601         for (i = 0; i < variant_type->fields->len; i++) {
2602                 struct structure_field *field = g_ptr_array_index(
2603                         variant_type->fields, i);
2604                 struct bt_ctf_field_type *field_type = field->type;
2605
2606                 if (set_byte_order_funcs[field_type->declaration->id]) {
2607                         set_byte_order_funcs[field_type->declaration->id](
2608                                 field_type, byte_order, set_native);
2609                 }
2610         }
2611 }
2612
2613 static
2614 void bt_ctf_field_type_array_set_byte_order(struct bt_ctf_field_type *type,
2615                 int byte_order, int set_native)
2616 {
2617         struct bt_ctf_field_type_array *array_type =
2618                 container_of(type, struct bt_ctf_field_type_array,
2619                 parent);
2620
2621         if (set_byte_order_funcs[array_type->element_type->declaration->id]) {
2622                 set_byte_order_funcs[array_type->element_type->declaration->id](
2623                         array_type->element_type, byte_order, set_native);
2624         }
2625 }
2626
2627 static
2628 void bt_ctf_field_type_sequence_set_byte_order(struct bt_ctf_field_type *type,
2629                 int byte_order, int set_native)
2630 {
2631         struct bt_ctf_field_type_sequence *sequence_type =
2632                 container_of(type, struct bt_ctf_field_type_sequence,
2633                 parent);
2634
2635         if (set_byte_order_funcs[
2636                 sequence_type->element_type->declaration->id]) {
2637                 set_byte_order_funcs[
2638                         sequence_type->element_type->declaration->id](
2639                         sequence_type->element_type, byte_order, set_native);
2640         }
2641 }
2642
2643 static
2644 struct bt_ctf_field_type *bt_ctf_field_type_integer_copy(
2645                 struct bt_ctf_field_type *type)
2646 {
2647         struct bt_ctf_field_type *copy;
2648         struct bt_ctf_field_type_integer *integer, *copy_integer;
2649
2650         integer = container_of(type, struct bt_ctf_field_type_integer, parent);
2651         copy = bt_ctf_field_type_integer_create(integer->declaration.len);
2652         if (!copy) {
2653                 goto end;
2654         }
2655
2656         copy_integer = container_of(copy, struct bt_ctf_field_type_integer,
2657                 parent);
2658         copy_integer->declaration = integer->declaration;
2659         if (integer->mapped_clock) {
2660                 bt_ctf_clock_get(integer->mapped_clock);
2661                 copy_integer->mapped_clock = integer->mapped_clock;
2662         }
2663 end:
2664         return copy;
2665 }
2666
2667 static
2668 struct bt_ctf_field_type *bt_ctf_field_type_enumeration_copy(
2669                 struct bt_ctf_field_type *type)
2670 {
2671         size_t i;
2672         struct bt_ctf_field_type *copy = NULL, *copy_container;
2673         struct bt_ctf_field_type_enumeration *enumeration, *copy_enumeration;
2674
2675         enumeration = container_of(type, struct bt_ctf_field_type_enumeration,
2676                 parent);
2677
2678         /* Copy the source enumeration's container */
2679         copy_container = bt_ctf_field_type_copy(enumeration->container);
2680         if (!copy_container) {
2681                 goto end;
2682         }
2683
2684         copy = bt_ctf_field_type_enumeration_create(copy_container);
2685         if (!copy) {
2686                 goto end;
2687         }
2688         copy_enumeration = container_of(copy,
2689                 struct bt_ctf_field_type_enumeration, parent);
2690
2691         /* Copy all enumaration entries */
2692         for (i = 0; i < enumeration->entries->len; i++) {
2693                 struct enumeration_mapping *mapping = g_ptr_array_index(
2694                         enumeration->entries, i);
2695                 struct enumeration_mapping* copy_mapping = g_new0(
2696                         struct enumeration_mapping, 1);
2697
2698                 if (!copy_mapping) {
2699                         goto error;
2700                 }
2701
2702                 *copy_mapping = *mapping;
2703                 g_ptr_array_add(copy_enumeration->entries, copy_mapping);
2704         }
2705
2706         copy_enumeration->declaration = enumeration->declaration;
2707 end:
2708         if (copy_container) {
2709                 bt_ctf_field_type_put(copy_container);
2710         }
2711         return copy;
2712 error:
2713         if (copy_container) {
2714                 bt_ctf_field_type_put(copy_container);
2715         }
2716         bt_ctf_field_type_put(copy);
2717         return NULL;
2718 }
2719
2720 static
2721 struct bt_ctf_field_type *bt_ctf_field_type_floating_point_copy(
2722                 struct bt_ctf_field_type *type)
2723 {
2724         struct bt_ctf_field_type *copy;
2725         struct bt_ctf_field_type_floating_point *floating_point, *copy_float;
2726
2727         floating_point = container_of(type,
2728                 struct bt_ctf_field_type_floating_point, parent);
2729         copy = bt_ctf_field_type_floating_point_create();
2730         if (!copy) {
2731                 goto end;
2732         }
2733
2734         copy_float = container_of(copy,
2735                 struct bt_ctf_field_type_floating_point, parent);
2736         copy_float->declaration = floating_point->declaration;
2737         copy_float->sign = floating_point->sign;
2738         copy_float->mantissa = floating_point->mantissa;
2739         copy_float->exp = floating_point->exp;
2740 end:
2741         return copy;
2742 }
2743
2744 static
2745 struct bt_ctf_field_type *bt_ctf_field_type_structure_copy(
2746                 struct bt_ctf_field_type *type)
2747 {
2748         int i;
2749         GHashTableIter iter;
2750         gpointer key, value;
2751         struct bt_ctf_field_type *copy;
2752         struct bt_ctf_field_type_structure *structure, *copy_structure;
2753
2754         structure = container_of(type, struct bt_ctf_field_type_structure,
2755                 parent);
2756         copy = bt_ctf_field_type_structure_create();
2757         if (!copy) {
2758                 goto end;
2759         }
2760
2761         copy_structure = container_of(copy,
2762                 struct bt_ctf_field_type_structure, parent);
2763
2764         /* Copy field_name_to_index */
2765         g_hash_table_iter_init(&iter, structure->field_name_to_index);
2766         while (g_hash_table_iter_next (&iter, &key, &value)) {
2767                 g_hash_table_insert(copy_structure->field_name_to_index,
2768                         key, value);
2769         }
2770
2771         for (i = 0; i < structure->fields->len; i++) {
2772                 struct structure_field *entry, *copy_entry;
2773                 struct bt_ctf_field_type *copy_field;
2774
2775                 copy_entry = g_new0(struct structure_field, 1);
2776                 if (!copy_entry) {
2777                         goto error;
2778                 }
2779
2780                 entry = g_ptr_array_index(structure->fields, i);
2781                 copy_field = bt_ctf_field_type_copy(entry->type);
2782                 if (!copy_field) {
2783                         g_free(copy_entry);
2784                         goto error;
2785                 }
2786
2787                 copy_entry->name = entry->name;
2788                 copy_entry->type = copy_field;
2789                 g_ptr_array_add(copy_structure->fields, copy_entry);
2790         }
2791
2792         copy_structure->declaration = structure->declaration;
2793 end:
2794         return copy;
2795 error:
2796         bt_ctf_field_type_put(copy);
2797         return NULL;
2798 }
2799
2800 static
2801 struct bt_ctf_field_type *bt_ctf_field_type_variant_copy(
2802                 struct bt_ctf_field_type *type)
2803 {
2804         int i;
2805         GHashTableIter iter;
2806         gpointer key, value;
2807         struct bt_ctf_field_type *copy = NULL, *copy_tag = NULL;
2808         struct bt_ctf_field_type_variant *variant, *copy_variant;
2809
2810         variant = container_of(type, struct bt_ctf_field_type_variant,
2811                 parent);
2812         if (variant->tag) {
2813                 copy_tag = bt_ctf_field_type_copy(&variant->tag->parent);
2814                 if (!copy_tag) {
2815                         goto end;
2816                 }
2817         }
2818
2819         copy = bt_ctf_field_type_variant_create(copy_tag,
2820                 variant->tag_name->len ? variant->tag_name->str : NULL);
2821         if (!copy) {
2822                 goto end;
2823         }
2824
2825         copy_variant = container_of(copy, struct bt_ctf_field_type_variant,
2826                 parent);
2827
2828         /* Copy field_name_to_index */
2829         g_hash_table_iter_init(&iter, variant->field_name_to_index);
2830         while (g_hash_table_iter_next (&iter, &key, &value)) {
2831                 g_hash_table_insert(copy_variant->field_name_to_index,
2832                         key, value);
2833         }
2834
2835         for (i = 0; i < variant->fields->len; i++) {
2836                 struct structure_field *entry, *copy_entry;
2837                 struct bt_ctf_field_type *copy_field;
2838
2839                 copy_entry = g_new0(struct structure_field, 1);
2840                 if (!copy_entry) {
2841                         goto error;
2842                 }
2843
2844                 entry = g_ptr_array_index(variant->fields, i);
2845                 copy_field = bt_ctf_field_type_copy(entry->type);
2846                 if (!copy_field) {
2847                         g_free(copy_entry);
2848                         goto error;
2849                 }
2850
2851                 copy_entry->name = entry->name;
2852                 copy_entry->type = copy_field;
2853                 g_ptr_array_add(copy_variant->fields, copy_entry);
2854         }
2855
2856         copy_variant->declaration = variant->declaration;
2857 end:
2858         if (copy_tag) {
2859                 bt_ctf_field_type_put(copy_tag);
2860         }
2861
2862         return copy;
2863 error:
2864         if (copy_tag) {
2865                 bt_ctf_field_type_put(copy_tag);
2866         }
2867
2868         bt_ctf_field_type_put(copy);
2869         return NULL;
2870 }
2871
2872 static
2873 struct bt_ctf_field_type *bt_ctf_field_type_array_copy(
2874                 struct bt_ctf_field_type *type)
2875 {
2876         struct bt_ctf_field_type *copy = NULL, *copy_element;
2877         struct bt_ctf_field_type_array *array, *copy_array;
2878
2879         array = container_of(type, struct bt_ctf_field_type_array,
2880                 parent);
2881         copy_element = bt_ctf_field_type_copy(array->element_type);
2882         if (!copy_element) {
2883                 goto end;
2884         }
2885
2886         copy = bt_ctf_field_type_array_create(copy_element, array->length);
2887         if (!copy) {
2888                 goto end;
2889         }
2890
2891         copy_array = container_of(copy, struct bt_ctf_field_type_array,
2892                 parent);
2893         copy_array->declaration = array->declaration;
2894 end:
2895         if (copy_element) {
2896                 bt_ctf_field_type_put(copy_element);
2897         }
2898
2899         return copy;
2900 }
2901
2902 static
2903 struct bt_ctf_field_type *bt_ctf_field_type_sequence_copy(
2904                 struct bt_ctf_field_type *type)
2905 {
2906         struct bt_ctf_field_type *copy = NULL, *copy_element;
2907         struct bt_ctf_field_type_sequence *sequence, *copy_sequence;
2908
2909         sequence = container_of(type, struct bt_ctf_field_type_sequence,
2910                 parent);
2911         copy_element = bt_ctf_field_type_copy(sequence->element_type);
2912         if (!copy_element) {
2913                 goto end;
2914         }
2915
2916         copy = bt_ctf_field_type_sequence_create(copy_element,
2917                 sequence->length_field_name->len ?
2918                         sequence->length_field_name->str : NULL);
2919         if (!copy) {
2920                 goto end;
2921         }
2922
2923         copy_sequence = container_of(copy, struct bt_ctf_field_type_sequence,
2924                 parent);
2925         copy_sequence->declaration = sequence->declaration;
2926 end:
2927         if (copy_element) {
2928                 bt_ctf_field_type_put(copy_element);
2929         }
2930
2931         return copy;
2932 }
2933
2934 static
2935 struct bt_ctf_field_type *bt_ctf_field_type_string_copy(
2936                 struct bt_ctf_field_type *type)
2937 {
2938         struct bt_ctf_field_type *copy;
2939         struct bt_ctf_field_type_string *string, *copy_string;
2940
2941         copy = bt_ctf_field_type_string_create();
2942         if (!copy) {
2943                 goto end;
2944         }
2945
2946         string = container_of(type, struct bt_ctf_field_type_string,
2947                 parent);
2948         copy_string = container_of(type, struct bt_ctf_field_type_string,
2949                 parent);
2950         copy_string->declaration = string->declaration;
2951 end:
2952         return copy;
2953 }