Commit | Line | Data |
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47e5a032 | 1 | /* |
47e5a032 | 2 | * Copyright 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
3230ee6b | 3 | * Copyright 2017 Philippe Proulx <pproulx@efficios.com> |
47e5a032 JG |
4 | * |
5 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
6 | * of this software and associated documentation files (the "Software"), to deal | |
7 | * in the Software without restriction, including without limitation the rights | |
8 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
9 | * copies of the Software, and to permit persons to whom the Software is | |
10 | * furnished to do so, subject to the following conditions: | |
11 | * | |
12 | * The above copyright notice and this permission notice shall be included in | |
13 | * all copies or substantial portions of the Software. | |
14 | * | |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | |
18 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
21 | * SOFTWARE. | |
22 | */ | |
23 | ||
5af447e5 PP |
24 | #define BT_LOG_TAG "NOTIF-ITER" |
25 | #include <babeltrace/lib-logging-internal.h> | |
26 | ||
3d9990ac | 27 | #include <babeltrace/compiler-internal.h> |
65300d60 | 28 | #include <babeltrace/object.h> |
56e18c4c | 29 | #include <babeltrace/trace-ir/fields.h> |
56e18c4c PP |
30 | #include <babeltrace/trace-ir/event-internal.h> |
31 | #include <babeltrace/trace-ir/packet-internal.h> | |
32 | #include <babeltrace/trace-ir/stream-internal.h> | |
73d5c1ad | 33 | #include <babeltrace/graph/connection.h> |
bd14d768 | 34 | #include <babeltrace/graph/connection-internal.h> |
b2e0c907 | 35 | #include <babeltrace/graph/component.h> |
e5be10ef | 36 | #include <babeltrace/graph/component-internal.h> |
b2e0c907 PP |
37 | #include <babeltrace/graph/component-source-internal.h> |
38 | #include <babeltrace/graph/component-class-internal.h> | |
8ed535b5 PP |
39 | #include <babeltrace/graph/component-class-sink-colander-internal.h> |
40 | #include <babeltrace/graph/component-sink.h> | |
fa054faf | 41 | #include <babeltrace/graph/notification.h> |
b2e0c907 PP |
42 | #include <babeltrace/graph/notification-iterator.h> |
43 | #include <babeltrace/graph/notification-iterator-internal.h> | |
d94d92ac PP |
44 | #include <babeltrace/graph/self-component-port-input-notification-iterator.h> |
45 | #include <babeltrace/graph/port-output-notification-iterator.h> | |
e7fa96c3 | 46 | #include <babeltrace/graph/notification-internal.h> |
3230ee6b PP |
47 | #include <babeltrace/graph/notification-event.h> |
48 | #include <babeltrace/graph/notification-event-internal.h> | |
49 | #include <babeltrace/graph/notification-packet.h> | |
50 | #include <babeltrace/graph/notification-packet-internal.h> | |
51 | #include <babeltrace/graph/notification-stream.h> | |
52 | #include <babeltrace/graph/notification-stream-internal.h> | |
53 | #include <babeltrace/graph/port.h> | |
a2d06fd5 | 54 | #include <babeltrace/graph/private-graph.h> |
8ed535b5 | 55 | #include <babeltrace/graph/graph-internal.h> |
c55a9f58 | 56 | #include <babeltrace/types.h> |
f6ccaed9 | 57 | #include <babeltrace/assert-internal.h> |
f42867e2 | 58 | #include <babeltrace/assert-pre-internal.h> |
fa054faf | 59 | #include <stdint.h> |
2ec84d26 | 60 | #include <inttypes.h> |
0fbb9a9f | 61 | #include <stdlib.h> |
3230ee6b | 62 | |
d4393e08 PP |
63 | /* |
64 | * TODO: Use graph's state (number of active iterators, etc.) and | |
65 | * possibly system specifications to make a better guess than this. | |
66 | */ | |
67 | #define NOTIF_BATCH_SIZE 15 | |
68 | ||
3230ee6b | 69 | struct stream_state { |
50842bdc PP |
70 | struct bt_stream *stream; /* owned by this */ |
71 | struct bt_packet *cur_packet; /* owned by this */ | |
f42867e2 | 72 | uint64_t expected_notif_seq_num; |
c55a9f58 | 73 | bt_bool is_ended; |
3230ee6b PP |
74 | }; |
75 | ||
26e21a82 | 76 | BT_ASSERT_PRE_FUNC |
3230ee6b PP |
77 | static |
78 | void destroy_stream_state(struct stream_state *stream_state) | |
79 | { | |
80 | if (!stream_state) { | |
81 | return; | |
82 | } | |
83 | ||
5af447e5 PP |
84 | BT_LOGV("Destroying stream state: stream-state-addr=%p", stream_state); |
85 | BT_LOGV_STR("Putting stream state's current packet."); | |
d94d92ac | 86 | BT_OBJECT_PUT_REF_AND_RESET(stream_state->cur_packet); |
5af447e5 | 87 | BT_LOGV_STR("Putting stream state's stream."); |
d94d92ac | 88 | BT_OBJECT_PUT_REF_AND_RESET(stream_state->stream); |
3230ee6b PP |
89 | g_free(stream_state); |
90 | } | |
91 | ||
26e21a82 | 92 | BT_ASSERT_PRE_FUNC |
3230ee6b | 93 | static |
50842bdc | 94 | struct stream_state *create_stream_state(struct bt_stream *stream) |
3230ee6b PP |
95 | { |
96 | struct stream_state *stream_state = g_new0(struct stream_state, 1); | |
97 | ||
98 | if (!stream_state) { | |
5af447e5 | 99 | BT_LOGE_STR("Failed to allocate one stream state."); |
3230ee6b PP |
100 | goto end; |
101 | } | |
102 | ||
103 | /* | |
f42867e2 | 104 | * We keep a reference to the stream until we know it's ended. |
3230ee6b | 105 | */ |
65300d60 | 106 | stream_state->stream = bt_object_get_ref(stream); |
d94d92ac | 107 | BT_LIB_LOGV("Created stream state: %![stream-]+s, " |
5af447e5 | 108 | "stream-state-addr=%p", |
d94d92ac | 109 | stream, stream_state); |
3230ee6b PP |
110 | |
111 | end: | |
112 | return stream_state; | |
113 | } | |
47e5a032 | 114 | |
8ed535b5 PP |
115 | static |
116 | void destroy_base_notification_iterator(struct bt_object *obj) | |
117 | { | |
d4393e08 PP |
118 | struct bt_notification_iterator *iterator = (void *) obj; |
119 | ||
120 | BT_ASSERT(iterator); | |
121 | ||
122 | if (iterator->notifs) { | |
123 | g_ptr_array_free(iterator->notifs, TRUE); | |
d94d92ac | 124 | iterator->notifs = NULL; |
d4393e08 PP |
125 | } |
126 | ||
127 | g_free(iterator); | |
8ed535b5 PP |
128 | } |
129 | ||
47e5a032 | 130 | static |
d94d92ac | 131 | void bt_self_component_port_input_notification_iterator_destroy(struct bt_object *obj) |
47e5a032 | 132 | { |
d94d92ac | 133 | struct bt_self_component_port_input_notification_iterator *iterator; |
8738a040 | 134 | |
f6ccaed9 | 135 | BT_ASSERT(obj); |
d3eb6e8f | 136 | |
bd14d768 PP |
137 | /* |
138 | * The notification iterator's reference count is 0 if we're | |
139 | * here. Increment it to avoid a double-destroy (possibly | |
140 | * infinitely recursive). This could happen for example if the | |
d94d92ac PP |
141 | * notification iterator's finalization function does |
142 | * bt_object_get_ref() (or anything that causes | |
143 | * bt_object_get_ref() to be called) on itself (ref. count goes | |
144 | * from 0 to 1), and then bt_object_put_ref(): the reference | |
145 | * count would go from 1 to 0 again and this function would be | |
146 | * called again. | |
bd14d768 | 147 | */ |
3fea54f6 | 148 | obj->ref_count++; |
07245ac2 | 149 | iterator = (void *) obj; |
d94d92ac PP |
150 | BT_LIB_LOGD("Destroying self component input port notification iterator object: " |
151 | "%!+i", iterator); | |
152 | bt_self_component_port_input_notification_iterator_finalize(iterator); | |
d3eb6e8f | 153 | |
3230ee6b PP |
154 | if (iterator->stream_states) { |
155 | /* | |
156 | * Remove our destroy listener from each stream which | |
157 | * has a state in this iterator. Otherwise the destroy | |
158 | * listener would be called with an invalid/other | |
159 | * notification iterator object. | |
160 | */ | |
3230ee6b | 161 | g_hash_table_destroy(iterator->stream_states); |
d94d92ac | 162 | iterator->stream_states = NULL; |
3230ee6b PP |
163 | } |
164 | ||
bd14d768 PP |
165 | if (iterator->connection) { |
166 | /* | |
167 | * Remove ourself from the originating connection so | |
168 | * that it does not try to finalize a dangling pointer | |
169 | * later. | |
170 | */ | |
171 | bt_connection_remove_iterator(iterator->connection, iterator); | |
d94d92ac | 172 | iterator->connection = NULL; |
bd14d768 PP |
173 | } |
174 | ||
8ed535b5 | 175 | destroy_base_notification_iterator(obj); |
47e5a032 JG |
176 | } |
177 | ||
bd14d768 | 178 | BT_HIDDEN |
d94d92ac PP |
179 | void bt_self_component_port_input_notification_iterator_finalize( |
180 | struct bt_self_component_port_input_notification_iterator *iterator) | |
bd14d768 | 181 | { |
d94d92ac PP |
182 | typedef void (*method_t)(void *); |
183 | ||
bd14d768 | 184 | struct bt_component_class *comp_class = NULL; |
d94d92ac | 185 | method_t method = NULL; |
bd14d768 | 186 | |
f6ccaed9 | 187 | BT_ASSERT(iterator); |
bd14d768 PP |
188 | |
189 | switch (iterator->state) { | |
d94d92ac | 190 | case BT_SELF_COMPONENT_PORT_INPUT_NOTIFICATION_ITERATOR_STATE_NON_INITIALIZED: |
088d4023 | 191 | /* Skip user finalization if user initialization failed */ |
d94d92ac PP |
192 | BT_LIB_LOGD("Not finalizing non-initialized notification iterator: " |
193 | "%!+i", iterator); | |
088d4023 | 194 | return; |
d94d92ac PP |
195 | case BT_SELF_COMPONENT_PORT_INPUT_NOTIFICATION_ITERATOR_STATE_FINALIZED: |
196 | case BT_SELF_COMPONENT_PORT_INPUT_NOTIFICATION_ITERATOR_STATE_FINALIZED_AND_ENDED: | |
bd14d768 | 197 | /* Already finalized */ |
d94d92ac PP |
198 | BT_LIB_LOGD("Not finalizing notification iterator: already finalized: " |
199 | "%!+i", iterator); | |
bd14d768 PP |
200 | return; |
201 | default: | |
202 | break; | |
203 | } | |
204 | ||
d94d92ac | 205 | BT_LIB_LOGD("Finalizing notification iterator: %!+i", iterator); |
5af447e5 | 206 | |
d94d92ac PP |
207 | if (iterator->state == BT_SELF_COMPONENT_PORT_INPUT_NOTIFICATION_ITERATOR_STATE_ENDED) { |
208 | BT_LIB_LOGD("Updating notification iterator's state: " | |
209 | "new-state=BT_SELF_COMPONENT_PORT_INPUT_NOTIFICATION_ITERATOR_STATE_FINALIZED_AND_ENDED"); | |
210 | iterator->state = BT_SELF_COMPONENT_PORT_INPUT_NOTIFICATION_ITERATOR_STATE_FINALIZED_AND_ENDED; | |
df14f8af | 211 | } else { |
d94d92ac PP |
212 | BT_LIB_LOGD("Updating notification iterator's state: " |
213 | "new-state=BT_SELF_COMPONENT_PORT_INPUT_NOTIFICATION_ITERATOR_STATE_FINALIZED"); | |
214 | iterator->state = BT_SELF_COMPONENT_PORT_INPUT_NOTIFICATION_ITERATOR_STATE_FINALIZED; | |
df14f8af MD |
215 | } |
216 | ||
f6ccaed9 | 217 | BT_ASSERT(iterator->upstream_component); |
bd14d768 PP |
218 | comp_class = iterator->upstream_component->class; |
219 | ||
220 | /* Call user-defined destroy method */ | |
221 | switch (comp_class->type) { | |
222 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
223 | { | |
d94d92ac PP |
224 | struct bt_component_class_source *src_comp_cls = |
225 | (void *) comp_class; | |
bd14d768 | 226 | |
d94d92ac | 227 | method = (method_t) src_comp_cls->methods.notif_iter_finalize; |
bd14d768 PP |
228 | break; |
229 | } | |
230 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
231 | { | |
d94d92ac PP |
232 | struct bt_component_class_filter *flt_comp_cls = |
233 | (void *) comp_class; | |
bd14d768 | 234 | |
d94d92ac | 235 | method = (method_t) flt_comp_cls->methods.notif_iter_finalize; |
bd14d768 PP |
236 | break; |
237 | } | |
238 | default: | |
239 | /* Unreachable */ | |
0fbb9a9f | 240 | abort(); |
bd14d768 PP |
241 | } |
242 | ||
d94d92ac PP |
243 | if (method) { |
244 | BT_LIB_LOGD("Calling user's finalization method: %!+i", | |
5af447e5 | 245 | iterator); |
d94d92ac | 246 | method(iterator); |
bd14d768 PP |
247 | } |
248 | ||
bd14d768 PP |
249 | iterator->upstream_component = NULL; |
250 | iterator->upstream_port = NULL; | |
d94d92ac | 251 | BT_LIB_LOGD("Finalized notification iterator: %!+i", iterator); |
bd14d768 PP |
252 | } |
253 | ||
254 | BT_HIDDEN | |
d94d92ac PP |
255 | void bt_self_component_port_input_notification_iterator_set_connection( |
256 | struct bt_self_component_port_input_notification_iterator *iterator, | |
bd14d768 PP |
257 | struct bt_connection *connection) |
258 | { | |
f6ccaed9 | 259 | BT_ASSERT(iterator); |
bd14d768 | 260 | iterator->connection = connection; |
d94d92ac PP |
261 | BT_LIB_LOGV("Set notification iterator's connection: " |
262 | "%![iter-]+i, %![conn-]+x", iterator, connection); | |
bd14d768 PP |
263 | } |
264 | ||
90157d89 | 265 | static |
d4393e08 | 266 | int init_notification_iterator(struct bt_notification_iterator *iterator, |
90157d89 PP |
267 | enum bt_notification_iterator_type type, |
268 | bt_object_release_func destroy) | |
269 | { | |
d4393e08 PP |
270 | int ret = 0; |
271 | ||
3fea54f6 | 272 | bt_object_init_shared(&iterator->base, destroy); |
90157d89 | 273 | iterator->type = type; |
d4393e08 PP |
274 | iterator->notifs = g_ptr_array_new(); |
275 | if (!iterator->notifs) { | |
276 | BT_LOGE_STR("Failed to allocate a GPtrArray."); | |
277 | ret = -1; | |
278 | goto end; | |
279 | } | |
280 | ||
281 | g_ptr_array_set_size(iterator->notifs, NOTIF_BATCH_SIZE); | |
282 | ||
283 | end: | |
284 | return ret; | |
90157d89 PP |
285 | } |
286 | ||
d94d92ac PP |
287 | static |
288 | struct bt_self_component_port_input_notification_iterator * | |
289 | bt_self_component_port_input_notification_iterator_create_initial( | |
3230ee6b | 290 | struct bt_component *upstream_comp, |
d94d92ac | 291 | struct bt_port *upstream_port) |
47e5a032 | 292 | { |
d4393e08 | 293 | int ret; |
d94d92ac | 294 | struct bt_self_component_port_input_notification_iterator *iterator = NULL; |
47e5a032 | 295 | |
f6ccaed9 PP |
296 | BT_ASSERT(upstream_comp); |
297 | BT_ASSERT(upstream_port); | |
f6ccaed9 | 298 | BT_ASSERT(bt_port_is_connected(upstream_port)); |
d94d92ac PP |
299 | BT_LIB_LOGD("Creating initial notification iterator on self component input port: " |
300 | "%![up-comp-]+c, %![up-port-]+p", upstream_comp, upstream_port); | |
301 | BT_ASSERT(bt_component_get_class_type(upstream_comp) == | |
302 | BT_COMPONENT_CLASS_TYPE_SOURCE || | |
303 | bt_component_get_class_type(upstream_comp) == | |
304 | BT_COMPONENT_CLASS_TYPE_FILTER); | |
305 | iterator = g_new0( | |
306 | struct bt_self_component_port_input_notification_iterator, 1); | |
47e5a032 | 307 | if (!iterator) { |
d94d92ac PP |
308 | BT_LOGE_STR("Failed to allocate one self component input port " |
309 | "notification iterator."); | |
73d5c1ad | 310 | goto end; |
47e5a032 JG |
311 | } |
312 | ||
d4393e08 | 313 | ret = init_notification_iterator((void *) iterator, |
d94d92ac PP |
314 | BT_NOTIFICATION_ITERATOR_TYPE_SELF_COMPONENT_PORT_INPUT, |
315 | bt_self_component_port_input_notification_iterator_destroy); | |
d4393e08 PP |
316 | if (ret) { |
317 | /* init_notification_iterator() logs errors */ | |
d94d92ac | 318 | BT_OBJECT_PUT_REF_AND_RESET(iterator); |
d4393e08 PP |
319 | goto end; |
320 | } | |
3230ee6b PP |
321 | |
322 | iterator->stream_states = g_hash_table_new_full(g_direct_hash, | |
323 | g_direct_equal, NULL, (GDestroyNotify) destroy_stream_state); | |
324 | if (!iterator->stream_states) { | |
5af447e5 | 325 | BT_LOGE_STR("Failed to allocate a GHashTable."); |
d94d92ac | 326 | BT_OBJECT_PUT_REF_AND_RESET(iterator); |
73d5c1ad | 327 | goto end; |
3230ee6b PP |
328 | } |
329 | ||
bd14d768 PP |
330 | iterator->upstream_component = upstream_comp; |
331 | iterator->upstream_port = upstream_port; | |
d94d92ac | 332 | iterator->connection = iterator->upstream_port->connection; |
5c563278 | 333 | iterator->graph = bt_component_borrow_graph(upstream_comp); |
d94d92ac PP |
334 | iterator->state = BT_SELF_COMPONENT_PORT_INPUT_NOTIFICATION_ITERATOR_STATE_NON_INITIALIZED; |
335 | BT_LIB_LOGD("Created initial notification iterator on self component input port: " | |
336 | "%![up-port-]+p, %![up-comp-]+c, %![iter-]+i", | |
337 | upstream_port, upstream_comp, iterator); | |
3230ee6b | 338 | |
47e5a032 | 339 | end: |
d94d92ac | 340 | return iterator; |
47e5a032 JG |
341 | } |
342 | ||
d94d92ac PP |
343 | struct bt_self_component_port_input_notification_iterator * |
344 | bt_self_component_port_input_notification_iterator_create( | |
345 | struct bt_self_component_port_input *self_port) | |
ea8d3e58 | 346 | { |
d94d92ac PP |
347 | typedef enum bt_self_notification_iterator_status (*init_method_t)( |
348 | void *, void *, void *); | |
349 | ||
350 | init_method_t init_method = NULL; | |
351 | struct bt_self_component_port_input_notification_iterator *iterator = | |
352 | NULL; | |
353 | struct bt_port *port = (void *) self_port; | |
354 | struct bt_port *upstream_port; | |
355 | struct bt_component *comp; | |
356 | struct bt_component *upstream_comp; | |
357 | struct bt_component_class *upstream_comp_cls; | |
358 | ||
359 | BT_ASSERT_PRE_NON_NULL(port, "Port"); | |
360 | comp = bt_port_borrow_component(port); | |
361 | BT_ASSERT_PRE(bt_port_is_connected(port), | |
362 | "Port is not connected: %![port-]+p", port); | |
363 | BT_ASSERT_PRE(comp, "Port is not part of a component: %![port-]+p", | |
364 | port); | |
365 | BT_ASSERT_PRE(!bt_component_graph_is_canceled(comp), | |
366 | "Port's component's graph is canceled: " | |
367 | "%![port-]+p, %![comp-]+c", port, comp); | |
368 | BT_ASSERT(port->connection); | |
369 | upstream_port = port->connection->upstream_port; | |
370 | BT_ASSERT(upstream_port); | |
371 | upstream_comp = bt_port_borrow_component(upstream_port); | |
372 | BT_ASSERT(upstream_comp); | |
373 | upstream_comp_cls = upstream_comp->class; | |
374 | BT_ASSERT(upstream_comp->class->type == | |
375 | BT_COMPONENT_CLASS_TYPE_SOURCE || | |
376 | upstream_comp->class->type == | |
377 | BT_COMPONENT_CLASS_TYPE_FILTER); | |
378 | iterator = bt_self_component_port_input_notification_iterator_create_initial( | |
379 | upstream_comp, upstream_port); | |
380 | if (!iterator) { | |
381 | BT_LOGW_STR("Cannot create self component input port " | |
382 | "notification iterator."); | |
383 | goto end; | |
384 | } | |
890882ef | 385 | |
d94d92ac PP |
386 | switch (upstream_comp_cls->type) { |
387 | case BT_COMPONENT_CLASS_TYPE_SOURCE: | |
388 | { | |
389 | struct bt_component_class_source *src_comp_cls = | |
390 | (void *) upstream_comp_cls; | |
391 | ||
392 | init_method = | |
393 | (init_method_t) src_comp_cls->methods.notif_iter_init; | |
394 | break; | |
395 | } | |
396 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
397 | { | |
398 | struct bt_component_class_filter *flt_comp_cls = | |
399 | (void *) upstream_comp_cls; | |
400 | ||
401 | init_method = | |
402 | (init_method_t) flt_comp_cls->methods.notif_iter_init; | |
403 | break; | |
404 | } | |
405 | default: | |
406 | /* Unreachable */ | |
407 | abort(); | |
408 | } | |
409 | ||
410 | if (init_method) { | |
411 | int iter_status; | |
412 | ||
413 | BT_LIB_LOGD("Calling user's initialization method: %!+i", iterator); | |
414 | iter_status = init_method(iterator, upstream_comp, | |
415 | upstream_port); | |
416 | BT_LOGD("User method returned: status=%s", | |
417 | bt_notification_iterator_status_string(iter_status)); | |
418 | if (iter_status != BT_NOTIFICATION_ITERATOR_STATUS_OK) { | |
419 | BT_LOGW_STR("Initialization method failed."); | |
420 | goto end; | |
421 | } | |
422 | } | |
423 | ||
424 | iterator->state = BT_SELF_COMPONENT_PORT_INPUT_NOTIFICATION_ITERATOR_STATE_ACTIVE; | |
425 | g_ptr_array_add(port->connection->iterators, iterator); | |
426 | BT_LIB_LOGD("Created notification iterator on self component input port: " | |
427 | "%![up-port-]+p, %![up-comp-]+c, %![iter-]+i", | |
428 | upstream_port, upstream_comp, iterator); | |
429 | ||
430 | end: | |
431 | return iterator; | |
ea8d3e58 JG |
432 | } |
433 | ||
d94d92ac PP |
434 | void *bt_self_notification_iterator_get_data( |
435 | struct bt_self_notification_iterator *self_iterator) | |
ea8d3e58 | 436 | { |
d94d92ac PP |
437 | struct bt_self_component_port_input_notification_iterator *iterator = |
438 | (void *) self_iterator; | |
ea8d3e58 | 439 | |
f42867e2 | 440 | BT_ASSERT_PRE_NON_NULL(iterator, "Notification iterator"); |
d94d92ac | 441 | return iterator->user_data; |
8738a040 | 442 | } |
413bc2c4 | 443 | |
d94d92ac PP |
444 | void bt_self_notification_iterator_set_data( |
445 | struct bt_self_notification_iterator *self_iterator, void *data) | |
5c563278 | 446 | { |
d94d92ac PP |
447 | struct bt_self_component_port_input_notification_iterator *iterator = |
448 | (void *) self_iterator; | |
5c563278 PP |
449 | |
450 | BT_ASSERT_PRE_NON_NULL(iterator, "Notification iterator"); | |
d94d92ac PP |
451 | iterator->user_data = data; |
452 | BT_LIB_LOGV("Set notification iterator's user data: " | |
453 | "%!+i, user-data-addr=%p", iterator, data); | |
5c563278 PP |
454 | } |
455 | ||
f42867e2 PP |
456 | BT_ASSERT_PRE_FUNC |
457 | static inline | |
458 | void bt_notification_borrow_packet_stream(struct bt_notification *notif, | |
459 | struct bt_stream **stream, struct bt_packet **packet) | |
fa054faf | 460 | { |
f42867e2 | 461 | BT_ASSERT(notif); |
fa054faf | 462 | |
f42867e2 | 463 | switch (notif->type) { |
fa054faf | 464 | case BT_NOTIFICATION_TYPE_EVENT: |
f42867e2 PP |
465 | *packet = bt_event_borrow_packet( |
466 | bt_notification_event_borrow_event(notif)); | |
467 | *stream = bt_packet_borrow_stream(*packet); | |
fa054faf PP |
468 | break; |
469 | case BT_NOTIFICATION_TYPE_STREAM_BEGIN: | |
f42867e2 | 470 | *stream = bt_notification_stream_begin_borrow_stream(notif); |
fa054faf PP |
471 | break; |
472 | case BT_NOTIFICATION_TYPE_STREAM_END: | |
f42867e2 | 473 | *stream = bt_notification_stream_end_borrow_stream(notif); |
fa054faf PP |
474 | break; |
475 | case BT_NOTIFICATION_TYPE_PACKET_BEGIN: | |
f42867e2 PP |
476 | *packet = bt_notification_packet_begin_borrow_packet(notif); |
477 | *stream = bt_packet_borrow_stream(*packet); | |
fa054faf PP |
478 | break; |
479 | case BT_NOTIFICATION_TYPE_PACKET_END: | |
f42867e2 PP |
480 | *packet = bt_notification_packet_end_borrow_packet(notif); |
481 | *stream = bt_packet_borrow_stream(*packet); | |
2ec84d26 | 482 | break; |
fa054faf | 483 | default: |
f42867e2 | 484 | break; |
fa054faf | 485 | } |
fa054faf PP |
486 | } |
487 | ||
f42867e2 PP |
488 | BT_ASSERT_PRE_FUNC |
489 | static inline | |
490 | bool validate_notification( | |
d94d92ac | 491 | struct bt_self_component_port_input_notification_iterator *iterator, |
f42867e2 | 492 | struct bt_notification *notif) |
3230ee6b | 493 | { |
f42867e2 | 494 | bool is_valid = true; |
3230ee6b | 495 | struct stream_state *stream_state; |
f42867e2 PP |
496 | struct bt_stream *stream = NULL; |
497 | struct bt_packet *packet = NULL; | |
498 | ||
499 | BT_ASSERT(notif); | |
500 | bt_notification_borrow_packet_stream(notif, &stream, &packet); | |
501 | ||
502 | if (!stream) { | |
503 | /* we don't care about notifications not attached to streams */ | |
504 | goto end; | |
505 | } | |
3230ee6b | 506 | |
f42867e2 PP |
507 | stream_state = g_hash_table_lookup(iterator->stream_states, stream); |
508 | if (!stream_state) { | |
3230ee6b | 509 | /* |
f42867e2 PP |
510 | * No stream state for this stream: this notification |
511 | * MUST be a BT_NOTIFICATION_TYPE_STREAM_BEGIN notification | |
512 | * and its sequence number must be 0. | |
3230ee6b | 513 | */ |
f42867e2 PP |
514 | if (notif->type != BT_NOTIFICATION_TYPE_STREAM_BEGIN) { |
515 | BT_ASSERT_PRE_MSG("Unexpected notification: missing a " | |
516 | "BT_NOTIFICATION_TYPE_STREAM_BEGIN " | |
517 | "notification prior to this notification: " | |
518 | "%![stream-]+s", stream); | |
519 | is_valid = false; | |
3230ee6b PP |
520 | goto end; |
521 | } | |
522 | ||
f42867e2 PP |
523 | if (notif->seq_num == -1ULL) { |
524 | notif->seq_num = 0; | |
3230ee6b PP |
525 | } |
526 | ||
f42867e2 PP |
527 | if (notif->seq_num != 0) { |
528 | BT_ASSERT_PRE_MSG("Unexpected notification sequence " | |
529 | "number for this notification iterator: " | |
530 | "this is the first notification for this " | |
531 | "stream, expecting sequence number 0: " | |
532 | "seq-num=%" PRIu64 ", %![stream-]+s", | |
533 | notif->seq_num, stream); | |
534 | is_valid = false; | |
3230ee6b | 535 | goto end; |
3230ee6b | 536 | } |
3230ee6b | 537 | |
f42867e2 PP |
538 | stream_state = create_stream_state(stream); |
539 | if (!stream_state) { | |
540 | abort(); | |
541 | } | |
fa054faf | 542 | |
f42867e2 PP |
543 | g_hash_table_insert(iterator->stream_states, stream, |
544 | stream_state); | |
545 | stream_state->expected_notif_seq_num++; | |
546 | goto end; | |
fa054faf PP |
547 | } |
548 | ||
f42867e2 PP |
549 | if (stream_state->is_ended) { |
550 | /* | |
551 | * There's a new notification which has a reference to a | |
552 | * stream which, from this iterator's point of view, is | |
553 | * ended ("end of stream" notification was returned). | |
554 | * This is bad: the API guarantees that it can never | |
555 | * happen. | |
556 | */ | |
557 | BT_ASSERT_PRE_MSG("Stream is already ended: %![stream-]+s", | |
558 | stream); | |
559 | is_valid = false; | |
fa054faf PP |
560 | goto end; |
561 | } | |
562 | ||
f42867e2 PP |
563 | if (notif->seq_num == -1ULL) { |
564 | notif->seq_num = stream_state->expected_notif_seq_num; | |
3230ee6b PP |
565 | } |
566 | ||
f42867e2 PP |
567 | if (notif->seq_num != -1ULL && |
568 | notif->seq_num != stream_state->expected_notif_seq_num) { | |
569 | BT_ASSERT_PRE_MSG("Unexpected notification sequence number: " | |
570 | "seq-num=%" PRIu64 ", " | |
571 | "expected-seq-num=%" PRIu64 ", %![stream-]+s", | |
572 | notif->seq_num, stream_state->expected_notif_seq_num, | |
573 | stream); | |
574 | is_valid = false; | |
fa054faf PP |
575 | goto end; |
576 | } | |
577 | ||
f42867e2 PP |
578 | switch (notif->type) { |
579 | case BT_NOTIFICATION_TYPE_STREAM_BEGIN: | |
580 | BT_ASSERT_PRE_MSG("Unexpected BT_NOTIFICATION_TYPE_STREAM_BEGIN " | |
581 | "notification at this point: notif-seq-num=%" PRIu64 ", " | |
582 | "%![stream-]+s", notif->seq_num, stream); | |
583 | is_valid = false; | |
584 | goto end; | |
585 | case BT_NOTIFICATION_TYPE_STREAM_END: | |
586 | if (stream_state->cur_packet) { | |
587 | BT_ASSERT_PRE_MSG("Unexpected BT_NOTIFICATION_TYPE_STREAM_END " | |
588 | "notification: missing a " | |
589 | "BT_NOTIFICATION_TYPE_PACKET_END notification " | |
590 | "prior to this notification: " | |
591 | "notif-seq-num=%" PRIu64 ", " | |
592 | "%![stream-]+s", notif->seq_num, stream); | |
593 | is_valid = false; | |
594 | goto end; | |
595 | } | |
596 | stream_state->expected_notif_seq_num++; | |
597 | stream_state->is_ended = true; | |
598 | goto end; | |
599 | case BT_NOTIFICATION_TYPE_PACKET_BEGIN: | |
600 | if (stream_state->cur_packet) { | |
601 | BT_ASSERT_PRE_MSG("Unexpected BT_NOTIFICATION_TYPE_PACKET_BEGIN " | |
602 | "notification at this point: missing a " | |
603 | "BT_NOTIFICATION_TYPE_PACKET_END notification " | |
604 | "prior to this notification: " | |
605 | "notif-seq-num=%" PRIu64 ", %![stream-]+s, " | |
606 | "%![packet-]+a", notif->seq_num, stream, | |
607 | packet); | |
608 | is_valid = false; | |
609 | goto end; | |
610 | } | |
611 | stream_state->expected_notif_seq_num++; | |
65300d60 | 612 | stream_state->cur_packet = bt_object_get_ref(packet); |
f42867e2 PP |
613 | goto end; |
614 | case BT_NOTIFICATION_TYPE_PACKET_END: | |
615 | if (!stream_state->cur_packet) { | |
616 | BT_ASSERT_PRE_MSG("Unexpected BT_NOTIFICATION_TYPE_PACKET_END " | |
617 | "notification at this point: missing a " | |
618 | "BT_NOTIFICATION_TYPE_PACKET_BEGIN notification " | |
619 | "prior to this notification: " | |
620 | "notif-seq-num=%" PRIu64 ", %![stream-]+s, " | |
621 | "%![packet-]+a", notif->seq_num, stream, | |
622 | packet); | |
623 | is_valid = false; | |
624 | goto end; | |
625 | } | |
626 | stream_state->expected_notif_seq_num++; | |
65300d60 | 627 | BT_OBJECT_PUT_REF_AND_RESET(stream_state->cur_packet); |
f42867e2 PP |
628 | goto end; |
629 | case BT_NOTIFICATION_TYPE_EVENT: | |
630 | if (packet != stream_state->cur_packet) { | |
631 | BT_ASSERT_PRE_MSG("Unexpected packet for " | |
632 | "BT_NOTIFICATION_TYPE_EVENT notification: " | |
633 | "notif-seq-num=%" PRIu64 ", %![stream-]+s, " | |
634 | "%![notif-packet-]+a, %![expected-packet-]+a", | |
635 | notif->seq_num, stream, | |
636 | stream_state->cur_packet, packet); | |
637 | is_valid = false; | |
638 | goto end; | |
639 | } | |
640 | stream_state->expected_notif_seq_num++; | |
641 | goto end; | |
642 | default: | |
643 | break; | |
3230ee6b PP |
644 | } |
645 | ||
3230ee6b | 646 | end: |
f42867e2 | 647 | return is_valid; |
3230ee6b PP |
648 | } |
649 | ||
d4393e08 PP |
650 | BT_ASSERT_PRE_FUNC |
651 | static inline | |
652 | bool validate_notifications( | |
d94d92ac | 653 | struct bt_self_component_port_input_notification_iterator *iterator, |
d4393e08 PP |
654 | uint64_t count) |
655 | { | |
656 | bool ret = true; | |
657 | bt_notification_array notifs = (void *) iterator->base.notifs->pdata; | |
658 | uint64_t i; | |
659 | ||
660 | for (i = 0; i < count; i++) { | |
661 | ret = validate_notification(iterator, notifs[i]); | |
662 | if (!ret) { | |
663 | break; | |
664 | } | |
665 | } | |
666 | ||
667 | return ret; | |
668 | } | |
669 | ||
f42867e2 PP |
670 | BT_ASSERT_PRE_FUNC |
671 | static inline bool priv_conn_notif_iter_can_end( | |
d94d92ac | 672 | struct bt_self_component_port_input_notification_iterator *iterator) |
3230ee6b | 673 | { |
f42867e2 PP |
674 | GHashTableIter iter; |
675 | gpointer stream_key, state_value; | |
676 | bool ret = true; | |
3230ee6b | 677 | |
f42867e2 PP |
678 | /* |
679 | * Verify that this iterator received a | |
680 | * BT_NOTIFICATION_TYPE_STREAM_END notification for each stream | |
681 | * which has a state. | |
682 | */ | |
3230ee6b | 683 | |
f42867e2 | 684 | g_hash_table_iter_init(&iter, iterator->stream_states); |
3230ee6b | 685 | |
f42867e2 PP |
686 | while (g_hash_table_iter_next(&iter, &stream_key, &state_value)) { |
687 | struct stream_state *stream_state = (void *) state_value; | |
3230ee6b | 688 | |
f42867e2 PP |
689 | BT_ASSERT(stream_state); |
690 | BT_ASSERT(stream_key); | |
fa054faf | 691 | |
f42867e2 PP |
692 | if (!stream_state->is_ended) { |
693 | BT_ASSERT_PRE_MSG("Ending notification iterator, " | |
694 | "but stream is not ended: " | |
695 | "%![stream-]s", stream_key); | |
696 | ret = false; | |
697 | goto end; | |
698 | } | |
3230ee6b PP |
699 | } |
700 | ||
3230ee6b | 701 | end: |
3230ee6b PP |
702 | return ret; |
703 | } | |
704 | ||
f42867e2 | 705 | enum bt_notification_iterator_status |
d94d92ac PP |
706 | bt_self_component_port_input_notification_iterator_next( |
707 | struct bt_self_component_port_input_notification_iterator *iterator, | |
708 | bt_notification_array *notifs, uint64_t *user_count) | |
3230ee6b | 709 | { |
d94d92ac PP |
710 | typedef enum bt_self_notification_iterator_status (*method_t)( |
711 | void *, bt_notification_array, uint64_t, uint64_t *); | |
712 | ||
713 | method_t method = NULL; | |
714 | struct bt_component_class *comp_cls; | |
715 | int status = BT_NOTIFICATION_ITERATOR_STATUS_OK; | |
716 | ||
717 | BT_ASSERT_PRE_NON_NULL(iterator, "Notification iterator"); | |
718 | BT_ASSERT_PRE_NON_NULL(notifs, "Notification array (output)"); | |
719 | BT_ASSERT_PRE_NON_NULL(user_count, "Notification count (output)"); | |
f42867e2 | 720 | BT_ASSERT_PRE(iterator->state == |
d94d92ac | 721 | BT_SELF_COMPONENT_PORT_INPUT_NOTIFICATION_ITERATOR_STATE_ACTIVE, |
f42867e2 PP |
722 | "Notification iterator's \"next\" called, but " |
723 | "iterator is in the wrong state: %!+i", iterator); | |
724 | BT_ASSERT(iterator->upstream_component); | |
725 | BT_ASSERT(iterator->upstream_component->class); | |
d94d92ac PP |
726 | BT_LIB_LOGD("Getting next self component input port " |
727 | "notification iterator's notifications: %!+i", iterator); | |
728 | comp_cls = iterator->upstream_component->class; | |
d3eb6e8f | 729 | |
3230ee6b | 730 | /* Pick the appropriate "next" method */ |
d94d92ac | 731 | switch (comp_cls->type) { |
d3eb6e8f PP |
732 | case BT_COMPONENT_CLASS_TYPE_SOURCE: |
733 | { | |
d94d92ac PP |
734 | struct bt_component_class_source *src_comp_cls = |
735 | (void *) comp_cls; | |
d3eb6e8f | 736 | |
d94d92ac | 737 | method = (method_t) src_comp_cls->methods.notif_iter_next; |
d3eb6e8f PP |
738 | break; |
739 | } | |
740 | case BT_COMPONENT_CLASS_TYPE_FILTER: | |
741 | { | |
d94d92ac PP |
742 | struct bt_component_class_filter *flt_comp_cls = |
743 | (void *) comp_cls; | |
d3eb6e8f | 744 | |
d94d92ac | 745 | method = (method_t) flt_comp_cls->methods.notif_iter_next; |
d3eb6e8f PP |
746 | break; |
747 | } | |
748 | default: | |
0fbb9a9f | 749 | abort(); |
d3eb6e8f PP |
750 | } |
751 | ||
3230ee6b | 752 | /* |
d94d92ac | 753 | * Call the user's "next" method to get the next notifications |
fa054faf | 754 | * and status. |
3230ee6b | 755 | */ |
d94d92ac | 756 | BT_ASSERT(method); |
f42867e2 | 757 | BT_LOGD_STR("Calling user's \"next\" method."); |
d94d92ac PP |
758 | status = method(iterator, |
759 | (void *) iterator->base.notifs->pdata, | |
d4393e08 | 760 | NOTIF_BATCH_SIZE, user_count); |
f42867e2 | 761 | BT_LOGD("User method returned: status=%s", |
d4393e08 PP |
762 | bt_notification_iterator_status_string(status)); |
763 | if (status < 0) { | |
f42867e2 | 764 | BT_LOGW_STR("User method failed."); |
f42867e2 PP |
765 | goto end; |
766 | } | |
3230ee6b | 767 | |
d94d92ac PP |
768 | if (iterator->state == BT_SELF_COMPONENT_PORT_INPUT_NOTIFICATION_ITERATOR_STATE_FINALIZED || |
769 | iterator->state == BT_SELF_COMPONENT_PORT_INPUT_NOTIFICATION_ITERATOR_STATE_FINALIZED_AND_ENDED) { | |
f42867e2 PP |
770 | /* |
771 | * The user's "next" method, somehow, cancelled its own | |
772 | * notification iterator. This can happen, for example, | |
773 | * when the user's method removes the port on which | |
774 | * there's the connection from which the iterator was | |
775 | * created. In this case, said connection is ended, and | |
776 | * all its notification iterators are finalized. | |
777 | * | |
65300d60 | 778 | * Only bt_object_put_ref() the returned notification if |
d94d92ac PP |
779 | * the status is BT_NOTIFICATION_ITERATOR_STATUS_OK |
780 | * because otherwise this field could be garbage. | |
f42867e2 | 781 | */ |
d4393e08 PP |
782 | if (status == BT_NOTIFICATION_ITERATOR_STATUS_OK) { |
783 | uint64_t i; | |
784 | bt_notification_array notifs = | |
d94d92ac | 785 | (void *) iterator->base.notifs->pdata; |
d4393e08 PP |
786 | |
787 | for (i = 0; i < *user_count; i++) { | |
65300d60 | 788 | bt_object_put_ref(notifs[i]); |
d4393e08 | 789 | } |
3230ee6b PP |
790 | } |
791 | ||
f42867e2 PP |
792 | status = BT_NOTIFICATION_ITERATOR_STATUS_CANCELED; |
793 | goto end; | |
794 | } | |
8cf27cc5 | 795 | |
d4393e08 PP |
796 | switch (status) { |
797 | case BT_NOTIFICATION_ITERATOR_STATUS_OK: | |
798 | BT_ASSERT_PRE(validate_notifications(iterator, *user_count), | |
799 | "Notifications are invalid at this point: " | |
800 | "%![notif-iter-]+i, count=%" PRIu64, | |
801 | iterator, *user_count); | |
d94d92ac | 802 | *notifs = (void *) iterator->base.notifs->pdata; |
d4393e08 PP |
803 | break; |
804 | case BT_NOTIFICATION_ITERATOR_STATUS_AGAIN: | |
d4393e08 | 805 | goto end; |
f42867e2 PP |
806 | case BT_NOTIFICATION_ITERATOR_STATUS_END: |
807 | BT_ASSERT_PRE(priv_conn_notif_iter_can_end(iterator), | |
808 | "Notification iterator cannot end at this point: " | |
809 | "%!+i", iterator); | |
810 | BT_ASSERT(iterator->state == | |
d94d92ac PP |
811 | BT_SELF_COMPONENT_PORT_INPUT_NOTIFICATION_ITERATOR_STATE_ACTIVE); |
812 | iterator->state = BT_SELF_COMPONENT_PORT_INPUT_NOTIFICATION_ITERATOR_STATE_ENDED; | |
f42867e2 PP |
813 | BT_LOGD("Set new status: status=%s", |
814 | bt_notification_iterator_status_string(status)); | |
815 | goto end; | |
f42867e2 PP |
816 | default: |
817 | /* Unknown non-error status */ | |
818 | abort(); | |
41a2b7ae PP |
819 | } |
820 | ||
821 | end: | |
3230ee6b PP |
822 | return status; |
823 | } | |
824 | ||
825 | enum bt_notification_iterator_status | |
d94d92ac PP |
826 | bt_port_output_notification_iterator_next( |
827 | struct bt_port_output_notification_iterator *iterator, | |
d4393e08 PP |
828 | bt_notification_array *notifs_to_user, |
829 | uint64_t *count_to_user) | |
3230ee6b PP |
830 | { |
831 | enum bt_notification_iterator_status status; | |
07245ac2 | 832 | enum bt_graph_status graph_status; |
3230ee6b | 833 | |
f42867e2 | 834 | BT_ASSERT_PRE_NON_NULL(iterator, "Notification iterator"); |
d94d92ac PP |
835 | BT_ASSERT_PRE_NON_NULL(notifs_to_user, "Notification array (output)"); |
836 | BT_ASSERT_PRE_NON_NULL(count_to_user, "Notification count (output)"); | |
837 | BT_LIB_LOGD("Getting next output port notification iterator's notifications: " | |
07245ac2 | 838 | "%!+i", iterator); |
d4393e08 | 839 | |
d94d92ac PP |
840 | graph_status = bt_graph_consume_sink_no_check(iterator->graph, |
841 | iterator->colander); | |
07245ac2 PP |
842 | switch (graph_status) { |
843 | case BT_GRAPH_STATUS_CANCELED: | |
07245ac2 | 844 | case BT_GRAPH_STATUS_AGAIN: |
07245ac2 | 845 | case BT_GRAPH_STATUS_END: |
07245ac2 | 846 | case BT_GRAPH_STATUS_NOMEM: |
d94d92ac | 847 | status = (int) graph_status; |
07245ac2 PP |
848 | break; |
849 | case BT_GRAPH_STATUS_OK: | |
07245ac2 | 850 | status = BT_NOTIFICATION_ITERATOR_STATUS_OK; |
d4393e08 PP |
851 | |
852 | /* | |
853 | * On success, the colander sink moves the notifications | |
854 | * to this iterator's array and sets this iterator's | |
855 | * notification count: move them to the user. | |
856 | */ | |
d94d92ac PP |
857 | *notifs_to_user = (void *) iterator->base.notifs->pdata; |
858 | *count_to_user = iterator->count; | |
90157d89 | 859 | break; |
90157d89 | 860 | default: |
07245ac2 PP |
861 | /* Other errors */ |
862 | status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR; | |
90157d89 | 863 | } |
3230ee6b | 864 | |
3230ee6b | 865 | return status; |
53d45b87 JG |
866 | } |
867 | ||
d94d92ac PP |
868 | struct bt_component *bt_self_component_port_input_notification_iterator_borrow_component( |
869 | struct bt_self_component_port_input_notification_iterator *iterator) | |
870 | { | |
871 | BT_ASSERT_PRE_NON_NULL(iterator, "Notification iterator"); | |
872 | return iterator->upstream_component; | |
873 | } | |
874 | ||
875 | struct bt_self_component *bt_self_notification_iterator_borrow_component( | |
876 | struct bt_self_notification_iterator *self_iterator) | |
413bc2c4 | 877 | { |
d94d92ac PP |
878 | struct bt_self_component_port_input_notification_iterator *iterator = |
879 | (void *) self_iterator; | |
90157d89 | 880 | |
f42867e2 | 881 | BT_ASSERT_PRE_NON_NULL(iterator, "Notification iterator"); |
d94d92ac | 882 | return (void *) iterator->upstream_component; |
413bc2c4 JG |
883 | } |
884 | ||
d94d92ac PP |
885 | struct bt_self_port_output *bt_self_notification_iterator_borrow_port( |
886 | struct bt_self_notification_iterator *self_iterator) | |
91457551 | 887 | { |
d94d92ac PP |
888 | struct bt_self_component_port_input_notification_iterator *iterator = |
889 | (void *) self_iterator; | |
890 | ||
891 | BT_ASSERT_PRE_NON_NULL(iterator, "Notification iterator"); | |
892 | return (void *) iterator->upstream_port; | |
91457551 | 893 | } |
8ed535b5 PP |
894 | |
895 | static | |
d94d92ac | 896 | void bt_port_output_notification_iterator_destroy(struct bt_object *obj) |
8ed535b5 | 897 | { |
d94d92ac | 898 | struct bt_port_output_notification_iterator *iterator = (void *) obj; |
8ed535b5 | 899 | |
d94d92ac | 900 | BT_LIB_LOGD("Destroying output port notification iterator object: %!+i", |
8ed535b5 PP |
901 | iterator); |
902 | BT_LOGD_STR("Putting graph."); | |
d94d92ac | 903 | BT_OBJECT_PUT_REF_AND_RESET(iterator->graph); |
8ed535b5 | 904 | BT_LOGD_STR("Putting colander sink component."); |
d94d92ac | 905 | BT_OBJECT_PUT_REF_AND_RESET(iterator->colander); |
8ed535b5 PP |
906 | destroy_base_notification_iterator(obj); |
907 | } | |
908 | ||
d94d92ac PP |
909 | struct bt_port_output_notification_iterator * |
910 | bt_port_output_notification_iterator_create( | |
911 | struct bt_private_graph *priv_graph, | |
5fd91d88 | 912 | struct bt_port_output *output_port) |
8ed535b5 | 913 | { |
d94d92ac PP |
914 | struct bt_port_output_notification_iterator *iterator = NULL; |
915 | struct bt_component_class_sink *colander_comp_cls = NULL; | |
8ed535b5 | 916 | struct bt_component *output_port_comp = NULL; |
d94d92ac PP |
917 | struct bt_component_sink *colander_comp; |
918 | struct bt_graph *graph = (void *) priv_graph; | |
8ed535b5 | 919 | enum bt_graph_status graph_status; |
d94d92ac | 920 | struct bt_port_input *colander_in_port = NULL; |
8ed535b5 | 921 | struct bt_component_class_sink_colander_data colander_data; |
d4393e08 | 922 | int ret; |
8ed535b5 | 923 | |
d94d92ac | 924 | BT_ASSERT_PRE_NON_NULL(graph, "Graph"); |
f42867e2 | 925 | BT_ASSERT_PRE_NON_NULL(output_port, "Output port"); |
d94d92ac | 926 | output_port_comp = bt_port_borrow_component((void *) output_port); |
f42867e2 PP |
927 | BT_ASSERT_PRE(output_port_comp, |
928 | "Output port has no component: %!+p", output_port); | |
d94d92ac PP |
929 | BT_ASSERT_PRE(bt_component_borrow_graph(output_port_comp) == |
930 | (void *) graph, | |
931 | "Output port is not part of graph: %![graph-]+g, %![port-]+p", | |
932 | graph, output_port); | |
8ed535b5 PP |
933 | |
934 | /* Create notification iterator */ | |
d94d92ac PP |
935 | BT_LIB_LOGD("Creating notification iterator on output port: " |
936 | "%![port-]+p, %![comp-]+c", output_port, output_port_comp); | |
937 | iterator = g_new0(struct bt_port_output_notification_iterator, 1); | |
8ed535b5 PP |
938 | if (!iterator) { |
939 | BT_LOGE_STR("Failed to allocate one output port notification iterator."); | |
940 | goto error; | |
941 | } | |
942 | ||
d4393e08 | 943 | ret = init_notification_iterator((void *) iterator, |
d94d92ac PP |
944 | BT_NOTIFICATION_ITERATOR_TYPE_PORT_OUTPUT, |
945 | bt_port_output_notification_iterator_destroy); | |
d4393e08 PP |
946 | if (ret) { |
947 | /* init_notification_iterator() logs errors */ | |
65300d60 | 948 | BT_OBJECT_PUT_REF_AND_RESET(iterator); |
d4393e08 PP |
949 | goto end; |
950 | } | |
8ed535b5 PP |
951 | |
952 | /* Create colander component */ | |
953 | colander_comp_cls = bt_component_class_sink_colander_get(); | |
954 | if (!colander_comp_cls) { | |
955 | BT_LOGW("Cannot get colander sink component class."); | |
956 | goto error; | |
957 | } | |
958 | ||
d94d92ac | 959 | iterator->graph = bt_object_get_ref(graph); |
d4393e08 PP |
960 | colander_data.notifs = (void *) iterator->base.notifs->pdata; |
961 | colander_data.count_addr = &iterator->count; | |
5fd91d88 PP |
962 | |
963 | /* Hope that nobody uses this very unique name */ | |
d94d92ac PP |
964 | graph_status = |
965 | bt_private_graph_add_sink_component_with_init_method_data( | |
5fd91d88 PP |
966 | (void *) graph, colander_comp_cls, |
967 | "colander-36ac3409-b1a8-4d60-ab1f-4fdf341a8fb1", | |
d94d92ac | 968 | NULL, &colander_data, &iterator->colander); |
8ed535b5 | 969 | if (graph_status != BT_GRAPH_STATUS_OK) { |
d94d92ac PP |
970 | BT_LIB_LOGW("Cannot add colander sink component to graph: " |
971 | "%1[graph-]+g, status=%s", graph, | |
8ed535b5 PP |
972 | bt_graph_status_string(graph_status)); |
973 | goto error; | |
974 | } | |
975 | ||
976 | /* | |
977 | * Connect provided output port to the colander component's | |
978 | * input port. | |
979 | */ | |
d94d92ac | 980 | colander_in_port = bt_component_sink_borrow_input_port_by_index( |
8ed535b5 | 981 | iterator->colander, 0); |
f6ccaed9 | 982 | BT_ASSERT(colander_in_port); |
d94d92ac | 983 | graph_status = bt_private_graph_connect_ports(priv_graph, |
8ed535b5 PP |
984 | output_port, colander_in_port, NULL); |
985 | if (graph_status != BT_GRAPH_STATUS_OK) { | |
d94d92ac PP |
986 | BT_LIB_LOGW("Cannot add colander sink component to graph: " |
987 | "%![graph-]+g, %![comp-]+c, status=%s", graph, | |
988 | iterator->colander, | |
8ed535b5 PP |
989 | bt_graph_status_string(graph_status)); |
990 | goto error; | |
991 | } | |
992 | ||
993 | /* | |
994 | * At this point everything went fine. Make the graph | |
995 | * nonconsumable forever so that only this notification iterator | |
996 | * can consume (thanks to bt_graph_consume_sink_no_check()). | |
997 | * This avoids leaking the notification created by the colander | |
07245ac2 PP |
998 | * sink and moved to the notification iterator's notification |
999 | * member. | |
8ed535b5 | 1000 | */ |
d94d92ac | 1001 | bt_graph_set_can_consume(iterator->graph, false); |
8ed535b5 PP |
1002 | goto end; |
1003 | ||
1004 | error: | |
1005 | if (iterator && iterator->graph && iterator->colander) { | |
1006 | int ret; | |
1007 | ||
1008 | /* Remove created colander component from graph if any */ | |
1009 | colander_comp = iterator->colander; | |
65300d60 | 1010 | BT_OBJECT_PUT_REF_AND_RESET(iterator->colander); |
8ed535b5 PP |
1011 | |
1012 | /* | |
1013 | * At this point the colander component's reference | |
1014 | * count is 0 because iterator->colander was the only | |
1015 | * owner. We also know that it is not connected because | |
1016 | * this is the last operation before this function | |
1017 | * succeeds. | |
1018 | * | |
1019 | * Since we honor the preconditions here, | |
1020 | * bt_graph_remove_unconnected_component() always | |
1021 | * succeeds. | |
1022 | */ | |
1023 | ret = bt_graph_remove_unconnected_component(iterator->graph, | |
d94d92ac | 1024 | (void *) colander_comp); |
f6ccaed9 | 1025 | BT_ASSERT(ret == 0); |
8ed535b5 PP |
1026 | } |
1027 | ||
65300d60 | 1028 | BT_OBJECT_PUT_REF_AND_RESET(iterator); |
8ed535b5 PP |
1029 | |
1030 | end: | |
65300d60 | 1031 | bt_object_put_ref(colander_comp_cls); |
8ed535b5 PP |
1032 | return (void *) iterator; |
1033 | } |