2 * Copyright 2017 Philippe Proulx <pproulx@efficios.com>
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23 #define BT_LOG_TAG "PLUGIN-UTILS-MUXER-FLT"
26 #include <babeltrace/babeltrace-internal.h>
27 #include <babeltrace/compat/uuid-internal.h>
28 #include <babeltrace/babeltrace.h>
29 #include <babeltrace/value-internal.h>
30 #include <babeltrace/graph/component-internal.h>
31 #include <babeltrace/graph/message-iterator-internal.h>
32 #include <babeltrace/graph/connection-internal.h>
33 #include <plugins-common.h>
37 #include <babeltrace/assert-internal.h>
38 #include <babeltrace/common-internal.h>
44 #define ASSUME_ABSOLUTE_CLOCK_CLASSES_PARAM_NAME "assume-absolute-clock-classes"
48 bt_self_component_filter
*self_comp
;
50 unsigned int next_port_num
;
51 size_t available_input_ports
;
52 bool initializing_muxer_msg_iter
;
53 bool assume_absolute_clock_classes
;
56 struct muxer_upstream_msg_iter
{
57 /* Owned by this, NULL if ended */
58 bt_self_component_port_input_message_iterator
*msg_iter
;
60 /* Contains `const bt_message *`, owned by this */
64 enum muxer_msg_iter_clock_class_expectation
{
65 MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_ANY
= 0,
66 MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_NONE
,
67 MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_ABSOLUTE
,
68 MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_SPEC_UUID
,
69 MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_NO_UUID
,
72 struct muxer_msg_iter
{
74 * Array of struct muxer_upstream_msg_iter * (owned by this).
76 * NOTE: This array is searched in linearly to find the youngest
77 * current message. Keep this until benchmarks confirm that
78 * another data structure is faster than this for our typical
81 GPtrArray
*active_muxer_upstream_msg_iters
;
84 * Array of struct muxer_upstream_msg_iter * (owned by this).
86 * We move ended message iterators from
87 * `active_muxer_upstream_msg_iters` to this array so as to be
88 * able to restore them when seeking.
90 GPtrArray
*ended_muxer_upstream_msg_iters
;
92 /* Last time returned in a message */
93 int64_t last_returned_ts_ns
;
95 /* Clock class expectation state */
96 enum muxer_msg_iter_clock_class_expectation clock_class_expectation
;
99 * Expected clock class UUID, only valid when
100 * clock_class_expectation is
101 * MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_SPEC_UUID.
103 unsigned char expected_clock_class_uuid
[BABELTRACE_UUID_LEN
];
107 void empty_message_queue(struct muxer_upstream_msg_iter
*upstream_msg_iter
)
109 const bt_message
*msg
;
111 while ((msg
= g_queue_pop_head(upstream_msg_iter
->msgs
))) {
112 bt_message_put_ref(msg
);
117 void destroy_muxer_upstream_msg_iter(
118 struct muxer_upstream_msg_iter
*muxer_upstream_msg_iter
)
120 if (!muxer_upstream_msg_iter
) {
124 BT_LOGD("Destroying muxer's upstream message iterator wrapper: "
125 "addr=%p, msg-iter-addr=%p, queue-len=%u",
126 muxer_upstream_msg_iter
,
127 muxer_upstream_msg_iter
->msg_iter
,
128 muxer_upstream_msg_iter
->msgs
->length
);
129 bt_self_component_port_input_message_iterator_put_ref(
130 muxer_upstream_msg_iter
->msg_iter
);
132 if (muxer_upstream_msg_iter
->msgs
) {
133 empty_message_queue(muxer_upstream_msg_iter
);
134 g_queue_free(muxer_upstream_msg_iter
->msgs
);
137 g_free(muxer_upstream_msg_iter
);
141 int muxer_msg_iter_add_upstream_msg_iter(struct muxer_msg_iter
*muxer_msg_iter
,
142 bt_self_component_port_input_message_iterator
*self_msg_iter
)
145 struct muxer_upstream_msg_iter
*muxer_upstream_msg_iter
=
146 g_new0(struct muxer_upstream_msg_iter
, 1);
148 if (!muxer_upstream_msg_iter
) {
149 BT_LOGE_STR("Failed to allocate one muxer's upstream message iterator wrapper.");
153 muxer_upstream_msg_iter
->msg_iter
= self_msg_iter
;
154 bt_self_component_port_input_message_iterator_get_ref(muxer_upstream_msg_iter
->msg_iter
);
155 muxer_upstream_msg_iter
->msgs
= g_queue_new();
156 if (!muxer_upstream_msg_iter
->msgs
) {
157 BT_LOGE_STR("Failed to allocate a GQueue.");
161 g_ptr_array_add(muxer_msg_iter
->active_muxer_upstream_msg_iters
,
162 muxer_upstream_msg_iter
);
163 BT_LOGD("Added muxer's upstream message iterator wrapper: "
164 "addr=%p, muxer-msg-iter-addr=%p, msg-iter-addr=%p",
165 muxer_upstream_msg_iter
, muxer_msg_iter
,
171 g_free(muxer_upstream_msg_iter
);
179 bt_self_component_status
add_available_input_port(
180 bt_self_component_filter
*self_comp
)
182 struct muxer_comp
*muxer_comp
= bt_self_component_get_data(
183 bt_self_component_filter_as_self_component(self_comp
));
184 bt_self_component_status status
= BT_SELF_COMPONENT_STATUS_OK
;
185 GString
*port_name
= NULL
;
187 BT_ASSERT(muxer_comp
);
188 port_name
= g_string_new("in");
190 BT_LOGE_STR("Failed to allocate a GString.");
191 status
= BT_SELF_COMPONENT_STATUS_NOMEM
;
195 g_string_append_printf(port_name
, "%u", muxer_comp
->next_port_num
);
196 status
= bt_self_component_filter_add_input_port(
197 self_comp
, port_name
->str
, NULL
, NULL
);
198 if (status
!= BT_SELF_COMPONENT_STATUS_OK
) {
199 BT_LOGE("Cannot add input port to muxer component: "
200 "port-name=\"%s\", comp-addr=%p, status=%s",
201 port_name
->str
, self_comp
,
202 bt_self_component_status_string(status
));
206 muxer_comp
->available_input_ports
++;
207 muxer_comp
->next_port_num
++;
208 BT_LOGD("Added one input port to muxer component: "
209 "port-name=\"%s\", comp-addr=%p",
210 port_name
->str
, self_comp
);
214 g_string_free(port_name
, TRUE
);
221 bt_self_component_status
create_output_port(
222 bt_self_component_filter
*self_comp
)
224 return bt_self_component_filter_add_output_port(
225 self_comp
, "out", NULL
, NULL
);
229 void destroy_muxer_comp(struct muxer_comp
*muxer_comp
)
239 bt_value
*get_default_params(void)
244 params
= bt_value_map_create();
246 BT_LOGE_STR("Cannot create a map value object.");
250 ret
= bt_value_map_insert_bool_entry(params
,
251 ASSUME_ABSOLUTE_CLOCK_CLASSES_PARAM_NAME
, false);
253 BT_LOGE_STR("Cannot add boolean value to map value object.");
260 BT_VALUE_PUT_REF_AND_RESET(params
);
267 int configure_muxer_comp(struct muxer_comp
*muxer_comp
,
268 const bt_value
*params
)
270 bt_value
*default_params
= NULL
;
271 bt_value
*real_params
= NULL
;
272 const bt_value
*assume_absolute_clock_classes
= NULL
;
276 default_params
= get_default_params();
277 if (!default_params
) {
278 BT_LOGE("Cannot get default parameters: "
279 "muxer-comp-addr=%p", muxer_comp
);
283 ret
= bt_value_map_extend(default_params
, params
, &real_params
);
285 BT_LOGE("Cannot extend default parameters map value: "
286 "muxer-comp-addr=%p, def-params-addr=%p, "
287 "params-addr=%p", muxer_comp
, default_params
,
292 assume_absolute_clock_classes
= bt_value_map_borrow_entry_value(real_params
,
293 ASSUME_ABSOLUTE_CLOCK_CLASSES_PARAM_NAME
);
294 if (assume_absolute_clock_classes
&&
295 !bt_value_is_bool(assume_absolute_clock_classes
)) {
296 BT_LOGE("Expecting a boolean value for the `%s` parameter: "
297 "muxer-comp-addr=%p, value-type=%s",
298 ASSUME_ABSOLUTE_CLOCK_CLASSES_PARAM_NAME
, muxer_comp
,
299 bt_common_value_type_string(
300 bt_value_get_type(assume_absolute_clock_classes
)));
304 bool_val
= bt_value_bool_get(assume_absolute_clock_classes
);
305 muxer_comp
->assume_absolute_clock_classes
= (bool) bool_val
;
306 BT_LOGD("Configured muxer component: muxer-comp-addr=%p, "
307 "assume-absolute-clock-classes=%d",
308 muxer_comp
, muxer_comp
->assume_absolute_clock_classes
);
315 bt_value_put_ref(default_params
);
316 bt_value_put_ref(real_params
);
321 bt_self_component_status
muxer_init(
322 bt_self_component_filter
*self_comp
,
323 const bt_value
*params
, void *init_data
)
326 bt_self_component_status status
= BT_SELF_COMPONENT_STATUS_OK
;
327 struct muxer_comp
*muxer_comp
= g_new0(struct muxer_comp
, 1);
329 BT_LOGD("Initializing muxer component: "
330 "comp-addr=%p, params-addr=%p", self_comp
, params
);
333 BT_LOGE_STR("Failed to allocate one muxer component.");
337 ret
= configure_muxer_comp(muxer_comp
, params
);
339 BT_LOGE("Cannot configure muxer component: "
340 "muxer-comp-addr=%p, params-addr=%p",
345 muxer_comp
->self_comp
= self_comp
;
346 bt_self_component_set_data(
347 bt_self_component_filter_as_self_component(self_comp
),
349 status
= add_available_input_port(self_comp
);
350 if (status
!= BT_SELF_COMPONENT_STATUS_OK
) {
351 BT_LOGE("Cannot ensure that at least one muxer component's input port is available: "
352 "muxer-comp-addr=%p, status=%s",
354 bt_self_component_status_string(status
));
358 status
= create_output_port(self_comp
);
360 BT_LOGE("Cannot create muxer component's output port: "
361 "muxer-comp-addr=%p, status=%s",
363 bt_self_component_status_string(status
));
367 BT_LOGD("Initialized muxer component: "
368 "comp-addr=%p, params-addr=%p, muxer-comp-addr=%p",
369 self_comp
, params
, muxer_comp
);
374 destroy_muxer_comp(muxer_comp
);
375 bt_self_component_set_data(
376 bt_self_component_filter_as_self_component(self_comp
),
379 if (status
== BT_SELF_COMPONENT_STATUS_OK
) {
380 status
= BT_SELF_COMPONENT_STATUS_ERROR
;
388 void muxer_finalize(bt_self_component_filter
*self_comp
)
390 struct muxer_comp
*muxer_comp
= bt_self_component_get_data(
391 bt_self_component_filter_as_self_component(self_comp
));
393 BT_LOGD("Finalizing muxer component: comp-addr=%p",
395 destroy_muxer_comp(muxer_comp
);
399 bt_self_component_port_input_message_iterator
*
400 create_msg_iter_on_input_port(bt_self_component_port_input
*self_port
)
402 const bt_port
*port
= bt_self_component_port_as_port(
403 bt_self_component_port_input_as_self_component_port(
405 bt_self_component_port_input_message_iterator
*msg_iter
=
409 BT_ASSERT(bt_port_is_connected(port
));
411 // TODO: Advance the iterator to >= the time of the latest
412 // returned message by the muxer message
413 // iterator which creates it.
414 msg_iter
= bt_self_component_port_input_message_iterator_create(
417 BT_LOGE("Cannot create upstream message iterator on input port: "
418 "port-addr=%p, port-name=\"%s\"",
419 port
, bt_port_get_name(port
));
423 BT_LOGD("Created upstream message iterator on input port: "
424 "port-addr=%p, port-name=\"%s\", msg-iter-addr=%p",
425 port
, bt_port_get_name(port
), msg_iter
);
432 bt_self_message_iterator_status
muxer_upstream_msg_iter_next(
433 struct muxer_upstream_msg_iter
*muxer_upstream_msg_iter
,
436 bt_self_message_iterator_status status
;
437 bt_message_iterator_status input_port_iter_status
;
438 bt_message_array_const msgs
;
442 BT_LOGV("Calling upstream message iterator's \"next\" method: "
443 "muxer-upstream-msg-iter-wrap-addr=%p, msg-iter-addr=%p",
444 muxer_upstream_msg_iter
,
445 muxer_upstream_msg_iter
->msg_iter
);
446 input_port_iter_status
= bt_self_component_port_input_message_iterator_next(
447 muxer_upstream_msg_iter
->msg_iter
, &msgs
, &count
);
448 BT_LOGV("Upstream message iterator's \"next\" method returned: "
449 "status=%s", bt_message_iterator_status_string(input_port_iter_status
));
451 switch (input_port_iter_status
) {
452 case BT_MESSAGE_ITERATOR_STATUS_OK
:
454 * Message iterator's current message is
455 * valid: it must be considered for muxing operations.
457 BT_LOGV_STR("Validated upstream message iterator wrapper.");
458 BT_ASSERT(count
> 0);
460 /* Move messages to our queue */
461 for (i
= 0; i
< count
; i
++) {
463 * Push to tail in order; other side
464 * (muxer_msg_iter_do_next_one()) consumes
465 * from the head first.
467 g_queue_push_tail(muxer_upstream_msg_iter
->msgs
,
470 status
= BT_SELF_MESSAGE_ITERATOR_STATUS_OK
;
472 case BT_MESSAGE_ITERATOR_STATUS_AGAIN
:
474 * Message iterator's current message is not
475 * valid anymore. Return
476 * BT_MESSAGE_ITERATOR_STATUS_AGAIN immediately.
478 status
= BT_SELF_MESSAGE_ITERATOR_STATUS_AGAIN
;
480 case BT_MESSAGE_ITERATOR_STATUS_END
: /* Fall-through. */
482 * Message iterator reached the end: release it. It
483 * won't be considered again to find the youngest
487 status
= BT_SELF_MESSAGE_ITERATOR_STATUS_OK
;
490 /* Error or unsupported status code */
491 BT_LOGE("Error or unsupported status code: "
492 "status-code=%d", input_port_iter_status
);
493 status
= BT_SELF_MESSAGE_ITERATOR_STATUS_ERROR
;
501 int get_msg_ts_ns(struct muxer_comp
*muxer_comp
,
502 struct muxer_msg_iter
*muxer_msg_iter
,
503 const bt_message
*msg
, int64_t last_returned_ts_ns
,
506 const bt_clock_snapshot
*clock_snapshot
= NULL
;
508 bt_message_stream_activity_clock_snapshot_state sa_cs_state
;
512 BT_LOGV("Getting message's timestamp: "
513 "muxer-msg-iter-addr=%p, msg-addr=%p, "
514 "last-returned-ts=%" PRId64
,
515 muxer_msg_iter
, msg
, last_returned_ts_ns
);
517 if (unlikely(muxer_msg_iter
->clock_class_expectation
==
518 MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_NONE
)) {
519 *ts_ns
= last_returned_ts_ns
;
523 switch (bt_message_get_type(msg
)) {
524 case BT_MESSAGE_TYPE_EVENT
:
525 BT_ASSERT(bt_message_event_borrow_stream_class_default_clock_class_const(
527 clock_snapshot
= bt_message_event_borrow_default_clock_snapshot_const(
530 case BT_MESSAGE_TYPE_PACKET_BEGINNING
:
531 BT_ASSERT(bt_message_packet_beginning_borrow_stream_class_default_clock_class_const(
533 clock_snapshot
= bt_message_packet_beginning_borrow_default_clock_snapshot_const(
536 case BT_MESSAGE_TYPE_PACKET_END
:
537 BT_ASSERT(bt_message_packet_end_borrow_stream_class_default_clock_class_const(
539 clock_snapshot
= bt_message_packet_end_borrow_default_clock_snapshot_const(
542 case BT_MESSAGE_TYPE_DISCARDED_EVENTS
:
543 BT_ASSERT(bt_message_discarded_events_borrow_stream_class_default_clock_class_const(
545 clock_snapshot
= bt_message_discarded_events_borrow_default_beginning_clock_snapshot_const(
548 case BT_MESSAGE_TYPE_DISCARDED_PACKETS
:
549 BT_ASSERT(bt_message_discarded_packets_borrow_stream_class_default_clock_class_const(
551 clock_snapshot
= bt_message_discarded_packets_borrow_default_beginning_clock_snapshot_const(
554 case BT_MESSAGE_TYPE_STREAM_ACTIVITY_BEGINNING
:
555 BT_ASSERT(bt_message_stream_activity_beginning_borrow_stream_class_default_clock_class_const(
557 sa_cs_state
= bt_message_stream_activity_beginning_borrow_default_clock_snapshot_const(
558 msg
, &clock_snapshot
);
559 if (sa_cs_state
!= BT_MESSAGE_STREAM_ACTIVITY_CLOCK_SNAPSHOT_STATE_KNOWN
) {
560 goto no_clock_snapshot
;
564 case BT_MESSAGE_TYPE_STREAM_ACTIVITY_END
:
565 BT_ASSERT(bt_message_stream_activity_end_borrow_stream_class_default_clock_class_const(
567 sa_cs_state
= bt_message_stream_activity_end_borrow_default_clock_snapshot_const(
568 msg
, &clock_snapshot
);
569 if (sa_cs_state
!= BT_MESSAGE_STREAM_ACTIVITY_CLOCK_SNAPSHOT_STATE_KNOWN
) {
570 goto no_clock_snapshot
;
574 case BT_MESSAGE_TYPE_MESSAGE_ITERATOR_INACTIVITY
:
575 clock_snapshot
= bt_message_message_iterator_inactivity_borrow_default_clock_snapshot_const(
579 /* All the other messages have a higher priority */
580 BT_LOGV_STR("Message has no timestamp: using the last returned timestamp.");
581 *ts_ns
= last_returned_ts_ns
;
585 ret
= bt_clock_snapshot_get_ns_from_origin(clock_snapshot
, ts_ns
);
587 BT_LOGE("Cannot get nanoseconds from Epoch of clock snapshot: "
588 "clock-snapshot-addr=%p", clock_snapshot
);
595 BT_LOGV_STR("Message's default clock snapshot is missing: "
596 "using the last returned timestamp.");
597 *ts_ns
= last_returned_ts_ns
;
605 BT_LOGV("Found message's timestamp: "
606 "muxer-msg-iter-addr=%p, msg-addr=%p, "
607 "last-returned-ts=%" PRId64
", ts=%" PRId64
,
608 muxer_msg_iter
, msg
, last_returned_ts_ns
,
616 int validate_clock_class(struct muxer_msg_iter
*muxer_msg_iter
,
617 struct muxer_comp
*muxer_comp
,
618 const bt_clock_class
*clock_class
)
621 const unsigned char *cc_uuid
;
624 BT_ASSERT(clock_class
);
625 cc_uuid
= bt_clock_class_get_uuid(clock_class
);
626 cc_name
= bt_clock_class_get_name(clock_class
);
628 if (muxer_msg_iter
->clock_class_expectation
==
629 MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_ANY
) {
631 * This is the first clock class that this muxer
632 * message iterator encounters. Its properties
633 * determine what to expect for the whole lifetime of
634 * the iterator without a true
635 * `assume-absolute-clock-classes` parameter.
637 if (bt_clock_class_origin_is_unix_epoch(clock_class
)) {
638 /* Expect absolute clock classes */
639 muxer_msg_iter
->clock_class_expectation
=
640 MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_ABSOLUTE
;
644 * Expect non-absolute clock classes
645 * with a specific UUID.
647 muxer_msg_iter
->clock_class_expectation
=
648 MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_SPEC_UUID
;
649 memcpy(muxer_msg_iter
->expected_clock_class_uuid
,
650 cc_uuid
, BABELTRACE_UUID_LEN
);
653 * Expect non-absolute clock classes
656 muxer_msg_iter
->clock_class_expectation
=
657 MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_NO_UUID
;
662 if (!muxer_comp
->assume_absolute_clock_classes
) {
663 switch (muxer_msg_iter
->clock_class_expectation
) {
664 case MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_ABSOLUTE
:
665 if (!bt_clock_class_origin_is_unix_epoch(clock_class
)) {
666 BT_LOGE("Expecting an absolute clock class, "
667 "but got a non-absolute one: "
668 "clock-class-addr=%p, clock-class-name=\"%s\"",
669 clock_class
, cc_name
);
673 case MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_NO_UUID
:
674 if (bt_clock_class_origin_is_unix_epoch(clock_class
)) {
675 BT_LOGE("Expecting a non-absolute clock class with no UUID, "
676 "but got an absolute one: "
677 "clock-class-addr=%p, clock-class-name=\"%s\"",
678 clock_class
, cc_name
);
683 BT_LOGE("Expecting a non-absolute clock class with no UUID, "
684 "but got one with a UUID: "
685 "clock-class-addr=%p, clock-class-name=\"%s\", "
686 "uuid=\"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\"",
687 clock_class
, cc_name
,
688 (unsigned int) cc_uuid
[0],
689 (unsigned int) cc_uuid
[1],
690 (unsigned int) cc_uuid
[2],
691 (unsigned int) cc_uuid
[3],
692 (unsigned int) cc_uuid
[4],
693 (unsigned int) cc_uuid
[5],
694 (unsigned int) cc_uuid
[6],
695 (unsigned int) cc_uuid
[7],
696 (unsigned int) cc_uuid
[8],
697 (unsigned int) cc_uuid
[9],
698 (unsigned int) cc_uuid
[10],
699 (unsigned int) cc_uuid
[11],
700 (unsigned int) cc_uuid
[12],
701 (unsigned int) cc_uuid
[13],
702 (unsigned int) cc_uuid
[14],
703 (unsigned int) cc_uuid
[15]);
707 case MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_SPEC_UUID
:
708 if (bt_clock_class_origin_is_unix_epoch(clock_class
)) {
709 BT_LOGE("Expecting a non-absolute clock class with a specific UUID, "
710 "but got an absolute one: "
711 "clock-class-addr=%p, clock-class-name=\"%s\"",
712 clock_class
, cc_name
);
717 BT_LOGE("Expecting a non-absolute clock class with a specific UUID, "
718 "but got one with no UUID: "
719 "clock-class-addr=%p, clock-class-name=\"%s\"",
720 clock_class
, cc_name
);
724 if (memcmp(muxer_msg_iter
->expected_clock_class_uuid
,
725 cc_uuid
, BABELTRACE_UUID_LEN
) != 0) {
726 BT_LOGE("Expecting a non-absolute clock class with a specific UUID, "
727 "but got one with different UUID: "
728 "clock-class-addr=%p, clock-class-name=\"%s\", "
729 "expected-uuid=\"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\", "
730 "uuid=\"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\"",
731 clock_class
, cc_name
,
732 (unsigned int) muxer_msg_iter
->expected_clock_class_uuid
[0],
733 (unsigned int) muxer_msg_iter
->expected_clock_class_uuid
[1],
734 (unsigned int) muxer_msg_iter
->expected_clock_class_uuid
[2],
735 (unsigned int) muxer_msg_iter
->expected_clock_class_uuid
[3],
736 (unsigned int) muxer_msg_iter
->expected_clock_class_uuid
[4],
737 (unsigned int) muxer_msg_iter
->expected_clock_class_uuid
[5],
738 (unsigned int) muxer_msg_iter
->expected_clock_class_uuid
[6],
739 (unsigned int) muxer_msg_iter
->expected_clock_class_uuid
[7],
740 (unsigned int) muxer_msg_iter
->expected_clock_class_uuid
[8],
741 (unsigned int) muxer_msg_iter
->expected_clock_class_uuid
[9],
742 (unsigned int) muxer_msg_iter
->expected_clock_class_uuid
[10],
743 (unsigned int) muxer_msg_iter
->expected_clock_class_uuid
[11],
744 (unsigned int) muxer_msg_iter
->expected_clock_class_uuid
[12],
745 (unsigned int) muxer_msg_iter
->expected_clock_class_uuid
[13],
746 (unsigned int) muxer_msg_iter
->expected_clock_class_uuid
[14],
747 (unsigned int) muxer_msg_iter
->expected_clock_class_uuid
[15],
748 (unsigned int) cc_uuid
[0],
749 (unsigned int) cc_uuid
[1],
750 (unsigned int) cc_uuid
[2],
751 (unsigned int) cc_uuid
[3],
752 (unsigned int) cc_uuid
[4],
753 (unsigned int) cc_uuid
[5],
754 (unsigned int) cc_uuid
[6],
755 (unsigned int) cc_uuid
[7],
756 (unsigned int) cc_uuid
[8],
757 (unsigned int) cc_uuid
[9],
758 (unsigned int) cc_uuid
[10],
759 (unsigned int) cc_uuid
[11],
760 (unsigned int) cc_uuid
[12],
761 (unsigned int) cc_uuid
[13],
762 (unsigned int) cc_uuid
[14],
763 (unsigned int) cc_uuid
[15]);
767 case MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_NONE
:
768 BT_LOGE("Expecting no clock class, but got one: "
769 "clock-class-addr=%p, clock-class-name=\"%s\"",
770 clock_class
, cc_name
);
774 BT_LOGF("Unexpected clock class expectation: "
775 "expectation-code=%d",
776 muxer_msg_iter
->clock_class_expectation
);
791 int validate_new_stream_clock_class(struct muxer_msg_iter
*muxer_msg_iter
,
792 struct muxer_comp
*muxer_comp
, const bt_stream
*stream
)
795 const bt_stream_class
*stream_class
=
796 bt_stream_borrow_class_const(stream
);
797 const bt_clock_class
*clock_class
=
798 bt_stream_class_borrow_default_clock_class_const(stream_class
);
801 if (muxer_msg_iter
->clock_class_expectation
==
802 MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_ANY
) {
803 /* Expect no clock class */
804 muxer_msg_iter
->clock_class_expectation
=
805 MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_NONE
;
807 BT_LOGE("Expecting stream class with a default clock class: "
808 "stream-class-addr=%p, stream-class-name=\"%s\", "
809 "stream-class-id=%" PRIu64
,
810 stream_class
, bt_stream_class_get_name(stream_class
),
811 bt_stream_class_get_id(stream_class
));
818 ret
= validate_clock_class(muxer_msg_iter
, muxer_comp
, clock_class
);
825 * This function finds the youngest available message amongst the
826 * non-ended upstream message iterators and returns the upstream
827 * message iterator which has it, or
828 * BT_MESSAGE_ITERATOR_STATUS_END if there's no available
831 * This function does NOT:
833 * * Update any upstream message iterator.
834 * * Check the upstream message iterators to retry.
836 * On sucess, this function sets *muxer_upstream_msg_iter to the
837 * upstream message iterator of which the current message is
838 * the youngest, and sets *ts_ns to its time.
841 bt_self_message_iterator_status
842 muxer_msg_iter_youngest_upstream_msg_iter(
843 struct muxer_comp
*muxer_comp
,
844 struct muxer_msg_iter
*muxer_msg_iter
,
845 struct muxer_upstream_msg_iter
**muxer_upstream_msg_iter
,
850 int64_t youngest_ts_ns
= INT64_MAX
;
851 bt_self_message_iterator_status status
=
852 BT_SELF_MESSAGE_ITERATOR_STATUS_OK
;
854 BT_ASSERT(muxer_comp
);
855 BT_ASSERT(muxer_msg_iter
);
856 BT_ASSERT(muxer_upstream_msg_iter
);
857 *muxer_upstream_msg_iter
= NULL
;
859 for (i
= 0; i
< muxer_msg_iter
->active_muxer_upstream_msg_iters
->len
;
861 const bt_message
*msg
;
862 struct muxer_upstream_msg_iter
*cur_muxer_upstream_msg_iter
=
864 muxer_msg_iter
->active_muxer_upstream_msg_iters
,
868 if (!cur_muxer_upstream_msg_iter
->msg_iter
) {
869 /* This upstream message iterator is ended */
870 BT_LOGV("Skipping ended upstream message iterator: "
871 "muxer-upstream-msg-iter-wrap-addr=%p",
872 cur_muxer_upstream_msg_iter
);
876 BT_ASSERT(cur_muxer_upstream_msg_iter
->msgs
->length
> 0);
877 msg
= g_queue_peek_head(cur_muxer_upstream_msg_iter
->msgs
);
880 if (unlikely(bt_message_get_type(msg
) ==
881 BT_MESSAGE_TYPE_STREAM_BEGINNING
)) {
882 ret
= validate_new_stream_clock_class(
883 muxer_msg_iter
, muxer_comp
,
884 bt_message_stream_beginning_borrow_stream_const(
888 * validate_new_stream_clock_class() logs
891 status
= BT_SELF_MESSAGE_ITERATOR_STATUS_ERROR
;
894 } else if (unlikely(bt_message_get_type(msg
) ==
895 BT_MESSAGE_TYPE_MESSAGE_ITERATOR_INACTIVITY
)) {
896 const bt_clock_snapshot
*cs
;
898 cs
= bt_message_message_iterator_inactivity_borrow_default_clock_snapshot_const(
900 ret
= validate_clock_class(muxer_msg_iter
, muxer_comp
,
901 bt_clock_snapshot_borrow_clock_class_const(cs
));
903 /* validate_clock_class() logs errors */
904 status
= BT_SELF_MESSAGE_ITERATOR_STATUS_ERROR
;
909 ret
= get_msg_ts_ns(muxer_comp
, muxer_msg_iter
, msg
,
910 muxer_msg_iter
->last_returned_ts_ns
, &msg_ts_ns
);
912 /* get_msg_ts_ns() logs errors */
913 *muxer_upstream_msg_iter
= NULL
;
914 status
= BT_SELF_MESSAGE_ITERATOR_STATUS_ERROR
;
918 if (msg_ts_ns
<= youngest_ts_ns
) {
919 *muxer_upstream_msg_iter
=
920 cur_muxer_upstream_msg_iter
;
921 youngest_ts_ns
= msg_ts_ns
;
922 *ts_ns
= youngest_ts_ns
;
926 if (!*muxer_upstream_msg_iter
) {
927 status
= BT_SELF_MESSAGE_ITERATOR_STATUS_END
;
936 bt_self_message_iterator_status
validate_muxer_upstream_msg_iter(
937 struct muxer_upstream_msg_iter
*muxer_upstream_msg_iter
,
940 bt_self_message_iterator_status status
=
941 BT_SELF_MESSAGE_ITERATOR_STATUS_OK
;
943 BT_LOGV("Validating muxer's upstream message iterator wrapper: "
944 "muxer-upstream-msg-iter-wrap-addr=%p",
945 muxer_upstream_msg_iter
);
947 if (muxer_upstream_msg_iter
->msgs
->length
> 0 ||
948 !muxer_upstream_msg_iter
->msg_iter
) {
949 BT_LOGV("Already valid or not considered: "
950 "queue-len=%u, upstream-msg-iter-addr=%p",
951 muxer_upstream_msg_iter
->msgs
->length
,
952 muxer_upstream_msg_iter
->msg_iter
);
956 /* muxer_upstream_msg_iter_next() logs details/errors */
957 status
= muxer_upstream_msg_iter_next(muxer_upstream_msg_iter
,
965 bt_self_message_iterator_status
validate_muxer_upstream_msg_iters(
966 struct muxer_msg_iter
*muxer_msg_iter
)
968 bt_self_message_iterator_status status
=
969 BT_SELF_MESSAGE_ITERATOR_STATUS_OK
;
972 BT_LOGV("Validating muxer's upstream message iterator wrappers: "
973 "muxer-msg-iter-addr=%p", muxer_msg_iter
);
975 for (i
= 0; i
< muxer_msg_iter
->active_muxer_upstream_msg_iters
->len
;
977 bool is_ended
= false;
978 struct muxer_upstream_msg_iter
*muxer_upstream_msg_iter
=
980 muxer_msg_iter
->active_muxer_upstream_msg_iters
,
983 status
= validate_muxer_upstream_msg_iter(
984 muxer_upstream_msg_iter
, &is_ended
);
985 if (status
!= BT_SELF_MESSAGE_ITERATOR_STATUS_OK
) {
987 BT_LOGE("Cannot validate muxer's upstream message iterator wrapper: "
988 "muxer-msg-iter-addr=%p, "
989 "muxer-upstream-msg-iter-wrap-addr=%p",
991 muxer_upstream_msg_iter
);
993 BT_LOGV("Cannot validate muxer's upstream message iterator wrapper: "
994 "muxer-msg-iter-addr=%p, "
995 "muxer-upstream-msg-iter-wrap-addr=%p",
997 muxer_upstream_msg_iter
);
1004 * Move this muxer upstream message iterator to the
1005 * array of ended iterators if it's ended.
1007 if (unlikely(is_ended
)) {
1008 BT_LOGV("Muxer's upstream message iterator wrapper: ended or canceled: "
1009 "muxer-msg-iter-addr=%p, "
1010 "muxer-upstream-msg-iter-wrap-addr=%p",
1011 muxer_msg_iter
, muxer_upstream_msg_iter
);
1013 muxer_msg_iter
->ended_muxer_upstream_msg_iters
,
1014 muxer_upstream_msg_iter
);
1015 muxer_msg_iter
->active_muxer_upstream_msg_iters
->pdata
[i
] = NULL
;
1018 * Use g_ptr_array_remove_fast() because the
1019 * order of those elements is not important.
1021 g_ptr_array_remove_index_fast(
1022 muxer_msg_iter
->active_muxer_upstream_msg_iters
,
1033 bt_self_message_iterator_status
muxer_msg_iter_do_next_one(
1034 struct muxer_comp
*muxer_comp
,
1035 struct muxer_msg_iter
*muxer_msg_iter
,
1036 const bt_message
**msg
)
1038 bt_self_message_iterator_status status
;
1039 struct muxer_upstream_msg_iter
*muxer_upstream_msg_iter
= NULL
;
1040 int64_t next_return_ts
;
1042 status
= validate_muxer_upstream_msg_iters(muxer_msg_iter
);
1043 if (status
!= BT_SELF_MESSAGE_ITERATOR_STATUS_OK
) {
1044 /* validate_muxer_upstream_msg_iters() logs details */
1049 * At this point we know that all the existing upstream
1050 * message iterators are valid. We can find the one,
1051 * amongst those, of which the current message is the
1054 status
= muxer_msg_iter_youngest_upstream_msg_iter(muxer_comp
,
1055 muxer_msg_iter
, &muxer_upstream_msg_iter
,
1057 if (status
< 0 || status
== BT_SELF_MESSAGE_ITERATOR_STATUS_END
) {
1059 BT_LOGE("Cannot find the youngest upstream message iterator wrapper: "
1061 bt_common_self_message_iterator_status_string(status
));
1063 BT_LOGV("Cannot find the youngest upstream message iterator wrapper: "
1065 bt_common_self_message_iterator_status_string(status
));
1071 if (next_return_ts
< muxer_msg_iter
->last_returned_ts_ns
) {
1072 BT_LOGE("Youngest upstream message iterator wrapper's timestamp is less than muxer's message iterator's last returned timestamp: "
1073 "muxer-msg-iter-addr=%p, ts=%" PRId64
", "
1074 "last-returned-ts=%" PRId64
,
1075 muxer_msg_iter
, next_return_ts
,
1076 muxer_msg_iter
->last_returned_ts_ns
);
1077 status
= BT_SELF_MESSAGE_ITERATOR_STATUS_ERROR
;
1081 BT_LOGV("Found youngest upstream message iterator wrapper: "
1082 "muxer-msg-iter-addr=%p, "
1083 "muxer-upstream-msg-iter-wrap-addr=%p, "
1085 muxer_msg_iter
, muxer_upstream_msg_iter
, next_return_ts
);
1086 BT_ASSERT(status
== BT_SELF_MESSAGE_ITERATOR_STATUS_OK
);
1087 BT_ASSERT(muxer_upstream_msg_iter
);
1090 * Consume from the queue's head: other side
1091 * (muxer_upstream_msg_iter_next()) writes to the tail.
1093 *msg
= g_queue_pop_head(muxer_upstream_msg_iter
->msgs
);
1095 muxer_msg_iter
->last_returned_ts_ns
= next_return_ts
;
1102 bt_self_message_iterator_status
muxer_msg_iter_do_next(
1103 struct muxer_comp
*muxer_comp
,
1104 struct muxer_msg_iter
*muxer_msg_iter
,
1105 bt_message_array_const msgs
, uint64_t capacity
,
1108 bt_self_message_iterator_status status
=
1109 BT_SELF_MESSAGE_ITERATOR_STATUS_OK
;
1112 while (i
< capacity
&& status
== BT_SELF_MESSAGE_ITERATOR_STATUS_OK
) {
1113 status
= muxer_msg_iter_do_next_one(muxer_comp
,
1114 muxer_msg_iter
, &msgs
[i
]);
1115 if (status
== BT_SELF_MESSAGE_ITERATOR_STATUS_OK
) {
1122 * Even if muxer_msg_iter_do_next_one() returned
1123 * something else than
1124 * BT_MESSAGE_ITERATOR_STATUS_OK, we accumulated
1125 * message objects in the output message
1126 * array, so we need to return
1127 * BT_MESSAGE_ITERATOR_STATUS_OK so that they are
1128 * transfered to downstream. This other status occurs
1129 * again the next time muxer_msg_iter_do_next() is
1130 * called, possibly without any accumulated
1131 * message, in which case we'll return it.
1134 status
= BT_SELF_MESSAGE_ITERATOR_STATUS_OK
;
1141 void destroy_muxer_msg_iter(struct muxer_msg_iter
*muxer_msg_iter
)
1143 if (!muxer_msg_iter
) {
1147 BT_LOGD("Destroying muxer component's message iterator: "
1148 "muxer-msg-iter-addr=%p", muxer_msg_iter
);
1150 if (muxer_msg_iter
->active_muxer_upstream_msg_iters
) {
1151 BT_LOGD_STR("Destroying muxer's active upstream message iterator wrappers.");
1153 muxer_msg_iter
->active_muxer_upstream_msg_iters
, TRUE
);
1156 if (muxer_msg_iter
->ended_muxer_upstream_msg_iters
) {
1157 BT_LOGD_STR("Destroying muxer's ended upstream message iterator wrappers.");
1159 muxer_msg_iter
->ended_muxer_upstream_msg_iters
, TRUE
);
1162 g_free(muxer_msg_iter
);
1166 int muxer_msg_iter_init_upstream_iterators(struct muxer_comp
*muxer_comp
,
1167 struct muxer_msg_iter
*muxer_msg_iter
)
1173 count
= bt_component_filter_get_input_port_count(
1174 bt_self_component_filter_as_component_filter(
1175 muxer_comp
->self_comp
));
1177 BT_LOGD("No input port to initialize for muxer component's message iterator: "
1178 "muxer-comp-addr=%p, muxer-msg-iter-addr=%p",
1179 muxer_comp
, muxer_msg_iter
);
1183 for (i
= 0; i
< count
; i
++) {
1184 bt_self_component_port_input_message_iterator
*upstream_msg_iter
;
1185 bt_self_component_port_input
*self_port
=
1186 bt_self_component_filter_borrow_input_port_by_index(
1187 muxer_comp
->self_comp
, i
);
1188 const bt_port
*port
;
1190 BT_ASSERT(self_port
);
1191 port
= bt_self_component_port_as_port(
1192 bt_self_component_port_input_as_self_component_port(
1196 if (!bt_port_is_connected(port
)) {
1197 /* Skip non-connected port */
1201 upstream_msg_iter
= create_msg_iter_on_input_port(self_port
);
1202 if (!upstream_msg_iter
) {
1203 /* create_msg_iter_on_input_port() logs errors */
1204 BT_ASSERT(!upstream_msg_iter
);
1209 ret
= muxer_msg_iter_add_upstream_msg_iter(muxer_msg_iter
,
1211 bt_self_component_port_input_message_iterator_put_ref(
1214 /* muxer_msg_iter_add_upstream_msg_iter() logs errors */
1224 bt_self_message_iterator_status
muxer_msg_iter_init(
1225 bt_self_message_iterator
*self_msg_iter
,
1226 bt_self_component_filter
*self_comp
,
1227 bt_self_component_port_output
*port
)
1229 struct muxer_comp
*muxer_comp
= NULL
;
1230 struct muxer_msg_iter
*muxer_msg_iter
= NULL
;
1231 bt_self_message_iterator_status status
=
1232 BT_SELF_MESSAGE_ITERATOR_STATUS_OK
;
1235 muxer_comp
= bt_self_component_get_data(
1236 bt_self_component_filter_as_self_component(self_comp
));
1237 BT_ASSERT(muxer_comp
);
1238 BT_LOGD("Initializing muxer component's message iterator: "
1239 "comp-addr=%p, muxer-comp-addr=%p, msg-iter-addr=%p",
1240 self_comp
, muxer_comp
, self_msg_iter
);
1242 if (muxer_comp
->initializing_muxer_msg_iter
) {
1244 * Weird, unhandled situation detected: downstream
1245 * creates a muxer message iterator while creating
1246 * another muxer message iterator (same component).
1248 BT_LOGE("Recursive initialization of muxer component's message iterator: "
1249 "comp-addr=%p, muxer-comp-addr=%p, msg-iter-addr=%p",
1250 self_comp
, muxer_comp
, self_msg_iter
);
1254 muxer_comp
->initializing_muxer_msg_iter
= true;
1255 muxer_msg_iter
= g_new0(struct muxer_msg_iter
, 1);
1256 if (!muxer_msg_iter
) {
1257 BT_LOGE_STR("Failed to allocate one muxer component's message iterator.");
1261 muxer_msg_iter
->last_returned_ts_ns
= INT64_MIN
;
1262 muxer_msg_iter
->active_muxer_upstream_msg_iters
=
1263 g_ptr_array_new_with_free_func(
1264 (GDestroyNotify
) destroy_muxer_upstream_msg_iter
);
1265 if (!muxer_msg_iter
->active_muxer_upstream_msg_iters
) {
1266 BT_LOGE_STR("Failed to allocate a GPtrArray.");
1270 muxer_msg_iter
->ended_muxer_upstream_msg_iters
=
1271 g_ptr_array_new_with_free_func(
1272 (GDestroyNotify
) destroy_muxer_upstream_msg_iter
);
1273 if (!muxer_msg_iter
->ended_muxer_upstream_msg_iters
) {
1274 BT_LOGE_STR("Failed to allocate a GPtrArray.");
1278 ret
= muxer_msg_iter_init_upstream_iterators(muxer_comp
,
1281 BT_LOGE("Cannot initialize connected input ports for muxer component's message iterator: "
1282 "comp-addr=%p, muxer-comp-addr=%p, "
1283 "muxer-msg-iter-addr=%p, msg-iter-addr=%p, ret=%d",
1284 self_comp
, muxer_comp
, muxer_msg_iter
,
1285 self_msg_iter
, ret
);
1289 bt_self_message_iterator_set_data(self_msg_iter
, muxer_msg_iter
);
1290 BT_LOGD("Initialized muxer component's message iterator: "
1291 "comp-addr=%p, muxer-comp-addr=%p, muxer-msg-iter-addr=%p, "
1293 self_comp
, muxer_comp
, muxer_msg_iter
, self_msg_iter
);
1297 destroy_muxer_msg_iter(muxer_msg_iter
);
1298 bt_self_message_iterator_set_data(self_msg_iter
, NULL
);
1299 status
= BT_SELF_MESSAGE_ITERATOR_STATUS_ERROR
;
1302 muxer_comp
->initializing_muxer_msg_iter
= false;
1307 void muxer_msg_iter_finalize(bt_self_message_iterator
*self_msg_iter
)
1309 struct muxer_msg_iter
*muxer_msg_iter
=
1310 bt_self_message_iterator_get_data(self_msg_iter
);
1311 bt_self_component
*self_comp
= NULL
;
1312 struct muxer_comp
*muxer_comp
= NULL
;
1314 self_comp
= bt_self_message_iterator_borrow_component(
1316 BT_ASSERT(self_comp
);
1317 muxer_comp
= bt_self_component_get_data(self_comp
);
1318 BT_LOGD("Finalizing muxer component's message iterator: "
1319 "comp-addr=%p, muxer-comp-addr=%p, muxer-msg-iter-addr=%p, "
1321 self_comp
, muxer_comp
, muxer_msg_iter
, self_msg_iter
);
1323 if (muxer_msg_iter
) {
1324 destroy_muxer_msg_iter(muxer_msg_iter
);
1329 bt_self_message_iterator_status
muxer_msg_iter_next(
1330 bt_self_message_iterator
*self_msg_iter
,
1331 bt_message_array_const msgs
, uint64_t capacity
,
1334 bt_self_message_iterator_status status
;
1335 struct muxer_msg_iter
*muxer_msg_iter
=
1336 bt_self_message_iterator_get_data(self_msg_iter
);
1337 bt_self_component
*self_comp
= NULL
;
1338 struct muxer_comp
*muxer_comp
= NULL
;
1340 BT_ASSERT(muxer_msg_iter
);
1341 self_comp
= bt_self_message_iterator_borrow_component(
1343 BT_ASSERT(self_comp
);
1344 muxer_comp
= bt_self_component_get_data(self_comp
);
1345 BT_ASSERT(muxer_comp
);
1346 BT_LOGV("Muxer component's message iterator's \"next\" method called: "
1347 "comp-addr=%p, muxer-comp-addr=%p, muxer-msg-iter-addr=%p, "
1349 self_comp
, muxer_comp
, muxer_msg_iter
, self_msg_iter
);
1351 status
= muxer_msg_iter_do_next(muxer_comp
, muxer_msg_iter
,
1352 msgs
, capacity
, count
);
1354 BT_LOGE("Cannot get next message: "
1355 "comp-addr=%p, muxer-comp-addr=%p, muxer-msg-iter-addr=%p, "
1356 "msg-iter-addr=%p, status=%s",
1357 self_comp
, muxer_comp
, muxer_msg_iter
, self_msg_iter
,
1358 bt_common_self_message_iterator_status_string(status
));
1360 BT_LOGV("Returning from muxer component's message iterator's \"next\" method: "
1362 bt_common_self_message_iterator_status_string(status
));
1369 bt_self_component_status
muxer_input_port_connected(
1370 bt_self_component_filter
*self_comp
,
1371 bt_self_component_port_input
*self_port
,
1372 const bt_port_output
*other_port
)
1374 bt_self_component_status status
;
1376 status
= add_available_input_port(self_comp
);
1379 * Only way to report an error later since this
1380 * method does not return anything.
1382 BT_LOGE("Cannot add one muxer component's input port: "
1384 bt_self_component_status_string(status
));
1393 bt_bool
muxer_upstream_msg_iters_can_all_seek_beginning(
1394 GPtrArray
*muxer_upstream_msg_iters
)
1397 bt_bool ret
= BT_TRUE
;
1399 for (i
= 0; i
< muxer_upstream_msg_iters
->len
; i
++) {
1400 struct muxer_upstream_msg_iter
*upstream_msg_iter
=
1401 muxer_upstream_msg_iters
->pdata
[i
];
1403 if (!bt_self_component_port_input_message_iterator_can_seek_beginning(
1404 upstream_msg_iter
->msg_iter
)) {
1415 bt_bool
muxer_msg_iter_can_seek_beginning(
1416 bt_self_message_iterator
*self_msg_iter
)
1418 struct muxer_msg_iter
*muxer_msg_iter
=
1419 bt_self_message_iterator_get_data(self_msg_iter
);
1420 bt_bool ret
= BT_TRUE
;
1422 if (!muxer_upstream_msg_iters_can_all_seek_beginning(
1423 muxer_msg_iter
->active_muxer_upstream_msg_iters
)) {
1428 if (!muxer_upstream_msg_iters_can_all_seek_beginning(
1429 muxer_msg_iter
->ended_muxer_upstream_msg_iters
)) {
1439 bt_self_message_iterator_status
muxer_msg_iter_seek_beginning(
1440 bt_self_message_iterator
*self_msg_iter
)
1442 struct muxer_msg_iter
*muxer_msg_iter
=
1443 bt_self_message_iterator_get_data(self_msg_iter
);
1444 bt_message_iterator_status status
= BT_MESSAGE_ITERATOR_STATUS_OK
;
1447 /* Seek all ended upstream iterators first */
1448 for (i
= 0; i
< muxer_msg_iter
->ended_muxer_upstream_msg_iters
->len
;
1450 struct muxer_upstream_msg_iter
*upstream_msg_iter
=
1451 muxer_msg_iter
->ended_muxer_upstream_msg_iters
->pdata
[i
];
1453 status
= bt_self_component_port_input_message_iterator_seek_beginning(
1454 upstream_msg_iter
->msg_iter
);
1455 if (status
!= BT_MESSAGE_ITERATOR_STATUS_OK
) {
1459 empty_message_queue(upstream_msg_iter
);
1462 /* Seek all previously active upstream iterators */
1463 for (i
= 0; i
< muxer_msg_iter
->active_muxer_upstream_msg_iters
->len
;
1465 struct muxer_upstream_msg_iter
*upstream_msg_iter
=
1466 muxer_msg_iter
->active_muxer_upstream_msg_iters
->pdata
[i
];
1468 status
= bt_self_component_port_input_message_iterator_seek_beginning(
1469 upstream_msg_iter
->msg_iter
);
1470 if (status
!= BT_MESSAGE_ITERATOR_STATUS_OK
) {
1474 empty_message_queue(upstream_msg_iter
);
1477 /* Make them all active */
1478 for (i
= 0; i
< muxer_msg_iter
->ended_muxer_upstream_msg_iters
->len
;
1480 struct muxer_upstream_msg_iter
*upstream_msg_iter
=
1481 muxer_msg_iter
->ended_muxer_upstream_msg_iters
->pdata
[i
];
1483 g_ptr_array_add(muxer_msg_iter
->active_muxer_upstream_msg_iters
,
1485 muxer_msg_iter
->ended_muxer_upstream_msg_iters
->pdata
[i
] = NULL
;
1488 g_ptr_array_remove_range(muxer_msg_iter
->ended_muxer_upstream_msg_iters
,
1489 0, muxer_msg_iter
->ended_muxer_upstream_msg_iters
->len
);
1490 muxer_msg_iter
->last_returned_ts_ns
= INT64_MIN
;
1491 muxer_msg_iter
->clock_class_expectation
=
1492 MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_ANY
;
1495 return (bt_self_message_iterator_status
) status
;