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                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 415                                 __LINE__);
 416                 goto error;
 417         }
 418
 419         if (override_ts64) {
 420                 struct bt_ctf_field_type *new_event_header_type;
 421
 422                 new_event_header_type = override_header_type(err, type,
 423                                 writer_trace);
 424                 if (!new_event_header_type) {
 425                         fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 426                                         __LINE__);
 427                         goto error;
 428                 }
 429                 ret_int = bt_ctf_stream_class_set_event_header_type(
 430                                 writer_stream_class, new_event_header_type);
 431                 BT_PUT(new_event_header_type);
 432                 if (ret_int < 0) {
 433                         fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 434                                         __LINE__);
 435                         goto error;
 436                 }
 437         } else {
 438                 ret_int = bt_ctf_stream_class_set_event_header_type(
 439                                 writer_stream_class, type);
 440                 if (ret_int < 0) {
 441                         fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 442                                         __LINE__);
 443                         goto error;
 444                 }
 445         }
 446         BT_PUT(type);
 447
 448         type = bt_ctf_stream_class_get_event_context_type(stream_class);
 449         if (type) {
 450                 ret_int = bt_ctf_stream_class_set_event_context_type(
 451                                 writer_stream_class, type);
 452                 if (ret_int < 0) {
 453                         fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 454                                         __LINE__);
 455                         goto error;
 456                 }
 457         }
 458         BT_PUT(type);
 459
 460         goto end;
 461
 462 error:
 463         BT_PUT(writer_stream_class);
 464 end:
 465         bt_put(type);
 466         return writer_stream_class;
 467 }
 468
 469 BT_HIDDEN
 470 int ctf_stream_copy_packet_context(FILE *err, struct bt_ctf_packet *packet,
 471                 struct bt_ctf_stream *writer_stream)
 472 {
 473         struct bt_ctf_field *packet_context = NULL, *writer_packet_context = NULL;
 474         int ret = 0;
 475
 476         packet_context = bt_ctf_packet_get_context(packet);
 477         if (!packet_context) {
 478                 goto end;
 479         }
 480
 481         writer_packet_context = bt_ctf_field_copy(packet_context);
 482         if (!writer_packet_context) {
 483                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 484                                 __LINE__);
 485                 goto error;
 486         }
 487
 488         ret = bt_ctf_stream_set_packet_context(writer_stream,
 489                         writer_packet_context);
 490         if (ret) {
 491                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 492                                 __LINE__);
 493                 goto error;
 494         }
 495
 496         goto end;
 497
 498 error:
 499         ret = -1;
 500 end:
 501         bt_put(packet_context);
 502         bt_put(writer_packet_context);
 503         return ret;
 504 }
 505
 506 BT_HIDDEN
 507 int ctf_packet_copy_context(FILE *err, struct bt_ctf_packet *packet,
 508                 struct bt_ctf_stream *writer_stream,
 509                 struct bt_ctf_packet *writer_packet)
 510 {
 511         struct bt_ctf_field *packet_context = NULL, *writer_packet_context = NULL;
 512         int ret = 0;
 513
 514         packet_context = bt_ctf_packet_get_context(packet);
 515         if (!packet_context) {
 516                 goto end;
 517         }
 518
 519         writer_packet_context = bt_ctf_field_copy(packet_context);
 520         if (!writer_packet_context) {
 521                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 522                                 __LINE__);
 523                 goto error;
 524         }
 525
 526         ret = bt_ctf_packet_set_context(writer_packet, writer_packet_context);
 527         if (ret) {
 528                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 529                                 __LINE__);
 530                 goto error;
 531         }
 532
 533         goto end;
 534
 535 error:
 536         ret = -1;
 537 end:
 538         bt_put(writer_packet_context);
 539         bt_put(packet_context);
 540         return ret;
 541 }
 542
 543 BT_HIDDEN
 544 int ctf_copy_event_header(FILE *err, struct bt_ctf_event *event,
 545                 struct bt_ctf_event_class *writer_event_class,
 546                 struct bt_ctf_event *writer_event,
 547                 struct bt_ctf_field *event_header)
 548 {
 549         struct bt_ctf_clock_class *clock_class = NULL, *writer_clock_class = NULL;
 550         struct bt_ctf_clock_value *clock_value = NULL, *writer_clock_value = NULL;
 551
 552         int ret;
 553         struct bt_ctf_field *writer_event_header = NULL;
 554         uint64_t value;
 555
 556         clock_class = event_get_clock_class(err, event);
 557         if (!clock_class) {
 558                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 559                                 __LINE__);
 560                 goto error;
 561         }
 562
 563         clock_value = bt_ctf_event_get_clock_value(event, clock_class);
 564         BT_PUT(clock_class);
 565         if (!clock_value) {
 566                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 567                                 __LINE__);
 568                 goto error;
 569         }
 570
 571         ret = bt_ctf_clock_value_get_value(clock_value, &value);
 572         BT_PUT(clock_value);
 573         if (ret) {
 574                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 575                                 __LINE__);
 576                 goto error;
 577         }
 578
 579         writer_clock_class = event_get_clock_class(err, writer_event);
 580         if (!writer_clock_class) {
 581                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 582                                 __LINE__);
 583                 goto error;
 584         }
 585
 586         writer_clock_value = bt_ctf_clock_value_create(writer_clock_class, value);
 587         BT_PUT(writer_clock_class);
 588         if (!writer_clock_value) {
 589                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 590                                 __LINE__);
 591                 goto error;
 592         }
 593
 594         ret = bt_ctf_event_set_clock_value(writer_event, writer_clock_value);
 595         BT_PUT(writer_clock_value);
 596         if (ret) {
 597                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 598                                 __LINE__);
 599                 goto error;
 600         }
 601
 602         writer_event_header = bt_ctf_field_copy(event_header);
 603         if (!writer_event_header) {
 604                 fprintf(err, "[error] %s in %s:%d\n", __func__,
 605                                 __FILE__, __LINE__);
 606                 goto end;
 607         }
 608
 609         ret = bt_ctf_event_set_header(writer_event, writer_event_header);
 610         BT_PUT(writer_event_header);
 611         if (ret < 0) {
 612                 fprintf(err, "[error] %s in %s:%d\n", __func__,
 613                                 __FILE__, __LINE__);
 614                 goto error;
 615         }
 616
 617         ret = 0;
 618
 619         goto end;
 620
 621 error:
 622         ret = -1;
 623 end:
 624         return ret;
 625 }
 626
 627 BT_HIDDEN
 628 struct bt_ctf_event *ctf_copy_event(FILE *err, struct bt_ctf_event *event,
 629                 struct bt_ctf_event_class *writer_event_class,
 630                 bool override_ts64)
 631 {
 632         struct bt_ctf_event *writer_event = NULL;
 633         struct bt_ctf_field *field = NULL, *copy_field = NULL;
 634         int ret;
 635
 636         writer_event = bt_ctf_event_create(writer_event_class);
 637         if (!writer_event) {
 638                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 639                                 __LINE__);
 640                 goto end;
 641         }
 642
 643         field = bt_ctf_event_get_header(event);
 644         if (!field) {
 645                 fprintf(err, "[error] %s in %s:%d\n", __func__,
 646                                 __FILE__, __LINE__);
 647                 goto error;
 648         }
 649
 650         /*
 651          * If override_ts64, we override all integer fields mapped to a clock
 652          * to a uint64_t field type, otherwise, we just copy it as is.
 653          */
 654         if (override_ts64) {
 655                 copy_field = bt_ctf_event_get_header(writer_event);
 656                 if (!copy_field) {
 657                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 658                                         __FILE__, __LINE__);
 659                         goto error;
 660                 }
 661
 662                 ret = copy_override_field(err, event, writer_event, field,
 663                                 copy_field);
 664                 if (ret) {
 665                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 666                                         __FILE__, __LINE__);
 667                         goto error;
 668                 }
 669                 BT_PUT(copy_field);
 670         } else {
 671                 ret = ctf_copy_event_header(err, event, writer_event_class,
 672                                 writer_event, field);
 673                 if (ret) {
 674                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 675                                         __FILE__, __LINE__);
 676                         goto error;
 677                 }
 678         }
 679         BT_PUT(field);
 680
 681         /* Optional field, so it can fail silently. */
 682         field = bt_ctf_event_get_stream_event_context(event);
 683         if (field) {
 684                 copy_field = bt_ctf_field_copy(field);
 685                 if (!copy_field) {
 686                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 687                                         __FILE__, __LINE__);
 688                         goto error;
 689                 }
 690                 ret = bt_ctf_event_set_stream_event_context(writer_event,
 691                                 copy_field);
 692                 if (ret < 0) {
 693                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 694                                         __FILE__, __LINE__);
 695                         goto error;
 696                 }
 697                 BT_PUT(field);
 698                 BT_PUT(copy_field);
 699         }
 700
 701         /* Optional field, so it can fail silently. */
 702         field = bt_ctf_event_get_event_context(event);
 703         if (field) {
 704                 copy_field = bt_ctf_field_copy(field);
 705                 if (!copy_field) {
 706                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 707                                         __FILE__, __LINE__);
 708                         goto error;
 709                 }
 710                 ret = bt_ctf_event_set_event_context(writer_event, copy_field);
 711                 if (ret < 0) {
 712                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 713                                         __FILE__, __LINE__);
 714                         goto error;
 715                 }
 716                 BT_PUT(field);
 717                 BT_PUT(copy_field);
 718         }
 719
 720         field = bt_ctf_event_get_event_payload(event);
 721         if (field) {
 722                 copy_field = bt_ctf_field_copy(field);
 723                 if (!copy_field) {
 724                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 725                                         __FILE__, __LINE__);
 726                         goto error;
 727                 }
 728                 ret = bt_ctf_event_set_event_payload(writer_event, copy_field);
 729                 if (ret < 0) {
 730                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 731                                         __FILE__, __LINE__);
 732                         goto error;
 733                 }
 734                 BT_PUT(field);
 735                 BT_PUT(copy_field);
 736         }
 737
 738         goto end;
 739
 740 error:
 741         BT_PUT(writer_event);
 742 end:
 743         bt_put(field);
 744         bt_put(copy_field);
 745         return writer_event;
 746 }
 747
 748 BT_HIDDEN
 749 enum bt_component_status ctf_copy_trace(FILE *err, struct bt_ctf_trace *trace,
 750                 struct bt_ctf_trace *writer_trace)
 751 {
 752         enum bt_component_status ret = BT_COMPONENT_STATUS_OK;
 753         int field_count, i, int_ret;
 754         struct bt_ctf_field_type *header_type = NULL;
 755         enum bt_ctf_byte_order order;
 756         const char *trace_name;
 757
 758         field_count = bt_ctf_trace_get_environment_field_count(trace);
 759         for (i = 0; i < field_count; i++) {
 760                 int ret_int;
 761                 const char *name;
 762                 struct bt_value *value = NULL;
 763
 764                 name = bt_ctf_trace_get_environment_field_name_by_index(
 765                         trace, i);
 766                 if (!name) {
 767                         fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 768                                         __LINE__);
 769                         ret = BT_COMPONENT_STATUS_ERROR;
 770                         goto end;
 771                 }
 772                 value = bt_ctf_trace_get_environment_field_value_by_index(
 773                         trace, i);
 774                 if (!value) {
 775                         fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 776                                         __LINE__);
 777                         ret = BT_COMPONENT_STATUS_ERROR;
 778                         goto end;
 779                 }
 780
 781                 ret_int = bt_ctf_trace_set_environment_field(writer_trace,
 782                                 name, value);
 783                 BT_PUT(value);
 784                 if (ret_int < 0) {
 785                         fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 786                                         __LINE__);
 787                         fprintf(err, "[error] Unable to set environment field %s\n",
 788                                         name);
 789                         ret = BT_COMPONENT_STATUS_ERROR;
 790                         goto end;
 791                 }
 792         }
 793
 794         order = bt_ctf_trace_get_native_byte_order(trace);
 795         if (order == BT_CTF_BYTE_ORDER_UNKNOWN) {
 796                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__, __LINE__);
 797                 ret = BT_COMPONENT_STATUS_ERROR;
 798                 goto end;
 799         }
 800
 801         /*
 802          * Only explicitly set the writer trace's native byte order if
 803          * the original trace has a specific one. Otherwise leave what
 804          * the CTF writer object chooses, which is the machine's native
 805          * byte order.
 806          */
 807         if (order != BT_CTF_BYTE_ORDER_UNSPECIFIED) {
 808                 ret = bt_ctf_trace_set_native_byte_order(writer_trace, order);
 809                 if (ret) {
 810                         fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__, __LINE__);
 811                         ret = BT_COMPONENT_STATUS_ERROR;
 812                         goto end;
 813                 }
 814         }
 815
 816         header_type = bt_ctf_trace_get_packet_header_type(writer_trace);
 817         if (header_type) {
 818                 int_ret = bt_ctf_trace_set_packet_header_type(writer_trace, header_type);
 819                 BT_PUT(header_type);
 820                 if (int_ret < 0) {
 821                         fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__, __LINE__);
 822                         ret = BT_COMPONENT_STATUS_ERROR;
 823                         goto end;
 824                 }
 825         }
 826
 827         trace_name = bt_ctf_trace_get_name(trace);
 828         if (trace_name) {
 829                 int_ret = bt_ctf_trace_set_name(writer_trace, trace_name);
 830                 if (int_ret < 0) {
 831                         fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__, __LINE__);
 832                         ret = BT_COMPONENT_STATUS_ERROR;
 833                         goto end;
 834                 }
 835         }
 836
 837 end:
 838         return ret;
 839 }