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/values-internal.h>
30 #include <babeltrace/graph/component-internal.h>
31 #include <babeltrace/graph/notification-iterator-internal.h>
32 #include <babeltrace/graph/connection-internal.h>
33 #include <plugins-common.h>
37 #include <babeltrace/assert-internal.h>
41 #define ASSUME_ABSOLUTE_CLOCK_CLASSES_PARAM_NAME "assume-absolute-clock-classes"
46 * bt_private_connection_private_notification_iterator *
49 GPtrArray
*muxer_notif_iters
;
52 struct bt_private_component
*priv_comp
;
53 unsigned int next_port_num
;
54 size_t available_input_ports
;
56 bool initializing_muxer_notif_iter
;
57 bool assume_absolute_clock_classes
;
60 struct muxer_upstream_notif_iter
{
61 /* Owned by this, NULL if ended */
62 struct bt_notification_iterator
*notif_iter
;
65 struct bt_notification
*notif
;
68 * This flag is true if the upstream notification iterator's
69 * current notification must be considered for the multiplexing
70 * operations. If the upstream iterator returns
71 * BT_NOTIFICATION_ITERATOR_STATUS_AGAIN, then this object
72 * is considered invalid, because its current notification is
73 * still the previous one, but we already took it into account.
75 * The value of this flag is not important if notif_iter above
76 * is NULL (which means the upstream iterator is finished).
81 enum muxer_notif_iter_clock_class_expectation
{
82 MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_ANY
= 0,
83 MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_ABSOLUTE
,
84 MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_SPEC_UUID
,
85 MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_NO_UUID
,
88 struct muxer_notif_iter
{
90 * Array of struct muxer_upstream_notif_iter * (owned by this).
92 * NOTE: This array is searched in linearly to find the youngest
93 * current notification. Keep this until benchmarks confirm that
94 * another data structure is faster than this for our typical
97 GPtrArray
*muxer_upstream_notif_iters
;
100 * List of "recently" connected input ports (weak) to
101 * handle by this muxer notification iterator.
102 * muxer_port_connected() adds entries to this list, and the
103 * entries are removed when a notification iterator is created
104 * on the port's connection and put into
105 * muxer_upstream_notif_iters above by
106 * muxer_notif_iter_handle_newly_connected_ports().
108 GList
*newly_connected_priv_ports
;
110 /* Next thing to return by the "next" method */
111 struct bt_notification_iterator_next_method_return next_next_return
;
113 /* Last time returned in a notification */
114 int64_t last_returned_ts_ns
;
116 /* Clock class expectation state */
117 enum muxer_notif_iter_clock_class_expectation clock_class_expectation
;
120 * Expected clock class UUID, only valid when
121 * clock_class_expectation is
122 * MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_SPEC_UUID.
124 unsigned char expected_clock_class_uuid
[BABELTRACE_UUID_LEN
];
128 void destroy_muxer_upstream_notif_iter(
129 struct muxer_upstream_notif_iter
*muxer_upstream_notif_iter
)
131 if (!muxer_upstream_notif_iter
) {
135 BT_LOGD("Destroying muxer's upstream notification iterator wrapper: "
136 "addr=%p, notif-iter-addr=%p, is-valid=%d",
137 muxer_upstream_notif_iter
,
138 muxer_upstream_notif_iter
->notif_iter
,
139 muxer_upstream_notif_iter
->is_valid
);
140 bt_put(muxer_upstream_notif_iter
->notif_iter
);
141 bt_put(muxer_upstream_notif_iter
->notif
);
142 g_free(muxer_upstream_notif_iter
);
146 struct muxer_upstream_notif_iter
*muxer_notif_iter_add_upstream_notif_iter(
147 struct muxer_notif_iter
*muxer_notif_iter
,
148 struct bt_notification_iterator
*notif_iter
,
149 struct bt_private_port
*priv_port
)
151 struct muxer_upstream_notif_iter
*muxer_upstream_notif_iter
=
152 g_new0(struct muxer_upstream_notif_iter
, 1);
154 if (!muxer_upstream_notif_iter
) {
155 BT_LOGE_STR("Failed to allocate one muxer's upstream notification iterator wrapper.");
159 muxer_upstream_notif_iter
->notif_iter
= bt_get(notif_iter
);
160 muxer_upstream_notif_iter
->is_valid
= false;
161 g_ptr_array_add(muxer_notif_iter
->muxer_upstream_notif_iters
,
162 muxer_upstream_notif_iter
);
163 BT_LOGD("Added muxer's upstream notification iterator wrapper: "
164 "addr=%p, muxer-notif-iter-addr=%p, notif-iter-addr=%p",
165 muxer_upstream_notif_iter
, muxer_notif_iter
,
169 return muxer_upstream_notif_iter
;
173 enum bt_component_status
ensure_available_input_port(
174 struct bt_private_component
*priv_comp
)
176 struct muxer_comp
*muxer_comp
=
177 bt_private_component_get_user_data(priv_comp
);
178 enum bt_component_status status
= BT_COMPONENT_STATUS_OK
;
179 GString
*port_name
= NULL
;
181 BT_ASSERT(muxer_comp
);
183 if (muxer_comp
->available_input_ports
>= 1) {
187 port_name
= g_string_new("in");
189 BT_LOGE_STR("Failed to allocate a GString.");
190 status
= BT_COMPONENT_STATUS_NOMEM
;
194 g_string_append_printf(port_name
, "%u", muxer_comp
->next_port_num
);
195 status
= bt_private_component_filter_add_input_private_port(
196 priv_comp
, port_name
->str
, NULL
, NULL
);
197 if (status
!= BT_COMPONENT_STATUS_OK
) {
198 BT_LOGE("Cannot add input port to muxer component: "
199 "port-name=\"%s\", comp-addr=%p, status=%s",
200 port_name
->str
, priv_comp
,
201 bt_component_status_string(status
));
205 muxer_comp
->available_input_ports
++;
206 muxer_comp
->next_port_num
++;
207 BT_LOGD("Added one input port to muxer component: "
208 "port-name=\"%s\", comp-addr=%p",
209 port_name
->str
, priv_comp
);
212 g_string_free(port_name
, TRUE
);
219 enum bt_component_status
create_output_port(
220 struct bt_private_component
*priv_comp
)
222 return bt_private_component_filter_add_output_private_port(
223 priv_comp
, "out", NULL
, NULL
);
227 void destroy_muxer_comp(struct muxer_comp
*muxer_comp
)
233 BT_LOGD("Destroying muxer component: muxer-comp-addr=%p, "
234 "muxer-notif-iter-count=%u", muxer_comp
,
235 muxer_comp
->muxer_notif_iters
?
236 muxer_comp
->muxer_notif_iters
->len
: 0);
238 if (muxer_comp
->muxer_notif_iters
) {
239 g_ptr_array_free(muxer_comp
->muxer_notif_iters
, TRUE
);
246 struct bt_value
*get_default_params(void)
248 struct bt_value
*params
;
251 params
= bt_value_map_create();
253 BT_LOGE_STR("Cannot create a map value object.");
257 ret
= bt_value_map_insert_bool(params
,
258 ASSUME_ABSOLUTE_CLOCK_CLASSES_PARAM_NAME
, false);
260 BT_LOGE_STR("Cannot add boolean value to map value object.");
274 int configure_muxer_comp(struct muxer_comp
*muxer_comp
, struct bt_value
*params
)
276 struct bt_value
*default_params
= NULL
;
277 struct bt_value
*real_params
= NULL
;
278 struct bt_value
*assume_absolute_clock_classes
= NULL
;
282 default_params
= get_default_params();
283 if (!default_params
) {
284 BT_LOGE("Cannot get default parameters: "
285 "muxer-comp-addr=%p", muxer_comp
);
289 real_params
= bt_value_map_extend(default_params
, params
);
291 BT_LOGE("Cannot extend default parameters map value: "
292 "muxer-comp-addr=%p, def-params-addr=%p, "
293 "params-addr=%p", muxer_comp
, default_params
,
298 assume_absolute_clock_classes
= bt_value_map_borrow(real_params
,
299 ASSUME_ABSOLUTE_CLOCK_CLASSES_PARAM_NAME
);
300 if (assume_absolute_clock_classes
&&
301 !bt_value_is_bool(assume_absolute_clock_classes
)) {
302 BT_LOGE("Expecting a boolean value for the `%s` parameter: "
303 "muxer-comp-addr=%p, value-type=%s",
304 ASSUME_ABSOLUTE_CLOCK_CLASSES_PARAM_NAME
, muxer_comp
,
305 bt_value_type_string(
306 bt_value_get_type(assume_absolute_clock_classes
)));
310 ret
= bt_value_bool_get(assume_absolute_clock_classes
, &bool_val
);
312 muxer_comp
->assume_absolute_clock_classes
= (bool) bool_val
;
313 BT_LOGD("Configured muxer component: muxer-comp-addr=%p, "
314 "assume-absolute-clock-classes=%d",
315 muxer_comp
, muxer_comp
->assume_absolute_clock_classes
);
322 bt_put(default_params
);
328 enum bt_component_status
muxer_init(
329 struct bt_private_component
*priv_comp
,
330 struct bt_value
*params
, void *init_data
)
333 enum bt_component_status status
= BT_COMPONENT_STATUS_OK
;
334 struct muxer_comp
*muxer_comp
= g_new0(struct muxer_comp
, 1);
336 BT_LOGD("Initializing muxer component: "
337 "comp-addr=%p, params-addr=%p", priv_comp
, params
);
340 BT_LOGE_STR("Failed to allocate one muxer component.");
344 ret
= configure_muxer_comp(muxer_comp
, params
);
346 BT_LOGE("Cannot configure muxer component: "
347 "muxer-comp-addr=%p, params-addr=%p",
352 muxer_comp
->muxer_notif_iters
= g_ptr_array_new();
353 if (!muxer_comp
->muxer_notif_iters
) {
354 BT_LOGE_STR("Failed to allocate a GPtrArray.");
358 muxer_comp
->priv_comp
= priv_comp
;
359 ret
= bt_private_component_set_user_data(priv_comp
, muxer_comp
);
361 status
= ensure_available_input_port(priv_comp
);
362 if (status
!= BT_COMPONENT_STATUS_OK
) {
363 BT_LOGE("Cannot ensure that at least one muxer component's input port is available: "
364 "muxer-comp-addr=%p, status=%s",
366 bt_component_status_string(status
));
370 status
= create_output_port(priv_comp
);
372 BT_LOGE("Cannot create muxer component's output port: "
373 "muxer-comp-addr=%p, status=%s",
375 bt_component_status_string(status
));
379 BT_LOGD("Initialized muxer component: "
380 "comp-addr=%p, params-addr=%p, muxer-comp-addr=%p",
381 priv_comp
, params
, muxer_comp
);
386 destroy_muxer_comp(muxer_comp
);
387 ret
= bt_private_component_set_user_data(priv_comp
, NULL
);
390 if (status
== BT_COMPONENT_STATUS_OK
) {
391 status
= BT_COMPONENT_STATUS_ERROR
;
399 void muxer_finalize(struct bt_private_component
*priv_comp
)
401 struct muxer_comp
*muxer_comp
=
402 bt_private_component_get_user_data(priv_comp
);
404 BT_LOGD("Finalizing muxer component: comp-addr=%p",
406 destroy_muxer_comp(muxer_comp
);
410 struct bt_notification_iterator
*create_notif_iter_on_input_port(
411 struct bt_private_port
*priv_port
, int *ret
)
413 struct bt_port
*port
= bt_port_borrow_from_private(priv_port
);
414 struct bt_notification_iterator
*notif_iter
= NULL
;
415 struct bt_private_connection
*priv_conn
= NULL
;
416 enum bt_connection_status conn_status
;
421 BT_ASSERT(bt_port_is_connected(port
));
422 priv_conn
= bt_private_port_get_private_connection(priv_port
);
423 BT_ASSERT(priv_conn
);
425 // TODO: Advance the iterator to >= the time of the latest
426 // returned notification by the muxer notification
427 // iterator which creates it.
428 conn_status
= bt_private_connection_create_notification_iterator(
429 priv_conn
, ¬if_iter
);
430 if (conn_status
!= BT_CONNECTION_STATUS_OK
) {
431 BT_LOGE("Cannot create upstream notification iterator on input port's connection: "
432 "port-addr=%p, port-name=\"%s\", conn-addr=%p, "
434 port
, bt_port_get_name(port
), priv_conn
,
435 bt_connection_status_string(conn_status
));
440 BT_LOGD("Created upstream notification iterator on input port's connection: "
441 "port-addr=%p, port-name=\"%s\", conn-addr=%p, "
442 "notif-iter-addr=%p",
443 port
, bt_port_get_name(port
), priv_conn
, notif_iter
);
451 enum bt_notification_iterator_status
muxer_upstream_notif_iter_next(
452 struct muxer_upstream_notif_iter
*muxer_upstream_notif_iter
)
454 enum bt_notification_iterator_status status
;
455 struct bt_notification
*notif
= NULL
;
457 BT_LOGV("Calling upstream notification iterator's \"next\" method: "
458 "muxer-upstream-notif-iter-wrap-addr=%p, notif-iter-addr=%p",
459 muxer_upstream_notif_iter
,
460 muxer_upstream_notif_iter
->notif_iter
);
461 status
= bt_private_connection_notification_iterator_next(
462 muxer_upstream_notif_iter
->notif_iter
, ¬if
);
463 BT_LOGV("Upstream notification iterator's \"next\" method returned: "
464 "status=%s", bt_notification_iterator_status_string(status
));
467 case BT_NOTIFICATION_ITERATOR_STATUS_OK
:
469 * Notification iterator's current notification is valid:
470 * it must be considered for muxing operations.
472 BT_LOGV_STR("Validated upstream notification iterator wrapper.");
473 muxer_upstream_notif_iter
->is_valid
= true;
474 BT_MOVE(muxer_upstream_notif_iter
->notif
, notif
);
476 case BT_NOTIFICATION_ITERATOR_STATUS_AGAIN
:
478 * Notification iterator's current notification is not
479 * valid anymore. Return
480 * BT_NOTIFICATION_ITERATOR_STATUS_AGAIN
483 BT_LOGV_STR("Invalidated upstream notification iterator wrapper because of BT_NOTIFICATION_ITERATOR_STATUS_AGAIN.");
484 muxer_upstream_notif_iter
->is_valid
= false;
486 case BT_NOTIFICATION_ITERATOR_STATUS_END
: /* Fall-through. */
487 case BT_NOTIFICATION_ITERATOR_STATUS_CANCELED
:
489 * Notification iterator reached the end: release it. It
490 * won't be considered again to find the youngest
493 BT_LOGV_STR("Invalidated upstream notification iterator wrapper because of BT_NOTIFICATION_ITERATOR_STATUS_END or BT_NOTIFICATION_ITERATOR_STATUS_CANCELED.");
494 BT_PUT(muxer_upstream_notif_iter
->notif_iter
);
495 muxer_upstream_notif_iter
->is_valid
= false;
496 status
= BT_NOTIFICATION_ITERATOR_STATUS_OK
;
499 /* Error or unsupported status code */
500 BT_LOGE("Error or unsupported status code: "
501 "status-code=%d", status
);
502 status
= BT_NOTIFICATION_ITERATOR_STATUS_ERROR
;
511 int muxer_notif_iter_handle_newly_connected_ports(
512 struct muxer_notif_iter
*muxer_notif_iter
)
516 BT_LOGV("Handling newly connected ports: "
517 "muxer-notif-iter-addr=%p", muxer_notif_iter
);
520 * Here we create one upstream notification iterator for each
521 * newly connected port. We do not perform an initial "next" on
522 * those new upstream notification iterators: they are
523 * invalidated, to be validated later. The list of newly
524 * connected ports to handle here is updated by
525 * muxer_port_connected().
528 GList
*node
= muxer_notif_iter
->newly_connected_priv_ports
;
529 struct bt_private_port
*priv_port
;
530 struct bt_port
*port
;
531 struct bt_notification_iterator
*upstream_notif_iter
= NULL
;
532 struct muxer_upstream_notif_iter
*muxer_upstream_notif_iter
;
538 priv_port
= node
->data
;
539 port
= bt_port_borrow_from_private(priv_port
);
542 if (!bt_port_is_connected(port
)) {
544 * Looks like this port is not connected
545 * anymore: we can't create an upstream
546 * notification iterator on its (non-existing)
547 * connection in this case.
552 upstream_notif_iter
= create_notif_iter_on_input_port(priv_port
,
555 /* create_notif_iter_on_input_port() logs errors */
556 BT_ASSERT(!upstream_notif_iter
);
560 muxer_upstream_notif_iter
=
561 muxer_notif_iter_add_upstream_notif_iter(
562 muxer_notif_iter
, upstream_notif_iter
,
564 BT_PUT(upstream_notif_iter
);
565 if (!muxer_upstream_notif_iter
) {
567 * muxer_notif_iter_add_upstream_notif_iter()
574 bt_put(upstream_notif_iter
);
575 muxer_notif_iter
->newly_connected_priv_ports
=
577 muxer_notif_iter
->newly_connected_priv_ports
,
593 int get_notif_ts_ns(struct muxer_comp
*muxer_comp
,
594 struct muxer_notif_iter
*muxer_notif_iter
,
595 struct bt_notification
*notif
, int64_t last_returned_ts_ns
,
598 struct bt_clock_class_priority_map
*cc_prio_map
= NULL
;
599 struct bt_clock_class
*clock_class
= NULL
;
600 struct bt_clock_value
*clock_value
= NULL
;
601 struct bt_event
*event
= NULL
;
603 const unsigned char *cc_uuid
;
609 BT_LOGV("Getting notification's timestamp: "
610 "muxer-notif-iter-addr=%p, notif-addr=%p, "
611 "last-returned-ts=%" PRId64
,
612 muxer_notif_iter
, notif
, last_returned_ts_ns
);
614 switch (bt_notification_get_type(notif
)) {
615 case BT_NOTIFICATION_TYPE_EVENT
:
617 bt_notification_event_borrow_clock_class_priority_map(
621 case BT_NOTIFICATION_TYPE_INACTIVITY
:
623 bt_notification_inactivity_borrow_clock_class_priority_map(
627 /* All the other notifications have a higher priority */
628 BT_LOGV_STR("Notification has no timestamp: using the last returned timestamp.");
629 *ts_ns
= last_returned_ts_ns
;
634 BT_LOGE("Cannot get notification's clock class priority map: "
635 "notif-addr=%p", notif
);
640 * If the clock class priority map is empty, then we consider
641 * that this notification has no time. In this case it's always
644 if (bt_clock_class_priority_map_get_clock_class_count(cc_prio_map
) == 0) {
645 BT_LOGV_STR("Notification's clock class priority map contains 0 clock classes: "
646 "using the last returned timestamp.");
647 *ts_ns
= last_returned_ts_ns
;
652 bt_clock_class_priority_map_borrow_highest_priority_clock_class(
655 BT_LOGE("Cannot get the clock class with the highest priority from clock class priority map: "
656 "cc-prio-map-addr=%p", cc_prio_map
);
660 cc_uuid
= bt_clock_class_get_uuid(clock_class
);
661 cc_name
= bt_clock_class_get_name(clock_class
);
663 if (muxer_notif_iter
->clock_class_expectation
==
664 MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_ANY
) {
666 * This is the first clock class that this muxer
667 * notification iterator encounters. Its properties
668 * determine what to expect for the whole lifetime of
669 * the iterator without a true
670 * `assume-absolute-clock-classes` parameter.
672 if (bt_clock_class_is_absolute(clock_class
)) {
673 /* Expect absolute clock classes */
674 muxer_notif_iter
->clock_class_expectation
=
675 MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_ABSOLUTE
;
679 * Expect non-absolute clock classes
680 * with a specific UUID.
682 muxer_notif_iter
->clock_class_expectation
=
683 MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_SPEC_UUID
;
684 memcpy(muxer_notif_iter
->expected_clock_class_uuid
,
685 cc_uuid
, BABELTRACE_UUID_LEN
);
688 * Expect non-absolute clock classes
691 muxer_notif_iter
->clock_class_expectation
=
692 MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_NO_UUID
;
697 if (!muxer_comp
->assume_absolute_clock_classes
) {
698 switch (muxer_notif_iter
->clock_class_expectation
) {
699 case MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_ABSOLUTE
:
700 if (!bt_clock_class_is_absolute(clock_class
)) {
701 BT_LOGE("Expecting an absolute clock class, "
702 "but got a non-absolute one: "
703 "clock-class-addr=%p, clock-class-name=\"%s\"",
704 clock_class
, cc_name
);
708 case MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_NO_UUID
:
709 if (bt_clock_class_is_absolute(clock_class
)) {
710 BT_LOGE("Expecting a non-absolute clock class with no UUID, "
711 "but got an absolute one: "
712 "clock-class-addr=%p, clock-class-name=\"%s\"",
713 clock_class
, cc_name
);
718 BT_LOGE("Expecting a non-absolute clock class with no UUID, "
719 "but got one with a UUID: "
720 "clock-class-addr=%p, clock-class-name=\"%s\", "
721 "uuid=\"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\"",
722 clock_class
, cc_name
,
723 (unsigned int) cc_uuid
[0],
724 (unsigned int) cc_uuid
[1],
725 (unsigned int) cc_uuid
[2],
726 (unsigned int) cc_uuid
[3],
727 (unsigned int) cc_uuid
[4],
728 (unsigned int) cc_uuid
[5],
729 (unsigned int) cc_uuid
[6],
730 (unsigned int) cc_uuid
[7],
731 (unsigned int) cc_uuid
[8],
732 (unsigned int) cc_uuid
[9],
733 (unsigned int) cc_uuid
[10],
734 (unsigned int) cc_uuid
[11],
735 (unsigned int) cc_uuid
[12],
736 (unsigned int) cc_uuid
[13],
737 (unsigned int) cc_uuid
[14],
738 (unsigned int) cc_uuid
[15]);
742 case MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_SPEC_UUID
:
743 if (bt_clock_class_is_absolute(clock_class
)) {
744 BT_LOGE("Expecting a non-absolute clock class with a specific UUID, "
745 "but got an absolute one: "
746 "clock-class-addr=%p, clock-class-name=\"%s\"",
747 clock_class
, cc_name
);
752 BT_LOGE("Expecting a non-absolute clock class with a specific UUID, "
753 "but got one with no UUID: "
754 "clock-class-addr=%p, clock-class-name=\"%s\"",
755 clock_class
, cc_name
);
759 if (memcmp(muxer_notif_iter
->expected_clock_class_uuid
,
760 cc_uuid
, BABELTRACE_UUID_LEN
) != 0) {
761 BT_LOGE("Expecting a non-absolute clock class with a specific UUID, "
762 "but got one with different UUID: "
763 "clock-class-addr=%p, clock-class-name=\"%s\", "
764 "expected-uuid=\"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\", "
765 "uuid=\"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\"",
766 clock_class
, cc_name
,
767 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[0],
768 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[1],
769 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[2],
770 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[3],
771 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[4],
772 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[5],
773 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[6],
774 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[7],
775 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[8],
776 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[9],
777 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[10],
778 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[11],
779 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[12],
780 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[13],
781 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[14],
782 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[15],
783 (unsigned int) cc_uuid
[0],
784 (unsigned int) cc_uuid
[1],
785 (unsigned int) cc_uuid
[2],
786 (unsigned int) cc_uuid
[3],
787 (unsigned int) cc_uuid
[4],
788 (unsigned int) cc_uuid
[5],
789 (unsigned int) cc_uuid
[6],
790 (unsigned int) cc_uuid
[7],
791 (unsigned int) cc_uuid
[8],
792 (unsigned int) cc_uuid
[9],
793 (unsigned int) cc_uuid
[10],
794 (unsigned int) cc_uuid
[11],
795 (unsigned int) cc_uuid
[12],
796 (unsigned int) cc_uuid
[13],
797 (unsigned int) cc_uuid
[14],
798 (unsigned int) cc_uuid
[15]);
804 BT_LOGF("Unexpected clock class expectation: "
805 "expectation-code=%d",
806 muxer_notif_iter
->clock_class_expectation
);
811 switch (bt_notification_get_type(notif
)) {
812 case BT_NOTIFICATION_TYPE_EVENT
:
813 event
= bt_notification_event_borrow_event(notif
);
815 clock_value
= bt_event_borrow_clock_value(event
,
818 case BT_NOTIFICATION_TYPE_INACTIVITY
:
819 clock_value
= bt_notification_inactivity_borrow_clock_value(
823 BT_LOGF("Unexpected notification type at this point: "
824 "type=%d", bt_notification_get_type(notif
));
829 BT_LOGE("Cannot get notification's clock value for clock class: "
830 "clock-class-addr=%p, clock-class-name=\"%s\"",
831 clock_class
, cc_name
);
835 ret
= bt_clock_value_get_value_ns_from_epoch(clock_value
, ts_ns
);
837 BT_LOGE("Cannot get nanoseconds from Epoch of clock value: "
838 "clock-value-addr=%p", clock_value
);
849 BT_LOGV("Found notification's timestamp: "
850 "muxer-notif-iter-addr=%p, notif-addr=%p, "
851 "last-returned-ts=%" PRId64
", ts=%" PRId64
,
852 muxer_notif_iter
, notif
, last_returned_ts_ns
,
860 * This function finds the youngest available notification amongst the
861 * non-ended upstream notification iterators and returns the upstream
862 * notification iterator which has it, or
863 * BT_NOTIFICATION_ITERATOR_STATUS_END if there's no available
866 * This function does NOT:
868 * * Update any upstream notification iterator.
869 * * Check for newly connected ports.
870 * * Check the upstream notification iterators to retry.
872 * On sucess, this function sets *muxer_upstream_notif_iter to the
873 * upstream notification iterator of which the current notification is
874 * the youngest, and sets *ts_ns to its time.
877 enum bt_notification_iterator_status
878 muxer_notif_iter_youngest_upstream_notif_iter(
879 struct muxer_comp
*muxer_comp
,
880 struct muxer_notif_iter
*muxer_notif_iter
,
881 struct muxer_upstream_notif_iter
**muxer_upstream_notif_iter
,
886 int64_t youngest_ts_ns
= INT64_MAX
;
887 enum bt_notification_iterator_status status
=
888 BT_NOTIFICATION_ITERATOR_STATUS_OK
;
890 BT_ASSERT(muxer_comp
);
891 BT_ASSERT(muxer_notif_iter
);
892 BT_ASSERT(muxer_upstream_notif_iter
);
893 *muxer_upstream_notif_iter
= NULL
;
895 for (i
= 0; i
< muxer_notif_iter
->muxer_upstream_notif_iters
->len
; i
++) {
896 struct bt_notification
*notif
;
897 struct muxer_upstream_notif_iter
*cur_muxer_upstream_notif_iter
=
898 g_ptr_array_index(muxer_notif_iter
->muxer_upstream_notif_iters
, i
);
901 if (!cur_muxer_upstream_notif_iter
->notif_iter
) {
902 /* This upstream notification iterator is ended */
903 BT_LOGV("Skipping ended upstream notification iterator: "
904 "muxer-upstream-notif-iter-wrap-addr=%p",
905 cur_muxer_upstream_notif_iter
);
909 BT_ASSERT(cur_muxer_upstream_notif_iter
->is_valid
);
910 notif
= cur_muxer_upstream_notif_iter
->notif
;
912 ret
= get_notif_ts_ns(muxer_comp
, muxer_notif_iter
, notif
,
913 muxer_notif_iter
->last_returned_ts_ns
, ¬if_ts_ns
);
915 /* get_notif_ts_ns() logs errors */
916 *muxer_upstream_notif_iter
= NULL
;
917 status
= BT_NOTIFICATION_ITERATOR_STATUS_ERROR
;
921 if (notif_ts_ns
<= youngest_ts_ns
) {
922 *muxer_upstream_notif_iter
=
923 cur_muxer_upstream_notif_iter
;
924 youngest_ts_ns
= notif_ts_ns
;
925 *ts_ns
= youngest_ts_ns
;
929 if (!*muxer_upstream_notif_iter
) {
930 status
= BT_NOTIFICATION_ITERATOR_STATUS_END
;
939 enum bt_notification_iterator_status
validate_muxer_upstream_notif_iter(
940 struct muxer_upstream_notif_iter
*muxer_upstream_notif_iter
)
942 enum bt_notification_iterator_status status
=
943 BT_NOTIFICATION_ITERATOR_STATUS_OK
;
945 BT_LOGV("Validating muxer's upstream notification iterator wrapper: "
946 "muxer-upstream-notif-iter-wrap-addr=%p",
947 muxer_upstream_notif_iter
);
949 if (muxer_upstream_notif_iter
->is_valid
||
950 !muxer_upstream_notif_iter
->notif_iter
) {
954 /* muxer_upstream_notif_iter_next() logs details/errors */
955 status
= muxer_upstream_notif_iter_next(muxer_upstream_notif_iter
);
962 enum bt_notification_iterator_status
validate_muxer_upstream_notif_iters(
963 struct muxer_notif_iter
*muxer_notif_iter
)
965 enum bt_notification_iterator_status status
=
966 BT_NOTIFICATION_ITERATOR_STATUS_OK
;
969 BT_LOGV("Validating muxer's upstream notification iterator wrappers: "
970 "muxer-notif-iter-addr=%p", muxer_notif_iter
);
972 for (i
= 0; i
< muxer_notif_iter
->muxer_upstream_notif_iters
->len
; i
++) {
973 struct muxer_upstream_notif_iter
*muxer_upstream_notif_iter
=
975 muxer_notif_iter
->muxer_upstream_notif_iters
,
978 status
= validate_muxer_upstream_notif_iter(
979 muxer_upstream_notif_iter
);
980 if (status
!= BT_NOTIFICATION_ITERATOR_STATUS_OK
) {
982 BT_LOGE("Cannot validate muxer's upstream notification iterator wrapper: "
983 "muxer-notif-iter-addr=%p, "
984 "muxer-upstream-notif-iter-wrap-addr=%p",
986 muxer_upstream_notif_iter
);
988 BT_LOGV("Cannot validate muxer's upstream notification iterator wrapper: "
989 "muxer-notif-iter-addr=%p, "
990 "muxer-upstream-notif-iter-wrap-addr=%p",
992 muxer_upstream_notif_iter
);
999 * Remove this muxer upstream notification iterator
1000 * if it's ended or canceled.
1002 if (!muxer_upstream_notif_iter
->notif_iter
) {
1004 * Use g_ptr_array_remove_fast() because the
1005 * order of those elements is not important.
1007 BT_LOGV("Removing muxer's upstream notification iterator wrapper: ended or canceled: "
1008 "muxer-notif-iter-addr=%p, "
1009 "muxer-upstream-notif-iter-wrap-addr=%p",
1010 muxer_notif_iter
, muxer_upstream_notif_iter
);
1011 g_ptr_array_remove_index_fast(
1012 muxer_notif_iter
->muxer_upstream_notif_iters
,
1023 struct bt_notification_iterator_next_method_return
muxer_notif_iter_do_next(
1024 struct muxer_comp
*muxer_comp
,
1025 struct muxer_notif_iter
*muxer_notif_iter
)
1027 struct muxer_upstream_notif_iter
*muxer_upstream_notif_iter
= NULL
;
1028 struct bt_notification_iterator_next_method_return next_return
= {
1029 .notification
= NULL
,
1030 .status
= BT_NOTIFICATION_ITERATOR_STATUS_OK
,
1032 int64_t next_return_ts
;
1035 int ret
= muxer_notif_iter_handle_newly_connected_ports(
1039 BT_LOGE("Cannot handle newly connected input ports for muxer's notification iterator: "
1040 "muxer-comp-addr=%p, muxer-notif-iter-addr=%p, "
1042 muxer_comp
, muxer_notif_iter
, ret
);
1043 next_return
.status
=
1044 BT_NOTIFICATION_ITERATOR_STATUS_ERROR
;
1048 next_return
.status
=
1049 validate_muxer_upstream_notif_iters(muxer_notif_iter
);
1050 if (next_return
.status
!= BT_NOTIFICATION_ITERATOR_STATUS_OK
) {
1051 /* validate_muxer_upstream_notif_iters() logs details */
1056 * At this point, we know that all the existing upstream
1057 * notification iterators are valid. However the
1058 * operations to validate them (during
1059 * validate_muxer_upstream_notif_iters()) may have
1060 * connected new ports. If no ports were connected
1061 * during this operation, exit the loop.
1063 if (!muxer_notif_iter
->newly_connected_priv_ports
) {
1064 BT_LOGV("Not breaking this loop: muxer's notification iterator still has newly connected input ports to handle: "
1065 "muxer-comp-addr=%p", muxer_comp
);
1070 BT_ASSERT(!muxer_notif_iter
->newly_connected_priv_ports
);
1073 * At this point we know that all the existing upstream
1074 * notification iterators are valid. We can find the one,
1075 * amongst those, of which the current notification is the
1078 next_return
.status
=
1079 muxer_notif_iter_youngest_upstream_notif_iter(muxer_comp
,
1080 muxer_notif_iter
, &muxer_upstream_notif_iter
,
1082 if (next_return
.status
< 0 ||
1083 next_return
.status
== BT_NOTIFICATION_ITERATOR_STATUS_END
||
1084 next_return
.status
== BT_NOTIFICATION_ITERATOR_STATUS_CANCELED
) {
1085 if (next_return
.status
< 0) {
1086 BT_LOGE("Cannot find the youngest upstream notification iterator wrapper: "
1088 bt_notification_iterator_status_string(next_return
.status
));
1090 BT_LOGV("Cannot find the youngest upstream notification iterator wrapper: "
1092 bt_notification_iterator_status_string(next_return
.status
));
1098 if (next_return_ts
< muxer_notif_iter
->last_returned_ts_ns
) {
1099 BT_LOGE("Youngest upstream notification iterator wrapper's timestamp is less than muxer's notification iterator's last returned timestamp: "
1100 "muxer-notif-iter-addr=%p, ts=%" PRId64
", "
1101 "last-returned-ts=%" PRId64
,
1102 muxer_notif_iter
, next_return_ts
,
1103 muxer_notif_iter
->last_returned_ts_ns
);
1104 next_return
.status
= BT_NOTIFICATION_ITERATOR_STATUS_ERROR
;
1108 BT_LOGV("Found youngest upstream notification iterator wrapper: "
1109 "muxer-notif-iter-addr=%p, "
1110 "muxer-upstream-notif-iter-wrap-addr=%p, "
1112 muxer_notif_iter
, muxer_upstream_notif_iter
, next_return_ts
);
1113 BT_ASSERT(next_return
.status
== BT_NOTIFICATION_ITERATOR_STATUS_OK
);
1114 BT_ASSERT(muxer_upstream_notif_iter
);
1115 next_return
.notification
= bt_get(muxer_upstream_notif_iter
->notif
);
1116 BT_ASSERT(next_return
.notification
);
1119 * We invalidate the upstream notification iterator so that, the
1120 * next time this function is called,
1121 * validate_muxer_upstream_notif_iters() will make it valid.
1123 muxer_upstream_notif_iter
->is_valid
= false;
1124 muxer_notif_iter
->last_returned_ts_ns
= next_return_ts
;
1131 void destroy_muxer_notif_iter(struct muxer_notif_iter
*muxer_notif_iter
)
1133 if (!muxer_notif_iter
) {
1137 BT_LOGD("Destroying muxer component's notification iterator: "
1138 "muxer-notif-iter-addr=%p", muxer_notif_iter
);
1140 if (muxer_notif_iter
->muxer_upstream_notif_iters
) {
1141 BT_LOGD_STR("Destroying muxer's upstream notification iterator wrappers.");
1143 muxer_notif_iter
->muxer_upstream_notif_iters
, TRUE
);
1146 g_list_free(muxer_notif_iter
->newly_connected_priv_ports
);
1147 g_free(muxer_notif_iter
);
1151 int muxer_notif_iter_init_newly_connected_ports(struct muxer_comp
*muxer_comp
,
1152 struct muxer_notif_iter
*muxer_notif_iter
)
1154 struct bt_component
*comp
;
1160 * Add the connected input ports to this muxer notification
1161 * iterator's list of newly connected ports. They will be
1162 * handled by muxer_notif_iter_handle_newly_connected_ports().
1164 comp
= bt_component_borrow_from_private(muxer_comp
->priv_comp
);
1166 count
= bt_component_filter_get_input_port_count(comp
);
1168 BT_LOGD("No input port to initialize for muxer component's notification iterator: "
1169 "muxer-comp-addr=%p, muxer-notif-iter-addr=%p",
1170 muxer_comp
, muxer_notif_iter
);
1174 for (i
= 0; i
< count
; i
++) {
1175 struct bt_private_port
*priv_port
=
1176 bt_private_component_filter_get_input_private_port_by_index(
1177 muxer_comp
->priv_comp
, i
);
1178 struct bt_port
*port
;
1180 BT_ASSERT(priv_port
);
1181 port
= bt_port_borrow_from_private(priv_port
);
1184 if (!bt_port_is_connected(port
)) {
1185 BT_LOGD("Skipping input port: not connected: "
1186 "muxer-comp-addr=%p, port-addr=%p, port-name\"%s\"",
1187 muxer_comp
, port
, bt_port_get_name(port
));
1193 muxer_notif_iter
->newly_connected_priv_ports
=
1195 muxer_notif_iter
->newly_connected_priv_ports
,
1197 if (!muxer_notif_iter
->newly_connected_priv_ports
) {
1198 BT_LOGE("Cannot append port to muxer's notification iterator list of newly connected input ports: "
1199 "port-addr=%p, port-name=\"%s\", "
1200 "muxer-notif-iter-addr=%p", port
,
1201 bt_port_get_name(port
), muxer_notif_iter
);
1206 BT_LOGD("Appended port to muxer's notification iterator list of newly connected input ports: "
1207 "port-addr=%p, port-name=\"%s\", "
1208 "muxer-notif-iter-addr=%p", port
,
1209 bt_port_get_name(port
), muxer_notif_iter
);
1217 enum bt_notification_iterator_status
muxer_notif_iter_init(
1218 struct bt_private_connection_private_notification_iterator
*priv_notif_iter
,
1219 struct bt_private_port
*output_priv_port
)
1221 struct muxer_comp
*muxer_comp
= NULL
;
1222 struct muxer_notif_iter
*muxer_notif_iter
= NULL
;
1223 struct bt_private_component
*priv_comp
= NULL
;
1224 enum bt_notification_iterator_status status
=
1225 BT_NOTIFICATION_ITERATOR_STATUS_OK
;
1228 priv_comp
= bt_private_connection_private_notification_iterator_get_private_component(
1230 BT_ASSERT(priv_comp
);
1231 muxer_comp
= bt_private_component_get_user_data(priv_comp
);
1232 BT_ASSERT(muxer_comp
);
1233 BT_LOGD("Initializing muxer component's notification iterator: "
1234 "comp-addr=%p, muxer-comp-addr=%p, notif-iter-addr=%p",
1235 priv_comp
, muxer_comp
, priv_notif_iter
);
1237 if (muxer_comp
->initializing_muxer_notif_iter
) {
1239 * Weird, unhandled situation detected: downstream
1240 * creates a muxer notification iterator while creating
1241 * another muxer notification iterator (same component).
1243 BT_LOGE("Recursive initialization of muxer component's notification iterator: "
1244 "comp-addr=%p, muxer-comp-addr=%p, notif-iter-addr=%p",
1245 priv_comp
, muxer_comp
, priv_notif_iter
);
1249 muxer_comp
->initializing_muxer_notif_iter
= true;
1250 muxer_notif_iter
= g_new0(struct muxer_notif_iter
, 1);
1251 if (!muxer_notif_iter
) {
1252 BT_LOGE_STR("Failed to allocate one muxer component's notification iterator.");
1256 muxer_notif_iter
->last_returned_ts_ns
= INT64_MIN
;
1257 muxer_notif_iter
->muxer_upstream_notif_iters
=
1258 g_ptr_array_new_with_free_func(
1259 (GDestroyNotify
) destroy_muxer_upstream_notif_iter
);
1260 if (!muxer_notif_iter
->muxer_upstream_notif_iters
) {
1261 BT_LOGE_STR("Failed to allocate a GPtrArray.");
1266 * Add the muxer notification iterator to the component's array
1267 * of muxer notification iterators here because
1268 * muxer_notif_iter_init_newly_connected_ports() can cause
1269 * muxer_port_connected() to be called, which adds the newly
1270 * connected port to each muxer notification iterator's list of
1271 * newly connected ports.
1273 g_ptr_array_add(muxer_comp
->muxer_notif_iters
, muxer_notif_iter
);
1274 ret
= muxer_notif_iter_init_newly_connected_ports(muxer_comp
,
1277 BT_LOGE("Cannot initialize newly connected input ports for muxer component's notification iterator: "
1278 "comp-addr=%p, muxer-comp-addr=%p, "
1279 "muxer-notif-iter-addr=%p, notif-iter-addr=%p, ret=%d",
1280 priv_comp
, muxer_comp
, muxer_notif_iter
,
1281 priv_notif_iter
, ret
);
1285 ret
= bt_private_connection_private_notification_iterator_set_user_data(priv_notif_iter
,
1287 BT_ASSERT(ret
== 0);
1288 BT_LOGD("Initialized muxer component's notification iterator: "
1289 "comp-addr=%p, muxer-comp-addr=%p, muxer-notif-iter-addr=%p, "
1290 "notif-iter-addr=%p",
1291 priv_comp
, muxer_comp
, muxer_notif_iter
, priv_notif_iter
);
1295 if (g_ptr_array_index(muxer_comp
->muxer_notif_iters
,
1296 muxer_comp
->muxer_notif_iters
->len
- 1) == muxer_notif_iter
) {
1297 g_ptr_array_remove_index(muxer_comp
->muxer_notif_iters
,
1298 muxer_comp
->muxer_notif_iters
->len
- 1);
1301 destroy_muxer_notif_iter(muxer_notif_iter
);
1302 ret
= bt_private_connection_private_notification_iterator_set_user_data(priv_notif_iter
,
1304 BT_ASSERT(ret
== 0);
1305 status
= BT_NOTIFICATION_ITERATOR_STATUS_ERROR
;
1308 muxer_comp
->initializing_muxer_notif_iter
= false;
1314 void muxer_notif_iter_finalize(
1315 struct bt_private_connection_private_notification_iterator
*priv_notif_iter
)
1317 struct muxer_notif_iter
*muxer_notif_iter
=
1318 bt_private_connection_private_notification_iterator_get_user_data(priv_notif_iter
);
1319 struct bt_private_component
*priv_comp
= NULL
;
1320 struct muxer_comp
*muxer_comp
= NULL
;
1322 priv_comp
= bt_private_connection_private_notification_iterator_get_private_component(
1324 BT_ASSERT(priv_comp
);
1325 muxer_comp
= bt_private_component_get_user_data(priv_comp
);
1326 BT_LOGD("Finalizing muxer component's notification iterator: "
1327 "comp-addr=%p, muxer-comp-addr=%p, muxer-notif-iter-addr=%p, "
1328 "notif-iter-addr=%p",
1329 priv_comp
, muxer_comp
, muxer_notif_iter
, priv_notif_iter
);
1332 (void) g_ptr_array_remove_fast(muxer_comp
->muxer_notif_iters
,
1334 destroy_muxer_notif_iter(muxer_notif_iter
);
1341 struct bt_notification_iterator_next_method_return
muxer_notif_iter_next(
1342 struct bt_private_connection_private_notification_iterator
*priv_notif_iter
)
1344 struct bt_notification_iterator_next_method_return next_ret
;
1345 struct muxer_notif_iter
*muxer_notif_iter
=
1346 bt_private_connection_private_notification_iterator_get_user_data(priv_notif_iter
);
1347 struct bt_private_component
*priv_comp
= NULL
;
1348 struct muxer_comp
*muxer_comp
= NULL
;
1350 BT_ASSERT(muxer_notif_iter
);
1351 priv_comp
= bt_private_connection_private_notification_iterator_get_private_component(
1353 BT_ASSERT(priv_comp
);
1354 muxer_comp
= bt_private_component_get_user_data(priv_comp
);
1355 BT_ASSERT(muxer_comp
);
1357 BT_LOGV("Muxer component's notification iterator's \"next\" method called: "
1358 "comp-addr=%p, muxer-comp-addr=%p, muxer-notif-iter-addr=%p, "
1359 "notif-iter-addr=%p",
1360 priv_comp
, muxer_comp
, muxer_notif_iter
, priv_notif_iter
);
1362 /* Are we in an error state set elsewhere? */
1363 if (unlikely(muxer_comp
->error
)) {
1364 BT_LOGE("Muxer component is already in an error state: returning BT_NOTIFICATION_ITERATOR_STATUS_ERROR: "
1365 "comp-addr=%p, muxer-comp-addr=%p, muxer-notif-iter-addr=%p, "
1366 "notif-iter-addr=%p",
1367 priv_comp
, muxer_comp
, muxer_notif_iter
, priv_notif_iter
);
1368 next_ret
.notification
= NULL
;
1369 next_ret
.status
= BT_NOTIFICATION_ITERATOR_STATUS_ERROR
;
1373 next_ret
= muxer_notif_iter_do_next(muxer_comp
, muxer_notif_iter
);
1374 if (next_ret
.status
< 0) {
1375 BT_LOGE("Cannot get next notification: "
1376 "comp-addr=%p, muxer-comp-addr=%p, muxer-notif-iter-addr=%p, "
1377 "notif-iter-addr=%p, status=%s",
1378 priv_comp
, muxer_comp
, muxer_notif_iter
, priv_notif_iter
,
1379 bt_notification_iterator_status_string(next_ret
.status
));
1381 BT_LOGV("Returning from muxer component's notification iterator's \"next\" method: "
1382 "status=%s, notif-addr=%p",
1383 bt_notification_iterator_status_string(next_ret
.status
),
1384 next_ret
.notification
);
1393 void muxer_port_connected(
1394 struct bt_private_component
*priv_comp
,
1395 struct bt_private_port
*self_private_port
,
1396 struct bt_port
*other_port
)
1398 struct bt_port
*self_port
=
1399 bt_port_borrow_from_private(self_private_port
);
1400 struct muxer_comp
*muxer_comp
=
1401 bt_private_component_get_user_data(priv_comp
);
1405 BT_ASSERT(self_port
);
1406 BT_ASSERT(muxer_comp
);
1407 BT_LOGD("Port connected: "
1408 "comp-addr=%p, muxer-comp-addr=%p, "
1409 "port-addr=%p, port-name=\"%s\", "
1410 "other-port-addr=%p, other-port-name=\"%s\"",
1411 priv_comp
, muxer_comp
, self_port
, bt_port_get_name(self_port
),
1412 other_port
, bt_port_get_name(other_port
));
1414 if (bt_port_get_type(self_port
) == BT_PORT_TYPE_OUTPUT
) {
1418 for (i
= 0; i
< muxer_comp
->muxer_notif_iters
->len
; i
++) {
1419 struct muxer_notif_iter
*muxer_notif_iter
=
1420 g_ptr_array_index(muxer_comp
->muxer_notif_iters
, i
);
1423 * Add this port to the list of newly connected ports
1424 * for this muxer notification iterator. We append at
1425 * the end of this list while
1426 * muxer_notif_iter_handle_newly_connected_ports()
1427 * removes the nodes from the beginning.
1429 muxer_notif_iter
->newly_connected_priv_ports
=
1431 muxer_notif_iter
->newly_connected_priv_ports
,
1433 if (!muxer_notif_iter
->newly_connected_priv_ports
) {
1434 BT_LOGE("Cannot append port to muxer's notification iterator list of newly connected input ports: "
1435 "port-addr=%p, port-name=\"%s\", "
1436 "muxer-notif-iter-addr=%p", self_port
,
1437 bt_port_get_name(self_port
), muxer_notif_iter
);
1438 muxer_comp
->error
= true;
1442 BT_LOGD("Appended port to muxer's notification iterator list of newly connected input ports: "
1443 "port-addr=%p, port-name=\"%s\", "
1444 "muxer-notif-iter-addr=%p", self_port
,
1445 bt_port_get_name(self_port
), muxer_notif_iter
);
1448 /* One less available input port */
1449 muxer_comp
->available_input_ports
--;
1450 ret
= ensure_available_input_port(priv_comp
);
1453 * Only way to report an error later since this
1454 * method does not return anything.
1456 BT_LOGE("Cannot ensure that at least one muxer component's input port is available: "
1457 "muxer-comp-addr=%p, status=%s",
1458 muxer_comp
, bt_component_status_string(ret
));
1459 muxer_comp
->error
= true;
1468 void muxer_port_disconnected(struct bt_private_component
*priv_comp
,
1469 struct bt_private_port
*priv_port
)
1471 struct bt_port
*port
= bt_port_borrow_from_private(priv_port
);
1472 struct muxer_comp
*muxer_comp
=
1473 bt_private_component_get_user_data(priv_comp
);
1476 BT_ASSERT(muxer_comp
);
1477 BT_LOGD("Port disconnected: "
1478 "comp-addr=%p, muxer-comp-addr=%p, port-addr=%p, "
1479 "port-name=\"%s\"", priv_comp
, muxer_comp
,
1480 port
, bt_port_get_name(port
));
1483 * There's nothing special to do when a port is disconnected
1484 * because this component deals with upstream notification
1485 * iterators which were already created thanks to connected
1486 * ports. The fact that the port is disconnected does not cancel
1487 * the upstream notification iterators created using its
1488 * connection: they still exist, even if the connection is dead.
1489 * The only way to remove an upstream notification iterator is
1490 * for its "next" operation to return
1491 * BT_NOTIFICATION_ITERATOR_STATUS_END.
1493 if (bt_port_get_type(port
) == BT_PORT_TYPE_INPUT
) {
1494 /* One more available input port */
1495 muxer_comp
->available_input_ports
++;
1496 BT_LOGD("Leaving disconnected input port available for future connections: "
1497 "comp-addr=%p, muxer-comp-addr=%p, port-addr=%p, "
1498 "port-name=\"%s\", avail-input-port-count=%zu",
1499 priv_comp
, muxer_comp
, port
, bt_port_get_name(port
),
1500 muxer_comp
->available_input_ports
);