lib/trace-ir/stream-class.c

   1 /*
   2  * Copyright 2013, 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com>
   3  *
   4  * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a copy
   7  * of this software and associated documentation files (the "Software"), to deal
   8  * in the Software without restriction, including without limitation the rights
   9  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  10  * copies of the Software, and to permit persons to whom the Software is
  11  * furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  19  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  */
  24
  25 #define BT_LOG_TAG "STREAM-CLASS"
  26 #include <babeltrace/lib-logging-internal.h>
  27
  28 #include <babeltrace/assert-pre-internal.h>
  29 #include <babeltrace/trace-ir/clock-class-internal.h>
  30 #include <babeltrace/trace-ir/event-class-internal.h>
  31 #include <babeltrace/trace-ir/field-classes-internal.h>
  32 #include <babeltrace/trace-ir/fields-internal.h>
  33 #include <babeltrace/trace-ir/stream-class-internal.h>
  34 #include <babeltrace/trace-ir/trace-const.h>
  35 #include <babeltrace/trace-ir/trace-internal.h>
  36 #include <babeltrace/trace-ir/utils-internal.h>
  37 #include <babeltrace/trace-ir/field-wrapper-internal.h>
  38 #include <babeltrace/trace-ir/resolve-field-path-internal.h>
  39 #include <babeltrace/object.h>
  40 #include <babeltrace/compiler-internal.h>
  41 #include <babeltrace/align-internal.h>
  42 #include <babeltrace/endian-internal.h>
  43 #include <babeltrace/assert-internal.h>
  44 #include <babeltrace/property-internal.h>
  45 #include <inttypes.h>
  46 #include <stdint.h>
  47 #include <stdbool.h>
  48
  49 #define BT_ASSERT_PRE_STREAM_CLASS_HOT(_sc) \
  50         BT_ASSERT_PRE_HOT((_sc), "Stream class", ": %!+S", (_sc))
  51
  52 static
  53 void destroy_stream_class(struct bt_object *obj)
  54 {
  55         struct bt_stream_class *stream_class = (void *) obj;
  56
  57         BT_LIB_LOGD("Destroying stream class: %!+S", stream_class);
  58         BT_LOGD_STR("Putting default clock class.");
  59         BT_OBJECT_PUT_REF_AND_RESET(stream_class->default_clock_class);
  60
  61         if (stream_class->event_classes) {
  62                 BT_LOGD_STR("Destroying event classes.");
  63                 g_ptr_array_free(stream_class->event_classes, TRUE);
  64                 stream_class->event_classes = NULL;
  65         }
  66
  67         if (stream_class->name.str) {
  68                 g_string_free(stream_class->name.str, TRUE);
  69                 stream_class->name.str = NULL;
  70                 stream_class->name.value = NULL;
  71         }
  72
  73         BT_LOGD_STR("Putting event header field classe.");
  74         BT_OBJECT_PUT_REF_AND_RESET(stream_class->event_header_fc);
  75         BT_LOGD_STR("Putting packet context field classe.");
  76         BT_OBJECT_PUT_REF_AND_RESET(stream_class->packet_context_fc);
  77         BT_LOGD_STR("Putting event common context field classe.");
  78         BT_OBJECT_PUT_REF_AND_RESET(stream_class->event_common_context_fc);
  79         bt_object_pool_finalize(&stream_class->event_header_field_pool);
  80         bt_object_pool_finalize(&stream_class->packet_context_field_pool);
  81         g_free(stream_class);
  82 }
  83
  84 static
  85 void free_field_wrapper(struct bt_field_wrapper *field_wrapper,
  86                 struct bt_stream_class *stream_class)
  87 {
  88         bt_field_wrapper_destroy((void *) field_wrapper);
  89 }
  90
  91 BT_ASSERT_PRE_FUNC
  92 static
  93 bool stream_class_id_is_unique(const struct bt_trace *trace, uint64_t id)
  94 {
  95         uint64_t i;
  96         bool is_unique = true;
  97
  98         for (i = 0; i < trace->stream_classes->len; i++) {
  99                 const struct bt_stream_class *sc =
 100                         trace->stream_classes->pdata[i];
 101
 102                 if (sc->id == id) {
 103                         is_unique = false;
 104                         goto end;
 105                 }
 106         }
 107
 108 end:
 109         return is_unique;
 110 }
 111
 112 static
 113 struct bt_stream_class *create_stream_class_with_id(struct bt_trace *trace,
 114                 uint64_t id)
 115 {
 116         struct bt_stream_class *stream_class = NULL;
 117         int ret;
 118
 119         BT_ASSERT(trace);
 120         BT_ASSERT_PRE(stream_class_id_is_unique(trace, id),
 121                 "Duplicate stream class ID: %![trace-]+t, id=%" PRIu64,
 122                 trace, id);
 123         BT_LIB_LOGD("Creating stream class object: %![trace-]+t, id=%" PRIu64,
 124                 trace, id);
 125         stream_class = g_new0(struct bt_stream_class, 1);
 126         if (!stream_class) {
 127                 BT_LOGE_STR("Failed to allocate one stream class.");
 128                 goto error;
 129         }
 130
 131         bt_object_init_shared_with_parent(&stream_class->base,
 132                 destroy_stream_class);
 133
 134         stream_class->name.str = g_string_new(NULL);
 135         if (!stream_class->name.str) {
 136                 BT_LOGE_STR("Failed to allocate a GString.");
 137                 ret = -1;
 138                 goto end;
 139         }
 140
 141         stream_class->id = id;
 142         stream_class->assigns_automatic_event_class_id = true;
 143         stream_class->assigns_automatic_stream_id = true;
 144         stream_class->event_classes = g_ptr_array_new_with_free_func(
 145                 (GDestroyNotify) bt_object_try_spec_release);
 146         if (!stream_class->event_classes) {
 147                 BT_LOGE_STR("Failed to allocate a GPtrArray.");
 148                 goto error;
 149         }
 150
 151         ret = bt_object_pool_initialize(&stream_class->event_header_field_pool,
 152                 (bt_object_pool_new_object_func) bt_field_wrapper_new,
 153                 (bt_object_pool_destroy_object_func) free_field_wrapper,
 154                 stream_class);
 155         if (ret) {
 156                 BT_LOGE("Failed to initialize event header field pool: ret=%d",
 157                         ret);
 158                 goto error;
 159         }
 160
 161         ret = bt_object_pool_initialize(&stream_class->packet_context_field_pool,
 162                 (bt_object_pool_new_object_func) bt_field_wrapper_new,
 163                 (bt_object_pool_destroy_object_func) free_field_wrapper,
 164                 stream_class);
 165         if (ret) {
 166                 BT_LOGE("Failed to initialize packet context field pool: ret=%d",
 167                         ret);
 168                 goto error;
 169         }
 170
 171         bt_object_set_parent(&stream_class->base, &trace->base);
 172         g_ptr_array_add(trace->stream_classes, stream_class);
 173         bt_trace_freeze(trace);
 174         BT_LIB_LOGD("Created stream class object: %!+S", stream_class);
 175         goto end;
 176
 177 error:
 178         BT_OBJECT_PUT_REF_AND_RESET(stream_class);
 179
 180 end:
 181         return stream_class;
 182 }
 183
 184 struct bt_stream_class *bt_stream_class_create(struct bt_trace *trace)
 185 {
 186         BT_ASSERT_PRE_NON_NULL(trace, "Trace");
 187         BT_ASSERT_PRE(trace->assigns_automatic_stream_class_id,
 188                 "Trace does not automatically assigns stream class IDs: "
 189                 "%![sc-]+t", trace);
 190         return create_stream_class_with_id(trace,
 191                 (uint64_t) trace->stream_classes->len);
 192 }
 193
 194 struct bt_stream_class *bt_stream_class_create_with_id(
 195                 struct bt_trace *trace, uint64_t id)
 196 {
 197         BT_ASSERT_PRE_NON_NULL(trace, "Trace");
 198         BT_ASSERT_PRE(!trace->assigns_automatic_stream_class_id,
 199                 "Trace automatically assigns stream class IDs: "
 200                 "%![sc-]+t", trace);
 201         return create_stream_class_with_id(trace, id);
 202 }
 203
 204 struct bt_trace *bt_stream_class_borrow_trace(
 205                 struct bt_stream_class *stream_class)
 206 {
 207         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 208         return bt_stream_class_borrow_trace_inline(stream_class);
 209 }
 210
 211 const struct bt_trace *bt_stream_class_borrow_trace_const(
 212                 const struct bt_stream_class *stream_class)
 213 {
 214         return bt_stream_class_borrow_trace((void *) stream_class);
 215 }
 216
 217 const char *bt_stream_class_get_name(const struct bt_stream_class *stream_class)
 218 {
 219         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 220         return stream_class->name.value;
 221 }
 222
 223 int bt_stream_class_set_name(
 224                 struct bt_stream_class *stream_class,
 225                 const char *name)
 226 {
 227         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 228         BT_ASSERT_PRE_NON_NULL(name, "Name");
 229         BT_ASSERT_PRE_STREAM_CLASS_HOT(stream_class);
 230         g_string_assign(stream_class->name.str, name);
 231         stream_class->name.value = stream_class->name.str->str;
 232         BT_LIB_LOGV("Set stream class's name: %!+S", stream_class);
 233         return 0;
 234 }
 235
 236 uint64_t bt_stream_class_get_id(const struct bt_stream_class *stream_class)
 237 {
 238         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 239         return stream_class->id;
 240 }
 241
 242 uint64_t bt_stream_class_get_event_class_count(
 243                 const struct bt_stream_class *stream_class)
 244 {
 245         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 246         return (uint64_t) stream_class->event_classes->len;
 247 }
 248
 249 struct bt_event_class *bt_stream_class_borrow_event_class_by_index(
 250                 struct bt_stream_class *stream_class, uint64_t index)
 251 {
 252         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 253         BT_ASSERT_PRE_VALID_INDEX(index, stream_class->event_classes->len);
 254         return g_ptr_array_index(stream_class->event_classes, index);
 255 }
 256
 257 const struct bt_event_class *
 258 bt_stream_class_borrow_event_class_by_index_const(
 259                 const struct bt_stream_class *stream_class, uint64_t index)
 260 {
 261         return bt_stream_class_borrow_event_class_by_index(
 262                 (void *) stream_class, index);
 263 }
 264
 265 struct bt_event_class *bt_stream_class_borrow_event_class_by_id(
 266                 struct bt_stream_class *stream_class, uint64_t id)
 267 {
 268         struct bt_event_class *event_class = NULL;
 269         uint64_t i;
 270
 271         BT_ASSERT_PRE_NON_NULL(stream_class, "Trace");
 272
 273         for (i = 0; i < stream_class->event_classes->len; i++) {
 274                 struct bt_event_class *event_class_candidate =
 275                         g_ptr_array_index(stream_class->event_classes, i);
 276
 277                 if (event_class_candidate->id == id) {
 278                         event_class = event_class_candidate;
 279                         goto end;
 280                 }
 281         }
 282
 283 end:
 284         return event_class;
 285 }
 286
 287 const struct bt_event_class *
 288 bt_stream_class_borrow_event_class_by_id_const(
 289                 const struct bt_stream_class *stream_class, uint64_t id)
 290 {
 291         return bt_stream_class_borrow_event_class_by_id(
 292                 (void *) stream_class, id);
 293 }
 294
 295 const struct bt_field_class *
 296 bt_stream_class_borrow_packet_context_field_class_const(
 297                 const struct bt_stream_class *stream_class)
 298 {
 299         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 300         return stream_class->packet_context_fc;
 301 }
 302
 303 int bt_stream_class_set_packet_context_field_class(
 304                 struct bt_stream_class *stream_class,
 305                 struct bt_field_class *field_class)
 306 {
 307         int ret;
 308         struct bt_resolve_field_path_context resolve_ctx = {
 309                 .packet_header = NULL,
 310                 .packet_context = field_class,
 311                 .event_header = NULL,
 312                 .event_common_context = NULL,
 313                 .event_specific_context = NULL,
 314                 .event_payload = NULL,
 315         };
 316
 317         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 318         BT_ASSERT_PRE_NON_NULL(field_class, "Field class");
 319         BT_ASSERT_PRE_STREAM_CLASS_HOT(stream_class);
 320         BT_ASSERT_PRE(bt_field_class_get_type(field_class) ==
 321                 BT_FIELD_CLASS_TYPE_STRUCTURE,
 322                 "Packet context field classe is not a structure field classe: %!+F",
 323                 field_class);
 324         resolve_ctx.packet_header =
 325                 bt_stream_class_borrow_trace_inline(stream_class)->packet_header_fc;
 326         ret = bt_resolve_field_paths(field_class, &resolve_ctx);
 327         if (ret) {
 328                 goto end;
 329         }
 330
 331         bt_field_class_make_part_of_trace(field_class);
 332         bt_object_put_ref(stream_class->packet_context_fc);
 333         stream_class->packet_context_fc = field_class;
 334         bt_object_get_no_null_check(stream_class->packet_context_fc);
 335         bt_field_class_freeze(field_class);
 336         BT_LIB_LOGV("Set stream class's packet context field classe: %!+S",
 337                 stream_class);
 338
 339 end:
 340         return ret;
 341 }
 342
 343 const struct bt_field_class *bt_stream_class_borrow_event_header_field_class_const(
 344                 const struct bt_stream_class *stream_class)
 345 {
 346         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 347         return stream_class->event_header_fc;
 348 }
 349
 350 int bt_stream_class_set_event_header_field_class(
 351                 struct bt_stream_class *stream_class,
 352                 struct bt_field_class *field_class)
 353 {
 354         int ret;
 355         struct bt_resolve_field_path_context resolve_ctx = {
 356                 .packet_header = NULL,
 357                 .packet_context = NULL,
 358                 .event_header = field_class,
 359                 .event_common_context = NULL,
 360                 .event_specific_context = NULL,
 361                 .event_payload = NULL,
 362         };
 363
 364         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 365         BT_ASSERT_PRE_NON_NULL(field_class, "Field class");
 366         BT_ASSERT_PRE_STREAM_CLASS_HOT(stream_class);
 367         BT_ASSERT_PRE(bt_field_class_get_type(field_class) ==
 368                 BT_FIELD_CLASS_TYPE_STRUCTURE,
 369                 "Event header field classe is not a structure field classe: %!+F",
 370                 field_class);
 371         resolve_ctx.packet_header =
 372                 bt_stream_class_borrow_trace_inline(stream_class)->packet_header_fc;
 373         resolve_ctx.packet_context = stream_class->packet_context_fc;
 374         ret = bt_resolve_field_paths(field_class, &resolve_ctx);
 375         if (ret) {
 376                 goto end;
 377         }
 378
 379         bt_field_class_make_part_of_trace(field_class);
 380         bt_object_put_ref(stream_class->event_header_fc);
 381         stream_class->event_header_fc = field_class;
 382         bt_object_get_no_null_check(stream_class->event_header_fc);
 383         bt_field_class_freeze(field_class);
 384         BT_LIB_LOGV("Set stream class's event header field classe: %!+S",
 385                 stream_class);
 386
 387 end:
 388         return ret;
 389 }
 390
 391 const struct bt_field_class *
 392 bt_stream_class_borrow_event_common_context_field_class_const(
 393                 const struct bt_stream_class *stream_class)
 394 {
 395         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 396         return stream_class->event_common_context_fc;
 397 }
 398
 399 int bt_stream_class_set_event_common_context_field_class(
 400                 struct bt_stream_class *stream_class,
 401                 struct bt_field_class *field_class)
 402 {
 403         int ret;
 404         struct bt_resolve_field_path_context resolve_ctx = {
 405                 .packet_header = NULL,
 406                 .packet_context = NULL,
 407                 .event_header = NULL,
 408                 .event_common_context = field_class,
 409                 .event_specific_context = NULL,
 410                 .event_payload = NULL,
 411         };
 412
 413         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 414         BT_ASSERT_PRE_NON_NULL(field_class, "Field class");
 415         BT_ASSERT_PRE_STREAM_CLASS_HOT(stream_class);
 416         BT_ASSERT_PRE(bt_field_class_get_type(field_class) ==
 417                 BT_FIELD_CLASS_TYPE_STRUCTURE,
 418                 "Event common context field classe is not a structure field classe: %!+F",
 419                 field_class);
 420         resolve_ctx.packet_header =
 421                 bt_stream_class_borrow_trace_inline(stream_class)->packet_header_fc;
 422         resolve_ctx.packet_context = stream_class->packet_context_fc;
 423         resolve_ctx.event_header = stream_class->event_header_fc;
 424         ret = bt_resolve_field_paths(field_class, &resolve_ctx);
 425         if (ret) {
 426                 goto end;
 427         }
 428
 429         bt_field_class_make_part_of_trace(field_class);
 430         bt_object_put_ref(stream_class->event_common_context_fc);
 431         stream_class->event_common_context_fc = field_class;
 432         bt_object_get_no_null_check(stream_class->event_common_context_fc);
 433         bt_field_class_freeze(field_class);
 434         BT_LIB_LOGV("Set stream class's event common context field classe: %!+S",
 435                 stream_class);
 436
 437 end:
 438         return ret;
 439 }
 440
 441 BT_HIDDEN
 442 void _bt_stream_class_freeze(const struct bt_stream_class *stream_class)
 443 {
 444         /* The field classes and default clock class are already frozen */
 445         BT_ASSERT(stream_class);
 446         BT_LIB_LOGD("Freezing stream class: %!+S", stream_class);
 447         ((struct bt_stream_class *) stream_class)->frozen = true;
 448 }
 449
 450 int bt_stream_class_set_default_clock_class(
 451                 struct bt_stream_class *stream_class,
 452                 struct bt_clock_class *clock_class)
 453 {
 454         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 455         BT_ASSERT_PRE_NON_NULL(clock_class, "Clock class");
 456         BT_ASSERT_PRE_STREAM_CLASS_HOT(stream_class);
 457         bt_object_put_ref(stream_class->default_clock_class);
 458         stream_class->default_clock_class = clock_class;
 459         bt_object_get_no_null_check(stream_class->default_clock_class);
 460         bt_clock_class_freeze(clock_class);
 461         BT_LIB_LOGV("Set stream class's default clock class: %!+S",
 462                 stream_class);
 463         return 0;
 464 }
 465
 466 struct bt_clock_class *bt_stream_class_borrow_default_clock_class(
 467                 struct bt_stream_class *stream_class)
 468 {
 469         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 470         return stream_class->default_clock_class;
 471 }
 472
 473 const struct bt_clock_class *bt_stream_class_borrow_default_clock_class_const(
 474                 const struct bt_stream_class *stream_class)
 475 {
 476         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 477         return stream_class->default_clock_class;
 478 }
 479
 480 bt_bool bt_stream_class_assigns_automatic_event_class_id(
 481                 const struct bt_stream_class *stream_class)
 482 {
 483         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 484         return (bt_bool) stream_class->assigns_automatic_event_class_id;
 485 }
 486
 487 void bt_stream_class_set_assigns_automatic_event_class_id(
 488                 struct bt_stream_class *stream_class,
 489                 bt_bool value)
 490 {
 491         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 492         BT_ASSERT_PRE_STREAM_CLASS_HOT(stream_class);
 493         stream_class->assigns_automatic_event_class_id = (bool) value;
 494         BT_LIB_LOGV("Set stream class's automatic event class ID "
 495                 "assignment property: %!+S", stream_class);
 496 }
 497
 498 bt_bool bt_stream_class_assigns_automatic_stream_id(
 499                 const struct bt_stream_class *stream_class)
 500 {
 501         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 502         return (bt_bool) stream_class->assigns_automatic_stream_id;
 503 }
 504
 505 void bt_stream_class_set_assigns_automatic_stream_id(
 506                 struct bt_stream_class *stream_class,
 507                 bt_bool value)
 508 {
 509         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 510         BT_ASSERT_PRE_STREAM_CLASS_HOT(stream_class);
 511         stream_class->assigns_automatic_stream_id = (bool) value;
 512         BT_LIB_LOGV("Set stream class's automatic stream ID "
 513                 "assignment property: %!+S", stream_class);
 514 }
 515
 516 bt_bool bt_stream_class_packets_have_discarded_event_counter_snapshot(
 517                 const struct bt_stream_class *stream_class)
 518 {
 519         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 520         return (bt_bool) stream_class->packets_have_discarded_event_counter_snapshot;
 521 }
 522
 523 void bt_stream_class_set_packets_have_discarded_event_counter_snapshot(
 524                 struct bt_stream_class *stream_class,
 525                 bt_bool value)
 526 {
 527         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 528         BT_ASSERT_PRE_STREAM_CLASS_HOT(stream_class);
 529         stream_class->packets_have_discarded_event_counter_snapshot =
 530                 (bool) value;
 531         BT_LIB_LOGV("Set stream class's "
 532                 "\"packets have discarded event counter snapshot\" property: "
 533                 "%!+S", stream_class);
 534 }
 535
 536 bt_bool bt_stream_class_packets_have_packet_counter_snapshot(
 537                 const struct bt_stream_class *stream_class)
 538 {
 539         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 540         return (bt_bool) stream_class->packets_have_packet_counter_snapshot;
 541 }
 542
 543 void bt_stream_class_set_packets_have_packet_counter_snapshot(
 544                 struct bt_stream_class *stream_class,
 545                 bt_bool value)
 546 {
 547         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 548         BT_ASSERT_PRE_STREAM_CLASS_HOT(stream_class);
 549         stream_class->packets_have_packet_counter_snapshot =
 550                 (bool) value;
 551         BT_LIB_LOGV("Set stream class's "
 552                 "\"packets have packet counter snapshot\" property: "
 553                 "%!+S", stream_class);
 554 }
 555
 556 bt_bool bt_stream_class_packets_have_default_beginning_clock_value(
 557                 const struct bt_stream_class *stream_class)
 558 {
 559         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 560         return (bt_bool) stream_class->packets_have_default_beginning_cv;
 561 }
 562
 563 void bt_stream_class_set_packets_have_default_beginning_clock_value(
 564                 struct bt_stream_class *stream_class,
 565                 bt_bool value)
 566 {
 567         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 568         BT_ASSERT_PRE_STREAM_CLASS_HOT(stream_class);
 569         BT_ASSERT_PRE(!value || stream_class->default_clock_class,
 570                 "Stream class does not have a default clock class: %!+S",
 571                 stream_class);
 572         stream_class->packets_have_default_beginning_cv = (bool) value;
 573         BT_LIB_LOGV("Set stream class's "
 574                 "\"packets have default beginning clock value\" property: "
 575                 "%!+S", stream_class);
 576 }
 577
 578 bt_bool bt_stream_class_packets_have_default_end_clock_value(
 579                 const struct bt_stream_class *stream_class)
 580 {
 581         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 582         return (bt_bool) stream_class->packets_have_default_end_cv;
 583 }
 584
 585 void bt_stream_class_set_packets_have_default_end_clock_value(
 586                 struct bt_stream_class *stream_class,
 587                 bt_bool value)
 588 {
 589         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 590         BT_ASSERT_PRE_STREAM_CLASS_HOT(stream_class);
 591         BT_ASSERT_PRE(!value || stream_class->default_clock_class,
 592                 "Stream class does not have a default clock class: %!+S",
 593                 stream_class);
 594         stream_class->packets_have_default_end_cv = (bool) value;
 595         BT_LIB_LOGV("Set stream class's "
 596                 "\"packets have default end clock value\" property: "
 597                 "%!+S", stream_class);
 598 }
 599
 600 bt_bool bt_stream_class_default_clock_is_always_known(
 601                 const struct bt_stream_class *stream_class)
 602 {
 603         /* BT_CLOCK_VALUE_STATUS_UNKNOWN is not supported as of 2.0 */
 604         return BT_TRUE;
 605 }