| 1 | /* |
| 2 | * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com> |
| 3 | * Copyright 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com> |
| 4 | * |
| 5 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 6 | * of this software and associated documentation files (the "Software"), to deal |
| 7 | * in the Software without restriction, including without limitation the rights |
| 8 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| 9 | * copies of the Software, and to permit persons to whom the Software is |
| 10 | * furnished to do so, subject to the following conditions: |
| 11 | * |
| 12 | * The above copyright notice and this permission notice shall be included in |
| 13 | * all copies or substantial portions of the Software. |
| 14 | * |
| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 18 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 19 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 21 | * SOFTWARE. |
| 22 | */ |
| 23 | |
| 24 | #define BT_LOG_TAG "COMP" |
| 25 | #include <babeltrace/lib-logging-internal.h> |
| 26 | |
| 27 | #include <babeltrace/assert-internal.h> |
| 28 | #include <babeltrace/assert-pre-internal.h> |
| 29 | #include <babeltrace/graph/self-component.h> |
| 30 | #include <babeltrace/graph/component-const.h> |
| 31 | #include <babeltrace/graph/component-source-const.h> |
| 32 | #include <babeltrace/graph/component-filter-const.h> |
| 33 | #include <babeltrace/graph/component-sink-const.h> |
| 34 | #include <babeltrace/graph/component-internal.h> |
| 35 | #include <babeltrace/graph/component-class-internal.h> |
| 36 | #include <babeltrace/graph/component-source-internal.h> |
| 37 | #include <babeltrace/graph/component-filter-internal.h> |
| 38 | #include <babeltrace/graph/component-sink-internal.h> |
| 39 | #include <babeltrace/graph/connection-internal.h> |
| 40 | #include <babeltrace/graph/graph-internal.h> |
| 41 | #include <babeltrace/graph/message-iterator-internal.h> |
| 42 | #include <babeltrace/graph/port-internal.h> |
| 43 | #include <babeltrace/babeltrace-internal.h> |
| 44 | #include <babeltrace/compiler-internal.h> |
| 45 | #include <babeltrace/types.h> |
| 46 | #include <babeltrace/value.h> |
| 47 | #include <babeltrace/value-internal.h> |
| 48 | #include <stdint.h> |
| 49 | #include <inttypes.h> |
| 50 | |
| 51 | static |
| 52 | struct bt_component * (* const component_create_funcs[])( |
| 53 | const struct bt_component_class *) = { |
| 54 | [BT_COMPONENT_CLASS_TYPE_SOURCE] = bt_component_source_create, |
| 55 | [BT_COMPONENT_CLASS_TYPE_SINK] = bt_component_sink_create, |
| 56 | [BT_COMPONENT_CLASS_TYPE_FILTER] = bt_component_filter_create, |
| 57 | }; |
| 58 | |
| 59 | static |
| 60 | void (*component_destroy_funcs[])(struct bt_component *) = { |
| 61 | [BT_COMPONENT_CLASS_TYPE_SOURCE] = bt_component_source_destroy, |
| 62 | [BT_COMPONENT_CLASS_TYPE_SINK] = bt_component_sink_destroy, |
| 63 | [BT_COMPONENT_CLASS_TYPE_FILTER] = bt_component_filter_destroy, |
| 64 | }; |
| 65 | |
| 66 | static |
| 67 | void finalize_component(struct bt_component *comp) |
| 68 | { |
| 69 | typedef void (*method_t)(void *); |
| 70 | |
| 71 | method_t method = NULL; |
| 72 | |
| 73 | BT_ASSERT(comp); |
| 74 | |
| 75 | switch (comp->class->type) { |
| 76 | case BT_COMPONENT_CLASS_TYPE_SOURCE: |
| 77 | { |
| 78 | struct bt_component_class_source *src_cc = (void *) comp->class; |
| 79 | |
| 80 | method = (method_t) src_cc->methods.finalize; |
| 81 | break; |
| 82 | } |
| 83 | case BT_COMPONENT_CLASS_TYPE_FILTER: |
| 84 | { |
| 85 | struct bt_component_class_filter *flt_cc = (void *) comp->class; |
| 86 | |
| 87 | method = (method_t) flt_cc->methods.finalize; |
| 88 | break; |
| 89 | } |
| 90 | case BT_COMPONENT_CLASS_TYPE_SINK: |
| 91 | { |
| 92 | struct bt_component_class_sink *sink_cc = (void *) comp->class; |
| 93 | |
| 94 | method = (method_t) sink_cc->methods.finalize; |
| 95 | break; |
| 96 | } |
| 97 | default: |
| 98 | abort(); |
| 99 | } |
| 100 | |
| 101 | if (method) { |
| 102 | BT_LIB_LOGD("Calling user's finalization method: " |
| 103 | "%![comp-]+c", comp); |
| 104 | method(comp); |
| 105 | } |
| 106 | } |
| 107 | |
| 108 | static |
| 109 | void destroy_component(struct bt_object *obj) |
| 110 | { |
| 111 | struct bt_component *component = NULL; |
| 112 | int i; |
| 113 | |
| 114 | if (!obj) { |
| 115 | return; |
| 116 | } |
| 117 | |
| 118 | /* |
| 119 | * The component's reference count is 0 if we're here. Increment |
| 120 | * it to avoid a double-destroy (possibly infinitely recursive). |
| 121 | * This could happen for example if the component's finalization |
| 122 | * function does bt_object_get_ref() (or anything that causes |
| 123 | * bt_object_get_ref() to be called) on itself (ref. count goes |
| 124 | * from 0 to 1), and then bt_object_put_ref(): the reference |
| 125 | * count would go from 1 to 0 again and this function would be |
| 126 | * called again. |
| 127 | */ |
| 128 | obj->ref_count++; |
| 129 | component = container_of(obj, struct bt_component, base); |
| 130 | BT_LIB_LOGD("Destroying component: %![comp-]+c, %![graph-]+g", |
| 131 | component, bt_component_borrow_graph(component)); |
| 132 | |
| 133 | /* Call destroy listeners in reverse registration order */ |
| 134 | BT_LOGD_STR("Calling destroy listeners."); |
| 135 | |
| 136 | for (i = component->destroy_listeners->len - 1; i >= 0; i--) { |
| 137 | struct bt_component_destroy_listener *listener = |
| 138 | &g_array_index(component->destroy_listeners, |
| 139 | struct bt_component_destroy_listener, i); |
| 140 | |
| 141 | listener->func(component, listener->data); |
| 142 | } |
| 143 | |
| 144 | /* |
| 145 | * User data is destroyed first, followed by the concrete |
| 146 | * component instance. Do not finalize if the component's user |
| 147 | * initialization method failed in the first place. |
| 148 | */ |
| 149 | if (component->initialized) { |
| 150 | finalize_component(component); |
| 151 | } |
| 152 | |
| 153 | if (component->destroy) { |
| 154 | BT_LOGD_STR("Destroying type-specific data."); |
| 155 | component->destroy(component); |
| 156 | } |
| 157 | |
| 158 | if (component->input_ports) { |
| 159 | BT_LOGD_STR("Destroying input ports."); |
| 160 | g_ptr_array_free(component->input_ports, TRUE); |
| 161 | component->input_ports = NULL; |
| 162 | } |
| 163 | |
| 164 | if (component->output_ports) { |
| 165 | BT_LOGD_STR("Destroying output ports."); |
| 166 | g_ptr_array_free(component->output_ports, TRUE); |
| 167 | component->output_ports = NULL; |
| 168 | } |
| 169 | |
| 170 | if (component->destroy_listeners) { |
| 171 | g_array_free(component->destroy_listeners, TRUE); |
| 172 | component->destroy_listeners = NULL; |
| 173 | } |
| 174 | |
| 175 | if (component->name) { |
| 176 | g_string_free(component->name, TRUE); |
| 177 | component->name = NULL; |
| 178 | } |
| 179 | |
| 180 | BT_LOGD_STR("Putting component class."); |
| 181 | BT_OBJECT_PUT_REF_AND_RESET(component->class); |
| 182 | g_free(component); |
| 183 | } |
| 184 | |
| 185 | enum bt_component_class_type bt_component_get_class_type( |
| 186 | const struct bt_component *component) |
| 187 | { |
| 188 | BT_ASSERT_PRE_NON_NULL(component, "Component"); |
| 189 | return component->class->type; |
| 190 | } |
| 191 | |
| 192 | static |
| 193 | struct bt_port *add_port( |
| 194 | struct bt_component *component, GPtrArray *ports, |
| 195 | enum bt_port_type port_type, const char *name, void *user_data) |
| 196 | { |
| 197 | struct bt_port *new_port = NULL; |
| 198 | struct bt_graph *graph = NULL; |
| 199 | |
| 200 | BT_ASSERT_PRE_NON_NULL(component, "Component"); |
| 201 | BT_ASSERT_PRE_NON_NULL(name, "Name"); |
| 202 | BT_ASSERT_PRE(strlen(name) > 0, "Name is empty"); |
| 203 | graph = bt_component_borrow_graph(component); |
| 204 | BT_ASSERT_PRE(graph && !bt_graph_is_canceled(graph), |
| 205 | "Component's graph is canceled: %![comp-]+c, %![graph-]+g", |
| 206 | component, graph); |
| 207 | BT_ASSERT_PRE( |
| 208 | graph->config_state == BT_GRAPH_CONFIGURATION_STATE_CONFIGURING, |
| 209 | "Component's graph is already configured: " |
| 210 | "%![comp-]+c, %![graph-]+g", component, graph); |
| 211 | |
| 212 | // TODO: Validate that the name is not already used. |
| 213 | |
| 214 | BT_LIB_LOGD("Adding port to component: %![comp-]+c, " |
| 215 | "port-type=%s, port-name=\"%s\"", component, |
| 216 | bt_port_type_string(port_type), name); |
| 217 | |
| 218 | new_port = bt_port_create(component, port_type, name, user_data); |
| 219 | if (!new_port) { |
| 220 | BT_LOGE_STR("Cannot create port object."); |
| 221 | goto end; |
| 222 | } |
| 223 | |
| 224 | /* |
| 225 | * No name clash, add the port. |
| 226 | * The component is now the port's parent; it should _not_ |
| 227 | * hold a reference to the port since the port's lifetime |
| 228 | * is now protected by the component's own lifetime. |
| 229 | */ |
| 230 | g_ptr_array_add(ports, new_port); |
| 231 | |
| 232 | /* |
| 233 | * Notify the graph's creator that a new port was added. |
| 234 | */ |
| 235 | bt_object_get_ref(bt_component_borrow_graph(component)); |
| 236 | graph = bt_component_borrow_graph(component); |
| 237 | if (graph) { |
| 238 | bt_graph_notify_port_added(graph, new_port); |
| 239 | BT_OBJECT_PUT_REF_AND_RESET(graph); |
| 240 | } |
| 241 | |
| 242 | BT_LIB_LOGD("Created and added port to component: " |
| 243 | "%![comp-]+c, %![port-]+p", component, new_port); |
| 244 | |
| 245 | end: |
| 246 | return new_port; |
| 247 | } |
| 248 | |
| 249 | BT_HIDDEN |
| 250 | uint64_t bt_component_get_input_port_count(const struct bt_component *comp) |
| 251 | { |
| 252 | BT_ASSERT_PRE_NON_NULL(comp, "Component"); |
| 253 | return (uint64_t) comp->input_ports->len; |
| 254 | } |
| 255 | |
| 256 | BT_HIDDEN |
| 257 | uint64_t bt_component_get_output_port_count(const struct bt_component *comp) |
| 258 | { |
| 259 | BT_ASSERT_PRE_NON_NULL(comp, "Component"); |
| 260 | return (uint64_t) comp->output_ports->len; |
| 261 | } |
| 262 | |
| 263 | BT_HIDDEN |
| 264 | int bt_component_create(struct bt_component_class *component_class, |
| 265 | const char *name, struct bt_component **user_component) |
| 266 | { |
| 267 | int ret = 0; |
| 268 | struct bt_component *component = NULL; |
| 269 | enum bt_component_class_type type; |
| 270 | |
| 271 | BT_ASSERT(user_component); |
| 272 | BT_ASSERT(component_class); |
| 273 | BT_ASSERT(name); |
| 274 | type = bt_component_class_get_type(component_class); |
| 275 | BT_LIB_LOGD("Creating empty component from component class: %![cc-]+C, " |
| 276 | "comp-name=\"%s\"", component_class, name); |
| 277 | component = component_create_funcs[type](component_class); |
| 278 | if (!component) { |
| 279 | BT_LOGE_STR("Cannot create specific component object."); |
| 280 | ret = -1; |
| 281 | goto end; |
| 282 | } |
| 283 | |
| 284 | bt_object_init_shared_with_parent(&component->base, destroy_component); |
| 285 | component->class = component_class; |
| 286 | bt_object_get_no_null_check(component->class); |
| 287 | component->destroy = component_destroy_funcs[type]; |
| 288 | component->name = g_string_new(name); |
| 289 | if (!component->name) { |
| 290 | BT_LOGE_STR("Failed to allocate one GString."); |
| 291 | ret = -1; |
| 292 | goto end; |
| 293 | } |
| 294 | |
| 295 | component->input_ports = g_ptr_array_new_with_free_func( |
| 296 | (GDestroyNotify) bt_object_try_spec_release); |
| 297 | if (!component->input_ports) { |
| 298 | BT_LOGE_STR("Failed to allocate one GPtrArray."); |
| 299 | ret = -1; |
| 300 | goto end; |
| 301 | } |
| 302 | |
| 303 | component->output_ports = g_ptr_array_new_with_free_func( |
| 304 | (GDestroyNotify) bt_object_try_spec_release); |
| 305 | if (!component->output_ports) { |
| 306 | BT_LOGE_STR("Failed to allocate one GPtrArray."); |
| 307 | ret = -1; |
| 308 | goto end; |
| 309 | } |
| 310 | |
| 311 | component->destroy_listeners = g_array_new(FALSE, TRUE, |
| 312 | sizeof(struct bt_component_destroy_listener)); |
| 313 | if (!component->destroy_listeners) { |
| 314 | BT_LOGE_STR("Failed to allocate one GArray."); |
| 315 | ret = -1; |
| 316 | goto end; |
| 317 | } |
| 318 | |
| 319 | BT_LIB_LOGD("Created empty component from component class: " |
| 320 | "%![cc-]+C, %![comp-]+c", component_class, component); |
| 321 | BT_OBJECT_MOVE_REF(*user_component, component); |
| 322 | |
| 323 | end: |
| 324 | bt_object_put_ref(component); |
| 325 | return ret; |
| 326 | } |
| 327 | |
| 328 | const char *bt_component_get_name(const struct bt_component *component) |
| 329 | { |
| 330 | BT_ASSERT_PRE_NON_NULL(component, "Component"); |
| 331 | return component->name->str; |
| 332 | } |
| 333 | |
| 334 | const struct bt_component_class *bt_component_borrow_class_const( |
| 335 | const struct bt_component *component) |
| 336 | { |
| 337 | BT_ASSERT_PRE_NON_NULL(component, "Component"); |
| 338 | return component->class; |
| 339 | } |
| 340 | |
| 341 | void *bt_self_component_get_data(const struct bt_self_component *self_comp) |
| 342 | { |
| 343 | struct bt_component *component = (void *) self_comp; |
| 344 | |
| 345 | BT_ASSERT_PRE_NON_NULL(component, "Component"); |
| 346 | return component->user_data; |
| 347 | } |
| 348 | |
| 349 | void bt_self_component_set_data(struct bt_self_component *self_comp, |
| 350 | void *data) |
| 351 | { |
| 352 | struct bt_component *component = (void *) self_comp; |
| 353 | |
| 354 | BT_ASSERT_PRE_NON_NULL(component, "Component"); |
| 355 | component->user_data = data; |
| 356 | BT_LIB_LOGV("Set component's user data: %!+c", component); |
| 357 | } |
| 358 | |
| 359 | BT_HIDDEN |
| 360 | void bt_component_set_graph(struct bt_component *component, |
| 361 | struct bt_graph *graph) |
| 362 | { |
| 363 | bt_object_set_parent(&component->base, |
| 364 | graph ? &graph->base : NULL); |
| 365 | } |
| 366 | |
| 367 | bt_bool bt_component_graph_is_canceled(const struct bt_component *component) |
| 368 | { |
| 369 | return bt_graph_is_canceled( |
| 370 | (void *) bt_object_borrow_parent(&component->base)); |
| 371 | } |
| 372 | |
| 373 | static |
| 374 | struct bt_port *borrow_port_by_name(GPtrArray *ports, |
| 375 | const char *name) |
| 376 | { |
| 377 | uint64_t i; |
| 378 | struct bt_port *ret_port = NULL; |
| 379 | |
| 380 | BT_ASSERT(name); |
| 381 | |
| 382 | for (i = 0; i < ports->len; i++) { |
| 383 | struct bt_port *port = g_ptr_array_index(ports, i); |
| 384 | |
| 385 | if (!strcmp(name, port->name->str)) { |
| 386 | ret_port = port; |
| 387 | break; |
| 388 | } |
| 389 | } |
| 390 | |
| 391 | return ret_port; |
| 392 | } |
| 393 | |
| 394 | BT_HIDDEN |
| 395 | struct bt_port_input *bt_component_borrow_input_port_by_name( |
| 396 | struct bt_component *comp, const char *name) |
| 397 | { |
| 398 | BT_ASSERT(comp); |
| 399 | return (void *) borrow_port_by_name(comp->input_ports, name); |
| 400 | } |
| 401 | |
| 402 | BT_HIDDEN |
| 403 | struct bt_port_output *bt_component_borrow_output_port_by_name( |
| 404 | struct bt_component *comp, const char *name) |
| 405 | { |
| 406 | BT_ASSERT_PRE_NON_NULL(comp, "Component"); |
| 407 | return (void *) |
| 408 | borrow_port_by_name(comp->output_ports, name); |
| 409 | } |
| 410 | |
| 411 | static |
| 412 | struct bt_port *borrow_port_by_index(GPtrArray *ports, uint64_t index) |
| 413 | { |
| 414 | BT_ASSERT(index < ports->len); |
| 415 | return g_ptr_array_index(ports, index); |
| 416 | } |
| 417 | |
| 418 | BT_HIDDEN |
| 419 | struct bt_port_input *bt_component_borrow_input_port_by_index( |
| 420 | struct bt_component *comp, uint64_t index) |
| 421 | { |
| 422 | BT_ASSERT_PRE_NON_NULL(comp, "Component"); |
| 423 | BT_ASSERT_PRE_VALID_INDEX(index, comp->input_ports->len); |
| 424 | return (void *) |
| 425 | borrow_port_by_index(comp->input_ports, index); |
| 426 | } |
| 427 | |
| 428 | BT_HIDDEN |
| 429 | struct bt_port_output *bt_component_borrow_output_port_by_index( |
| 430 | struct bt_component *comp, uint64_t index) |
| 431 | { |
| 432 | BT_ASSERT_PRE_NON_NULL(comp, "Component"); |
| 433 | BT_ASSERT_PRE_VALID_INDEX(index, comp->output_ports->len); |
| 434 | return (void *) |
| 435 | borrow_port_by_index(comp->output_ports, index); |
| 436 | } |
| 437 | |
| 438 | BT_HIDDEN |
| 439 | struct bt_port_input *bt_component_add_input_port( |
| 440 | struct bt_component *component, const char *name, |
| 441 | void *user_data) |
| 442 | { |
| 443 | /* add_port() logs details */ |
| 444 | return (void *) |
| 445 | add_port(component, component->input_ports, |
| 446 | BT_PORT_TYPE_INPUT, name, user_data); |
| 447 | } |
| 448 | |
| 449 | BT_HIDDEN |
| 450 | struct bt_port_output *bt_component_add_output_port( |
| 451 | struct bt_component *component, const char *name, |
| 452 | void *user_data) |
| 453 | { |
| 454 | /* add_port() logs details */ |
| 455 | return (void *) |
| 456 | add_port(component, component->output_ports, |
| 457 | BT_PORT_TYPE_OUTPUT, name, user_data); |
| 458 | } |
| 459 | |
| 460 | BT_HIDDEN |
| 461 | enum bt_self_component_status bt_component_accept_port_connection( |
| 462 | struct bt_component *comp, struct bt_port *self_port, |
| 463 | struct bt_port *other_port) |
| 464 | { |
| 465 | typedef enum bt_self_component_status (*method_t)( |
| 466 | void *, void *, const void *); |
| 467 | |
| 468 | enum bt_self_component_status status = BT_SELF_COMPONENT_STATUS_OK; |
| 469 | method_t method = NULL; |
| 470 | |
| 471 | BT_ASSERT(comp); |
| 472 | BT_ASSERT(self_port); |
| 473 | BT_ASSERT(other_port); |
| 474 | |
| 475 | switch (comp->class->type) { |
| 476 | case BT_COMPONENT_CLASS_TYPE_SOURCE: |
| 477 | { |
| 478 | struct bt_component_class_source *src_cc = (void *) comp->class; |
| 479 | |
| 480 | switch (self_port->type) { |
| 481 | case BT_PORT_TYPE_OUTPUT: |
| 482 | method = (method_t) src_cc->methods.accept_output_port_connection; |
| 483 | break; |
| 484 | default: |
| 485 | abort(); |
| 486 | } |
| 487 | |
| 488 | break; |
| 489 | } |
| 490 | case BT_COMPONENT_CLASS_TYPE_FILTER: |
| 491 | { |
| 492 | struct bt_component_class_filter *flt_cc = (void *) comp->class; |
| 493 | |
| 494 | switch (self_port->type) { |
| 495 | case BT_PORT_TYPE_INPUT: |
| 496 | method = (method_t) flt_cc->methods.accept_input_port_connection; |
| 497 | break; |
| 498 | case BT_PORT_TYPE_OUTPUT: |
| 499 | method = (method_t) flt_cc->methods.accept_output_port_connection; |
| 500 | break; |
| 501 | default: |
| 502 | abort(); |
| 503 | } |
| 504 | |
| 505 | break; |
| 506 | } |
| 507 | case BT_COMPONENT_CLASS_TYPE_SINK: |
| 508 | { |
| 509 | struct bt_component_class_sink *sink_cc = (void *) comp->class; |
| 510 | |
| 511 | switch (self_port->type) { |
| 512 | case BT_PORT_TYPE_INPUT: |
| 513 | method = (method_t) sink_cc->methods.accept_input_port_connection; |
| 514 | break; |
| 515 | default: |
| 516 | abort(); |
| 517 | } |
| 518 | |
| 519 | break; |
| 520 | } |
| 521 | default: |
| 522 | abort(); |
| 523 | } |
| 524 | |
| 525 | if (method) { |
| 526 | BT_LIB_LOGD("Calling user's \"accept port connection\" method: " |
| 527 | "%![comp-]+c, %![self-port-]+p, %![other-port-]+p", |
| 528 | comp, self_port, other_port); |
| 529 | status = method(comp, self_port, (void *) other_port); |
| 530 | BT_LOGD("User method returned: status=%s", |
| 531 | bt_self_component_status_string(status)); |
| 532 | } |
| 533 | |
| 534 | return status; |
| 535 | } |
| 536 | |
| 537 | BT_HIDDEN |
| 538 | enum bt_self_component_status bt_component_port_connected( |
| 539 | struct bt_component *comp, struct bt_port *self_port, |
| 540 | struct bt_port *other_port) |
| 541 | { |
| 542 | typedef enum bt_self_component_status (*method_t)( |
| 543 | void *, void *, const void *); |
| 544 | |
| 545 | enum bt_self_component_status status = BT_SELF_COMPONENT_STATUS_OK; |
| 546 | method_t method = NULL; |
| 547 | |
| 548 | BT_ASSERT(comp); |
| 549 | BT_ASSERT(self_port); |
| 550 | BT_ASSERT(other_port); |
| 551 | |
| 552 | switch (comp->class->type) { |
| 553 | case BT_COMPONENT_CLASS_TYPE_SOURCE: |
| 554 | { |
| 555 | struct bt_component_class_source *src_cc = (void *) comp->class; |
| 556 | |
| 557 | switch (self_port->type) { |
| 558 | case BT_PORT_TYPE_OUTPUT: |
| 559 | method = (method_t) src_cc->methods.output_port_connected; |
| 560 | break; |
| 561 | default: |
| 562 | abort(); |
| 563 | } |
| 564 | |
| 565 | break; |
| 566 | } |
| 567 | case BT_COMPONENT_CLASS_TYPE_FILTER: |
| 568 | { |
| 569 | struct bt_component_class_filter *flt_cc = (void *) comp->class; |
| 570 | |
| 571 | switch (self_port->type) { |
| 572 | case BT_PORT_TYPE_INPUT: |
| 573 | method = (method_t) flt_cc->methods.input_port_connected; |
| 574 | break; |
| 575 | case BT_PORT_TYPE_OUTPUT: |
| 576 | method = (method_t) flt_cc->methods.output_port_connected; |
| 577 | break; |
| 578 | default: |
| 579 | abort(); |
| 580 | } |
| 581 | |
| 582 | break; |
| 583 | } |
| 584 | case BT_COMPONENT_CLASS_TYPE_SINK: |
| 585 | { |
| 586 | struct bt_component_class_sink *sink_cc = (void *) comp->class; |
| 587 | |
| 588 | switch (self_port->type) { |
| 589 | case BT_PORT_TYPE_INPUT: |
| 590 | method = (method_t) sink_cc->methods.input_port_connected; |
| 591 | break; |
| 592 | default: |
| 593 | abort(); |
| 594 | } |
| 595 | |
| 596 | break; |
| 597 | } |
| 598 | default: |
| 599 | abort(); |
| 600 | } |
| 601 | |
| 602 | if (method) { |
| 603 | BT_LIB_LOGD("Calling user's \"port connected\" method: " |
| 604 | "%![comp-]+c, %![self-port-]+p, %![other-port-]+p", |
| 605 | comp, self_port, other_port); |
| 606 | status = method(comp, self_port, (void *) other_port); |
| 607 | BT_LOGD("User method returned: status=%s", |
| 608 | bt_self_component_status_string(status)); |
| 609 | BT_ASSERT_PRE(status == BT_SELF_COMPONENT_STATUS_OK || |
| 610 | status == BT_SELF_COMPONENT_STATUS_ERROR || |
| 611 | status == BT_SELF_COMPONENT_STATUS_NOMEM, |
| 612 | "Unexpected returned component status: status=%s", |
| 613 | bt_self_component_status_string(status)); |
| 614 | } |
| 615 | |
| 616 | return status; |
| 617 | } |
| 618 | |
| 619 | BT_HIDDEN |
| 620 | void bt_component_add_destroy_listener(struct bt_component *component, |
| 621 | bt_component_destroy_listener_func func, void *data) |
| 622 | { |
| 623 | struct bt_component_destroy_listener listener; |
| 624 | |
| 625 | BT_ASSERT(component); |
| 626 | BT_ASSERT(func); |
| 627 | listener.func = func; |
| 628 | listener.data = data; |
| 629 | g_array_append_val(component->destroy_listeners, listener); |
| 630 | BT_LIB_LOGV("Added destroy listener: %![comp-]+c, " |
| 631 | "func-addr=%p, data-addr=%p", |
| 632 | component, func, data); |
| 633 | } |
| 634 | |
| 635 | BT_HIDDEN |
| 636 | void bt_component_remove_destroy_listener(struct bt_component *component, |
| 637 | bt_component_destroy_listener_func func, void *data) |
| 638 | { |
| 639 | uint64_t i; |
| 640 | |
| 641 | BT_ASSERT(component); |
| 642 | BT_ASSERT(func); |
| 643 | |
| 644 | for (i = 0; i < component->destroy_listeners->len; i++) { |
| 645 | struct bt_component_destroy_listener *listener = |
| 646 | &g_array_index(component->destroy_listeners, |
| 647 | struct bt_component_destroy_listener, i); |
| 648 | |
| 649 | if (listener->func == func && listener->data == data) { |
| 650 | g_array_remove_index(component->destroy_listeners, i); |
| 651 | i--; |
| 652 | BT_LIB_LOGV("Removed destroy listener: %![comp-]+c, " |
| 653 | "func-addr=%p, data-addr=%p", |
| 654 | component, func, data); |
| 655 | } |
| 656 | } |
| 657 | } |
| 658 | |
| 659 | void bt_component_get_ref(const struct bt_component *component) |
| 660 | { |
| 661 | bt_object_get_ref(component); |
| 662 | } |
| 663 | |
| 664 | void bt_component_put_ref(const struct bt_component *component) |
| 665 | { |
| 666 | bt_object_put_ref(component); |
| 667 | } |