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 * This flag is true if the upstream notification iterator's
66 * current notification must be considered for the multiplexing
67 * operations. If the upstream iterator returns
68 * BT_NOTIFICATION_ITERATOR_STATUS_AGAIN, then this object
69 * is considered invalid, because its current notification is
70 * still the previous one, but we already took it into account.
72 * The value of this flag is not important if notif_iter above
73 * is NULL (which means the upstream iterator is finished).
78 enum muxer_notif_iter_clock_class_expectation
{
79 MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_ANY
= 0,
80 MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_ABSOLUTE
,
81 MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_SPEC_UUID
,
82 MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_NO_UUID
,
85 struct muxer_notif_iter
{
87 * Array of struct muxer_upstream_notif_iter * (owned by this).
89 * NOTE: This array is searched in linearly to find the youngest
90 * current notification. Keep this until benchmarks confirm that
91 * another data structure is faster than this for our typical
94 GPtrArray
*muxer_upstream_notif_iters
;
97 * List of "recently" connected input ports (weak) to
98 * handle by this muxer notification iterator.
99 * muxer_port_connected() adds entries to this list, and the
100 * entries are removed when a notification iterator is created
101 * on the port's connection and put into
102 * muxer_upstream_notif_iters above by
103 * muxer_notif_iter_handle_newly_connected_ports().
105 GList
*newly_connected_priv_ports
;
107 /* Next thing to return by the "next" method */
108 struct bt_notification_iterator_next_method_return next_next_return
;
110 /* Last time returned in a notification */
111 int64_t last_returned_ts_ns
;
113 /* Clock class expectation state */
114 enum muxer_notif_iter_clock_class_expectation clock_class_expectation
;
117 * Expected clock class UUID, only valid when
118 * clock_class_expectation is
119 * MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_SPEC_UUID.
121 unsigned char expected_clock_class_uuid
[BABELTRACE_UUID_LEN
];
125 void destroy_muxer_upstream_notif_iter(
126 struct muxer_upstream_notif_iter
*muxer_upstream_notif_iter
)
128 if (!muxer_upstream_notif_iter
) {
132 BT_LOGD("Destroying muxer's upstream notification iterator wrapper: "
133 "addr=%p, notif-iter-addr=%p, is-valid=%d",
134 muxer_upstream_notif_iter
,
135 muxer_upstream_notif_iter
->notif_iter
,
136 muxer_upstream_notif_iter
->is_valid
);
137 bt_put(muxer_upstream_notif_iter
->notif_iter
);
138 g_free(muxer_upstream_notif_iter
);
142 struct muxer_upstream_notif_iter
*muxer_notif_iter_add_upstream_notif_iter(
143 struct muxer_notif_iter
*muxer_notif_iter
,
144 struct bt_notification_iterator
*notif_iter
,
145 struct bt_private_port
*priv_port
)
147 struct muxer_upstream_notif_iter
*muxer_upstream_notif_iter
=
148 g_new0(struct muxer_upstream_notif_iter
, 1);
150 if (!muxer_upstream_notif_iter
) {
151 BT_LOGE_STR("Failed to allocate one muxer's upstream notification iterator wrapper.");
155 muxer_upstream_notif_iter
->notif_iter
= bt_get(notif_iter
);
156 muxer_upstream_notif_iter
->is_valid
= false;
157 g_ptr_array_add(muxer_notif_iter
->muxer_upstream_notif_iters
,
158 muxer_upstream_notif_iter
);
159 BT_LOGD("Added muxer's upstream notification iterator wrapper: "
160 "addr=%p, muxer-notif-iter-addr=%p, notif-iter-addr=%p",
161 muxer_upstream_notif_iter
, muxer_notif_iter
,
165 return muxer_upstream_notif_iter
;
169 enum bt_component_status
ensure_available_input_port(
170 struct bt_private_component
*priv_comp
)
172 struct muxer_comp
*muxer_comp
=
173 bt_private_component_get_user_data(priv_comp
);
174 enum bt_component_status status
= BT_COMPONENT_STATUS_OK
;
175 GString
*port_name
= NULL
;
177 BT_ASSERT(muxer_comp
);
179 if (muxer_comp
->available_input_ports
>= 1) {
183 port_name
= g_string_new("in");
185 BT_LOGE_STR("Failed to allocate a GString.");
186 status
= BT_COMPONENT_STATUS_NOMEM
;
190 g_string_append_printf(port_name
, "%u", muxer_comp
->next_port_num
);
191 status
= bt_private_component_filter_add_input_private_port(
192 priv_comp
, port_name
->str
, NULL
, NULL
);
193 if (status
!= BT_COMPONENT_STATUS_OK
) {
194 BT_LOGE("Cannot add input port to muxer component: "
195 "port-name=\"%s\", comp-addr=%p, status=%s",
196 port_name
->str
, priv_comp
,
197 bt_component_status_string(status
));
201 muxer_comp
->available_input_ports
++;
202 muxer_comp
->next_port_num
++;
203 BT_LOGD("Added one input port to muxer component: "
204 "port-name=\"%s\", comp-addr=%p",
205 port_name
->str
, priv_comp
);
208 g_string_free(port_name
, TRUE
);
215 enum bt_component_status
create_output_port(
216 struct bt_private_component
*priv_comp
)
218 return bt_private_component_filter_add_output_private_port(
219 priv_comp
, "out", NULL
, NULL
);
223 void destroy_muxer_comp(struct muxer_comp
*muxer_comp
)
229 BT_LOGD("Destroying muxer component: muxer-comp-addr=%p, "
230 "muxer-notif-iter-count=%u", muxer_comp
,
231 muxer_comp
->muxer_notif_iters
?
232 muxer_comp
->muxer_notif_iters
->len
: 0);
234 if (muxer_comp
->muxer_notif_iters
) {
235 g_ptr_array_free(muxer_comp
->muxer_notif_iters
, TRUE
);
242 struct bt_value
*get_default_params(void)
244 struct bt_value
*params
;
247 params
= bt_value_map_create();
249 BT_LOGE_STR("Cannot create a map value object.");
253 ret
= bt_value_map_insert_bool(params
,
254 ASSUME_ABSOLUTE_CLOCK_CLASSES_PARAM_NAME
, false);
256 BT_LOGE_STR("Cannot add boolean value to map value object.");
270 int configure_muxer_comp(struct muxer_comp
*muxer_comp
, struct bt_value
*params
)
272 struct bt_value
*default_params
= NULL
;
273 struct bt_value
*real_params
= NULL
;
274 struct bt_value
*assume_absolute_clock_classes
= NULL
;
278 default_params
= get_default_params();
279 if (!default_params
) {
280 BT_LOGE("Cannot get default parameters: "
281 "muxer-comp-addr=%p", muxer_comp
);
285 real_params
= bt_value_map_extend(default_params
, params
);
287 BT_LOGE("Cannot extend default parameters map value: "
288 "muxer-comp-addr=%p, def-params-addr=%p, "
289 "params-addr=%p", muxer_comp
, default_params
,
294 assume_absolute_clock_classes
= bt_value_map_borrow(real_params
,
295 ASSUME_ABSOLUTE_CLOCK_CLASSES_PARAM_NAME
);
296 if (assume_absolute_clock_classes
&&
297 !bt_value_is_bool(assume_absolute_clock_classes
)) {
298 BT_LOGE("Expecting a boolean value for the `%s` parameter: "
299 "muxer-comp-addr=%p, value-type=%s",
300 ASSUME_ABSOLUTE_CLOCK_CLASSES_PARAM_NAME
, muxer_comp
,
301 bt_value_type_string(
302 bt_value_get_type(assume_absolute_clock_classes
)));
306 ret
= bt_value_bool_get(assume_absolute_clock_classes
, &bool_val
);
308 muxer_comp
->assume_absolute_clock_classes
= (bool) bool_val
;
309 BT_LOGD("Configured muxer component: muxer-comp-addr=%p, "
310 "assume-absolute-clock-classes=%d",
311 muxer_comp
, muxer_comp
->assume_absolute_clock_classes
);
318 bt_put(default_params
);
324 enum bt_component_status
muxer_init(
325 struct bt_private_component
*priv_comp
,
326 struct bt_value
*params
, void *init_data
)
329 enum bt_component_status status
= BT_COMPONENT_STATUS_OK
;
330 struct muxer_comp
*muxer_comp
= g_new0(struct muxer_comp
, 1);
332 BT_LOGD("Initializing muxer component: "
333 "comp-addr=%p, params-addr=%p", priv_comp
, params
);
336 BT_LOGE_STR("Failed to allocate one muxer component.");
340 ret
= configure_muxer_comp(muxer_comp
, params
);
342 BT_LOGE("Cannot configure muxer component: "
343 "muxer-comp-addr=%p, params-addr=%p",
348 muxer_comp
->muxer_notif_iters
= g_ptr_array_new();
349 if (!muxer_comp
->muxer_notif_iters
) {
350 BT_LOGE_STR("Failed to allocate a GPtrArray.");
354 muxer_comp
->priv_comp
= priv_comp
;
355 ret
= bt_private_component_set_user_data(priv_comp
, muxer_comp
);
357 status
= ensure_available_input_port(priv_comp
);
358 if (status
!= BT_COMPONENT_STATUS_OK
) {
359 BT_LOGE("Cannot ensure that at least one muxer component's input port is available: "
360 "muxer-comp-addr=%p, status=%s",
362 bt_component_status_string(status
));
366 status
= create_output_port(priv_comp
);
368 BT_LOGE("Cannot create muxer component's output port: "
369 "muxer-comp-addr=%p, status=%s",
371 bt_component_status_string(status
));
375 BT_LOGD("Initialized muxer component: "
376 "comp-addr=%p, params-addr=%p, muxer-comp-addr=%p",
377 priv_comp
, params
, muxer_comp
);
382 destroy_muxer_comp(muxer_comp
);
383 ret
= bt_private_component_set_user_data(priv_comp
, NULL
);
386 if (status
== BT_COMPONENT_STATUS_OK
) {
387 status
= BT_COMPONENT_STATUS_ERROR
;
395 void muxer_finalize(struct bt_private_component
*priv_comp
)
397 struct muxer_comp
*muxer_comp
=
398 bt_private_component_get_user_data(priv_comp
);
400 BT_LOGD("Finalizing muxer component: comp-addr=%p",
402 destroy_muxer_comp(muxer_comp
);
406 struct bt_notification_iterator
*create_notif_iter_on_input_port(
407 struct bt_private_port
*priv_port
, int *ret
)
409 struct bt_port
*port
= bt_port_borrow_from_private(priv_port
);
410 struct bt_notification_iterator
*notif_iter
= NULL
;
411 struct bt_private_connection
*priv_conn
= NULL
;
412 enum bt_connection_status conn_status
;
417 BT_ASSERT(bt_port_is_connected(port
));
418 priv_conn
= bt_private_port_get_private_connection(priv_port
);
419 BT_ASSERT(priv_conn
);
421 // TODO: Advance the iterator to >= the time of the latest
422 // returned notification by the muxer notification
423 // iterator which creates it.
424 conn_status
= bt_private_connection_create_notification_iterator(
425 priv_conn
, ¬if_iter
);
426 if (conn_status
!= BT_CONNECTION_STATUS_OK
) {
427 BT_LOGE("Cannot create upstream notification iterator on input port's connection: "
428 "port-addr=%p, port-name=\"%s\", conn-addr=%p, "
430 port
, bt_port_get_name(port
), priv_conn
,
431 bt_connection_status_string(conn_status
));
436 BT_LOGD("Created upstream notification iterator on input port's connection: "
437 "port-addr=%p, port-name=\"%s\", conn-addr=%p, "
438 "notif-iter-addr=%p",
439 port
, bt_port_get_name(port
), priv_conn
, notif_iter
);
447 enum bt_notification_iterator_status
muxer_upstream_notif_iter_next(
448 struct muxer_upstream_notif_iter
*muxer_upstream_notif_iter
)
450 enum bt_notification_iterator_status status
;
452 BT_LOGV("Calling upstream notification iterator's \"next\" method: "
453 "muxer-upstream-notif-iter-wrap-addr=%p, notif-iter-addr=%p",
454 muxer_upstream_notif_iter
,
455 muxer_upstream_notif_iter
->notif_iter
);
456 status
= bt_notification_iterator_next(
457 muxer_upstream_notif_iter
->notif_iter
);
458 BT_LOGV("Upstream notification iterator's \"next\" method returned: "
459 "status=%s", bt_notification_iterator_status_string(status
));
462 case BT_NOTIFICATION_ITERATOR_STATUS_OK
:
464 * Notification iterator's current notification is valid:
465 * it must be considered for muxing operations.
467 BT_LOGV_STR("Validated upstream notification iterator wrapper.");
468 muxer_upstream_notif_iter
->is_valid
= true;
470 case BT_NOTIFICATION_ITERATOR_STATUS_AGAIN
:
472 * Notification iterator's current notification is not
473 * valid anymore. Return
474 * BT_NOTIFICATION_ITERATOR_STATUS_AGAIN
477 BT_LOGV_STR("Invalidated upstream notification iterator wrapper because of BT_NOTIFICATION_ITERATOR_STATUS_AGAIN.");
478 muxer_upstream_notif_iter
->is_valid
= false;
480 case BT_NOTIFICATION_ITERATOR_STATUS_END
: /* Fall-through. */
481 case BT_NOTIFICATION_ITERATOR_STATUS_CANCELED
:
483 * Notification iterator reached the end: release it. It
484 * won't be considered again to find the youngest
487 BT_LOGV_STR("Invalidated upstream notification iterator wrapper because of BT_NOTIFICATION_ITERATOR_STATUS_END or BT_NOTIFICATION_ITERATOR_STATUS_CANCELED.");
488 BT_PUT(muxer_upstream_notif_iter
->notif_iter
);
489 muxer_upstream_notif_iter
->is_valid
= false;
490 status
= BT_NOTIFICATION_ITERATOR_STATUS_OK
;
493 /* Error or unsupported status code */
494 BT_LOGE("Error or unsupported status code: "
495 "status-code=%d", status
);
496 status
= BT_NOTIFICATION_ITERATOR_STATUS_ERROR
;
504 int muxer_notif_iter_handle_newly_connected_ports(
505 struct muxer_notif_iter
*muxer_notif_iter
)
509 BT_LOGV("Handling newly connected ports: "
510 "muxer-notif-iter-addr=%p", muxer_notif_iter
);
513 * Here we create one upstream notification iterator for each
514 * newly connected port. We do not perform an initial "next" on
515 * those new upstream notification iterators: they are
516 * invalidated, to be validated later. The list of newly
517 * connected ports to handle here is updated by
518 * muxer_port_connected().
521 GList
*node
= muxer_notif_iter
->newly_connected_priv_ports
;
522 struct bt_private_port
*priv_port
;
523 struct bt_port
*port
;
524 struct bt_notification_iterator
*upstream_notif_iter
= NULL
;
525 struct muxer_upstream_notif_iter
*muxer_upstream_notif_iter
;
531 priv_port
= node
->data
;
532 port
= bt_port_borrow_from_private(priv_port
);
535 if (!bt_port_is_connected(port
)) {
537 * Looks like this port is not connected
538 * anymore: we can't create an upstream
539 * notification iterator on its (non-existing)
540 * connection in this case.
545 upstream_notif_iter
= create_notif_iter_on_input_port(priv_port
,
548 /* create_notif_iter_on_input_port() logs errors */
549 BT_ASSERT(!upstream_notif_iter
);
553 muxer_upstream_notif_iter
=
554 muxer_notif_iter_add_upstream_notif_iter(
555 muxer_notif_iter
, upstream_notif_iter
,
557 BT_PUT(upstream_notif_iter
);
558 if (!muxer_upstream_notif_iter
) {
560 * muxer_notif_iter_add_upstream_notif_iter()
567 bt_put(upstream_notif_iter
);
568 muxer_notif_iter
->newly_connected_priv_ports
=
570 muxer_notif_iter
->newly_connected_priv_ports
,
586 int get_notif_ts_ns(struct muxer_comp
*muxer_comp
,
587 struct muxer_notif_iter
*muxer_notif_iter
,
588 struct bt_notification
*notif
, int64_t last_returned_ts_ns
,
591 struct bt_clock_class_priority_map
*cc_prio_map
= NULL
;
592 struct bt_clock_class
*clock_class
= NULL
;
593 struct bt_clock_value
*clock_value
= NULL
;
594 struct bt_event
*event
= NULL
;
596 const unsigned char *cc_uuid
;
602 BT_LOGV("Getting notification's timestamp: "
603 "muxer-notif-iter-addr=%p, notif-addr=%p, "
604 "last-returned-ts=%" PRId64
,
605 muxer_notif_iter
, notif
, last_returned_ts_ns
);
607 switch (bt_notification_get_type(notif
)) {
608 case BT_NOTIFICATION_TYPE_EVENT
:
610 bt_notification_event_borrow_clock_class_priority_map(
614 case BT_NOTIFICATION_TYPE_INACTIVITY
:
616 bt_notification_inactivity_borrow_clock_class_priority_map(
620 /* All the other notifications have a higher priority */
621 BT_LOGV_STR("Notification has no timestamp: using the last returned timestamp.");
622 *ts_ns
= last_returned_ts_ns
;
627 BT_LOGE("Cannot get notification's clock class priority map: "
628 "notif-addr=%p", notif
);
633 * If the clock class priority map is empty, then we consider
634 * that this notification has no time. In this case it's always
637 if (bt_clock_class_priority_map_get_clock_class_count(cc_prio_map
) == 0) {
638 BT_LOGV_STR("Notification's clock class priority map contains 0 clock classes: "
639 "using the last returned timestamp.");
640 *ts_ns
= last_returned_ts_ns
;
645 bt_clock_class_priority_map_borrow_highest_priority_clock_class(
648 BT_LOGE("Cannot get the clock class with the highest priority from clock class priority map: "
649 "cc-prio-map-addr=%p", cc_prio_map
);
653 cc_uuid
= bt_clock_class_get_uuid(clock_class
);
654 cc_name
= bt_clock_class_get_name(clock_class
);
656 if (muxer_notif_iter
->clock_class_expectation
==
657 MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_ANY
) {
659 * This is the first clock class that this muxer
660 * notification iterator encounters. Its properties
661 * determine what to expect for the whole lifetime of
662 * the iterator without a true
663 * `assume-absolute-clock-classes` parameter.
665 if (bt_clock_class_is_absolute(clock_class
)) {
666 /* Expect absolute clock classes */
667 muxer_notif_iter
->clock_class_expectation
=
668 MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_ABSOLUTE
;
672 * Expect non-absolute clock classes
673 * with a specific UUID.
675 muxer_notif_iter
->clock_class_expectation
=
676 MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_SPEC_UUID
;
677 memcpy(muxer_notif_iter
->expected_clock_class_uuid
,
678 cc_uuid
, BABELTRACE_UUID_LEN
);
681 * Expect non-absolute clock classes
684 muxer_notif_iter
->clock_class_expectation
=
685 MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_NO_UUID
;
690 if (!muxer_comp
->assume_absolute_clock_classes
) {
691 switch (muxer_notif_iter
->clock_class_expectation
) {
692 case MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_ABSOLUTE
:
693 if (!bt_clock_class_is_absolute(clock_class
)) {
694 BT_LOGE("Expecting an absolute clock class, "
695 "but got a non-absolute one: "
696 "clock-class-addr=%p, clock-class-name=\"%s\"",
697 clock_class
, cc_name
);
701 case MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_NO_UUID
:
702 if (bt_clock_class_is_absolute(clock_class
)) {
703 BT_LOGE("Expecting a non-absolute clock class with no UUID, "
704 "but got an absolute one: "
705 "clock-class-addr=%p, clock-class-name=\"%s\"",
706 clock_class
, cc_name
);
711 BT_LOGE("Expecting a non-absolute clock class with no UUID, "
712 "but got one with a UUID: "
713 "clock-class-addr=%p, clock-class-name=\"%s\", "
714 "uuid=\"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\"",
715 clock_class
, cc_name
,
716 (unsigned int) cc_uuid
[0],
717 (unsigned int) cc_uuid
[1],
718 (unsigned int) cc_uuid
[2],
719 (unsigned int) cc_uuid
[3],
720 (unsigned int) cc_uuid
[4],
721 (unsigned int) cc_uuid
[5],
722 (unsigned int) cc_uuid
[6],
723 (unsigned int) cc_uuid
[7],
724 (unsigned int) cc_uuid
[8],
725 (unsigned int) cc_uuid
[9],
726 (unsigned int) cc_uuid
[10],
727 (unsigned int) cc_uuid
[11],
728 (unsigned int) cc_uuid
[12],
729 (unsigned int) cc_uuid
[13],
730 (unsigned int) cc_uuid
[14],
731 (unsigned int) cc_uuid
[15]);
735 case MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_SPEC_UUID
:
736 if (bt_clock_class_is_absolute(clock_class
)) {
737 BT_LOGE("Expecting a non-absolute clock class with a specific UUID, "
738 "but got an absolute one: "
739 "clock-class-addr=%p, clock-class-name=\"%s\"",
740 clock_class
, cc_name
);
745 BT_LOGE("Expecting a non-absolute clock class with a specific UUID, "
746 "but got one with no UUID: "
747 "clock-class-addr=%p, clock-class-name=\"%s\"",
748 clock_class
, cc_name
);
752 if (memcmp(muxer_notif_iter
->expected_clock_class_uuid
,
753 cc_uuid
, BABELTRACE_UUID_LEN
) != 0) {
754 BT_LOGE("Expecting a non-absolute clock class with a specific UUID, "
755 "but got one with different UUID: "
756 "clock-class-addr=%p, clock-class-name=\"%s\", "
757 "expected-uuid=\"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\", "
758 "uuid=\"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\"",
759 clock_class
, cc_name
,
760 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[0],
761 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[1],
762 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[2],
763 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[3],
764 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[4],
765 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[5],
766 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[6],
767 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[7],
768 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[8],
769 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[9],
770 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[10],
771 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[11],
772 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[12],
773 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[13],
774 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[14],
775 (unsigned int) muxer_notif_iter
->expected_clock_class_uuid
[15],
776 (unsigned int) cc_uuid
[0],
777 (unsigned int) cc_uuid
[1],
778 (unsigned int) cc_uuid
[2],
779 (unsigned int) cc_uuid
[3],
780 (unsigned int) cc_uuid
[4],
781 (unsigned int) cc_uuid
[5],
782 (unsigned int) cc_uuid
[6],
783 (unsigned int) cc_uuid
[7],
784 (unsigned int) cc_uuid
[8],
785 (unsigned int) cc_uuid
[9],
786 (unsigned int) cc_uuid
[10],
787 (unsigned int) cc_uuid
[11],
788 (unsigned int) cc_uuid
[12],
789 (unsigned int) cc_uuid
[13],
790 (unsigned int) cc_uuid
[14],
791 (unsigned int) cc_uuid
[15]);
797 BT_LOGF("Unexpected clock class expectation: "
798 "expectation-code=%d",
799 muxer_notif_iter
->clock_class_expectation
);
804 switch (bt_notification_get_type(notif
)) {
805 case BT_NOTIFICATION_TYPE_EVENT
:
806 event
= bt_notification_event_borrow_event(notif
);
808 clock_value
= bt_event_borrow_clock_value(event
,
811 case BT_NOTIFICATION_TYPE_INACTIVITY
:
812 clock_value
= bt_notification_inactivity_borrow_clock_value(
816 BT_LOGF("Unexpected notification type at this point: "
817 "type=%d", bt_notification_get_type(notif
));
822 BT_LOGE("Cannot get notification's clock value for clock class: "
823 "clock-class-addr=%p, clock-class-name=\"%s\"",
824 clock_class
, cc_name
);
828 ret
= bt_clock_value_get_value_ns_from_epoch(clock_value
, ts_ns
);
830 BT_LOGE("Cannot get nanoseconds from Epoch of clock value: "
831 "clock-value-addr=%p", clock_value
);
842 BT_LOGV("Found notification's timestamp: "
843 "muxer-notif-iter-addr=%p, notif-addr=%p, "
844 "last-returned-ts=%" PRId64
", ts=%" PRId64
,
845 muxer_notif_iter
, notif
, last_returned_ts_ns
,
853 * This function finds the youngest available notification amongst the
854 * non-ended upstream notification iterators and returns the upstream
855 * notification iterator which has it, or
856 * BT_NOTIFICATION_ITERATOR_STATUS_END if there's no available
859 * This function does NOT:
861 * * Update any upstream notification iterator.
862 * * Check for newly connected ports.
863 * * Check the upstream notification iterators to retry.
865 * On sucess, this function sets *muxer_upstream_notif_iter to the
866 * upstream notification iterator of which the current notification is
867 * the youngest, and sets *ts_ns to its time.
870 enum bt_notification_iterator_status
871 muxer_notif_iter_youngest_upstream_notif_iter(
872 struct muxer_comp
*muxer_comp
,
873 struct muxer_notif_iter
*muxer_notif_iter
,
874 struct muxer_upstream_notif_iter
**muxer_upstream_notif_iter
,
879 int64_t youngest_ts_ns
= INT64_MAX
;
880 enum bt_notification_iterator_status status
=
881 BT_NOTIFICATION_ITERATOR_STATUS_OK
;
883 BT_ASSERT(muxer_comp
);
884 BT_ASSERT(muxer_notif_iter
);
885 BT_ASSERT(muxer_upstream_notif_iter
);
886 *muxer_upstream_notif_iter
= NULL
;
888 for (i
= 0; i
< muxer_notif_iter
->muxer_upstream_notif_iters
->len
; i
++) {
889 struct bt_notification
*notif
;
890 struct muxer_upstream_notif_iter
*cur_muxer_upstream_notif_iter
=
891 g_ptr_array_index(muxer_notif_iter
->muxer_upstream_notif_iters
, i
);
894 if (!cur_muxer_upstream_notif_iter
->notif_iter
) {
895 /* This upstream notification iterator is ended */
896 BT_LOGV("Skipping ended upstream notification iterator: "
897 "muxer-upstream-notif-iter-wrap-addr=%p",
898 cur_muxer_upstream_notif_iter
);
902 BT_ASSERT(cur_muxer_upstream_notif_iter
->is_valid
);
903 notif
= bt_notification_iterator_borrow_notification(
904 cur_muxer_upstream_notif_iter
->notif_iter
);
906 ret
= get_notif_ts_ns(muxer_comp
, muxer_notif_iter
, notif
,
907 muxer_notif_iter
->last_returned_ts_ns
, ¬if_ts_ns
);
909 /* get_notif_ts_ns() logs errors */
910 *muxer_upstream_notif_iter
= NULL
;
911 status
= BT_NOTIFICATION_ITERATOR_STATUS_ERROR
;
915 if (notif_ts_ns
<= youngest_ts_ns
) {
916 *muxer_upstream_notif_iter
=
917 cur_muxer_upstream_notif_iter
;
918 youngest_ts_ns
= notif_ts_ns
;
919 *ts_ns
= youngest_ts_ns
;
923 if (!*muxer_upstream_notif_iter
) {
924 status
= BT_NOTIFICATION_ITERATOR_STATUS_END
;
933 enum bt_notification_iterator_status
validate_muxer_upstream_notif_iter(
934 struct muxer_upstream_notif_iter
*muxer_upstream_notif_iter
)
936 enum bt_notification_iterator_status status
=
937 BT_NOTIFICATION_ITERATOR_STATUS_OK
;
939 BT_LOGV("Validating muxer's upstream notification iterator wrapper: "
940 "muxer-upstream-notif-iter-wrap-addr=%p",
941 muxer_upstream_notif_iter
);
943 if (muxer_upstream_notif_iter
->is_valid
||
944 !muxer_upstream_notif_iter
->notif_iter
) {
948 /* muxer_upstream_notif_iter_next() logs details/errors */
949 status
= muxer_upstream_notif_iter_next(muxer_upstream_notif_iter
);
956 enum bt_notification_iterator_status
validate_muxer_upstream_notif_iters(
957 struct muxer_notif_iter
*muxer_notif_iter
)
959 enum bt_notification_iterator_status status
=
960 BT_NOTIFICATION_ITERATOR_STATUS_OK
;
963 BT_LOGV("Validating muxer's upstream notification iterator wrappers: "
964 "muxer-notif-iter-addr=%p", muxer_notif_iter
);
966 for (i
= 0; i
< muxer_notif_iter
->muxer_upstream_notif_iters
->len
; i
++) {
967 struct muxer_upstream_notif_iter
*muxer_upstream_notif_iter
=
969 muxer_notif_iter
->muxer_upstream_notif_iters
,
972 status
= validate_muxer_upstream_notif_iter(
973 muxer_upstream_notif_iter
);
974 if (status
!= BT_NOTIFICATION_ITERATOR_STATUS_OK
) {
976 BT_LOGE("Cannot validate muxer's upstream notification iterator wrapper: "
977 "muxer-notif-iter-addr=%p, "
978 "muxer-upstream-notif-iter-wrap-addr=%p",
980 muxer_upstream_notif_iter
);
982 BT_LOGV("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
);
993 * Remove this muxer upstream notification iterator
994 * if it's ended or canceled.
996 if (!muxer_upstream_notif_iter
->notif_iter
) {
998 * Use g_ptr_array_remove_fast() because the
999 * order of those elements is not important.
1001 BT_LOGV("Removing muxer's upstream notification iterator wrapper: ended or canceled: "
1002 "muxer-notif-iter-addr=%p, "
1003 "muxer-upstream-notif-iter-wrap-addr=%p",
1004 muxer_notif_iter
, muxer_upstream_notif_iter
);
1005 g_ptr_array_remove_index_fast(
1006 muxer_notif_iter
->muxer_upstream_notif_iters
,
1017 struct bt_notification_iterator_next_method_return
muxer_notif_iter_do_next(
1018 struct muxer_comp
*muxer_comp
,
1019 struct muxer_notif_iter
*muxer_notif_iter
)
1021 struct muxer_upstream_notif_iter
*muxer_upstream_notif_iter
= NULL
;
1022 struct bt_notification_iterator_next_method_return next_return
= {
1023 .notification
= NULL
,
1024 .status
= BT_NOTIFICATION_ITERATOR_STATUS_OK
,
1026 int64_t next_return_ts
;
1029 int ret
= muxer_notif_iter_handle_newly_connected_ports(
1033 BT_LOGE("Cannot handle newly connected input ports for muxer's notification iterator: "
1034 "muxer-comp-addr=%p, muxer-notif-iter-addr=%p, "
1036 muxer_comp
, muxer_notif_iter
, ret
);
1037 next_return
.status
=
1038 BT_NOTIFICATION_ITERATOR_STATUS_ERROR
;
1042 next_return
.status
=
1043 validate_muxer_upstream_notif_iters(muxer_notif_iter
);
1044 if (next_return
.status
!= BT_NOTIFICATION_ITERATOR_STATUS_OK
) {
1045 /* validate_muxer_upstream_notif_iters() logs details */
1050 * At this point, we know that all the existing upstream
1051 * notification iterators are valid. However the
1052 * operations to validate them (during
1053 * validate_muxer_upstream_notif_iters()) may have
1054 * connected new ports. If no ports were connected
1055 * during this operation, exit the loop.
1057 if (!muxer_notif_iter
->newly_connected_priv_ports
) {
1058 BT_LOGV("Not breaking this loop: muxer's notification iterator still has newly connected input ports to handle: "
1059 "muxer-comp-addr=%p", muxer_comp
);
1064 BT_ASSERT(!muxer_notif_iter
->newly_connected_priv_ports
);
1067 * At this point we know that all the existing upstream
1068 * notification iterators are valid. We can find the one,
1069 * amongst those, of which the current notification is the
1072 next_return
.status
=
1073 muxer_notif_iter_youngest_upstream_notif_iter(muxer_comp
,
1074 muxer_notif_iter
, &muxer_upstream_notif_iter
,
1076 if (next_return
.status
< 0 ||
1077 next_return
.status
== BT_NOTIFICATION_ITERATOR_STATUS_END
||
1078 next_return
.status
== BT_NOTIFICATION_ITERATOR_STATUS_CANCELED
) {
1079 if (next_return
.status
< 0) {
1080 BT_LOGE("Cannot find the youngest upstream notification iterator wrapper: "
1082 bt_notification_iterator_status_string(next_return
.status
));
1084 BT_LOGV("Cannot find the youngest upstream notification iterator wrapper: "
1086 bt_notification_iterator_status_string(next_return
.status
));
1092 if (next_return_ts
< muxer_notif_iter
->last_returned_ts_ns
) {
1093 BT_LOGE("Youngest upstream notification iterator wrapper's timestamp is less than muxer's notification iterator's last returned timestamp: "
1094 "muxer-notif-iter-addr=%p, ts=%" PRId64
", "
1095 "last-returned-ts=%" PRId64
,
1096 muxer_notif_iter
, next_return_ts
,
1097 muxer_notif_iter
->last_returned_ts_ns
);
1098 next_return
.status
= BT_NOTIFICATION_ITERATOR_STATUS_ERROR
;
1102 BT_LOGV("Found youngest upstream notification iterator wrapper: "
1103 "muxer-notif-iter-addr=%p, "
1104 "muxer-upstream-notif-iter-wrap-addr=%p, "
1106 muxer_notif_iter
, muxer_upstream_notif_iter
, next_return_ts
);
1107 BT_ASSERT(next_return
.status
== BT_NOTIFICATION_ITERATOR_STATUS_OK
);
1108 BT_ASSERT(muxer_upstream_notif_iter
);
1109 next_return
.notification
= bt_notification_iterator_get_notification(
1110 muxer_upstream_notif_iter
->notif_iter
);
1111 BT_ASSERT(next_return
.notification
);
1114 * We invalidate the upstream notification iterator so that, the
1115 * next time this function is called,
1116 * validate_muxer_upstream_notif_iters() will make it valid.
1118 muxer_upstream_notif_iter
->is_valid
= false;
1119 muxer_notif_iter
->last_returned_ts_ns
= next_return_ts
;
1126 void destroy_muxer_notif_iter(struct muxer_notif_iter
*muxer_notif_iter
)
1128 if (!muxer_notif_iter
) {
1132 BT_LOGD("Destroying muxer component's notification iterator: "
1133 "muxer-notif-iter-addr=%p", muxer_notif_iter
);
1135 if (muxer_notif_iter
->muxer_upstream_notif_iters
) {
1136 BT_LOGD_STR("Destroying muxer's upstream notification iterator wrappers.");
1138 muxer_notif_iter
->muxer_upstream_notif_iters
, TRUE
);
1141 g_list_free(muxer_notif_iter
->newly_connected_priv_ports
);
1142 g_free(muxer_notif_iter
);
1146 int muxer_notif_iter_init_newly_connected_ports(struct muxer_comp
*muxer_comp
,
1147 struct muxer_notif_iter
*muxer_notif_iter
)
1149 struct bt_component
*comp
;
1155 * Add the connected input ports to this muxer notification
1156 * iterator's list of newly connected ports. They will be
1157 * handled by muxer_notif_iter_handle_newly_connected_ports().
1159 comp
= bt_component_borrow_from_private(muxer_comp
->priv_comp
);
1161 count
= bt_component_filter_get_input_port_count(comp
);
1163 BT_LOGD("No input port to initialize for muxer component's notification iterator: "
1164 "muxer-comp-addr=%p, muxer-notif-iter-addr=%p",
1165 muxer_comp
, muxer_notif_iter
);
1169 for (i
= 0; i
< count
; i
++) {
1170 struct bt_private_port
*priv_port
=
1171 bt_private_component_filter_get_input_private_port_by_index(
1172 muxer_comp
->priv_comp
, i
);
1173 struct bt_port
*port
;
1175 BT_ASSERT(priv_port
);
1176 port
= bt_port_borrow_from_private(priv_port
);
1179 if (!bt_port_is_connected(port
)) {
1180 BT_LOGD("Skipping input port: not connected: "
1181 "muxer-comp-addr=%p, port-addr=%p, port-name\"%s\"",
1182 muxer_comp
, port
, bt_port_get_name(port
));
1188 muxer_notif_iter
->newly_connected_priv_ports
=
1190 muxer_notif_iter
->newly_connected_priv_ports
,
1192 if (!muxer_notif_iter
->newly_connected_priv_ports
) {
1193 BT_LOGE("Cannot append port to muxer's notification iterator list of newly connected input ports: "
1194 "port-addr=%p, port-name=\"%s\", "
1195 "muxer-notif-iter-addr=%p", port
,
1196 bt_port_get_name(port
), muxer_notif_iter
);
1201 BT_LOGD("Appended port to muxer's notification iterator list of newly connected input ports: "
1202 "port-addr=%p, port-name=\"%s\", "
1203 "muxer-notif-iter-addr=%p", port
,
1204 bt_port_get_name(port
), muxer_notif_iter
);
1212 enum bt_notification_iterator_status
muxer_notif_iter_init(
1213 struct bt_private_connection_private_notification_iterator
*priv_notif_iter
,
1214 struct bt_private_port
*output_priv_port
)
1216 struct muxer_comp
*muxer_comp
= NULL
;
1217 struct muxer_notif_iter
*muxer_notif_iter
= NULL
;
1218 struct bt_private_component
*priv_comp
= NULL
;
1219 enum bt_notification_iterator_status status
=
1220 BT_NOTIFICATION_ITERATOR_STATUS_OK
;
1223 priv_comp
= bt_private_connection_private_notification_iterator_get_private_component(
1225 BT_ASSERT(priv_comp
);
1226 muxer_comp
= bt_private_component_get_user_data(priv_comp
);
1227 BT_ASSERT(muxer_comp
);
1228 BT_LOGD("Initializing muxer component's notification iterator: "
1229 "comp-addr=%p, muxer-comp-addr=%p, notif-iter-addr=%p",
1230 priv_comp
, muxer_comp
, priv_notif_iter
);
1232 if (muxer_comp
->initializing_muxer_notif_iter
) {
1234 * Weird, unhandled situation detected: downstream
1235 * creates a muxer notification iterator while creating
1236 * another muxer notification iterator (same component).
1238 BT_LOGE("Recursive initialization of muxer component's notification iterator: "
1239 "comp-addr=%p, muxer-comp-addr=%p, notif-iter-addr=%p",
1240 priv_comp
, muxer_comp
, priv_notif_iter
);
1244 muxer_comp
->initializing_muxer_notif_iter
= true;
1245 muxer_notif_iter
= g_new0(struct muxer_notif_iter
, 1);
1246 if (!muxer_notif_iter
) {
1247 BT_LOGE_STR("Failed to allocate one muxer component's notification iterator.");
1251 muxer_notif_iter
->last_returned_ts_ns
= INT64_MIN
;
1252 muxer_notif_iter
->muxer_upstream_notif_iters
=
1253 g_ptr_array_new_with_free_func(
1254 (GDestroyNotify
) destroy_muxer_upstream_notif_iter
);
1255 if (!muxer_notif_iter
->muxer_upstream_notif_iters
) {
1256 BT_LOGE_STR("Failed to allocate a GPtrArray.");
1261 * Add the muxer notification iterator to the component's array
1262 * of muxer notification iterators here because
1263 * muxer_notif_iter_init_newly_connected_ports() can cause
1264 * muxer_port_connected() to be called, which adds the newly
1265 * connected port to each muxer notification iterator's list of
1266 * newly connected ports.
1268 g_ptr_array_add(muxer_comp
->muxer_notif_iters
, muxer_notif_iter
);
1269 ret
= muxer_notif_iter_init_newly_connected_ports(muxer_comp
,
1272 BT_LOGE("Cannot initialize newly connected input ports for muxer component's notification iterator: "
1273 "comp-addr=%p, muxer-comp-addr=%p, "
1274 "muxer-notif-iter-addr=%p, notif-iter-addr=%p, ret=%d",
1275 priv_comp
, muxer_comp
, muxer_notif_iter
,
1276 priv_notif_iter
, ret
);
1280 ret
= bt_private_connection_private_notification_iterator_set_user_data(priv_notif_iter
,
1282 BT_ASSERT(ret
== 0);
1283 BT_LOGD("Initialized muxer component's notification iterator: "
1284 "comp-addr=%p, muxer-comp-addr=%p, muxer-notif-iter-addr=%p, "
1285 "notif-iter-addr=%p",
1286 priv_comp
, muxer_comp
, muxer_notif_iter
, priv_notif_iter
);
1290 if (g_ptr_array_index(muxer_comp
->muxer_notif_iters
,
1291 muxer_comp
->muxer_notif_iters
->len
- 1) == muxer_notif_iter
) {
1292 g_ptr_array_remove_index(muxer_comp
->muxer_notif_iters
,
1293 muxer_comp
->muxer_notif_iters
->len
- 1);
1296 destroy_muxer_notif_iter(muxer_notif_iter
);
1297 ret
= bt_private_connection_private_notification_iterator_set_user_data(priv_notif_iter
,
1299 BT_ASSERT(ret
== 0);
1300 status
= BT_NOTIFICATION_ITERATOR_STATUS_ERROR
;
1303 muxer_comp
->initializing_muxer_notif_iter
= false;
1309 void muxer_notif_iter_finalize(
1310 struct bt_private_connection_private_notification_iterator
*priv_notif_iter
)
1312 struct muxer_notif_iter
*muxer_notif_iter
=
1313 bt_private_connection_private_notification_iterator_get_user_data(priv_notif_iter
);
1314 struct bt_private_component
*priv_comp
= NULL
;
1315 struct muxer_comp
*muxer_comp
= NULL
;
1317 priv_comp
= bt_private_connection_private_notification_iterator_get_private_component(
1319 BT_ASSERT(priv_comp
);
1320 muxer_comp
= bt_private_component_get_user_data(priv_comp
);
1321 BT_LOGD("Finalizing muxer component's notification iterator: "
1322 "comp-addr=%p, muxer-comp-addr=%p, muxer-notif-iter-addr=%p, "
1323 "notif-iter-addr=%p",
1324 priv_comp
, muxer_comp
, muxer_notif_iter
, priv_notif_iter
);
1327 (void) g_ptr_array_remove_fast(muxer_comp
->muxer_notif_iters
,
1329 destroy_muxer_notif_iter(muxer_notif_iter
);
1336 struct bt_notification_iterator_next_method_return
muxer_notif_iter_next(
1337 struct bt_private_connection_private_notification_iterator
*priv_notif_iter
)
1339 struct bt_notification_iterator_next_method_return next_ret
;
1340 struct muxer_notif_iter
*muxer_notif_iter
=
1341 bt_private_connection_private_notification_iterator_get_user_data(priv_notif_iter
);
1342 struct bt_private_component
*priv_comp
= NULL
;
1343 struct muxer_comp
*muxer_comp
= NULL
;
1345 BT_ASSERT(muxer_notif_iter
);
1346 priv_comp
= bt_private_connection_private_notification_iterator_get_private_component(
1348 BT_ASSERT(priv_comp
);
1349 muxer_comp
= bt_private_component_get_user_data(priv_comp
);
1350 BT_ASSERT(muxer_comp
);
1352 BT_LOGV("Muxer component's notification iterator's \"next\" method called: "
1353 "comp-addr=%p, muxer-comp-addr=%p, muxer-notif-iter-addr=%p, "
1354 "notif-iter-addr=%p",
1355 priv_comp
, muxer_comp
, muxer_notif_iter
, priv_notif_iter
);
1357 /* Are we in an error state set elsewhere? */
1358 if (unlikely(muxer_comp
->error
)) {
1359 BT_LOGE("Muxer component is already in an error state: returning BT_NOTIFICATION_ITERATOR_STATUS_ERROR: "
1360 "comp-addr=%p, muxer-comp-addr=%p, muxer-notif-iter-addr=%p, "
1361 "notif-iter-addr=%p",
1362 priv_comp
, muxer_comp
, muxer_notif_iter
, priv_notif_iter
);
1363 next_ret
.notification
= NULL
;
1364 next_ret
.status
= BT_NOTIFICATION_ITERATOR_STATUS_ERROR
;
1368 next_ret
= muxer_notif_iter_do_next(muxer_comp
, muxer_notif_iter
);
1369 if (next_ret
.status
< 0) {
1370 BT_LOGE("Cannot get next notification: "
1371 "comp-addr=%p, muxer-comp-addr=%p, muxer-notif-iter-addr=%p, "
1372 "notif-iter-addr=%p, status=%s",
1373 priv_comp
, muxer_comp
, muxer_notif_iter
, priv_notif_iter
,
1374 bt_notification_iterator_status_string(next_ret
.status
));
1376 BT_LOGV("Returning from muxer component's notification iterator's \"next\" method: "
1377 "status=%s, notif-addr=%p",
1378 bt_notification_iterator_status_string(next_ret
.status
),
1379 next_ret
.notification
);
1388 void muxer_port_connected(
1389 struct bt_private_component
*priv_comp
,
1390 struct bt_private_port
*self_private_port
,
1391 struct bt_port
*other_port
)
1393 struct bt_port
*self_port
=
1394 bt_port_borrow_from_private(self_private_port
);
1395 struct muxer_comp
*muxer_comp
=
1396 bt_private_component_get_user_data(priv_comp
);
1400 BT_ASSERT(self_port
);
1401 BT_ASSERT(muxer_comp
);
1402 BT_LOGD("Port connected: "
1403 "comp-addr=%p, muxer-comp-addr=%p, "
1404 "port-addr=%p, port-name=\"%s\", "
1405 "other-port-addr=%p, other-port-name=\"%s\"",
1406 priv_comp
, muxer_comp
, self_port
, bt_port_get_name(self_port
),
1407 other_port
, bt_port_get_name(other_port
));
1409 if (bt_port_get_type(self_port
) == BT_PORT_TYPE_OUTPUT
) {
1413 for (i
= 0; i
< muxer_comp
->muxer_notif_iters
->len
; i
++) {
1414 struct muxer_notif_iter
*muxer_notif_iter
=
1415 g_ptr_array_index(muxer_comp
->muxer_notif_iters
, i
);
1418 * Add this port to the list of newly connected ports
1419 * for this muxer notification iterator. We append at
1420 * the end of this list while
1421 * muxer_notif_iter_handle_newly_connected_ports()
1422 * removes the nodes from the beginning.
1424 muxer_notif_iter
->newly_connected_priv_ports
=
1426 muxer_notif_iter
->newly_connected_priv_ports
,
1428 if (!muxer_notif_iter
->newly_connected_priv_ports
) {
1429 BT_LOGE("Cannot append port to muxer's notification iterator list of newly connected input ports: "
1430 "port-addr=%p, port-name=\"%s\", "
1431 "muxer-notif-iter-addr=%p", self_port
,
1432 bt_port_get_name(self_port
), muxer_notif_iter
);
1433 muxer_comp
->error
= true;
1437 BT_LOGD("Appended port to muxer's notification iterator list of newly connected input ports: "
1438 "port-addr=%p, port-name=\"%s\", "
1439 "muxer-notif-iter-addr=%p", self_port
,
1440 bt_port_get_name(self_port
), muxer_notif_iter
);
1443 /* One less available input port */
1444 muxer_comp
->available_input_ports
--;
1445 ret
= ensure_available_input_port(priv_comp
);
1448 * Only way to report an error later since this
1449 * method does not return anything.
1451 BT_LOGE("Cannot ensure that at least one muxer component's input port is available: "
1452 "muxer-comp-addr=%p, status=%s",
1453 muxer_comp
, bt_component_status_string(ret
));
1454 muxer_comp
->error
= true;
1463 void muxer_port_disconnected(struct bt_private_component
*priv_comp
,
1464 struct bt_private_port
*priv_port
)
1466 struct bt_port
*port
= bt_port_borrow_from_private(priv_port
);
1467 struct muxer_comp
*muxer_comp
=
1468 bt_private_component_get_user_data(priv_comp
);
1471 BT_ASSERT(muxer_comp
);
1472 BT_LOGD("Port disconnected: "
1473 "comp-addr=%p, muxer-comp-addr=%p, port-addr=%p, "
1474 "port-name=\"%s\"", priv_comp
, muxer_comp
,
1475 port
, bt_port_get_name(port
));
1478 * There's nothing special to do when a port is disconnected
1479 * because this component deals with upstream notification
1480 * iterators which were already created thanks to connected
1481 * ports. The fact that the port is disconnected does not cancel
1482 * the upstream notification iterators created using its
1483 * connection: they still exist, even if the connection is dead.
1484 * The only way to remove an upstream notification iterator is
1485 * for its "next" operation to return
1486 * BT_NOTIFICATION_ITERATOR_STATUS_END.
1488 if (bt_port_get_type(port
) == BT_PORT_TYPE_INPUT
) {
1489 /* One more available input port */
1490 muxer_comp
->available_input_ports
++;
1491 BT_LOGD("Leaving disconnected input port available for future connections: "
1492 "comp-addr=%p, muxer-comp-addr=%p, port-addr=%p, "
1493 "port-name=\"%s\", avail-input-port-count=%zu",
1494 priv_comp
, muxer_comp
, port
, bt_port_get_name(port
),
1495 muxer_comp
->available_input_ports
);