1 /* 2 * QEMU Object Model 3 * 4 * Copyright IBM, Corp. 2011 5 * 6 * Authors: 7 * Anthony Liguori <aliguori@us.ibm.com> 8 * 9 * This work is licensed under the terms of the GNU GPL, version 2 or later. 10 * See the COPYING file in the top-level directory. 11 */ 12 13 #include "qemu/osdep.h" 14 #include "hw/qdev-core.h" 15 #include "qapi/error.h" 16 #include "qom/object.h" 17 #include "qom/object_interfaces.h" 18 #include "qemu/cutils.h" 19 #include "qapi/visitor.h" 20 #include "qapi/string-input-visitor.h" 21 #include "qapi/string-output-visitor.h" 22 #include "qapi/qapi-builtin-visit.h" 23 #include "qapi/qmp/qerror.h" 24 #include "trace.h" 25 26 /* TODO: replace QObject with a simpler visitor to avoid a dependency 27 * of the QOM core on QObject? */ 28 #include "qom/qom-qobject.h" 29 #include "qapi/qmp/qbool.h" 30 #include "qapi/qmp/qnum.h" 31 #include "qapi/qmp/qstring.h" 32 #include "qemu/error-report.h" 33 34 #define MAX_INTERFACES 32 35 36 typedef struct InterfaceImpl InterfaceImpl; 37 typedef struct TypeImpl TypeImpl; 38 39 struct InterfaceImpl 40 { 41 const char *typename; 42 }; 43 44 struct TypeImpl 45 { 46 const char *name; 47 48 size_t class_size; 49 50 size_t instance_size; 51 52 void (*class_init)(ObjectClass *klass, void *data); 53 void (*class_base_init)(ObjectClass *klass, void *data); 54 55 void *class_data; 56 57 void (*instance_init)(Object *obj); 58 void (*instance_post_init)(Object *obj); 59 void (*instance_finalize)(Object *obj); 60 61 bool abstract; 62 63 const char *parent; 64 TypeImpl *parent_type; 65 66 ObjectClass *class; 67 68 int num_interfaces; 69 InterfaceImpl interfaces[MAX_INTERFACES]; 70 }; 71 72 static Type type_interface; 73 74 static GHashTable *type_table_get(void) 75 { 76 static GHashTable *type_table; 77 78 if (type_table == NULL) { 79 type_table = g_hash_table_new(g_str_hash, g_str_equal); 80 } 81 82 return type_table; 83 } 84 85 static bool enumerating_types; 86 87 static void type_table_add(TypeImpl *ti) 88 { 89 assert(!enumerating_types); 90 g_hash_table_insert(type_table_get(), (void *)ti->name, ti); 91 } 92 93 static TypeImpl *type_table_lookup(const char *name) 94 { 95 return g_hash_table_lookup(type_table_get(), name); 96 } 97 98 static TypeImpl *type_new(const TypeInfo *info) 99 { 100 TypeImpl *ti = g_malloc0(sizeof(*ti)); 101 int i; 102 103 g_assert(info->name != NULL); 104 105 if (type_table_lookup(info->name) != NULL) { 106 fprintf(stderr, "Registering `%s' which already exists\n", info->name); 107 abort(); 108 } 109 110 ti->name = g_strdup(info->name); 111 ti->parent = g_strdup(info->parent); 112 113 ti->class_size = info->class_size; 114 ti->instance_size = info->instance_size; 115 116 ti->class_init = info->class_init; 117 ti->class_base_init = info->class_base_init; 118 ti->class_data = info->class_data; 119 120 ti->instance_init = info->instance_init; 121 ti->instance_post_init = info->instance_post_init; 122 ti->instance_finalize = info->instance_finalize; 123 124 ti->abstract = info->abstract; 125 126 for (i = 0; info->interfaces && info->interfaces[i].type; i++) { 127 ti->interfaces[i].typename = g_strdup(info->interfaces[i].type); 128 } 129 ti->num_interfaces = i; 130 131 return ti; 132 } 133 134 static TypeImpl *type_register_internal(const TypeInfo *info) 135 { 136 TypeImpl *ti; 137 ti = type_new(info); 138 139 type_table_add(ti); 140 return ti; 141 } 142 143 TypeImpl *type_register(const TypeInfo *info) 144 { 145 assert(info->parent); 146 return type_register_internal(info); 147 } 148 149 TypeImpl *type_register_static(const TypeInfo *info) 150 { 151 return type_register(info); 152 } 153 154 void type_register_static_array(const TypeInfo *infos, int nr_infos) 155 { 156 int i; 157 158 for (i = 0; i < nr_infos; i++) { 159 type_register_static(&infos[i]); 160 } 161 } 162 163 static TypeImpl *type_get_by_name(const char *name) 164 { 165 if (name == NULL) { 166 return NULL; 167 } 168 169 return type_table_lookup(name); 170 } 171 172 static TypeImpl *type_get_parent(TypeImpl *type) 173 { 174 if (!type->parent_type && type->parent) { 175 type->parent_type = type_get_by_name(type->parent); 176 g_assert(type->parent_type != NULL); 177 } 178 179 return type->parent_type; 180 } 181 182 static bool type_has_parent(TypeImpl *type) 183 { 184 return (type->parent != NULL); 185 } 186 187 static size_t type_class_get_size(TypeImpl *ti) 188 { 189 if (ti->class_size) { 190 return ti->class_size; 191 } 192 193 if (type_has_parent(ti)) { 194 return type_class_get_size(type_get_parent(ti)); 195 } 196 197 return sizeof(ObjectClass); 198 } 199 200 static size_t type_object_get_size(TypeImpl *ti) 201 { 202 if (ti->instance_size) { 203 return ti->instance_size; 204 } 205 206 if (type_has_parent(ti)) { 207 return type_object_get_size(type_get_parent(ti)); 208 } 209 210 return 0; 211 } 212 213 size_t object_type_get_instance_size(const char *typename) 214 { 215 TypeImpl *type = type_get_by_name(typename); 216 217 g_assert(type != NULL); 218 return type_object_get_size(type); 219 } 220 221 static bool type_is_ancestor(TypeImpl *type, TypeImpl *target_type) 222 { 223 assert(target_type); 224 225 /* Check if target_type is a direct ancestor of type */ 226 while (type) { 227 if (type == target_type) { 228 return true; 229 } 230 231 type = type_get_parent(type); 232 } 233 234 return false; 235 } 236 237 static void type_initialize(TypeImpl *ti); 238 239 static void type_initialize_interface(TypeImpl *ti, TypeImpl *interface_type, 240 TypeImpl *parent_type) 241 { 242 InterfaceClass *new_iface; 243 TypeInfo info = { }; 244 TypeImpl *iface_impl; 245 246 info.parent = parent_type->name; 247 info.name = g_strdup_printf("%s::%s", ti->name, interface_type->name); 248 info.abstract = true; 249 250 iface_impl = type_new(&info); 251 iface_impl->parent_type = parent_type; 252 type_initialize(iface_impl); 253 g_free((char *)info.name); 254 255 new_iface = (InterfaceClass *)iface_impl->class; 256 new_iface->concrete_class = ti->class; 257 new_iface->interface_type = interface_type; 258 259 ti->class->interfaces = g_slist_append(ti->class->interfaces, 260 iface_impl->class); 261 } 262 263 static void object_property_free(gpointer data) 264 { 265 ObjectProperty *prop = data; 266 267 g_free(prop->name); 268 g_free(prop->type); 269 g_free(prop->description); 270 g_free(prop); 271 } 272 273 static void type_initialize(TypeImpl *ti) 274 { 275 TypeImpl *parent; 276 277 if (ti->class) { 278 return; 279 } 280 281 ti->class_size = type_class_get_size(ti); 282 ti->instance_size = type_object_get_size(ti); 283 /* Any type with zero instance_size is implicitly abstract. 284 * This means interface types are all abstract. 285 */ 286 if (ti->instance_size == 0) { 287 ti->abstract = true; 288 } 289 if (type_is_ancestor(ti, type_interface)) { 290 assert(ti->instance_size == 0); 291 assert(ti->abstract); 292 assert(!ti->instance_init); 293 assert(!ti->instance_post_init); 294 assert(!ti->instance_finalize); 295 assert(!ti->num_interfaces); 296 } 297 ti->class = g_malloc0(ti->class_size); 298 299 parent = type_get_parent(ti); 300 if (parent) { 301 type_initialize(parent); 302 GSList *e; 303 int i; 304 305 g_assert(parent->class_size <= ti->class_size); 306 memcpy(ti->class, parent->class, parent->class_size); 307 ti->class->interfaces = NULL; 308 ti->class->properties = g_hash_table_new_full( 309 g_str_hash, g_str_equal, g_free, object_property_free); 310 311 for (e = parent->class->interfaces; e; e = e->next) { 312 InterfaceClass *iface = e->data; 313 ObjectClass *klass = OBJECT_CLASS(iface); 314 315 type_initialize_interface(ti, iface->interface_type, klass->type); 316 } 317 318 for (i = 0; i < ti->num_interfaces; i++) { 319 TypeImpl *t = type_get_by_name(ti->interfaces[i].typename); 320 for (e = ti->class->interfaces; e; e = e->next) { 321 TypeImpl *target_type = OBJECT_CLASS(e->data)->type; 322 323 if (type_is_ancestor(target_type, t)) { 324 break; 325 } 326 } 327 328 if (e) { 329 continue; 330 } 331 332 type_initialize_interface(ti, t, t); 333 } 334 } else { 335 ti->class->properties = g_hash_table_new_full( 336 g_str_hash, g_str_equal, g_free, object_property_free); 337 } 338 339 ti->class->type = ti; 340 341 while (parent) { 342 if (parent->class_base_init) { 343 parent->class_base_init(ti->class, ti->class_data); 344 } 345 parent = type_get_parent(parent); 346 } 347 348 if (ti->class_init) { 349 ti->class_init(ti->class, ti->class_data); 350 } 351 } 352 353 static void object_init_with_type(Object *obj, TypeImpl *ti) 354 { 355 if (type_has_parent(ti)) { 356 object_init_with_type(obj, type_get_parent(ti)); 357 } 358 359 if (ti->instance_init) { 360 ti->instance_init(obj); 361 } 362 } 363 364 static void object_post_init_with_type(Object *obj, TypeImpl *ti) 365 { 366 if (ti->instance_post_init) { 367 ti->instance_post_init(obj); 368 } 369 370 if (type_has_parent(ti)) { 371 object_post_init_with_type(obj, type_get_parent(ti)); 372 } 373 } 374 375 void object_apply_global_props(Object *obj, const GPtrArray *props, Error **errp) 376 { 377 int i; 378 379 if (!props) { 380 return; 381 } 382 383 for (i = 0; i < props->len; i++) { 384 GlobalProperty *p = g_ptr_array_index(props, i); 385 Error *err = NULL; 386 387 if (object_dynamic_cast(obj, p->driver) == NULL) { 388 continue; 389 } 390 if (p->optional && !object_property_find(obj, p->property, NULL)) { 391 continue; 392 } 393 p->used = true; 394 object_property_parse(obj, p->value, p->property, &err); 395 if (err != NULL) { 396 error_prepend(&err, "can't apply global %s.%s=%s: ", 397 p->driver, p->property, p->value); 398 /* 399 * If errp != NULL, propagate error and return. 400 * If errp == NULL, report a warning, but keep going 401 * with the remaining globals. 402 */ 403 if (errp) { 404 error_propagate(errp, err); 405 return; 406 } else { 407 warn_report_err(err); 408 } 409 } 410 } 411 } 412 413 /* 414 * Global property defaults 415 * Slot 0: accelerator's global property defaults 416 * Slot 1: machine's global property defaults 417 * Slot 2: global properties from legacy command line option 418 * Each is a GPtrArray of of GlobalProperty. 419 * Applied in order, later entries override earlier ones. 420 */ 421 static GPtrArray *object_compat_props[3]; 422 423 /* 424 * Retrieve @GPtrArray for global property defined with options 425 * other than "-global". These are generally used for syntactic 426 * sugar and legacy command line options. 427 */ 428 void object_register_sugar_prop(const char *driver, const char *prop, const char *value) 429 { 430 GlobalProperty *g; 431 if (!object_compat_props[2]) { 432 object_compat_props[2] = g_ptr_array_new(); 433 } 434 g = g_new0(GlobalProperty, 1); 435 g->driver = g_strdup(driver); 436 g->property = g_strdup(prop); 437 g->value = g_strdup(value); 438 g_ptr_array_add(object_compat_props[2], g); 439 } 440 441 /* 442 * Set machine's global property defaults to @compat_props. 443 * May be called at most once. 444 */ 445 void object_set_machine_compat_props(GPtrArray *compat_props) 446 { 447 assert(!object_compat_props[1]); 448 object_compat_props[1] = compat_props; 449 } 450 451 /* 452 * Set accelerator's global property defaults to @compat_props. 453 * May be called at most once. 454 */ 455 void object_set_accelerator_compat_props(GPtrArray *compat_props) 456 { 457 assert(!object_compat_props[0]); 458 object_compat_props[0] = compat_props; 459 } 460 461 void object_apply_compat_props(Object *obj) 462 { 463 int i; 464 465 for (i = 0; i < ARRAY_SIZE(object_compat_props); i++) { 466 object_apply_global_props(obj, object_compat_props[i], 467 i == 2 ? &error_fatal : &error_abort); 468 } 469 } 470 471 static void object_initialize_with_type(void *data, size_t size, TypeImpl *type) 472 { 473 Object *obj = data; 474 475 type_initialize(type); 476 477 g_assert(type->instance_size >= sizeof(Object)); 478 g_assert(type->abstract == false); 479 g_assert(size >= type->instance_size); 480 481 memset(obj, 0, type->instance_size); 482 obj->class = type->class; 483 object_ref(obj); 484 obj->properties = g_hash_table_new_full(g_str_hash, g_str_equal, 485 NULL, object_property_free); 486 object_init_with_type(obj, type); 487 object_post_init_with_type(obj, type); 488 } 489 490 void object_initialize(void *data, size_t size, const char *typename) 491 { 492 TypeImpl *type = type_get_by_name(typename); 493 494 if (!type) { 495 error_report("missing object type '%s'", typename); 496 abort(); 497 } 498 499 object_initialize_with_type(data, size, type); 500 } 501 502 void object_initialize_child(Object *parentobj, const char *propname, 503 void *childobj, size_t size, const char *type, 504 Error **errp, ...) 505 { 506 va_list vargs; 507 508 va_start(vargs, errp); 509 object_initialize_childv(parentobj, propname, childobj, size, type, errp, 510 vargs); 511 va_end(vargs); 512 } 513 514 void object_initialize_childv(Object *parentobj, const char *propname, 515 void *childobj, size_t size, const char *type, 516 Error **errp, va_list vargs) 517 { 518 Error *local_err = NULL; 519 Object *obj; 520 UserCreatable *uc; 521 522 object_initialize(childobj, size, type); 523 obj = OBJECT(childobj); 524 525 object_set_propv(obj, &local_err, vargs); 526 if (local_err) { 527 goto out; 528 } 529 530 object_property_add_child(parentobj, propname, obj, &local_err); 531 if (local_err) { 532 goto out; 533 } 534 535 uc = (UserCreatable *)object_dynamic_cast(obj, TYPE_USER_CREATABLE); 536 if (uc) { 537 user_creatable_complete(uc, &local_err); 538 if (local_err) { 539 object_unparent(obj); 540 goto out; 541 } 542 } 543 544 /* 545 * Since object_property_add_child added a reference to the child object, 546 * we can drop the reference added by object_initialize(), so the child 547 * property will own the only reference to the object. 548 */ 549 object_unref(obj); 550 551 out: 552 if (local_err) { 553 error_propagate(errp, local_err); 554 object_unref(obj); 555 } 556 } 557 558 static inline bool object_property_is_child(ObjectProperty *prop) 559 { 560 return strstart(prop->type, "child<", NULL); 561 } 562 563 static void object_property_del_all(Object *obj) 564 { 565 ObjectProperty *prop; 566 GHashTableIter iter; 567 gpointer key, value; 568 bool released; 569 570 do { 571 released = false; 572 g_hash_table_iter_init(&iter, obj->properties); 573 while (g_hash_table_iter_next(&iter, &key, &value)) { 574 prop = value; 575 if (prop->release) { 576 prop->release(obj, prop->name, prop->opaque); 577 prop->release = NULL; 578 released = true; 579 break; 580 } 581 g_hash_table_iter_remove(&iter); 582 } 583 } while (released); 584 585 g_hash_table_unref(obj->properties); 586 } 587 588 static void object_property_del_child(Object *obj, Object *child, Error **errp) 589 { 590 ObjectProperty *prop; 591 GHashTableIter iter; 592 gpointer key, value; 593 594 g_hash_table_iter_init(&iter, obj->properties); 595 while (g_hash_table_iter_next(&iter, &key, &value)) { 596 prop = value; 597 if (object_property_is_child(prop) && prop->opaque == child) { 598 if (prop->release) { 599 prop->release(obj, prop->name, prop->opaque); 600 prop->release = NULL; 601 } 602 break; 603 } 604 } 605 g_hash_table_iter_init(&iter, obj->properties); 606 while (g_hash_table_iter_next(&iter, &key, &value)) { 607 prop = value; 608 if (object_property_is_child(prop) && prop->opaque == child) { 609 g_hash_table_iter_remove(&iter); 610 break; 611 } 612 } 613 } 614 615 void object_unparent(Object *obj) 616 { 617 if (obj->parent) { 618 object_property_del_child(obj->parent, obj, NULL); 619 } 620 } 621 622 static void object_deinit(Object *obj, TypeImpl *type) 623 { 624 if (type->instance_finalize) { 625 type->instance_finalize(obj); 626 } 627 628 if (type_has_parent(type)) { 629 object_deinit(obj, type_get_parent(type)); 630 } 631 } 632 633 static void object_finalize(void *data) 634 { 635 Object *obj = data; 636 TypeImpl *ti = obj->class->type; 637 638 object_property_del_all(obj); 639 object_deinit(obj, ti); 640 641 g_assert(obj->ref == 0); 642 if (obj->free) { 643 obj->free(obj); 644 } 645 } 646 647 static Object *object_new_with_type(Type type) 648 { 649 Object *obj; 650 651 g_assert(type != NULL); 652 type_initialize(type); 653 654 obj = g_malloc(type->instance_size); 655 object_initialize_with_type(obj, type->instance_size, type); 656 obj->free = g_free; 657 658 return obj; 659 } 660 661 Object *object_new_with_class(ObjectClass *klass) 662 { 663 return object_new_with_type(klass->type); 664 } 665 666 Object *object_new(const char *typename) 667 { 668 TypeImpl *ti = type_get_by_name(typename); 669 670 return object_new_with_type(ti); 671 } 672 673 674 Object *object_new_with_props(const char *typename, 675 Object *parent, 676 const char *id, 677 Error **errp, 678 ...) 679 { 680 va_list vargs; 681 Object *obj; 682 683 va_start(vargs, errp); 684 obj = object_new_with_propv(typename, parent, id, errp, vargs); 685 va_end(vargs); 686 687 return obj; 688 } 689 690 691 Object *object_new_with_propv(const char *typename, 692 Object *parent, 693 const char *id, 694 Error **errp, 695 va_list vargs) 696 { 697 Object *obj; 698 ObjectClass *klass; 699 Error *local_err = NULL; 700 UserCreatable *uc; 701 702 klass = object_class_by_name(typename); 703 if (!klass) { 704 error_setg(errp, "invalid object type: %s", typename); 705 return NULL; 706 } 707 708 if (object_class_is_abstract(klass)) { 709 error_setg(errp, "object type '%s' is abstract", typename); 710 return NULL; 711 } 712 obj = object_new_with_type(klass->type); 713 714 if (object_set_propv(obj, &local_err, vargs) < 0) { 715 goto error; 716 } 717 718 if (id != NULL) { 719 object_property_add_child(parent, id, obj, &local_err); 720 if (local_err) { 721 goto error; 722 } 723 } 724 725 uc = (UserCreatable *)object_dynamic_cast(obj, TYPE_USER_CREATABLE); 726 if (uc) { 727 user_creatable_complete(uc, &local_err); 728 if (local_err) { 729 if (id != NULL) { 730 object_unparent(obj); 731 } 732 goto error; 733 } 734 } 735 736 object_unref(OBJECT(obj)); 737 return obj; 738 739 error: 740 error_propagate(errp, local_err); 741 object_unref(obj); 742 return NULL; 743 } 744 745 746 int object_set_props(Object *obj, 747 Error **errp, 748 ...) 749 { 750 va_list vargs; 751 int ret; 752 753 va_start(vargs, errp); 754 ret = object_set_propv(obj, errp, vargs); 755 va_end(vargs); 756 757 return ret; 758 } 759 760 761 int object_set_propv(Object *obj, 762 Error **errp, 763 va_list vargs) 764 { 765 const char *propname; 766 Error *local_err = NULL; 767 768 propname = va_arg(vargs, char *); 769 while (propname != NULL) { 770 const char *value = va_arg(vargs, char *); 771 772 g_assert(value != NULL); 773 object_property_parse(obj, value, propname, &local_err); 774 if (local_err) { 775 error_propagate(errp, local_err); 776 return -1; 777 } 778 propname = va_arg(vargs, char *); 779 } 780 781 return 0; 782 } 783 784 785 Object *object_dynamic_cast(Object *obj, const char *typename) 786 { 787 if (obj && object_class_dynamic_cast(object_get_class(obj), typename)) { 788 return obj; 789 } 790 791 return NULL; 792 } 793 794 Object *object_dynamic_cast_assert(Object *obj, const char *typename, 795 const char *file, int line, const char *func) 796 { 797 trace_object_dynamic_cast_assert(obj ? obj->class->type->name : "(null)", 798 typename, file, line, func); 799 800 #ifdef CONFIG_QOM_CAST_DEBUG 801 int i; 802 Object *inst; 803 804 for (i = 0; obj && i < OBJECT_CLASS_CAST_CACHE; i++) { 805 if (atomic_read(&obj->class->object_cast_cache[i]) == typename) { 806 goto out; 807 } 808 } 809 810 inst = object_dynamic_cast(obj, typename); 811 812 if (!inst && obj) { 813 fprintf(stderr, "%s:%d:%s: Object %p is not an instance of type %s\n", 814 file, line, func, obj, typename); 815 abort(); 816 } 817 818 assert(obj == inst); 819 820 if (obj && obj == inst) { 821 for (i = 1; i < OBJECT_CLASS_CAST_CACHE; i++) { 822 atomic_set(&obj->class->object_cast_cache[i - 1], 823 atomic_read(&obj->class->object_cast_cache[i])); 824 } 825 atomic_set(&obj->class->object_cast_cache[i - 1], typename); 826 } 827 828 out: 829 #endif 830 return obj; 831 } 832 833 ObjectClass *object_class_dynamic_cast(ObjectClass *class, 834 const char *typename) 835 { 836 ObjectClass *ret = NULL; 837 TypeImpl *target_type; 838 TypeImpl *type; 839 840 if (!class) { 841 return NULL; 842 } 843 844 /* A simple fast path that can trigger a lot for leaf classes. */ 845 type = class->type; 846 if (type->name == typename) { 847 return class; 848 } 849 850 target_type = type_get_by_name(typename); 851 if (!target_type) { 852 /* target class type unknown, so fail the cast */ 853 return NULL; 854 } 855 856 if (type->class->interfaces && 857 type_is_ancestor(target_type, type_interface)) { 858 int found = 0; 859 GSList *i; 860 861 for (i = class->interfaces; i; i = i->next) { 862 ObjectClass *target_class = i->data; 863 864 if (type_is_ancestor(target_class->type, target_type)) { 865 ret = target_class; 866 found++; 867 } 868 } 869 870 /* The match was ambiguous, don't allow a cast */ 871 if (found > 1) { 872 ret = NULL; 873 } 874 } else if (type_is_ancestor(type, target_type)) { 875 ret = class; 876 } 877 878 return ret; 879 } 880 881 ObjectClass *object_class_dynamic_cast_assert(ObjectClass *class, 882 const char *typename, 883 const char *file, int line, 884 const char *func) 885 { 886 ObjectClass *ret; 887 888 trace_object_class_dynamic_cast_assert(class ? class->type->name : "(null)", 889 typename, file, line, func); 890 891 #ifdef CONFIG_QOM_CAST_DEBUG 892 int i; 893 894 for (i = 0; class && i < OBJECT_CLASS_CAST_CACHE; i++) { 895 if (atomic_read(&class->class_cast_cache[i]) == typename) { 896 ret = class; 897 goto out; 898 } 899 } 900 #else 901 if (!class || !class->interfaces) { 902 return class; 903 } 904 #endif 905 906 ret = object_class_dynamic_cast(class, typename); 907 if (!ret && class) { 908 fprintf(stderr, "%s:%d:%s: Object %p is not an instance of type %s\n", 909 file, line, func, class, typename); 910 abort(); 911 } 912 913 #ifdef CONFIG_QOM_CAST_DEBUG 914 if (class && ret == class) { 915 for (i = 1; i < OBJECT_CLASS_CAST_CACHE; i++) { 916 atomic_set(&class->class_cast_cache[i - 1], 917 atomic_read(&class->class_cast_cache[i])); 918 } 919 atomic_set(&class->class_cast_cache[i - 1], typename); 920 } 921 out: 922 #endif 923 return ret; 924 } 925 926 const char *object_get_typename(const Object *obj) 927 { 928 return obj->class->type->name; 929 } 930 931 ObjectClass *object_get_class(Object *obj) 932 { 933 return obj->class; 934 } 935 936 bool object_class_is_abstract(ObjectClass *klass) 937 { 938 return klass->type->abstract; 939 } 940 941 const char *object_class_get_name(ObjectClass *klass) 942 { 943 return klass->type->name; 944 } 945 946 ObjectClass *object_class_by_name(const char *typename) 947 { 948 TypeImpl *type = type_get_by_name(typename); 949 950 if (!type) { 951 return NULL; 952 } 953 954 type_initialize(type); 955 956 return type->class; 957 } 958 959 ObjectClass *object_class_get_parent(ObjectClass *class) 960 { 961 TypeImpl *type = type_get_parent(class->type); 962 963 if (!type) { 964 return NULL; 965 } 966 967 type_initialize(type); 968 969 return type->class; 970 } 971 972 typedef struct OCFData 973 { 974 void (*fn)(ObjectClass *klass, void *opaque); 975 const char *implements_type; 976 bool include_abstract; 977 void *opaque; 978 } OCFData; 979 980 static void object_class_foreach_tramp(gpointer key, gpointer value, 981 gpointer opaque) 982 { 983 OCFData *data = opaque; 984 TypeImpl *type = value; 985 ObjectClass *k; 986 987 type_initialize(type); 988 k = type->class; 989 990 if (!data->include_abstract && type->abstract) { 991 return; 992 } 993 994 if (data->implements_type && 995 !object_class_dynamic_cast(k, data->implements_type)) { 996 return; 997 } 998 999 data->fn(k, data->opaque); 1000 } 1001 1002 void object_class_foreach(void (*fn)(ObjectClass *klass, void *opaque), 1003 const char *implements_type, bool include_abstract, 1004 void *opaque) 1005 { 1006 OCFData data = { fn, implements_type, include_abstract, opaque }; 1007 1008 enumerating_types = true; 1009 g_hash_table_foreach(type_table_get(), object_class_foreach_tramp, &data); 1010 enumerating_types = false; 1011 } 1012 1013 static int do_object_child_foreach(Object *obj, 1014 int (*fn)(Object *child, void *opaque), 1015 void *opaque, bool recurse) 1016 { 1017 GHashTableIter iter; 1018 ObjectProperty *prop; 1019 int ret = 0; 1020 1021 g_hash_table_iter_init(&iter, obj->properties); 1022 while (g_hash_table_iter_next(&iter, NULL, (gpointer *)&prop)) { 1023 if (object_property_is_child(prop)) { 1024 Object *child = prop->opaque; 1025 1026 ret = fn(child, opaque); 1027 if (ret != 0) { 1028 break; 1029 } 1030 if (recurse) { 1031 do_object_child_foreach(child, fn, opaque, true); 1032 } 1033 } 1034 } 1035 return ret; 1036 } 1037 1038 int object_child_foreach(Object *obj, int (*fn)(Object *child, void *opaque), 1039 void *opaque) 1040 { 1041 return do_object_child_foreach(obj, fn, opaque, false); 1042 } 1043 1044 int object_child_foreach_recursive(Object *obj, 1045 int (*fn)(Object *child, void *opaque), 1046 void *opaque) 1047 { 1048 return do_object_child_foreach(obj, fn, opaque, true); 1049 } 1050 1051 static void object_class_get_list_tramp(ObjectClass *klass, void *opaque) 1052 { 1053 GSList **list = opaque; 1054 1055 *list = g_slist_prepend(*list, klass); 1056 } 1057 1058 GSList *object_class_get_list(const char *implements_type, 1059 bool include_abstract) 1060 { 1061 GSList *list = NULL; 1062 1063 object_class_foreach(object_class_get_list_tramp, 1064 implements_type, include_abstract, &list); 1065 return list; 1066 } 1067 1068 static gint object_class_cmp(gconstpointer a, gconstpointer b) 1069 { 1070 return strcasecmp(object_class_get_name((ObjectClass *)a), 1071 object_class_get_name((ObjectClass *)b)); 1072 } 1073 1074 GSList *object_class_get_list_sorted(const char *implements_type, 1075 bool include_abstract) 1076 { 1077 return g_slist_sort(object_class_get_list(implements_type, include_abstract), 1078 object_class_cmp); 1079 } 1080 1081 void object_ref(Object *obj) 1082 { 1083 if (!obj) { 1084 return; 1085 } 1086 atomic_inc(&obj->ref); 1087 } 1088 1089 void object_unref(Object *obj) 1090 { 1091 if (!obj) { 1092 return; 1093 } 1094 g_assert(obj->ref > 0); 1095 1096 /* parent always holds a reference to its children */ 1097 if (atomic_fetch_dec(&obj->ref) == 1) { 1098 object_finalize(obj); 1099 } 1100 } 1101 1102 ObjectProperty * 1103 object_property_add(Object *obj, const char *name, const char *type, 1104 ObjectPropertyAccessor *get, 1105 ObjectPropertyAccessor *set, 1106 ObjectPropertyRelease *release, 1107 void *opaque, Error **errp) 1108 { 1109 ObjectProperty *prop; 1110 size_t name_len = strlen(name); 1111 1112 if (name_len >= 3 && !memcmp(name + name_len - 3, "[*]", 4)) { 1113 int i; 1114 ObjectProperty *ret; 1115 char *name_no_array = g_strdup(name); 1116 1117 name_no_array[name_len - 3] = '\0'; 1118 for (i = 0; ; ++i) { 1119 char *full_name = g_strdup_printf("%s[%d]", name_no_array, i); 1120 1121 ret = object_property_add(obj, full_name, type, get, set, 1122 release, opaque, NULL); 1123 g_free(full_name); 1124 if (ret) { 1125 break; 1126 } 1127 } 1128 g_free(name_no_array); 1129 return ret; 1130 } 1131 1132 if (object_property_find(obj, name, NULL) != NULL) { 1133 error_setg(errp, "attempt to add duplicate property '%s' to object (type '%s')", 1134 name, object_get_typename(obj)); 1135 return NULL; 1136 } 1137 1138 prop = g_malloc0(sizeof(*prop)); 1139 1140 prop->name = g_strdup(name); 1141 prop->type = g_strdup(type); 1142 1143 prop->get = get; 1144 prop->set = set; 1145 prop->release = release; 1146 prop->opaque = opaque; 1147 1148 g_hash_table_insert(obj->properties, prop->name, prop); 1149 return prop; 1150 } 1151 1152 ObjectProperty * 1153 object_class_property_add(ObjectClass *klass, 1154 const char *name, 1155 const char *type, 1156 ObjectPropertyAccessor *get, 1157 ObjectPropertyAccessor *set, 1158 ObjectPropertyRelease *release, 1159 void *opaque, 1160 Error **errp) 1161 { 1162 ObjectProperty *prop; 1163 1164 if (object_class_property_find(klass, name, NULL) != NULL) { 1165 error_setg(errp, "attempt to add duplicate property '%s' to class (type '%s')", 1166 name, object_class_get_name(klass)); 1167 return NULL; 1168 } 1169 1170 prop = g_malloc0(sizeof(*prop)); 1171 1172 prop->name = g_strdup(name); 1173 prop->type = g_strdup(type); 1174 1175 prop->get = get; 1176 prop->set = set; 1177 prop->release = release; 1178 prop->opaque = opaque; 1179 1180 g_hash_table_insert(klass->properties, g_strdup(name), prop); 1181 1182 return prop; 1183 } 1184 1185 ObjectProperty *object_property_find(Object *obj, const char *name, 1186 Error **errp) 1187 { 1188 ObjectProperty *prop; 1189 ObjectClass *klass = object_get_class(obj); 1190 1191 prop = object_class_property_find(klass, name, NULL); 1192 if (prop) { 1193 return prop; 1194 } 1195 1196 prop = g_hash_table_lookup(obj->properties, name); 1197 if (prop) { 1198 return prop; 1199 } 1200 1201 error_setg(errp, "Property '.%s' not found", name); 1202 return NULL; 1203 } 1204 1205 void object_property_iter_init(ObjectPropertyIterator *iter, 1206 Object *obj) 1207 { 1208 g_hash_table_iter_init(&iter->iter, obj->properties); 1209 iter->nextclass = object_get_class(obj); 1210 } 1211 1212 ObjectProperty *object_property_iter_next(ObjectPropertyIterator *iter) 1213 { 1214 gpointer key, val; 1215 while (!g_hash_table_iter_next(&iter->iter, &key, &val)) { 1216 if (!iter->nextclass) { 1217 return NULL; 1218 } 1219 g_hash_table_iter_init(&iter->iter, iter->nextclass->properties); 1220 iter->nextclass = object_class_get_parent(iter->nextclass); 1221 } 1222 return val; 1223 } 1224 1225 void object_class_property_iter_init(ObjectPropertyIterator *iter, 1226 ObjectClass *klass) 1227 { 1228 g_hash_table_iter_init(&iter->iter, klass->properties); 1229 iter->nextclass = object_class_get_parent(klass); 1230 } 1231 1232 ObjectProperty *object_class_property_find(ObjectClass *klass, const char *name, 1233 Error **errp) 1234 { 1235 ObjectProperty *prop; 1236 ObjectClass *parent_klass; 1237 1238 parent_klass = object_class_get_parent(klass); 1239 if (parent_klass) { 1240 prop = object_class_property_find(parent_klass, name, NULL); 1241 if (prop) { 1242 return prop; 1243 } 1244 } 1245 1246 prop = g_hash_table_lookup(klass->properties, name); 1247 if (!prop) { 1248 error_setg(errp, "Property '.%s' not found", name); 1249 } 1250 return prop; 1251 } 1252 1253 void object_property_del(Object *obj, const char *name, Error **errp) 1254 { 1255 ObjectProperty *prop = g_hash_table_lookup(obj->properties, name); 1256 1257 if (!prop) { 1258 error_setg(errp, "Property '.%s' not found", name); 1259 return; 1260 } 1261 1262 if (prop->release) { 1263 prop->release(obj, name, prop->opaque); 1264 } 1265 g_hash_table_remove(obj->properties, name); 1266 } 1267 1268 void object_property_get(Object *obj, Visitor *v, const char *name, 1269 Error **errp) 1270 { 1271 ObjectProperty *prop = object_property_find(obj, name, errp); 1272 if (prop == NULL) { 1273 return; 1274 } 1275 1276 if (!prop->get) { 1277 error_setg(errp, QERR_PERMISSION_DENIED); 1278 } else { 1279 prop->get(obj, v, name, prop->opaque, errp); 1280 } 1281 } 1282 1283 void object_property_set(Object *obj, Visitor *v, const char *name, 1284 Error **errp) 1285 { 1286 ObjectProperty *prop = object_property_find(obj, name, errp); 1287 if (prop == NULL) { 1288 return; 1289 } 1290 1291 if (!prop->set) { 1292 error_setg(errp, QERR_PERMISSION_DENIED); 1293 } else { 1294 prop->set(obj, v, name, prop->opaque, errp); 1295 } 1296 } 1297 1298 void object_property_set_str(Object *obj, const char *value, 1299 const char *name, Error **errp) 1300 { 1301 QString *qstr = qstring_from_str(value); 1302 object_property_set_qobject(obj, QOBJECT(qstr), name, errp); 1303 1304 qobject_unref(qstr); 1305 } 1306 1307 char *object_property_get_str(Object *obj, const char *name, 1308 Error **errp) 1309 { 1310 QObject *ret = object_property_get_qobject(obj, name, errp); 1311 char *retval; 1312 1313 if (!ret) { 1314 return NULL; 1315 } 1316 1317 retval = g_strdup(qobject_get_try_str(ret)); 1318 if (!retval) { 1319 error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "string"); 1320 } 1321 1322 qobject_unref(ret); 1323 return retval; 1324 } 1325 1326 void object_property_set_link(Object *obj, Object *value, 1327 const char *name, Error **errp) 1328 { 1329 if (value) { 1330 gchar *path = object_get_canonical_path(value); 1331 object_property_set_str(obj, path, name, errp); 1332 g_free(path); 1333 } else { 1334 object_property_set_str(obj, "", name, errp); 1335 } 1336 } 1337 1338 Object *object_property_get_link(Object *obj, const char *name, 1339 Error **errp) 1340 { 1341 char *str = object_property_get_str(obj, name, errp); 1342 Object *target = NULL; 1343 1344 if (str && *str) { 1345 target = object_resolve_path(str, NULL); 1346 if (!target) { 1347 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, 1348 "Device '%s' not found", str); 1349 } 1350 } 1351 1352 g_free(str); 1353 return target; 1354 } 1355 1356 void object_property_set_bool(Object *obj, bool value, 1357 const char *name, Error **errp) 1358 { 1359 QBool *qbool = qbool_from_bool(value); 1360 object_property_set_qobject(obj, QOBJECT(qbool), name, errp); 1361 1362 qobject_unref(qbool); 1363 } 1364 1365 bool object_property_get_bool(Object *obj, const char *name, 1366 Error **errp) 1367 { 1368 QObject *ret = object_property_get_qobject(obj, name, errp); 1369 QBool *qbool; 1370 bool retval; 1371 1372 if (!ret) { 1373 return false; 1374 } 1375 qbool = qobject_to(QBool, ret); 1376 if (!qbool) { 1377 error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "boolean"); 1378 retval = false; 1379 } else { 1380 retval = qbool_get_bool(qbool); 1381 } 1382 1383 qobject_unref(ret); 1384 return retval; 1385 } 1386 1387 void object_property_set_int(Object *obj, int64_t value, 1388 const char *name, Error **errp) 1389 { 1390 QNum *qnum = qnum_from_int(value); 1391 object_property_set_qobject(obj, QOBJECT(qnum), name, errp); 1392 1393 qobject_unref(qnum); 1394 } 1395 1396 int64_t object_property_get_int(Object *obj, const char *name, 1397 Error **errp) 1398 { 1399 QObject *ret = object_property_get_qobject(obj, name, errp); 1400 QNum *qnum; 1401 int64_t retval; 1402 1403 if (!ret) { 1404 return -1; 1405 } 1406 1407 qnum = qobject_to(QNum, ret); 1408 if (!qnum || !qnum_get_try_int(qnum, &retval)) { 1409 error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "int"); 1410 retval = -1; 1411 } 1412 1413 qobject_unref(ret); 1414 return retval; 1415 } 1416 1417 void object_property_set_uint(Object *obj, uint64_t value, 1418 const char *name, Error **errp) 1419 { 1420 QNum *qnum = qnum_from_uint(value); 1421 1422 object_property_set_qobject(obj, QOBJECT(qnum), name, errp); 1423 qobject_unref(qnum); 1424 } 1425 1426 uint64_t object_property_get_uint(Object *obj, const char *name, 1427 Error **errp) 1428 { 1429 QObject *ret = object_property_get_qobject(obj, name, errp); 1430 QNum *qnum; 1431 uint64_t retval; 1432 1433 if (!ret) { 1434 return 0; 1435 } 1436 qnum = qobject_to(QNum, ret); 1437 if (!qnum || !qnum_get_try_uint(qnum, &retval)) { 1438 error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "uint"); 1439 retval = 0; 1440 } 1441 1442 qobject_unref(ret); 1443 return retval; 1444 } 1445 1446 typedef struct EnumProperty { 1447 const QEnumLookup *lookup; 1448 int (*get)(Object *, Error **); 1449 void (*set)(Object *, int, Error **); 1450 } EnumProperty; 1451 1452 int object_property_get_enum(Object *obj, const char *name, 1453 const char *typename, Error **errp) 1454 { 1455 Error *err = NULL; 1456 Visitor *v; 1457 char *str; 1458 int ret; 1459 ObjectProperty *prop = object_property_find(obj, name, errp); 1460 EnumProperty *enumprop; 1461 1462 if (prop == NULL) { 1463 return 0; 1464 } 1465 1466 if (!g_str_equal(prop->type, typename)) { 1467 error_setg(errp, "Property %s on %s is not '%s' enum type", 1468 name, object_class_get_name( 1469 object_get_class(obj)), typename); 1470 return 0; 1471 } 1472 1473 enumprop = prop->opaque; 1474 1475 v = string_output_visitor_new(false, &str); 1476 object_property_get(obj, v, name, &err); 1477 if (err) { 1478 error_propagate(errp, err); 1479 visit_free(v); 1480 return 0; 1481 } 1482 visit_complete(v, &str); 1483 visit_free(v); 1484 v = string_input_visitor_new(str); 1485 visit_type_enum(v, name, &ret, enumprop->lookup, errp); 1486 1487 g_free(str); 1488 visit_free(v); 1489 1490 return ret; 1491 } 1492 1493 void object_property_get_uint16List(Object *obj, const char *name, 1494 uint16List **list, Error **errp) 1495 { 1496 Error *err = NULL; 1497 Visitor *v; 1498 char *str; 1499 1500 v = string_output_visitor_new(false, &str); 1501 object_property_get(obj, v, name, &err); 1502 if (err) { 1503 error_propagate(errp, err); 1504 goto out; 1505 } 1506 visit_complete(v, &str); 1507 visit_free(v); 1508 v = string_input_visitor_new(str); 1509 visit_type_uint16List(v, NULL, list, errp); 1510 1511 g_free(str); 1512 out: 1513 visit_free(v); 1514 } 1515 1516 void object_property_parse(Object *obj, const char *string, 1517 const char *name, Error **errp) 1518 { 1519 Visitor *v = string_input_visitor_new(string); 1520 object_property_set(obj, v, name, errp); 1521 visit_free(v); 1522 } 1523 1524 char *object_property_print(Object *obj, const char *name, bool human, 1525 Error **errp) 1526 { 1527 Visitor *v; 1528 char *string = NULL; 1529 Error *local_err = NULL; 1530 1531 v = string_output_visitor_new(human, &string); 1532 object_property_get(obj, v, name, &local_err); 1533 if (local_err) { 1534 error_propagate(errp, local_err); 1535 goto out; 1536 } 1537 1538 visit_complete(v, &string); 1539 1540 out: 1541 visit_free(v); 1542 return string; 1543 } 1544 1545 const char *object_property_get_type(Object *obj, const char *name, Error **errp) 1546 { 1547 ObjectProperty *prop = object_property_find(obj, name, errp); 1548 if (prop == NULL) { 1549 return NULL; 1550 } 1551 1552 return prop->type; 1553 } 1554 1555 Object *object_get_root(void) 1556 { 1557 static Object *root; 1558 1559 if (!root) { 1560 root = object_new("container"); 1561 } 1562 1563 return root; 1564 } 1565 1566 Object *object_get_objects_root(void) 1567 { 1568 return container_get(object_get_root(), "/objects"); 1569 } 1570 1571 Object *object_get_internal_root(void) 1572 { 1573 static Object *internal_root; 1574 1575 if (!internal_root) { 1576 internal_root = object_new("container"); 1577 } 1578 1579 return internal_root; 1580 } 1581 1582 static void object_get_child_property(Object *obj, Visitor *v, 1583 const char *name, void *opaque, 1584 Error **errp) 1585 { 1586 Object *child = opaque; 1587 gchar *path; 1588 1589 path = object_get_canonical_path(child); 1590 visit_type_str(v, name, &path, errp); 1591 g_free(path); 1592 } 1593 1594 static Object *object_resolve_child_property(Object *parent, void *opaque, const gchar *part) 1595 { 1596 return opaque; 1597 } 1598 1599 static void object_finalize_child_property(Object *obj, const char *name, 1600 void *opaque) 1601 { 1602 Object *child = opaque; 1603 1604 if (child->class->unparent) { 1605 (child->class->unparent)(child); 1606 } 1607 child->parent = NULL; 1608 object_unref(child); 1609 } 1610 1611 void object_property_add_child(Object *obj, const char *name, 1612 Object *child, Error **errp) 1613 { 1614 Error *local_err = NULL; 1615 gchar *type; 1616 ObjectProperty *op; 1617 1618 if (child->parent != NULL) { 1619 error_setg(errp, "child object is already parented"); 1620 return; 1621 } 1622 1623 type = g_strdup_printf("child<%s>", object_get_typename(OBJECT(child))); 1624 1625 op = object_property_add(obj, name, type, object_get_child_property, NULL, 1626 object_finalize_child_property, child, &local_err); 1627 if (local_err) { 1628 error_propagate(errp, local_err); 1629 goto out; 1630 } 1631 1632 op->resolve = object_resolve_child_property; 1633 object_ref(child); 1634 child->parent = obj; 1635 1636 out: 1637 g_free(type); 1638 } 1639 1640 void object_property_allow_set_link(const Object *obj, const char *name, 1641 Object *val, Error **errp) 1642 { 1643 /* Allow the link to be set, always */ 1644 } 1645 1646 typedef struct { 1647 Object **child; 1648 void (*check)(const Object *, const char *, Object *, Error **); 1649 ObjectPropertyLinkFlags flags; 1650 } LinkProperty; 1651 1652 static void object_get_link_property(Object *obj, Visitor *v, 1653 const char *name, void *opaque, 1654 Error **errp) 1655 { 1656 LinkProperty *lprop = opaque; 1657 Object **child = lprop->child; 1658 gchar *path; 1659 1660 if (*child) { 1661 path = object_get_canonical_path(*child); 1662 visit_type_str(v, name, &path, errp); 1663 g_free(path); 1664 } else { 1665 path = (gchar *)""; 1666 visit_type_str(v, name, &path, errp); 1667 } 1668 } 1669 1670 /* 1671 * object_resolve_link: 1672 * 1673 * Lookup an object and ensure its type matches the link property type. This 1674 * is similar to object_resolve_path() except type verification against the 1675 * link property is performed. 1676 * 1677 * Returns: The matched object or NULL on path lookup failures. 1678 */ 1679 static Object *object_resolve_link(Object *obj, const char *name, 1680 const char *path, Error **errp) 1681 { 1682 const char *type; 1683 gchar *target_type; 1684 bool ambiguous = false; 1685 Object *target; 1686 1687 /* Go from link<FOO> to FOO. */ 1688 type = object_property_get_type(obj, name, NULL); 1689 target_type = g_strndup(&type[5], strlen(type) - 6); 1690 target = object_resolve_path_type(path, target_type, &ambiguous); 1691 1692 if (ambiguous) { 1693 error_setg(errp, "Path '%s' does not uniquely identify an object", 1694 path); 1695 } else if (!target) { 1696 target = object_resolve_path(path, &ambiguous); 1697 if (target || ambiguous) { 1698 error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, target_type); 1699 } else { 1700 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND, 1701 "Device '%s' not found", path); 1702 } 1703 target = NULL; 1704 } 1705 g_free(target_type); 1706 1707 return target; 1708 } 1709 1710 static void object_set_link_property(Object *obj, Visitor *v, 1711 const char *name, void *opaque, 1712 Error **errp) 1713 { 1714 Error *local_err = NULL; 1715 LinkProperty *prop = opaque; 1716 Object **child = prop->child; 1717 Object *old_target = *child; 1718 Object *new_target = NULL; 1719 char *path = NULL; 1720 1721 visit_type_str(v, name, &path, &local_err); 1722 1723 if (!local_err && strcmp(path, "") != 0) { 1724 new_target = object_resolve_link(obj, name, path, &local_err); 1725 } 1726 1727 g_free(path); 1728 if (local_err) { 1729 error_propagate(errp, local_err); 1730 return; 1731 } 1732 1733 prop->check(obj, name, new_target, &local_err); 1734 if (local_err) { 1735 error_propagate(errp, local_err); 1736 return; 1737 } 1738 1739 *child = new_target; 1740 if (prop->flags == OBJ_PROP_LINK_STRONG) { 1741 object_ref(new_target); 1742 object_unref(old_target); 1743 } 1744 } 1745 1746 static Object *object_resolve_link_property(Object *parent, void *opaque, const gchar *part) 1747 { 1748 LinkProperty *lprop = opaque; 1749 1750 return *lprop->child; 1751 } 1752 1753 static void object_release_link_property(Object *obj, const char *name, 1754 void *opaque) 1755 { 1756 LinkProperty *prop = opaque; 1757 1758 if ((prop->flags & OBJ_PROP_LINK_STRONG) && *prop->child) { 1759 object_unref(*prop->child); 1760 } 1761 g_free(prop); 1762 } 1763 1764 void object_property_add_link(Object *obj, const char *name, 1765 const char *type, Object **child, 1766 void (*check)(const Object *, const char *, 1767 Object *, Error **), 1768 ObjectPropertyLinkFlags flags, 1769 Error **errp) 1770 { 1771 Error *local_err = NULL; 1772 LinkProperty *prop = g_malloc(sizeof(*prop)); 1773 gchar *full_type; 1774 ObjectProperty *op; 1775 1776 prop->child = child; 1777 prop->check = check; 1778 prop->flags = flags; 1779 1780 full_type = g_strdup_printf("link<%s>", type); 1781 1782 op = object_property_add(obj, name, full_type, 1783 object_get_link_property, 1784 check ? object_set_link_property : NULL, 1785 object_release_link_property, 1786 prop, 1787 &local_err); 1788 if (local_err) { 1789 error_propagate(errp, local_err); 1790 g_free(prop); 1791 goto out; 1792 } 1793 1794 op->resolve = object_resolve_link_property; 1795 1796 out: 1797 g_free(full_type); 1798 } 1799 1800 void object_property_add_const_link(Object *obj, const char *name, 1801 Object *target, Error **errp) 1802 { 1803 char *link_type; 1804 ObjectProperty *op; 1805 1806 link_type = g_strdup_printf("link<%s>", object_get_typename(target)); 1807 op = object_property_add(obj, name, link_type, 1808 object_get_child_property, NULL, 1809 NULL, target, errp); 1810 if (op != NULL) { 1811 op->resolve = object_resolve_child_property; 1812 } 1813 g_free(link_type); 1814 } 1815 1816 gchar *object_get_canonical_path_component(Object *obj) 1817 { 1818 ObjectProperty *prop = NULL; 1819 GHashTableIter iter; 1820 1821 if (obj->parent == NULL) { 1822 return NULL; 1823 } 1824 1825 g_hash_table_iter_init(&iter, obj->parent->properties); 1826 while (g_hash_table_iter_next(&iter, NULL, (gpointer *)&prop)) { 1827 if (!object_property_is_child(prop)) { 1828 continue; 1829 } 1830 1831 if (prop->opaque == obj) { 1832 return g_strdup(prop->name); 1833 } 1834 } 1835 1836 /* obj had a parent but was not a child, should never happen */ 1837 g_assert_not_reached(); 1838 return NULL; 1839 } 1840 1841 gchar *object_get_canonical_path(Object *obj) 1842 { 1843 Object *root = object_get_root(); 1844 char *newpath, *path = NULL; 1845 1846 if (obj == root) { 1847 return g_strdup("/"); 1848 } 1849 1850 do { 1851 char *component = object_get_canonical_path_component(obj); 1852 1853 if (!component) { 1854 /* A canonical path must be complete, so discard what was 1855 * collected so far. 1856 */ 1857 g_free(path); 1858 return NULL; 1859 } 1860 1861 newpath = g_strdup_printf("/%s%s", component, path ? path : ""); 1862 g_free(path); 1863 g_free(component); 1864 path = newpath; 1865 obj = obj->parent; 1866 } while (obj != root); 1867 1868 return path; 1869 } 1870 1871 Object *object_resolve_path_component(Object *parent, const gchar *part) 1872 { 1873 ObjectProperty *prop = object_property_find(parent, part, NULL); 1874 if (prop == NULL) { 1875 return NULL; 1876 } 1877 1878 if (prop->resolve) { 1879 return prop->resolve(parent, prop->opaque, part); 1880 } else { 1881 return NULL; 1882 } 1883 } 1884 1885 static Object *object_resolve_abs_path(Object *parent, 1886 gchar **parts, 1887 const char *typename, 1888 int index) 1889 { 1890 Object *child; 1891 1892 if (parts[index] == NULL) { 1893 return object_dynamic_cast(parent, typename); 1894 } 1895 1896 if (strcmp(parts[index], "") == 0) { 1897 return object_resolve_abs_path(parent, parts, typename, index + 1); 1898 } 1899 1900 child = object_resolve_path_component(parent, parts[index]); 1901 if (!child) { 1902 return NULL; 1903 } 1904 1905 return object_resolve_abs_path(child, parts, typename, index + 1); 1906 } 1907 1908 static Object *object_resolve_partial_path(Object *parent, 1909 gchar **parts, 1910 const char *typename, 1911 bool *ambiguous) 1912 { 1913 Object *obj; 1914 GHashTableIter iter; 1915 ObjectProperty *prop; 1916 1917 obj = object_resolve_abs_path(parent, parts, typename, 0); 1918 1919 g_hash_table_iter_init(&iter, parent->properties); 1920 while (g_hash_table_iter_next(&iter, NULL, (gpointer *)&prop)) { 1921 Object *found; 1922 1923 if (!object_property_is_child(prop)) { 1924 continue; 1925 } 1926 1927 found = object_resolve_partial_path(prop->opaque, parts, 1928 typename, ambiguous); 1929 if (found) { 1930 if (obj) { 1931 *ambiguous = true; 1932 return NULL; 1933 } 1934 obj = found; 1935 } 1936 1937 if (*ambiguous) { 1938 return NULL; 1939 } 1940 } 1941 1942 return obj; 1943 } 1944 1945 Object *object_resolve_path_type(const char *path, const char *typename, 1946 bool *ambiguousp) 1947 { 1948 Object *obj; 1949 gchar **parts; 1950 1951 parts = g_strsplit(path, "/", 0); 1952 assert(parts); 1953 1954 if (parts[0] == NULL || strcmp(parts[0], "") != 0) { 1955 bool ambiguous = false; 1956 obj = object_resolve_partial_path(object_get_root(), parts, 1957 typename, &ambiguous); 1958 if (ambiguousp) { 1959 *ambiguousp = ambiguous; 1960 } 1961 } else { 1962 obj = object_resolve_abs_path(object_get_root(), parts, typename, 1); 1963 } 1964 1965 g_strfreev(parts); 1966 1967 return obj; 1968 } 1969 1970 Object *object_resolve_path(const char *path, bool *ambiguous) 1971 { 1972 return object_resolve_path_type(path, TYPE_OBJECT, ambiguous); 1973 } 1974 1975 typedef struct StringProperty 1976 { 1977 char *(*get)(Object *, Error **); 1978 void (*set)(Object *, const char *, Error **); 1979 } StringProperty; 1980 1981 static void property_get_str(Object *obj, Visitor *v, const char *name, 1982 void *opaque, Error **errp) 1983 { 1984 StringProperty *prop = opaque; 1985 char *value; 1986 Error *err = NULL; 1987 1988 value = prop->get(obj, &err); 1989 if (err) { 1990 error_propagate(errp, err); 1991 return; 1992 } 1993 1994 visit_type_str(v, name, &value, errp); 1995 g_free(value); 1996 } 1997 1998 static void property_set_str(Object *obj, Visitor *v, const char *name, 1999 void *opaque, Error **errp) 2000 { 2001 StringProperty *prop = opaque; 2002 char *value; 2003 Error *local_err = NULL; 2004 2005 visit_type_str(v, name, &value, &local_err); 2006 if (local_err) { 2007 error_propagate(errp, local_err); 2008 return; 2009 } 2010 2011 prop->set(obj, value, errp); 2012 g_free(value); 2013 } 2014 2015 static void property_release_str(Object *obj, const char *name, 2016 void *opaque) 2017 { 2018 StringProperty *prop = opaque; 2019 g_free(prop); 2020 } 2021 2022 void object_property_add_str(Object *obj, const char *name, 2023 char *(*get)(Object *, Error **), 2024 void (*set)(Object *, const char *, Error **), 2025 Error **errp) 2026 { 2027 Error *local_err = NULL; 2028 StringProperty *prop = g_malloc0(sizeof(*prop)); 2029 2030 prop->get = get; 2031 prop->set = set; 2032 2033 object_property_add(obj, name, "string", 2034 get ? property_get_str : NULL, 2035 set ? property_set_str : NULL, 2036 property_release_str, 2037 prop, &local_err); 2038 if (local_err) { 2039 error_propagate(errp, local_err); 2040 g_free(prop); 2041 } 2042 } 2043 2044 void object_class_property_add_str(ObjectClass *klass, const char *name, 2045 char *(*get)(Object *, Error **), 2046 void (*set)(Object *, const char *, 2047 Error **), 2048 Error **errp) 2049 { 2050 Error *local_err = NULL; 2051 StringProperty *prop = g_malloc0(sizeof(*prop)); 2052 2053 prop->get = get; 2054 prop->set = set; 2055 2056 object_class_property_add(klass, name, "string", 2057 get ? property_get_str : NULL, 2058 set ? property_set_str : NULL, 2059 property_release_str, 2060 prop, &local_err); 2061 if (local_err) { 2062 error_propagate(errp, local_err); 2063 g_free(prop); 2064 } 2065 } 2066 2067 typedef struct BoolProperty 2068 { 2069 bool (*get)(Object *, Error **); 2070 void (*set)(Object *, bool, Error **); 2071 } BoolProperty; 2072 2073 static void property_get_bool(Object *obj, Visitor *v, const char *name, 2074 void *opaque, Error **errp) 2075 { 2076 BoolProperty *prop = opaque; 2077 bool value; 2078 Error *err = NULL; 2079 2080 value = prop->get(obj, &err); 2081 if (err) { 2082 error_propagate(errp, err); 2083 return; 2084 } 2085 2086 visit_type_bool(v, name, &value, errp); 2087 } 2088 2089 static void property_set_bool(Object *obj, Visitor *v, const char *name, 2090 void *opaque, Error **errp) 2091 { 2092 BoolProperty *prop = opaque; 2093 bool value; 2094 Error *local_err = NULL; 2095 2096 visit_type_bool(v, name, &value, &local_err); 2097 if (local_err) { 2098 error_propagate(errp, local_err); 2099 return; 2100 } 2101 2102 prop->set(obj, value, errp); 2103 } 2104 2105 static void property_release_bool(Object *obj, const char *name, 2106 void *opaque) 2107 { 2108 BoolProperty *prop = opaque; 2109 g_free(prop); 2110 } 2111 2112 void object_property_add_bool(Object *obj, const char *name, 2113 bool (*get)(Object *, Error **), 2114 void (*set)(Object *, bool, Error **), 2115 Error **errp) 2116 { 2117 Error *local_err = NULL; 2118 BoolProperty *prop = g_malloc0(sizeof(*prop)); 2119 2120 prop->get = get; 2121 prop->set = set; 2122 2123 object_property_add(obj, name, "bool", 2124 get ? property_get_bool : NULL, 2125 set ? property_set_bool : NULL, 2126 property_release_bool, 2127 prop, &local_err); 2128 if (local_err) { 2129 error_propagate(errp, local_err); 2130 g_free(prop); 2131 } 2132 } 2133 2134 void object_class_property_add_bool(ObjectClass *klass, const char *name, 2135 bool (*get)(Object *, Error **), 2136 void (*set)(Object *, bool, Error **), 2137 Error **errp) 2138 { 2139 Error *local_err = NULL; 2140 BoolProperty *prop = g_malloc0(sizeof(*prop)); 2141 2142 prop->get = get; 2143 prop->set = set; 2144 2145 object_class_property_add(klass, name, "bool", 2146 get ? property_get_bool : NULL, 2147 set ? property_set_bool : NULL, 2148 property_release_bool, 2149 prop, &local_err); 2150 if (local_err) { 2151 error_propagate(errp, local_err); 2152 g_free(prop); 2153 } 2154 } 2155 2156 static void property_get_enum(Object *obj, Visitor *v, const char *name, 2157 void *opaque, Error **errp) 2158 { 2159 EnumProperty *prop = opaque; 2160 int value; 2161 Error *err = NULL; 2162 2163 value = prop->get(obj, &err); 2164 if (err) { 2165 error_propagate(errp, err); 2166 return; 2167 } 2168 2169 visit_type_enum(v, name, &value, prop->lookup, errp); 2170 } 2171 2172 static void property_set_enum(Object *obj, Visitor *v, const char *name, 2173 void *opaque, Error **errp) 2174 { 2175 EnumProperty *prop = opaque; 2176 int value; 2177 Error *err = NULL; 2178 2179 visit_type_enum(v, name, &value, prop->lookup, &err); 2180 if (err) { 2181 error_propagate(errp, err); 2182 return; 2183 } 2184 prop->set(obj, value, errp); 2185 } 2186 2187 static void property_release_enum(Object *obj, const char *name, 2188 void *opaque) 2189 { 2190 EnumProperty *prop = opaque; 2191 g_free(prop); 2192 } 2193 2194 void object_property_add_enum(Object *obj, const char *name, 2195 const char *typename, 2196 const QEnumLookup *lookup, 2197 int (*get)(Object *, Error **), 2198 void (*set)(Object *, int, Error **), 2199 Error **errp) 2200 { 2201 Error *local_err = NULL; 2202 EnumProperty *prop = g_malloc(sizeof(*prop)); 2203 2204 prop->lookup = lookup; 2205 prop->get = get; 2206 prop->set = set; 2207 2208 object_property_add(obj, name, typename, 2209 get ? property_get_enum : NULL, 2210 set ? property_set_enum : NULL, 2211 property_release_enum, 2212 prop, &local_err); 2213 if (local_err) { 2214 error_propagate(errp, local_err); 2215 g_free(prop); 2216 } 2217 } 2218 2219 void object_class_property_add_enum(ObjectClass *klass, const char *name, 2220 const char *typename, 2221 const QEnumLookup *lookup, 2222 int (*get)(Object *, Error **), 2223 void (*set)(Object *, int, Error **), 2224 Error **errp) 2225 { 2226 Error *local_err = NULL; 2227 EnumProperty *prop = g_malloc(sizeof(*prop)); 2228 2229 prop->lookup = lookup; 2230 prop->get = get; 2231 prop->set = set; 2232 2233 object_class_property_add(klass, name, typename, 2234 get ? property_get_enum : NULL, 2235 set ? property_set_enum : NULL, 2236 property_release_enum, 2237 prop, &local_err); 2238 if (local_err) { 2239 error_propagate(errp, local_err); 2240 g_free(prop); 2241 } 2242 } 2243 2244 typedef struct TMProperty { 2245 void (*get)(Object *, struct tm *, Error **); 2246 } TMProperty; 2247 2248 static void property_get_tm(Object *obj, Visitor *v, const char *name, 2249 void *opaque, Error **errp) 2250 { 2251 TMProperty *prop = opaque; 2252 Error *err = NULL; 2253 struct tm value; 2254 2255 prop->get(obj, &value, &err); 2256 if (err) { 2257 goto out; 2258 } 2259 2260 visit_start_struct(v, name, NULL, 0, &err); 2261 if (err) { 2262 goto out; 2263 } 2264 visit_type_int32(v, "tm_year", &value.tm_year, &err); 2265 if (err) { 2266 goto out_end; 2267 } 2268 visit_type_int32(v, "tm_mon", &value.tm_mon, &err); 2269 if (err) { 2270 goto out_end; 2271 } 2272 visit_type_int32(v, "tm_mday", &value.tm_mday, &err); 2273 if (err) { 2274 goto out_end; 2275 } 2276 visit_type_int32(v, "tm_hour", &value.tm_hour, &err); 2277 if (err) { 2278 goto out_end; 2279 } 2280 visit_type_int32(v, "tm_min", &value.tm_min, &err); 2281 if (err) { 2282 goto out_end; 2283 } 2284 visit_type_int32(v, "tm_sec", &value.tm_sec, &err); 2285 if (err) { 2286 goto out_end; 2287 } 2288 visit_check_struct(v, &err); 2289 out_end: 2290 visit_end_struct(v, NULL); 2291 out: 2292 error_propagate(errp, err); 2293 2294 } 2295 2296 static void property_release_tm(Object *obj, const char *name, 2297 void *opaque) 2298 { 2299 TMProperty *prop = opaque; 2300 g_free(prop); 2301 } 2302 2303 void object_property_add_tm(Object *obj, const char *name, 2304 void (*get)(Object *, struct tm *, Error **), 2305 Error **errp) 2306 { 2307 Error *local_err = NULL; 2308 TMProperty *prop = g_malloc0(sizeof(*prop)); 2309 2310 prop->get = get; 2311 2312 object_property_add(obj, name, "struct tm", 2313 get ? property_get_tm : NULL, NULL, 2314 property_release_tm, 2315 prop, &local_err); 2316 if (local_err) { 2317 error_propagate(errp, local_err); 2318 g_free(prop); 2319 } 2320 } 2321 2322 void object_class_property_add_tm(ObjectClass *klass, const char *name, 2323 void (*get)(Object *, struct tm *, Error **), 2324 Error **errp) 2325 { 2326 Error *local_err = NULL; 2327 TMProperty *prop = g_malloc0(sizeof(*prop)); 2328 2329 prop->get = get; 2330 2331 object_class_property_add(klass, name, "struct tm", 2332 get ? property_get_tm : NULL, NULL, 2333 property_release_tm, 2334 prop, &local_err); 2335 if (local_err) { 2336 error_propagate(errp, local_err); 2337 g_free(prop); 2338 } 2339 } 2340 2341 static char *qdev_get_type(Object *obj, Error **errp) 2342 { 2343 return g_strdup(object_get_typename(obj)); 2344 } 2345 2346 static void property_get_uint8_ptr(Object *obj, Visitor *v, const char *name, 2347 void *opaque, Error **errp) 2348 { 2349 uint8_t value = *(uint8_t *)opaque; 2350 visit_type_uint8(v, name, &value, errp); 2351 } 2352 2353 static void property_get_uint16_ptr(Object *obj, Visitor *v, const char *name, 2354 void *opaque, Error **errp) 2355 { 2356 uint16_t value = *(uint16_t *)opaque; 2357 visit_type_uint16(v, name, &value, errp); 2358 } 2359 2360 static void property_get_uint32_ptr(Object *obj, Visitor *v, const char *name, 2361 void *opaque, Error **errp) 2362 { 2363 uint32_t value = *(uint32_t *)opaque; 2364 visit_type_uint32(v, name, &value, errp); 2365 } 2366 2367 static void property_get_uint64_ptr(Object *obj, Visitor *v, const char *name, 2368 void *opaque, Error **errp) 2369 { 2370 uint64_t value = *(uint64_t *)opaque; 2371 visit_type_uint64(v, name, &value, errp); 2372 } 2373 2374 void object_property_add_uint8_ptr(Object *obj, const char *name, 2375 const uint8_t *v, Error **errp) 2376 { 2377 object_property_add(obj, name, "uint8", property_get_uint8_ptr, 2378 NULL, NULL, (void *)v, errp); 2379 } 2380 2381 void object_class_property_add_uint8_ptr(ObjectClass *klass, const char *name, 2382 const uint8_t *v, Error **errp) 2383 { 2384 object_class_property_add(klass, name, "uint8", property_get_uint8_ptr, 2385 NULL, NULL, (void *)v, errp); 2386 } 2387 2388 void object_property_add_uint16_ptr(Object *obj, const char *name, 2389 const uint16_t *v, Error **errp) 2390 { 2391 object_property_add(obj, name, "uint16", property_get_uint16_ptr, 2392 NULL, NULL, (void *)v, errp); 2393 } 2394 2395 void object_class_property_add_uint16_ptr(ObjectClass *klass, const char *name, 2396 const uint16_t *v, Error **errp) 2397 { 2398 object_class_property_add(klass, name, "uint16", property_get_uint16_ptr, 2399 NULL, NULL, (void *)v, errp); 2400 } 2401 2402 void object_property_add_uint32_ptr(Object *obj, const char *name, 2403 const uint32_t *v, Error **errp) 2404 { 2405 object_property_add(obj, name, "uint32", property_get_uint32_ptr, 2406 NULL, NULL, (void *)v, errp); 2407 } 2408 2409 void object_class_property_add_uint32_ptr(ObjectClass *klass, const char *name, 2410 const uint32_t *v, Error **errp) 2411 { 2412 object_class_property_add(klass, name, "uint32", property_get_uint32_ptr, 2413 NULL, NULL, (void *)v, errp); 2414 } 2415 2416 void object_property_add_uint64_ptr(Object *obj, const char *name, 2417 const uint64_t *v, Error **errp) 2418 { 2419 object_property_add(obj, name, "uint64", property_get_uint64_ptr, 2420 NULL, NULL, (void *)v, errp); 2421 } 2422 2423 void object_class_property_add_uint64_ptr(ObjectClass *klass, const char *name, 2424 const uint64_t *v, Error **errp) 2425 { 2426 object_class_property_add(klass, name, "uint64", property_get_uint64_ptr, 2427 NULL, NULL, (void *)v, errp); 2428 } 2429 2430 typedef struct { 2431 Object *target_obj; 2432 char *target_name; 2433 } AliasProperty; 2434 2435 static void property_get_alias(Object *obj, Visitor *v, const char *name, 2436 void *opaque, Error **errp) 2437 { 2438 AliasProperty *prop = opaque; 2439 2440 object_property_get(prop->target_obj, v, prop->target_name, errp); 2441 } 2442 2443 static void property_set_alias(Object *obj, Visitor *v, const char *name, 2444 void *opaque, Error **errp) 2445 { 2446 AliasProperty *prop = opaque; 2447 2448 object_property_set(prop->target_obj, v, prop->target_name, errp); 2449 } 2450 2451 static Object *property_resolve_alias(Object *obj, void *opaque, 2452 const gchar *part) 2453 { 2454 AliasProperty *prop = opaque; 2455 2456 return object_resolve_path_component(prop->target_obj, prop->target_name); 2457 } 2458 2459 static void property_release_alias(Object *obj, const char *name, void *opaque) 2460 { 2461 AliasProperty *prop = opaque; 2462 2463 g_free(prop->target_name); 2464 g_free(prop); 2465 } 2466 2467 void object_property_add_alias(Object *obj, const char *name, 2468 Object *target_obj, const char *target_name, 2469 Error **errp) 2470 { 2471 AliasProperty *prop; 2472 ObjectProperty *op; 2473 ObjectProperty *target_prop; 2474 gchar *prop_type; 2475 Error *local_err = NULL; 2476 2477 target_prop = object_property_find(target_obj, target_name, errp); 2478 if (!target_prop) { 2479 return; 2480 } 2481 2482 if (object_property_is_child(target_prop)) { 2483 prop_type = g_strdup_printf("link%s", 2484 target_prop->type + strlen("child")); 2485 } else { 2486 prop_type = g_strdup(target_prop->type); 2487 } 2488 2489 prop = g_malloc(sizeof(*prop)); 2490 prop->target_obj = target_obj; 2491 prop->target_name = g_strdup(target_name); 2492 2493 op = object_property_add(obj, name, prop_type, 2494 property_get_alias, 2495 property_set_alias, 2496 property_release_alias, 2497 prop, &local_err); 2498 if (local_err) { 2499 error_propagate(errp, local_err); 2500 g_free(prop); 2501 goto out; 2502 } 2503 op->resolve = property_resolve_alias; 2504 2505 object_property_set_description(obj, op->name, 2506 target_prop->description, 2507 &error_abort); 2508 2509 out: 2510 g_free(prop_type); 2511 } 2512 2513 void object_property_set_description(Object *obj, const char *name, 2514 const char *description, Error **errp) 2515 { 2516 ObjectProperty *op; 2517 2518 op = object_property_find(obj, name, errp); 2519 if (!op) { 2520 return; 2521 } 2522 2523 g_free(op->description); 2524 op->description = g_strdup(description); 2525 } 2526 2527 void object_class_property_set_description(ObjectClass *klass, 2528 const char *name, 2529 const char *description, 2530 Error **errp) 2531 { 2532 ObjectProperty *op; 2533 2534 op = g_hash_table_lookup(klass->properties, name); 2535 if (!op) { 2536 error_setg(errp, "Property '.%s' not found", name); 2537 return; 2538 } 2539 2540 g_free(op->description); 2541 op->description = g_strdup(description); 2542 } 2543 2544 static void object_class_init(ObjectClass *klass, void *data) 2545 { 2546 object_class_property_add_str(klass, "type", qdev_get_type, 2547 NULL, &error_abort); 2548 } 2549 2550 static void register_types(void) 2551 { 2552 static TypeInfo interface_info = { 2553 .name = TYPE_INTERFACE, 2554 .class_size = sizeof(InterfaceClass), 2555 .abstract = true, 2556 }; 2557 2558 static TypeInfo object_info = { 2559 .name = TYPE_OBJECT, 2560 .instance_size = sizeof(Object), 2561 .class_init = object_class_init, 2562 .abstract = true, 2563 }; 2564 2565 type_interface = type_register_internal(&interface_info); 2566 type_register_internal(&object_info); 2567 } 2568 2569 type_init(register_types) 2570