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 count, i, ret;
 216
 217         name = bt_ctf_event_class_get_name(event_class);
 218         if (!name) {
 219                 fprintf(err, "[error] %s in %s:%d\n", __func__,
 220                                 __FILE__, __LINE__);
 221                 goto end;
 222         }
 223
 224         writer_event_class = bt_ctf_event_class_create(name);
 225         if (!writer_event_class) {
 226                 fprintf(err, "[error] %s in %s:%d\n", __func__,
 227                                 __FILE__, __LINE__);
 228                 goto end;
 229         }
 230
 231         count = bt_ctf_event_class_get_attribute_count(event_class);
 232         for (i = 0; i < count; i++) {
 233                 const char *attr_name;
 234                 struct bt_value *attr_value;
 235                 int ret;
 236
 237                 attr_name = bt_ctf_event_class_get_attribute_name_by_index(
 238                         event_class, i);
 239                 if (!attr_name) {
 240                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 241                                         __FILE__, __LINE__);
 242                         goto error;
 243                 }
 244                 attr_value = bt_ctf_event_class_get_attribute_value_by_index(
 245                         event_class, i);
 246                 if (!attr_value) {
 247                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 248                                         __FILE__, __LINE__);
 249                         goto error;
 250                 }
 251
 252                 ret = bt_ctf_event_class_set_attribute(writer_event_class,
 253                                 attr_name, attr_value);
 254                 BT_PUT(attr_value);
 255                 if (ret < 0) {
 256                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 257                                         __FILE__, __LINE__);
 258                         goto error;
 259                 }
 260         }
 261
 262         payload_type = bt_ctf_event_class_get_payload_type(event_class);
 263         if (payload_type) {
 264                 ret = bt_ctf_event_class_set_payload_type(writer_event_class,
 265                                 payload_type);
 266                 if (ret < 0) {
 267                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 268                                         __FILE__, __LINE__);
 269                         goto error;
 270                 }
 271                 BT_PUT(payload_type);
 272         }
 273
 274         context = bt_ctf_event_class_get_context_type(event_class);
 275         if (context) {
 276                 ret = bt_ctf_event_class_set_context_type(
 277                                 writer_event_class, context);
 278                 BT_PUT(context);
 279                 if (ret < 0) {
 280                         fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 281                                         __LINE__);
 282                         goto error;
 283                 }
 284         }
 285
 286         goto end;
 287
 288 error:
 289         BT_PUT(writer_event_class);
 290 end:
 291         return writer_event_class;
 292 }
 293
 294 BT_HIDDEN
 295 enum bt_component_status ctf_copy_event_classes(FILE *err,
 296                 struct bt_ctf_stream_class *stream_class,
 297                 struct bt_ctf_stream_class *writer_stream_class)
 298 {
 299         enum bt_component_status ret = BT_COMPONENT_STATUS_OK;
 300         struct bt_ctf_event_class *event_class = NULL, *writer_event_class = NULL;
 301         int count, i;
 302
 303         count = bt_ctf_stream_class_get_event_class_count(stream_class);
 304         if (count < 0) {
 305                 fprintf(err, "[error] %s in %s:%d\n", __func__,
 306                                 __FILE__, __LINE__);
 307                 goto end;
 308         }
 309
 310         for (i = 0; i < count; i++) {
 311                 int int_ret;
 312
 313                 event_class = bt_ctf_stream_class_get_event_class_by_index(
 314                                 stream_class, i);
 315                 if (!event_class) {
 316                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 317                                         __FILE__, __LINE__);
 318                         ret = BT_COMPONENT_STATUS_ERROR;
 319                         goto error;
 320                 }
 321                 writer_event_class = ctf_copy_event_class(err, event_class);
 322                 if (!writer_event_class) {
 323                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 324                                         __FILE__, __LINE__);
 325                         ret = BT_COMPONENT_STATUS_ERROR;
 326                         goto error;
 327                 }
 328
 329                 int_ret = bt_ctf_stream_class_add_event_class(writer_stream_class,
 330                                 writer_event_class);
 331                 if (int_ret < 0) {
 332                         fprintf(err, "[error] Failed to add event class\n");
 333                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 334                                         __FILE__, __LINE__);
 335                         ret = BT_COMPONENT_STATUS_ERROR;
 336                         goto error;
 337                 }
 338                 BT_PUT(writer_event_class);
 339                 BT_PUT(event_class);
 340         }
 341
 342         goto end;
 343
 344 error:
 345         bt_put(event_class);
 346         bt_put(writer_event_class);
 347 end:
 348         return ret;
 349 }
 350
 351 BT_HIDDEN
 352 struct bt_ctf_stream_class *ctf_copy_stream_class(FILE *err,
 353                 struct bt_ctf_stream_class *stream_class,
 354                 struct bt_ctf_trace *writer_trace,
 355                 bool override_ts64)
 356 {
 357         struct bt_ctf_field_type *type = NULL;
 358         struct bt_ctf_stream_class *writer_stream_class = NULL;
 359         int ret_int;
 360         const char *name = bt_ctf_stream_class_get_name(stream_class);
 361
 362         if (strlen(name) == 0) {
 363                 name = NULL;
 364         }
 365
 366         writer_stream_class = bt_ctf_stream_class_create(name);
 367         if (!writer_stream_class) {
 368                 fprintf(err, "[error] %s in %s:%d\n",
 369                                 __func__, __FILE__, __LINE__);
 370                 goto end;
 371         }
 372
 373         type = bt_ctf_stream_class_get_packet_context_type(stream_class);
 374         if (!type) {
 375                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 376                                 __LINE__);
 377                 goto error;
 378         }
 379
 380         ret_int = bt_ctf_stream_class_set_packet_context_type(
 381                         writer_stream_class, type);
 382         if (ret_int < 0) {
 383                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 384                                 __LINE__);
 385                 goto error;
 386         }
 387         BT_PUT(type);
 388
 389         type = bt_ctf_stream_class_get_event_header_type(stream_class);
 390         if (!type) {
 391                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 392                                 __LINE__);
 393                 goto error;
 394         }
 395
 396         if (override_ts64) {
 397                 struct bt_ctf_field_type *new_event_header_type;
 398
 399                 new_event_header_type = override_header_type(err, type,
 400                                 writer_trace);
 401                 if (!new_event_header_type) {
 402                         fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 403                                         __LINE__);
 404                         goto error;
 405                 }
 406                 ret_int = bt_ctf_stream_class_set_event_header_type(
 407                                 writer_stream_class, new_event_header_type);
 408                 BT_PUT(new_event_header_type);
 409                 if (ret_int < 0) {
 410                         fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 411                                         __LINE__);
 412                         goto error;
 413                 }
 414         } else {
 415                 ret_int = bt_ctf_stream_class_set_event_header_type(
 416                                 writer_stream_class, type);
 417                 if (ret_int < 0) {
 418                         fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 419                                         __LINE__);
 420                         goto error;
 421                 }
 422         }
 423         BT_PUT(type);
 424
 425         type = bt_ctf_stream_class_get_event_context_type(stream_class);
 426         if (type) {
 427                 ret_int = bt_ctf_stream_class_set_event_context_type(
 428                                 writer_stream_class, type);
 429                 if (ret_int < 0) {
 430                         fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 431                                         __LINE__);
 432                         goto error;
 433                 }
 434         }
 435         BT_PUT(type);
 436
 437         goto end;
 438
 439 error:
 440         BT_PUT(writer_stream_class);
 441 end:
 442         bt_put(type);
 443         return writer_stream_class;
 444 }
 445
 446 BT_HIDDEN
 447 enum bt_component_status ctf_copy_packet_context_field(FILE *err,
 448                 struct bt_ctf_field *field, const char *field_name,
 449                 struct bt_ctf_field *writer_packet_context,
 450                 struct bt_ctf_field_type *writer_packet_context_type)
 451 {
 452         enum bt_component_status ret;
 453         struct bt_ctf_field *writer_field = NULL;
 454         struct bt_ctf_field_type *field_type = NULL;
 455         int int_ret;
 456         uint64_t value;
 457
 458         field_type = bt_ctf_field_get_type(field);
 459         if (!field_type) {
 460                 ret = BT_COMPONENT_STATUS_ERROR;
 461                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 462                                 __LINE__);
 463                 goto end;
 464         }
 465         /*
 466          * Only support for integers for now.
 467          */
 468         if (bt_ctf_field_type_get_type_id(field_type) != BT_CTF_FIELD_TYPE_ID_INTEGER) {
 469                 fprintf(err, "[error] Unsupported packet context field type\n");
 470                 ret = BT_COMPONENT_STATUS_ERROR;
 471                 goto error;
 472         }
 473         BT_PUT(field_type);
 474
 475         writer_field = bt_ctf_field_structure_get_field_by_name(
 476                 writer_packet_context, field_name);
 477         if (!writer_field) {
 478                 ret = BT_COMPONENT_STATUS_ERROR;
 479                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 480                                 __LINE__);
 481                 goto end;
 482         }
 483
 484         int_ret = bt_ctf_field_unsigned_integer_get_value(field, &value);
 485         if (int_ret < 0) {
 486                 fprintf(err, "[error] Wrong packet_context field type\n");
 487                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 488                                 __LINE__);
 489                 ret = BT_COMPONENT_STATUS_ERROR;
 490                 goto end;
 491         }
 492
 493         int_ret = bt_ctf_field_unsigned_integer_set_value(writer_field, value);
 494         if (int_ret < 0) {
 495                 ret = BT_COMPONENT_STATUS_ERROR;
 496                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 497                                 __LINE__);
 498                 goto end;
 499         }
 500
 501         ret = BT_COMPONENT_STATUS_OK;
 502
 503         goto end;
 504
 505 error:
 506         bt_put(field_type);
 507 end:
 508         bt_put(writer_field);
 509         return ret;
 510 }
 511
 512 BT_HIDDEN
 513 struct bt_ctf_field *ctf_copy_packet_context(FILE *err,
 514                 struct bt_ctf_packet *packet,
 515                 struct bt_ctf_stream *writer_stream,
 516                 int skip_content_size)
 517 {
 518         enum bt_component_status ret;
 519         struct bt_ctf_field *packet_context = NULL, *writer_packet_context = NULL;
 520         struct bt_ctf_field_type *struct_type = NULL, *writer_packet_context_type = NULL;
 521         struct bt_ctf_stream_class *writer_stream_class = NULL;
 522         struct bt_ctf_field *field = NULL;
 523         struct bt_ctf_field_type *field_type = NULL;
 524         int nr_fields, i;
 525
 526         packet_context = bt_ctf_packet_get_context(packet);
 527         if (!packet_context) {
 528                 goto end;
 529         }
 530
 531         writer_stream_class = bt_ctf_stream_get_class(writer_stream);
 532         if (!writer_stream_class) {
 533                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 534                                 __LINE__);
 535                 goto error;
 536         }
 537
 538         writer_packet_context_type = bt_ctf_stream_class_get_packet_context_type(
 539                         writer_stream_class);
 540         BT_PUT(writer_stream_class);
 541         if (!writer_packet_context_type) {
 542                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 543                                 __LINE__);
 544                 goto error;
 545         }
 546
 547         struct_type = bt_ctf_field_get_type(packet_context);
 548         if (!struct_type) {
 549                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 550                                 __LINE__);
 551                 goto error;
 552         }
 553
 554         writer_packet_context = bt_ctf_field_create(writer_packet_context_type);
 555         if (!writer_packet_context) {
 556                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 557                                 __LINE__);
 558                 goto error;
 559         }
 560
 561         nr_fields = bt_ctf_field_type_structure_get_field_count(struct_type);
 562         for (i = 0; i < nr_fields; i++) {
 563                 const char *field_name;
 564
 565                 field = bt_ctf_field_structure_get_field_by_index(
 566                                 packet_context, i);
 567                 if (!field) {
 568                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 569                                         __FILE__, __LINE__);
 570                         goto error;
 571                 }
 572                 if (bt_ctf_field_type_structure_get_field_by_index(struct_type,
 573                                         &field_name, &field_type, i) < 0) {
 574                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 575                                         __FILE__, __LINE__);
 576                         goto error;
 577                 }
 578                 if (skip_content_size &&
 579                                 (!strncmp(field_name, "content_size", strlen("content_size")) ||
 580                                 !strncmp(field_name, "packet_size", strlen("packet_size")))) {
 581                         BT_PUT(field_type);
 582                         BT_PUT(field);
 583                         continue;
 584                 }
 585
 586                 if (bt_ctf_field_type_get_type_id(field_type) != BT_CTF_FIELD_TYPE_ID_INTEGER) {
 587                         fprintf(err, "[error] Unexpected packet context field type\n");
 588                         goto error;
 589                 }
 590
 591                 ret = ctf_copy_packet_context_field(err, field, field_name,
 592                                 writer_packet_context, writer_packet_context_type);
 593                 BT_PUT(field_type);
 594                 BT_PUT(field);
 595                 if (ret != BT_COMPONENT_STATUS_OK) {
 596                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 597                                         __FILE__, __LINE__);
 598                         goto error;
 599                 }
 600         }
 601
 602         goto end;
 603
 604 error:
 605         BT_PUT(writer_packet_context);
 606 end:
 607         bt_put(field);
 608         bt_put(field_type);
 609         bt_put(struct_type);
 610         bt_put(writer_packet_context_type);
 611         bt_put(writer_stream_class);
 612         bt_put(packet_context);
 613         return writer_packet_context;
 614 }
 615
 616 BT_HIDDEN
 617 int ctf_copy_event_header(FILE *err, struct bt_ctf_event *event,
 618                 struct bt_ctf_event_class *writer_event_class,
 619                 struct bt_ctf_event *writer_event,
 620                 struct bt_ctf_field *event_header)
 621 {
 622         struct bt_ctf_clock_class *clock_class = NULL, *writer_clock_class = NULL;
 623         struct bt_ctf_clock_value *clock_value = NULL, *writer_clock_value = NULL;
 624
 625         int ret;
 626         struct bt_ctf_field *writer_event_header = NULL;
 627         uint64_t value;
 628
 629         clock_class = event_get_clock_class(err, event);
 630         if (!clock_class) {
 631                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 632                                 __LINE__);
 633                 goto error;
 634         }
 635
 636         clock_value = bt_ctf_event_get_clock_value(event, clock_class);
 637         BT_PUT(clock_class);
 638         if (!clock_value) {
 639                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 640                                 __LINE__);
 641                 goto error;
 642         }
 643
 644         ret = bt_ctf_clock_value_get_value(clock_value, &value);
 645         BT_PUT(clock_value);
 646         if (ret) {
 647                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 648                                 __LINE__);
 649                 goto error;
 650         }
 651
 652         writer_clock_class = event_get_clock_class(err, writer_event);
 653         if (!writer_clock_class) {
 654                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 655                                 __LINE__);
 656                 goto error;
 657         }
 658
 659         writer_clock_value = bt_ctf_clock_value_create(writer_clock_class, value);
 660         BT_PUT(writer_clock_class);
 661         if (!writer_clock_value) {
 662                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 663                                 __LINE__);
 664                 goto error;
 665         }
 666
 667         ret = bt_ctf_event_set_clock_value(writer_event, writer_clock_value);
 668         BT_PUT(writer_clock_value);
 669         if (ret) {
 670                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 671                                 __LINE__);
 672                 goto error;
 673         }
 674
 675         writer_event_header = bt_ctf_field_copy(event_header);
 676         if (!writer_event_header) {
 677                 fprintf(err, "[error] %s in %s:%d\n", __func__,
 678                                 __FILE__, __LINE__);
 679                 goto end;
 680         }
 681
 682         ret = bt_ctf_event_set_header(writer_event, writer_event_header);
 683         BT_PUT(writer_event_header);
 684         if (ret < 0) {
 685                 fprintf(err, "[error] %s in %s:%d\n", __func__,
 686                                 __FILE__, __LINE__);
 687                 goto error;
 688         }
 689
 690         ret = 0;
 691
 692         goto end;
 693
 694 error:
 695         ret = -1;
 696 end:
 697         return ret;
 698 }
 699
 700 BT_HIDDEN
 701 struct bt_ctf_event *ctf_copy_event(FILE *err, struct bt_ctf_event *event,
 702                 struct bt_ctf_event_class *writer_event_class,
 703                 bool override_ts64)
 704 {
 705         struct bt_ctf_event *writer_event = NULL;
 706         struct bt_ctf_field *field = NULL, *copy_field = NULL;
 707         int ret;
 708
 709         writer_event = bt_ctf_event_create(writer_event_class);
 710         if (!writer_event) {
 711                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 712                                 __LINE__);
 713                 goto end;
 714         }
 715
 716         field = bt_ctf_event_get_header(event);
 717         if (!field) {
 718                 fprintf(err, "[error] %s in %s:%d\n", __func__,
 719                                 __FILE__, __LINE__);
 720                 goto error;
 721         }
 722
 723         /*
 724          * If override_ts64, we override all integer fields mapped to a clock
 725          * to a uint64_t field type, otherwise, we just copy it as is.
 726          */
 727         if (override_ts64) {
 728                 copy_field = bt_ctf_event_get_header(writer_event);
 729                 if (!copy_field) {
 730                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 731                                         __FILE__, __LINE__);
 732                         goto error;
 733                 }
 734
 735                 ret = copy_override_field(err, event, writer_event, field,
 736                                 copy_field);
 737                 if (ret) {
 738                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 739                                         __FILE__, __LINE__);
 740                         goto error;
 741                 }
 742                 BT_PUT(copy_field);
 743         } else {
 744                 ret = ctf_copy_event_header(err, event, writer_event_class,
 745                                 writer_event, field);
 746                 if (ret) {
 747                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 748                                         __FILE__, __LINE__);
 749                         goto error;
 750                 }
 751         }
 752         BT_PUT(field);
 753
 754         /* Optional field, so it can fail silently. */
 755         field = bt_ctf_event_get_stream_event_context(event);
 756         copy_field = bt_ctf_field_copy(field);
 757         if (copy_field) {
 758                 ret = bt_ctf_event_set_stream_event_context(writer_event,
 759                                 copy_field);
 760                 if (ret < 0) {
 761                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 762                                         __FILE__, __LINE__);
 763                         goto error;
 764                 }
 765         }
 766         BT_PUT(field);
 767         BT_PUT(copy_field);
 768
 769         /* Optional field, so it can fail silently. */
 770         field = bt_ctf_event_get_event_context(event);
 771         copy_field = bt_ctf_field_copy(field);
 772         if (copy_field) {
 773                 ret = bt_ctf_event_set_event_context(writer_event, copy_field);
 774                 if (ret < 0) {
 775                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 776                                         __FILE__, __LINE__);
 777                         goto error;
 778                 }
 779         }
 780         BT_PUT(field);
 781         BT_PUT(copy_field);
 782
 783         field = bt_ctf_event_get_event_payload(event);
 784         if (!field) {
 785                 fprintf(err, "[error] %s in %s:%d\n", __func__,
 786                                 __FILE__, __LINE__);
 787                 goto error;
 788         }
 789         copy_field = bt_ctf_field_copy(field);
 790         if (copy_field) {
 791                 ret = bt_ctf_event_set_event_payload(writer_event, copy_field);
 792                 if (ret < 0) {
 793                         fprintf(err, "[error] %s in %s:%d\n", __func__,
 794                                         __FILE__, __LINE__);
 795                         goto error;
 796                 }
 797         }
 798         BT_PUT(field);
 799         BT_PUT(copy_field);
 800
 801         goto end;
 802
 803 error:
 804         BT_PUT(writer_event);
 805 end:
 806         bt_put(field);
 807         bt_put(copy_field);
 808         return writer_event;
 809 }
 810
 811 BT_HIDDEN
 812 enum bt_component_status ctf_copy_trace(FILE *err, struct bt_ctf_trace *trace,
 813                 struct bt_ctf_trace *writer_trace)
 814 {
 815         enum bt_component_status ret = BT_COMPONENT_STATUS_OK;
 816         int field_count, i, int_ret;
 817         struct bt_ctf_field_type *header_type = NULL;
 818         enum bt_ctf_byte_order order;
 819
 820         field_count = bt_ctf_trace_get_environment_field_count(trace);
 821         for (i = 0; i < field_count; i++) {
 822                 int ret_int;
 823                 const char *name;
 824                 struct bt_value *value = NULL;
 825
 826                 name = bt_ctf_trace_get_environment_field_name_by_index(
 827                         trace, i);
 828                 if (!name) {
 829                         fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 830                                         __LINE__);
 831                         ret = BT_COMPONENT_STATUS_ERROR;
 832                         goto end;
 833                 }
 834                 value = bt_ctf_trace_get_environment_field_value_by_index(
 835                         trace, i);
 836                 if (!value) {
 837                         fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 838                                         __LINE__);
 839                         ret = BT_COMPONENT_STATUS_ERROR;
 840                         goto end;
 841                 }
 842
 843                 ret_int = bt_ctf_trace_set_environment_field(writer_trace,
 844                                 name, value);
 845                 BT_PUT(value);
 846                 if (ret_int < 0) {
 847                         fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__,
 848                                         __LINE__);
 849                         fprintf(err, "[error] Unable to set environment field %s\n",
 850                                         name);
 851                         ret = BT_COMPONENT_STATUS_ERROR;
 852                         goto end;
 853                 }
 854         }
 855
 856         order = bt_ctf_trace_get_native_byte_order(trace);
 857         if (order == BT_CTF_BYTE_ORDER_UNKNOWN) {
 858                 fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__, __LINE__);
 859                 ret = BT_COMPONENT_STATUS_ERROR;
 860                 goto end;
 861         }
 862
 863         /*
 864          * Only explicitly set the writer trace's native byte order if
 865          * the original trace has a specific one. Otherwise leave what
 866          * the CTF writer object chooses, which is the machine's native
 867          * byte order.
 868          */
 869         if (order != BT_CTF_BYTE_ORDER_NONE) {
 870                 ret = bt_ctf_trace_set_native_byte_order(writer_trace, order);
 871                 if (ret) {
 872                         fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__, __LINE__);
 873                         ret = BT_COMPONENT_STATUS_ERROR;
 874                         goto end;
 875                 }
 876         }
 877
 878         header_type = bt_ctf_trace_get_packet_header_type(writer_trace);
 879         if (header_type) {
 880                 int_ret = bt_ctf_trace_set_packet_header_type(writer_trace, header_type);
 881                 BT_PUT(header_type);
 882                 if (int_ret < 0) {
 883                         fprintf(err, "[error] %s in %s:%d\n", __func__, __FILE__, __LINE__);
 884                         ret = BT_COMPONENT_STATUS_ERROR;
 885                         goto end;
 886                 }
 887         }
 888
 889 end:
 890         return ret;
 891 }