plugins/libctfcopytrace/ctfcopytrace.c

   1 /*
   2  * copytrace.c
   3  *
   4  * Babeltrace library to create a copy of a CTF trace
   5  *
   6  * Copyright 2017 Julien Desfossez <jdesfossez@efficios.com>
   7  *
   8  * Author: Julien Desfossez <jdesfossez@efficios.com>
   9  *
  10  * Permission is hereby granted, free of charge, to any person obtaining a copy
  11  * of this software and associated documentation files (the "Software"), to deal
  12  * in the Software without restriction, including without limitation the rights
  13  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  14  * copies of the Software, and to permit persons to whom the Software is
  15  * furnished to do so, subject to the following conditions:
  16  *
  17  * The above copyright notice and this permission notice shall be included in
  18  * all copies or substantial portions of the Software.
  19  *
  20  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  21  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  23  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  24  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  25  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  26  * SOFTWARE.
  27  */
  28
  29 #include <babeltrace/ctf-ir/event.h>
  30 #include <babeltrace/ctf-ir/packet.h>
  31 #include <babeltrace/ctf-ir/event-class.h>
  32 #include <babeltrace/ctf-ir/stream.h>
  33 #include <babeltrace/ctf-ir/stream-class.h>
  34 #include <babeltrace/ctf-ir/clock-class.h>
  35 #include <babeltrace/ctf-ir/fields.h>
  36 #include <babeltrace/ctf-writer/stream.h>
  37 #include <assert.h>
  38
  39 #include "ctfcopytrace.h"
  40 #include "clock-fields.h"
  41
  42 BT_HIDDEN
  43 struct bt_ctf_clock_class *ctf_copy_clock_class(FILE *err,
  44                 struct bt_ctf_clock_class *clock_class)
  45 {
  46         int64_t offset, offset_s;
  47         int int_ret;
  48         uint64_t u64_ret;
  49         const char *name, *description;
  50         struct bt_ctf_clock_class *writer_clock_class = NULL;
  51
  52         assert(err && clock_class);
  53
  54         name = bt_ctf_clock_class_get_name(clock_class);
  55         if (!name) {
  56                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
  57                                 __LINE__);
  58                 goto end;
  59         }
  60
  61         writer_clock_class = bt_ctf_clock_class_create(name);
  62         if (!writer_clock_class) {
  63                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
  64                                 __LINE__);
  65                 goto end;
  66         }
  67
  68         description = bt_ctf_clock_class_get_description(clock_class);
  69         if (description) {
  70                 int_ret = bt_ctf_clock_class_set_description(writer_clock_class,
  71                                 description);
  72                 if (int_ret != 0) {
  73                         fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
  74                                         __LINE__);
  75                         goto end_destroy;
  76                 }
  77         }
  78
  79         u64_ret = bt_ctf_clock_class_get_frequency(clock_class);
  80         if (u64_ret == -1ULL) {
  81                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
  82                                 __LINE__);
  83                 goto end_destroy;
  84         }
  85         int_ret = bt_ctf_clock_class_set_frequency(writer_clock_class, u64_ret);
  86         if (int_ret != 0) {
  87                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
  88                                 __LINE__);
  89                 goto end_destroy;
  90         }
  91
  92         u64_ret = bt_ctf_clock_class_get_precision(clock_class);
  93         if (u64_ret == -1ULL) {
  94                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
  95                                 __LINE__);
  96                 goto end_destroy;
  97         }
  98         int_ret = bt_ctf_clock_class_set_precision(writer_clock_class,
  99                 u64_ret);
 100         if (int_ret != 0) {
 101                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 102                                 __LINE__);
 103                 goto end_destroy;
 104         }
 105
 106         int_ret = bt_ctf_clock_class_get_offset_s(clock_class, &offset_s);
 107         if (int_ret != 0) {
 108                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 109                                 __LINE__);
 110                 goto end_destroy;
 111         }
 112
 113         int_ret = bt_ctf_clock_class_set_offset_s(writer_clock_class, offset_s);
 114         if (int_ret != 0) {
 115                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 116                                 __LINE__);
 117                 goto end_destroy;
 118         }
 119
 120         int_ret = bt_ctf_clock_class_get_offset_cycles(clock_class, &offset);
 121         if (int_ret != 0) {
 122                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 123                                 __LINE__);
 124                 goto end_destroy;
 125         }
 126
 127         int_ret = bt_ctf_clock_class_set_offset_cycles(writer_clock_class, offset);
 128         if (int_ret != 0) {
 129                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 130                                 __LINE__);
 131                 goto end_destroy;
 132         }
 133
 134         int_ret = bt_ctf_clock_class_is_absolute(clock_class);
 135         if (int_ret == -1) {
 136                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 137                                 __LINE__);
 138                 goto end_destroy;
 139         }
 140
 141         int_ret = bt_ctf_clock_class_set_is_absolute(writer_clock_class, int_ret);
 142         if (int_ret != 0) {
 143                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 144                                 __LINE__);
 145                 goto end_destroy;
 146         }
 147
 148         goto end;
 149
 150 end_destroy:
 151         BT_PUT(writer_clock_class);
 152 end:
 153         return writer_clock_class;
 154 }
 155
 156 BT_HIDDEN
 157 enum bt_component_status ctf_copy_clock_classes(FILE *err,
 158                 struct bt_ctf_trace *writer_trace,
 159                 struct bt_ctf_stream_class *writer_stream_class,
 160                 struct bt_ctf_trace *trace)
 161 {
 162         enum bt_component_status ret;
 163         int int_ret, clock_class_count, i;
 164
 165         clock_class_count = bt_ctf_trace_get_clock_class_count(trace);
 166
 167         for (i = 0; i < clock_class_count; i++) {
 168                 struct bt_ctf_clock_class *writer_clock_class;
 169                 struct bt_ctf_clock_class *clock_class =
 170                         bt_ctf_trace_get_clock_class_by_index(trace, i);
 171
 172                 if (!clock_class) {
 173                         fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 174                                         __LINE__);
 175                         ret = BT_COMPONENT_STATUS_ERROR;
 176                         goto end;
 177                 }
 178
 179                 writer_clock_class = ctf_copy_clock_class(err, clock_class);
 180                 bt_put(clock_class);
 181                 if (!writer_clock_class) {
 182                         fprintf(err, "Failed to copy clock class");
 183                         ret = BT_COMPONENT_STATUS_ERROR;
 184                         goto end;
 185                 }
 186
 187                 int_ret = bt_ctf_trace_add_clock_class(writer_trace, writer_clock_class);
 188                 if (int_ret != 0) {
 189                         BT_PUT(writer_clock_class);
 190                         fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 191                                         __LINE__);
 192                         ret = BT_COMPONENT_STATUS_ERROR;
 193                         goto end;
 194                 }
 195
 196                 /*
 197                  * Ownership transferred to the trace.
 198                  */
 199                 bt_put(writer_clock_class);
 200         }
 201
 202         ret = BT_COMPONENT_STATUS_OK;
 203
 204 end:
 205         return ret;
 206 }
 207
 208 BT_HIDDEN
 209 struct bt_ctf_event_class *ctf_copy_event_class(FILE *err,
 210                 struct bt_ctf_event_class *event_class)
 211 {
 212         struct bt_ctf_event_class *writer_event_class = NULL;
 213         struct bt_ctf_field_type *context, *payload_type;
 214         const char *name;
 215         int ret;
 216         int64_t id;
 217         enum bt_ctf_event_class_log_level log_level;
 218         const char *emf_uri;
 219
 220         name = bt_ctf_event_class_get_name(event_class);
 221         if (!name) {
 222                 fprintf(err, "[error] %s in %s:%d\n", __func__,
 223                                 __FILE__, __LINE__);
 224                 goto end;
 225         }
 226
 227         writer_event_class = bt_ctf_event_class_create(name);
 228         if (!writer_event_class) {
 229                 fprintf(err, "[error] %s in %s:%d\n", __func__,
 230                                 __FILE__, __LINE__);
 231                 goto end;
 232         }
 233
 234         id = bt_ctf_event_class_get_id(event_class);
 235         if (id < 0) {
 236                 fprintf(err, "[error] %s in %s:%d\n", __func__,
 237                                 __FILE__, __LINE__);
 238                 goto error;
 239         }
 240
 241         ret = bt_ctf_event_class_set_id(writer_event_class, id);
 242         if (ret) {
 243                 fprintf(err, "[error] %s in %s:%d\n", __func__,
 244                                 __FILE__, __LINE__);
 245                 goto error;
 246         }
 247
 248         log_level = bt_ctf_event_class_get_log_level(event_class);
 249         if (log_level < 0) {
 250                 fprintf(err, "[error] %s in %s:%d\n", __func__,
 251                                 __FILE__, __LINE__);
 252                 goto error;
 253         }
 254
 255         ret = bt_ctf_event_class_set_log_level(writer_event_class, log_level);
 256         if (ret) {
 257                 fprintf(err, "[error] %s in %s:%d\n", __func__,
 258                                 __FILE__, __LINE__);
 259                 goto error;
 260         }
 261
 262         emf_uri = bt_ctf_event_class_get_emf_uri(event_class);
 263         if (emf_uri) {
 264                 ret = bt_ctf_event_class_set_emf_uri(writer_event_class,
 265                         emf_uri);
 266                 if (ret) {
 267                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 268                                         __FILE__, __LINE__);
 269                         goto error;
 270                 }
 271         }
 272
 273         payload_type = bt_ctf_event_class_get_payload_type(event_class);
 274         if (payload_type) {
 275                 ret = bt_ctf_event_class_set_payload_type(writer_event_class,
 276                                 payload_type);
 277                 if (ret < 0) {
 278                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 279                                         __FILE__, __LINE__);
 280                         goto error;
 281                 }
 282                 BT_PUT(payload_type);
 283         }
 284
 285         context = bt_ctf_event_class_get_context_type(event_class);
 286         if (context) {
 287                 ret = bt_ctf_event_class_set_context_type(
 288                                 writer_event_class, context);
 289                 BT_PUT(context);
 290                 if (ret < 0) {
 291                         fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 292                                         __LINE__);
 293                         goto error;
 294                 }
 295         }
 296
 297         goto end;
 298
 299 error:
 300         BT_PUT(writer_event_class);
 301 end:
 302         return writer_event_class;
 303 }
 304
 305 BT_HIDDEN
 306 enum bt_component_status ctf_copy_event_classes(FILE *err,
 307                 struct bt_ctf_stream_class *stream_class,
 308                 struct bt_ctf_stream_class *writer_stream_class)
 309 {
 310         enum bt_component_status ret = BT_COMPONENT_STATUS_OK;
 311         struct bt_ctf_event_class *event_class = NULL, *writer_event_class = NULL;
 312         int count, i;
 313
 314         count = bt_ctf_stream_class_get_event_class_count(stream_class);
 315         if (count < 0) {
 316                 fprintf(err, "[error] %s in %s:%d\n", __func__,
 317                                 __FILE__, __LINE__);
 318                 goto end;
 319         }
 320
 321         for (i = 0; i < count; i++) {
 322                 int int_ret;
 323
 324                 event_class = bt_ctf_stream_class_get_event_class_by_index(
 325                                 stream_class, i);
 326                 if (!event_class) {
 327                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 328                                         __FILE__, __LINE__);
 329                         ret = BT_COMPONENT_STATUS_ERROR;
 330                         goto error;
 331                 }
 332                 if (i < bt_ctf_stream_class_get_event_class_count(writer_stream_class)) {
 333                         writer_event_class = bt_ctf_stream_class_get_event_class_by_index(
 334                                         writer_stream_class, i);
 335                         if (writer_event_class) {
 336                                 /*
 337                                  * If the writer_event_class already exists,
 338                                  * just skip it. It can be used to resync the
 339                                  * event_classes after a trace has become
 340                                  * static.
 341                                  */
 342                                 BT_PUT(writer_event_class);
 343                                 BT_PUT(event_class);
 344                                 continue;
 345                         }
 346                 }
 347
 348                 writer_event_class = ctf_copy_event_class(err, event_class);
 349                 if (!writer_event_class) {
 350                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 351                                         __FILE__, __LINE__);
 352                         ret = BT_COMPONENT_STATUS_ERROR;
 353                         goto error;
 354                 }
 355
 356                 int_ret = bt_ctf_stream_class_add_event_class(writer_stream_class,
 357                                 writer_event_class);
 358                 if (int_ret < 0) {
 359                         fprintf(err, "[error] Failed to add event class\n");
 360                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 361                                         __FILE__, __LINE__);
 362                         ret = BT_COMPONENT_STATUS_ERROR;
 363                         goto error;
 364                 }
 365                 BT_PUT(writer_event_class);
 366                 BT_PUT(event_class);
 367         }
 368
 369         goto end;
 370
 371 error:
 372         bt_put(event_class);
 373         bt_put(writer_event_class);
 374 end:
 375         return ret;
 376 }
 377
 378 BT_HIDDEN
 379 struct bt_ctf_stream_class *ctf_copy_stream_class(FILE *err,
 380                 struct bt_ctf_stream_class *stream_class,
 381                 struct bt_ctf_trace *writer_trace,
 382                 bool override_ts64)
 383 {
 384         struct bt_ctf_field_type *type = NULL;
 385         struct bt_ctf_stream_class *writer_stream_class = NULL;
 386         int ret_int;
 387         const char *name = bt_ctf_stream_class_get_name(stream_class);
 388
 389         if (strlen(name) == 0) {
 390                 name = NULL;
 391         }
 392
 393         writer_stream_class = bt_ctf_stream_class_create_empty(name);
 394         if (!writer_stream_class) {
 395                 fprintf(err, "[error] %s in %s:%d\n",
 396                                 __func__, __FILE__, __LINE__);
 397                 goto end;
 398         }
 399
 400         type = bt_ctf_stream_class_get_packet_context_type(stream_class);
 401         if (type) {
 402                 ret_int = bt_ctf_stream_class_set_packet_context_type(
 403                                 writer_stream_class, type);
 404                 if (ret_int < 0) {
 405                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 406                                         __FILE__, __LINE__);
 407                         goto error;
 408                 }
 409                 BT_PUT(type);
 410         }
 411
 412         type = bt_ctf_stream_class_get_event_header_type(stream_class);
 413         if (type) {
 414                 if (override_ts64) {
 415                         struct bt_ctf_field_type *new_event_header_type;
 416
 417                         new_event_header_type = override_header_type(err, type,
 418                                         writer_trace);
 419                         if (!new_event_header_type) {
 420                                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 421                                                 __LINE__);
 422                                 goto error;
 423                         }
 424                         ret_int = bt_ctf_stream_class_set_event_header_type(
 425                                         writer_stream_class, new_event_header_type);
 426                         BT_PUT(new_event_header_type);
 427                         if (ret_int < 0) {
 428                                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 429                                                 __LINE__);
 430                                 goto error;
 431                         }
 432                 } else {
 433                         ret_int = bt_ctf_stream_class_set_event_header_type(
 434                                         writer_stream_class, type);
 435                         if (ret_int < 0) {
 436                                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 437                                                 __LINE__);
 438                                 goto error;
 439                         }
 440                 }
 441                 BT_PUT(type);
 442         }
 443
 444         type = bt_ctf_stream_class_get_event_context_type(stream_class);
 445         if (type) {
 446                 ret_int = bt_ctf_stream_class_set_event_context_type(
 447                                 writer_stream_class, type);
 448                 if (ret_int < 0) {
 449                         fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 450                                         __LINE__);
 451                         goto error;
 452                 }
 453         }
 454         BT_PUT(type);
 455
 456         goto end;
 457
 458 error:
 459         BT_PUT(writer_stream_class);
 460 end:
 461         bt_put(type);
 462         return writer_stream_class;
 463 }
 464
 465 BT_HIDDEN
 466 int ctf_stream_copy_packet_header(FILE *err, struct bt_ctf_packet *packet,
 467                 struct bt_ctf_stream *writer_stream)
 468 {
 469         struct bt_ctf_field *packet_header = NULL, *writer_packet_header = NULL;
 470         int ret = 0;
 471
 472         packet_header = bt_ctf_packet_get_header(packet);
 473         if (!packet_header) {
 474                 goto end;
 475         }
 476
 477         writer_packet_header = bt_ctf_field_copy(packet_header);
 478         if (!writer_packet_header) {
 479                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 480                                 __LINE__);
 481                 goto error;
 482         }
 483
 484         ret = bt_ctf_stream_set_packet_header(writer_stream,
 485                         writer_packet_header);
 486         if (ret) {
 487                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 488                                 __LINE__);
 489                 goto error;
 490         }
 491
 492         goto end;
 493
 494 error:
 495         ret = -1;
 496 end:
 497         bt_put(writer_packet_header);
 498         bt_put(packet_header);
 499         return ret;
 500 }
 501
 502 BT_HIDDEN
 503 int ctf_packet_copy_header(FILE *err, struct bt_ctf_packet *packet,
 504                 struct bt_ctf_packet *writer_packet)
 505 {
 506         struct bt_ctf_field *packet_header = NULL, *writer_packet_header = NULL;
 507         int ret = 0;
 508
 509         packet_header = bt_ctf_packet_get_header(packet);
 510         if (!packet_header) {
 511                 goto end;
 512         }
 513
 514         writer_packet_header = bt_ctf_field_copy(packet_header);
 515         if (!writer_packet_header) {
 516                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 517                                 __LINE__);
 518                 goto error;
 519         }
 520
 521         ret = bt_ctf_packet_set_header(writer_packet, writer_packet_header);
 522         if (ret) {
 523                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 524                                 __LINE__);
 525                 goto error;
 526         }
 527
 528         goto end;
 529
 530 error:
 531         ret = -1;
 532 end:
 533         bt_put(packet_header);
 534         bt_put(writer_packet_header);
 535         return ret;
 536 }
 537
 538 BT_HIDDEN
 539 int ctf_stream_copy_packet_context(FILE *err, struct bt_ctf_packet *packet,
 540                 struct bt_ctf_stream *writer_stream)
 541 {
 542         struct bt_ctf_field *packet_context = NULL, *writer_packet_context = NULL;
 543         int ret = 0;
 544
 545         packet_context = bt_ctf_packet_get_context(packet);
 546         if (!packet_context) {
 547                 goto end;
 548         }
 549
 550         writer_packet_context = bt_ctf_field_copy(packet_context);
 551         if (!writer_packet_context) {
 552                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 553                                 __LINE__);
 554                 goto error;
 555         }
 556
 557         ret = bt_ctf_stream_set_packet_context(writer_stream,
 558                         writer_packet_context);
 559         if (ret) {
 560                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 561                                 __LINE__);
 562                 goto error;
 563         }
 564
 565         goto end;
 566
 567 error:
 568         ret = -1;
 569 end:
 570         bt_put(packet_context);
 571         bt_put(writer_packet_context);
 572         return ret;
 573 }
 574
 575 BT_HIDDEN
 576 int ctf_packet_copy_context(FILE *err, struct bt_ctf_packet *packet,
 577                 struct bt_ctf_stream *writer_stream,
 578                 struct bt_ctf_packet *writer_packet)
 579 {
 580         struct bt_ctf_field *packet_context = NULL, *writer_packet_context = NULL;
 581         int ret = 0;
 582
 583         packet_context = bt_ctf_packet_get_context(packet);
 584         if (!packet_context) {
 585                 goto end;
 586         }
 587
 588         writer_packet_context = bt_ctf_field_copy(packet_context);
 589         if (!writer_packet_context) {
 590                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 591                                 __LINE__);
 592                 goto error;
 593         }
 594
 595         ret = bt_ctf_packet_set_context(writer_packet, writer_packet_context);
 596         if (ret) {
 597                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 598                                 __LINE__);
 599                 goto error;
 600         }
 601
 602         goto end;
 603
 604 error:
 605         ret = -1;
 606 end:
 607         bt_put(writer_packet_context);
 608         bt_put(packet_context);
 609         return ret;
 610 }
 611
 612 BT_HIDDEN
 613 int ctf_copy_event_header(FILE *err, struct bt_ctf_event *event,
 614                 struct bt_ctf_event_class *writer_event_class,
 615                 struct bt_ctf_event *writer_event,
 616                 struct bt_ctf_field *event_header)
 617 {
 618         struct bt_ctf_clock_class *clock_class = NULL, *writer_clock_class = NULL;
 619         struct bt_ctf_clock_value *clock_value = NULL, *writer_clock_value = NULL;
 620
 621         int ret;
 622         struct bt_ctf_field *writer_event_header = NULL;
 623         uint64_t value;
 624
 625         clock_class = event_get_clock_class(err, event);
 626         if (!clock_class) {
 627                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 628                                 __LINE__);
 629                 goto error;
 630         }
 631
 632         clock_value = bt_ctf_event_get_clock_value(event, clock_class);
 633         BT_PUT(clock_class);
 634         if (!clock_value) {
 635                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 636                                 __LINE__);
 637                 goto error;
 638         }
 639
 640         ret = bt_ctf_clock_value_get_value(clock_value, &value);
 641         BT_PUT(clock_value);
 642         if (ret) {
 643                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 644                                 __LINE__);
 645                 goto error;
 646         }
 647
 648         writer_clock_class = event_get_clock_class(err, writer_event);
 649         if (!writer_clock_class) {
 650                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 651                                 __LINE__);
 652                 goto error;
 653         }
 654
 655         writer_clock_value = bt_ctf_clock_value_create(writer_clock_class, value);
 656         BT_PUT(writer_clock_class);
 657         if (!writer_clock_value) {
 658                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 659                                 __LINE__);
 660                 goto error;
 661         }
 662
 663         ret = bt_ctf_event_set_clock_value(writer_event, writer_clock_value);
 664         BT_PUT(writer_clock_value);
 665         if (ret) {
 666                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 667                                 __LINE__);
 668                 goto error;
 669         }
 670
 671         writer_event_header = bt_ctf_field_copy(event_header);
 672         if (!writer_event_header) {
 673                 fprintf(err, "[error] %s in %s:%d\n", __func__,
 674                                 __FILE__, __LINE__);
 675                 goto end;
 676         }
 677
 678         ret = bt_ctf_event_set_header(writer_event, writer_event_header);
 679         BT_PUT(writer_event_header);
 680         if (ret < 0) {
 681                 fprintf(err, "[error] %s in %s:%d\n", __func__,
 682                                 __FILE__, __LINE__);
 683                 goto error;
 684         }
 685
 686         ret = 0;
 687
 688         goto end;
 689
 690 error:
 691         ret = -1;
 692 end:
 693         return ret;
 694 }
 695
 696 BT_HIDDEN
 697 struct bt_ctf_event *ctf_copy_event(FILE *err, struct bt_ctf_event *event,
 698                 struct bt_ctf_event_class *writer_event_class,
 699                 bool override_ts64)
 700 {
 701         struct bt_ctf_event *writer_event = NULL;
 702         struct bt_ctf_field *field = NULL, *copy_field = NULL;
 703         int ret;
 704
 705         writer_event = bt_ctf_event_create(writer_event_class);
 706         if (!writer_event) {
 707                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 708                                 __LINE__);
 709                 goto end;
 710         }
 711
 712         field = bt_ctf_event_get_header(event);
 713         if (field) {
 714                 /*
 715                  * If override_ts64, we override all integer fields mapped to a clock
 716                  * to a uint64_t field type, otherwise, we just copy it as is.
 717                  */
 718                 if (override_ts64) {
 719                         copy_field = bt_ctf_event_get_header(writer_event);
 720                         if (!copy_field) {
 721                                 fprintf(err, "[error] %s in %s:%d\n", __func__,
 722                                                 __FILE__, __LINE__);
 723                                 goto error;
 724                         }
 725
 726                         ret = copy_override_field(err, event, writer_event, field,
 727                                         copy_field);
 728                         if (ret) {
 729                                 fprintf(err, "[error] %s in %s:%d\n", __func__,
 730                                                 __FILE__, __LINE__);
 731                                 goto error;
 732                         }
 733                         BT_PUT(copy_field);
 734                 } else {
 735                         ret = ctf_copy_event_header(err, event, writer_event_class,
 736                                         writer_event, field);
 737                         if (ret) {
 738                                 fprintf(err, "[error] %s in %s:%d\n", __func__,
 739                                                 __FILE__, __LINE__);
 740                                 goto error;
 741                         }
 742                 }
 743                 BT_PUT(field);
 744         }
 745
 746         /* Optional field, so it can fail silently. */
 747         field = bt_ctf_event_get_stream_event_context(event);
 748         if (field) {
 749                 copy_field = bt_ctf_field_copy(field);
 750                 if (!copy_field) {
 751                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 752                                         __FILE__, __LINE__);
 753                         goto error;
 754                 }
 755                 ret = bt_ctf_event_set_stream_event_context(writer_event,
 756                                 copy_field);
 757                 if (ret < 0) {
 758                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 759                                         __FILE__, __LINE__);
 760                         goto error;
 761                 }
 762                 BT_PUT(field);
 763                 BT_PUT(copy_field);
 764         }
 765
 766         /* Optional field, so it can fail silently. */
 767         field = bt_ctf_event_get_event_context(event);
 768         if (field) {
 769                 copy_field = bt_ctf_field_copy(field);
 770                 if (!copy_field) {
 771                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 772                                         __FILE__, __LINE__);
 773                         goto error;
 774                 }
 775                 ret = bt_ctf_event_set_event_context(writer_event, copy_field);
 776                 if (ret < 0) {
 777                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 778                                         __FILE__, __LINE__);
 779                         goto error;
 780                 }
 781                 BT_PUT(field);
 782                 BT_PUT(copy_field);
 783         }
 784
 785         field = bt_ctf_event_get_event_payload(event);
 786         if (field) {
 787                 copy_field = bt_ctf_field_copy(field);
 788                 if (!copy_field) {
 789                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 790                                         __FILE__, __LINE__);
 791                         goto error;
 792                 }
 793                 ret = bt_ctf_event_set_event_payload(writer_event, copy_field);
 794                 if (ret < 0) {
 795                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 796                                         __FILE__, __LINE__);
 797                         goto error;
 798                 }
 799                 BT_PUT(field);
 800                 BT_PUT(copy_field);
 801         }
 802
 803         goto end;
 804
 805 error:
 806         BT_PUT(writer_event);
 807 end:
 808         bt_put(field);
 809         bt_put(copy_field);
 810         return writer_event;
 811 }
 812
 813 BT_HIDDEN
 814 enum bt_component_status ctf_copy_trace(FILE *err, struct bt_ctf_trace *trace,
 815                 struct bt_ctf_trace *writer_trace)
 816 {
 817         enum bt_component_status ret = BT_COMPONENT_STATUS_OK;
 818         int field_count, i, int_ret;
 819         struct bt_ctf_field_type *header_type = NULL;
 820         enum bt_ctf_byte_order order;
 821         const char *trace_name;
 822
 823         field_count = bt_ctf_trace_get_environment_field_count(trace);
 824         for (i = 0; i < field_count; i++) {
 825                 int ret_int;
 826                 const char *name;
 827                 struct bt_value *value = NULL;
 828
 829                 name = bt_ctf_trace_get_environment_field_name_by_index(
 830                         trace, i);
 831                 if (!name) {
 832                         fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 833                                         __LINE__);
 834                         ret = BT_COMPONENT_STATUS_ERROR;
 835                         goto end;
 836                 }
 837                 value = bt_ctf_trace_get_environment_field_value_by_index(
 838                         trace, i);
 839                 if (!value) {
 840                         fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 841                                         __LINE__);
 842                         ret = BT_COMPONENT_STATUS_ERROR;
 843                         goto end;
 844                 }
 845
 846                 ret_int = bt_ctf_trace_set_environment_field(writer_trace,
 847                                 name, value);
 848                 BT_PUT(value);
 849                 if (ret_int < 0) {
 850                         fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 851                                         __LINE__);
 852                         fprintf(err, "[error] Unable to set environment field %s\n",
 853                                         name);
 854                         ret = BT_COMPONENT_STATUS_ERROR;
 855                         goto end;
 856                 }
 857         }
 858
 859         order = bt_ctf_trace_get_native_byte_order(trace);
 860         if (order == BT_CTF_BYTE_ORDER_UNKNOWN) {
 861                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__, __LINE__);
 862                 ret = BT_COMPONENT_STATUS_ERROR;
 863                 goto end;
 864         }
 865
 866         /*
 867          * Only explicitly set the writer trace's native byte order if
 868          * the original trace has a specific one. Otherwise leave what
 869          * the CTF writer object chooses, which is the machine's native
 870          * byte order.
 871          */
 872         if (order != BT_CTF_BYTE_ORDER_UNSPECIFIED) {
 873                 ret = bt_ctf_trace_set_native_byte_order(writer_trace, order);
 874                 if (ret) {
 875                         fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__, __LINE__);
 876                         ret = BT_COMPONENT_STATUS_ERROR;
 877                         goto end;
 878                 }
 879         }
 880
 881         header_type = bt_ctf_trace_get_packet_header_type(trace);
 882         if (header_type) {
 883                 int_ret = bt_ctf_trace_set_packet_header_type(writer_trace, header_type);
 884                 BT_PUT(header_type);
 885                 if (int_ret < 0) {
 886                         fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__, __LINE__);
 887                         ret = BT_COMPONENT_STATUS_ERROR;
 888                         goto end;
 889                 }
 890         }
 891
 892         trace_name = bt_ctf_trace_get_name(trace);
 893         if (trace_name) {
 894                 int_ret = bt_ctf_trace_set_name(writer_trace, trace_name);
 895                 if (int_ret < 0) {
 896                         fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__, __LINE__);
 897                         ret = BT_COMPONENT_STATUS_ERROR;
 898                         goto end;
 899                 }
 900         }
 901
 902 end:
 903         return ret;
 904 }