2 * Copyright 2013, 2014 Jérémie Galarneau <jeremie.galarneau@efficios.com>
4 * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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
25 #define BT_LOG_TAG "STREAM-CLASS"
26 #include <babeltrace/lib-logging-internal.h>
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>
49 #define BT_ASSERT_PRE_STREAM_CLASS_HOT(_sc) \
50 BT_ASSERT_PRE_HOT((_sc), "Stream class", ": %!+S", (_sc))
53 void destroy_stream_class(struct bt_object
*obj
)
55 struct bt_stream_class
*stream_class
= (void *) obj
;
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
);
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
;
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
;
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
);
85 void free_field_wrapper(struct bt_field_wrapper
*field_wrapper
,
86 struct bt_stream_class
*stream_class
)
88 bt_field_wrapper_destroy((void *) field_wrapper
);
93 bool stream_class_id_is_unique(struct bt_trace
*trace
, uint64_t id
)
96 bool is_unique
= true;
98 for (i
= 0; i
< trace
->stream_classes
->len
; i
++) {
99 struct bt_stream_class
*sc
=
100 trace
->stream_classes
->pdata
[i
];
113 struct bt_stream_class
*create_stream_class_with_id(struct bt_trace
*trace
,
116 struct bt_stream_class
*stream_class
= NULL
;
120 BT_ASSERT_PRE(stream_class_id_is_unique(trace
, id
),
121 "Duplicate stream class ID: %![trace-]+t, id=%" PRIu64
,
123 BT_LIB_LOGD("Creating stream class object: %![trace-]+t, id=%" PRIu64
,
125 stream_class
= g_new0(struct bt_stream_class
, 1);
127 BT_LOGE_STR("Failed to allocate one stream class.");
131 bt_object_init_shared_with_parent(&stream_class
->base
,
132 destroy_stream_class
);
134 stream_class
->name
.str
= g_string_new(NULL
);
135 if (!stream_class
->name
.str
) {
136 BT_LOGE_STR("Failed to allocate a GString.");
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.");
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
,
156 BT_LOGE("Failed to initialize event header field pool: ret=%d",
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
,
166 BT_LOGE("Failed to initialize packet context field pool: ret=%d",
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
);
178 BT_OBJECT_PUT_REF_AND_RESET(stream_class
);
184 struct bt_private_stream_class
*bt_private_stream_class_create(
185 struct bt_private_trace
*priv_trace
)
187 struct bt_trace
*trace
= (void *) priv_trace
;
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: "
193 return (void *) create_stream_class_with_id(trace
,
194 (uint64_t) trace
->stream_classes
->len
);
197 struct bt_private_stream_class
*bt_private_stream_class_create_with_id(
198 struct bt_private_trace
*priv_trace
, uint64_t id
)
200 struct bt_trace
*trace
= (void *) priv_trace
;
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: "
206 return (void *) create_stream_class_with_id(trace
, id
);
209 struct bt_trace
*bt_stream_class_borrow_trace(struct bt_stream_class
*stream_class
)
211 BT_ASSERT_PRE_NON_NULL(stream_class
, "Stream class");
212 return bt_stream_class_borrow_trace_inline(stream_class
);
215 struct bt_private_trace
*bt_private_stream_class_borrow_trace(
216 struct bt_private_stream_class
*stream_class
)
218 return (void *) bt_stream_class_borrow_trace((void *) stream_class
);
221 const char *bt_stream_class_get_name(struct bt_stream_class
*stream_class
)
223 BT_ASSERT_PRE_NON_NULL(stream_class
, "Stream class");
224 return stream_class
->name
.value
;
227 int bt_private_stream_class_set_name(
228 struct bt_private_stream_class
*priv_stream_class
,
231 struct bt_stream_class
*stream_class
= (void *) priv_stream_class
;
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
);
242 uint64_t bt_stream_class_get_id(struct bt_stream_class
*stream_class
)
244 BT_ASSERT_PRE_NON_NULL(stream_class
, "Stream class");
245 return stream_class
->id
;
248 uint64_t bt_stream_class_get_event_class_count(
249 struct bt_stream_class
*stream_class
)
251 BT_ASSERT_PRE_NON_NULL(stream_class
, "Stream class");
252 return (uint64_t) stream_class
->event_classes
->len
;
255 struct bt_event_class
*bt_stream_class_borrow_event_class_by_index(
256 struct bt_stream_class
*stream_class
, uint64_t index
)
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
);
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
)
267 return (void *) bt_stream_class_borrow_event_class_by_index(
268 (void *) stream_class
, index
);
271 struct bt_event_class
*bt_stream_class_borrow_event_class_by_id(
272 struct bt_stream_class
*stream_class
, uint64_t id
)
274 struct bt_event_class
*event_class
= NULL
;
277 BT_ASSERT_PRE_NON_NULL(stream_class
, "Trace");
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
);
283 if (event_class_candidate
->id
== id
) {
284 event_class
= event_class_candidate
;
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
)
297 return (void *) bt_stream_class_borrow_event_class_by_id(
298 (void *) stream_class
, id
);
301 struct bt_field_class
*bt_stream_class_borrow_packet_context_field_class(
302 struct bt_stream_class
*stream_class
)
304 BT_ASSERT_PRE_NON_NULL(stream_class
, "Stream class");
305 return stream_class
->packet_context_fc
;
308 struct bt_private_field_class
*
309 bt_private_stream_class_borrow_packet_context_field_class(
310 struct bt_private_stream_class
*stream_class
)
312 return (void *) bt_stream_class_borrow_packet_context_field_class(
313 (void *) stream_class
);
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
)
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
,
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",
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
);
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",
357 struct bt_field_class
*bt_stream_class_borrow_event_header_field_class(
358 struct bt_stream_class
*stream_class
)
360 BT_ASSERT_PRE_NON_NULL(stream_class
, "Stream class");
361 return stream_class
->event_header_fc
;
364 struct bt_private_field_class
*
365 bt_private_stream_class_borrow_event_header_field_class(
366 struct bt_private_stream_class
*stream_class
)
368 return (void *) bt_stream_class_borrow_event_header_field_class(
369 (void *) stream_class
);
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
)
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
,
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",
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
);
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",
414 struct bt_field_class
*bt_stream_class_borrow_event_common_context_field_class(
415 struct bt_stream_class
*stream_class
)
417 BT_ASSERT_PRE_NON_NULL(stream_class
, "Stream class");
418 return stream_class
->event_common_context_fc
;
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
)
425 return (void *) bt_stream_class_borrow_event_common_context_field_class(
426 (void *) stream_class
);
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
)
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
,
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",
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
);
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",
473 void _bt_stream_class_freeze(struct bt_stream_class
*stream_class
)
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;
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
)
485 struct bt_stream_class
*stream_class
= (void *) priv_stream_class
;
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",
498 struct bt_clock_class
*bt_stream_class_borrow_default_clock_class(
499 struct bt_stream_class
*stream_class
)
501 BT_ASSERT_PRE_NON_NULL(stream_class
, "Stream class");
502 return stream_class
->default_clock_class
;
505 bt_bool
bt_stream_class_assigns_automatic_event_class_id(
506 struct bt_stream_class
*stream_class
)
508 BT_ASSERT_PRE_NON_NULL(stream_class
, "Stream class");
509 return (bt_bool
) stream_class
->assigns_automatic_event_class_id
;
512 void bt_private_stream_class_set_assigns_automatic_event_class_id(
513 struct bt_private_stream_class
*priv_stream_class
,
516 struct bt_stream_class
*stream_class
= (void *) priv_stream_class
;
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
);
525 bt_bool
bt_stream_class_assigns_automatic_stream_id(
526 struct bt_stream_class
*stream_class
)
528 BT_ASSERT_PRE_NON_NULL(stream_class
, "Stream class");
529 return (bt_bool
) stream_class
->assigns_automatic_stream_id
;
532 void bt_private_stream_class_set_assigns_automatic_stream_id(
533 struct bt_private_stream_class
*priv_stream_class
,
536 struct bt_stream_class
*stream_class
= (void *) priv_stream_class
;
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
);
545 bt_bool
bt_stream_class_packets_have_discarded_event_counter_snapshot(
546 struct bt_stream_class
*stream_class
)
548 BT_ASSERT_PRE_NON_NULL(stream_class
, "Stream class");
549 return (bt_bool
) stream_class
->packets_have_discarded_event_counter_snapshot
;
552 void bt_private_stream_class_set_packets_have_discarded_event_counter_snapshot(
553 struct bt_private_stream_class
*priv_stream_class
,
556 struct bt_stream_class
*stream_class
= (void *) priv_stream_class
;
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
=
562 BT_LIB_LOGV("Set stream class's "
563 "\"packets have discarded event counter snapshot\" property: "
564 "%!+S", stream_class
);
567 bt_bool
bt_stream_class_packets_have_packet_counter_snapshot(
568 struct bt_stream_class
*stream_class
)
570 BT_ASSERT_PRE_NON_NULL(stream_class
, "Stream class");
571 return (bt_bool
) stream_class
->packets_have_packet_counter_snapshot
;
574 void bt_private_stream_class_set_packets_have_packet_counter_snapshot(
575 struct bt_private_stream_class
*priv_stream_class
,
578 struct bt_stream_class
*stream_class
= (void *) priv_stream_class
;
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
=
584 BT_LIB_LOGV("Set stream class's "
585 "\"packets have packet counter snapshot\" property: "
586 "%!+S", stream_class
);
589 bt_bool
bt_stream_class_packets_have_default_beginning_clock_value(
590 struct bt_stream_class
*stream_class
)
592 BT_ASSERT_PRE_NON_NULL(stream_class
, "Stream class");
593 return (bt_bool
) stream_class
->packets_have_default_beginning_cv
;
596 void bt_private_stream_class_set_packets_have_default_beginning_clock_value(
597 struct bt_private_stream_class
*priv_stream_class
,
600 struct bt_stream_class
*stream_class
= (void *) priv_stream_class
;
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",
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
);
613 bt_bool
bt_stream_class_packets_have_default_end_clock_value(
614 struct bt_stream_class
*stream_class
)
616 BT_ASSERT_PRE_NON_NULL(stream_class
, "Stream class");
617 return (bt_bool
) stream_class
->packets_have_default_end_cv
;
620 void bt_private_stream_class_set_packets_have_default_end_clock_value(
621 struct bt_private_stream_class
*priv_stream_class
,
624 struct bt_stream_class
*stream_class
= (void *) priv_stream_class
;
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",
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
);
637 bt_bool
bt_stream_class_default_clock_is_always_known(
638 struct bt_stream_class
*stream_class
)
640 /* BT_CLOCK_VALUE_STATUS_UNKNOWN is not supported as of 2.0 */