tests/lib/test_ctf_writer.c

   1 /*
   2  * test-ctf-writer.c
   3  *
   4  * CTF Writer test
   5  *
   6  * Copyright 2013 - 2015 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; under version 2 of the License.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License along
  18  * with this program; if not, write to the Free Software Foundation, Inc.,
  19  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  20  */
  21
  22 #define _GNU_SOURCE
  23 #include <babeltrace/ctf-writer/writer.h>
  24 #include <babeltrace/ctf-writer/clock.h>
  25 #include <babeltrace/ctf-writer/stream.h>
  26 #include <babeltrace/ctf-writer/event.h>
  27 #include <babeltrace/ctf-writer/event-types.h>
  28 #include <babeltrace/ctf-writer/event-fields.h>
  29 #include <babeltrace/ctf-ir/stream-class.h>
  30 #include <babeltrace/ctf/events.h>
  31 #include <unistd.h>
  32 #include <stdlib.h>
  33 #include <stdio.h>
  34 #include <sys/utsname.h>
  35 #include <babeltrace/compat/limits.h>
  36 #include <string.h>
  37 #include <assert.h>
  38 #include <sys/wait.h>
  39 #include <fcntl.h>
  40 #include <dirent.h>
  41 #include "tap/tap.h"
  42 #include <math.h>
  43 #include <float.h>
  44
  45 #define METADATA_LINE_SIZE 512
  46 #define SEQUENCE_TEST_LENGTH 10
  47 #define ARRAY_TEST_LENGTH 5
  48 #define PACKET_RESIZE_TEST_LENGTH 100000
  49
  50 #define DEFAULT_CLOCK_FREQ 1000000000
  51 #define DEFAULT_CLOCK_PRECISION 1
  52 #define DEFAULT_CLOCK_OFFSET 0
  53 #define DEFAULT_CLOCK_OFFSET_S 0
  54 #define DEFAULT_CLOCK_IS_ABSOLUTE 0
  55 #define DEFAULT_CLOCK_TIME 0
  56
  57 static uint64_t current_time = 42;
  58
  59 /* Return 1 if uuids match, zero if different. */
  60 int uuid_match(const unsigned char *uuid_a, const unsigned char *uuid_b)
  61 {
  62         int ret = 0;
  63         int i;
  64
  65         if (!uuid_a || !uuid_b) {
  66                 goto end;
  67         }
  68
  69         for (i = 0; i < 16; i++) {
  70                 if (uuid_a[i] != uuid_b[i]) {
  71                         goto end;
  72                 }
  73         }
  74
  75         ret = 1;
  76 end:
  77         return ret;
  78 }
  79
  80 void validate_metadata(char *parser_path, char *metadata_path)
  81 {
  82         int ret = 0;
  83         char parser_output_path[] = "/tmp/parser_output_XXXXXX";
  84         int parser_output_fd = -1, metadata_fd = -1;
  85
  86         if (!metadata_path) {
  87                 ret = -1;
  88                 goto result;
  89         }
  90
  91         parser_output_fd = mkstemp(parser_output_path);
  92         metadata_fd = open(metadata_path, O_RDONLY);
  93
  94         unlink(parser_output_path);
  95
  96         if (parser_output_fd == -1 || metadata_fd == -1) {
  97                 diag("Failed create temporary files for metadata parsing.");
  98                 ret = -1;
  99                 goto result;
 100         }
 101
 102         pid_t pid = fork();
 103         if (pid) {
 104                 int status = 0;
 105                 waitpid(pid, &status, 0);
 106                 ret = WIFEXITED(status) ? WEXITSTATUS(status) : -1;
 107         } else {
 108                 /* ctf-parser-test expects a metadata string on stdin. */
 109                 ret = dup2(metadata_fd, STDIN_FILENO);
 110                 if (ret < 0) {
 111                         perror("# dup2 metadata_fd to STDIN");
 112                         goto result;
 113                 }
 114
 115                 ret = dup2(parser_output_fd, STDOUT_FILENO);
 116                 if (ret < 0) {
 117                         perror("# dup2 parser_output_fd to STDOUT");
 118                         goto result;
 119                 }
 120
 121                 ret = dup2(parser_output_fd, STDERR_FILENO);
 122                 if (ret < 0) {
 123                         perror("# dup2 parser_output_fd to STDERR");
 124                         goto result;
 125                 }
 126
 127                 execl(parser_path, "ctf-parser-test", NULL);
 128                 perror("# Could not launch the ctf metadata parser process");
 129                 exit(-1);
 130         }
 131 result:
 132         ok(ret == 0, "Metadata string is valid");
 133
 134         if (ret && metadata_fd >= 0 && parser_output_fd >= 0) {
 135                 char *line;
 136                 size_t len = METADATA_LINE_SIZE;
 137                 FILE *metadata_fp = NULL, *parser_output_fp = NULL;
 138
 139                 metadata_fp = fdopen(metadata_fd, "r");
 140                 if (!metadata_fp) {
 141                         perror("fdopen on metadata_fd");
 142                         goto close_fp;
 143                 }
 144                 metadata_fd = -1;
 145
 146                 parser_output_fp = fdopen(parser_output_fd, "r");
 147                 if (!parser_output_fp) {
 148                         perror("fdopen on parser_output_fd");
 149                         goto close_fp;
 150                 }
 151                 parser_output_fd = -1;
 152
 153                 line = malloc(len);
 154                 if (!line) {
 155                         diag("malloc failure");
 156                 }
 157
 158                 rewind(metadata_fp);
 159
 160                 /* Output the metadata and parser output as diagnostic */
 161                 while (getline(&line, &len, metadata_fp) > 0) {
 162                         fprintf(stderr, "# %s", line);
 163                 }
 164
 165                 rewind(parser_output_fp);
 166                 while (getline(&line, &len, parser_output_fp) > 0) {
 167                         fprintf(stderr, "# %s", line);
 168                 }
 169
 170                 free(line);
 171 close_fp:
 172                 if (metadata_fp) {
 173                         if (fclose(metadata_fp)) {
 174                                 diag("fclose failure");
 175                         }
 176                 }
 177                 if (parser_output_fp) {
 178                         if (fclose(parser_output_fp)) {
 179                                 diag("fclose failure");
 180                         }
 181                 }
 182         }
 183
 184         if (parser_output_fd >= 0) {
 185                 if (close(parser_output_fd)) {
 186                         diag("close error");
 187                 }
 188         }
 189         if (metadata_fd >= 0) {
 190                 if (close(metadata_fd)) {
 191                         diag("close error");
 192                 }
 193         }
 194 }
 195
 196 void validate_trace(char *parser_path, char *trace_path)
 197 {
 198         int ret = 0;
 199         char babeltrace_output_path[] = "/tmp/babeltrace_output_XXXXXX";
 200         int babeltrace_output_fd = -1;
 201
 202         if (!trace_path) {
 203                 ret = -1;
 204                 goto result;
 205         }
 206
 207         babeltrace_output_fd = mkstemp(babeltrace_output_path);
 208         unlink(babeltrace_output_path);
 209
 210         if (babeltrace_output_fd == -1) {
 211                 diag("Failed to create a temporary file for trace parsing.");
 212                 ret = -1;
 213                 goto result;
 214         }
 215
 216         pid_t pid = fork();
 217         if (pid) {
 218                 int status = 0;
 219                 waitpid(pid, &status, 0);
 220                 ret = WIFEXITED(status) ? WEXITSTATUS(status) : -1;
 221         } else {
 222                 ret = dup2(babeltrace_output_fd, STDOUT_FILENO);
 223                 if (ret < 0) {
 224                         perror("# dup2 babeltrace_output_fd to STDOUT");
 225                         goto result;
 226                 }
 227
 228                 ret = dup2(babeltrace_output_fd, STDERR_FILENO);
 229                 if (ret < 0) {
 230                         perror("# dup2 babeltrace_output_fd to STDERR");
 231                         goto result;
 232                 }
 233
 234                 execl(parser_path, "babeltrace", trace_path, NULL);
 235                 perror("# Could not launch the babeltrace process");
 236                 exit(-1);
 237         }
 238 result:
 239         ok(ret == 0, "Babeltrace could read the resulting trace");
 240
 241         if (ret && babeltrace_output_fd >= 0) {
 242                 char *line;
 243                 size_t len = METADATA_LINE_SIZE;
 244                 FILE *babeltrace_output_fp = NULL;
 245
 246                 babeltrace_output_fp = fdopen(babeltrace_output_fd, "r");
 247                 if (!babeltrace_output_fp) {
 248                         perror("fdopen on babeltrace_output_fd");
 249                         goto close_fp;
 250                 }
 251                 babeltrace_output_fd = -1;
 252
 253                 line = malloc(len);
 254                 if (!line) {
 255                         diag("malloc error");
 256                 }
 257                 rewind(babeltrace_output_fp);
 258                 while (getline(&line, &len, babeltrace_output_fp) > 0) {
 259                         diag("%s", line);
 260                 }
 261
 262                 free(line);
 263 close_fp:
 264                 if (babeltrace_output_fp) {
 265                         if (fclose(babeltrace_output_fp)) {
 266                                 diag("fclose error");
 267                         }
 268                 }
 269         }
 270
 271         if (babeltrace_output_fd >= 0) {
 272                 if (close(babeltrace_output_fd)) {
 273                         diag("close error");
 274                 }
 275         }
 276 }
 277
 278 void append_simple_event(struct bt_ctf_stream_class *stream_class,
 279                 struct bt_ctf_stream *stream, struct bt_ctf_clock *clock)
 280 {
 281         /* Create and add a simple event class */
 282         struct bt_ctf_event_class *simple_event_class =
 283                 bt_ctf_event_class_create("Simple Event");
 284         struct bt_ctf_field_type *uint_12_type =
 285                 bt_ctf_field_type_integer_create(12);
 286         struct bt_ctf_field_type *int_64_type =
 287                 bt_ctf_field_type_integer_create(64);
 288         struct bt_ctf_field_type *float_type =
 289                 bt_ctf_field_type_floating_point_create();
 290         struct bt_ctf_field_type *enum_type;
 291         struct bt_ctf_field_type *enum_type_unsigned =
 292                 bt_ctf_field_type_enumeration_create(uint_12_type);
 293         struct bt_ctf_field_type *event_context_type =
 294                 bt_ctf_field_type_structure_create();
 295         struct bt_ctf_field_type *returned_type;
 296         struct bt_ctf_event *simple_event;
 297         struct bt_ctf_field *integer_field;
 298         struct bt_ctf_field *float_field;
 299         struct bt_ctf_field *enum_field;
 300         struct bt_ctf_field *enum_field_unsigned;
 301         struct bt_ctf_field *enum_container_field;
 302         const char *mapping_name_test = "truie";
 303         const double double_test_value = 3.1415;
 304         struct bt_ctf_field *enum_container_field_unsigned;
 305         const char *mapping_name_negative_test = "negative_value";
 306         const char *ret_char;
 307         double ret_double;
 308         int64_t ret_range_start_int64_t, ret_range_end_int64_t;
 309         uint64_t ret_range_start_uint64_t, ret_range_end_uint64_t;
 310         struct bt_ctf_clock *ret_clock;
 311         struct bt_ctf_event_class *ret_event_class;
 312         struct bt_ctf_field *packet_context;
 313         struct bt_ctf_field *packet_context_field;
 314         struct bt_ctf_field *stream_event_context;
 315         struct bt_ctf_field *stream_event_context_field;
 316         struct bt_ctf_field *event_context;
 317         struct bt_ctf_field *event_context_field;
 318
 319         ok(uint_12_type, "Create an unsigned integer type");
 320
 321         bt_ctf_field_type_integer_set_signed(int_64_type, 1);
 322         ok(int_64_type, "Create a signed integer type");
 323         enum_type = bt_ctf_field_type_enumeration_create(int_64_type);
 324
 325         returned_type = bt_ctf_field_type_enumeration_get_container_type(enum_type);
 326         ok(returned_type == int_64_type, "bt_ctf_field_type_enumeration_get_container_type returns the right type");
 327         ok(!bt_ctf_field_type_enumeration_get_container_type(NULL), "bt_ctf_field_type_enumeration_get_container_type handles NULL correctly");
 328         ok(!bt_ctf_field_type_enumeration_create(enum_type),
 329                 "bt_ctf_field_enumeration_type_create rejects non-integer container field types");
 330         bt_ctf_field_type_put(returned_type);
 331
 332         bt_ctf_field_type_set_alignment(float_type, 32);
 333         ok(bt_ctf_field_type_get_alignment(NULL) < 0,
 334                 "bt_ctf_field_type_get_alignment handles NULL correctly");
 335         ok(bt_ctf_field_type_get_alignment(float_type) == 32,
 336                 "bt_ctf_field_type_get_alignment returns a correct value");
 337
 338         ok(bt_ctf_field_type_floating_point_set_exponent_digits(float_type, 11) == 0,
 339                 "Set a floating point type's exponent digit count");
 340         ok(bt_ctf_field_type_floating_point_set_mantissa_digits(float_type, 53) == 0,
 341                 "Set a floating point type's mantissa digit count");
 342
 343         ok(bt_ctf_field_type_floating_point_get_exponent_digits(NULL) < 0,
 344                 "bt_ctf_field_type_floating_point_get_exponent_digits handles NULL properly");
 345         ok(bt_ctf_field_type_floating_point_get_mantissa_digits(NULL) < 0,
 346                 "bt_ctf_field_type_floating_point_get_mantissa_digits handles NULL properly");
 347         ok(bt_ctf_field_type_floating_point_get_exponent_digits(float_type) == 11,
 348                 "bt_ctf_field_type_floating_point_get_exponent_digits returns the correct value");
 349         ok(bt_ctf_field_type_floating_point_get_mantissa_digits(float_type) == 53,
 350                 "bt_ctf_field_type_floating_point_get_mantissa_digits returns the correct value");
 351
 352         ok(bt_ctf_field_type_enumeration_add_mapping(enum_type,
 353                 mapping_name_negative_test, -12345, 0) == 0,
 354                 "bt_ctf_field_type_enumeration_add_mapping accepts negative enumeration mappings");
 355         ok(bt_ctf_field_type_enumeration_add_mapping(enum_type,
 356                 "escaping; \"test\"", 1, 1) == 0,
 357                 "bt_ctf_field_type_enumeration_add_mapping accepts enumeration mapping strings containing quotes");
 358         ok(bt_ctf_field_type_enumeration_add_mapping(enum_type,
 359                 "\tanother \'escaping\'\n test\"", 2, 4) == 0,
 360                 "bt_ctf_field_type_enumeration_add_mapping accepts enumeration mapping strings containing special characters");
 361         ok(bt_ctf_field_type_enumeration_add_mapping(enum_type,
 362                 "event clock int float", 5, 22) == 0,
 363                 "Accept enumeration mapping strings containing reserved keywords");
 364         bt_ctf_field_type_enumeration_add_mapping(enum_type, mapping_name_test,
 365                 42, 42);
 366         ok(bt_ctf_field_type_enumeration_add_mapping(enum_type, mapping_name_test,
 367                 43, 51), "bt_ctf_field_type_enumeration_add_mapping rejects duplicate mapping names");
 368         ok(bt_ctf_field_type_enumeration_add_mapping(enum_type, "something",
 369                 -500, -400), "bt_ctf_field_type_enumeration_add_mapping rejects overlapping enum entries");
 370         ok(bt_ctf_field_type_enumeration_add_mapping(enum_type, mapping_name_test,
 371                 -54, -55), "bt_ctf_field_type_enumeration_add_mapping rejects mapping where end < start");
 372         bt_ctf_field_type_enumeration_add_mapping(enum_type, "another entry", -42000, -13000);
 373
 374         ok(bt_ctf_field_type_enumeration_get_mapping_index_by_value(NULL, -42) < 0,
 375                 "bt_ctf_field_type_enumeration_get_mapping_index_by_value handles a NULL field type correctly");
 376         ok(bt_ctf_field_type_enumeration_get_mapping_index_by_value(enum_type, 1000000) < 0,
 377                 "bt_ctf_field_type_enumeration_get_mapping_index_by_value handles invalid values correctly");
 378         ok(bt_ctf_field_type_enumeration_get_mapping_index_by_value(enum_type, -55) == 1,
 379                 "bt_ctf_field_type_enumeration_get_mapping_index_by_value returns the correct index");
 380
 381         ok(bt_ctf_event_class_add_field(simple_event_class, enum_type,
 382                 "enum_field") == 0, "Add signed enumeration field to event");
 383
 384         ok(bt_ctf_field_type_enumeration_get_mapping(NULL, 0, &ret_char,
 385                 &ret_range_start_int64_t, &ret_range_end_int64_t) < 0,
 386                 "bt_ctf_field_type_enumeration_get_mapping handles a NULL enumeration correctly");
 387         ok(bt_ctf_field_type_enumeration_get_mapping(enum_type, 0, NULL,
 388                 &ret_range_start_int64_t, &ret_range_end_int64_t) < 0,
 389                 "bt_ctf_field_type_enumeration_get_mapping handles a NULL string correctly");
 390         ok(bt_ctf_field_type_enumeration_get_mapping(enum_type, 0, &ret_char,
 391                 NULL, &ret_range_end_int64_t) < 0,
 392                 "bt_ctf_field_type_enumeration_get_mapping handles a NULL start correctly");
 393         ok(bt_ctf_field_type_enumeration_get_mapping(enum_type, 0, &ret_char,
 394                 &ret_range_start_int64_t, NULL) < 0,
 395                 "bt_ctf_field_type_enumeration_get_mapping handles a NULL end correctly");
 396         ok(bt_ctf_field_type_enumeration_get_mapping(enum_type, 5, &ret_char,
 397                 &ret_range_start_int64_t, &ret_range_end_int64_t) == 0,
 398                 "bt_ctf_field_type_enumeration_get_mapping returns a value");
 399         ok(!strcmp(ret_char, mapping_name_test),
 400                 "bt_ctf_field_type_enumeration_get_mapping returns a correct mapping name");
 401         ok(ret_range_start_int64_t == 42,
 402                 "bt_ctf_field_type_enumeration_get_mapping returns a correct mapping start");
 403         ok(ret_range_end_int64_t == 42,
 404                 "bt_ctf_field_type_enumeration_get_mapping returns a correct mapping end");
 405
 406         ok(bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned,
 407                 "escaping; \"test\"", 0, 0) == 0,
 408                 "bt_ctf_field_type_enumeration_add_mapping_unsigned accepts enumeration mapping strings containing quotes");
 409         ok(bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned,
 410                 "\tanother \'escaping\'\n test\"", 1, 4) == 0,
 411                 "bt_ctf_field_type_enumeration_add_mapping_unsigned accepts enumeration mapping strings containing special characters");
 412         ok(bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned,
 413                 "event clock int float", 5, 22) == 0,
 414                 "bt_ctf_field_type_enumeration_add_mapping_unsigned accepts enumeration mapping strings containing reserved keywords");
 415         bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned, mapping_name_test,
 416                 42, 42);
 417         ok(bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned, mapping_name_test,
 418                 43, 51), "bt_ctf_field_type_enumeration_add_mapping_unsigned rejects duplicate mapping names");
 419         ok(bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned, "something",
 420                 7, 8), "bt_ctf_field_type_enumeration_add_mapping_unsigned rejects overlapping enum entries");
 421         ok(bt_ctf_field_type_enumeration_add_mapping_unsigned(enum_type_unsigned, mapping_name_test,
 422                 55, 54), "bt_ctf_field_type_enumeration_add_mapping_unsigned rejects mapping where end < start");
 423         ok(bt_ctf_event_class_add_field(simple_event_class, enum_type_unsigned,
 424                 "enum_field_unsigned") == 0, "Add unsigned enumeration field to event");
 425
 426         ok(bt_ctf_field_type_enumeration_get_mapping_count(NULL) < 0,
 427                 "bt_ctf_field_type_enumeration_get_mapping_count handles NULL correctly");
 428         ok(bt_ctf_field_type_enumeration_get_mapping_count(enum_type_unsigned) == 4,
 429                 "bt_ctf_field_type_enumeration_get_mapping_count returns the correct value");
 430
 431         ok(bt_ctf_field_type_enumeration_get_mapping_unsigned(NULL, 0, &ret_char,
 432                 &ret_range_start_uint64_t, &ret_range_end_uint64_t) < 0,
 433                 "bt_ctf_field_type_enumeration_get_mapping_unsigned handles a NULL enumeration correctly");
 434         ok(bt_ctf_field_type_enumeration_get_mapping_unsigned(enum_type_unsigned, 0, NULL,
 435                 &ret_range_start_uint64_t, &ret_range_end_uint64_t) < 0,
 436                 "bt_ctf_field_type_enumeration_get_mapping_unsigned handles a NULL string correctly");
 437         ok(bt_ctf_field_type_enumeration_get_mapping_unsigned(enum_type_unsigned, 0, &ret_char,
 438                 NULL, &ret_range_end_uint64_t) < 0,
 439                 "bt_ctf_field_type_enumeration_get_mapping_unsigned handles a NULL start correctly");
 440         ok(bt_ctf_field_type_enumeration_get_mapping_unsigned(enum_type_unsigned, 0, &ret_char,
 441                 &ret_range_start_uint64_t, NULL) < 0,
 442                 "bt_ctf_field_type_enumeration_get_mapping_unsigned handles a NULL end correctly");
 443         ok(bt_ctf_field_type_enumeration_get_mapping_unsigned(enum_type_unsigned, 3, &ret_char,
 444                 &ret_range_start_uint64_t, &ret_range_end_uint64_t) == 0,
 445                 "bt_ctf_field_type_enumeration_get_mapping_unsigned returns a value");
 446         ok(!strcmp(ret_char, mapping_name_test),
 447                 "bt_ctf_field_type_enumeration_get_mapping_unsigned returns a correct mapping name");
 448         ok(ret_range_start_uint64_t == 42,
 449                 "bt_ctf_field_type_enumeration_get_mapping_unsigned returns a correct mapping start");
 450         ok(ret_range_end_uint64_t == 42,
 451                 "bt_ctf_field_type_enumeration_get_mapping_unsigned returns a correct mapping end");
 452
 453         bt_ctf_event_class_add_field(simple_event_class, uint_12_type,
 454                 "integer_field");
 455         bt_ctf_event_class_add_field(simple_event_class, float_type,
 456                 "float_field");
 457
 458         /* Set an event context type which will contain a single integer*/
 459         ok(!bt_ctf_field_type_structure_add_field(event_context_type, uint_12_type,
 460                 "event_specific_context"),
 461                 "Add event specific context field");
 462         ok(bt_ctf_event_class_get_context_type(NULL) == NULL,
 463                 "bt_ctf_event_class_get_context_type handles NULL correctly");
 464         ok(bt_ctf_event_class_get_context_type(simple_event_class) == NULL,
 465                 "bt_ctf_event_class_get_context_type returns NULL when no event context type is set");
 466
 467         ok(bt_ctf_event_class_set_context_type(simple_event_class, NULL) < 0,
 468                 "bt_ctf_event_class_set_context_type handles a NULL context type correctly");
 469         ok(bt_ctf_event_class_set_context_type(NULL, event_context_type) < 0,
 470                 "bt_ctf_event_class_set_context_type handles a NULL event class correctly");
 471         ok(!bt_ctf_event_class_set_context_type(simple_event_class, event_context_type),
 472                 "Set an event class' context type successfully");
 473         returned_type = bt_ctf_event_class_get_context_type(simple_event_class);
 474         ok(returned_type == event_context_type,
 475                 "bt_ctf_event_class_get_context_type returns the appropriate type");
 476         bt_ctf_field_type_put(returned_type);
 477
 478         bt_ctf_stream_class_add_event_class(stream_class, simple_event_class);
 479
 480         ok(bt_ctf_stream_class_get_event_class_count(NULL) < 0,
 481                 "bt_ctf_stream_class_get_event_class_count handles NULL correctly");
 482         ok(bt_ctf_stream_class_get_event_class_count(stream_class) == 1,
 483                 "bt_ctf_stream_class_get_event_class_count returns a correct number of event classes");
 484         ok(bt_ctf_stream_class_get_event_class(NULL, 0) == NULL,
 485                 "bt_ctf_stream_class_get_event_class handles NULL correctly");
 486         ok(bt_ctf_stream_class_get_event_class(stream_class, 8724) == NULL,
 487                 "bt_ctf_stream_class_get_event_class handles invalid indexes correctly");
 488         ret_event_class = bt_ctf_stream_class_get_event_class(stream_class, 0);
 489         ok(ret_event_class == simple_event_class,
 490                 "bt_ctf_stream_class_get_event_class returns the correct event class");
 491         bt_ctf_event_class_put(ret_event_class);
 492
 493         ok(bt_ctf_stream_class_get_event_class_by_name(NULL, "some event name") == NULL,
 494                 "bt_ctf_stream_class_get_event_class_by_name handles a NULL stream class correctly");
 495         ok(bt_ctf_stream_class_get_event_class_by_name(stream_class, NULL) == NULL,
 496                 "bt_ctf_stream_class_get_event_class_by_name handles a NULL event class name correctly");
 497         ok(bt_ctf_stream_class_get_event_class_by_name(stream_class, "some event name") == NULL,
 498                 "bt_ctf_stream_class_get_event_class_by_name handles non-existing event class names correctly");
 499         ret_event_class = bt_ctf_stream_class_get_event_class_by_name(stream_class, "Simple Event");
 500         ok(ret_event_class == simple_event_class,
 501                 "bt_ctf_stream_class_get_event_class_by_name returns a correct event class");
 502         bt_ctf_event_class_put(ret_event_class);
 503
 504         simple_event = bt_ctf_event_create(simple_event_class);
 505         ok(simple_event,
 506                 "Instantiate an event containing a single integer field");
 507
 508         ok(bt_ctf_event_get_clock(NULL) == NULL,
 509                 "bt_ctf_event_get_clock handles NULL correctly");
 510         ret_clock = bt_ctf_event_get_clock(simple_event);
 511         ok(ret_clock == clock,
 512                 "bt_ctf_event_get_clock returns a correct clock");
 513         bt_ctf_clock_put(clock);
 514
 515         integer_field = bt_ctf_field_create(uint_12_type);
 516         bt_ctf_field_unsigned_integer_set_value(integer_field, 42);
 517         ok(bt_ctf_event_set_payload(simple_event, "integer_field",
 518                 integer_field) == 0, "Use bt_ctf_event_set_payload to set a manually allocated field");
 519
 520         float_field = bt_ctf_event_get_payload(simple_event, "float_field");
 521         ok(bt_ctf_field_floating_point_get_value(float_field, &ret_double),
 522                 "bt_ctf_field_floating_point_get_value fails on an unset float field");
 523         bt_ctf_field_floating_point_set_value(float_field, double_test_value);
 524         ok(bt_ctf_field_floating_point_get_value(NULL, &ret_double),
 525                 "bt_ctf_field_floating_point_get_value properly handles a NULL field");
 526         ok(bt_ctf_field_floating_point_get_value(float_field, NULL),
 527                 "bt_ctf_field_floating_point_get_value properly handles a NULL return value pointer");
 528         ok(!bt_ctf_field_floating_point_get_value(float_field, &ret_double),
 529                 "bt_ctf_field_floating_point_get_value returns a double value");
 530         ok(fabs(ret_double - double_test_value) <= DBL_EPSILON,
 531                 "bt_ctf_field_floating_point_get_value returns a correct value");
 532
 533         enum_field = bt_ctf_field_create(enum_type);
 534         ret_char = bt_ctf_field_enumeration_get_mapping_name(NULL);
 535         ok(!ret_char, "bt_ctf_field_enumeration_get_mapping_name handles NULL correctly");
 536         ret_char = bt_ctf_field_enumeration_get_mapping_name(enum_field);
 537         ok(!ret_char, "bt_ctf_field_enumeration_get_mapping_name returns NULL if the enumeration's container field is unset");
 538         enum_container_field = bt_ctf_field_enumeration_get_container(
 539                 enum_field);
 540         ok(bt_ctf_field_signed_integer_set_value(
 541                 enum_container_field, -42) == 0,
 542                 "Set signed enumeration container value");
 543         ret_char = bt_ctf_field_enumeration_get_mapping_name(enum_field);
 544         ok(!strcmp(ret_char, mapping_name_negative_test),
 545                 "bt_ctf_field_enumeration_get_mapping_name returns the correct mapping name with an signed container");
 546         bt_ctf_event_set_payload(simple_event, "enum_field", enum_field);
 547
 548         enum_field_unsigned = bt_ctf_field_create(enum_type_unsigned);
 549         enum_container_field_unsigned = bt_ctf_field_enumeration_get_container(
 550                 enum_field_unsigned);
 551         ok(bt_ctf_field_unsigned_integer_set_value(
 552                 enum_container_field_unsigned, 42) == 0,
 553                 "Set unsigned enumeration container value");
 554         bt_ctf_event_set_payload(simple_event, "enum_field_unsigned",
 555                 enum_field_unsigned);
 556         ret_char = bt_ctf_field_enumeration_get_mapping_name(enum_field_unsigned);
 557         ok(!strcmp(ret_char, mapping_name_test),
 558                 "bt_ctf_field_enumeration_get_mapping_name returns the correct mapping name with an unsigned container");
 559
 560         ok(bt_ctf_clock_set_time(clock, current_time) == 0, "Set clock time");
 561
 562         /* Populate stream event context */
 563         stream_event_context = bt_ctf_stream_get_event_context(stream);
 564         stream_event_context_field = bt_ctf_field_structure_get_field(
 565                 stream_event_context, "common_event_context");
 566         bt_ctf_field_unsigned_integer_set_value(stream_event_context_field, 42);
 567
 568         /* Populate the event's context */
 569         ok(bt_ctf_event_get_event_context(NULL) == NULL,
 570                 "bt_ctf_event_get_event_context handles NULL correctly");
 571         event_context = bt_ctf_event_get_event_context(simple_event);
 572         ok(event_context,
 573                 "bt_ctf_event_get_event_context returns a field");
 574         returned_type = bt_ctf_field_get_type(event_context);
 575         ok(returned_type == event_context_type,
 576                 "bt_ctf_event_get_event_context returns a field of the appropriate type");
 577         event_context_field = bt_ctf_field_structure_get_field(event_context,
 578                 "event_specific_context");
 579         ok(!bt_ctf_field_unsigned_integer_set_value(event_context_field, 1234),
 580                 "Successfully set an event context's value");
 581         ok(bt_ctf_event_set_event_context(NULL, event_context) < 0,
 582                 "bt_ctf_event_set_event_context handles a NULL event correctly");
 583         ok(bt_ctf_event_set_event_context(simple_event, NULL) < 0,
 584                 "bt_ctf_event_set_event_context handles a NULL event context correctly");
 585         ok(bt_ctf_event_set_event_context(simple_event, event_context_field) < 0,
 586                 "bt_ctf_event_set_event_context rejects a context of the wrong type");
 587         ok(!bt_ctf_event_set_event_context(simple_event, event_context),
 588                 "Set an event context successfully");
 589
 590         ok(bt_ctf_stream_append_event(stream, simple_event) == 0,
 591                 "Append simple event to trace stream");
 592
 593         ok(bt_ctf_stream_get_packet_context(NULL) == NULL,
 594                 "bt_ctf_stream_get_packet_context handles NULL correctly");
 595         packet_context = bt_ctf_stream_get_packet_context(stream);
 596         ok(packet_context,
 597                 "bt_ctf_stream_get_packet_context returns a packet context");
 598
 599         packet_context_field = bt_ctf_field_structure_get_field(packet_context,
 600                 "packet_size");
 601         ok(packet_context_field,
 602                 "Packet context contains the default packet_size field.");
 603         bt_ctf_field_put(packet_context_field);
 604         packet_context_field = bt_ctf_field_structure_get_field(packet_context,
 605                 "custom_packet_context_field");
 606         ok(bt_ctf_field_unsigned_integer_set_value(packet_context_field, 8) == 0,
 607                 "Custom packet context field value successfully set.");
 608
 609         ok(bt_ctf_stream_set_packet_context(NULL, packet_context_field) < 0,
 610                 "bt_ctf_stream_set_packet_context handles a NULL stream correctly");
 611         ok(bt_ctf_stream_set_packet_context(stream, NULL) < 0,
 612                 "bt_ctf_stream_set_packet_context handles a NULL packet context correctly");
 613         ok(bt_ctf_stream_set_packet_context(stream, packet_context) == 0,
 614                 "Successfully set a stream's packet context");
 615
 616         ok(bt_ctf_stream_flush(stream) == 0,
 617                 "Flush trace stream with one event");
 618
 619         bt_ctf_event_class_put(simple_event_class);
 620         bt_ctf_event_put(simple_event);
 621         bt_ctf_field_type_put(uint_12_type);
 622         bt_ctf_field_type_put(int_64_type);
 623         bt_ctf_field_type_put(float_type);
 624         bt_ctf_field_type_put(enum_type);
 625         bt_ctf_field_type_put(enum_type_unsigned);
 626         bt_ctf_field_type_put(returned_type);
 627         bt_ctf_field_type_put(event_context_type);
 628         bt_ctf_field_put(integer_field);
 629         bt_ctf_field_put(float_field);
 630         bt_ctf_field_put(enum_field);
 631         bt_ctf_field_put(enum_field_unsigned);
 632         bt_ctf_field_put(enum_container_field);
 633         bt_ctf_field_put(enum_container_field_unsigned);
 634         bt_ctf_field_put(packet_context);
 635         bt_ctf_field_put(packet_context_field);
 636         bt_ctf_field_put(stream_event_context);
 637         bt_ctf_field_put(stream_event_context_field);
 638         bt_ctf_field_put(event_context);
 639         bt_ctf_field_put(event_context_field);
 640 }
 641
 642 void append_complex_event(struct bt_ctf_stream_class *stream_class,
 643                 struct bt_ctf_stream *stream, struct bt_ctf_clock *clock)
 644 {
 645         int i;
 646         const char *complex_test_event_string = "Complex Test Event";
 647         const char *test_string = "Test string";
 648         struct bt_ctf_field_type *uint_35_type =
 649                 bt_ctf_field_type_integer_create(35);
 650         struct bt_ctf_field_type *int_16_type =
 651                 bt_ctf_field_type_integer_create(16);
 652         struct bt_ctf_field_type *uint_3_type =
 653                 bt_ctf_field_type_integer_create(3);
 654         struct bt_ctf_field_type *enum_variant_type =
 655                 bt_ctf_field_type_enumeration_create(uint_3_type);
 656         struct bt_ctf_field_type *variant_type =
 657                 bt_ctf_field_type_variant_create(enum_variant_type,
 658                         "variant_selector");
 659         struct bt_ctf_field_type *string_type =
 660                 bt_ctf_field_type_string_create();
 661         struct bt_ctf_field_type *sequence_type;
 662         struct bt_ctf_field_type *array_type;
 663         struct bt_ctf_field_type *inner_structure_type =
 664                 bt_ctf_field_type_structure_create();
 665         struct bt_ctf_field_type *complex_structure_type =
 666                 bt_ctf_field_type_structure_create();
 667         struct bt_ctf_field_type *ret_field_type;
 668         struct bt_ctf_event_class *event_class;
 669         struct bt_ctf_event *event;
 670         struct bt_ctf_field *uint_35_field, *int_16_field, *a_string_field,
 671                 *inner_structure_field, *complex_structure_field,
 672                 *a_sequence_field, *enum_variant_field, *enum_container_field,
 673                 *variant_field, *an_array_field, *ret_field;
 674         uint64_t ret_unsigned_int;
 675         int64_t ret_signed_int;
 676         const char *ret_string;
 677         struct bt_ctf_stream_class *ret_stream_class;
 678         struct bt_ctf_event_class *ret_event_class;
 679         struct bt_ctf_field *packet_context, *packet_context_field;
 680
 681         bt_ctf_field_type_set_alignment(int_16_type, 32);
 682         bt_ctf_field_type_integer_set_signed(int_16_type, 1);
 683         bt_ctf_field_type_integer_set_base(uint_35_type,
 684                 BT_CTF_INTEGER_BASE_HEXADECIMAL);
 685
 686         array_type = bt_ctf_field_type_array_create(int_16_type, ARRAY_TEST_LENGTH);
 687         sequence_type = bt_ctf_field_type_sequence_create(int_16_type,
 688                 "seq_len");
 689
 690         ok(bt_ctf_field_type_array_get_element_type(NULL) == NULL,
 691                 "bt_ctf_field_type_array_get_element_type handles NULL correctly");
 692         ret_field_type = bt_ctf_field_type_array_get_element_type(
 693                 array_type);
 694         ok(ret_field_type == int_16_type,
 695                 "bt_ctf_field_type_array_get_element_type returns the correct type");
 696         bt_ctf_field_type_put(ret_field_type);
 697
 698         ok(bt_ctf_field_type_array_get_length(NULL) < 0,
 699                 "bt_ctf_field_type_array_get_length handles NULL correctly");
 700         ok(bt_ctf_field_type_array_get_length(array_type) == ARRAY_TEST_LENGTH,
 701                 "bt_ctf_field_type_array_get_length returns the correct length");
 702
 703         bt_ctf_field_type_structure_add_field(inner_structure_type,
 704                 uint_35_type, "seq_len");
 705         bt_ctf_field_type_structure_add_field(inner_structure_type,
 706                 sequence_type, "a_sequence");
 707         bt_ctf_field_type_structure_add_field(inner_structure_type,
 708                 array_type, "an_array");
 709
 710         bt_ctf_field_type_enumeration_add_mapping(enum_variant_type,
 711                 "UINT3_TYPE", 0, 0);
 712         bt_ctf_field_type_enumeration_add_mapping(enum_variant_type,
 713                 "INT16_TYPE", 1, 1);
 714         bt_ctf_field_type_enumeration_add_mapping(enum_variant_type,
 715                 "UINT35_TYPE", 2, 7);
 716
 717         ok(bt_ctf_field_type_enumeration_get_mapping_index_by_name(NULL,
 718                 "INT16_TYPE") < 0,
 719                 "bt_ctf_field_type_enumeration_get_mapping_index_by_name handles a NULL field type correctly");
 720         ok(bt_ctf_field_type_enumeration_get_mapping_index_by_name(
 721                 enum_variant_type, NULL) < 0,
 722                 "bt_ctf_field_type_enumeration_get_mapping_index_by_name handles a NULL name correctly");
 723         ok(bt_ctf_field_type_enumeration_get_mapping_index_by_name(
 724                 enum_variant_type, "INT16_TYPE") == 1,
 725                 "bt_ctf_field_type_enumeration_get_mapping_index_by_name returns the correct index");
 726
 727         ok(bt_ctf_field_type_enumeration_get_mapping_index_by_unsigned_value(NULL, 1) < 0,
 728                 "bt_ctf_field_type_enumeration_get_mapping_index_by_unsigned_value handles a NULL field type correctly");
 729         ok(bt_ctf_field_type_enumeration_get_mapping_index_by_unsigned_value(enum_variant_type, -42) < 0,
 730                 "bt_ctf_field_type_enumeration_get_mapping_index_by_unsigned_value handles invalid values correctly");
 731         ok(bt_ctf_field_type_enumeration_get_mapping_index_by_unsigned_value(enum_variant_type, 5) == 2,
 732                 "bt_ctf_field_type_enumeration_get_mapping_index_by_unsigned_value returns the correct index");
 733
 734         ok(bt_ctf_field_type_variant_add_field(variant_type, uint_3_type,
 735                 "An unknown entry"), "Reject a variant field based on an unknown tag value");
 736         ok(bt_ctf_field_type_variant_add_field(variant_type, uint_3_type,
 737                 "UINT3_TYPE") == 0, "Add a field to a variant");
 738         bt_ctf_field_type_variant_add_field(variant_type, int_16_type,
 739                 "INT16_TYPE");
 740         bt_ctf_field_type_variant_add_field(variant_type, uint_35_type,
 741                 "UINT35_TYPE");
 742
 743         ok(bt_ctf_field_type_variant_get_tag_type(NULL) == NULL,
 744                 "bt_ctf_field_type_variant_get_tag_type handles NULL correctly");
 745         ret_field_type = bt_ctf_field_type_variant_get_tag_type(variant_type);
 746         ok(ret_field_type == enum_variant_type,
 747                 "bt_ctf_field_type_variant_get_tag_type returns a correct tag type");
 748         bt_ctf_field_type_put(ret_field_type);
 749
 750         ok(bt_ctf_field_type_variant_get_tag_name(NULL) == NULL,
 751                 "bt_ctf_field_type_variant_get_tag_name handles NULL correctly");
 752         ret_string = bt_ctf_field_type_variant_get_tag_name(variant_type);
 753         ok(!strcmp(ret_string, "variant_selector"),
 754                 "bt_ctf_field_type_variant_get_tag_name returns the correct variant tag name");
 755         ok(bt_ctf_field_type_variant_get_field_type_by_name(NULL,
 756                 "INT16_TYPE") == NULL,
 757                 "bt_ctf_field_type_variant_get_field_type_by_name handles a NULL variant_type correctly");
 758         ok(bt_ctf_field_type_variant_get_field_type_by_name(variant_type,
 759                 NULL) == NULL,
 760                 "bt_ctf_field_type_variant_get_field_type_by_name handles a NULL field name correctly");
 761         ret_field_type = bt_ctf_field_type_variant_get_field_type_by_name(
 762                 variant_type, "INT16_TYPE");
 763         ok(ret_field_type == int_16_type,
 764                 "bt_ctf_field_type_variant_get_field_type_by_name returns a correct field type");
 765         bt_ctf_field_type_put(ret_field_type);
 766
 767         ok(bt_ctf_field_type_variant_get_field_count(NULL) < 0,
 768                 "bt_ctf_field_type_variant_get_field_count handles NULL correctly");
 769         ok(bt_ctf_field_type_variant_get_field_count(variant_type) == 3,
 770                 "bt_ctf_field_type_variant_get_field_count returns the correct count");
 771
 772         ok(bt_ctf_field_type_variant_get_field(NULL, &ret_string, &ret_field_type, 0) < 0,
 773                 "bt_ctf_field_type_variant_get_field handles a NULL type correctly");
 774         ok(bt_ctf_field_type_variant_get_field(variant_type, NULL, &ret_field_type, 0) < 0,
 775                 "bt_ctf_field_type_variant_get_field handles a NULL field name correctly");
 776         ok(bt_ctf_field_type_variant_get_field(variant_type, &ret_string, NULL, 0) < 0,
 777                 "bt_ctf_field_type_variant_get_field handles a NULL field type correctly");
 778         ok(bt_ctf_field_type_variant_get_field(variant_type, &ret_string, &ret_field_type, 200) < 0,
 779                 "bt_ctf_field_type_variant_get_field handles an invalid index correctly");
 780         ok(bt_ctf_field_type_variant_get_field(variant_type, &ret_string, &ret_field_type, 1) == 0,
 781                 "bt_ctf_field_type_variant_get_field returns a field");
 782         ok(!strcmp("INT16_TYPE", ret_string),
 783                 "bt_ctf_field_type_variant_get_field returns a correct field name");
 784         ok(ret_field_type == int_16_type,
 785                 "bt_ctf_field_type_variant_get_field returns a correct field type");
 786         bt_ctf_field_type_put(ret_field_type);
 787
 788         bt_ctf_field_type_structure_add_field(complex_structure_type,
 789                 enum_variant_type, "variant_selector");
 790         bt_ctf_field_type_structure_add_field(complex_structure_type,
 791                 string_type, "a_string");
 792         bt_ctf_field_type_structure_add_field(complex_structure_type,
 793                 variant_type, "variant_value");
 794         bt_ctf_field_type_structure_add_field(complex_structure_type,
 795                 inner_structure_type, "inner_structure");
 796
 797         ok(bt_ctf_event_class_create("clock") == NULL,
 798                 "Reject creation of an event class with an illegal name");
 799         event_class = bt_ctf_event_class_create(complex_test_event_string);
 800         ok(event_class, "Create an event class");
 801         ok(bt_ctf_event_class_add_field(event_class, uint_35_type, ""),
 802                 "Reject addition of a field with an empty name to an event");
 803         ok(bt_ctf_event_class_add_field(event_class, NULL, "an_integer"),
 804                 "Reject addition of a field with a NULL type to an event");
 805         ok(bt_ctf_event_class_add_field(event_class, uint_35_type,
 806                 "int"),
 807                 "Reject addition of a type with an illegal name to an event");
 808         ok(bt_ctf_event_class_add_field(event_class, uint_35_type,
 809                 "uint_35") == 0,
 810                 "Add field of type unsigned integer to an event");
 811         ok(bt_ctf_event_class_add_field(event_class, int_16_type,
 812                 "int_16") == 0, "Add field of type signed integer to an event");
 813         ok(bt_ctf_event_class_add_field(event_class, complex_structure_type,
 814                 "complex_structure") == 0,
 815                 "Add composite structure to an event");
 816
 817         ok(bt_ctf_event_class_get_name(NULL) == NULL,
 818                 "bt_ctf_event_class_get_name handles NULL correctly");
 819         ret_string = bt_ctf_event_class_get_name(event_class);
 820         ok(!strcmp(ret_string, complex_test_event_string),
 821                 "bt_ctf_event_class_get_name returns a correct name");
 822         ok(bt_ctf_event_class_get_id(event_class) < 0,
 823                 "bt_ctf_event_class_get_id returns a negative value when not set");
 824         ok(bt_ctf_event_class_get_id(NULL) < 0,
 825                 "bt_ctf_event_class_get_id handles NULL correctly");
 826         ok(bt_ctf_event_class_set_id(NULL, 42) < 0,
 827                 "bt_ctf_event_class_set_id handles NULL correctly");
 828         ok(bt_ctf_event_class_set_id(event_class, 42) == 0,
 829                 "Set an event class' id");
 830         ok(bt_ctf_event_class_get_id(event_class) == 42,
 831                 "bt_ctf_event_class_get_id returns the correct value");
 832
 833         /* Add event class to the stream class */
 834         ok(bt_ctf_stream_class_add_event_class(stream_class, NULL),
 835                 "Reject addition of NULL event class to a stream class");
 836         ok(bt_ctf_stream_class_add_event_class(stream_class,
 837                 event_class) == 0, "Add an event class to stream class");
 838
 839         ok(bt_ctf_event_class_get_stream_class(NULL) == NULL,
 840                 "bt_ctf_event_class_get_stream_class handles NULL correctly");
 841         ret_stream_class = bt_ctf_event_class_get_stream_class(event_class);
 842         ok(ret_stream_class == stream_class,
 843                 "bt_ctf_event_class_get_stream_class returns the correct stream class");
 844         bt_ctf_stream_class_put(ret_stream_class);
 845
 846         ok(bt_ctf_event_class_get_field_count(NULL) < 0,
 847                 "bt_ctf_event_class_get_field_count handles NULL correctly");
 848         ok(bt_ctf_event_class_get_field_count(event_class) == 3,
 849                 "bt_ctf_event_class_get_field_count returns a correct value");
 850
 851         ok(bt_ctf_event_class_get_field(NULL, &ret_string,
 852                 &ret_field_type, 0) < 0,
 853                 "bt_ctf_event_class_get_field handles a NULL event class correctly");
 854         ok(bt_ctf_event_class_get_field(event_class, NULL,
 855                 &ret_field_type, 0) < 0,
 856                 "bt_ctf_event_class_get_field handles a NULL field name correctly");
 857         ok(bt_ctf_event_class_get_field(event_class, &ret_string,
 858                 NULL, 0) < 0,
 859                 "bt_ctf_event_class_get_field handles a NULL field type correctly");
 860         ok(bt_ctf_event_class_get_field(event_class, &ret_string,
 861                 &ret_field_type, 42) < 0,
 862                 "bt_ctf_event_class_get_field handles an invalid index correctly");
 863         ok(bt_ctf_event_class_get_field(event_class, &ret_string,
 864                 &ret_field_type, 0) == 0,
 865                 "bt_ctf_event_class_get_field returns a field");
 866         ok(ret_field_type == uint_35_type,
 867                 "bt_ctf_event_class_get_field returns a correct field type");
 868         bt_ctf_field_type_put(ret_field_type);
 869         ok(!strcmp(ret_string, "uint_35"),
 870                 "bt_ctf_event_class_get_field returns a correct field name");
 871         ok(bt_ctf_event_class_get_field_by_name(NULL, "") == NULL,
 872                 "bt_ctf_event_class_get_field_by_name handles a NULL event class correctly");
 873         ok(bt_ctf_event_class_get_field_by_name(event_class, NULL) == NULL,
 874                 "bt_ctf_event_class_get_field_by_name handles a NULL field name correctly");
 875         ok(bt_ctf_event_class_get_field_by_name(event_class, "truie") == NULL,
 876                 "bt_ctf_event_class_get_field_by_name handles an invalid field name correctly");
 877         ret_field_type = bt_ctf_event_class_get_field_by_name(event_class,
 878                 "complex_structure");
 879         ok(ret_field_type == complex_structure_type,
 880                 "bt_ctf_event_class_get_field_by_name returns a correct field type");
 881         bt_ctf_field_type_put(ret_field_type);
 882
 883         event = bt_ctf_event_create(event_class);
 884         ok(event, "Instanciate a complex event");
 885
 886         ok(bt_ctf_event_get_class(NULL) == NULL,
 887                 "bt_ctf_event_get_class handles NULL correctly");
 888         ret_event_class = bt_ctf_event_get_class(event);
 889         ok(ret_event_class == event_class,
 890                 "bt_ctf_event_get_class returns the correct event class");
 891         bt_ctf_event_class_put(ret_event_class);
 892
 893         uint_35_field = bt_ctf_event_get_payload(event, "uint_35");
 894         if (!uint_35_field) {
 895                 printf("uint_35_field is NULL\n");
 896         }
 897
 898         ok(uint_35_field, "Use bt_ctf_event_get_payload to get a field instance ");
 899         bt_ctf_field_unsigned_integer_set_value(uint_35_field, 0x0DDF00D);
 900         ok(bt_ctf_field_unsigned_integer_get_value(NULL, &ret_unsigned_int) < 0,
 901                 "bt_ctf_field_unsigned_integer_get_value properly properly handles a NULL field.");
 902         ok(bt_ctf_field_unsigned_integer_get_value(uint_35_field, NULL) < 0,
 903                 "bt_ctf_field_unsigned_integer_get_value properly handles a NULL return value");
 904         ok(bt_ctf_field_unsigned_integer_get_value(uint_35_field,
 905                 &ret_unsigned_int) == 0,
 906                 "bt_ctf_field_unsigned_integer_get_value succeeds after setting a value");
 907         ok(ret_unsigned_int == 0x0DDF00D,
 908                 "bt_ctf_field_unsigned_integer_get_value returns the correct value");
 909         ok(bt_ctf_field_signed_integer_get_value(uint_35_field,
 910                 &ret_signed_int) < 0,
 911                 "bt_ctf_field_signed_integer_get_value fails on an unsigned field");
 912         bt_ctf_field_put(uint_35_field);
 913
 914         int_16_field = bt_ctf_event_get_payload(event, "int_16");
 915         bt_ctf_field_signed_integer_set_value(int_16_field, -12345);
 916         ok(bt_ctf_field_signed_integer_get_value(NULL, &ret_signed_int) < 0,
 917                 "bt_ctf_field_signed_integer_get_value properly handles a NULL field");
 918         ok(bt_ctf_field_signed_integer_get_value(int_16_field, NULL) < 0,
 919                 "bt_ctf_field_signed_integer_get_value properly handles a NULL return value");
 920         ok(bt_ctf_field_signed_integer_get_value(int_16_field,
 921                 &ret_signed_int) == 0,
 922                 "bt_ctf_field_signed_integer_get_value succeeds after setting a value");
 923         ok(ret_signed_int == -12345,
 924                 "bt_ctf_field_signed_integer_get_value returns the correct value");
 925         ok(bt_ctf_field_unsigned_integer_get_value(int_16_field,
 926                 &ret_unsigned_int) < 0,
 927                 "bt_ctf_field_unsigned_integer_get_value fails on a signed field");
 928         bt_ctf_field_put(int_16_field);
 929
 930         complex_structure_field = bt_ctf_event_get_payload(event,
 931                 "complex_structure");
 932
 933         ok(bt_ctf_field_structure_get_field_by_index(NULL, 0) == NULL,
 934                 "bt_ctf_field_structure_get_field_by_index handles NULL correctly");
 935         ok(bt_ctf_field_structure_get_field_by_index(NULL, 9) == NULL,
 936                 "bt_ctf_field_structure_get_field_by_index handles an invalid index correctly");
 937         inner_structure_field = bt_ctf_field_structure_get_field_by_index(
 938                 complex_structure_field, 3);
 939         ret_field_type = bt_ctf_field_get_type(inner_structure_field);
 940         bt_ctf_field_put(inner_structure_field);
 941         ok(ret_field_type == inner_structure_type,
 942                 "bt_ctf_field_structure_get_field_by_index returns a correct field");
 943         bt_ctf_field_type_put(ret_field_type);
 944
 945         inner_structure_field = bt_ctf_field_structure_get_field(
 946                 complex_structure_field, "inner_structure");
 947         a_string_field = bt_ctf_field_structure_get_field(
 948                 complex_structure_field, "a_string");
 949         enum_variant_field = bt_ctf_field_structure_get_field(
 950                 complex_structure_field, "variant_selector");
 951         variant_field = bt_ctf_field_structure_get_field(
 952                 complex_structure_field, "variant_value");
 953         uint_35_field = bt_ctf_field_structure_get_field(
 954                 inner_structure_field, "seq_len");
 955         a_sequence_field = bt_ctf_field_structure_get_field(
 956                 inner_structure_field, "a_sequence");
 957         an_array_field = bt_ctf_field_structure_get_field(
 958                 inner_structure_field, "an_array");
 959
 960         enum_container_field = bt_ctf_field_enumeration_get_container(
 961                 enum_variant_field);
 962         bt_ctf_field_unsigned_integer_set_value(enum_container_field, 1);
 963         int_16_field = bt_ctf_field_variant_get_field(variant_field,
 964                 enum_variant_field);
 965         bt_ctf_field_signed_integer_set_value(int_16_field, -200);
 966         bt_ctf_field_put(int_16_field);
 967         ok(!bt_ctf_field_string_get_value(a_string_field),
 968                 "bt_ctf_field_string_get_value returns NULL on an unset field");
 969         bt_ctf_field_string_set_value(a_string_field,
 970                 test_string);
 971         ok(!bt_ctf_field_string_get_value(NULL),
 972                 "bt_ctf_field_string_get_value correctly handles NULL");
 973         ret_string = bt_ctf_field_string_get_value(a_string_field);
 974         ok(ret_string, "bt_ctf_field_string_get_value returns a string");
 975         ok(ret_string ? !strcmp(ret_string, test_string) : 0,
 976                 "bt_ctf_field_string_get_value returns a correct value");
 977         bt_ctf_field_unsigned_integer_set_value(uint_35_field,
 978                 SEQUENCE_TEST_LENGTH);
 979
 980         ok(bt_ctf_field_type_variant_get_field_type_from_tag(NULL,
 981                 enum_container_field) == NULL,
 982                 "bt_ctf_field_type_variant_get_field_type_from_tag handles a NULL variant type correctly");
 983         ok(bt_ctf_field_type_variant_get_field_type_from_tag(variant_type,
 984                 NULL) == NULL,
 985                 "bt_ctf_field_type_variant_get_field_type_from_tag handles a NULL tag correctly");
 986         ret_field_type = bt_ctf_field_type_variant_get_field_type_from_tag(
 987                 variant_type, enum_variant_field);
 988         ok(ret_field_type == int_16_type,
 989                 "bt_ctf_field_type_variant_get_field_type_from_tag returns the correct field type");
 990
 991         ok(bt_ctf_field_sequence_get_length(a_sequence_field) == NULL,
 992                 "bt_ctf_field_sequence_get_length returns NULL when length is unset");
 993         ok(bt_ctf_field_sequence_set_length(a_sequence_field,
 994                 uint_35_field) == 0, "Set a sequence field's length");
 995         ret_field = bt_ctf_field_sequence_get_length(a_sequence_field);
 996         ok(ret_field == uint_35_field,
 997                 "bt_ctf_field_sequence_get_length returns the correct length field");
 998         ok(bt_ctf_field_sequence_get_length(NULL) == NULL,
 999                 "bt_ctf_field_sequence_get_length properly handles NULL");
1000
1001         for (i = 0; i < SEQUENCE_TEST_LENGTH; i++) {
1002                 int_16_field = bt_ctf_field_sequence_get_field(
1003                         a_sequence_field, i);
1004                 bt_ctf_field_signed_integer_set_value(int_16_field, 4 - i);
1005                 bt_ctf_field_put(int_16_field);
1006         }
1007
1008         for (i = 0; i < ARRAY_TEST_LENGTH; i++) {
1009                 int_16_field = bt_ctf_field_array_get_field(
1010                         an_array_field, i);
1011                 bt_ctf_field_signed_integer_set_value(int_16_field, i);
1012                 bt_ctf_field_put(int_16_field);
1013         }
1014
1015         bt_ctf_clock_set_time(clock, ++current_time);
1016         ok(bt_ctf_stream_append_event(stream, event) == 0,
1017                 "Append a complex event to a stream");
1018
1019         /*
1020          * Populate the custom packet context field with a dummy value
1021          * otherwise flush will fail.
1022          */
1023         packet_context = bt_ctf_stream_get_packet_context(stream);
1024         packet_context_field = bt_ctf_field_structure_get_field(packet_context,
1025                 "custom_packet_context_field");
1026         bt_ctf_field_unsigned_integer_set_value(packet_context_field, 1);
1027
1028         ok(bt_ctf_stream_flush(stream) == 0,
1029                 "Flush a stream containing a complex event");
1030
1031         bt_ctf_field_put(uint_35_field);
1032         bt_ctf_field_put(a_string_field);
1033         bt_ctf_field_put(inner_structure_field);
1034         bt_ctf_field_put(complex_structure_field);
1035         bt_ctf_field_put(a_sequence_field);
1036         bt_ctf_field_put(an_array_field);
1037         bt_ctf_field_put(enum_variant_field);
1038         bt_ctf_field_put(enum_container_field);
1039         bt_ctf_field_put(variant_field);
1040         bt_ctf_field_put(ret_field);
1041         bt_ctf_field_put(packet_context_field);
1042         bt_ctf_field_put(packet_context);
1043         bt_ctf_field_type_put(uint_35_type);
1044         bt_ctf_field_type_put(int_16_type);
1045         bt_ctf_field_type_put(string_type);
1046         bt_ctf_field_type_put(sequence_type);
1047         bt_ctf_field_type_put(array_type);
1048         bt_ctf_field_type_put(inner_structure_type);
1049         bt_ctf_field_type_put(complex_structure_type);
1050         bt_ctf_field_type_put(uint_3_type);
1051         bt_ctf_field_type_put(enum_variant_type);
1052         bt_ctf_field_type_put(variant_type);
1053         bt_ctf_field_type_put(ret_field_type);
1054         bt_ctf_event_class_put(event_class);
1055         bt_ctf_event_put(event);
1056 }
1057
1058 void type_field_tests()
1059 {
1060         struct bt_ctf_field *uint_12;
1061         struct bt_ctf_field *int_16;
1062         struct bt_ctf_field *string;
1063         struct bt_ctf_field *enumeration;
1064         struct bt_ctf_field_type *composite_structure_type;
1065         struct bt_ctf_field_type *structure_seq_type;
1066         struct bt_ctf_field_type *string_type;
1067         struct bt_ctf_field_type *sequence_type;
1068         struct bt_ctf_field_type *uint_8_type;
1069         struct bt_ctf_field_type *int_16_type;
1070         struct bt_ctf_field_type *uint_12_type =
1071                 bt_ctf_field_type_integer_create(12);
1072         struct bt_ctf_field_type *enumeration_type;
1073         struct bt_ctf_field_type *enumeration_sequence_type;
1074         struct bt_ctf_field_type *enumeration_array_type;
1075         struct bt_ctf_field_type *returned_type;
1076         const char *ret_string;
1077
1078         returned_type = bt_ctf_field_get_type(NULL);
1079         ok(!returned_type, "bt_ctf_field_get_type handles NULL correctly");
1080
1081         ok(uint_12_type, "Create an unsigned integer type");
1082         ok(bt_ctf_field_type_integer_set_base(uint_12_type,
1083                 BT_CTF_INTEGER_BASE_BINARY) == 0,
1084                 "Set integer type's base as binary");
1085         ok(bt_ctf_field_type_integer_set_base(uint_12_type,
1086                 BT_CTF_INTEGER_BASE_DECIMAL) == 0,
1087                 "Set integer type's base as decimal");
1088         ok(bt_ctf_field_type_integer_set_base(uint_12_type,
1089                 BT_CTF_INTEGER_BASE_UNKNOWN),
1090                 "Reject integer type's base set as unknown");
1091         ok(bt_ctf_field_type_integer_set_base(uint_12_type,
1092                 BT_CTF_INTEGER_BASE_OCTAL) == 0,
1093                 "Set integer type's base as octal");
1094         ok(bt_ctf_field_type_integer_set_base(uint_12_type,
1095                 BT_CTF_INTEGER_BASE_HEXADECIMAL) == 0,
1096                 "Set integer type's base as hexadecimal");
1097         ok(bt_ctf_field_type_integer_set_base(uint_12_type, 457417),
1098                 "Reject unknown integer base value");
1099         ok(bt_ctf_field_type_integer_set_signed(uint_12_type, 952835) == 0,
1100                 "Set integer type signedness to signed");
1101         ok(bt_ctf_field_type_integer_set_signed(uint_12_type, 0) == 0,
1102                 "Set integer type signedness to unsigned");
1103         ok(bt_ctf_field_type_integer_get_size(NULL) < 0,
1104                 "bt_ctf_field_type_integer_get_size handles NULL correctly");
1105         ok(bt_ctf_field_type_integer_get_size(uint_12_type) == 12,
1106                 "bt_ctf_field_type_integer_get_size returns a correct value");
1107         ok(bt_ctf_field_type_integer_get_signed(NULL) < 0,
1108                 "bt_ctf_field_type_integer_get_signed handles NULL correctly");
1109         ok(bt_ctf_field_type_integer_get_signed(uint_12_type) == 0,
1110                 "bt_ctf_field_type_integer_get_signed returns a correct value for unsigned types");
1111
1112         ok(bt_ctf_field_type_set_byte_order(NULL,
1113                 BT_CTF_BYTE_ORDER_LITTLE_ENDIAN) < 0,
1114                 "bt_ctf_field_type_set_byte_order handles NULL correctly");
1115         ok(bt_ctf_field_type_set_byte_order(uint_12_type,
1116                 (enum bt_ctf_byte_order) 42) < 0,
1117                 "bt_ctf_field_type_set_byte_order rejects invalid values");
1118         ok(bt_ctf_field_type_set_byte_order(uint_12_type,
1119                 BT_CTF_BYTE_ORDER_LITTLE_ENDIAN) == 0,
1120                 "Set an integer's byte order to little endian");
1121         ok(bt_ctf_field_type_set_byte_order(uint_12_type,
1122                 BT_CTF_BYTE_ORDER_BIG_ENDIAN) == 0,
1123                 "Set an integer's byte order to big endian");
1124         ok(bt_ctf_field_type_get_byte_order(uint_12_type) ==
1125                 BT_CTF_BYTE_ORDER_BIG_ENDIAN,
1126                 "bt_ctf_field_type_get_byte_order returns a correct value");
1127         ok(bt_ctf_field_type_get_byte_order(NULL) ==
1128                 BT_CTF_BYTE_ORDER_UNKNOWN,
1129                 "bt_ctf_field_type_get_byte_order handles NULL correctly");
1130
1131         ok(bt_ctf_field_type_get_type_id(NULL) ==
1132                 CTF_TYPE_UNKNOWN,
1133                 "bt_ctf_field_type_get_type_id handles NULL correctly");
1134         ok(bt_ctf_field_type_get_type_id(uint_12_type) ==
1135                 CTF_TYPE_INTEGER,
1136                 "bt_ctf_field_type_get_type_id returns a correct value with an integer type");
1137
1138         ok(bt_ctf_field_type_integer_get_base(NULL) ==
1139                 BT_CTF_INTEGER_BASE_UNKNOWN,
1140                 "bt_ctf_field_type_integer_get_base handles NULL correctly");
1141         ok(bt_ctf_field_type_integer_get_base(uint_12_type) ==
1142                 BT_CTF_INTEGER_BASE_HEXADECIMAL,
1143                 "bt_ctf_field_type_integer_get_base returns a correct value");
1144
1145         ok(bt_ctf_field_type_integer_set_encoding(NULL, CTF_STRING_ASCII) < 0,
1146                 "bt_ctf_field_type_integer_set_encoding handles NULL correctly");
1147         ok(bt_ctf_field_type_integer_set_encoding(uint_12_type,
1148                 (enum ctf_string_encoding) 123) < 0,
1149                 "bt_ctf_field_type_integer_set_encoding handles invalid encodings correctly");
1150         ok(bt_ctf_field_type_integer_set_encoding(uint_12_type,
1151                 CTF_STRING_UTF8) == 0,
1152                 "Set integer type encoding to UTF8");
1153         ok(bt_ctf_field_type_integer_get_encoding(NULL) == CTF_STRING_UNKNOWN,
1154                 "bt_ctf_field_type_integer_get_encoding handles NULL correctly");
1155         ok(bt_ctf_field_type_integer_get_encoding(uint_12_type) == CTF_STRING_UTF8,
1156                 "bt_ctf_field_type_integer_get_encoding returns a correct value");
1157
1158         int_16_type = bt_ctf_field_type_integer_create(16);
1159         bt_ctf_field_type_integer_set_signed(int_16_type, 1);
1160         ok(bt_ctf_field_type_integer_get_signed(int_16_type) == 1,
1161                 "bt_ctf_field_type_integer_get_signed returns a correct value for signed types");
1162         uint_8_type = bt_ctf_field_type_integer_create(8);
1163         sequence_type =
1164                 bt_ctf_field_type_sequence_create(int_16_type, "seq_len");
1165         ok(sequence_type, "Create a sequence of int16_t type");
1166         ok(bt_ctf_field_type_get_type_id(sequence_type) ==
1167                 CTF_TYPE_SEQUENCE,
1168                 "bt_ctf_field_type_get_type_id returns a correct value with a sequence type");
1169
1170         ok(bt_ctf_field_type_sequence_get_length_field_name(NULL) == NULL,
1171                 "bt_ctf_field_type_sequence_get_length_field_name handles NULL correctly");
1172         ret_string = bt_ctf_field_type_sequence_get_length_field_name(
1173                 sequence_type);
1174         ok(!strcmp(ret_string, "seq_len"),
1175                 "bt_ctf_field_type_sequence_get_length_field_name returns the correct value");
1176         ok(bt_ctf_field_type_sequence_get_element_type(NULL) == NULL,
1177                 "bt_ctf_field_type_sequence_get_element_type handles NULL correctly");
1178         returned_type = bt_ctf_field_type_sequence_get_element_type(
1179                 sequence_type);
1180         ok(returned_type == int_16_type,
1181                 "bt_ctf_field_type_sequence_get_element_type returns the correct type");
1182         bt_ctf_field_type_put(returned_type);
1183
1184         string_type = bt_ctf_field_type_string_create();
1185         ok(string_type, "Create a string type");
1186         ok(bt_ctf_field_type_string_set_encoding(string_type,
1187                 CTF_STRING_NONE),
1188                 "Reject invalid \"None\" string encoding");
1189         ok(bt_ctf_field_type_string_set_encoding(string_type,
1190                 42),
1191                 "Reject invalid string encoding");
1192         ok(bt_ctf_field_type_string_set_encoding(string_type,
1193                 CTF_STRING_ASCII) == 0,
1194                 "Set string encoding to ASCII");
1195
1196         ok(bt_ctf_field_type_string_get_encoding(NULL) ==
1197                 CTF_STRING_UNKNOWN,
1198                 "bt_ctf_field_type_string_get_encoding handles NULL correctly");
1199         ok(bt_ctf_field_type_string_get_encoding(string_type) ==
1200                 CTF_STRING_ASCII,
1201                 "bt_ctf_field_type_string_get_encoding returns the correct value");
1202
1203         structure_seq_type = bt_ctf_field_type_structure_create();
1204         ok(bt_ctf_field_type_get_type_id(structure_seq_type) ==
1205                 CTF_TYPE_STRUCT,
1206                 "bt_ctf_field_type_get_type_id returns a correct value with a structure type");
1207         ok(structure_seq_type, "Create a structure type");
1208         ok(bt_ctf_field_type_structure_add_field(structure_seq_type,
1209                 uint_8_type, "seq_len") == 0,
1210                 "Add a uint8_t type to a structure");
1211         ok(bt_ctf_field_type_structure_add_field(structure_seq_type,
1212                 sequence_type, "a_sequence") == 0,
1213                 "Add a sequence type to a structure");
1214
1215         ok(bt_ctf_field_type_structure_get_field_count(NULL) < 0,
1216                 "bt_ctf_field_type_structure_get_field_count handles NULL correctly");
1217         ok(bt_ctf_field_type_structure_get_field_count(structure_seq_type) == 2,
1218                 "bt_ctf_field_type_structure_get_field_count returns a correct value");
1219
1220         ok(bt_ctf_field_type_structure_get_field(NULL,
1221                 &ret_string, &returned_type, 1) < 0,
1222                 "bt_ctf_field_type_structure_get_field handles a NULL type correctly");
1223         ok(bt_ctf_field_type_structure_get_field(structure_seq_type,
1224                 NULL, &returned_type, 1) < 0,
1225                 "bt_ctf_field_type_structure_get_field handles a NULL name correctly");
1226         ok(bt_ctf_field_type_structure_get_field(structure_seq_type,
1227                 &ret_string, NULL, 1) < 0,
1228                 "bt_ctf_field_type_structure_get_field handles a NULL return type correctly");
1229         ok(bt_ctf_field_type_structure_get_field(structure_seq_type,
1230                 &ret_string, &returned_type, 10) < 0,
1231                 "bt_ctf_field_type_structure_get_field handles an invalid index correctly");
1232         ok(bt_ctf_field_type_structure_get_field(structure_seq_type,
1233                 &ret_string, &returned_type, 1) == 0,
1234                 "bt_ctf_field_type_structure_get_field returns a field");
1235         ok(!strcmp(ret_string, "a_sequence"),
1236                 "bt_ctf_field_type_structure_get_field returns a correct field name");
1237         ok(returned_type == sequence_type,
1238                 "bt_ctf_field_type_structure_get_field returns a correct field type");
1239         bt_ctf_field_type_put(returned_type);
1240
1241         ok(bt_ctf_field_type_structure_get_field_type_by_name(NULL, "a_sequence") == NULL,
1242                 "bt_ctf_field_type_structure_get_field_type_by_name handles a NULL structure correctly");
1243         ok(bt_ctf_field_type_structure_get_field_type_by_name(structure_seq_type, NULL) == NULL,
1244                 "bt_ctf_field_type_structure_get_field_type_by_name handles a NULL field name correctly");
1245         returned_type = bt_ctf_field_type_structure_get_field_type_by_name(
1246                 structure_seq_type, "a_sequence");
1247         ok(returned_type == sequence_type,
1248                 "bt_ctf_field_type_structure_get_field_type_by_name returns the correct field type");
1249         bt_ctf_field_type_put(returned_type);
1250
1251         composite_structure_type = bt_ctf_field_type_structure_create();
1252         ok(bt_ctf_field_type_structure_add_field(composite_structure_type,
1253                 string_type, "a_string") == 0,
1254                 "Add a string type to a structure");
1255         ok(bt_ctf_field_type_structure_add_field(composite_structure_type,
1256                 structure_seq_type, "inner_structure") == 0,
1257                 "Add a structure type to a structure");
1258
1259         ok(bt_ctf_field_type_structure_get_field_type_by_name(
1260                 NULL, "a_sequence") == NULL,
1261                 "bt_ctf_field_type_structure_get_field_type_by_name handles a NULL field correctly");
1262         ok(bt_ctf_field_type_structure_get_field_type_by_name(
1263                 structure_seq_type, NULL) == NULL,
1264                 "bt_ctf_field_type_structure_get_field_type_by_name handles a NULL field name correctly");
1265         returned_type = bt_ctf_field_type_structure_get_field_type_by_name(
1266                 structure_seq_type, "a_sequence");
1267         ok(returned_type == sequence_type,
1268                 "bt_ctf_field_type_structure_get_field_type_by_name returns a correct type");
1269         bt_ctf_field_type_put(returned_type);
1270
1271         int_16 = bt_ctf_field_create(int_16_type);
1272         ok(int_16, "Instanciate a signed 16-bit integer");
1273         uint_12 = bt_ctf_field_create(uint_12_type);
1274         ok(uint_12, "Instanciate an unsigned 12-bit integer");
1275         returned_type = bt_ctf_field_get_type(int_16);
1276         ok(returned_type == int_16_type,
1277                 "bt_ctf_field_get_type returns the correct type");
1278
1279         /* Can't modify types after instanciating them */
1280         ok(bt_ctf_field_type_integer_set_base(uint_12_type,
1281                 BT_CTF_INTEGER_BASE_DECIMAL),
1282                 "Check an integer type' base can't be modified after instanciation");
1283         ok(bt_ctf_field_type_integer_set_signed(uint_12_type, 0),
1284                 "Check an integer type's signedness can't be modified after instanciation");
1285
1286         /* Check signed property is checked */
1287         ok(bt_ctf_field_signed_integer_set_value(uint_12, -52),
1288                 "Check bt_ctf_field_signed_integer_set_value is not allowed on an unsigned integer");
1289         ok(bt_ctf_field_unsigned_integer_set_value(int_16, 42),
1290                 "Check bt_ctf_field_unsigned_integer_set_value is not allowed on a signed integer");
1291
1292         /* Check overflows are properly tested for */
1293         ok(bt_ctf_field_signed_integer_set_value(int_16, -32768) == 0,
1294                 "Check -32768 is allowed for a signed 16-bit integer");
1295         ok(bt_ctf_field_signed_integer_set_value(int_16, 32767) == 0,
1296                 "Check 32767 is allowed for a signed 16-bit integer");
1297         ok(bt_ctf_field_signed_integer_set_value(int_16, 32768),
1298                 "Check 32768 is not allowed for a signed 16-bit integer");
1299         ok(bt_ctf_field_signed_integer_set_value(int_16, -32769),
1300                 "Check -32769 is not allowed for a signed 16-bit integer");
1301         ok(bt_ctf_field_signed_integer_set_value(int_16, -42) == 0,
1302                 "Check -42 is allowed for a signed 16-bit integer");
1303
1304         ok(bt_ctf_field_unsigned_integer_set_value(uint_12, 4095) == 0,
1305                 "Check 4095 is allowed for an unsigned 12-bit integer");
1306         ok(bt_ctf_field_unsigned_integer_set_value(uint_12, 4096),
1307                 "Check 4096 is not allowed for a unsigned 12-bit integer");
1308         ok(bt_ctf_field_unsigned_integer_set_value(uint_12, 0) == 0,
1309                 "Check 0 is allowed for an unsigned 12-bit integer");
1310
1311         string = bt_ctf_field_create(string_type);
1312         ok(string, "Instanciate a string field");
1313         ok(bt_ctf_field_string_set_value(string, "A value") == 0,
1314                 "Set a string's value");
1315
1316         enumeration_type = bt_ctf_field_type_enumeration_create(uint_12_type);
1317         ok(enumeration_type,
1318                 "Create an enumeration type with an unsigned 12-bit integer as container");
1319         enumeration_sequence_type = bt_ctf_field_type_sequence_create(
1320                 enumeration_type, "count");
1321         ok(!enumeration_sequence_type,
1322                 "Check enumeration types are validated when creating a sequence");
1323         enumeration_array_type = bt_ctf_field_type_array_create(
1324                 enumeration_type, 10);
1325         ok(!enumeration_array_type,
1326                 "Check enumeration types are validated when creating an array");
1327         ok(bt_ctf_field_type_structure_add_field(composite_structure_type,
1328                 enumeration_type, "enumeration"),
1329                 "Check enumeration types are validated when adding them as structure members");
1330         enumeration = bt_ctf_field_create(enumeration_type);
1331         ok(!enumeration,
1332                 "Check enumeration types are validated before instantiation");
1333
1334         bt_ctf_field_put(string);
1335         bt_ctf_field_put(uint_12);
1336         bt_ctf_field_put(int_16);
1337         bt_ctf_field_put(enumeration);
1338         bt_ctf_field_type_put(composite_structure_type);
1339         bt_ctf_field_type_put(structure_seq_type);
1340         bt_ctf_field_type_put(string_type);
1341         bt_ctf_field_type_put(sequence_type);
1342         bt_ctf_field_type_put(uint_8_type);
1343         bt_ctf_field_type_put(int_16_type);
1344         bt_ctf_field_type_put(uint_12_type);
1345         bt_ctf_field_type_put(enumeration_type);
1346         bt_ctf_field_type_put(enumeration_sequence_type);
1347         bt_ctf_field_type_put(enumeration_array_type);
1348         bt_ctf_field_type_put(returned_type);
1349 }
1350
1351 void packet_resize_test(struct bt_ctf_stream_class *stream_class,
1352                 struct bt_ctf_stream *stream, struct bt_ctf_clock *clock)
1353 {
1354         /*
1355          * Append enough events to force the underlying packet to be resized.
1356          * Also tests that a new event can be declared after a stream has been
1357          * instantiated and used/flushed.
1358          */
1359         int ret = 0;
1360         int i;
1361         struct bt_ctf_event_class *event_class = bt_ctf_event_class_create(
1362                 "Spammy_Event");
1363         struct bt_ctf_field_type *integer_type =
1364                 bt_ctf_field_type_integer_create(17);
1365         struct bt_ctf_field_type *string_type =
1366                 bt_ctf_field_type_string_create();
1367         struct bt_ctf_event *event = NULL;
1368         struct bt_ctf_field *ret_field = NULL;
1369         struct bt_ctf_field_type *ret_field_type = NULL;
1370         uint64_t ret_uint64;
1371         int events_appended = 0;
1372         struct bt_ctf_field *packet_context = NULL,
1373                 *packet_context_field = NULL, *event_context = NULL;
1374
1375         ret |= bt_ctf_event_class_add_field(event_class, integer_type,
1376                 "field_1");
1377         ret |= bt_ctf_event_class_add_field(event_class, string_type,
1378                 "a_string");
1379         ret |= bt_ctf_stream_class_add_event_class(stream_class, event_class);
1380         ok(ret == 0, "Add a new event class to a stream class after writing an event");
1381         if (ret) {
1382                 goto end;
1383         }
1384
1385         event = bt_ctf_event_create(event_class);
1386         ret_field = bt_ctf_event_get_payload_by_index(event, 0);
1387         ret_field_type = bt_ctf_field_get_type(ret_field);
1388         ok(ret_field_type == integer_type,
1389                 "bt_ctf_event_get_payload_by_index returns a correct field");
1390         bt_ctf_field_type_put(ret_field_type);
1391         bt_ctf_field_put(ret_field);
1392
1393         ok(bt_ctf_event_get_payload_by_index(NULL, 0) == NULL,
1394                 "bt_ctf_event_get_payload_by_index handles NULL correctly");
1395         ok(bt_ctf_event_get_payload_by_index(event, 4) == NULL,
1396                 "bt_ctf_event_get_payload_by_index handles an invalid index correctly");
1397         bt_ctf_event_put(event);
1398
1399         ok(bt_ctf_stream_get_event_context(NULL) == NULL,
1400                 "bt_ctf_stream_get_event_context handles NULL correctly");
1401         event_context = bt_ctf_stream_get_event_context(stream);
1402         ok(event_context,
1403                 "bt_ctf_stream_get_event_context returns a stream event context");
1404         ok(bt_ctf_stream_set_event_context(NULL, event_context) < 0,
1405                 "bt_ctf_stream_set_event_context handles a NULL stream correctly");
1406         ok(bt_ctf_stream_set_event_context(stream, NULL) < 0,
1407                 "bt_ctf_stream_set_event_context handles a NULL stream event context correctly");
1408         ok(!bt_ctf_stream_set_event_context(stream, event_context),
1409                 "bt_ctf_stream_set_event_context correctly set a stream event context");
1410         ret_field = bt_ctf_field_create(integer_type);
1411         ok(bt_ctf_stream_set_event_context(stream, ret_field) < 0,
1412                 "bt_ctf_stream_set_event_context rejects an event context of incorrect type");
1413         bt_ctf_field_put(ret_field);
1414
1415         for (i = 0; i < PACKET_RESIZE_TEST_LENGTH; i++) {
1416                 event = bt_ctf_event_create(event_class);
1417                 struct bt_ctf_field *integer =
1418                         bt_ctf_field_create(integer_type);
1419                 struct bt_ctf_field *string =
1420                         bt_ctf_field_create(string_type);
1421
1422                 ret |= bt_ctf_clock_set_time(clock, ++current_time);
1423                 ret |= bt_ctf_field_unsigned_integer_set_value(integer, i);
1424                 ret |= bt_ctf_event_set_payload(event, "field_1",
1425                         integer);
1426                 bt_ctf_field_put(integer);
1427                 ret |= bt_ctf_field_string_set_value(string, "This is a test");
1428                 ret |= bt_ctf_event_set_payload(event, "a_string",
1429                         string);
1430                 bt_ctf_field_put(string);
1431
1432                 /* Populate stream event context */
1433                 integer = bt_ctf_field_structure_get_field(event_context,
1434                         "common_event_context");
1435                 ret |= bt_ctf_field_unsigned_integer_set_value(integer,
1436                         i % 42);
1437                 bt_ctf_field_put(integer);
1438
1439                 ret |= bt_ctf_stream_append_event(stream, event);
1440                 bt_ctf_event_put(event);
1441
1442                 if (ret) {
1443                         break;
1444                 }
1445         }
1446
1447         events_appended = !!(i == PACKET_RESIZE_TEST_LENGTH);
1448         ok(bt_ctf_stream_get_discarded_events_count(NULL, &ret_uint64) < 0,
1449                 "bt_ctf_stream_get_discarded_events_count handles a NULL stream correctly");
1450         ok(bt_ctf_stream_get_discarded_events_count(stream, NULL) < 0,
1451                 "bt_ctf_stream_get_discarded_events_count handles a NULL return pointer correctly");
1452         ret = bt_ctf_stream_get_discarded_events_count(stream, &ret_uint64);
1453         ok(ret == 0 && ret_uint64 == 0,
1454                 "bt_ctf_stream_get_discarded_events_count returns a correct number of discarded events when none were discarded");
1455         bt_ctf_stream_append_discarded_events(stream, 1000);
1456         ret = bt_ctf_stream_get_discarded_events_count(stream, &ret_uint64);
1457         ok(ret == 0 && ret_uint64 == 1000,
1458                 "bt_ctf_stream_get_discarded_events_count returns a correct number of discarded events when some were discarded");
1459
1460 end:
1461         ok(events_appended, "Append 100 000 events to a stream");
1462
1463         /*
1464          * Populate the custom packet context field with a dummy value
1465          * otherwise flush will fail.
1466          */
1467         packet_context = bt_ctf_stream_get_packet_context(stream);
1468         packet_context_field = bt_ctf_field_structure_get_field(packet_context,
1469                 "custom_packet_context_field");
1470         bt_ctf_field_unsigned_integer_set_value(packet_context_field, 2);
1471
1472         ok(bt_ctf_stream_flush(stream) == 0,
1473                 "Flush a stream that forces a packet resize");
1474         ret = bt_ctf_stream_get_discarded_events_count(stream, &ret_uint64);
1475         ok(ret == 0 && ret_uint64 == 1000,
1476                 "bt_ctf_stream_get_discarded_events_count returns a correct number of discarded events after a flush");
1477         bt_ctf_field_type_put(integer_type);
1478         bt_ctf_field_type_put(string_type);
1479         bt_ctf_field_put(packet_context);
1480         bt_ctf_field_put(packet_context_field);
1481         bt_ctf_field_put(event_context);
1482         bt_ctf_event_class_put(event_class);
1483 }
1484
1485 void test_empty_stream(struct bt_ctf_writer *writer)
1486 {
1487         int ret = 0;
1488         struct bt_ctf_trace *trace = NULL;
1489         struct bt_ctf_stream_class *stream_class = NULL;
1490         struct bt_ctf_stream *stream = NULL;
1491
1492         trace = bt_ctf_writer_get_trace(writer);
1493         if (!trace) {
1494                 diag("Failed to get trace from writer");
1495                 ret = -1;
1496                 goto end;
1497         }
1498
1499         stream_class = bt_ctf_stream_class_create("empty_stream");
1500         if (!stream_class) {
1501                 diag("Failed to create stream class");
1502                 ret = -1;
1503                 goto end;
1504         }
1505
1506         stream = bt_ctf_writer_create_stream(writer, stream_class);
1507         if (!stream) {
1508                 diag("Failed to create writer stream");
1509                 ret = -1;
1510                 goto end;
1511         }
1512 end:
1513         ok(ret == 0,
1514                 "Created a stream class with default attributes and an empty stream");
1515         bt_ctf_trace_put(trace);
1516         bt_ctf_stream_put(stream);
1517         bt_ctf_stream_class_put(stream_class);
1518 }
1519
1520 void test_instanciate_event_before_stream(struct bt_ctf_writer *writer)
1521 {
1522         int ret = 0;
1523         struct bt_ctf_trace *trace = NULL;
1524         struct bt_ctf_clock *clock = NULL;
1525         struct bt_ctf_stream_class *stream_class = NULL;
1526         struct bt_ctf_stream *stream = NULL;
1527         struct bt_ctf_event_class *event_class = NULL;
1528         struct bt_ctf_event *event = NULL;
1529         struct bt_ctf_field_type *integer_type = NULL;
1530         struct bt_ctf_field *integer = NULL;
1531
1532         trace = bt_ctf_writer_get_trace(writer);
1533         if (!trace) {
1534                 diag("Failed to get trace from writer");
1535                 ret = -1;
1536                 goto end;
1537         }
1538
1539         clock = bt_ctf_trace_get_clock(trace, 0);
1540         if (!clock) {
1541                 diag("Failed to get clock from trace");
1542                 ret = -1;
1543                 goto end;
1544         }
1545
1546         stream_class = bt_ctf_stream_class_create("event_before_stream_test");
1547         if (!stream_class) {
1548                 diag("Failed to create stream class");
1549                 ret = -1;
1550                 goto end;
1551         }
1552
1553         ret = bt_ctf_stream_class_set_clock(stream_class, clock);
1554         if (ret) {
1555                 diag("Failed to set stream class clock");
1556                 goto end;
1557         }
1558
1559         event_class = bt_ctf_event_class_create("some_event_class_name");
1560         integer_type = bt_ctf_field_type_integer_create(32);
1561         if (!integer_type) {
1562                 diag("Failed to create integer field type");
1563                 ret = -1;
1564                 goto end;
1565         }
1566
1567         ret = bt_ctf_event_class_add_field(event_class, integer_type,
1568                 "integer_field");
1569         if (ret) {
1570                 diag("Failed to add field to event class");
1571                 goto end;
1572         }
1573
1574         ret = bt_ctf_stream_class_add_event_class(stream_class,
1575                 event_class);
1576         if (ret) {
1577                 diag("Failed to add event class to stream class");
1578         }
1579
1580         event = bt_ctf_event_create(event_class);
1581         if (!event) {
1582                 diag("Failed to create event");
1583                 ret = -1;
1584                 goto end;
1585         }
1586
1587         integer = bt_ctf_event_get_payload_by_index(event, 0);
1588         if (!integer) {
1589                 diag("Failed to get integer field payload from event");
1590                 ret = -1;
1591                 goto end;
1592         }
1593
1594         ret = bt_ctf_field_unsigned_integer_set_value(integer, 1234);
1595         if (ret) {
1596                 diag("Failed to set integer field value");
1597                 goto end;
1598         }
1599
1600         stream = bt_ctf_writer_create_stream(writer, stream_class);
1601         if (!stream) {
1602                 diag("Failed to create writer stream");
1603                 ret = -1;
1604                 goto end;
1605         }
1606
1607         ret = bt_ctf_stream_append_event(stream, event);
1608         if (ret) {
1609                 diag("Failed to append event to stream");
1610                 goto end;
1611         }
1612 end:
1613         ok(ret == 0,
1614                 "Create an event before instanciating its associated stream");
1615         bt_ctf_trace_put(trace);
1616         bt_ctf_stream_put(stream);
1617         bt_ctf_stream_class_put(stream_class);
1618         bt_ctf_event_class_put(event_class);
1619         bt_ctf_event_put(event);
1620         bt_ctf_field_type_put(integer_type);
1621         bt_ctf_field_put(integer);
1622         bt_ctf_clock_put(clock);
1623 }
1624
1625 int main(int argc, char **argv)
1626 {
1627         char trace_path[] = "/tmp/ctfwriter_XXXXXX";
1628         char metadata_path[sizeof(trace_path) + 9];
1629         const char *clock_name = "test_clock";
1630         const char *clock_description = "This is a test clock";
1631         const char *returned_clock_name;
1632         const char *returned_clock_description;
1633         const uint64_t frequency = 1123456789;
1634         const uint64_t offset_s = 1351530929945824323;
1635         const uint64_t offset = 1234567;
1636         const uint64_t precision = 10;
1637         const int is_absolute = 0xFF;
1638         char *metadata_string;
1639         struct bt_ctf_writer *writer;
1640         struct utsname name;
1641         char hostname[BABELTRACE_HOST_NAME_MAX];
1642         struct bt_ctf_clock *clock, *ret_clock;
1643         struct bt_ctf_stream_class *stream_class, *ret_stream_class;
1644         struct bt_ctf_stream *stream1;
1645         const char *ret_string;
1646         const unsigned char *ret_uuid;
1647         unsigned char tmp_uuid[16] = { 0 };
1648         struct bt_ctf_field_type *packet_context_type,
1649                 *packet_context_field_type,
1650                 *packet_header_type,
1651                 *packet_header_field_type,
1652                 *integer_type,
1653                 *stream_event_context_type,
1654                 *ret_field_type,
1655                 *event_header_field_type;
1656         struct bt_ctf_field *packet_header, *packet_header_field;
1657         struct bt_ctf_trace *trace;
1658         int ret;
1659         int64_t ret_int64_t;
1660
1661         if (argc < 3) {
1662                 printf("Usage: tests-ctf-writer path_to_ctf_parser_test path_to_babeltrace\n");
1663                 return -1;
1664         }
1665
1666         plan_no_plan();
1667
1668         if (!mkdtemp(trace_path)) {
1669                 perror("# perror");
1670         }
1671
1672         strcpy(metadata_path, trace_path);
1673         strcat(metadata_path + sizeof(trace_path) - 1, "/metadata");
1674
1675         writer = bt_ctf_writer_create(trace_path);
1676         ok(writer, "bt_ctf_create succeeds in creating trace with path");
1677
1678         ok(!bt_ctf_writer_get_trace(NULL),
1679                 "bt_ctf_writer_get_trace correctly handles NULL");
1680         trace = bt_ctf_writer_get_trace(writer);
1681         ok(trace,
1682                 "bt_ctf_writer_get_trace returns a bt_ctf_trace object");
1683         ok(bt_ctf_trace_set_byte_order(trace, BT_CTF_BYTE_ORDER_BIG_ENDIAN) == 0,
1684                 "Set a trace's byte order to big endian");
1685         ok(bt_ctf_trace_get_byte_order(trace) == BT_CTF_BYTE_ORDER_BIG_ENDIAN,
1686                 "bt_ctf_trace_get_byte_order returns a correct endianness");
1687
1688         /* Add environment context to the trace */
1689         ret = gethostname(hostname, sizeof(hostname));
1690         if (ret < 0) {
1691                 return ret;
1692         }
1693         ok(bt_ctf_writer_add_environment_field(writer, "host", hostname) == 0,
1694                 "Add host (%s) environment field to writer instance",
1695                 hostname);
1696         ok(bt_ctf_writer_add_environment_field(NULL, "test_field",
1697                 "test_value"),
1698                 "bt_ctf_writer_add_environment_field error with NULL writer");
1699         ok(bt_ctf_writer_add_environment_field(writer, NULL,
1700                 "test_value"),
1701                 "bt_ctf_writer_add_environment_field error with NULL field name");
1702         ok(bt_ctf_writer_add_environment_field(writer, "test_field",
1703                 NULL),
1704                 "bt_ctf_writer_add_environment_field error with NULL field value");
1705         ok(bt_ctf_trace_add_environment_field_integer(NULL, "test_env", 0),
1706                 "bt_ctf_trace_add_environment_field_integer handles a NULL trace correctly");
1707         ok(bt_ctf_trace_add_environment_field_integer(trace, NULL, 0),
1708                 "bt_ctf_trace_add_environment_field_integer handles a NULL environment field name");
1709         ok(!bt_ctf_trace_add_environment_field_integer(trace, "test_env",
1710                 123456),
1711                 "Add an integer environment field to a trace instance");
1712
1713         /* Test bt_ctf_trace_get_environment_field_count */
1714         ok(bt_ctf_trace_get_environment_field_count(NULL) < 0,
1715                 "bt_ctf_trace_get_environment_field_count handles a NULL trace correctly");
1716         ok(bt_ctf_trace_get_environment_field_count(trace) == 2,
1717                 "bt_ctf_trace_get_environment_field_count returns a correct number of environment fields");
1718
1719         /* Test bt_ctf_trace_get_environment_field_type */
1720         ok(bt_ctf_trace_get_environment_field_type(trace, 2) ==
1721                 BT_ENVIRONMENT_FIELD_TYPE_UNKNOWN,
1722                 "bt_ctf_trace_get_environment_field_type handles an invalid index correctly");
1723         ok(bt_ctf_trace_get_environment_field_type(NULL, 0) ==
1724                 BT_ENVIRONMENT_FIELD_TYPE_UNKNOWN,
1725                 "bt_ctf_trace_get_environment_field_type handles a NULL trace correctly");
1726         ok(bt_ctf_trace_get_environment_field_type(trace, 1) ==
1727                 BT_ENVIRONMENT_FIELD_TYPE_INTEGER,
1728                 "bt_ctf_trace_get_environment_field_type the correct type of environment field");
1729
1730         /* Test bt_ctf_trace_get_environment_field_name */
1731         ok(bt_ctf_trace_get_environment_field_name(NULL, 0) == NULL,
1732                 "bt_ctf_trace_get_environment_field_name handles a NULL trace correctly");
1733         ok(bt_ctf_trace_get_environment_field_name(trace, -1) == NULL,
1734                 "bt_ctf_trace_get_environment_field_name handles an invalid index correctly");
1735         ret_string = bt_ctf_trace_get_environment_field_name(trace, 0);
1736         ok(ret_string && !strcmp(ret_string, "host"),
1737                 "bt_ctf_trace_get_environment_field_name returns a correct field name");
1738
1739         /* Test bt_ctf_trace_get_environment_field_value_string */
1740         ok(bt_ctf_trace_get_environment_field_value_string(NULL, 0) == NULL,
1741                 "bt_ctf_trace_get_environment_field_value_string handles a NULL trace correctly");
1742         ok(bt_ctf_trace_get_environment_field_value_string(trace, -1) == NULL,
1743                 "bt_ctf_trace_get_environment_field_value_string handles an invalid index correctly");
1744         ok(bt_ctf_trace_get_environment_field_value_string(trace, 1) == NULL,
1745                 "bt_ctf_trace_get_environment_field_value_string validates environment field type");
1746         ret_string = bt_ctf_trace_get_environment_field_value_string(trace, 0);
1747         ok(ret_string && !strcmp(ret_string, hostname),
1748                 "bt_ctf_trace_get_environment_field_value_string returns a correct value");
1749
1750         /* Test bt_ctf_trace_get_environment_field_value_integer */
1751         ok(bt_ctf_trace_get_environment_field_value_integer(NULL, 0, &ret_int64_t) < 0,
1752                 "bt_ctf_trace_get_environment_field_value_integer handles a NULL trace correctly");
1753         ok(bt_ctf_trace_get_environment_field_value_integer(trace, 42, &ret_int64_t) < 0,
1754                 "bt_ctf_trace_get_environment_field_value_integer handles an invalid index correctly");
1755         ok(bt_ctf_trace_get_environment_field_value_integer(trace, 1, NULL) < 0,
1756                 "bt_ctf_trace_get_environment_field_value_integer handles a NULL value argument correctly");
1757         ok(bt_ctf_trace_get_environment_field_value_integer(trace, 0, &ret_int64_t) < 0,
1758                 "bt_ctf_trace_get_environment_field_value_integer validates environment field type");
1759         ok(!bt_ctf_trace_get_environment_field_value_integer(trace, 1, &ret_int64_t),
1760                 "bt_ctf_trace_get_environment_field_value_integer returns a value");
1761         ok(ret_int64_t == 123456,
1762                 "bt_ctf_trace_get_environment_field_value_integer returned a correct value");
1763
1764         if (uname(&name)) {
1765                 perror("uname");
1766                 return -1;
1767         }
1768
1769         ok(bt_ctf_writer_add_environment_field(writer, "sysname", name.sysname)
1770                 == 0, "Add sysname (%s) environment field to writer instance",
1771                 name.sysname);
1772         ok(bt_ctf_writer_add_environment_field(writer, "nodename",
1773                 name.nodename) == 0,
1774                 "Add nodename (%s) environment field to writer instance",
1775                 name.nodename);
1776         ok(bt_ctf_writer_add_environment_field(writer, "release", name.release)
1777                 == 0, "Add release (%s) environment field to writer instance",
1778                 name.release);
1779         ok(bt_ctf_writer_add_environment_field(writer, "version", name.version)
1780                 == 0, "Add version (%s) environment field to writer instance",
1781                 name.version);
1782         ok(bt_ctf_writer_add_environment_field(writer, "machine", name.machine)
1783                 == 0, "Add machine (%s) environment field to writer istance",
1784                 name.machine);
1785
1786         /* Define a clock and add it to the trace */
1787         ok(bt_ctf_clock_create("signed") == NULL,
1788                 "Illegal clock name rejected");
1789         ok(bt_ctf_clock_create(NULL) == NULL, "NULL clock name rejected");
1790         clock = bt_ctf_clock_create(clock_name);
1791         ok(clock, "Clock created sucessfully");
1792         returned_clock_name = bt_ctf_clock_get_name(clock);
1793         ok(returned_clock_name, "bt_ctf_clock_get_name returns a clock name");
1794         ok(returned_clock_name ? !strcmp(returned_clock_name, clock_name) : 0,
1795                 "Returned clock name is valid");
1796
1797         returned_clock_description = bt_ctf_clock_get_description(clock);
1798         ok(!returned_clock_description, "bt_ctf_clock_get_description returns NULL on an unset description");
1799         ok(bt_ctf_clock_set_description(clock, clock_description) == 0,
1800                 "Clock description set successfully");
1801
1802         returned_clock_description = bt_ctf_clock_get_description(clock);
1803         ok(returned_clock_description,
1804                 "bt_ctf_clock_get_description returns a description.");
1805         ok(returned_clock_description ?
1806                 !strcmp(returned_clock_description, clock_description) : 0,
1807                 "Returned clock description is valid");
1808
1809         ok(bt_ctf_clock_get_frequency(clock) == DEFAULT_CLOCK_FREQ,
1810                 "bt_ctf_clock_get_frequency returns the correct default frequency");
1811         ok(bt_ctf_clock_set_frequency(clock, frequency) == 0,
1812                 "Set clock frequency");
1813         ok(bt_ctf_clock_get_frequency(clock) == frequency,
1814                 "bt_ctf_clock_get_frequency returns the correct frequency once it is set");
1815
1816         ok(bt_ctf_clock_get_offset_s(clock) == DEFAULT_CLOCK_OFFSET_S,
1817                 "bt_ctf_clock_get_offset_s returns the correct default offset (in seconds)");
1818         ok(bt_ctf_clock_set_offset_s(clock, offset_s) == 0,
1819                 "Set clock offset (seconds)");
1820         ok(bt_ctf_clock_get_offset_s(clock) == offset_s,
1821                 "bt_ctf_clock_get_offset_s returns the correct default offset (in seconds) once it is set");
1822
1823         ok(bt_ctf_clock_get_offset(clock) == DEFAULT_CLOCK_OFFSET,
1824                 "bt_ctf_clock_get_frequency returns the correct default offset (in ticks)");
1825         ok(bt_ctf_clock_set_offset(clock, offset) == 0, "Set clock offset");
1826         ok(bt_ctf_clock_get_offset(clock) == offset,
1827                 "bt_ctf_clock_get_frequency returns the correct default offset (in ticks) once it is set");
1828
1829         ok(bt_ctf_clock_get_precision(clock) == DEFAULT_CLOCK_PRECISION,
1830                 "bt_ctf_clock_get_precision returns the correct default precision");
1831         ok(bt_ctf_clock_set_precision(clock, precision) == 0,
1832                 "Set clock precision");
1833         ok(bt_ctf_clock_get_precision(clock) == precision,
1834                 "bt_ctf_clock_get_precision returns the correct precision once it is set");
1835
1836         ok(bt_ctf_clock_get_is_absolute(clock) == DEFAULT_CLOCK_IS_ABSOLUTE,
1837                 "bt_ctf_clock_get_precision returns the correct default is_absolute attribute");
1838         ok(bt_ctf_clock_set_is_absolute(clock, is_absolute) == 0,
1839                 "Set clock absolute property");
1840         ok(bt_ctf_clock_get_is_absolute(clock) == !!is_absolute,
1841                 "bt_ctf_clock_get_precision returns the correct is_absolute attribute once it is set");
1842
1843         ok(bt_ctf_clock_get_time(clock) == DEFAULT_CLOCK_TIME,
1844                 "bt_ctf_clock_get_time returns the correct default time");
1845         ok(bt_ctf_clock_set_time(clock, current_time) == 0,
1846                 "Set clock time");
1847         ok(bt_ctf_clock_get_time(clock) == current_time,
1848                 "bt_ctf_clock_get_time returns the correct time once it is set");
1849
1850         ok(bt_ctf_writer_add_clock(writer, clock) == 0,
1851                 "Add clock to writer instance");
1852         ok(bt_ctf_writer_add_clock(writer, clock),
1853                 "Verify a clock can't be added twice to a writer instance");
1854
1855         ok(bt_ctf_trace_get_clock_count(NULL) < 0,
1856                 "bt_ctf_trace_get_clock_count correctly handles NULL");
1857         ok(bt_ctf_trace_get_clock_count(trace) == 1,
1858                 "bt_ctf_trace_get_clock_count returns the correct number of clocks");
1859         ok(!bt_ctf_trace_get_clock(NULL, 0),
1860                 "bt_ctf_trace_get_clock correctly handles NULL");
1861         ok(!bt_ctf_trace_get_clock(trace, -1),
1862                 "bt_ctf_trace_get_clock correctly handles negative indexes");
1863         ok(!bt_ctf_trace_get_clock(trace, 1),
1864                 "bt_ctf_trace_get_clock correctly handles out of bound accesses");
1865         ret_clock = bt_ctf_trace_get_clock(trace, 0);
1866         ok(ret_clock == clock,
1867                 "bt_ctf_trace_get_clock returns the right clock instance");
1868         bt_ctf_clock_put(ret_clock);
1869         ok(!bt_ctf_trace_get_clock_by_name(trace, NULL),
1870                 "bt_ctf_trace_get_clock_by_name correctly handles NULL (trace)");
1871         ok(!bt_ctf_trace_get_clock_by_name(NULL, clock_name),
1872                 "bt_ctf_trace_get_clock_by_name correctly handles NULL (clock name)");
1873         ok(!bt_ctf_trace_get_clock_by_name(NULL, NULL),
1874                 "bt_ctf_trace_get_clock_by_name correctly handles NULL (both)");
1875         ret_clock = bt_ctf_trace_get_clock_by_name(trace, clock_name);
1876         ok(ret_clock == clock,
1877                 "bt_ctf_trace_get_clock_by_name returns the right clock instance");
1878         bt_ctf_clock_put(ret_clock);
1879         ok(!bt_ctf_trace_get_clock_by_name(trace, "random"),
1880                 "bt_ctf_trace_get_clock_by_name fails when the requested clock doesn't exist");
1881
1882         ok(!bt_ctf_clock_get_name(NULL),
1883                 "bt_ctf_clock_get_name correctly handles NULL");
1884         ok(!bt_ctf_clock_get_description(NULL),
1885                 "bt_ctf_clock_get_description correctly handles NULL");
1886         ok(bt_ctf_clock_get_frequency(NULL) == -1ULL,
1887                 "bt_ctf_clock_get_frequency correctly handles NULL");
1888         ok(bt_ctf_clock_get_precision(NULL) == -1ULL,
1889                 "bt_ctf_clock_get_precision correctly handles NULL");
1890         ok(bt_ctf_clock_get_offset_s(NULL) == -1ULL,
1891                 "bt_ctf_clock_get_offset_s correctly handles NULL");
1892         ok(bt_ctf_clock_get_offset(NULL) == -1ULL,
1893                 "bt_ctf_clock_get_offset correctly handles NULL");
1894         ok(bt_ctf_clock_get_is_absolute(NULL) < 0,
1895                 "bt_ctf_clock_get_is_absolute correctly handles NULL");
1896         ok(bt_ctf_clock_get_time(NULL) == -1ULL,
1897                 "bt_ctf_clock_get_time correctly handles NULL");
1898
1899         ok(bt_ctf_clock_set_description(NULL, NULL) < 0,
1900                 "bt_ctf_clock_set_description correctly handles NULL clock");
1901         ok(bt_ctf_clock_set_frequency(NULL, frequency) < 0,
1902                 "bt_ctf_clock_set_frequency correctly handles NULL clock");
1903         ok(bt_ctf_clock_set_precision(NULL, precision) < 0,
1904                 "bt_ctf_clock_get_precision correctly handles NULL clock");
1905         ok(bt_ctf_clock_set_offset_s(NULL, offset_s) < 0,
1906                 "bt_ctf_clock_set_offset_s correctly handles NULL clock");
1907         ok(bt_ctf_clock_set_offset(NULL, offset) < 0,
1908                 "bt_ctf_clock_set_offset correctly handles NULL clock");
1909         ok(bt_ctf_clock_set_is_absolute(NULL, is_absolute) < 0,
1910                 "bt_ctf_clock_set_is_absolute correctly handles NULL clock");
1911         ok(bt_ctf_clock_set_time(NULL, current_time) < 0,
1912                 "bt_ctf_clock_set_time correctly handles NULL clock");
1913         ok(bt_ctf_clock_get_uuid(NULL) == NULL,
1914                 "bt_ctf_clock_get_uuid correctly handles NULL clock");
1915         ret_uuid = bt_ctf_clock_get_uuid(clock);
1916         ok(ret_uuid,
1917                 "bt_ctf_clock_get_uuid returns a UUID");
1918         if (ret_uuid) {
1919                 memcpy(tmp_uuid, ret_uuid, sizeof(tmp_uuid));
1920                 /* Slightly modify UUID */
1921                 tmp_uuid[sizeof(tmp_uuid) - 1]++;
1922         }
1923
1924         ok(bt_ctf_clock_set_uuid(NULL, tmp_uuid) < 0,
1925                 "bt_ctf_clock_set_uuid correctly handles a NULL clock");
1926         ok(bt_ctf_clock_set_uuid(clock, NULL) < 0,
1927                 "bt_ctf_clock_set_uuid correctly handles a NULL UUID");
1928         ok(bt_ctf_clock_set_uuid(clock, tmp_uuid) == 0,
1929                 "bt_ctf_clock_set_uuid sets a new uuid succesfully");
1930         ret_uuid = bt_ctf_clock_get_uuid(clock);
1931         ok(ret_uuid,
1932                 "bt_ctf_clock_get_uuid returns a UUID after setting a new one");
1933         ok(uuid_match(ret_uuid, tmp_uuid),
1934                 "bt_ctf_clock_get_uuid returns the correct UUID after setting a new one");
1935
1936         /* Define a stream class */
1937         stream_class = bt_ctf_stream_class_create("test_stream");
1938
1939         ok(bt_ctf_stream_class_get_name(NULL) == NULL,
1940                 "bt_ctf_stream_class_get_name handles NULL correctly");
1941         ret_string = bt_ctf_stream_class_get_name(stream_class);
1942         ok(ret_string && !strcmp(ret_string, "test_stream"),
1943                 "bt_ctf_stream_class_get_name returns a correct stream class name");
1944
1945         ok(bt_ctf_stream_class_get_clock(stream_class) == NULL,
1946                 "bt_ctf_stream_class_get_clock returns NULL when a clock was not set");
1947         ok(bt_ctf_stream_class_get_clock(NULL) == NULL,
1948                 "bt_ctf_stream_class_get_clock handles NULL correctly");
1949
1950         ok(stream_class, "Create stream class");
1951         ok(bt_ctf_stream_class_set_clock(stream_class, clock) == 0,
1952                 "Set a stream class' clock");
1953         ret_clock = bt_ctf_stream_class_get_clock(stream_class);
1954         ok(ret_clock == clock,
1955                 "bt_ctf_stream_class_get_clock returns a correct clock");
1956         bt_ctf_clock_put(ret_clock);
1957
1958         /* Test the event fields and event types APIs */
1959         type_field_tests();
1960
1961         ok(bt_ctf_stream_class_get_id(stream_class) < 0,
1962                 "bt_ctf_stream_class_get_id returns an error when no id is set");
1963         ok(bt_ctf_stream_class_get_id(NULL) < 0,
1964                 "bt_ctf_stream_class_get_id handles NULL correctly");
1965         ok(bt_ctf_stream_class_set_id(NULL, 123) < 0,
1966                 "bt_ctf_stream_class_set_id handles NULL correctly");
1967         ok(bt_ctf_stream_class_set_id(stream_class, 123) == 0,
1968                 "Set an stream class' id");
1969         ok(bt_ctf_stream_class_get_id(stream_class) == 123,
1970                 "bt_ctf_stream_class_get_id returns the correct value");
1971
1972         /* Validate default event header fields */
1973         ok(bt_ctf_stream_class_get_event_header_type(NULL) == NULL,
1974                 "bt_ctf_stream_class_get_event_header_type handles NULL correctly");
1975         ret_field_type = bt_ctf_stream_class_get_event_header_type(
1976                 stream_class);
1977         ok(ret_field_type,
1978                 "bt_ctf_stream_class_get_event_header_type returns an event header type");
1979         ok(bt_ctf_field_type_get_type_id(ret_field_type) == CTF_TYPE_STRUCT,
1980                 "Default event header type is a structure");
1981         event_header_field_type =
1982                 bt_ctf_field_type_structure_get_field_type_by_name(
1983                 ret_field_type, "id");
1984         ok(event_header_field_type,
1985                 "Default event header type contains an \"id\" field");
1986         ok(bt_ctf_field_type_get_type_id(
1987                 event_header_field_type) == CTF_TYPE_INTEGER,
1988                 "Default event header \"id\" field is an integer");
1989         bt_ctf_field_type_put(event_header_field_type);
1990         event_header_field_type =
1991                 bt_ctf_field_type_structure_get_field_type_by_name(
1992                 ret_field_type, "timestamp");
1993         ok(event_header_field_type,
1994                 "Default event header type contains a \"timestamp\" field");
1995         ok(bt_ctf_field_type_get_type_id(
1996                 event_header_field_type) == CTF_TYPE_INTEGER,
1997                 "Default event header \"timestamp\" field is an integer");
1998         bt_ctf_field_type_put(event_header_field_type);
1999         bt_ctf_field_type_put(ret_field_type);
2000
2001         /* Add a custom trace packet header field */
2002         ok(bt_ctf_trace_get_packet_header_type(NULL) == NULL,
2003                 "bt_ctf_trace_get_packet_header_type handles NULL correctly");
2004         packet_header_type = bt_ctf_trace_get_packet_header_type(trace);
2005         ok(packet_header_type,
2006                 "bt_ctf_trace_get_packet_header_type returns a packet header");
2007         ok(bt_ctf_field_type_get_type_id(packet_header_type) == CTF_TYPE_STRUCT,
2008                 "bt_ctf_trace_get_packet_header_type returns a packet header of type struct");
2009         ret_field_type = bt_ctf_field_type_structure_get_field_type_by_name(
2010                 packet_header_type, "magic");
2011         ok(ret_field_type, "Default packet header type contains a \"magic\" field");
2012         bt_ctf_field_type_put(ret_field_type);
2013         ret_field_type = bt_ctf_field_type_structure_get_field_type_by_name(
2014                 packet_header_type, "uuid");
2015         ok(ret_field_type, "Default packet header type contains a \"uuid\" field");
2016         bt_ctf_field_type_put(ret_field_type);
2017         ret_field_type = bt_ctf_field_type_structure_get_field_type_by_name(
2018                 packet_header_type, "stream_id");
2019         ok(ret_field_type, "Default packet header type contains a \"stream_id\" field");
2020         bt_ctf_field_type_put(ret_field_type);
2021
2022         packet_header_field_type = bt_ctf_field_type_integer_create(22);
2023         ok(!bt_ctf_field_type_structure_add_field(packet_header_type,
2024                 packet_header_field_type, "custom_trace_packet_header_field"),
2025                 "Added a custom trace packet header field successfully");
2026
2027         ok(bt_ctf_trace_set_packet_header_type(NULL, packet_header_type) < 0,
2028                 "bt_ctf_trace_set_packet_header_type handles a NULL trace correctly");
2029         ok(bt_ctf_trace_set_packet_header_type(trace, NULL) < 0,
2030                 "bt_ctf_trace_set_packet_header_type handles a NULL packet_header_type correctly");
2031         ok(!bt_ctf_trace_set_packet_header_type(trace, packet_header_type),
2032                 "Set a trace packet_header_type successfully");
2033
2034         ok(bt_ctf_stream_class_get_packet_context_type(NULL) == NULL,
2035                 "bt_ctf_stream_class_get_packet_context_type handles NULL correctly");
2036
2037         /* Add a custom field to the stream class' packet context */
2038         packet_context_type = bt_ctf_stream_class_get_packet_context_type(stream_class);
2039         ok(packet_context_type,
2040                 "bt_ctf_stream_class_get_packet_context_type returns a packet context type.");
2041         ok(bt_ctf_field_type_get_type_id(packet_context_type) == CTF_TYPE_STRUCT,
2042                 "Packet context is a structure");
2043
2044         ok(bt_ctf_stream_class_set_packet_context_type(NULL, packet_context_type),
2045                 "bt_ctf_stream_class_set_packet_context_type handles a NULL stream class correctly");
2046         ok(bt_ctf_stream_class_set_packet_context_type(stream_class, NULL),
2047                 "bt_ctf_stream_class_set_packet_context_type handles a NULL packet context type correctly");
2048
2049         integer_type = bt_ctf_field_type_integer_create(32);
2050         ok(bt_ctf_stream_class_set_packet_context_type(stream_class,
2051                 integer_type) < 0,
2052                 "bt_ctf_stream_class_set_packet_context_type rejects a packet context that is not a structure");
2053         /* Create a "uint5_t" equivalent custom packet context field */
2054         packet_context_field_type = bt_ctf_field_type_integer_create(5);
2055
2056         ret = bt_ctf_field_type_structure_add_field(packet_context_type,
2057                 packet_context_field_type, "custom_packet_context_field");
2058         ok(ret == 0, "Packet context field added successfully");
2059
2060         /* Define a stream event context containing a my_integer field. */
2061         ok(bt_ctf_stream_class_get_event_context_type(NULL) == NULL,
2062                 "bt_ctf_stream_class_get_event_context_type handles NULL correctly");
2063         ok(bt_ctf_stream_class_get_event_context_type(
2064                 stream_class) == NULL,
2065                 "bt_ctf_stream_class_get_event_context_type returns NULL when no stream event context type was set.");
2066         stream_event_context_type = bt_ctf_field_type_structure_create();
2067         bt_ctf_field_type_structure_add_field(stream_event_context_type,
2068                 integer_type, "common_event_context");
2069
2070         ok(bt_ctf_stream_class_set_event_context_type(NULL,
2071                 stream_event_context_type) < 0,
2072                 "bt_ctf_stream_class_set_event_context_type handles a NULL stream_class correctly");
2073         ok(bt_ctf_stream_class_set_event_context_type(stream_class,
2074                 NULL) < 0,
2075                 "bt_ctf_stream_class_set_event_context_type handles a NULL event_context correctly");
2076         ok(bt_ctf_stream_class_set_event_context_type(stream_class,
2077                 integer_type) < 0,
2078                 "bt_ctf_stream_class_set_event_context_type validates that the event context os a structure");
2079
2080         ok(bt_ctf_stream_class_set_event_context_type(
2081                 stream_class, stream_event_context_type) == 0,
2082                 "Set a new stream event context type");
2083         ret_field_type = bt_ctf_stream_class_get_event_context_type(
2084                 stream_class);
2085         ok(ret_field_type == stream_event_context_type,
2086                 "bt_ctf_stream_class_get_event_context_type returns the correct field type.");
2087         bt_ctf_field_type_put(ret_field_type);
2088
2089         /* Instantiate a stream and append events */
2090         stream1 = bt_ctf_writer_create_stream(writer, stream_class);
2091         ok(stream1, "Instanciate a stream class from writer");
2092
2093         ok(bt_ctf_stream_get_class(NULL) == NULL,
2094                 "bt_ctf_stream_get_class correctly handles NULL");
2095         ret_stream_class = bt_ctf_stream_get_class(stream1);
2096         ok(ret_stream_class,
2097                 "bt_ctf_stream_get_class returns a stream class");
2098         ok(ret_stream_class == stream_class,
2099                 "Returned stream class is of the correct type");
2100
2101         /*
2102          * Try to modify the packet context type after a stream has been
2103          * created.
2104          */
2105         ret = bt_ctf_field_type_structure_add_field(packet_header_type,
2106                 packet_header_field_type, "should_fail");
2107         ok(ret < 0,
2108                 "Trace packet header type can't be modified once a stream has been instanciated");
2109
2110         /*
2111          * Try to modify the packet context type after a stream has been
2112          * created.
2113          */
2114         ret = bt_ctf_field_type_structure_add_field(packet_context_type,
2115                 packet_context_field_type, "should_fail");
2116         ok(ret < 0,
2117                 "Packet context type can't be modified once a stream has been instanciated");
2118
2119         /*
2120          * Try to modify the stream event context type after a stream has been
2121          * created.
2122          */
2123         ret = bt_ctf_field_type_structure_add_field(stream_event_context_type,
2124                 integer_type, "should_fail");
2125         ok(ret < 0,
2126                 "Stream event context type can't be modified once a stream has been instanciated");
2127
2128         /* Should fail after instanciating a stream (frozen) */
2129         ok(bt_ctf_stream_class_set_clock(stream_class, clock),
2130                 "Changes to a stream class that was already instantiated fail");
2131
2132         /* Populate the custom packet header field only once for all tests */
2133         ok(bt_ctf_stream_get_packet_header(NULL) == NULL,
2134                 "bt_ctf_stream_get_packet_header handles NULL correctly");
2135         packet_header = bt_ctf_stream_get_packet_header(stream1);
2136         ok(packet_header,
2137                 "bt_ctf_stream_get_packet_header returns a packet header");
2138         ret_field_type = bt_ctf_field_get_type(packet_header);
2139         ok(ret_field_type == packet_header_type,
2140                 "Stream returns a packet header of the appropriate type");
2141         bt_ctf_field_type_put(ret_field_type);
2142         packet_header_field = bt_ctf_field_structure_get_field(packet_header,
2143                 "custom_trace_packet_header_field");
2144         ok(packet_header_field,
2145                 "Packet header structure contains a custom field with the appropriate name");
2146         ret_field_type = bt_ctf_field_get_type(packet_header_field);
2147         ok(ret_field_type == packet_header_field_type,
2148                 "Custom packet header field is of the expected type");
2149         ok(!bt_ctf_field_unsigned_integer_set_value(packet_header_field,
2150                 54321), "Set custom packet header value successfully");
2151         ok(bt_ctf_stream_set_packet_header(stream1, NULL) < 0,
2152                 "bt_ctf_stream_set_packet_header handles a NULL packet header correctly");
2153         ok(bt_ctf_stream_set_packet_header(NULL, packet_header) < 0,
2154                 "bt_ctf_stream_set_packet_header handles a NULL stream correctly");
2155         ok(bt_ctf_stream_set_packet_header(stream1, packet_header_field) < 0,
2156                 "bt_ctf_stream_set_packet_header rejects a packet header of the wrong type");
2157         ok(!bt_ctf_stream_set_packet_header(stream1, packet_header),
2158                 "Successfully set a stream's packet header");
2159
2160         test_instanciate_event_before_stream(writer);
2161
2162         append_simple_event(stream_class, stream1, clock);
2163
2164         packet_resize_test(stream_class, stream1, clock);
2165
2166         append_complex_event(stream_class, stream1, clock);
2167
2168         test_empty_stream(writer);
2169
2170         metadata_string = bt_ctf_writer_get_metadata_string(writer);
2171         ok(metadata_string, "Get metadata string");
2172
2173         bt_ctf_writer_flush_metadata(writer);
2174         validate_metadata(argv[1], metadata_path);
2175         validate_trace(argv[2], trace_path);
2176
2177         bt_ctf_clock_put(clock);
2178         bt_ctf_stream_class_put(stream_class);
2179         bt_ctf_stream_class_put(ret_stream_class);
2180         bt_ctf_writer_put(writer);
2181         bt_ctf_stream_put(stream1);
2182         bt_ctf_field_type_put(packet_context_type);
2183         bt_ctf_field_type_put(packet_context_field_type);
2184         bt_ctf_field_type_put(integer_type);
2185         bt_ctf_field_type_put(stream_event_context_type);
2186         bt_ctf_field_type_put(ret_field_type);
2187         bt_ctf_field_type_put(packet_header_type);
2188         bt_ctf_field_type_put(packet_header_field_type);
2189         bt_ctf_field_put(packet_header);
2190         bt_ctf_field_put(packet_header_field);
2191         bt_ctf_trace_put(trace);
2192         free(metadata_string);
2193
2194         /* Remove all trace files and delete temporary trace directory */
2195         DIR *trace_dir = opendir(trace_path);
2196         if (!trace_dir) {
2197                 perror("# opendir");
2198                 return -1;
2199         }
2200
2201         struct dirent *entry;
2202         while ((entry = readdir(trace_dir))) {
2203                 if (entry->d_type == DT_REG) {
2204                         unlinkat(dirfd(trace_dir), entry->d_name, 0);
2205                 }
2206         }
2207
2208         rmdir(trace_path);
2209         closedir(trace_dir);
2210         return 0;
2211 }