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/private-trace.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(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                 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_private_stream_class *bt_private_stream_class_create(
 185                 struct bt_private_trace *priv_trace)
 186 {
 187         struct bt_trace *trace = (void *) priv_trace;
 188
 189         BT_ASSERT_PRE_NON_NULL(trace, "Trace");
 190         BT_ASSERT_PRE(trace->assigns_automatic_stream_class_id,
 191                 "Trace does not automatically assigns stream class IDs: "
 192                 "%![sc-]+t", trace);
 193         return (void *) create_stream_class_with_id(trace,
 194                 (uint64_t) trace->stream_classes->len);
 195 }
 196
 197 struct bt_private_stream_class *bt_private_stream_class_create_with_id(
 198                 struct bt_private_trace *priv_trace, uint64_t id)
 199 {
 200         struct bt_trace *trace = (void *) priv_trace;
 201
 202         BT_ASSERT_PRE_NON_NULL(trace, "Trace");
 203         BT_ASSERT_PRE(!trace->assigns_automatic_stream_class_id,
 204                 "Trace automatically assigns stream class IDs: "
 205                 "%![sc-]+t", trace);
 206         return (void *) create_stream_class_with_id(trace, id);
 207 }
 208
 209 struct bt_trace *bt_stream_class_borrow_trace(struct bt_stream_class *stream_class)
 210 {
 211         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 212         return bt_stream_class_borrow_trace_inline(stream_class);
 213 }
 214
 215 struct bt_private_trace *bt_private_stream_class_borrow_trace(
 216                 struct bt_private_stream_class *stream_class)
 217 {
 218         return (void *) bt_stream_class_borrow_trace((void *) stream_class);
 219 }
 220
 221 const char *bt_stream_class_get_name(struct bt_stream_class *stream_class)
 222 {
 223         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 224         return stream_class->name.value;
 225 }
 226
 227 int bt_private_stream_class_set_name(
 228                 struct bt_private_stream_class *priv_stream_class,
 229                 const char *name)
 230 {
 231         struct bt_stream_class *stream_class = (void *) priv_stream_class;
 232
 233         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 234         BT_ASSERT_PRE_NON_NULL(name, "Name");
 235         BT_ASSERT_PRE_STREAM_CLASS_HOT(stream_class);
 236         g_string_assign(stream_class->name.str, name);
 237         stream_class->name.value = stream_class->name.str->str;
 238         BT_LIB_LOGV("Set stream class's name: %!+S", stream_class);
 239         return 0;
 240 }
 241
 242 uint64_t bt_stream_class_get_id(struct bt_stream_class *stream_class)
 243 {
 244         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 245         return stream_class->id;
 246 }
 247
 248 uint64_t bt_stream_class_get_event_class_count(
 249                 struct bt_stream_class *stream_class)
 250 {
 251         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 252         return (uint64_t) stream_class->event_classes->len;
 253 }
 254
 255 struct bt_event_class *bt_stream_class_borrow_event_class_by_index(
 256                 struct bt_stream_class *stream_class, uint64_t index)
 257 {
 258         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 259         BT_ASSERT_PRE_VALID_INDEX(index, stream_class->event_classes->len);
 260         return g_ptr_array_index(stream_class->event_classes, index);
 261 }
 262
 263 struct bt_private_event_class *
 264 bt_private_stream_class_borrow_event_class_by_index(
 265                 struct bt_private_stream_class *stream_class, uint64_t index)
 266 {
 267         return (void *) bt_stream_class_borrow_event_class_by_index(
 268                 (void *) stream_class, index);
 269 }
 270
 271 struct bt_event_class *bt_stream_class_borrow_event_class_by_id(
 272                 struct bt_stream_class *stream_class, uint64_t id)
 273 {
 274         struct bt_event_class *event_class = NULL;
 275         uint64_t i;
 276
 277         BT_ASSERT_PRE_NON_NULL(stream_class, "Trace");
 278
 279         for (i = 0; i < stream_class->event_classes->len; i++) {
 280                 struct bt_event_class *event_class_candidate =
 281                         g_ptr_array_index(stream_class->event_classes, i);
 282
 283                 if (event_class_candidate->id == id) {
 284                         event_class = event_class_candidate;
 285                         goto end;
 286                 }
 287         }
 288
 289 end:
 290         return event_class;
 291 }
 292
 293 struct bt_private_event_class *
 294 bt_private_stream_class_borrow_event_class_by_id(
 295                 struct bt_private_stream_class *stream_class, uint64_t id)
 296 {
 297         return (void *) bt_stream_class_borrow_event_class_by_id(
 298                 (void *) stream_class, id);
 299 }
 300
 301 struct bt_field_class *bt_stream_class_borrow_packet_context_field_class(
 302                 struct bt_stream_class *stream_class)
 303 {
 304         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 305         return stream_class->packet_context_fc;
 306 }
 307
 308 struct bt_private_field_class *
 309 bt_private_stream_class_borrow_packet_context_field_class(
 310                 struct bt_private_stream_class *stream_class)
 311 {
 312         return (void *) bt_stream_class_borrow_packet_context_field_class(
 313                 (void *) stream_class);
 314 }
 315
 316 int bt_private_stream_class_set_packet_context_field_class(
 317                 struct bt_private_stream_class *priv_stream_class,
 318                 struct bt_private_field_class *priv_field_class)
 319 {
 320         int ret;
 321         struct bt_stream_class *stream_class = (void *) priv_stream_class;
 322         struct bt_field_class *field_class = (void *) priv_field_class;
 323         struct bt_resolve_field_path_context resolve_ctx = {
 324                 .packet_header = NULL,
 325                 .packet_context = field_class,
 326                 .event_header = NULL,
 327                 .event_common_context = NULL,
 328                 .event_specific_context = NULL,
 329                 .event_payload = NULL,
 330         };
 331
 332         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 333         BT_ASSERT_PRE_NON_NULL(field_class, "Field class");
 334         BT_ASSERT_PRE_STREAM_CLASS_HOT(stream_class);
 335         BT_ASSERT_PRE(bt_field_class_get_type(field_class) ==
 336                 BT_FIELD_CLASS_TYPE_STRUCTURE,
 337                 "Packet context field classe is not a structure field classe: %!+F",
 338                 field_class);
 339         resolve_ctx.packet_header =
 340                 bt_stream_class_borrow_trace_inline(stream_class)->packet_header_fc;
 341         ret = bt_resolve_field_paths(field_class, &resolve_ctx);
 342         if (ret) {
 343                 goto end;
 344         }
 345
 346         bt_field_class_make_part_of_trace(field_class);
 347         bt_object_put_ref(stream_class->packet_context_fc);
 348         stream_class->packet_context_fc = bt_object_get_ref(field_class);
 349         bt_field_class_freeze(field_class);
 350         BT_LIB_LOGV("Set stream class's packet context field classe: %!+S",
 351                 stream_class);
 352
 353 end:
 354         return ret;
 355 }
 356
 357 struct bt_field_class *bt_stream_class_borrow_event_header_field_class(
 358                 struct bt_stream_class *stream_class)
 359 {
 360         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 361         return stream_class->event_header_fc;
 362 }
 363
 364 struct bt_private_field_class *
 365 bt_private_stream_class_borrow_event_header_field_class(
 366                 struct bt_private_stream_class *stream_class)
 367 {
 368         return (void *) bt_stream_class_borrow_event_header_field_class(
 369                 (void *) stream_class);
 370 }
 371
 372 int bt_private_stream_class_set_event_header_field_class(
 373                 struct bt_private_stream_class *priv_stream_class,
 374                 struct bt_private_field_class *priv_field_class)
 375 {
 376         int ret;
 377         struct bt_stream_class *stream_class = (void *) priv_stream_class;
 378         struct bt_field_class *field_class = (void *) priv_field_class;
 379         struct bt_resolve_field_path_context resolve_ctx = {
 380                 .packet_header = NULL,
 381                 .packet_context = NULL,
 382                 .event_header = field_class,
 383                 .event_common_context = NULL,
 384                 .event_specific_context = NULL,
 385                 .event_payload = NULL,
 386         };
 387
 388         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 389         BT_ASSERT_PRE_NON_NULL(field_class, "Field class");
 390         BT_ASSERT_PRE_STREAM_CLASS_HOT(stream_class);
 391         BT_ASSERT_PRE(bt_field_class_get_type(field_class) ==
 392                 BT_FIELD_CLASS_TYPE_STRUCTURE,
 393                 "Event header field classe is not a structure field classe: %!+F",
 394                 field_class);
 395         resolve_ctx.packet_header =
 396                 bt_stream_class_borrow_trace_inline(stream_class)->packet_header_fc;
 397         resolve_ctx.packet_context = stream_class->packet_context_fc;
 398         ret = bt_resolve_field_paths(field_class, &resolve_ctx);
 399         if (ret) {
 400                 goto end;
 401         }
 402
 403         bt_field_class_make_part_of_trace(field_class);
 404         bt_object_put_ref(stream_class->event_header_fc);
 405         stream_class->event_header_fc = bt_object_get_ref(field_class);
 406         bt_field_class_freeze(field_class);
 407         BT_LIB_LOGV("Set stream class's event header field classe: %!+S",
 408                 stream_class);
 409
 410 end:
 411         return ret;
 412 }
 413
 414 struct bt_field_class *bt_stream_class_borrow_event_common_context_field_class(
 415                 struct bt_stream_class *stream_class)
 416 {
 417         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 418         return stream_class->event_common_context_fc;
 419 }
 420
 421 struct bt_private_field_class *
 422 bt_private_stream_class_borrow_event_common_context_field_class(
 423                 struct bt_private_stream_class *stream_class)
 424 {
 425         return (void *) bt_stream_class_borrow_event_common_context_field_class(
 426                 (void *) stream_class);
 427 }
 428
 429 int bt_private_stream_class_set_event_common_context_field_class(
 430                 struct bt_private_stream_class *priv_stream_class,
 431                 struct bt_private_field_class *priv_field_class)
 432 {
 433         int ret;
 434         struct bt_stream_class *stream_class = (void *) priv_stream_class;
 435         struct bt_field_class *field_class = (void *) priv_field_class;
 436         struct bt_resolve_field_path_context resolve_ctx = {
 437                 .packet_header = NULL,
 438                 .packet_context = NULL,
 439                 .event_header = NULL,
 440                 .event_common_context = field_class,
 441                 .event_specific_context = NULL,
 442                 .event_payload = NULL,
 443         };
 444
 445         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 446         BT_ASSERT_PRE_NON_NULL(field_class, "Field class");
 447         BT_ASSERT_PRE_STREAM_CLASS_HOT(stream_class);
 448         BT_ASSERT_PRE(bt_field_class_get_type(field_class) ==
 449                 BT_FIELD_CLASS_TYPE_STRUCTURE,
 450                 "Event common context field classe is not a structure field classe: %!+F",
 451                 field_class);
 452         resolve_ctx.packet_header =
 453                 bt_stream_class_borrow_trace_inline(stream_class)->packet_header_fc;
 454         resolve_ctx.packet_context = stream_class->packet_context_fc;
 455         resolve_ctx.event_header = stream_class->event_header_fc;
 456         ret = bt_resolve_field_paths(field_class, &resolve_ctx);
 457         if (ret) {
 458                 goto end;
 459         }
 460
 461         bt_field_class_make_part_of_trace(field_class);
 462         bt_object_put_ref(stream_class->event_common_context_fc);
 463         stream_class->event_common_context_fc = bt_object_get_ref(field_class);
 464         bt_field_class_freeze(field_class);
 465         BT_LIB_LOGV("Set stream class's event common context field classe: %!+S",
 466                 stream_class);
 467
 468 end:
 469         return ret;
 470 }
 471
 472 BT_HIDDEN
 473 void _bt_stream_class_freeze(struct bt_stream_class *stream_class)
 474 {
 475         /* The field classes and default clock class are already frozen */
 476         BT_ASSERT(stream_class);
 477         BT_LIB_LOGD("Freezing stream class: %!+S", stream_class);
 478         stream_class->frozen = true;
 479 }
 480
 481 int bt_private_stream_class_set_default_clock_class(
 482                 struct bt_private_stream_class *priv_stream_class,
 483                 struct bt_clock_class *clock_class)
 484 {
 485         struct bt_stream_class *stream_class = (void *) priv_stream_class;
 486
 487         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 488         BT_ASSERT_PRE_NON_NULL(clock_class, "Clock class");
 489         BT_ASSERT_PRE_STREAM_CLASS_HOT(stream_class);
 490         bt_object_put_ref(stream_class->default_clock_class);
 491         stream_class->default_clock_class = bt_object_get_ref(clock_class);
 492         bt_clock_class_freeze(clock_class);
 493         BT_LIB_LOGV("Set stream class's default clock class: %!+S",
 494                 stream_class);
 495         return 0;
 496 }
 497
 498 struct bt_clock_class *bt_stream_class_borrow_default_clock_class(
 499                 struct bt_stream_class *stream_class)
 500 {
 501         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 502         return stream_class->default_clock_class;
 503 }
 504
 505 bt_bool bt_stream_class_assigns_automatic_event_class_id(
 506                 struct bt_stream_class *stream_class)
 507 {
 508         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 509         return (bt_bool) stream_class->assigns_automatic_event_class_id;
 510 }
 511
 512 void bt_private_stream_class_set_assigns_automatic_event_class_id(
 513                 struct bt_private_stream_class *priv_stream_class,
 514                 bt_bool value)
 515 {
 516         struct bt_stream_class *stream_class = (void *) priv_stream_class;
 517
 518         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 519         BT_ASSERT_PRE_STREAM_CLASS_HOT(stream_class);
 520         stream_class->assigns_automatic_event_class_id = (bool) value;
 521         BT_LIB_LOGV("Set stream class's automatic event class ID "
 522                 "assignment property: %!+S", stream_class);
 523 }
 524
 525 bt_bool bt_stream_class_assigns_automatic_stream_id(
 526                 struct bt_stream_class *stream_class)
 527 {
 528         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 529         return (bt_bool) stream_class->assigns_automatic_stream_id;
 530 }
 531
 532 void bt_private_stream_class_set_assigns_automatic_stream_id(
 533                 struct bt_private_stream_class *priv_stream_class,
 534                 bt_bool value)
 535 {
 536         struct bt_stream_class *stream_class = (void *) priv_stream_class;
 537
 538         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 539         BT_ASSERT_PRE_STREAM_CLASS_HOT(stream_class);
 540         stream_class->assigns_automatic_stream_id = (bool) value;
 541         BT_LIB_LOGV("Set stream class's automatic stream ID "
 542                 "assignment property: %!+S", stream_class);
 543 }
 544
 545 bt_bool bt_stream_class_packets_have_discarded_event_counter_snapshot(
 546                 struct bt_stream_class *stream_class)
 547 {
 548         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 549         return (bt_bool) stream_class->packets_have_discarded_event_counter_snapshot;
 550 }
 551
 552 void bt_private_stream_class_set_packets_have_discarded_event_counter_snapshot(
 553                 struct bt_private_stream_class *priv_stream_class,
 554                 bt_bool value)
 555 {
 556         struct bt_stream_class *stream_class = (void *) priv_stream_class;
 557
 558         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 559         BT_ASSERT_PRE_STREAM_CLASS_HOT(stream_class);
 560         stream_class->packets_have_discarded_event_counter_snapshot =
 561                 (bool) value;
 562         BT_LIB_LOGV("Set stream class's "
 563                 "\"packets have discarded event counter snapshot\" property: "
 564                 "%!+S", stream_class);
 565 }
 566
 567 bt_bool bt_stream_class_packets_have_packet_counter_snapshot(
 568                 struct bt_stream_class *stream_class)
 569 {
 570         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 571         return (bt_bool) stream_class->packets_have_packet_counter_snapshot;
 572 }
 573
 574 void bt_private_stream_class_set_packets_have_packet_counter_snapshot(
 575                 struct bt_private_stream_class *priv_stream_class,
 576                 bt_bool value)
 577 {
 578         struct bt_stream_class *stream_class = (void *) priv_stream_class;
 579
 580         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 581         BT_ASSERT_PRE_STREAM_CLASS_HOT(stream_class);
 582         stream_class->packets_have_packet_counter_snapshot =
 583                 (bool) value;
 584         BT_LIB_LOGV("Set stream class's "
 585                 "\"packets have packet counter snapshot\" property: "
 586                 "%!+S", stream_class);
 587 }
 588
 589 bt_bool bt_stream_class_packets_have_default_beginning_clock_value(
 590                 struct bt_stream_class *stream_class)
 591 {
 592         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 593         return (bt_bool) stream_class->packets_have_default_beginning_cv;
 594 }
 595
 596 void bt_private_stream_class_set_packets_have_default_beginning_clock_value(
 597                 struct bt_private_stream_class *priv_stream_class,
 598                 bt_bool value)
 599 {
 600         struct bt_stream_class *stream_class = (void *) priv_stream_class;
 601
 602         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 603         BT_ASSERT_PRE_STREAM_CLASS_HOT(stream_class);
 604         BT_ASSERT_PRE(!value || stream_class->default_clock_class,
 605                 "Stream class does not have a default clock class: %!+S",
 606                 stream_class);
 607         stream_class->packets_have_default_beginning_cv = (bool) value;
 608         BT_LIB_LOGV("Set stream class's "
 609                 "\"packets have default beginning clock value\" property: "
 610                 "%!+S", stream_class);
 611 }
 612
 613 bt_bool bt_stream_class_packets_have_default_end_clock_value(
 614                 struct bt_stream_class *stream_class)
 615 {
 616         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 617         return (bt_bool) stream_class->packets_have_default_end_cv;
 618 }
 619
 620 void bt_private_stream_class_set_packets_have_default_end_clock_value(
 621                 struct bt_private_stream_class *priv_stream_class,
 622                 bt_bool value)
 623 {
 624         struct bt_stream_class *stream_class = (void *) priv_stream_class;
 625
 626         BT_ASSERT_PRE_NON_NULL(stream_class, "Stream class");
 627         BT_ASSERT_PRE_STREAM_CLASS_HOT(stream_class);
 628         BT_ASSERT_PRE(!value || stream_class->default_clock_class,
 629                 "Stream class does not have a default clock class: %!+S",
 630                 stream_class);
 631         stream_class->packets_have_default_end_cv = (bool) value;
 632         BT_LIB_LOGV("Set stream class's "
 633                 "\"packets have default end clock value\" property: "
 634                 "%!+S", stream_class);
 635 }
 636
 637 bt_bool bt_stream_class_default_clock_is_always_known(
 638                 struct bt_stream_class *stream_class)
 639 {
 640         /* BT_CLOCK_VALUE_STATUS_UNKNOWN is not supported as of 2.0 */
 641         return BT_TRUE;
 642 }