| 1 | /* |
| 2 | * Copyright 2017 Philippe Proulx <pproulx@efficios.com> |
| 3 | * |
| 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: |
| 10 | * |
| 11 | * The above copyright notice and this permission notice shall be included in |
| 12 | * all copies or substantial portions of the Software. |
| 13 | * |
| 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 |
| 20 | * SOFTWARE. |
| 21 | */ |
| 22 | |
| 23 | #define BT_LOG_TAG "PLUGIN-UTILS-MUXER-FLT" |
| 24 | #include "logging.h" |
| 25 | |
| 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> |
| 34 | #include <glib.h> |
| 35 | #include <stdbool.h> |
| 36 | #include <inttypes.h> |
| 37 | #include <assert.h> |
| 38 | #include <stdlib.h> |
| 39 | #include <string.h> |
| 40 | |
| 41 | #define ASSUME_ABSOLUTE_CLOCK_CLASSES_PARAM_NAME "assume-absolute-clock-classes" |
| 42 | |
| 43 | struct muxer_comp { |
| 44 | /* |
| 45 | * Array of struct |
| 46 | * bt_private_connection_private_notification_iterator * |
| 47 | * (weak refs) |
| 48 | */ |
| 49 | GPtrArray *muxer_notif_iters; |
| 50 | |
| 51 | /* Weak ref */ |
| 52 | struct bt_private_component *priv_comp; |
| 53 | unsigned int next_port_num; |
| 54 | size_t available_input_ports; |
| 55 | bool error; |
| 56 | bool initializing_muxer_notif_iter; |
| 57 | bool assume_absolute_clock_classes; |
| 58 | }; |
| 59 | |
| 60 | struct muxer_upstream_notif_iter { |
| 61 | /* Owned by this, NULL if ended */ |
| 62 | struct bt_notification_iterator *notif_iter; |
| 63 | |
| 64 | /* |
| 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. |
| 71 | * |
| 72 | * The value of this flag is not important if notif_iter above |
| 73 | * is NULL (which means the upstream iterator is finished). |
| 74 | */ |
| 75 | bool is_valid; |
| 76 | }; |
| 77 | |
| 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, |
| 83 | }; |
| 84 | |
| 85 | struct muxer_notif_iter { |
| 86 | /* |
| 87 | * Array of struct muxer_upstream_notif_iter * (owned by this). |
| 88 | * |
| 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 |
| 92 | * use cases. |
| 93 | */ |
| 94 | GPtrArray *muxer_upstream_notif_iters; |
| 95 | |
| 96 | /* |
| 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(). |
| 104 | */ |
| 105 | GList *newly_connected_priv_ports; |
| 106 | |
| 107 | /* Next thing to return by the "next" method */ |
| 108 | struct bt_notification_iterator_next_method_return next_next_return; |
| 109 | |
| 110 | /* Last time returned in a notification */ |
| 111 | int64_t last_returned_ts_ns; |
| 112 | |
| 113 | /* Clock class expectation state */ |
| 114 | enum muxer_notif_iter_clock_class_expectation clock_class_expectation; |
| 115 | |
| 116 | /* |
| 117 | * Expected clock class UUID, only valid when |
| 118 | * clock_class_expectation is |
| 119 | * MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_SPEC_UUID. |
| 120 | */ |
| 121 | unsigned char expected_clock_class_uuid[BABELTRACE_UUID_LEN]; |
| 122 | }; |
| 123 | |
| 124 | static |
| 125 | void destroy_muxer_upstream_notif_iter( |
| 126 | struct muxer_upstream_notif_iter *muxer_upstream_notif_iter) |
| 127 | { |
| 128 | if (!muxer_upstream_notif_iter) { |
| 129 | return; |
| 130 | } |
| 131 | |
| 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); |
| 139 | } |
| 140 | |
| 141 | static |
| 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) |
| 146 | { |
| 147 | struct muxer_upstream_notif_iter *muxer_upstream_notif_iter = |
| 148 | g_new0(struct muxer_upstream_notif_iter, 1); |
| 149 | |
| 150 | if (!muxer_upstream_notif_iter) { |
| 151 | BT_LOGE_STR("Failed to allocate one muxer's upstream notification iterator wrapper."); |
| 152 | goto end; |
| 153 | } |
| 154 | |
| 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, |
| 162 | notif_iter); |
| 163 | |
| 164 | end: |
| 165 | return muxer_upstream_notif_iter; |
| 166 | } |
| 167 | |
| 168 | static |
| 169 | enum bt_component_status ensure_available_input_port( |
| 170 | struct bt_private_component *priv_comp) |
| 171 | { |
| 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; |
| 176 | |
| 177 | assert(muxer_comp); |
| 178 | |
| 179 | if (muxer_comp->available_input_ports >= 1) { |
| 180 | goto end; |
| 181 | } |
| 182 | |
| 183 | port_name = g_string_new("in"); |
| 184 | if (!port_name) { |
| 185 | BT_LOGE_STR("Failed to allocate a GString."); |
| 186 | status = BT_COMPONENT_STATUS_NOMEM; |
| 187 | goto end; |
| 188 | } |
| 189 | |
| 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)); |
| 198 | goto end; |
| 199 | } |
| 200 | |
| 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); |
| 206 | end: |
| 207 | if (port_name) { |
| 208 | g_string_free(port_name, TRUE); |
| 209 | } |
| 210 | |
| 211 | return status; |
| 212 | } |
| 213 | |
| 214 | static |
| 215 | enum bt_component_status create_output_port( |
| 216 | struct bt_private_component *priv_comp) |
| 217 | { |
| 218 | return bt_private_component_filter_add_output_private_port( |
| 219 | priv_comp, "out", NULL, NULL); |
| 220 | } |
| 221 | |
| 222 | static |
| 223 | void destroy_muxer_comp(struct muxer_comp *muxer_comp) |
| 224 | { |
| 225 | if (!muxer_comp) { |
| 226 | return; |
| 227 | } |
| 228 | |
| 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); |
| 233 | |
| 234 | if (muxer_comp->muxer_notif_iters) { |
| 235 | g_ptr_array_free(muxer_comp->muxer_notif_iters, TRUE); |
| 236 | } |
| 237 | |
| 238 | g_free(muxer_comp); |
| 239 | } |
| 240 | |
| 241 | static |
| 242 | struct bt_value *get_default_params(void) |
| 243 | { |
| 244 | struct bt_value *params; |
| 245 | int ret; |
| 246 | |
| 247 | params = bt_value_map_create(); |
| 248 | if (!params) { |
| 249 | BT_LOGE_STR("Cannot create a map value object."); |
| 250 | goto error; |
| 251 | } |
| 252 | |
| 253 | ret = bt_value_map_insert_bool(params, |
| 254 | ASSUME_ABSOLUTE_CLOCK_CLASSES_PARAM_NAME, false); |
| 255 | if (ret) { |
| 256 | BT_LOGE_STR("Cannot add boolean value to map value object."); |
| 257 | goto error; |
| 258 | } |
| 259 | |
| 260 | goto end; |
| 261 | |
| 262 | error: |
| 263 | BT_PUT(params); |
| 264 | |
| 265 | end: |
| 266 | return params; |
| 267 | } |
| 268 | |
| 269 | static |
| 270 | int configure_muxer_comp(struct muxer_comp *muxer_comp, struct bt_value *params) |
| 271 | { |
| 272 | struct bt_value *default_params = NULL; |
| 273 | struct bt_value *real_params = NULL; |
| 274 | struct bt_value *assume_absolute_clock_classes = NULL; |
| 275 | int ret = 0; |
| 276 | bt_bool bool_val; |
| 277 | |
| 278 | default_params = get_default_params(); |
| 279 | if (!default_params) { |
| 280 | BT_LOGE("Cannot get default parameters: " |
| 281 | "muxer-comp-addr=%p", muxer_comp); |
| 282 | goto error; |
| 283 | } |
| 284 | |
| 285 | real_params = bt_value_map_extend(default_params, params); |
| 286 | if (!real_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, |
| 290 | params); |
| 291 | goto error; |
| 292 | } |
| 293 | |
| 294 | assume_absolute_clock_classes = bt_value_map_get(real_params, |
| 295 | ASSUME_ABSOLUTE_CLOCK_CLASSES_PARAM_NAME); |
| 296 | if (!bt_value_is_bool(assume_absolute_clock_classes)) { |
| 297 | BT_LOGE("Expecting a boolean value for the `%s` parameter: " |
| 298 | "muxer-comp-addr=%p, value-type=%s", |
| 299 | ASSUME_ABSOLUTE_CLOCK_CLASSES_PARAM_NAME, muxer_comp, |
| 300 | bt_value_type_string( |
| 301 | bt_value_get_type(assume_absolute_clock_classes))); |
| 302 | goto error; |
| 303 | } |
| 304 | |
| 305 | ret = bt_value_bool_get(assume_absolute_clock_classes, &bool_val); |
| 306 | assert(ret == 0); |
| 307 | muxer_comp->assume_absolute_clock_classes = (bool) bool_val; |
| 308 | BT_LOGD("Configured muxer component: muxer-comp-addr=%p, " |
| 309 | "assume-absolute-clock-classes=%d", |
| 310 | muxer_comp, muxer_comp->assume_absolute_clock_classes); |
| 311 | goto end; |
| 312 | |
| 313 | error: |
| 314 | ret = -1; |
| 315 | |
| 316 | end: |
| 317 | bt_put(default_params); |
| 318 | bt_put(real_params); |
| 319 | bt_put(assume_absolute_clock_classes); |
| 320 | return ret; |
| 321 | } |
| 322 | |
| 323 | BT_HIDDEN |
| 324 | enum bt_component_status muxer_init( |
| 325 | struct bt_private_component *priv_comp, |
| 326 | struct bt_value *params, void *init_data) |
| 327 | { |
| 328 | int ret; |
| 329 | enum bt_component_status status = BT_COMPONENT_STATUS_OK; |
| 330 | struct muxer_comp *muxer_comp = g_new0(struct muxer_comp, 1); |
| 331 | |
| 332 | BT_LOGD("Initializing muxer component: " |
| 333 | "comp-addr=%p, params-addr=%p", priv_comp, params); |
| 334 | |
| 335 | if (!muxer_comp) { |
| 336 | BT_LOGE_STR("Failed to allocate one muxer component."); |
| 337 | goto error; |
| 338 | } |
| 339 | |
| 340 | ret = configure_muxer_comp(muxer_comp, params); |
| 341 | if (ret) { |
| 342 | BT_LOGE("Cannot configure muxer component: " |
| 343 | "muxer-comp-addr=%p, params-addr=%p", |
| 344 | muxer_comp, params); |
| 345 | goto error; |
| 346 | } |
| 347 | |
| 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."); |
| 351 | goto error; |
| 352 | } |
| 353 | |
| 354 | muxer_comp->priv_comp = priv_comp; |
| 355 | ret = bt_private_component_set_user_data(priv_comp, muxer_comp); |
| 356 | assert(ret == 0); |
| 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", |
| 361 | muxer_comp, |
| 362 | bt_component_status_string(status)); |
| 363 | goto error; |
| 364 | } |
| 365 | |
| 366 | status = create_output_port(priv_comp); |
| 367 | if (status) { |
| 368 | BT_LOGE("Cannot create muxer component's output port: " |
| 369 | "muxer-comp-addr=%p, status=%s", |
| 370 | muxer_comp, |
| 371 | bt_component_status_string(status)); |
| 372 | goto error; |
| 373 | } |
| 374 | |
| 375 | BT_LOGD("Initialized muxer component: " |
| 376 | "comp-addr=%p, params-addr=%p, muxer-comp-addr=%p", |
| 377 | priv_comp, params, muxer_comp); |
| 378 | |
| 379 | goto end; |
| 380 | |
| 381 | error: |
| 382 | destroy_muxer_comp(muxer_comp); |
| 383 | ret = bt_private_component_set_user_data(priv_comp, NULL); |
| 384 | assert(ret == 0); |
| 385 | |
| 386 | if (status == BT_COMPONENT_STATUS_OK) { |
| 387 | status = BT_COMPONENT_STATUS_ERROR; |
| 388 | } |
| 389 | |
| 390 | end: |
| 391 | return status; |
| 392 | } |
| 393 | |
| 394 | BT_HIDDEN |
| 395 | void muxer_finalize(struct bt_private_component *priv_comp) |
| 396 | { |
| 397 | struct muxer_comp *muxer_comp = |
| 398 | bt_private_component_get_user_data(priv_comp); |
| 399 | |
| 400 | BT_LOGD("Finalizing muxer component: comp-addr=%p", |
| 401 | priv_comp); |
| 402 | destroy_muxer_comp(muxer_comp); |
| 403 | } |
| 404 | |
| 405 | static |
| 406 | struct bt_notification_iterator *create_notif_iter_on_input_port( |
| 407 | struct bt_private_port *priv_port, int *ret) |
| 408 | { |
| 409 | struct bt_port *port = bt_port_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; |
| 413 | |
| 414 | assert(ret); |
| 415 | *ret = 0; |
| 416 | assert(port); |
| 417 | assert(bt_port_is_connected(port)); |
| 418 | priv_conn = bt_private_port_get_private_connection(priv_port); |
| 419 | assert(priv_conn); |
| 420 | |
| 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, NULL, ¬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, " |
| 429 | "status=%s", |
| 430 | port, bt_port_get_name(port), priv_conn, |
| 431 | bt_connection_status_string(conn_status)); |
| 432 | *ret = -1; |
| 433 | goto end; |
| 434 | } |
| 435 | |
| 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); |
| 440 | |
| 441 | end: |
| 442 | bt_put(port); |
| 443 | bt_put(priv_conn); |
| 444 | return notif_iter; |
| 445 | } |
| 446 | |
| 447 | static |
| 448 | enum bt_notification_iterator_status muxer_upstream_notif_iter_next( |
| 449 | struct muxer_upstream_notif_iter *muxer_upstream_notif_iter) |
| 450 | { |
| 451 | enum bt_notification_iterator_status status; |
| 452 | |
| 453 | BT_LOGV("Calling upstream notification iterator's \"next\" method: " |
| 454 | "muxer-upstream-notif-iter-wrap-addr=%p, notif-iter-addr=%p", |
| 455 | muxer_upstream_notif_iter, |
| 456 | muxer_upstream_notif_iter->notif_iter); |
| 457 | status = bt_notification_iterator_next( |
| 458 | muxer_upstream_notif_iter->notif_iter); |
| 459 | BT_LOGV("Upstream notification iterator's \"next\" method returned: " |
| 460 | "status=%s", bt_notification_iterator_status_string(status)); |
| 461 | |
| 462 | switch (status) { |
| 463 | case BT_NOTIFICATION_ITERATOR_STATUS_OK: |
| 464 | /* |
| 465 | * Notification iterator's current notification is valid: |
| 466 | * it must be considered for muxing operations. |
| 467 | */ |
| 468 | BT_LOGV_STR("Validated upstream notification iterator wrapper."); |
| 469 | muxer_upstream_notif_iter->is_valid = true; |
| 470 | break; |
| 471 | case BT_NOTIFICATION_ITERATOR_STATUS_AGAIN: |
| 472 | /* |
| 473 | * Notification iterator's current notification is not |
| 474 | * valid anymore. Return |
| 475 | * BT_NOTIFICATION_ITERATOR_STATUS_AGAIN |
| 476 | * immediately. |
| 477 | */ |
| 478 | BT_LOGV_STR("Invalidated upstream notification iterator wrapper because of BT_NOTIFICATION_ITERATOR_STATUS_AGAIN."); |
| 479 | muxer_upstream_notif_iter->is_valid = false; |
| 480 | break; |
| 481 | case BT_NOTIFICATION_ITERATOR_STATUS_END: /* Fall-through. */ |
| 482 | case BT_NOTIFICATION_ITERATOR_STATUS_CANCELED: |
| 483 | /* |
| 484 | * Notification iterator reached the end: release it. It |
| 485 | * won't be considered again to find the youngest |
| 486 | * notification. |
| 487 | */ |
| 488 | BT_LOGV_STR("Invalidated upstream notification iterator wrapper because of BT_NOTIFICATION_ITERATOR_STATUS_END or BT_NOTIFICATION_ITERATOR_STATUS_CANCELED."); |
| 489 | BT_PUT(muxer_upstream_notif_iter->notif_iter); |
| 490 | muxer_upstream_notif_iter->is_valid = false; |
| 491 | status = BT_NOTIFICATION_ITERATOR_STATUS_OK; |
| 492 | break; |
| 493 | default: |
| 494 | /* Error or unsupported status code */ |
| 495 | BT_LOGE("Error or unsupported status code: " |
| 496 | "status-code=%d", status); |
| 497 | status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR; |
| 498 | break; |
| 499 | } |
| 500 | |
| 501 | return status; |
| 502 | } |
| 503 | |
| 504 | static |
| 505 | int muxer_notif_iter_handle_newly_connected_ports( |
| 506 | struct muxer_notif_iter *muxer_notif_iter) |
| 507 | { |
| 508 | int ret = 0; |
| 509 | |
| 510 | BT_LOGV("Handling newly connected ports: " |
| 511 | "muxer-notif-iter-addr=%p", muxer_notif_iter); |
| 512 | |
| 513 | /* |
| 514 | * Here we create one upstream notification iterator for each |
| 515 | * newly connected port. We do not perform an initial "next" on |
| 516 | * those new upstream notification iterators: they are |
| 517 | * invalidated, to be validated later. The list of newly |
| 518 | * connected ports to handle here is updated by |
| 519 | * muxer_port_connected(). |
| 520 | */ |
| 521 | while (true) { |
| 522 | GList *node = muxer_notif_iter->newly_connected_priv_ports; |
| 523 | struct bt_private_port *priv_port; |
| 524 | struct bt_port *port; |
| 525 | struct bt_notification_iterator *upstream_notif_iter = NULL; |
| 526 | struct muxer_upstream_notif_iter *muxer_upstream_notif_iter; |
| 527 | |
| 528 | if (!node) { |
| 529 | break; |
| 530 | } |
| 531 | |
| 532 | priv_port = node->data; |
| 533 | port = bt_port_from_private(priv_port); |
| 534 | assert(port); |
| 535 | |
| 536 | if (!bt_port_is_connected(port)) { |
| 537 | /* |
| 538 | * Looks like this port is not connected |
| 539 | * anymore: we can't create an upstream |
| 540 | * notification iterator on its (non-existing) |
| 541 | * connection in this case. |
| 542 | */ |
| 543 | goto remove_node; |
| 544 | } |
| 545 | |
| 546 | BT_PUT(port); |
| 547 | upstream_notif_iter = create_notif_iter_on_input_port(priv_port, |
| 548 | &ret); |
| 549 | if (ret) { |
| 550 | /* create_notif_iter_on_input_port() logs errors */ |
| 551 | assert(!upstream_notif_iter); |
| 552 | goto error; |
| 553 | } |
| 554 | |
| 555 | muxer_upstream_notif_iter = |
| 556 | muxer_notif_iter_add_upstream_notif_iter( |
| 557 | muxer_notif_iter, upstream_notif_iter, |
| 558 | priv_port); |
| 559 | BT_PUT(upstream_notif_iter); |
| 560 | if (!muxer_upstream_notif_iter) { |
| 561 | /* |
| 562 | * muxer_notif_iter_add_upstream_notif_iter() |
| 563 | * logs errors. |
| 564 | */ |
| 565 | goto error; |
| 566 | } |
| 567 | |
| 568 | remove_node: |
| 569 | bt_put(upstream_notif_iter); |
| 570 | bt_put(port); |
| 571 | muxer_notif_iter->newly_connected_priv_ports = |
| 572 | g_list_delete_link( |
| 573 | muxer_notif_iter->newly_connected_priv_ports, |
| 574 | node); |
| 575 | } |
| 576 | |
| 577 | goto end; |
| 578 | |
| 579 | error: |
| 580 | if (ret >= 0) { |
| 581 | ret = -1; |
| 582 | } |
| 583 | |
| 584 | end: |
| 585 | return ret; |
| 586 | } |
| 587 | |
| 588 | static |
| 589 | int get_notif_ts_ns(struct muxer_comp *muxer_comp, |
| 590 | struct muxer_notif_iter *muxer_notif_iter, |
| 591 | struct bt_notification *notif, int64_t last_returned_ts_ns, |
| 592 | int64_t *ts_ns) |
| 593 | { |
| 594 | struct bt_clock_class_priority_map *cc_prio_map = NULL; |
| 595 | struct bt_clock_class *clock_class = NULL; |
| 596 | struct bt_clock_value *clock_value = NULL; |
| 597 | struct bt_event *event = NULL; |
| 598 | int ret = 0; |
| 599 | const unsigned char *cc_uuid; |
| 600 | const char *cc_name; |
| 601 | |
| 602 | assert(notif); |
| 603 | assert(ts_ns); |
| 604 | |
| 605 | BT_LOGV("Getting notification's timestamp: " |
| 606 | "muxer-notif-iter-addr=%p, notif-addr=%p, " |
| 607 | "last-returned-ts=%" PRId64, |
| 608 | muxer_notif_iter, notif, last_returned_ts_ns); |
| 609 | |
| 610 | switch (bt_notification_get_type(notif)) { |
| 611 | case BT_NOTIFICATION_TYPE_EVENT: |
| 612 | cc_prio_map = |
| 613 | bt_notification_event_get_clock_class_priority_map( |
| 614 | notif); |
| 615 | break; |
| 616 | |
| 617 | case BT_NOTIFICATION_TYPE_INACTIVITY: |
| 618 | cc_prio_map = |
| 619 | bt_notification_inactivity_get_clock_class_priority_map( |
| 620 | notif); |
| 621 | break; |
| 622 | default: |
| 623 | /* All the other notifications have a higher priority */ |
| 624 | BT_LOGV_STR("Notification has no timestamp: using the last returned timestamp."); |
| 625 | *ts_ns = last_returned_ts_ns; |
| 626 | goto end; |
| 627 | } |
| 628 | |
| 629 | if (!cc_prio_map) { |
| 630 | BT_LOGE("Cannot get notification's clock class priority map: " |
| 631 | "notif-addr=%p", notif); |
| 632 | goto error; |
| 633 | } |
| 634 | |
| 635 | /* |
| 636 | * If the clock class priority map is empty, then we consider |
| 637 | * that this notification has no time. In this case it's always |
| 638 | * the youngest. |
| 639 | */ |
| 640 | if (bt_clock_class_priority_map_get_clock_class_count(cc_prio_map) == 0) { |
| 641 | BT_LOGV_STR("Notification's clock class priorty map contains 0 clock classes: " |
| 642 | "using the last returned timestamp."); |
| 643 | *ts_ns = last_returned_ts_ns; |
| 644 | goto end; |
| 645 | } |
| 646 | |
| 647 | clock_class = |
| 648 | bt_clock_class_priority_map_get_highest_priority_clock_class( |
| 649 | cc_prio_map); |
| 650 | if (!clock_class) { |
| 651 | BT_LOGE("Cannot get the clock class with the highest priority from clock class priority map: " |
| 652 | "cc-prio-map-addr=%p", cc_prio_map); |
| 653 | goto error; |
| 654 | } |
| 655 | |
| 656 | cc_uuid = bt_clock_class_get_uuid(clock_class); |
| 657 | cc_name = bt_clock_class_get_name(clock_class); |
| 658 | |
| 659 | if (muxer_notif_iter->clock_class_expectation == |
| 660 | MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_ANY) { |
| 661 | /* |
| 662 | * This is the first clock class that this muxer |
| 663 | * notification iterator encounters. Its properties |
| 664 | * determine what to expect for the whole lifetime of |
| 665 | * the iterator without a true |
| 666 | * `assume-absolute-clock-classes` parameter. |
| 667 | */ |
| 668 | if (bt_clock_class_is_absolute(clock_class)) { |
| 669 | /* Expect absolute clock classes */ |
| 670 | muxer_notif_iter->clock_class_expectation = |
| 671 | MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_ABSOLUTE; |
| 672 | } else { |
| 673 | if (cc_uuid) { |
| 674 | /* |
| 675 | * Expect non-absolute clock classes |
| 676 | * with a specific UUID. |
| 677 | */ |
| 678 | muxer_notif_iter->clock_class_expectation = |
| 679 | MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_SPEC_UUID; |
| 680 | memcpy(muxer_notif_iter->expected_clock_class_uuid, |
| 681 | cc_uuid, BABELTRACE_UUID_LEN); |
| 682 | } else { |
| 683 | /* |
| 684 | * Expect non-absolute clock classes |
| 685 | * with no UUID. |
| 686 | */ |
| 687 | muxer_notif_iter->clock_class_expectation = |
| 688 | MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_NO_UUID; |
| 689 | } |
| 690 | } |
| 691 | } |
| 692 | |
| 693 | if (!muxer_comp->assume_absolute_clock_classes) { |
| 694 | switch (muxer_notif_iter->clock_class_expectation) { |
| 695 | case MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_ABSOLUTE: |
| 696 | if (!bt_clock_class_is_absolute(clock_class)) { |
| 697 | BT_LOGE("Expecting an absolute clock class, " |
| 698 | "but got a non-absolute one: " |
| 699 | "clock-class-addr=%p, clock-class-name=\"%s\"", |
| 700 | clock_class, cc_name); |
| 701 | goto error; |
| 702 | } |
| 703 | break; |
| 704 | case MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_NO_UUID: |
| 705 | if (bt_clock_class_is_absolute(clock_class)) { |
| 706 | BT_LOGE("Expecting a non-absolute clock class with no UUID, " |
| 707 | "but got an absolute one: " |
| 708 | "clock-class-addr=%p, clock-class-name=\"%s\"", |
| 709 | clock_class, cc_name); |
| 710 | goto error; |
| 711 | } |
| 712 | |
| 713 | if (cc_uuid) { |
| 714 | BT_LOGE("Expecting a non-absolute clock class with no UUID, " |
| 715 | "but got one with a UUID: " |
| 716 | "clock-class-addr=%p, clock-class-name=\"%s\", " |
| 717 | "uuid=\"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\"", |
| 718 | clock_class, cc_name, |
| 719 | (unsigned int) cc_uuid[0], |
| 720 | (unsigned int) cc_uuid[1], |
| 721 | (unsigned int) cc_uuid[2], |
| 722 | (unsigned int) cc_uuid[3], |
| 723 | (unsigned int) cc_uuid[4], |
| 724 | (unsigned int) cc_uuid[5], |
| 725 | (unsigned int) cc_uuid[6], |
| 726 | (unsigned int) cc_uuid[7], |
| 727 | (unsigned int) cc_uuid[8], |
| 728 | (unsigned int) cc_uuid[9], |
| 729 | (unsigned int) cc_uuid[10], |
| 730 | (unsigned int) cc_uuid[11], |
| 731 | (unsigned int) cc_uuid[12], |
| 732 | (unsigned int) cc_uuid[13], |
| 733 | (unsigned int) cc_uuid[14], |
| 734 | (unsigned int) cc_uuid[15]); |
| 735 | goto error; |
| 736 | } |
| 737 | break; |
| 738 | case MUXER_NOTIF_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_SPEC_UUID: |
| 739 | if (bt_clock_class_is_absolute(clock_class)) { |
| 740 | BT_LOGE("Expecting a non-absolute clock class with a specific UUID, " |
| 741 | "but got an absolute one: " |
| 742 | "clock-class-addr=%p, clock-class-name=\"%s\"", |
| 743 | clock_class, cc_name); |
| 744 | goto error; |
| 745 | } |
| 746 | |
| 747 | if (!cc_uuid) { |
| 748 | BT_LOGE("Expecting a non-absolute clock class with a specific UUID, " |
| 749 | "but got one with no UUID: " |
| 750 | "clock-class-addr=%p, clock-class-name=\"%s\"", |
| 751 | clock_class, cc_name); |
| 752 | goto error; |
| 753 | } |
| 754 | |
| 755 | if (memcmp(muxer_notif_iter->expected_clock_class_uuid, |
| 756 | cc_uuid, BABELTRACE_UUID_LEN) != 0) { |
| 757 | BT_LOGE("Expecting a non-absolute clock class with a specific UUID, " |
| 758 | "but got one with different UUID: " |
| 759 | "clock-class-addr=%p, clock-class-name=\"%s\", " |
| 760 | "expected-uuid=\"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\", " |
| 761 | "uuid=\"%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x\"", |
| 762 | clock_class, cc_name, |
| 763 | (unsigned int) muxer_notif_iter->expected_clock_class_uuid[0], |
| 764 | (unsigned int) muxer_notif_iter->expected_clock_class_uuid[1], |
| 765 | (unsigned int) muxer_notif_iter->expected_clock_class_uuid[2], |
| 766 | (unsigned int) muxer_notif_iter->expected_clock_class_uuid[3], |
| 767 | (unsigned int) muxer_notif_iter->expected_clock_class_uuid[4], |
| 768 | (unsigned int) muxer_notif_iter->expected_clock_class_uuid[5], |
| 769 | (unsigned int) muxer_notif_iter->expected_clock_class_uuid[6], |
| 770 | (unsigned int) muxer_notif_iter->expected_clock_class_uuid[7], |
| 771 | (unsigned int) muxer_notif_iter->expected_clock_class_uuid[8], |
| 772 | (unsigned int) muxer_notif_iter->expected_clock_class_uuid[9], |
| 773 | (unsigned int) muxer_notif_iter->expected_clock_class_uuid[10], |
| 774 | (unsigned int) muxer_notif_iter->expected_clock_class_uuid[11], |
| 775 | (unsigned int) muxer_notif_iter->expected_clock_class_uuid[12], |
| 776 | (unsigned int) muxer_notif_iter->expected_clock_class_uuid[13], |
| 777 | (unsigned int) muxer_notif_iter->expected_clock_class_uuid[14], |
| 778 | (unsigned int) muxer_notif_iter->expected_clock_class_uuid[15], |
| 779 | (unsigned int) cc_uuid[0], |
| 780 | (unsigned int) cc_uuid[1], |
| 781 | (unsigned int) cc_uuid[2], |
| 782 | (unsigned int) cc_uuid[3], |
| 783 | (unsigned int) cc_uuid[4], |
| 784 | (unsigned int) cc_uuid[5], |
| 785 | (unsigned int) cc_uuid[6], |
| 786 | (unsigned int) cc_uuid[7], |
| 787 | (unsigned int) cc_uuid[8], |
| 788 | (unsigned int) cc_uuid[9], |
| 789 | (unsigned int) cc_uuid[10], |
| 790 | (unsigned int) cc_uuid[11], |
| 791 | (unsigned int) cc_uuid[12], |
| 792 | (unsigned int) cc_uuid[13], |
| 793 | (unsigned int) cc_uuid[14], |
| 794 | (unsigned int) cc_uuid[15]); |
| 795 | goto error; |
| 796 | } |
| 797 | break; |
| 798 | default: |
| 799 | /* Unexpected */ |
| 800 | BT_LOGF("Unexpected clock class expectation: " |
| 801 | "expectation-code=%d", |
| 802 | muxer_notif_iter->clock_class_expectation); |
| 803 | abort(); |
| 804 | } |
| 805 | } |
| 806 | |
| 807 | switch (bt_notification_get_type(notif)) { |
| 808 | case BT_NOTIFICATION_TYPE_EVENT: |
| 809 | event = bt_notification_event_get_event(notif); |
| 810 | assert(event); |
| 811 | clock_value = bt_event_get_clock_value(event, |
| 812 | clock_class); |
| 813 | break; |
| 814 | case BT_NOTIFICATION_TYPE_INACTIVITY: |
| 815 | clock_value = bt_notification_inactivity_get_clock_value( |
| 816 | notif, clock_class); |
| 817 | break; |
| 818 | default: |
| 819 | BT_LOGF("Unexpected notification type at this point: " |
| 820 | "type=%d", bt_notification_get_type(notif)); |
| 821 | abort(); |
| 822 | } |
| 823 | |
| 824 | if (!clock_value) { |
| 825 | BT_LOGE("Cannot get notification's clock value for clock class: " |
| 826 | "clock-class-addr=%p, clock-class-name=\"%s\"", |
| 827 | clock_class, cc_name); |
| 828 | goto error; |
| 829 | } |
| 830 | |
| 831 | ret = bt_clock_value_get_value_ns_from_epoch(clock_value, ts_ns); |
| 832 | if (ret) { |
| 833 | BT_LOGE("Cannot get nanoseconds from Epoch of clock value: " |
| 834 | "clock-value-addr=%p", clock_value); |
| 835 | goto error; |
| 836 | } |
| 837 | |
| 838 | goto end; |
| 839 | |
| 840 | error: |
| 841 | ret = -1; |
| 842 | |
| 843 | end: |
| 844 | if (ret == 0) { |
| 845 | BT_LOGV("Found notification's timestamp: " |
| 846 | "muxer-notif-iter-addr=%p, notif-addr=%p, " |
| 847 | "last-returned-ts=%" PRId64 ", ts=%" PRId64, |
| 848 | muxer_notif_iter, notif, last_returned_ts_ns, |
| 849 | *ts_ns); |
| 850 | } |
| 851 | |
| 852 | bt_put(cc_prio_map); |
| 853 | bt_put(event); |
| 854 | bt_put(clock_class); |
| 855 | bt_put(clock_value); |
| 856 | return ret; |
| 857 | } |
| 858 | |
| 859 | /* |
| 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 |
| 864 | * notification. |
| 865 | * |
| 866 | * This function does NOT: |
| 867 | * |
| 868 | * * Update any upstream notification iterator. |
| 869 | * * Check for newly connected ports. |
| 870 | * * Check the upstream notification iterators to retry. |
| 871 | * |
| 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. |
| 875 | */ |
| 876 | static |
| 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, |
| 882 | int64_t *ts_ns) |
| 883 | { |
| 884 | size_t i; |
| 885 | int ret; |
| 886 | int64_t youngest_ts_ns = INT64_MAX; |
| 887 | enum bt_notification_iterator_status status = |
| 888 | BT_NOTIFICATION_ITERATOR_STATUS_OK; |
| 889 | |
| 890 | assert(muxer_comp); |
| 891 | assert(muxer_notif_iter); |
| 892 | assert(muxer_upstream_notif_iter); |
| 893 | *muxer_upstream_notif_iter = NULL; |
| 894 | |
| 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); |
| 899 | int64_t notif_ts_ns; |
| 900 | |
| 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); |
| 906 | continue; |
| 907 | } |
| 908 | |
| 909 | assert(cur_muxer_upstream_notif_iter->is_valid); |
| 910 | notif = bt_notification_iterator_get_notification( |
| 911 | cur_muxer_upstream_notif_iter->notif_iter); |
| 912 | assert(notif); |
| 913 | ret = get_notif_ts_ns(muxer_comp, muxer_notif_iter, notif, |
| 914 | muxer_notif_iter->last_returned_ts_ns, ¬if_ts_ns); |
| 915 | bt_put(notif); |
| 916 | if (ret) { |
| 917 | /* get_notif_ts_ns() logs errors */ |
| 918 | *muxer_upstream_notif_iter = NULL; |
| 919 | status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR; |
| 920 | goto end; |
| 921 | } |
| 922 | |
| 923 | if (notif_ts_ns <= youngest_ts_ns) { |
| 924 | *muxer_upstream_notif_iter = |
| 925 | cur_muxer_upstream_notif_iter; |
| 926 | youngest_ts_ns = notif_ts_ns; |
| 927 | *ts_ns = youngest_ts_ns; |
| 928 | } |
| 929 | } |
| 930 | |
| 931 | if (!*muxer_upstream_notif_iter) { |
| 932 | status = BT_NOTIFICATION_ITERATOR_STATUS_END; |
| 933 | *ts_ns = INT64_MIN; |
| 934 | } |
| 935 | |
| 936 | end: |
| 937 | return status; |
| 938 | } |
| 939 | |
| 940 | static |
| 941 | enum bt_notification_iterator_status validate_muxer_upstream_notif_iter( |
| 942 | struct muxer_upstream_notif_iter *muxer_upstream_notif_iter) |
| 943 | { |
| 944 | enum bt_notification_iterator_status status = |
| 945 | BT_NOTIFICATION_ITERATOR_STATUS_OK; |
| 946 | |
| 947 | BT_LOGV("Validating muxer's upstream notification iterator wrapper: " |
| 948 | "muxer-upstream-notif-iter-wrap-addr=%p", |
| 949 | muxer_upstream_notif_iter); |
| 950 | |
| 951 | if (muxer_upstream_notif_iter->is_valid || |
| 952 | !muxer_upstream_notif_iter->notif_iter) { |
| 953 | goto end; |
| 954 | } |
| 955 | |
| 956 | /* muxer_upstream_notif_iter_next() logs details/errors */ |
| 957 | status = muxer_upstream_notif_iter_next(muxer_upstream_notif_iter); |
| 958 | |
| 959 | end: |
| 960 | return status; |
| 961 | } |
| 962 | |
| 963 | static |
| 964 | enum bt_notification_iterator_status validate_muxer_upstream_notif_iters( |
| 965 | struct muxer_notif_iter *muxer_notif_iter) |
| 966 | { |
| 967 | enum bt_notification_iterator_status status = |
| 968 | BT_NOTIFICATION_ITERATOR_STATUS_OK; |
| 969 | size_t i; |
| 970 | |
| 971 | BT_LOGV("Validating muxer's upstream notification iterator wrappers: " |
| 972 | "muxer-notif-iter-addr=%p", muxer_notif_iter); |
| 973 | |
| 974 | for (i = 0; i < muxer_notif_iter->muxer_upstream_notif_iters->len; i++) { |
| 975 | struct muxer_upstream_notif_iter *muxer_upstream_notif_iter = |
| 976 | g_ptr_array_index( |
| 977 | muxer_notif_iter->muxer_upstream_notif_iters, |
| 978 | i); |
| 979 | |
| 980 | status = validate_muxer_upstream_notif_iter( |
| 981 | muxer_upstream_notif_iter); |
| 982 | if (status != BT_NOTIFICATION_ITERATOR_STATUS_OK) { |
| 983 | if (status < 0) { |
| 984 | BT_LOGE("Cannot validate muxer's upstream notification iterator wrapper: " |
| 985 | "muxer-notif-iter-addr=%p, " |
| 986 | "muxer-upstream-notif-iter-wrap-addr=%p", |
| 987 | muxer_notif_iter, |
| 988 | muxer_upstream_notif_iter); |
| 989 | } else { |
| 990 | BT_LOGV("Cannot validate muxer's upstream notification iterator wrapper: " |
| 991 | "muxer-notif-iter-addr=%p, " |
| 992 | "muxer-upstream-notif-iter-wrap-addr=%p", |
| 993 | muxer_notif_iter, |
| 994 | muxer_upstream_notif_iter); |
| 995 | } |
| 996 | |
| 997 | goto end; |
| 998 | } |
| 999 | |
| 1000 | /* |
| 1001 | * Remove this muxer upstream notification iterator |
| 1002 | * if it's ended or canceled. |
| 1003 | */ |
| 1004 | if (!muxer_upstream_notif_iter->notif_iter) { |
| 1005 | /* |
| 1006 | * Use g_ptr_array_remove_fast() because the |
| 1007 | * order of those elements is not important. |
| 1008 | */ |
| 1009 | BT_LOGV("Removing muxer's upstream notification iterator wrapper: ended or canceled: " |
| 1010 | "muxer-notif-iter-addr=%p, " |
| 1011 | "muxer-upstream-notif-iter-wrap-addr=%p", |
| 1012 | muxer_notif_iter, muxer_upstream_notif_iter); |
| 1013 | g_ptr_array_remove_index_fast( |
| 1014 | muxer_notif_iter->muxer_upstream_notif_iters, |
| 1015 | i); |
| 1016 | i--; |
| 1017 | } |
| 1018 | } |
| 1019 | |
| 1020 | end: |
| 1021 | return status; |
| 1022 | } |
| 1023 | |
| 1024 | static |
| 1025 | struct bt_notification_iterator_next_method_return muxer_notif_iter_do_next( |
| 1026 | struct muxer_comp *muxer_comp, |
| 1027 | struct muxer_notif_iter *muxer_notif_iter) |
| 1028 | { |
| 1029 | struct muxer_upstream_notif_iter *muxer_upstream_notif_iter = NULL; |
| 1030 | struct bt_notification_iterator_next_method_return next_return = { |
| 1031 | .notification = NULL, |
| 1032 | .status = BT_NOTIFICATION_ITERATOR_STATUS_OK, |
| 1033 | }; |
| 1034 | int64_t next_return_ts; |
| 1035 | |
| 1036 | while (true) { |
| 1037 | int ret = muxer_notif_iter_handle_newly_connected_ports( |
| 1038 | muxer_notif_iter); |
| 1039 | |
| 1040 | if (ret) { |
| 1041 | BT_LOGE("Cannot handle newly connected input ports for muxer's notification iterator: " |
| 1042 | "muxer-comp-addr=%p, muxer-notif-iter-addr=%p, " |
| 1043 | "ret=%d", |
| 1044 | muxer_comp, muxer_notif_iter, ret); |
| 1045 | next_return.status = |
| 1046 | BT_NOTIFICATION_ITERATOR_STATUS_ERROR; |
| 1047 | goto end; |
| 1048 | } |
| 1049 | |
| 1050 | next_return.status = |
| 1051 | validate_muxer_upstream_notif_iters(muxer_notif_iter); |
| 1052 | if (next_return.status != BT_NOTIFICATION_ITERATOR_STATUS_OK) { |
| 1053 | /* validate_muxer_upstream_notif_iters() logs details */ |
| 1054 | goto end; |
| 1055 | } |
| 1056 | |
| 1057 | /* |
| 1058 | * At this point, we know that all the existing upstream |
| 1059 | * notification iterators are valid. However the |
| 1060 | * operations to validate them (during |
| 1061 | * validate_muxer_upstream_notif_iters()) may have |
| 1062 | * connected new ports. If no ports were connected |
| 1063 | * during this operation, exit the loop. |
| 1064 | */ |
| 1065 | if (!muxer_notif_iter->newly_connected_priv_ports) { |
| 1066 | BT_LOGV("Not breaking this loop: muxer's notification iterator still has newly connected input ports to handle: " |
| 1067 | "muxer-comp-addr=%p", muxer_comp); |
| 1068 | break; |
| 1069 | } |
| 1070 | } |
| 1071 | |
| 1072 | assert(!muxer_notif_iter->newly_connected_priv_ports); |
| 1073 | |
| 1074 | /* |
| 1075 | * At this point we know that all the existing upstream |
| 1076 | * notification iterators are valid. We can find the one, |
| 1077 | * amongst those, of which the current notification is the |
| 1078 | * youngest. |
| 1079 | */ |
| 1080 | next_return.status = |
| 1081 | muxer_notif_iter_youngest_upstream_notif_iter(muxer_comp, |
| 1082 | muxer_notif_iter, &muxer_upstream_notif_iter, |
| 1083 | &next_return_ts); |
| 1084 | if (next_return.status < 0 || |
| 1085 | next_return.status == BT_NOTIFICATION_ITERATOR_STATUS_END || |
| 1086 | next_return.status == BT_NOTIFICATION_ITERATOR_STATUS_CANCELED) { |
| 1087 | if (next_return.status < 0) { |
| 1088 | BT_LOGE("Cannot find the youngest upstream notification iterator wrapper: " |
| 1089 | "status=%s", |
| 1090 | bt_notification_iterator_status_string(next_return.status)); |
| 1091 | } else { |
| 1092 | BT_LOGV("Cannot find the youngest upstream notification iterator wrapper: " |
| 1093 | "status=%s", |
| 1094 | bt_notification_iterator_status_string(next_return.status)); |
| 1095 | } |
| 1096 | |
| 1097 | goto end; |
| 1098 | } |
| 1099 | |
| 1100 | if (next_return_ts < muxer_notif_iter->last_returned_ts_ns) { |
| 1101 | BT_LOGE("Youngest upstream notification iterator wrapper's timestamp is less than muxer's notification iterator's last returned timestamp: " |
| 1102 | "muxer-notif-iter-addr=%p, ts=%" PRId64 ", " |
| 1103 | "last-returned-ts=%" PRId64, |
| 1104 | muxer_notif_iter, next_return_ts, |
| 1105 | muxer_notif_iter->last_returned_ts_ns); |
| 1106 | next_return.status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR; |
| 1107 | goto end; |
| 1108 | } |
| 1109 | |
| 1110 | BT_LOGV("Found youngest upstream notification iterator wrapper: " |
| 1111 | "muxer-notif-iter-addr=%p, " |
| 1112 | "muxer-upstream-notif-iter-wrap-addr=%p, " |
| 1113 | "ts=%" PRId64, |
| 1114 | muxer_notif_iter, muxer_upstream_notif_iter, next_return_ts); |
| 1115 | assert(next_return.status == BT_NOTIFICATION_ITERATOR_STATUS_OK); |
| 1116 | assert(muxer_upstream_notif_iter); |
| 1117 | next_return.notification = bt_notification_iterator_get_notification( |
| 1118 | muxer_upstream_notif_iter->notif_iter); |
| 1119 | assert(next_return.notification); |
| 1120 | |
| 1121 | /* |
| 1122 | * We invalidate the upstream notification iterator so that, the |
| 1123 | * next time this function is called, |
| 1124 | * validate_muxer_upstream_notif_iters() will make it valid. |
| 1125 | */ |
| 1126 | muxer_upstream_notif_iter->is_valid = false; |
| 1127 | muxer_notif_iter->last_returned_ts_ns = next_return_ts; |
| 1128 | |
| 1129 | end: |
| 1130 | return next_return; |
| 1131 | } |
| 1132 | |
| 1133 | static |
| 1134 | void destroy_muxer_notif_iter(struct muxer_notif_iter *muxer_notif_iter) |
| 1135 | { |
| 1136 | if (!muxer_notif_iter) { |
| 1137 | return; |
| 1138 | } |
| 1139 | |
| 1140 | BT_LOGD("Destroying muxer component's notification iterator: " |
| 1141 | "muxer-notif-iter-addr=%p", muxer_notif_iter); |
| 1142 | |
| 1143 | if (muxer_notif_iter->muxer_upstream_notif_iters) { |
| 1144 | BT_LOGD_STR("Destroying muxer's upstream notification iterator wrappers."); |
| 1145 | g_ptr_array_free( |
| 1146 | muxer_notif_iter->muxer_upstream_notif_iters, TRUE); |
| 1147 | } |
| 1148 | |
| 1149 | g_list_free(muxer_notif_iter->newly_connected_priv_ports); |
| 1150 | g_free(muxer_notif_iter); |
| 1151 | } |
| 1152 | |
| 1153 | static |
| 1154 | int muxer_notif_iter_init_newly_connected_ports(struct muxer_comp *muxer_comp, |
| 1155 | struct muxer_notif_iter *muxer_notif_iter) |
| 1156 | { |
| 1157 | struct bt_component *comp; |
| 1158 | int64_t count; |
| 1159 | int64_t i; |
| 1160 | int ret = 0; |
| 1161 | |
| 1162 | /* |
| 1163 | * Add the connected input ports to this muxer notification |
| 1164 | * iterator's list of newly connected ports. They will be |
| 1165 | * handled by muxer_notif_iter_handle_newly_connected_ports(). |
| 1166 | */ |
| 1167 | comp = bt_component_from_private(muxer_comp->priv_comp); |
| 1168 | assert(comp); |
| 1169 | count = bt_component_filter_get_input_port_count(comp); |
| 1170 | if (count < 0) { |
| 1171 | BT_LOGD("No input port to initialize for muxer component's notification iterator: " |
| 1172 | "muxer-comp-addr=%p, muxer-notif-iter-addr=%p", |
| 1173 | muxer_comp, muxer_notif_iter); |
| 1174 | goto end; |
| 1175 | } |
| 1176 | |
| 1177 | for (i = 0; i < count; i++) { |
| 1178 | struct bt_private_port *priv_port = |
| 1179 | bt_private_component_filter_get_input_private_port_by_index( |
| 1180 | muxer_comp->priv_comp, i); |
| 1181 | struct bt_port *port; |
| 1182 | |
| 1183 | assert(priv_port); |
| 1184 | port = bt_port_from_private(priv_port); |
| 1185 | assert(port); |
| 1186 | |
| 1187 | if (!bt_port_is_connected(port)) { |
| 1188 | BT_LOGD("Skipping input port: not connected: " |
| 1189 | "muxer-comp-addr=%p, port-addr=%p, port-name\"%s\"", |
| 1190 | muxer_comp, port, bt_port_get_name(port)); |
| 1191 | bt_put(priv_port); |
| 1192 | bt_put(port); |
| 1193 | continue; |
| 1194 | } |
| 1195 | |
| 1196 | bt_put(port); |
| 1197 | bt_put(priv_port); |
| 1198 | muxer_notif_iter->newly_connected_priv_ports = |
| 1199 | g_list_append( |
| 1200 | muxer_notif_iter->newly_connected_priv_ports, |
| 1201 | priv_port); |
| 1202 | if (!muxer_notif_iter->newly_connected_priv_ports) { |
| 1203 | BT_LOGE("Cannot append port to muxer's notification iterator list of newly connected input ports: " |
| 1204 | "port-addr=%p, port-name=\"%s\", " |
| 1205 | "muxer-notif-iter-addr=%p", port, |
| 1206 | bt_port_get_name(port), muxer_notif_iter); |
| 1207 | ret = -1; |
| 1208 | goto end; |
| 1209 | } |
| 1210 | |
| 1211 | BT_LOGD("Appended port to muxer's notification iterator list of newly connected input ports: " |
| 1212 | "port-addr=%p, port-name=\"%s\", " |
| 1213 | "muxer-notif-iter-addr=%p", port, |
| 1214 | bt_port_get_name(port), muxer_notif_iter); |
| 1215 | } |
| 1216 | |
| 1217 | end: |
| 1218 | bt_put(comp); |
| 1219 | return ret; |
| 1220 | } |
| 1221 | |
| 1222 | BT_HIDDEN |
| 1223 | enum bt_notification_iterator_status muxer_notif_iter_init( |
| 1224 | struct bt_private_connection_private_notification_iterator *priv_notif_iter, |
| 1225 | struct bt_private_port *output_priv_port) |
| 1226 | { |
| 1227 | struct muxer_comp *muxer_comp = NULL; |
| 1228 | struct muxer_notif_iter *muxer_notif_iter = NULL; |
| 1229 | struct bt_private_component *priv_comp = NULL; |
| 1230 | enum bt_notification_iterator_status status = |
| 1231 | BT_NOTIFICATION_ITERATOR_STATUS_OK; |
| 1232 | int ret; |
| 1233 | |
| 1234 | priv_comp = bt_private_connection_private_notification_iterator_get_private_component( |
| 1235 | priv_notif_iter); |
| 1236 | assert(priv_comp); |
| 1237 | muxer_comp = bt_private_component_get_user_data(priv_comp); |
| 1238 | assert(muxer_comp); |
| 1239 | BT_LOGD("Initializing muxer component's notification iterator: " |
| 1240 | "comp-addr=%p, muxer-comp-addr=%p, notif-iter-addr=%p", |
| 1241 | priv_comp, muxer_comp, priv_notif_iter); |
| 1242 | |
| 1243 | if (muxer_comp->initializing_muxer_notif_iter) { |
| 1244 | /* |
| 1245 | * Weird, unhandled situation detected: downstream |
| 1246 | * creates a muxer notification iterator while creating |
| 1247 | * another muxer notification iterator (same component). |
| 1248 | */ |
| 1249 | BT_LOGE("Recursive initialization of muxer component's notification iterator: " |
| 1250 | "comp-addr=%p, muxer-comp-addr=%p, notif-iter-addr=%p", |
| 1251 | priv_comp, muxer_comp, priv_notif_iter); |
| 1252 | goto error; |
| 1253 | } |
| 1254 | |
| 1255 | muxer_comp->initializing_muxer_notif_iter = true; |
| 1256 | muxer_notif_iter = g_new0(struct muxer_notif_iter, 1); |
| 1257 | if (!muxer_notif_iter) { |
| 1258 | BT_LOGE_STR("Failed to allocate one muxer component's notification iterator."); |
| 1259 | goto error; |
| 1260 | } |
| 1261 | |
| 1262 | muxer_notif_iter->last_returned_ts_ns = INT64_MIN; |
| 1263 | muxer_notif_iter->muxer_upstream_notif_iters = |
| 1264 | g_ptr_array_new_with_free_func( |
| 1265 | (GDestroyNotify) destroy_muxer_upstream_notif_iter); |
| 1266 | if (!muxer_notif_iter->muxer_upstream_notif_iters) { |
| 1267 | BT_LOGE_STR("Failed to allocate a GPtrArray."); |
| 1268 | goto error; |
| 1269 | } |
| 1270 | |
| 1271 | /* |
| 1272 | * Add the muxer notification iterator to the component's array |
| 1273 | * of muxer notification iterators here because |
| 1274 | * muxer_notif_iter_init_newly_connected_ports() can cause |
| 1275 | * muxer_port_connected() to be called, which adds the newly |
| 1276 | * connected port to each muxer notification iterator's list of |
| 1277 | * newly connected ports. |
| 1278 | */ |
| 1279 | g_ptr_array_add(muxer_comp->muxer_notif_iters, muxer_notif_iter); |
| 1280 | ret = muxer_notif_iter_init_newly_connected_ports(muxer_comp, |
| 1281 | muxer_notif_iter); |
| 1282 | if (ret) { |
| 1283 | BT_LOGE("Cannot initialize newly connected input ports for muxer component's notification iterator: " |
| 1284 | "comp-addr=%p, muxer-comp-addr=%p, " |
| 1285 | "muxer-notif-iter-addr=%p, notif-iter-addr=%p, ret=%d", |
| 1286 | priv_comp, muxer_comp, muxer_notif_iter, |
| 1287 | priv_notif_iter, ret); |
| 1288 | goto error; |
| 1289 | } |
| 1290 | |
| 1291 | ret = bt_private_connection_private_notification_iterator_set_user_data(priv_notif_iter, |
| 1292 | muxer_notif_iter); |
| 1293 | assert(ret == 0); |
| 1294 | BT_LOGD("Initialized muxer component's notification iterator: " |
| 1295 | "comp-addr=%p, muxer-comp-addr=%p, muxer-notif-iter-addr=%p, " |
| 1296 | "notif-iter-addr=%p", |
| 1297 | priv_comp, muxer_comp, muxer_notif_iter, priv_notif_iter); |
| 1298 | goto end; |
| 1299 | |
| 1300 | error: |
| 1301 | if (g_ptr_array_index(muxer_comp->muxer_notif_iters, |
| 1302 | muxer_comp->muxer_notif_iters->len - 1) == muxer_notif_iter) { |
| 1303 | g_ptr_array_remove_index(muxer_comp->muxer_notif_iters, |
| 1304 | muxer_comp->muxer_notif_iters->len - 1); |
| 1305 | } |
| 1306 | |
| 1307 | destroy_muxer_notif_iter(muxer_notif_iter); |
| 1308 | ret = bt_private_connection_private_notification_iterator_set_user_data(priv_notif_iter, |
| 1309 | NULL); |
| 1310 | assert(ret == 0); |
| 1311 | status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR; |
| 1312 | |
| 1313 | end: |
| 1314 | muxer_comp->initializing_muxer_notif_iter = false; |
| 1315 | bt_put(priv_comp); |
| 1316 | return status; |
| 1317 | } |
| 1318 | |
| 1319 | BT_HIDDEN |
| 1320 | void muxer_notif_iter_finalize( |
| 1321 | struct bt_private_connection_private_notification_iterator *priv_notif_iter) |
| 1322 | { |
| 1323 | struct muxer_notif_iter *muxer_notif_iter = |
| 1324 | bt_private_connection_private_notification_iterator_get_user_data(priv_notif_iter); |
| 1325 | struct bt_private_component *priv_comp = NULL; |
| 1326 | struct muxer_comp *muxer_comp = NULL; |
| 1327 | |
| 1328 | priv_comp = bt_private_connection_private_notification_iterator_get_private_component( |
| 1329 | priv_notif_iter); |
| 1330 | assert(priv_comp); |
| 1331 | muxer_comp = bt_private_component_get_user_data(priv_comp); |
| 1332 | BT_LOGD("Finalizing muxer component's notification iterator: " |
| 1333 | "comp-addr=%p, muxer-comp-addr=%p, muxer-notif-iter-addr=%p, " |
| 1334 | "notif-iter-addr=%p", |
| 1335 | priv_comp, muxer_comp, muxer_notif_iter, priv_notif_iter); |
| 1336 | |
| 1337 | if (muxer_comp) { |
| 1338 | (void) g_ptr_array_remove_fast(muxer_comp->muxer_notif_iters, |
| 1339 | muxer_notif_iter); |
| 1340 | destroy_muxer_notif_iter(muxer_notif_iter); |
| 1341 | } |
| 1342 | |
| 1343 | bt_put(priv_comp); |
| 1344 | } |
| 1345 | |
| 1346 | BT_HIDDEN |
| 1347 | struct bt_notification_iterator_next_method_return muxer_notif_iter_next( |
| 1348 | struct bt_private_connection_private_notification_iterator *priv_notif_iter) |
| 1349 | { |
| 1350 | struct bt_notification_iterator_next_method_return next_ret; |
| 1351 | struct muxer_notif_iter *muxer_notif_iter = |
| 1352 | bt_private_connection_private_notification_iterator_get_user_data(priv_notif_iter); |
| 1353 | struct bt_private_component *priv_comp = NULL; |
| 1354 | struct muxer_comp *muxer_comp = NULL; |
| 1355 | |
| 1356 | assert(muxer_notif_iter); |
| 1357 | priv_comp = bt_private_connection_private_notification_iterator_get_private_component( |
| 1358 | priv_notif_iter); |
| 1359 | assert(priv_comp); |
| 1360 | muxer_comp = bt_private_component_get_user_data(priv_comp); |
| 1361 | assert(muxer_comp); |
| 1362 | |
| 1363 | BT_LOGV("Muxer component's notification iterator's \"next\" method called: " |
| 1364 | "comp-addr=%p, muxer-comp-addr=%p, muxer-notif-iter-addr=%p, " |
| 1365 | "notif-iter-addr=%p", |
| 1366 | priv_comp, muxer_comp, muxer_notif_iter, priv_notif_iter); |
| 1367 | |
| 1368 | /* Are we in an error state set elsewhere? */ |
| 1369 | if (unlikely(muxer_comp->error)) { |
| 1370 | BT_LOGE("Muxer component is already in an error state: returning BT_NOTIFICATION_ITERATOR_STATUS_ERROR: " |
| 1371 | "comp-addr=%p, muxer-comp-addr=%p, muxer-notif-iter-addr=%p, " |
| 1372 | "notif-iter-addr=%p", |
| 1373 | priv_comp, muxer_comp, muxer_notif_iter, priv_notif_iter); |
| 1374 | next_ret.notification = NULL; |
| 1375 | next_ret.status = BT_NOTIFICATION_ITERATOR_STATUS_ERROR; |
| 1376 | goto end; |
| 1377 | } |
| 1378 | |
| 1379 | next_ret = muxer_notif_iter_do_next(muxer_comp, muxer_notif_iter); |
| 1380 | if (next_ret.status < 0) { |
| 1381 | BT_LOGE("Cannot get next notification: " |
| 1382 | "comp-addr=%p, muxer-comp-addr=%p, muxer-notif-iter-addr=%p, " |
| 1383 | "notif-iter-addr=%p, status=%s", |
| 1384 | priv_comp, muxer_comp, muxer_notif_iter, priv_notif_iter, |
| 1385 | bt_notification_iterator_status_string(next_ret.status)); |
| 1386 | } else { |
| 1387 | BT_LOGV("Returning from muxer component's notification iterator's \"next\" method: " |
| 1388 | "status=%s, notif-addr=%p", |
| 1389 | bt_notification_iterator_status_string(next_ret.status), |
| 1390 | next_ret.notification); |
| 1391 | } |
| 1392 | |
| 1393 | end: |
| 1394 | bt_put(priv_comp); |
| 1395 | return next_ret; |
| 1396 | } |
| 1397 | |
| 1398 | BT_HIDDEN |
| 1399 | void muxer_port_connected( |
| 1400 | struct bt_private_component *priv_comp, |
| 1401 | struct bt_private_port *self_private_port, |
| 1402 | struct bt_port *other_port) |
| 1403 | { |
| 1404 | struct bt_port *self_port = |
| 1405 | bt_port_from_private(self_private_port); |
| 1406 | struct muxer_comp *muxer_comp = |
| 1407 | bt_private_component_get_user_data(priv_comp); |
| 1408 | size_t i; |
| 1409 | int ret; |
| 1410 | |
| 1411 | assert(self_port); |
| 1412 | assert(muxer_comp); |
| 1413 | BT_LOGD("Port connected: " |
| 1414 | "comp-addr=%p, muxer-comp-addr=%p, " |
| 1415 | "port-addr=%p, port-name=\"%s\", " |
| 1416 | "other-port-addr=%p, other-port-name=\"%s\"", |
| 1417 | priv_comp, muxer_comp, self_port, bt_port_get_name(self_port), |
| 1418 | other_port, bt_port_get_name(other_port)); |
| 1419 | |
| 1420 | if (bt_port_get_type(self_port) == BT_PORT_TYPE_OUTPUT) { |
| 1421 | goto end; |
| 1422 | } |
| 1423 | |
| 1424 | for (i = 0; i < muxer_comp->muxer_notif_iters->len; i++) { |
| 1425 | struct muxer_notif_iter *muxer_notif_iter = |
| 1426 | g_ptr_array_index(muxer_comp->muxer_notif_iters, i); |
| 1427 | |
| 1428 | /* |
| 1429 | * Add this port to the list of newly connected ports |
| 1430 | * for this muxer notification iterator. We append at |
| 1431 | * the end of this list while |
| 1432 | * muxer_notif_iter_handle_newly_connected_ports() |
| 1433 | * removes the nodes from the beginning. |
| 1434 | */ |
| 1435 | muxer_notif_iter->newly_connected_priv_ports = |
| 1436 | g_list_append( |
| 1437 | muxer_notif_iter->newly_connected_priv_ports, |
| 1438 | self_private_port); |
| 1439 | if (!muxer_notif_iter->newly_connected_priv_ports) { |
| 1440 | BT_LOGE("Cannot append port to muxer's notification iterator list of newly connected input ports: " |
| 1441 | "port-addr=%p, port-name=\"%s\", " |
| 1442 | "muxer-notif-iter-addr=%p", self_port, |
| 1443 | bt_port_get_name(self_port), muxer_notif_iter); |
| 1444 | muxer_comp->error = true; |
| 1445 | goto end; |
| 1446 | } |
| 1447 | |
| 1448 | BT_LOGD("Appended port to muxer's notification iterator list of newly connected input ports: " |
| 1449 | "port-addr=%p, port-name=\"%s\", " |
| 1450 | "muxer-notif-iter-addr=%p", self_port, |
| 1451 | bt_port_get_name(self_port), muxer_notif_iter); |
| 1452 | } |
| 1453 | |
| 1454 | /* One less available input port */ |
| 1455 | muxer_comp->available_input_ports--; |
| 1456 | ret = ensure_available_input_port(priv_comp); |
| 1457 | if (ret) { |
| 1458 | /* |
| 1459 | * Only way to report an error later since this |
| 1460 | * method does not return anything. |
| 1461 | */ |
| 1462 | BT_LOGE("Cannot ensure that at least one muxer component's input port is available: " |
| 1463 | "muxer-comp-addr=%p, status=%s", |
| 1464 | muxer_comp, bt_component_status_string(ret)); |
| 1465 | muxer_comp->error = true; |
| 1466 | goto end; |
| 1467 | } |
| 1468 | |
| 1469 | end: |
| 1470 | bt_put(self_port); |
| 1471 | } |
| 1472 | |
| 1473 | BT_HIDDEN |
| 1474 | void muxer_port_disconnected(struct bt_private_component *priv_comp, |
| 1475 | struct bt_private_port *priv_port) |
| 1476 | { |
| 1477 | struct bt_port *port = bt_port_from_private(priv_port); |
| 1478 | struct muxer_comp *muxer_comp = |
| 1479 | bt_private_component_get_user_data(priv_comp); |
| 1480 | |
| 1481 | assert(port); |
| 1482 | assert(muxer_comp); |
| 1483 | BT_LOGD("Port disconnected: " |
| 1484 | "comp-addr=%p, muxer-comp-addr=%p, port-addr=%p, " |
| 1485 | "port-name=\"%s\"", priv_comp, muxer_comp, |
| 1486 | port, bt_port_get_name(port)); |
| 1487 | |
| 1488 | /* |
| 1489 | * There's nothing special to do when a port is disconnected |
| 1490 | * because this component deals with upstream notification |
| 1491 | * iterators which were already created thanks to connected |
| 1492 | * ports. The fact that the port is disconnected does not cancel |
| 1493 | * the upstream notification iterators created using its |
| 1494 | * connection: they still exist, even if the connection is dead. |
| 1495 | * The only way to remove an upstream notification iterator is |
| 1496 | * for its "next" operation to return |
| 1497 | * BT_NOTIFICATION_ITERATOR_STATUS_END. |
| 1498 | */ |
| 1499 | if (bt_port_get_type(port) == BT_PORT_TYPE_INPUT) { |
| 1500 | /* One more available input port */ |
| 1501 | muxer_comp->available_input_ports++; |
| 1502 | BT_LOGD("Leaving disconnected input port available for future connections: " |
| 1503 | "comp-addr=%p, muxer-comp-addr=%p, port-addr=%p, " |
| 1504 | "port-name=\"%s\", avail-input-port-count=%zu", |
| 1505 | priv_comp, muxer_comp, port, bt_port_get_name(port), |
| 1506 | muxer_comp->available_input_ports); |
| 1507 | } |
| 1508 | |
| 1509 | bt_put(port); |
| 1510 | } |