lib/graph/component.c

   1 /*
   2  * component.c
   3  *
   4  * Babeltrace Plugin Component
   5  *
   6  * Copyright 2015 Jérémie Galarneau <jeremie.galarneau@efficios.com>
   7  *
   8  * Author: Jérémie Galarneau <jeremie.galarneau@efficios.com>
   9  *
  10  * Permission is hereby granted, free of charge, to any person obtaining a copy
  11  * of this software and associated documentation files (the "Software"), to deal
  12  * in the Software without restriction, including without limitation the rights
  13  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  14  * copies of the Software, and to permit persons to whom the Software is
  15  * furnished to do so, subject to the following conditions:
  16  *
  17  * The above copyright notice and this permission notice shall be included in
  18  * all copies or substantial portions of the Software.
  19  *
  20  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  21  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  23  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  24  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  25  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  26  * SOFTWARE.
  27  */
  28
  29 #define BT_LOG_TAG "COMP"
  30 #include <babeltrace/lib-logging-internal.h>
  31
  32 #include <babeltrace/graph/private-component.h>
  33 #include <babeltrace/graph/component.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/private-connection.h>
  40 #include <babeltrace/graph/connection-internal.h>
  41 #include <babeltrace/graph/graph-internal.h>
  42 #include <babeltrace/graph/notification-iterator-internal.h>
  43 #include <babeltrace/graph/private-notification-iterator.h>
  44 #include <babeltrace/babeltrace-internal.h>
  45 #include <babeltrace/compiler-internal.h>
  46 #include <babeltrace/ref.h>
  47 #include <babeltrace/types.h>
  48 #include <babeltrace/values.h>
  49 #include <babeltrace/values-internal.h>
  50 #include <stdint.h>
  51 #include <inttypes.h>
  52
  53 static
  54 struct bt_component * (* const component_create_funcs[])(
  55                 struct bt_component_class *) = {
  56         [BT_COMPONENT_CLASS_TYPE_SOURCE] = bt_component_source_create,
  57         [BT_COMPONENT_CLASS_TYPE_SINK] = bt_component_sink_create,
  58         [BT_COMPONENT_CLASS_TYPE_FILTER] = bt_component_filter_create,
  59 };
  60
  61 static
  62 void (*component_destroy_funcs[])(struct bt_component *) = {
  63         [BT_COMPONENT_CLASS_TYPE_SOURCE] = bt_component_source_destroy,
  64         [BT_COMPONENT_CLASS_TYPE_SINK] = bt_component_sink_destroy,
  65         [BT_COMPONENT_CLASS_TYPE_FILTER] = bt_component_filter_destroy,
  66 };
  67
  68 static
  69 void bt_component_destroy(struct bt_object *obj)
  70 {
  71         struct bt_component *component = NULL;
  72         struct bt_component_class *component_class = NULL;
  73         int i;
  74
  75         if (!obj) {
  76                 return;
  77         }
  78
  79         /*
  80          * The component's reference count is 0 if we're here. Increment
  81          * it to avoid a double-destroy (possibly infinitely recursive).
  82          * This could happen for example if the component's finalization
  83          * function does bt_get() (or anything that causes bt_get() to
  84          * be called) on itself (ref. count goes from 0 to 1), and then
  85          * bt_put(): the reference count would go from 1 to 0 again and
  86          * this function would be called again.
  87          */
  88         obj->ref_count.count++;
  89         component = container_of(obj, struct bt_component, base);
  90         BT_LOGD("Destroying component: addr=%p, name=\"%s\", graph-addr=%p",
  91                 component, bt_component_get_name(component),
  92                 obj->parent);
  93
  94         /* Call destroy listeners in reverse registration order */
  95         BT_LOGD_STR("Calling destroy listeners.");
  96
  97         for (i = component->destroy_listeners->len - 1; i >= 0; i--) {
  98                 struct bt_component_destroy_listener *listener =
  99                         &g_array_index(component->destroy_listeners,
 100                                 struct bt_component_destroy_listener, i);
 101
 102                 listener->func(component, listener->data);
 103         }
 104
 105         component_class = component->class;
 106
 107         /*
 108          * User data is destroyed first, followed by the concrete
 109          * component instance. Do not finalize if the component's user
 110          * initialization method failed in the first place.
 111          */
 112         if (component->initialized && component->class->methods.finalize) {
 113                 BT_LOGD_STR("Calling user's finalization method.");
 114                 component->class->methods.finalize(
 115                         bt_private_component_from_component(component));
 116         }
 117
 118         if (component->destroy) {
 119                 BT_LOGD_STR("Destroying type-specific data.");
 120                 component->destroy(component);
 121         }
 122
 123         if (component->input_ports) {
 124                 BT_LOGD_STR("Destroying input ports.");
 125                 g_ptr_array_free(component->input_ports, TRUE);
 126         }
 127
 128         if (component->output_ports) {
 129                 BT_LOGD_STR("Destroying output ports.");
 130                 g_ptr_array_free(component->output_ports, TRUE);
 131         }
 132
 133         if (component->destroy_listeners) {
 134                 g_array_free(component->destroy_listeners, TRUE);
 135         }
 136
 137         if (component->name) {
 138                 g_string_free(component->name, TRUE);
 139         }
 140
 141         BT_LOGD("Putting component class.");
 142         bt_put(component_class);
 143         g_free(component);
 144 }
 145
 146 struct bt_component *bt_component_from_private_component(
 147                 struct bt_private_component *private_component)
 148 {
 149         return bt_get(bt_component_from_private(private_component));
 150 }
 151
 152 enum bt_component_class_type bt_component_get_class_type(
 153                 struct bt_component *component)
 154 {
 155         return component ? component->class->type : BT_COMPONENT_CLASS_TYPE_UNKNOWN;
 156 }
 157
 158 static
 159 struct bt_port *bt_component_add_port(
 160                 struct bt_component *component, GPtrArray *ports,
 161                 enum bt_port_type port_type, const char *name, void *user_data)
 162 {
 163         size_t i;
 164         struct bt_port *new_port = NULL;
 165         struct bt_graph *graph = NULL;
 166
 167         if (!name) {
 168                 BT_LOGW_STR("Invalid parameter: name is NULL.");
 169                 goto end;
 170         }
 171
 172         if (strlen(name) == 0) {
 173                 BT_LOGW_STR("Invalid parameter: name is an empty string.");
 174                 goto end;
 175         }
 176
 177         BT_LOGD("Adding port to component: comp-addr=%p, comp-name=\"%s\", "
 178                 "port-type=%s, port-name=\"%s\"", component,
 179                 bt_component_get_name(component),
 180                 bt_port_type_string(port_type), name);
 181
 182         /* Look for a port having the same name. */
 183         for (i = 0; i < ports->len; i++) {
 184                 const char *port_name;
 185                 struct bt_port *port = g_ptr_array_index(ports, i);
 186
 187                 port_name = bt_port_get_name(port);
 188                 assert(port_name);
 189
 190                 if (!strcmp(name, port_name)) {
 191                         /* Port name clash, abort. */
 192                         BT_LOGW("Invalid parameter: another port with the same name already exists in the component: "
 193                                 "other-port-addr=%p", port);
 194                         goto end;
 195                 }
 196         }
 197
 198         new_port = bt_port_create(component, port_type, name, user_data);
 199         if (!new_port) {
 200                 BT_LOGE("Cannot create port object.");
 201                 goto end;
 202         }
 203
 204         /*
 205          * No name clash, add the port.
 206          * The component is now the port's parent; it should _not_
 207          * hold a reference to the port since the port's lifetime
 208          * is now protected by the component's own lifetime.
 209          */
 210         g_ptr_array_add(ports, new_port);
 211
 212         /*
 213          * Notify the graph's creator that a new port was added.
 214          */
 215         graph = bt_component_get_graph(component);
 216         if (graph) {
 217                 bt_graph_notify_port_added(graph, new_port);
 218                 BT_PUT(graph);
 219         }
 220
 221         BT_LOGD("Created and added port to component: comp-addr=%p, comp-name=\"%s\", "
 222                 "port-type=%s, port-name=\"%s\", port-addr=%p", component,
 223                 bt_component_get_name(component),
 224                 bt_port_type_string(port_type), name, new_port);
 225
 226 end:
 227         return new_port;
 228 }
 229
 230 BT_HIDDEN
 231 int64_t bt_component_get_input_port_count(struct bt_component *comp)
 232 {
 233         assert(comp);
 234         return (int64_t) comp->input_ports->len;
 235 }
 236
 237 BT_HIDDEN
 238 int64_t bt_component_get_output_port_count(struct bt_component *comp)
 239 {
 240         assert(comp);
 241         return (int64_t) comp->output_ports->len;
 242 }
 243
 244 enum bt_component_status bt_component_create(
 245                 struct bt_component_class *component_class,
 246                 const char *name, struct bt_component **user_component)
 247 {
 248         enum bt_component_status status = BT_COMPONENT_STATUS_OK;
 249         struct bt_component *component = NULL;
 250         enum bt_component_class_type type;
 251
 252         assert(user_component);
 253         assert(component_class);
 254         assert(name);
 255
 256         type = bt_component_class_get_type(component_class);
 257         BT_LOGD("Creating empty component from component class: "
 258                 "comp-cls-addr=%p, comp-cls-type=%s, name=\"%s\"",
 259                 component_class, bt_component_class_type_string(type), name);
 260         component = component_create_funcs[type](component_class);
 261         if (!component) {
 262                 BT_LOGE_STR("Cannot create specific component object.");
 263                 status = BT_COMPONENT_STATUS_NOMEM;
 264                 goto end;
 265         }
 266
 267         bt_object_init(component, bt_component_destroy);
 268         component->class = bt_get(component_class);
 269         component->destroy = component_destroy_funcs[type];
 270         component->name = g_string_new(name);
 271         if (!component->name) {
 272                 BT_LOGE_STR("Failed to allocate one GString.");
 273                 status = BT_COMPONENT_STATUS_NOMEM;
 274                 goto end;
 275         }
 276
 277         component->input_ports = g_ptr_array_new_with_free_func(
 278                 bt_object_release);
 279         if (!component->input_ports) {
 280                 BT_LOGE_STR("Failed to allocate one GPtrArray.");
 281                 status = BT_COMPONENT_STATUS_NOMEM;
 282                 goto end;
 283         }
 284
 285         component->output_ports = g_ptr_array_new_with_free_func(
 286                 bt_object_release);
 287         if (!component->output_ports) {
 288                 BT_LOGE_STR("Failed to allocate one GPtrArray.");
 289                 status = BT_COMPONENT_STATUS_NOMEM;
 290                 goto end;
 291         }
 292
 293         component->destroy_listeners = g_array_new(FALSE, TRUE,
 294                 sizeof(struct bt_component_destroy_listener));
 295         if (!component->destroy_listeners) {
 296                 BT_LOGE_STR("Failed to allocate one GArray.");
 297                 status = BT_COMPONENT_STATUS_NOMEM;
 298                 goto end;
 299         }
 300
 301         BT_LOGD("Created empty component from component class: "
 302                 "comp-cls-addr=%p, comp-cls-type=%s, name=\"%s\", comp-addr=%p",
 303                 component_class, bt_component_class_type_string(type), name,
 304                 component);
 305         BT_MOVE(*user_component, component);
 306
 307 end:
 308         bt_put(component);
 309         return status;
 310 }
 311
 312 const char *bt_component_get_name(struct bt_component *component)
 313 {
 314         const char *ret = NULL;
 315
 316         if (!component) {
 317                 BT_LOGW_STR("Invalid parameter: component is NULL.");
 318                 goto end;
 319         }
 320
 321         ret = component->name->len == 0 ? NULL : component->name->str;
 322
 323 end:
 324         return ret;
 325 }
 326
 327 struct bt_component_class *bt_component_get_class(
 328                 struct bt_component *component)
 329 {
 330         return component ? bt_get(component->class) : NULL;
 331 }
 332
 333 void *bt_private_component_get_user_data(
 334                 struct bt_private_component *private_component)
 335 {
 336         struct bt_component *component =
 337                 bt_component_from_private(private_component);
 338
 339         return component ? component->user_data : NULL;
 340 }
 341
 342 enum bt_component_status bt_private_component_set_user_data(
 343                 struct bt_private_component *private_component,
 344                 void *data)
 345 {
 346         struct bt_component *component =
 347                 bt_component_from_private(private_component);
 348         enum bt_component_status ret = BT_COMPONENT_STATUS_OK;
 349
 350         if (!component) {
 351                 BT_LOGW_STR("Invalid parameter: component is NULL.");
 352                 ret = BT_COMPONENT_STATUS_INVALID;
 353                 goto end;
 354         }
 355
 356         component->user_data = data;
 357         BT_LOGV("Set component's user data: "
 358                 "comp-addr=%p, comp-name=\"%s\", user-data-addr=%p",
 359                 component, bt_component_get_name(component), data);
 360
 361 end:
 362         return ret;
 363 }
 364
 365 BT_HIDDEN
 366 void bt_component_set_graph(struct bt_component *component,
 367                 struct bt_graph *graph)
 368 {
 369         bt_object_set_parent(component, graph ? &graph->base : NULL);
 370 }
 371
 372 struct bt_graph *bt_component_get_graph(
 373                 struct bt_component *component)
 374 {
 375         return (struct bt_graph *) bt_object_get_parent(&component->base);
 376 }
 377
 378 static
 379 struct bt_port *bt_component_get_port_by_name(GPtrArray *ports,
 380                 const char *name)
 381 {
 382         size_t i;
 383         struct bt_port *ret_port = NULL;
 384
 385         assert(name);
 386
 387         for (i = 0; i < ports->len; i++) {
 388                 struct bt_port *port = g_ptr_array_index(ports, i);
 389                 const char *port_name = bt_port_get_name(port);
 390
 391                 if (!port_name) {
 392                         continue;
 393                 }
 394
 395                 if (!strcmp(name, port_name)) {
 396                         ret_port = bt_get(port);
 397                         break;
 398                 }
 399         }
 400
 401         return ret_port;
 402 }
 403
 404 BT_HIDDEN
 405 struct bt_port *bt_component_get_input_port_by_name(struct bt_component *comp,
 406                 const char *name)
 407 {
 408         assert(comp);
 409
 410         return bt_component_get_port_by_name(comp->input_ports, name);
 411 }
 412
 413 BT_HIDDEN
 414 struct bt_port *bt_component_get_output_port_by_name(struct bt_component *comp,
 415                 const char *name)
 416 {
 417         assert(comp);
 418
 419         return bt_component_get_port_by_name(comp->output_ports, name);
 420 }
 421
 422 static
 423 struct bt_port *bt_component_get_port_by_index(GPtrArray *ports, uint64_t index)
 424 {
 425         struct bt_port *port = NULL;
 426
 427         if (index >= ports->len) {
 428                 BT_LOGW("Invalid parameter: index is out of bounds: "
 429                         "index=%" PRIu64 ", count=%u",
 430                         index, ports->len);
 431                 goto end;
 432         }
 433
 434         port = bt_get(g_ptr_array_index(ports, index));
 435 end:
 436         return port;
 437 }
 438
 439 BT_HIDDEN
 440 struct bt_port *bt_component_get_input_port_by_index(struct bt_component *comp,
 441                 uint64_t index)
 442 {
 443         assert(comp);
 444
 445         return bt_component_get_port_by_index(comp->input_ports, index);
 446 }
 447
 448 BT_HIDDEN
 449 struct bt_port *bt_component_get_output_port_by_index(struct bt_component *comp,
 450                 uint64_t index)
 451 {
 452         assert(comp);
 453
 454         return bt_component_get_port_by_index(comp->output_ports, index);
 455 }
 456
 457 BT_HIDDEN
 458 struct bt_port *bt_component_add_input_port(
 459                 struct bt_component *component, const char *name,
 460                 void *user_data)
 461 {
 462         /* bt_component_add_port() logs details */
 463         return bt_component_add_port(component, component->input_ports,
 464                 BT_PORT_TYPE_INPUT, name, user_data);
 465 }
 466
 467 BT_HIDDEN
 468 struct bt_port *bt_component_add_output_port(
 469                 struct bt_component *component, const char *name,
 470                 void *user_data)
 471 {
 472         /* bt_component_add_port() logs details */
 473         return bt_component_add_port(component, component->output_ports,
 474                 BT_PORT_TYPE_OUTPUT, name, user_data);
 475 }
 476
 477 static
 478 void bt_component_remove_port_by_index(struct bt_component *component,
 479                 GPtrArray *ports, size_t index)
 480 {
 481         struct bt_port *port;
 482         struct bt_graph *graph;
 483
 484         assert(ports);
 485         assert(index < ports->len);
 486         port = g_ptr_array_index(ports, index);
 487
 488         BT_LOGD("Removing port from component: "
 489                 "comp-addr=%p, comp-name=\"%s\", "
 490                 "port-addr=%p, port-name=\"%s\"",
 491                 component, bt_component_get_name(component),
 492                 port, bt_port_get_name(port));
 493
 494         /* Disconnect both ports of this port's connection, if any */
 495         if (port->connection) {
 496                 bt_connection_end(port->connection, true);
 497         }
 498
 499         /* Remove from parent's array of ports (weak refs) */
 500         g_ptr_array_remove_index(ports, index);
 501
 502         /* Detach port from its component parent */
 503         BT_PUT(port->base.parent);
 504
 505         /*
 506          * Notify the graph's creator that a port is removed.
 507          */
 508         graph = bt_component_get_graph(component);
 509         if (graph) {
 510                 bt_graph_notify_port_removed(graph, component, port);
 511                 BT_PUT(graph);
 512         }
 513
 514         BT_LOGD("Removed port from component: "
 515                 "comp-addr=%p, comp-name=\"%s\", "
 516                 "port-addr=%p, port-name=\"%s\"",
 517                 component, bt_component_get_name(component),
 518                 port, bt_port_get_name(port));
 519 }
 520
 521 BT_HIDDEN
 522 enum bt_component_status bt_component_remove_port(
 523                 struct bt_component *component, struct bt_port *port)
 524 {
 525         size_t i;
 526         enum bt_component_status status = BT_COMPONENT_STATUS_OK;
 527         GPtrArray *ports = NULL;
 528
 529         if (!component) {
 530                 BT_LOGW_STR("Invalid parameter: component is NULL.");
 531                 status = BT_COMPONENT_STATUS_INVALID;
 532                 goto end;
 533         }
 534
 535         if (!port) {
 536                 BT_LOGW_STR("Invalid parameter: port is NULL.");
 537                 status = BT_COMPONENT_STATUS_INVALID;
 538                 goto end;
 539         }
 540
 541         if (bt_port_get_type(port) == BT_PORT_TYPE_INPUT) {
 542                 ports = component->input_ports;
 543         } else if (bt_port_get_type(port) == BT_PORT_TYPE_OUTPUT) {
 544                 ports = component->output_ports;
 545         }
 546
 547         assert(ports);
 548
 549         for (i = 0; i < ports->len; i++) {
 550                 struct bt_port *cur_port = g_ptr_array_index(ports, i);
 551
 552                 if (cur_port == port) {
 553                         bt_component_remove_port_by_index(component,
 554                                 ports, i);
 555                         goto end;
 556                 }
 557         }
 558
 559         status = BT_COMPONENT_STATUS_NOT_FOUND;
 560         BT_LOGW("Port to remove from component was not found: "
 561                 "comp-addr=%p, comp-name=\"%s\", "
 562                 "port-addr=%p, port-name=\"%s\"",
 563                 component, bt_component_get_name(component),
 564                 port, bt_port_get_name(port));
 565
 566 end:
 567         return status;
 568 }
 569
 570 BT_HIDDEN
 571 enum bt_component_status bt_component_accept_port_connection(
 572                 struct bt_component *comp, struct bt_port *self_port,
 573                 struct bt_port *other_port)
 574 {
 575         enum bt_component_status status = BT_COMPONENT_STATUS_OK;
 576
 577         assert(comp);
 578         assert(self_port);
 579         assert(other_port);
 580
 581         if (comp->class->methods.accept_port_connection) {
 582                 BT_LOGD("Calling user's \"accept port connection\" method: "
 583                         "comp-addr=%p, comp-name=\"%s\", "
 584                         "self-port-addr=%p, self-port-name=\"%s\", "
 585                         "other-port-addr=%p, other-port-name=\"%s\"",
 586                         comp, bt_component_get_name(comp),
 587                         self_port, bt_port_get_name(self_port),
 588                         other_port, bt_port_get_name(other_port));
 589                 status = comp->class->methods.accept_port_connection(
 590                         bt_private_component_from_component(comp),
 591                         bt_private_port_from_port(self_port),
 592                         other_port);
 593                 BT_LOGD("User method returned: status=%s",
 594                         bt_component_status_string(status));
 595         }
 596
 597         return status;
 598 }
 599
 600 BT_HIDDEN
 601 void bt_component_port_connected(struct bt_component *comp,
 602                 struct bt_port *self_port, struct bt_port *other_port)
 603 {
 604         assert(comp);
 605         assert(self_port);
 606         assert(other_port);
 607
 608         if (comp->class->methods.port_connected) {
 609                 BT_LOGD("Calling user's \"port connected\" method: "
 610                         "comp-addr=%p, comp-name=\"%s\", "
 611                         "self-port-addr=%p, self-port-name=\"%s\", "
 612                         "other-port-addr=%p, other-port-name=\"%s\"",
 613                         comp, bt_component_get_name(comp),
 614                         self_port, bt_port_get_name(self_port),
 615                         other_port, bt_port_get_name(other_port));
 616                 comp->class->methods.port_connected(
 617                         bt_private_component_from_component(comp),
 618                         bt_private_port_from_port(self_port), other_port);
 619         }
 620 }
 621
 622 BT_HIDDEN
 623 void bt_component_port_disconnected(struct bt_component *comp,
 624                 struct bt_port *port)
 625 {
 626         assert(comp);
 627         assert(port);
 628
 629         if (comp->class->methods.port_disconnected) {
 630                 BT_LOGD("Calling user's \"port disconnected\" method: "
 631                         "comp-addr=%p, comp-name=\"%s\", "
 632                         "port-addr=%p, port-name=\"%s\"",
 633                         comp, bt_component_get_name(comp),
 634                         port, bt_port_get_name(port));
 635                 comp->class->methods.port_disconnected(
 636                         bt_private_component_from_component(comp),
 637                         bt_private_port_from_port(port));
 638         }
 639 }
 640
 641 BT_HIDDEN
 642 void bt_component_add_destroy_listener(struct bt_component *component,
 643                 bt_component_destroy_listener_func func, void *data)
 644 {
 645         struct bt_component_destroy_listener listener;
 646
 647         assert(component);
 648         assert(func);
 649         listener.func = func;
 650         listener.data = data;
 651         g_array_append_val(component->destroy_listeners, listener);
 652         BT_LOGV("Added destroy listener: "
 653                 "comp-addr=%p, comp-name=\"%s\", "
 654                 "func-addr=%p, data-addr=%p",
 655                 component, bt_component_get_name(component),
 656                 func, data);
 657 }
 658
 659 BT_HIDDEN
 660 void bt_component_remove_destroy_listener(struct bt_component *component,
 661                 bt_component_destroy_listener_func func, void *data)
 662 {
 663         size_t i;
 664
 665         assert(component);
 666         assert(func);
 667
 668         for (i = 0; i < component->destroy_listeners->len; i++) {
 669                 struct bt_component_destroy_listener *listener =
 670                         &g_array_index(component->destroy_listeners,
 671                                 struct bt_component_destroy_listener, i);
 672
 673                 if (listener->func == func && listener->data == data) {
 674                         g_array_remove_index(component->destroy_listeners, i);
 675                         i--;
 676                         BT_LOGV("Removed destroy listener: "
 677                                 "comp-addr=%p, comp-name=\"%s\", "
 678                                 "func-addr=%p, data-addr=%p",
 679                                 component, bt_component_get_name(component),
 680                                 func, data);
 681                 }
 682         }
 683 }