| 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_COMP_LOG_SELF_COMP (muxer_comp->self_comp) |
| 24 | #define BT_LOG_OUTPUT_LEVEL (muxer_comp->log_level) |
| 25 | #define BT_LOG_TAG "PLUGIN/FLT.UTILS.MUXER" |
| 26 | #include "logging/comp-logging.h" |
| 27 | |
| 28 | #include "common/macros.h" |
| 29 | #include "common/uuid.h" |
| 30 | #include <babeltrace2/babeltrace.h> |
| 31 | #include <glib.h> |
| 32 | #include <stdbool.h> |
| 33 | #include <inttypes.h> |
| 34 | #include "common/assert.h" |
| 35 | #include "common/common.h" |
| 36 | #include <stdlib.h> |
| 37 | #include <string.h> |
| 38 | |
| 39 | #include "plugins/common/muxing/muxing.h" |
| 40 | |
| 41 | #include "muxer.h" |
| 42 | |
| 43 | #define ASSUME_ABSOLUTE_CLOCK_CLASSES_PARAM_NAME "assume-absolute-clock-classes" |
| 44 | |
| 45 | struct muxer_comp { |
| 46 | /* Weak refs */ |
| 47 | bt_self_component_filter *self_comp_flt; |
| 48 | bt_self_component *self_comp; |
| 49 | |
| 50 | unsigned int next_port_num; |
| 51 | size_t available_input_ports; |
| 52 | bool initializing_muxer_msg_iter; |
| 53 | bool assume_absolute_clock_classes; |
| 54 | bt_logging_level log_level; |
| 55 | }; |
| 56 | |
| 57 | struct muxer_upstream_msg_iter { |
| 58 | struct muxer_comp *muxer_comp; |
| 59 | |
| 60 | /* Owned by this, NULL if ended */ |
| 61 | bt_self_component_port_input_message_iterator *msg_iter; |
| 62 | |
| 63 | /* Contains `const bt_message *`, owned by this */ |
| 64 | GQueue *msgs; |
| 65 | }; |
| 66 | |
| 67 | enum muxer_msg_iter_clock_class_expectation { |
| 68 | MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_ANY = 0, |
| 69 | MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_NONE, |
| 70 | MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_ABSOLUTE, |
| 71 | MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_SPEC_UUID, |
| 72 | MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_NO_UUID, |
| 73 | }; |
| 74 | |
| 75 | struct muxer_msg_iter { |
| 76 | struct muxer_comp *muxer_comp; |
| 77 | |
| 78 | /* Weak */ |
| 79 | bt_self_message_iterator *self_msg_iter; |
| 80 | |
| 81 | /* |
| 82 | * Array of struct muxer_upstream_msg_iter * (owned by this). |
| 83 | * |
| 84 | * NOTE: This array is searched in linearly to find the youngest |
| 85 | * current message. Keep this until benchmarks confirm that |
| 86 | * another data structure is faster than this for our typical |
| 87 | * use cases. |
| 88 | */ |
| 89 | GPtrArray *active_muxer_upstream_msg_iters; |
| 90 | |
| 91 | /* |
| 92 | * Array of struct muxer_upstream_msg_iter * (owned by this). |
| 93 | * |
| 94 | * We move ended message iterators from |
| 95 | * `active_muxer_upstream_msg_iters` to this array so as to be |
| 96 | * able to restore them when seeking. |
| 97 | */ |
| 98 | GPtrArray *ended_muxer_upstream_msg_iters; |
| 99 | |
| 100 | /* Last time returned in a message */ |
| 101 | int64_t last_returned_ts_ns; |
| 102 | |
| 103 | /* Clock class expectation state */ |
| 104 | enum muxer_msg_iter_clock_class_expectation clock_class_expectation; |
| 105 | |
| 106 | /* |
| 107 | * Expected clock class UUID, only valid when |
| 108 | * clock_class_expectation is |
| 109 | * MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_SPEC_UUID. |
| 110 | */ |
| 111 | bt_uuid_t expected_clock_class_uuid; |
| 112 | }; |
| 113 | |
| 114 | static |
| 115 | void empty_message_queue(struct muxer_upstream_msg_iter *upstream_msg_iter) |
| 116 | { |
| 117 | const bt_message *msg; |
| 118 | |
| 119 | while ((msg = g_queue_pop_head(upstream_msg_iter->msgs))) { |
| 120 | bt_message_put_ref(msg); |
| 121 | } |
| 122 | } |
| 123 | |
| 124 | static |
| 125 | void destroy_muxer_upstream_msg_iter( |
| 126 | struct muxer_upstream_msg_iter *muxer_upstream_msg_iter) |
| 127 | { |
| 128 | struct muxer_comp *muxer_comp; |
| 129 | |
| 130 | if (!muxer_upstream_msg_iter) { |
| 131 | return; |
| 132 | } |
| 133 | |
| 134 | muxer_comp = muxer_upstream_msg_iter->muxer_comp; |
| 135 | BT_COMP_LOGD("Destroying muxer's upstream message iterator wrapper: " |
| 136 | "addr=%p, msg-iter-addr=%p, queue-len=%u", |
| 137 | muxer_upstream_msg_iter, |
| 138 | muxer_upstream_msg_iter->msg_iter, |
| 139 | muxer_upstream_msg_iter->msgs->length); |
| 140 | bt_self_component_port_input_message_iterator_put_ref( |
| 141 | muxer_upstream_msg_iter->msg_iter); |
| 142 | |
| 143 | if (muxer_upstream_msg_iter->msgs) { |
| 144 | empty_message_queue(muxer_upstream_msg_iter); |
| 145 | g_queue_free(muxer_upstream_msg_iter->msgs); |
| 146 | } |
| 147 | |
| 148 | g_free(muxer_upstream_msg_iter); |
| 149 | } |
| 150 | |
| 151 | static |
| 152 | int muxer_msg_iter_add_upstream_msg_iter(struct muxer_msg_iter *muxer_msg_iter, |
| 153 | bt_self_component_port_input_message_iterator *self_msg_iter) |
| 154 | { |
| 155 | int ret = 0; |
| 156 | struct muxer_upstream_msg_iter *muxer_upstream_msg_iter = |
| 157 | g_new0(struct muxer_upstream_msg_iter, 1); |
| 158 | struct muxer_comp *muxer_comp = muxer_msg_iter->muxer_comp; |
| 159 | |
| 160 | if (!muxer_upstream_msg_iter) { |
| 161 | BT_COMP_LOGE_STR("Failed to allocate one muxer's upstream message iterator wrapper."); |
| 162 | goto error; |
| 163 | } |
| 164 | |
| 165 | muxer_upstream_msg_iter->muxer_comp = muxer_comp; |
| 166 | muxer_upstream_msg_iter->msg_iter = self_msg_iter; |
| 167 | bt_self_component_port_input_message_iterator_get_ref(muxer_upstream_msg_iter->msg_iter); |
| 168 | muxer_upstream_msg_iter->msgs = g_queue_new(); |
| 169 | if (!muxer_upstream_msg_iter->msgs) { |
| 170 | BT_COMP_LOGE_STR("Failed to allocate a GQueue."); |
| 171 | goto error; |
| 172 | } |
| 173 | |
| 174 | g_ptr_array_add(muxer_msg_iter->active_muxer_upstream_msg_iters, |
| 175 | muxer_upstream_msg_iter); |
| 176 | BT_COMP_LOGD("Added muxer's upstream message iterator wrapper: " |
| 177 | "addr=%p, muxer-msg-iter-addr=%p, msg-iter-addr=%p", |
| 178 | muxer_upstream_msg_iter, muxer_msg_iter, |
| 179 | self_msg_iter); |
| 180 | |
| 181 | goto end; |
| 182 | |
| 183 | error: |
| 184 | g_free(muxer_upstream_msg_iter); |
| 185 | ret = -1; |
| 186 | |
| 187 | end: |
| 188 | return ret; |
| 189 | } |
| 190 | |
| 191 | static |
| 192 | bt_self_component_add_port_status add_available_input_port( |
| 193 | bt_self_component_filter *self_comp) |
| 194 | { |
| 195 | struct muxer_comp *muxer_comp = bt_self_component_get_data( |
| 196 | bt_self_component_filter_as_self_component(self_comp)); |
| 197 | bt_self_component_add_port_status status = |
| 198 | BT_SELF_COMPONENT_ADD_PORT_STATUS_OK; |
| 199 | GString *port_name = NULL; |
| 200 | |
| 201 | BT_ASSERT(muxer_comp); |
| 202 | port_name = g_string_new("in"); |
| 203 | if (!port_name) { |
| 204 | BT_COMP_LOGE_STR("Failed to allocate a GString."); |
| 205 | status = BT_SELF_COMPONENT_ADD_PORT_STATUS_MEMORY_ERROR; |
| 206 | goto end; |
| 207 | } |
| 208 | |
| 209 | g_string_append_printf(port_name, "%u", muxer_comp->next_port_num); |
| 210 | status = bt_self_component_filter_add_input_port( |
| 211 | self_comp, port_name->str, NULL, NULL); |
| 212 | if (status != BT_SELF_COMPONENT_ADD_PORT_STATUS_OK) { |
| 213 | BT_COMP_LOGE("Cannot add input port to muxer component: " |
| 214 | "port-name=\"%s\", comp-addr=%p, status=%s", |
| 215 | port_name->str, self_comp, |
| 216 | bt_common_func_status_string(status)); |
| 217 | goto end; |
| 218 | } |
| 219 | |
| 220 | muxer_comp->available_input_ports++; |
| 221 | muxer_comp->next_port_num++; |
| 222 | BT_COMP_LOGI("Added one input port to muxer component: " |
| 223 | "port-name=\"%s\", comp-addr=%p", |
| 224 | port_name->str, self_comp); |
| 225 | |
| 226 | end: |
| 227 | if (port_name) { |
| 228 | g_string_free(port_name, TRUE); |
| 229 | } |
| 230 | |
| 231 | return status; |
| 232 | } |
| 233 | |
| 234 | static |
| 235 | bt_self_component_add_port_status create_output_port( |
| 236 | bt_self_component_filter *self_comp) |
| 237 | { |
| 238 | return bt_self_component_filter_add_output_port( |
| 239 | self_comp, "out", NULL, NULL); |
| 240 | } |
| 241 | |
| 242 | static |
| 243 | void destroy_muxer_comp(struct muxer_comp *muxer_comp) |
| 244 | { |
| 245 | if (!muxer_comp) { |
| 246 | return; |
| 247 | } |
| 248 | |
| 249 | g_free(muxer_comp); |
| 250 | } |
| 251 | |
| 252 | static |
| 253 | bt_value *get_default_params(struct muxer_comp *muxer_comp) |
| 254 | { |
| 255 | bt_value *params; |
| 256 | int ret; |
| 257 | |
| 258 | params = bt_value_map_create(); |
| 259 | if (!params) { |
| 260 | BT_COMP_LOGE_STR("Cannot create a map value object."); |
| 261 | goto error; |
| 262 | } |
| 263 | |
| 264 | ret = bt_value_map_insert_bool_entry(params, |
| 265 | ASSUME_ABSOLUTE_CLOCK_CLASSES_PARAM_NAME, false); |
| 266 | if (ret) { |
| 267 | BT_COMP_LOGE_STR("Cannot add boolean value to map value object."); |
| 268 | goto error; |
| 269 | } |
| 270 | |
| 271 | goto end; |
| 272 | |
| 273 | error: |
| 274 | BT_VALUE_PUT_REF_AND_RESET(params); |
| 275 | |
| 276 | end: |
| 277 | return params; |
| 278 | } |
| 279 | |
| 280 | static |
| 281 | int configure_muxer_comp(struct muxer_comp *muxer_comp, |
| 282 | const bt_value *params) |
| 283 | { |
| 284 | bt_value *default_params = NULL; |
| 285 | bt_value *real_params = NULL; |
| 286 | const bt_value *assume_absolute_clock_classes = NULL; |
| 287 | int ret = 0; |
| 288 | bt_bool bool_val; |
| 289 | |
| 290 | default_params = get_default_params(muxer_comp); |
| 291 | if (!default_params) { |
| 292 | BT_COMP_LOGE("Cannot get default parameters: " |
| 293 | "muxer-comp-addr=%p", muxer_comp); |
| 294 | goto error; |
| 295 | } |
| 296 | |
| 297 | ret = bt_value_map_extend(default_params, params, &real_params); |
| 298 | if (ret) { |
| 299 | BT_COMP_LOGE("Cannot extend default parameters map value: " |
| 300 | "muxer-comp-addr=%p, def-params-addr=%p, " |
| 301 | "params-addr=%p", muxer_comp, default_params, |
| 302 | params); |
| 303 | goto error; |
| 304 | } |
| 305 | |
| 306 | assume_absolute_clock_classes = bt_value_map_borrow_entry_value(real_params, |
| 307 | ASSUME_ABSOLUTE_CLOCK_CLASSES_PARAM_NAME); |
| 308 | if (assume_absolute_clock_classes && |
| 309 | !bt_value_is_bool(assume_absolute_clock_classes)) { |
| 310 | BT_COMP_LOGE("Expecting a boolean value for the `%s` parameter: " |
| 311 | "muxer-comp-addr=%p, value-type=%s", |
| 312 | ASSUME_ABSOLUTE_CLOCK_CLASSES_PARAM_NAME, muxer_comp, |
| 313 | bt_common_value_type_string( |
| 314 | bt_value_get_type(assume_absolute_clock_classes))); |
| 315 | goto error; |
| 316 | } |
| 317 | |
| 318 | bool_val = bt_value_bool_get(assume_absolute_clock_classes); |
| 319 | muxer_comp->assume_absolute_clock_classes = (bool) bool_val; |
| 320 | BT_COMP_LOGI("Configured muxer component: muxer-comp-addr=%p, " |
| 321 | "assume-absolute-clock-classes=%d", |
| 322 | muxer_comp, muxer_comp->assume_absolute_clock_classes); |
| 323 | goto end; |
| 324 | |
| 325 | error: |
| 326 | ret = -1; |
| 327 | |
| 328 | end: |
| 329 | bt_value_put_ref(default_params); |
| 330 | bt_value_put_ref(real_params); |
| 331 | return ret; |
| 332 | } |
| 333 | |
| 334 | BT_HIDDEN |
| 335 | bt_component_class_init_method_status muxer_init( |
| 336 | bt_self_component_filter *self_comp_flt, |
| 337 | const bt_value *params, void *init_data) |
| 338 | { |
| 339 | int ret; |
| 340 | bt_component_class_init_method_status status = |
| 341 | BT_COMPONENT_CLASS_INIT_METHOD_STATUS_OK; |
| 342 | bt_self_component_add_port_status add_port_status; |
| 343 | bt_self_component *self_comp = |
| 344 | bt_self_component_filter_as_self_component(self_comp_flt); |
| 345 | struct muxer_comp *muxer_comp = g_new0(struct muxer_comp, 1); |
| 346 | bt_logging_level log_level = bt_component_get_logging_level( |
| 347 | bt_self_component_as_component(self_comp)); |
| 348 | |
| 349 | BT_COMP_LOG_CUR_LVL(BT_LOG_INFO, log_level, self_comp, |
| 350 | "Initializing muxer component: " |
| 351 | "comp-addr=%p, params-addr=%p", self_comp, params); |
| 352 | |
| 353 | if (!muxer_comp) { |
| 354 | BT_COMP_LOG_CUR_LVL(BT_LOG_ERROR, log_level, self_comp, |
| 355 | "Failed to allocate one muxer component."); |
| 356 | goto error; |
| 357 | } |
| 358 | |
| 359 | muxer_comp->log_level = log_level; |
| 360 | muxer_comp->self_comp = self_comp; |
| 361 | muxer_comp->self_comp_flt = self_comp_flt; |
| 362 | ret = configure_muxer_comp(muxer_comp, params); |
| 363 | if (ret) { |
| 364 | BT_COMP_LOGE("Cannot configure muxer component: " |
| 365 | "muxer-comp-addr=%p, params-addr=%p", |
| 366 | muxer_comp, params); |
| 367 | goto error; |
| 368 | } |
| 369 | |
| 370 | bt_self_component_set_data(self_comp, muxer_comp); |
| 371 | add_port_status = add_available_input_port(self_comp_flt); |
| 372 | if (add_port_status != BT_SELF_COMPONENT_ADD_PORT_STATUS_OK) { |
| 373 | BT_COMP_LOGE("Cannot ensure that at least one muxer component's input port is available: " |
| 374 | "muxer-comp-addr=%p, status=%s", |
| 375 | muxer_comp, |
| 376 | bt_common_func_status_string(add_port_status)); |
| 377 | if (add_port_status == |
| 378 | BT_SELF_COMPONENT_ADD_PORT_STATUS_MEMORY_ERROR) { |
| 379 | status = BT_COMPONENT_CLASS_INIT_METHOD_STATUS_MEMORY_ERROR; |
| 380 | } else { |
| 381 | status = BT_COMPONENT_CLASS_INIT_METHOD_STATUS_ERROR; |
| 382 | } |
| 383 | |
| 384 | goto error; |
| 385 | } |
| 386 | |
| 387 | add_port_status = create_output_port(self_comp_flt); |
| 388 | if (add_port_status != BT_SELF_COMPONENT_ADD_PORT_STATUS_OK) { |
| 389 | BT_COMP_LOGE("Cannot create muxer component's output port: " |
| 390 | "muxer-comp-addr=%p, status=%s", |
| 391 | muxer_comp, |
| 392 | bt_common_func_status_string(add_port_status)); |
| 393 | if (add_port_status == |
| 394 | BT_SELF_COMPONENT_ADD_PORT_STATUS_MEMORY_ERROR) { |
| 395 | status = BT_COMPONENT_CLASS_INIT_METHOD_STATUS_MEMORY_ERROR; |
| 396 | } else { |
| 397 | status = BT_COMPONENT_CLASS_INIT_METHOD_STATUS_ERROR; |
| 398 | } |
| 399 | |
| 400 | goto error; |
| 401 | } |
| 402 | |
| 403 | BT_COMP_LOGI("Initialized muxer component: " |
| 404 | "comp-addr=%p, params-addr=%p, muxer-comp-addr=%p", |
| 405 | self_comp, params, muxer_comp); |
| 406 | |
| 407 | goto end; |
| 408 | |
| 409 | error: |
| 410 | destroy_muxer_comp(muxer_comp); |
| 411 | bt_self_component_set_data(self_comp, NULL); |
| 412 | |
| 413 | if (status == BT_COMPONENT_CLASS_INIT_METHOD_STATUS_OK) { |
| 414 | status = BT_COMPONENT_CLASS_INIT_METHOD_STATUS_ERROR; |
| 415 | } |
| 416 | |
| 417 | end: |
| 418 | return status; |
| 419 | } |
| 420 | |
| 421 | BT_HIDDEN |
| 422 | void muxer_finalize(bt_self_component_filter *self_comp) |
| 423 | { |
| 424 | struct muxer_comp *muxer_comp = bt_self_component_get_data( |
| 425 | bt_self_component_filter_as_self_component(self_comp)); |
| 426 | |
| 427 | BT_COMP_LOGI("Finalizing muxer component: comp-addr=%p", |
| 428 | self_comp); |
| 429 | destroy_muxer_comp(muxer_comp); |
| 430 | } |
| 431 | |
| 432 | static |
| 433 | bt_self_component_port_input_message_iterator * |
| 434 | create_msg_iter_on_input_port(struct muxer_comp *muxer_comp, |
| 435 | struct muxer_msg_iter *muxer_msg_iter, |
| 436 | bt_self_component_port_input *self_port) |
| 437 | { |
| 438 | const bt_port *port = bt_self_component_port_as_port( |
| 439 | bt_self_component_port_input_as_self_component_port( |
| 440 | self_port)); |
| 441 | bt_self_component_port_input_message_iterator *msg_iter = |
| 442 | NULL; |
| 443 | |
| 444 | BT_ASSERT(port); |
| 445 | BT_ASSERT(bt_port_is_connected(port)); |
| 446 | |
| 447 | // TODO: Advance the iterator to >= the time of the latest |
| 448 | // returned message by the muxer message |
| 449 | // iterator which creates it. |
| 450 | msg_iter = bt_self_component_port_input_message_iterator_create_from_message_iterator( |
| 451 | muxer_msg_iter->self_msg_iter, self_port); |
| 452 | if (!msg_iter) { |
| 453 | BT_COMP_LOGE("Cannot create upstream message iterator on input port: " |
| 454 | "port-addr=%p, port-name=\"%s\"", |
| 455 | port, bt_port_get_name(port)); |
| 456 | goto end; |
| 457 | } |
| 458 | |
| 459 | BT_COMP_LOGI("Created upstream message iterator on input port: " |
| 460 | "port-addr=%p, port-name=\"%s\", msg-iter-addr=%p", |
| 461 | port, bt_port_get_name(port), msg_iter); |
| 462 | |
| 463 | end: |
| 464 | return msg_iter; |
| 465 | } |
| 466 | |
| 467 | static |
| 468 | bt_component_class_message_iterator_next_method_status muxer_upstream_msg_iter_next( |
| 469 | struct muxer_upstream_msg_iter *muxer_upstream_msg_iter, |
| 470 | bool *is_ended) |
| 471 | { |
| 472 | struct muxer_comp *muxer_comp = |
| 473 | muxer_upstream_msg_iter->muxer_comp; |
| 474 | bt_component_class_message_iterator_next_method_status status; |
| 475 | bt_message_iterator_next_status input_port_iter_status; |
| 476 | bt_message_array_const msgs; |
| 477 | uint64_t i; |
| 478 | uint64_t count; |
| 479 | |
| 480 | BT_COMP_LOGD("Calling upstream message iterator's \"next\" method: " |
| 481 | "muxer-upstream-msg-iter-wrap-addr=%p, msg-iter-addr=%p", |
| 482 | muxer_upstream_msg_iter, |
| 483 | muxer_upstream_msg_iter->msg_iter); |
| 484 | input_port_iter_status = bt_self_component_port_input_message_iterator_next( |
| 485 | muxer_upstream_msg_iter->msg_iter, &msgs, &count); |
| 486 | BT_COMP_LOGD("Upstream message iterator's \"next\" method returned: " |
| 487 | "status=%s", |
| 488 | bt_common_func_status_string(input_port_iter_status)); |
| 489 | |
| 490 | switch (input_port_iter_status) { |
| 491 | case BT_MESSAGE_ITERATOR_NEXT_STATUS_OK: |
| 492 | /* |
| 493 | * Message iterator's current message is |
| 494 | * valid: it must be considered for muxing operations. |
| 495 | */ |
| 496 | BT_COMP_LOGD_STR("Validated upstream message iterator wrapper."); |
| 497 | BT_ASSERT(count > 0); |
| 498 | |
| 499 | /* Move messages to our queue */ |
| 500 | for (i = 0; i < count; i++) { |
| 501 | /* |
| 502 | * Push to tail in order; other side |
| 503 | * (muxer_msg_iter_do_next_one()) consumes |
| 504 | * from the head first. |
| 505 | */ |
| 506 | g_queue_push_tail(muxer_upstream_msg_iter->msgs, |
| 507 | (void *) msgs[i]); |
| 508 | } |
| 509 | status = BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_OK; |
| 510 | break; |
| 511 | case BT_MESSAGE_ITERATOR_NEXT_STATUS_AGAIN: |
| 512 | /* |
| 513 | * Message iterator's current message is not |
| 514 | * valid anymore. Return |
| 515 | * BT_MESSAGE_ITERATOR_NEXT_STATUS_AGAIN immediately. |
| 516 | */ |
| 517 | status = BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_AGAIN; |
| 518 | break; |
| 519 | case BT_MESSAGE_ITERATOR_NEXT_STATUS_END: /* Fall-through. */ |
| 520 | /* |
| 521 | * Message iterator reached the end: release it. It |
| 522 | * won't be considered again to find the youngest |
| 523 | * message. |
| 524 | */ |
| 525 | *is_ended = true; |
| 526 | status = BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_OK; |
| 527 | break; |
| 528 | default: |
| 529 | /* Error or unsupported status code */ |
| 530 | BT_COMP_LOGE("Error or unsupported status code: " |
| 531 | "status-code=%d", input_port_iter_status); |
| 532 | status = BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_ERROR; |
| 533 | break; |
| 534 | } |
| 535 | |
| 536 | return status; |
| 537 | } |
| 538 | |
| 539 | static |
| 540 | int get_msg_ts_ns(struct muxer_comp *muxer_comp, |
| 541 | struct muxer_msg_iter *muxer_msg_iter, |
| 542 | const bt_message *msg, int64_t last_returned_ts_ns, |
| 543 | int64_t *ts_ns) |
| 544 | { |
| 545 | const bt_clock_snapshot *clock_snapshot = NULL; |
| 546 | int ret = 0; |
| 547 | const bt_stream_class *stream_class = NULL; |
| 548 | bt_message_type msg_type; |
| 549 | |
| 550 | BT_ASSERT(msg); |
| 551 | BT_ASSERT(ts_ns); |
| 552 | BT_COMP_LOGD("Getting message's timestamp: " |
| 553 | "muxer-msg-iter-addr=%p, msg-addr=%p, " |
| 554 | "last-returned-ts=%" PRId64, |
| 555 | muxer_msg_iter, msg, last_returned_ts_ns); |
| 556 | |
| 557 | if (G_UNLIKELY(muxer_msg_iter->clock_class_expectation == |
| 558 | MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_NONE)) { |
| 559 | *ts_ns = last_returned_ts_ns; |
| 560 | goto end; |
| 561 | } |
| 562 | |
| 563 | msg_type = bt_message_get_type(msg); |
| 564 | |
| 565 | if (G_UNLIKELY(msg_type == BT_MESSAGE_TYPE_PACKET_BEGINNING)) { |
| 566 | stream_class = bt_stream_borrow_class_const( |
| 567 | bt_packet_borrow_stream_const( |
| 568 | bt_message_packet_beginning_borrow_packet_const( |
| 569 | msg))); |
| 570 | } else if (G_UNLIKELY(msg_type == BT_MESSAGE_TYPE_PACKET_END)) { |
| 571 | stream_class = bt_stream_borrow_class_const( |
| 572 | bt_packet_borrow_stream_const( |
| 573 | bt_message_packet_end_borrow_packet_const( |
| 574 | msg))); |
| 575 | } else if (G_UNLIKELY(msg_type == BT_MESSAGE_TYPE_DISCARDED_EVENTS)) { |
| 576 | stream_class = bt_stream_borrow_class_const( |
| 577 | bt_message_discarded_events_borrow_stream_const(msg)); |
| 578 | } else if (G_UNLIKELY(msg_type == BT_MESSAGE_TYPE_DISCARDED_PACKETS)) { |
| 579 | stream_class = bt_stream_borrow_class_const( |
| 580 | bt_message_discarded_packets_borrow_stream_const(msg)); |
| 581 | } |
| 582 | |
| 583 | switch (msg_type) { |
| 584 | case BT_MESSAGE_TYPE_EVENT: |
| 585 | BT_ASSERT(bt_message_event_borrow_stream_class_default_clock_class_const( |
| 586 | msg)); |
| 587 | clock_snapshot = bt_message_event_borrow_default_clock_snapshot_const( |
| 588 | msg); |
| 589 | break; |
| 590 | case BT_MESSAGE_TYPE_PACKET_BEGINNING: |
| 591 | if (bt_stream_class_packets_have_beginning_default_clock_snapshot( |
| 592 | stream_class)) { |
| 593 | clock_snapshot = bt_message_packet_beginning_borrow_default_clock_snapshot_const( |
| 594 | msg); |
| 595 | } else { |
| 596 | goto no_clock_snapshot; |
| 597 | } |
| 598 | |
| 599 | break; |
| 600 | case BT_MESSAGE_TYPE_PACKET_END: |
| 601 | if (bt_stream_class_packets_have_end_default_clock_snapshot( |
| 602 | stream_class)) { |
| 603 | clock_snapshot = bt_message_packet_end_borrow_default_clock_snapshot_const( |
| 604 | msg); |
| 605 | } else { |
| 606 | goto no_clock_snapshot; |
| 607 | } |
| 608 | |
| 609 | break; |
| 610 | case BT_MESSAGE_TYPE_STREAM_BEGINNING: |
| 611 | { |
| 612 | enum bt_message_stream_clock_snapshot_state snapshot_state = |
| 613 | bt_message_stream_beginning_borrow_default_clock_snapshot_const( |
| 614 | msg, &clock_snapshot); |
| 615 | if (snapshot_state == BT_MESSAGE_STREAM_CLOCK_SNAPSHOT_STATE_UNKNOWN) { |
| 616 | goto no_clock_snapshot; |
| 617 | } |
| 618 | |
| 619 | break; |
| 620 | } |
| 621 | case BT_MESSAGE_TYPE_STREAM_END: |
| 622 | { |
| 623 | enum bt_message_stream_clock_snapshot_state snapshot_state = |
| 624 | bt_message_stream_end_borrow_default_clock_snapshot_const( |
| 625 | msg, &clock_snapshot); |
| 626 | if (snapshot_state == BT_MESSAGE_STREAM_CLOCK_SNAPSHOT_STATE_UNKNOWN) { |
| 627 | goto no_clock_snapshot; |
| 628 | } |
| 629 | |
| 630 | break; |
| 631 | } |
| 632 | case BT_MESSAGE_TYPE_DISCARDED_EVENTS: |
| 633 | if (bt_stream_class_discarded_events_have_default_clock_snapshots( |
| 634 | stream_class)) { |
| 635 | clock_snapshot = bt_message_discarded_events_borrow_beginning_default_clock_snapshot_const( |
| 636 | msg); |
| 637 | } else { |
| 638 | goto no_clock_snapshot; |
| 639 | } |
| 640 | |
| 641 | break; |
| 642 | case BT_MESSAGE_TYPE_DISCARDED_PACKETS: |
| 643 | if (bt_stream_class_discarded_packets_have_default_clock_snapshots( |
| 644 | stream_class)) { |
| 645 | clock_snapshot = bt_message_discarded_packets_borrow_beginning_default_clock_snapshot_const( |
| 646 | msg); |
| 647 | } else { |
| 648 | goto no_clock_snapshot; |
| 649 | } |
| 650 | |
| 651 | break; |
| 652 | case BT_MESSAGE_TYPE_MESSAGE_ITERATOR_INACTIVITY: |
| 653 | clock_snapshot = bt_message_message_iterator_inactivity_borrow_default_clock_snapshot_const( |
| 654 | msg); |
| 655 | break; |
| 656 | default: |
| 657 | /* All the other messages have a higher priority */ |
| 658 | BT_COMP_LOGD_STR("Message has no timestamp: using the last returned timestamp."); |
| 659 | *ts_ns = last_returned_ts_ns; |
| 660 | goto end; |
| 661 | } |
| 662 | |
| 663 | ret = bt_clock_snapshot_get_ns_from_origin(clock_snapshot, ts_ns); |
| 664 | if (ret) { |
| 665 | BT_COMP_LOGE("Cannot get nanoseconds from Epoch of clock snapshot: " |
| 666 | "clock-snapshot-addr=%p", clock_snapshot); |
| 667 | goto error; |
| 668 | } |
| 669 | |
| 670 | goto end; |
| 671 | |
| 672 | no_clock_snapshot: |
| 673 | BT_COMP_LOGD_STR("Message's default clock snapshot is missing: " |
| 674 | "using the last returned timestamp."); |
| 675 | *ts_ns = last_returned_ts_ns; |
| 676 | goto end; |
| 677 | |
| 678 | error: |
| 679 | ret = -1; |
| 680 | |
| 681 | end: |
| 682 | if (ret == 0) { |
| 683 | BT_COMP_LOGD("Found message's timestamp: " |
| 684 | "muxer-msg-iter-addr=%p, msg-addr=%p, " |
| 685 | "last-returned-ts=%" PRId64 ", ts=%" PRId64, |
| 686 | muxer_msg_iter, msg, last_returned_ts_ns, |
| 687 | *ts_ns); |
| 688 | } |
| 689 | |
| 690 | return ret; |
| 691 | } |
| 692 | |
| 693 | static inline |
| 694 | int validate_clock_class(struct muxer_msg_iter *muxer_msg_iter, |
| 695 | struct muxer_comp *muxer_comp, |
| 696 | const bt_clock_class *clock_class) |
| 697 | { |
| 698 | int ret = 0; |
| 699 | const uint8_t *cc_uuid; |
| 700 | const char *cc_name; |
| 701 | |
| 702 | BT_ASSERT(clock_class); |
| 703 | cc_uuid = bt_clock_class_get_uuid(clock_class); |
| 704 | cc_name = bt_clock_class_get_name(clock_class); |
| 705 | |
| 706 | if (muxer_msg_iter->clock_class_expectation == |
| 707 | MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_ANY) { |
| 708 | /* |
| 709 | * This is the first clock class that this muxer |
| 710 | * message iterator encounters. Its properties |
| 711 | * determine what to expect for the whole lifetime of |
| 712 | * the iterator without a true |
| 713 | * `assume-absolute-clock-classes` parameter. |
| 714 | */ |
| 715 | if (bt_clock_class_origin_is_unix_epoch(clock_class)) { |
| 716 | /* Expect absolute clock classes */ |
| 717 | muxer_msg_iter->clock_class_expectation = |
| 718 | MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_ABSOLUTE; |
| 719 | } else { |
| 720 | if (cc_uuid) { |
| 721 | /* |
| 722 | * Expect non-absolute clock classes |
| 723 | * with a specific UUID. |
| 724 | */ |
| 725 | muxer_msg_iter->clock_class_expectation = |
| 726 | MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_SPEC_UUID; |
| 727 | bt_uuid_copy(muxer_msg_iter->expected_clock_class_uuid, cc_uuid); |
| 728 | } else { |
| 729 | /* |
| 730 | * Expect non-absolute clock classes |
| 731 | * with no UUID. |
| 732 | */ |
| 733 | muxer_msg_iter->clock_class_expectation = |
| 734 | MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_NO_UUID; |
| 735 | } |
| 736 | } |
| 737 | } |
| 738 | |
| 739 | if (!muxer_comp->assume_absolute_clock_classes) { |
| 740 | switch (muxer_msg_iter->clock_class_expectation) { |
| 741 | case MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_ABSOLUTE: |
| 742 | if (!bt_clock_class_origin_is_unix_epoch(clock_class)) { |
| 743 | BT_COMP_LOGE("Expecting an absolute clock class, " |
| 744 | "but got a non-absolute one: " |
| 745 | "clock-class-addr=%p, clock-class-name=\"%s\"", |
| 746 | clock_class, cc_name); |
| 747 | goto error; |
| 748 | } |
| 749 | break; |
| 750 | case MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_NO_UUID: |
| 751 | if (bt_clock_class_origin_is_unix_epoch(clock_class)) { |
| 752 | BT_COMP_LOGE("Expecting a non-absolute clock class with no UUID, " |
| 753 | "but got an absolute one: " |
| 754 | "clock-class-addr=%p, clock-class-name=\"%s\"", |
| 755 | clock_class, cc_name); |
| 756 | goto error; |
| 757 | } |
| 758 | |
| 759 | if (cc_uuid) { |
| 760 | BT_COMP_LOGE("Expecting a non-absolute clock class with no UUID, " |
| 761 | "but got one with a UUID: " |
| 762 | "clock-class-addr=%p, clock-class-name=\"%s\", " |
| 763 | "uuid=\"" BT_UUID_FMT "\"", |
| 764 | clock_class, cc_name, BT_UUID_FMT_VALUES(cc_uuid)); |
| 765 | goto error; |
| 766 | } |
| 767 | break; |
| 768 | case MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_NOT_ABS_SPEC_UUID: |
| 769 | if (bt_clock_class_origin_is_unix_epoch(clock_class)) { |
| 770 | BT_COMP_LOGE("Expecting a non-absolute clock class with a specific UUID, " |
| 771 | "but got an absolute one: " |
| 772 | "clock-class-addr=%p, clock-class-name=\"%s\"", |
| 773 | clock_class, cc_name); |
| 774 | goto error; |
| 775 | } |
| 776 | |
| 777 | if (!cc_uuid) { |
| 778 | BT_COMP_LOGE("Expecting a non-absolute clock class with a specific UUID, " |
| 779 | "but got one with no UUID: " |
| 780 | "clock-class-addr=%p, clock-class-name=\"%s\"", |
| 781 | clock_class, cc_name); |
| 782 | goto error; |
| 783 | } |
| 784 | |
| 785 | if (bt_uuid_compare(muxer_msg_iter->expected_clock_class_uuid, cc_uuid) != 0) { |
| 786 | BT_COMP_LOGE("Expecting a non-absolute clock class with a specific UUID, " |
| 787 | "but got one with different UUID: " |
| 788 | "clock-class-addr=%p, clock-class-name=\"%s\", " |
| 789 | "expected-uuid=\"" BT_UUID_FMT "\", " |
| 790 | "uuid=\"" BT_UUID_FMT "\"", |
| 791 | clock_class, cc_name, |
| 792 | BT_UUID_FMT_VALUES(muxer_msg_iter->expected_clock_class_uuid), |
| 793 | BT_UUID_FMT_VALUES(cc_uuid)); |
| 794 | goto error; |
| 795 | } |
| 796 | break; |
| 797 | case MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_NONE: |
| 798 | BT_COMP_LOGE("Expecting no clock class, but got one: " |
| 799 | "clock-class-addr=%p, clock-class-name=\"%s\"", |
| 800 | clock_class, cc_name); |
| 801 | goto error; |
| 802 | default: |
| 803 | /* Unexpected */ |
| 804 | BT_COMP_LOGF("Unexpected clock class expectation: " |
| 805 | "expectation-code=%d", |
| 806 | muxer_msg_iter->clock_class_expectation); |
| 807 | abort(); |
| 808 | } |
| 809 | } |
| 810 | |
| 811 | goto end; |
| 812 | |
| 813 | error: |
| 814 | ret = -1; |
| 815 | |
| 816 | end: |
| 817 | return ret; |
| 818 | } |
| 819 | |
| 820 | static inline |
| 821 | int validate_new_stream_clock_class(struct muxer_msg_iter *muxer_msg_iter, |
| 822 | struct muxer_comp *muxer_comp, const bt_stream *stream) |
| 823 | { |
| 824 | int ret = 0; |
| 825 | const bt_stream_class *stream_class = |
| 826 | bt_stream_borrow_class_const(stream); |
| 827 | const bt_clock_class *clock_class = |
| 828 | bt_stream_class_borrow_default_clock_class_const(stream_class); |
| 829 | |
| 830 | if (!clock_class) { |
| 831 | if (muxer_msg_iter->clock_class_expectation == |
| 832 | MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_ANY) { |
| 833 | /* Expect no clock class */ |
| 834 | muxer_msg_iter->clock_class_expectation = |
| 835 | MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_NONE; |
| 836 | } else if (muxer_msg_iter->clock_class_expectation != |
| 837 | MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_NONE) { |
| 838 | BT_COMP_LOGE("Expecting stream class without a default clock class: " |
| 839 | "stream-class-addr=%p, stream-class-name=\"%s\", " |
| 840 | "stream-class-id=%" PRIu64, |
| 841 | stream_class, bt_stream_class_get_name(stream_class), |
| 842 | bt_stream_class_get_id(stream_class)); |
| 843 | ret = -1; |
| 844 | } |
| 845 | |
| 846 | goto end; |
| 847 | } |
| 848 | |
| 849 | ret = validate_clock_class(muxer_msg_iter, muxer_comp, clock_class); |
| 850 | |
| 851 | end: |
| 852 | return ret; |
| 853 | } |
| 854 | |
| 855 | /* |
| 856 | * This function finds the youngest available message amongst the |
| 857 | * non-ended upstream message iterators and returns the upstream |
| 858 | * message iterator which has it, or |
| 859 | * BT_MESSAGE_ITERATOR_STATUS_END if there's no available |
| 860 | * message. |
| 861 | * |
| 862 | * This function does NOT: |
| 863 | * |
| 864 | * * Update any upstream message iterator. |
| 865 | * * Check the upstream message iterators to retry. |
| 866 | * |
| 867 | * On sucess, this function sets *muxer_upstream_msg_iter to the |
| 868 | * upstream message iterator of which the current message is |
| 869 | * the youngest, and sets *ts_ns to its time. |
| 870 | */ |
| 871 | static |
| 872 | bt_component_class_message_iterator_next_method_status |
| 873 | muxer_msg_iter_youngest_upstream_msg_iter( |
| 874 | struct muxer_comp *muxer_comp, |
| 875 | struct muxer_msg_iter *muxer_msg_iter, |
| 876 | struct muxer_upstream_msg_iter **muxer_upstream_msg_iter, |
| 877 | int64_t *ts_ns) |
| 878 | { |
| 879 | size_t i; |
| 880 | int ret; |
| 881 | int64_t youngest_ts_ns = INT64_MAX; |
| 882 | bt_component_class_message_iterator_next_method_status status = |
| 883 | BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_OK; |
| 884 | |
| 885 | BT_ASSERT(muxer_comp); |
| 886 | BT_ASSERT(muxer_msg_iter); |
| 887 | BT_ASSERT(muxer_upstream_msg_iter); |
| 888 | *muxer_upstream_msg_iter = NULL; |
| 889 | |
| 890 | for (i = 0; i < muxer_msg_iter->active_muxer_upstream_msg_iters->len; |
| 891 | i++) { |
| 892 | const bt_message *msg; |
| 893 | struct muxer_upstream_msg_iter *cur_muxer_upstream_msg_iter = |
| 894 | g_ptr_array_index( |
| 895 | muxer_msg_iter->active_muxer_upstream_msg_iters, |
| 896 | i); |
| 897 | int64_t msg_ts_ns; |
| 898 | |
| 899 | if (!cur_muxer_upstream_msg_iter->msg_iter) { |
| 900 | /* This upstream message iterator is ended */ |
| 901 | BT_COMP_LOGT("Skipping ended upstream message iterator: " |
| 902 | "muxer-upstream-msg-iter-wrap-addr=%p", |
| 903 | cur_muxer_upstream_msg_iter); |
| 904 | continue; |
| 905 | } |
| 906 | |
| 907 | BT_ASSERT(cur_muxer_upstream_msg_iter->msgs->length > 0); |
| 908 | msg = g_queue_peek_head(cur_muxer_upstream_msg_iter->msgs); |
| 909 | BT_ASSERT(msg); |
| 910 | |
| 911 | if (G_UNLIKELY(bt_message_get_type(msg) == |
| 912 | BT_MESSAGE_TYPE_STREAM_BEGINNING)) { |
| 913 | ret = validate_new_stream_clock_class( |
| 914 | muxer_msg_iter, muxer_comp, |
| 915 | bt_message_stream_beginning_borrow_stream_const( |
| 916 | msg)); |
| 917 | if (ret) { |
| 918 | /* |
| 919 | * validate_new_stream_clock_class() logs |
| 920 | * errors. |
| 921 | */ |
| 922 | status = BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_ERROR; |
| 923 | goto end; |
| 924 | } |
| 925 | } else if (G_UNLIKELY(bt_message_get_type(msg) == |
| 926 | BT_MESSAGE_TYPE_MESSAGE_ITERATOR_INACTIVITY)) { |
| 927 | const bt_clock_snapshot *cs; |
| 928 | |
| 929 | cs = bt_message_message_iterator_inactivity_borrow_default_clock_snapshot_const( |
| 930 | msg); |
| 931 | ret = validate_clock_class(muxer_msg_iter, muxer_comp, |
| 932 | bt_clock_snapshot_borrow_clock_class_const(cs)); |
| 933 | if (ret) { |
| 934 | /* validate_clock_class() logs errors */ |
| 935 | status = BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_ERROR; |
| 936 | goto end; |
| 937 | } |
| 938 | } |
| 939 | |
| 940 | ret = get_msg_ts_ns(muxer_comp, muxer_msg_iter, msg, |
| 941 | muxer_msg_iter->last_returned_ts_ns, &msg_ts_ns); |
| 942 | if (ret) { |
| 943 | /* get_msg_ts_ns() logs errors */ |
| 944 | *muxer_upstream_msg_iter = NULL; |
| 945 | status = BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_ERROR; |
| 946 | goto end; |
| 947 | } |
| 948 | |
| 949 | if (msg_ts_ns < youngest_ts_ns) { |
| 950 | *muxer_upstream_msg_iter = |
| 951 | cur_muxer_upstream_msg_iter; |
| 952 | youngest_ts_ns = msg_ts_ns; |
| 953 | *ts_ns = youngest_ts_ns; |
| 954 | } else if (msg_ts_ns == youngest_ts_ns) { |
| 955 | /* |
| 956 | * The currently selected message to be sent downstream |
| 957 | * next has the exact same timestamp that of the |
| 958 | * current candidate message. We must break the tie |
| 959 | * in a predictable manner. |
| 960 | */ |
| 961 | const bt_message *selected_msg = g_queue_peek_head( |
| 962 | (*muxer_upstream_msg_iter)->msgs); |
| 963 | BT_COMP_LOGD_STR("Two of the next message candidates have the same timestamps, pick one deterministically."); |
| 964 | |
| 965 | /* |
| 966 | * Order the messages in an arbitrary but determinitic |
| 967 | * way. |
| 968 | */ |
| 969 | ret = common_muxing_compare_messages(msg, selected_msg); |
| 970 | if (ret < 0) { |
| 971 | /* |
| 972 | * The `msg` should go first. Update the next |
| 973 | * iterator and the current timestamp. |
| 974 | */ |
| 975 | *muxer_upstream_msg_iter = |
| 976 | cur_muxer_upstream_msg_iter; |
| 977 | youngest_ts_ns = msg_ts_ns; |
| 978 | *ts_ns = youngest_ts_ns; |
| 979 | } else if (ret == 0) { |
| 980 | /* Unable to pick which one should go first. */ |
| 981 | BT_COMP_LOGW("Cannot deterministically pick next upstream message iterator because they have identical next messages: " |
| 982 | "muxer-upstream-msg-iter-wrap-addr=%p" |
| 983 | "cur-muxer-upstream-msg-iter-wrap-addr=%p", |
| 984 | *muxer_upstream_msg_iter, |
| 985 | cur_muxer_upstream_msg_iter); |
| 986 | } |
| 987 | } |
| 988 | } |
| 989 | |
| 990 | if (!*muxer_upstream_msg_iter) { |
| 991 | status = BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_END; |
| 992 | *ts_ns = INT64_MIN; |
| 993 | } |
| 994 | |
| 995 | end: |
| 996 | return status; |
| 997 | } |
| 998 | |
| 999 | static |
| 1000 | bt_component_class_message_iterator_next_method_status |
| 1001 | validate_muxer_upstream_msg_iter( |
| 1002 | struct muxer_upstream_msg_iter *muxer_upstream_msg_iter, |
| 1003 | bool *is_ended) |
| 1004 | { |
| 1005 | struct muxer_comp *muxer_comp = |
| 1006 | muxer_upstream_msg_iter->muxer_comp; |
| 1007 | bt_component_class_message_iterator_next_method_status status = |
| 1008 | BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_OK; |
| 1009 | |
| 1010 | BT_COMP_LOGD("Validating muxer's upstream message iterator wrapper: " |
| 1011 | "muxer-upstream-msg-iter-wrap-addr=%p", |
| 1012 | muxer_upstream_msg_iter); |
| 1013 | |
| 1014 | if (muxer_upstream_msg_iter->msgs->length > 0 || |
| 1015 | !muxer_upstream_msg_iter->msg_iter) { |
| 1016 | BT_COMP_LOGD("Already valid or not considered: " |
| 1017 | "queue-len=%u, upstream-msg-iter-addr=%p", |
| 1018 | muxer_upstream_msg_iter->msgs->length, |
| 1019 | muxer_upstream_msg_iter->msg_iter); |
| 1020 | goto end; |
| 1021 | } |
| 1022 | |
| 1023 | /* muxer_upstream_msg_iter_next() logs details/errors */ |
| 1024 | status = muxer_upstream_msg_iter_next(muxer_upstream_msg_iter, |
| 1025 | is_ended); |
| 1026 | |
| 1027 | end: |
| 1028 | return status; |
| 1029 | } |
| 1030 | |
| 1031 | static |
| 1032 | bt_component_class_message_iterator_next_method_status |
| 1033 | validate_muxer_upstream_msg_iters( |
| 1034 | struct muxer_msg_iter *muxer_msg_iter) |
| 1035 | { |
| 1036 | struct muxer_comp *muxer_comp = muxer_msg_iter->muxer_comp; |
| 1037 | bt_component_class_message_iterator_next_method_status status = |
| 1038 | BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_OK; |
| 1039 | size_t i; |
| 1040 | |
| 1041 | BT_COMP_LOGD("Validating muxer's upstream message iterator wrappers: " |
| 1042 | "muxer-msg-iter-addr=%p", muxer_msg_iter); |
| 1043 | |
| 1044 | for (i = 0; i < muxer_msg_iter->active_muxer_upstream_msg_iters->len; |
| 1045 | i++) { |
| 1046 | bool is_ended = false; |
| 1047 | struct muxer_upstream_msg_iter *muxer_upstream_msg_iter = |
| 1048 | g_ptr_array_index( |
| 1049 | muxer_msg_iter->active_muxer_upstream_msg_iters, |
| 1050 | i); |
| 1051 | |
| 1052 | status = validate_muxer_upstream_msg_iter( |
| 1053 | muxer_upstream_msg_iter, &is_ended); |
| 1054 | if (status != BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_OK) { |
| 1055 | if (status < 0) { |
| 1056 | BT_COMP_LOGE("Cannot validate muxer's upstream message iterator wrapper: " |
| 1057 | "muxer-msg-iter-addr=%p, " |
| 1058 | "muxer-upstream-msg-iter-wrap-addr=%p", |
| 1059 | muxer_msg_iter, |
| 1060 | muxer_upstream_msg_iter); |
| 1061 | } else { |
| 1062 | BT_COMP_LOGD("Cannot validate muxer's upstream message iterator wrapper: " |
| 1063 | "muxer-msg-iter-addr=%p, " |
| 1064 | "muxer-upstream-msg-iter-wrap-addr=%p", |
| 1065 | muxer_msg_iter, |
| 1066 | muxer_upstream_msg_iter); |
| 1067 | } |
| 1068 | |
| 1069 | goto end; |
| 1070 | } |
| 1071 | |
| 1072 | /* |
| 1073 | * Move this muxer upstream message iterator to the |
| 1074 | * array of ended iterators if it's ended. |
| 1075 | */ |
| 1076 | if (G_UNLIKELY(is_ended)) { |
| 1077 | BT_COMP_LOGD("Muxer's upstream message iterator wrapper: ended or canceled: " |
| 1078 | "muxer-msg-iter-addr=%p, " |
| 1079 | "muxer-upstream-msg-iter-wrap-addr=%p", |
| 1080 | muxer_msg_iter, muxer_upstream_msg_iter); |
| 1081 | g_ptr_array_add( |
| 1082 | muxer_msg_iter->ended_muxer_upstream_msg_iters, |
| 1083 | muxer_upstream_msg_iter); |
| 1084 | muxer_msg_iter->active_muxer_upstream_msg_iters->pdata[i] = NULL; |
| 1085 | |
| 1086 | /* |
| 1087 | * Use g_ptr_array_remove_fast() because the |
| 1088 | * order of those elements is not important. |
| 1089 | */ |
| 1090 | g_ptr_array_remove_index_fast( |
| 1091 | muxer_msg_iter->active_muxer_upstream_msg_iters, |
| 1092 | i); |
| 1093 | i--; |
| 1094 | } |
| 1095 | } |
| 1096 | |
| 1097 | end: |
| 1098 | return status; |
| 1099 | } |
| 1100 | |
| 1101 | static inline |
| 1102 | bt_component_class_message_iterator_next_method_status muxer_msg_iter_do_next_one( |
| 1103 | struct muxer_comp *muxer_comp, |
| 1104 | struct muxer_msg_iter *muxer_msg_iter, |
| 1105 | const bt_message **msg) |
| 1106 | { |
| 1107 | bt_component_class_message_iterator_next_method_status status; |
| 1108 | struct muxer_upstream_msg_iter *muxer_upstream_msg_iter = NULL; |
| 1109 | int64_t next_return_ts; |
| 1110 | |
| 1111 | status = validate_muxer_upstream_msg_iters(muxer_msg_iter); |
| 1112 | if (status != BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_OK) { |
| 1113 | /* validate_muxer_upstream_msg_iters() logs details */ |
| 1114 | goto end; |
| 1115 | } |
| 1116 | |
| 1117 | /* |
| 1118 | * At this point we know that all the existing upstream |
| 1119 | * message iterators are valid. We can find the one, |
| 1120 | * amongst those, of which the current message is the |
| 1121 | * youngest. |
| 1122 | */ |
| 1123 | status = muxer_msg_iter_youngest_upstream_msg_iter(muxer_comp, |
| 1124 | muxer_msg_iter, &muxer_upstream_msg_iter, |
| 1125 | &next_return_ts); |
| 1126 | if (status < 0 || status == BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_END) { |
| 1127 | if (status < 0) { |
| 1128 | BT_COMP_LOGE("Cannot find the youngest upstream message iterator wrapper: " |
| 1129 | "status=%s", |
| 1130 | bt_common_func_status_string(status)); |
| 1131 | } else { |
| 1132 | BT_COMP_LOGD("Cannot find the youngest upstream message iterator wrapper: " |
| 1133 | "status=%s", |
| 1134 | bt_common_func_status_string(status)); |
| 1135 | } |
| 1136 | |
| 1137 | goto end; |
| 1138 | } |
| 1139 | |
| 1140 | if (next_return_ts < muxer_msg_iter->last_returned_ts_ns) { |
| 1141 | BT_COMP_LOGE("Youngest upstream message iterator wrapper's timestamp is less than muxer's message iterator's last returned timestamp: " |
| 1142 | "muxer-msg-iter-addr=%p, ts=%" PRId64 ", " |
| 1143 | "last-returned-ts=%" PRId64, |
| 1144 | muxer_msg_iter, next_return_ts, |
| 1145 | muxer_msg_iter->last_returned_ts_ns); |
| 1146 | status = BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_ERROR; |
| 1147 | goto end; |
| 1148 | } |
| 1149 | |
| 1150 | BT_COMP_LOGD("Found youngest upstream message iterator wrapper: " |
| 1151 | "muxer-msg-iter-addr=%p, " |
| 1152 | "muxer-upstream-msg-iter-wrap-addr=%p, " |
| 1153 | "ts=%" PRId64, |
| 1154 | muxer_msg_iter, muxer_upstream_msg_iter, next_return_ts); |
| 1155 | BT_ASSERT(status == BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_OK); |
| 1156 | BT_ASSERT(muxer_upstream_msg_iter); |
| 1157 | |
| 1158 | /* |
| 1159 | * Consume from the queue's head: other side |
| 1160 | * (muxer_upstream_msg_iter_next()) writes to the tail. |
| 1161 | */ |
| 1162 | *msg = g_queue_pop_head(muxer_upstream_msg_iter->msgs); |
| 1163 | BT_ASSERT(*msg); |
| 1164 | muxer_msg_iter->last_returned_ts_ns = next_return_ts; |
| 1165 | |
| 1166 | end: |
| 1167 | return status; |
| 1168 | } |
| 1169 | |
| 1170 | static |
| 1171 | bt_component_class_message_iterator_next_method_status muxer_msg_iter_do_next( |
| 1172 | struct muxer_comp *muxer_comp, |
| 1173 | struct muxer_msg_iter *muxer_msg_iter, |
| 1174 | bt_message_array_const msgs, uint64_t capacity, |
| 1175 | uint64_t *count) |
| 1176 | { |
| 1177 | bt_component_class_message_iterator_next_method_status status = |
| 1178 | BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_OK; |
| 1179 | uint64_t i = 0; |
| 1180 | |
| 1181 | while (i < capacity && status == BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_OK) { |
| 1182 | status = muxer_msg_iter_do_next_one(muxer_comp, |
| 1183 | muxer_msg_iter, &msgs[i]); |
| 1184 | if (status == BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_OK) { |
| 1185 | i++; |
| 1186 | } |
| 1187 | } |
| 1188 | |
| 1189 | if (i > 0) { |
| 1190 | /* |
| 1191 | * Even if muxer_msg_iter_do_next_one() returned |
| 1192 | * something else than |
| 1193 | * BT_MESSAGE_ITERATOR_STATUS_OK, we accumulated |
| 1194 | * message objects in the output message |
| 1195 | * array, so we need to return |
| 1196 | * BT_MESSAGE_ITERATOR_STATUS_OK so that they are |
| 1197 | * transfered to downstream. This other status occurs |
| 1198 | * again the next time muxer_msg_iter_do_next() is |
| 1199 | * called, possibly without any accumulated |
| 1200 | * message, in which case we'll return it. |
| 1201 | */ |
| 1202 | *count = i; |
| 1203 | status = BT_COMPONENT_CLASS_MESSAGE_ITERATOR_NEXT_METHOD_STATUS_OK; |
| 1204 | } |
| 1205 | |
| 1206 | return status; |
| 1207 | } |
| 1208 | |
| 1209 | static |
| 1210 | void destroy_muxer_msg_iter(struct muxer_msg_iter *muxer_msg_iter) |
| 1211 | { |
| 1212 | struct muxer_comp *muxer_comp; |
| 1213 | |
| 1214 | if (!muxer_msg_iter) { |
| 1215 | return; |
| 1216 | } |
| 1217 | |
| 1218 | muxer_comp = muxer_msg_iter->muxer_comp; |
| 1219 | BT_COMP_LOGD("Destroying muxer component's message iterator: " |
| 1220 | "muxer-msg-iter-addr=%p", muxer_msg_iter); |
| 1221 | |
| 1222 | if (muxer_msg_iter->active_muxer_upstream_msg_iters) { |
| 1223 | BT_COMP_LOGD_STR("Destroying muxer's active upstream message iterator wrappers."); |
| 1224 | g_ptr_array_free( |
| 1225 | muxer_msg_iter->active_muxer_upstream_msg_iters, TRUE); |
| 1226 | } |
| 1227 | |
| 1228 | if (muxer_msg_iter->ended_muxer_upstream_msg_iters) { |
| 1229 | BT_COMP_LOGD_STR("Destroying muxer's ended upstream message iterator wrappers."); |
| 1230 | g_ptr_array_free( |
| 1231 | muxer_msg_iter->ended_muxer_upstream_msg_iters, TRUE); |
| 1232 | } |
| 1233 | |
| 1234 | g_free(muxer_msg_iter); |
| 1235 | } |
| 1236 | |
| 1237 | static |
| 1238 | int muxer_msg_iter_init_upstream_iterators(struct muxer_comp *muxer_comp, |
| 1239 | struct muxer_msg_iter *muxer_msg_iter) |
| 1240 | { |
| 1241 | int64_t count; |
| 1242 | int64_t i; |
| 1243 | int ret = 0; |
| 1244 | |
| 1245 | count = bt_component_filter_get_input_port_count( |
| 1246 | bt_self_component_filter_as_component_filter( |
| 1247 | muxer_comp->self_comp_flt)); |
| 1248 | if (count < 0) { |
| 1249 | BT_COMP_LOGD("No input port to initialize for muxer component's message iterator: " |
| 1250 | "muxer-comp-addr=%p, muxer-msg-iter-addr=%p", |
| 1251 | muxer_comp, muxer_msg_iter); |
| 1252 | goto end; |
| 1253 | } |
| 1254 | |
| 1255 | for (i = 0; i < count; i++) { |
| 1256 | bt_self_component_port_input_message_iterator *upstream_msg_iter; |
| 1257 | bt_self_component_port_input *self_port = |
| 1258 | bt_self_component_filter_borrow_input_port_by_index( |
| 1259 | muxer_comp->self_comp_flt, i); |
| 1260 | const bt_port *port; |
| 1261 | |
| 1262 | BT_ASSERT(self_port); |
| 1263 | port = bt_self_component_port_as_port( |
| 1264 | bt_self_component_port_input_as_self_component_port( |
| 1265 | self_port)); |
| 1266 | BT_ASSERT(port); |
| 1267 | |
| 1268 | if (!bt_port_is_connected(port)) { |
| 1269 | /* Skip non-connected port */ |
| 1270 | continue; |
| 1271 | } |
| 1272 | |
| 1273 | upstream_msg_iter = create_msg_iter_on_input_port(muxer_comp, |
| 1274 | muxer_msg_iter, self_port); |
| 1275 | if (!upstream_msg_iter) { |
| 1276 | /* create_msg_iter_on_input_port() logs errors */ |
| 1277 | BT_ASSERT(!upstream_msg_iter); |
| 1278 | ret = -1; |
| 1279 | goto end; |
| 1280 | } |
| 1281 | |
| 1282 | ret = muxer_msg_iter_add_upstream_msg_iter(muxer_msg_iter, |
| 1283 | upstream_msg_iter); |
| 1284 | bt_self_component_port_input_message_iterator_put_ref( |
| 1285 | upstream_msg_iter); |
| 1286 | if (ret) { |
| 1287 | /* muxer_msg_iter_add_upstream_msg_iter() logs errors */ |
| 1288 | goto end; |
| 1289 | } |
| 1290 | } |
| 1291 | |
| 1292 | end: |
| 1293 | return ret; |
| 1294 | } |
| 1295 | |
| 1296 | BT_HIDDEN |
| 1297 | bt_component_class_message_iterator_init_method_status muxer_msg_iter_init( |
| 1298 | bt_self_message_iterator *self_msg_iter, |
| 1299 | bt_self_component_filter *self_comp, |
| 1300 | bt_self_component_port_output *port) |
| 1301 | { |
| 1302 | struct muxer_comp *muxer_comp = NULL; |
| 1303 | struct muxer_msg_iter *muxer_msg_iter = NULL; |
| 1304 | bt_component_class_message_iterator_init_method_status status = |
| 1305 | BT_COMPONENT_CLASS_MESSAGE_ITERATOR_INIT_METHOD_STATUS_OK; |
| 1306 | int ret; |
| 1307 | |
| 1308 | muxer_comp = bt_self_component_get_data( |
| 1309 | bt_self_component_filter_as_self_component(self_comp)); |
| 1310 | BT_ASSERT(muxer_comp); |
| 1311 | BT_COMP_LOGD("Initializing muxer component's message iterator: " |
| 1312 | "comp-addr=%p, muxer-comp-addr=%p, msg-iter-addr=%p", |
| 1313 | self_comp, muxer_comp, self_msg_iter); |
| 1314 | |
| 1315 | if (muxer_comp->initializing_muxer_msg_iter) { |
| 1316 | /* |
| 1317 | * Weird, unhandled situation detected: downstream |
| 1318 | * creates a muxer message iterator while creating |
| 1319 | * another muxer message iterator (same component). |
| 1320 | */ |
| 1321 | BT_COMP_LOGE("Recursive initialization of muxer component's message iterator: " |
| 1322 | "comp-addr=%p, muxer-comp-addr=%p, msg-iter-addr=%p", |
| 1323 | self_comp, muxer_comp, self_msg_iter); |
| 1324 | goto error; |
| 1325 | } |
| 1326 | |
| 1327 | muxer_comp->initializing_muxer_msg_iter = true; |
| 1328 | muxer_msg_iter = g_new0(struct muxer_msg_iter, 1); |
| 1329 | if (!muxer_msg_iter) { |
| 1330 | BT_COMP_LOGE_STR("Failed to allocate one muxer component's message iterator."); |
| 1331 | goto error; |
| 1332 | } |
| 1333 | |
| 1334 | muxer_msg_iter->muxer_comp = muxer_comp; |
| 1335 | muxer_msg_iter->self_msg_iter = self_msg_iter; |
| 1336 | muxer_msg_iter->last_returned_ts_ns = INT64_MIN; |
| 1337 | muxer_msg_iter->active_muxer_upstream_msg_iters = |
| 1338 | g_ptr_array_new_with_free_func( |
| 1339 | (GDestroyNotify) destroy_muxer_upstream_msg_iter); |
| 1340 | if (!muxer_msg_iter->active_muxer_upstream_msg_iters) { |
| 1341 | BT_COMP_LOGE_STR("Failed to allocate a GPtrArray."); |
| 1342 | goto error; |
| 1343 | } |
| 1344 | |
| 1345 | muxer_msg_iter->ended_muxer_upstream_msg_iters = |
| 1346 | g_ptr_array_new_with_free_func( |
| 1347 | (GDestroyNotify) destroy_muxer_upstream_msg_iter); |
| 1348 | if (!muxer_msg_iter->ended_muxer_upstream_msg_iters) { |
| 1349 | BT_COMP_LOGE_STR("Failed to allocate a GPtrArray."); |
| 1350 | goto error; |
| 1351 | } |
| 1352 | |
| 1353 | ret = muxer_msg_iter_init_upstream_iterators(muxer_comp, |
| 1354 | muxer_msg_iter); |
| 1355 | if (ret) { |
| 1356 | BT_COMP_LOGE("Cannot initialize connected input ports for muxer component's message iterator: " |
| 1357 | "comp-addr=%p, muxer-comp-addr=%p, " |
| 1358 | "muxer-msg-iter-addr=%p, msg-iter-addr=%p, ret=%d", |
| 1359 | self_comp, muxer_comp, muxer_msg_iter, |
| 1360 | self_msg_iter, ret); |
| 1361 | goto error; |
| 1362 | } |
| 1363 | |
| 1364 | bt_self_message_iterator_set_data(self_msg_iter, muxer_msg_iter); |
| 1365 | BT_COMP_LOGD("Initialized muxer component's message iterator: " |
| 1366 | "comp-addr=%p, muxer-comp-addr=%p, muxer-msg-iter-addr=%p, " |
| 1367 | "msg-iter-addr=%p", |
| 1368 | self_comp, muxer_comp, muxer_msg_iter, self_msg_iter); |
| 1369 | goto end; |
| 1370 | |
| 1371 | error: |
| 1372 | destroy_muxer_msg_iter(muxer_msg_iter); |
| 1373 | bt_self_message_iterator_set_data(self_msg_iter, NULL); |
| 1374 | status = BT_COMPONENT_CLASS_MESSAGE_ITERATOR_INIT_METHOD_STATUS_ERROR; |
| 1375 | |
| 1376 | end: |
| 1377 | muxer_comp->initializing_muxer_msg_iter = false; |
| 1378 | return status; |
| 1379 | } |
| 1380 | |
| 1381 | BT_HIDDEN |
| 1382 | void muxer_msg_iter_finalize(bt_self_message_iterator *self_msg_iter) |
| 1383 | { |
| 1384 | struct muxer_msg_iter *muxer_msg_iter = |
| 1385 | bt_self_message_iterator_get_data(self_msg_iter); |
| 1386 | bt_self_component *self_comp = NULL; |
| 1387 | struct muxer_comp *muxer_comp = NULL; |
| 1388 | |
| 1389 | self_comp = bt_self_message_iterator_borrow_component( |
| 1390 | self_msg_iter); |
| 1391 | BT_ASSERT(self_comp); |
| 1392 | muxer_comp = bt_self_component_get_data(self_comp); |
| 1393 | BT_COMP_LOGD("Finalizing muxer component's message iterator: " |
| 1394 | "comp-addr=%p, muxer-comp-addr=%p, muxer-msg-iter-addr=%p, " |
| 1395 | "msg-iter-addr=%p", |
| 1396 | self_comp, muxer_comp, muxer_msg_iter, self_msg_iter); |
| 1397 | |
| 1398 | if (muxer_msg_iter) { |
| 1399 | destroy_muxer_msg_iter(muxer_msg_iter); |
| 1400 | } |
| 1401 | } |
| 1402 | |
| 1403 | BT_HIDDEN |
| 1404 | bt_component_class_message_iterator_next_method_status muxer_msg_iter_next( |
| 1405 | bt_self_message_iterator *self_msg_iter, |
| 1406 | bt_message_array_const msgs, uint64_t capacity, |
| 1407 | uint64_t *count) |
| 1408 | { |
| 1409 | bt_component_class_message_iterator_next_method_status status; |
| 1410 | struct muxer_msg_iter *muxer_msg_iter = |
| 1411 | bt_self_message_iterator_get_data(self_msg_iter); |
| 1412 | bt_self_component *self_comp = NULL; |
| 1413 | struct muxer_comp *muxer_comp = NULL; |
| 1414 | |
| 1415 | BT_ASSERT(muxer_msg_iter); |
| 1416 | self_comp = bt_self_message_iterator_borrow_component( |
| 1417 | self_msg_iter); |
| 1418 | BT_ASSERT(self_comp); |
| 1419 | muxer_comp = bt_self_component_get_data(self_comp); |
| 1420 | BT_ASSERT(muxer_comp); |
| 1421 | BT_COMP_LOGT("Muxer component's message iterator's \"next\" method called: " |
| 1422 | "comp-addr=%p, muxer-comp-addr=%p, muxer-msg-iter-addr=%p, " |
| 1423 | "msg-iter-addr=%p", |
| 1424 | self_comp, muxer_comp, muxer_msg_iter, self_msg_iter); |
| 1425 | |
| 1426 | status = muxer_msg_iter_do_next(muxer_comp, muxer_msg_iter, |
| 1427 | msgs, capacity, count); |
| 1428 | if (status < 0) { |
| 1429 | BT_COMP_LOGE("Cannot get next message: " |
| 1430 | "comp-addr=%p, muxer-comp-addr=%p, muxer-msg-iter-addr=%p, " |
| 1431 | "msg-iter-addr=%p, status=%s", |
| 1432 | self_comp, muxer_comp, muxer_msg_iter, self_msg_iter, |
| 1433 | bt_common_func_status_string(status)); |
| 1434 | } else { |
| 1435 | BT_COMP_LOGT("Returning from muxer component's message iterator's \"next\" method: " |
| 1436 | "status=%s", |
| 1437 | bt_common_func_status_string(status)); |
| 1438 | } |
| 1439 | |
| 1440 | return status; |
| 1441 | } |
| 1442 | |
| 1443 | BT_HIDDEN |
| 1444 | bt_component_class_port_connected_method_status muxer_input_port_connected( |
| 1445 | bt_self_component_filter *self_comp, |
| 1446 | bt_self_component_port_input *self_port, |
| 1447 | const bt_port_output *other_port) |
| 1448 | { |
| 1449 | bt_component_class_port_connected_method_status status = |
| 1450 | BT_COMPONENT_CLASS_PORT_CONNECTED_METHOD_STATUS_OK; |
| 1451 | bt_self_component_add_port_status add_port_status; |
| 1452 | struct muxer_comp *muxer_comp = bt_self_component_get_data( |
| 1453 | bt_self_component_filter_as_self_component(self_comp)); |
| 1454 | |
| 1455 | add_port_status = add_available_input_port(self_comp); |
| 1456 | if (add_port_status) { |
| 1457 | BT_COMP_LOGE("Cannot add one muxer component's input port: " |
| 1458 | "status=%s", |
| 1459 | bt_common_func_status_string(status)); |
| 1460 | |
| 1461 | if (add_port_status == |
| 1462 | BT_SELF_COMPONENT_ADD_PORT_STATUS_MEMORY_ERROR) { |
| 1463 | status = BT_COMPONENT_CLASS_PORT_CONNECTED_METHOD_STATUS_MEMORY_ERROR; |
| 1464 | } else { |
| 1465 | status = BT_COMPONENT_CLASS_PORT_CONNECTED_METHOD_STATUS_ERROR; |
| 1466 | } |
| 1467 | |
| 1468 | goto end; |
| 1469 | } |
| 1470 | |
| 1471 | end: |
| 1472 | return status; |
| 1473 | } |
| 1474 | |
| 1475 | static inline |
| 1476 | bt_bool muxer_upstream_msg_iters_can_all_seek_beginning( |
| 1477 | GPtrArray *muxer_upstream_msg_iters) |
| 1478 | { |
| 1479 | uint64_t i; |
| 1480 | bt_bool ret = BT_TRUE; |
| 1481 | |
| 1482 | for (i = 0; i < muxer_upstream_msg_iters->len; i++) { |
| 1483 | struct muxer_upstream_msg_iter *upstream_msg_iter = |
| 1484 | muxer_upstream_msg_iters->pdata[i]; |
| 1485 | |
| 1486 | if (!bt_self_component_port_input_message_iterator_can_seek_beginning( |
| 1487 | upstream_msg_iter->msg_iter)) { |
| 1488 | ret = BT_FALSE; |
| 1489 | goto end; |
| 1490 | } |
| 1491 | } |
| 1492 | |
| 1493 | end: |
| 1494 | return ret; |
| 1495 | } |
| 1496 | |
| 1497 | BT_HIDDEN |
| 1498 | bt_bool muxer_msg_iter_can_seek_beginning( |
| 1499 | bt_self_message_iterator *self_msg_iter) |
| 1500 | { |
| 1501 | struct muxer_msg_iter *muxer_msg_iter = |
| 1502 | bt_self_message_iterator_get_data(self_msg_iter); |
| 1503 | bt_bool ret = BT_TRUE; |
| 1504 | |
| 1505 | if (!muxer_upstream_msg_iters_can_all_seek_beginning( |
| 1506 | muxer_msg_iter->active_muxer_upstream_msg_iters)) { |
| 1507 | ret = BT_FALSE; |
| 1508 | goto end; |
| 1509 | } |
| 1510 | |
| 1511 | if (!muxer_upstream_msg_iters_can_all_seek_beginning( |
| 1512 | muxer_msg_iter->ended_muxer_upstream_msg_iters)) { |
| 1513 | ret = BT_FALSE; |
| 1514 | goto end; |
| 1515 | } |
| 1516 | |
| 1517 | end: |
| 1518 | return ret; |
| 1519 | } |
| 1520 | |
| 1521 | BT_HIDDEN |
| 1522 | bt_component_class_message_iterator_seek_beginning_method_status muxer_msg_iter_seek_beginning( |
| 1523 | bt_self_message_iterator *self_msg_iter) |
| 1524 | { |
| 1525 | struct muxer_msg_iter *muxer_msg_iter = |
| 1526 | bt_self_message_iterator_get_data(self_msg_iter); |
| 1527 | bt_component_class_message_iterator_seek_beginning_method_status status = |
| 1528 | BT_COMPONENT_CLASS_MESSAGE_ITERATOR_SEEK_BEGINNING_METHOD_STATUS_OK; |
| 1529 | bt_message_iterator_seek_beginning_status seek_beg_status; |
| 1530 | uint64_t i; |
| 1531 | |
| 1532 | /* Seek all ended upstream iterators first */ |
| 1533 | for (i = 0; i < muxer_msg_iter->ended_muxer_upstream_msg_iters->len; |
| 1534 | i++) { |
| 1535 | struct muxer_upstream_msg_iter *upstream_msg_iter = |
| 1536 | muxer_msg_iter->ended_muxer_upstream_msg_iters->pdata[i]; |
| 1537 | |
| 1538 | seek_beg_status = bt_self_component_port_input_message_iterator_seek_beginning( |
| 1539 | upstream_msg_iter->msg_iter); |
| 1540 | if (seek_beg_status != BT_MESSAGE_ITERATOR_SEEK_BEGINNING_STATUS_OK) { |
| 1541 | status = (int) seek_beg_status; |
| 1542 | goto end; |
| 1543 | } |
| 1544 | |
| 1545 | empty_message_queue(upstream_msg_iter); |
| 1546 | } |
| 1547 | |
| 1548 | /* Seek all previously active upstream iterators */ |
| 1549 | for (i = 0; i < muxer_msg_iter->active_muxer_upstream_msg_iters->len; |
| 1550 | i++) { |
| 1551 | struct muxer_upstream_msg_iter *upstream_msg_iter = |
| 1552 | muxer_msg_iter->active_muxer_upstream_msg_iters->pdata[i]; |
| 1553 | |
| 1554 | seek_beg_status = bt_self_component_port_input_message_iterator_seek_beginning( |
| 1555 | upstream_msg_iter->msg_iter); |
| 1556 | if (seek_beg_status != BT_MESSAGE_ITERATOR_SEEK_BEGINNING_STATUS_OK) { |
| 1557 | status = (int) seek_beg_status; |
| 1558 | goto end; |
| 1559 | } |
| 1560 | |
| 1561 | empty_message_queue(upstream_msg_iter); |
| 1562 | } |
| 1563 | |
| 1564 | /* Make them all active */ |
| 1565 | for (i = 0; i < muxer_msg_iter->ended_muxer_upstream_msg_iters->len; |
| 1566 | i++) { |
| 1567 | struct muxer_upstream_msg_iter *upstream_msg_iter = |
| 1568 | muxer_msg_iter->ended_muxer_upstream_msg_iters->pdata[i]; |
| 1569 | |
| 1570 | g_ptr_array_add(muxer_msg_iter->active_muxer_upstream_msg_iters, |
| 1571 | upstream_msg_iter); |
| 1572 | muxer_msg_iter->ended_muxer_upstream_msg_iters->pdata[i] = NULL; |
| 1573 | } |
| 1574 | |
| 1575 | /* |
| 1576 | * GLib < 2.48.0 asserts when g_ptr_array_remove_range() is |
| 1577 | * called on an empty array. |
| 1578 | */ |
| 1579 | if (muxer_msg_iter->ended_muxer_upstream_msg_iters->len > 0) { |
| 1580 | g_ptr_array_remove_range(muxer_msg_iter->ended_muxer_upstream_msg_iters, |
| 1581 | 0, muxer_msg_iter->ended_muxer_upstream_msg_iters->len); |
| 1582 | } |
| 1583 | muxer_msg_iter->last_returned_ts_ns = INT64_MIN; |
| 1584 | muxer_msg_iter->clock_class_expectation = |
| 1585 | MUXER_MSG_ITER_CLOCK_CLASS_EXPECTATION_ANY; |
| 1586 | |
| 1587 | end: |
| 1588 | return status; |
| 1589 | } |