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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/qobject-input-visitor.h"
23#include "qapi/forward-visitor.h"
24#include "qapi/qapi-builtin-visit.h"
25#include "qapi/qmp/qerror.h"
26#include "qapi/qmp/qjson.h"
27#include "trace.h"
28
29
30
31#include "qom/qom-qobject.h"
32#include "qapi/qmp/qbool.h"
33#include "qapi/qmp/qnum.h"
34#include "qapi/qmp/qstring.h"
35#include "qemu/error-report.h"
36
37#define MAX_INTERFACES 32
38
39typedef struct InterfaceImpl InterfaceImpl;
40typedef struct TypeImpl TypeImpl;
41
42struct InterfaceImpl
43{
44 const char *typename;
45};
46
47struct TypeImpl
48{
49 const char *name;
50
51 size_t class_size;
52
53 size_t instance_size;
54 size_t instance_align;
55
56 void (*class_init)(ObjectClass *klass, void *data);
57 void (*class_base_init)(ObjectClass *klass, void *data);
58
59 void *class_data;
60
61 void (*instance_init)(Object *obj);
62 void (*instance_post_init)(Object *obj);
63 void (*instance_finalize)(Object *obj);
64
65 bool abstract;
66
67 const char *parent;
68 TypeImpl *parent_type;
69
70 ObjectClass *class;
71
72 int num_interfaces;
73 InterfaceImpl interfaces[MAX_INTERFACES];
74};
75
76static Type type_interface;
77
78static GHashTable *type_table_get(void)
79{
80 static GHashTable *type_table;
81
82 if (type_table == NULL) {
83 type_table = g_hash_table_new(g_str_hash, g_str_equal);
84 }
85
86 return type_table;
87}
88
89static bool enumerating_types;
90
91static void type_table_add(TypeImpl *ti)
92{
93 assert(!enumerating_types);
94 g_hash_table_insert(type_table_get(), (void *)ti->name, ti);
95}
96
97static TypeImpl *type_table_lookup(const char *name)
98{
99 return g_hash_table_lookup(type_table_get(), name);
100}
101
102static TypeImpl *type_new(const TypeInfo *info)
103{
104 TypeImpl *ti = g_malloc0(sizeof(*ti));
105 int i;
106
107 g_assert(info->name != NULL);
108
109 if (type_table_lookup(info->name) != NULL) {
110 fprintf(stderr, "Registering `%s' which already exists\n", info->name);
111 abort();
112 }
113
114 ti->name = g_strdup(info->name);
115 ti->parent = g_strdup(info->parent);
116
117 ti->class_size = info->class_size;
118 ti->instance_size = info->instance_size;
119 ti->instance_align = info->instance_align;
120
121 ti->class_init = info->class_init;
122 ti->class_base_init = info->class_base_init;
123 ti->class_data = info->class_data;
124
125 ti->instance_init = info->instance_init;
126 ti->instance_post_init = info->instance_post_init;
127 ti->instance_finalize = info->instance_finalize;
128
129 ti->abstract = info->abstract;
130
131 for (i = 0; info->interfaces && info->interfaces[i].type; i++) {
132 ti->interfaces[i].typename = g_strdup(info->interfaces[i].type);
133 }
134 ti->num_interfaces = i;
135
136 return ti;
137}
138
139static TypeImpl *type_register_internal(const TypeInfo *info)
140{
141 TypeImpl *ti;
142 ti = type_new(info);
143
144 type_table_add(ti);
145 return ti;
146}
147
148TypeImpl *type_register(const TypeInfo *info)
149{
150 assert(info->parent);
151 return type_register_internal(info);
152}
153
154TypeImpl *type_register_static(const TypeInfo *info)
155{
156 return type_register(info);
157}
158
159void type_register_static_array(const TypeInfo *infos, int nr_infos)
160{
161 int i;
162
163 for (i = 0; i < nr_infos; i++) {
164 type_register_static(&infos[i]);
165 }
166}
167
168static TypeImpl *type_get_by_name(const char *name)
169{
170 if (name == NULL) {
171 return NULL;
172 }
173
174 return type_table_lookup(name);
175}
176
177static TypeImpl *type_get_parent(TypeImpl *type)
178{
179 if (!type->parent_type && type->parent) {
180 type->parent_type = type_get_by_name(type->parent);
181 if (!type->parent_type) {
182 fprintf(stderr, "Type '%s' is missing its parent '%s'\n",
183 type->name, type->parent);
184 abort();
185 }
186 }
187
188 return type->parent_type;
189}
190
191static bool type_has_parent(TypeImpl *type)
192{
193 return (type->parent != NULL);
194}
195
196static size_t type_class_get_size(TypeImpl *ti)
197{
198 if (ti->class_size) {
199 return ti->class_size;
200 }
201
202 if (type_has_parent(ti)) {
203 return type_class_get_size(type_get_parent(ti));
204 }
205
206 return sizeof(ObjectClass);
207}
208
209static size_t type_object_get_size(TypeImpl *ti)
210{
211 if (ti->instance_size) {
212 return ti->instance_size;
213 }
214
215 if (type_has_parent(ti)) {
216 return type_object_get_size(type_get_parent(ti));
217 }
218
219 return 0;
220}
221
222size_t object_type_get_instance_size(const char *typename)
223{
224 TypeImpl *type = type_get_by_name(typename);
225
226 g_assert(type != NULL);
227 return type_object_get_size(type);
228}
229
230static bool type_is_ancestor(TypeImpl *type, TypeImpl *target_type)
231{
232 assert(target_type);
233
234
235 while (type) {
236 if (type == target_type) {
237 return true;
238 }
239
240 type = type_get_parent(type);
241 }
242
243 return false;
244}
245
246static void type_initialize(TypeImpl *ti);
247
248static void type_initialize_interface(TypeImpl *ti, TypeImpl *interface_type,
249 TypeImpl *parent_type)
250{
251 InterfaceClass *new_iface;
252 TypeInfo info = { };
253 TypeImpl *iface_impl;
254
255 info.parent = parent_type->name;
256 info.name = g_strdup_printf("%s::%s", ti->name, interface_type->name);
257 info.abstract = true;
258
259 iface_impl = type_new(&info);
260 iface_impl->parent_type = parent_type;
261 type_initialize(iface_impl);
262 g_free((char *)info.name);
263
264 new_iface = (InterfaceClass *)iface_impl->class;
265 new_iface->concrete_class = ti->class;
266 new_iface->interface_type = interface_type;
267
268 ti->class->interfaces = g_slist_append(ti->class->interfaces, new_iface);
269}
270
271static void object_property_free(gpointer data)
272{
273 ObjectProperty *prop = data;
274
275 if (prop->defval) {
276 qobject_unref(prop->defval);
277 prop->defval = NULL;
278 }
279 g_free(prop->name);
280 g_free(prop->type);
281 g_free(prop->description);
282 g_free(prop);
283}
284
285static void type_initialize(TypeImpl *ti)
286{
287 TypeImpl *parent;
288
289 if (ti->class) {
290 return;
291 }
292
293 ti->class_size = type_class_get_size(ti);
294 ti->instance_size = type_object_get_size(ti);
295
296
297
298 if (ti->instance_size == 0) {
299 ti->abstract = true;
300 }
301 if (type_is_ancestor(ti, type_interface)) {
302 assert(ti->instance_size == 0);
303 assert(ti->abstract);
304 assert(!ti->instance_init);
305 assert(!ti->instance_post_init);
306 assert(!ti->instance_finalize);
307 assert(!ti->num_interfaces);
308 }
309 ti->class = g_malloc0(ti->class_size);
310
311 parent = type_get_parent(ti);
312 if (parent) {
313 type_initialize(parent);
314 GSList *e;
315 int i;
316
317 g_assert(parent->class_size <= ti->class_size);
318 g_assert(parent->instance_size <= ti->instance_size);
319 memcpy(ti->class, parent->class, parent->class_size);
320 ti->class->interfaces = NULL;
321
322 for (e = parent->class->interfaces; e; e = e->next) {
323 InterfaceClass *iface = e->data;
324 ObjectClass *klass = OBJECT_CLASS(iface);
325
326 type_initialize_interface(ti, iface->interface_type, klass->type);
327 }
328
329 for (i = 0; i < ti->num_interfaces; i++) {
330 TypeImpl *t = type_get_by_name(ti->interfaces[i].typename);
331 if (!t) {
332 error_report("missing interface '%s' for object '%s'",
333 ti->interfaces[i].typename, parent->name);
334 abort();
335 }
336 for (e = ti->class->interfaces; e; e = e->next) {
337 TypeImpl *target_type = OBJECT_CLASS(e->data)->type;
338
339 if (type_is_ancestor(target_type, t)) {
340 break;
341 }
342 }
343
344 if (e) {
345 continue;
346 }
347
348 type_initialize_interface(ti, t, t);
349 }
350 }
351
352 ti->class->properties = g_hash_table_new_full(g_str_hash, g_str_equal, NULL,
353 object_property_free);
354
355 ti->class->type = ti;
356
357 while (parent) {
358 if (parent->class_base_init) {
359 parent->class_base_init(ti->class, ti->class_data);
360 }
361 parent = type_get_parent(parent);
362 }
363
364 if (ti->class_init) {
365 ti->class_init(ti->class, ti->class_data);
366 }
367}
368
369static void object_init_with_type(Object *obj, TypeImpl *ti)
370{
371 if (type_has_parent(ti)) {
372 object_init_with_type(obj, type_get_parent(ti));
373 }
374
375 if (ti->instance_init) {
376 ti->instance_init(obj);
377 }
378}
379
380static void object_post_init_with_type(Object *obj, TypeImpl *ti)
381{
382 if (ti->instance_post_init) {
383 ti->instance_post_init(obj);
384 }
385
386 if (type_has_parent(ti)) {
387 object_post_init_with_type(obj, type_get_parent(ti));
388 }
389}
390
391bool object_apply_global_props(Object *obj, const GPtrArray *props,
392 Error **errp)
393{
394 int i;
395
396 if (!props) {
397 return true;
398 }
399
400 for (i = 0; i < props->len; i++) {
401 GlobalProperty *p = g_ptr_array_index(props, i);
402 Error *err = NULL;
403
404 if (object_dynamic_cast(obj, p->driver) == NULL) {
405 continue;
406 }
407 if (p->optional && !object_property_find(obj, p->property)) {
408 continue;
409 }
410 p->used = true;
411 if (!object_property_parse(obj, p->property, p->value, &err)) {
412 error_prepend(&err, "can't apply global %s.%s=%s: ",
413 p->driver, p->property, p->value);
414
415
416
417
418
419 if (errp) {
420 error_propagate(errp, err);
421 return false;
422 } else {
423 warn_report_err(err);
424 }
425 }
426 }
427
428 return true;
429}
430
431
432
433
434
435
436
437
438
439static GPtrArray *object_compat_props[3];
440
441
442
443
444
445
446void object_register_sugar_prop(const char *driver, const char *prop,
447 const char *value, bool optional)
448{
449 GlobalProperty *g;
450 if (!object_compat_props[2]) {
451 object_compat_props[2] = g_ptr_array_new();
452 }
453 g = g_new0(GlobalProperty, 1);
454 g->driver = g_strdup(driver);
455 g->property = g_strdup(prop);
456 g->value = g_strdup(value);
457 g->optional = optional;
458 g_ptr_array_add(object_compat_props[2], g);
459}
460
461
462
463
464
465void object_set_machine_compat_props(GPtrArray *compat_props)
466{
467 assert(!object_compat_props[1]);
468 object_compat_props[1] = compat_props;
469}
470
471
472
473
474
475void object_set_accelerator_compat_props(GPtrArray *compat_props)
476{
477 assert(!object_compat_props[0]);
478 object_compat_props[0] = compat_props;
479}
480
481void object_apply_compat_props(Object *obj)
482{
483 int i;
484
485 for (i = 0; i < ARRAY_SIZE(object_compat_props); i++) {
486 object_apply_global_props(obj, object_compat_props[i],
487 i == 2 ? &error_fatal : &error_abort);
488 }
489}
490
491static void object_class_property_init_all(Object *obj)
492{
493 ObjectPropertyIterator iter;
494 ObjectProperty *prop;
495
496 object_class_property_iter_init(&iter, object_get_class(obj));
497 while ((prop = object_property_iter_next(&iter))) {
498 if (prop->init) {
499 prop->init(obj, prop);
500 }
501 }
502}
503
504static void object_initialize_with_type(Object *obj, size_t size, TypeImpl *type)
505{
506 type_initialize(type);
507
508 g_assert(type->instance_size >= sizeof(Object));
509 g_assert(type->abstract == false);
510 g_assert(size >= type->instance_size);
511
512 memset(obj, 0, type->instance_size);
513 obj->class = type->class;
514 object_ref(obj);
515 object_class_property_init_all(obj);
516 obj->properties = g_hash_table_new_full(g_str_hash, g_str_equal,
517 NULL, object_property_free);
518 object_init_with_type(obj, type);
519 object_post_init_with_type(obj, type);
520}
521
522void object_initialize(void *data, size_t size, const char *typename)
523{
524 TypeImpl *type = type_get_by_name(typename);
525
526#ifdef CONFIG_MODULES
527 if (!type) {
528 module_load_qom_one(typename);
529 type = type_get_by_name(typename);
530 }
531#endif
532 if (!type) {
533 error_report("missing object type '%s'", typename);
534 abort();
535 }
536
537 object_initialize_with_type(data, size, type);
538}
539
540bool object_initialize_child_with_props(Object *parentobj,
541 const char *propname,
542 void *childobj, size_t size,
543 const char *type,
544 Error **errp, ...)
545{
546 va_list vargs;
547 bool ok;
548
549 va_start(vargs, errp);
550 ok = object_initialize_child_with_propsv(parentobj, propname,
551 childobj, size, type, errp,
552 vargs);
553 va_end(vargs);
554 return ok;
555}
556
557bool object_initialize_child_with_propsv(Object *parentobj,
558 const char *propname,
559 void *childobj, size_t size,
560 const char *type,
561 Error **errp, va_list vargs)
562{
563 bool ok = false;
564 Object *obj;
565 UserCreatable *uc;
566
567 object_initialize(childobj, size, type);
568 obj = OBJECT(childobj);
569
570 if (!object_set_propv(obj, errp, vargs)) {
571 goto out;
572 }
573
574 object_property_add_child(parentobj, propname, obj);
575
576 uc = (UserCreatable *)object_dynamic_cast(obj, TYPE_USER_CREATABLE);
577 if (uc) {
578 if (!user_creatable_complete(uc, errp)) {
579 object_unparent(obj);
580 goto out;
581 }
582 }
583
584 ok = true;
585
586out:
587
588
589
590
591
592
593
594
595 object_unref(obj);
596 return ok;
597}
598
599void object_initialize_child_internal(Object *parent,
600 const char *propname,
601 void *child, size_t size,
602 const char *type)
603{
604 object_initialize_child_with_props(parent, propname, child, size, type,
605 &error_abort, NULL);
606}
607
608static inline bool object_property_is_child(ObjectProperty *prop)
609{
610 return strstart(prop->type, "child<", NULL);
611}
612
613static void object_property_del_all(Object *obj)
614{
615 g_autoptr(GHashTable) done = g_hash_table_new(NULL, NULL);
616 ObjectProperty *prop;
617 ObjectPropertyIterator iter;
618 bool released;
619
620 do {
621 released = false;
622 object_property_iter_init(&iter, obj);
623 while ((prop = object_property_iter_next(&iter)) != NULL) {
624 if (g_hash_table_add(done, prop)) {
625 if (prop->release) {
626 prop->release(obj, prop->name, prop->opaque);
627 released = true;
628 break;
629 }
630 }
631 }
632 } while (released);
633
634 g_hash_table_unref(obj->properties);
635}
636
637static void object_property_del_child(Object *obj, Object *child)
638{
639 ObjectProperty *prop;
640 GHashTableIter iter;
641 gpointer key, value;
642
643 g_hash_table_iter_init(&iter, obj->properties);
644 while (g_hash_table_iter_next(&iter, &key, &value)) {
645 prop = value;
646 if (object_property_is_child(prop) && prop->opaque == child) {
647 if (prop->release) {
648 prop->release(obj, prop->name, prop->opaque);
649 prop->release = NULL;
650 }
651 break;
652 }
653 }
654 g_hash_table_iter_init(&iter, obj->properties);
655 while (g_hash_table_iter_next(&iter, &key, &value)) {
656 prop = value;
657 if (object_property_is_child(prop) && prop->opaque == child) {
658 g_hash_table_iter_remove(&iter);
659 break;
660 }
661 }
662}
663
664void object_unparent(Object *obj)
665{
666 if (obj->parent) {
667 object_property_del_child(obj->parent, obj);
668 }
669}
670
671static void object_deinit(Object *obj, TypeImpl *type)
672{
673 if (type->instance_finalize) {
674 type->instance_finalize(obj);
675 }
676
677 if (type_has_parent(type)) {
678 object_deinit(obj, type_get_parent(type));
679 }
680}
681
682static void object_finalize(void *data)
683{
684 Object *obj = data;
685 TypeImpl *ti = obj->class->type;
686
687 object_property_del_all(obj);
688 object_deinit(obj, ti);
689
690 g_assert(obj->ref == 0);
691 g_assert(obj->parent == NULL);
692 if (obj->free) {
693 obj->free(obj);
694 }
695}
696
697
698#if __STDC_VERSION__ >= 201112L
699typedef max_align_t qemu_max_align_t;
700#else
701typedef union {
702 long l;
703 void *p;
704 double d;
705 long double ld;
706} qemu_max_align_t;
707#endif
708
709static Object *object_new_with_type(Type type)
710{
711 Object *obj;
712 size_t size, align;
713 void (*obj_free)(void *);
714
715 g_assert(type != NULL);
716 type_initialize(type);
717
718 size = type->instance_size;
719 align = type->instance_align;
720
721
722
723
724
725 if (likely(align <= __alignof__(qemu_max_align_t))) {
726 obj = g_malloc(size);
727 obj_free = g_free;
728 } else {
729 obj = qemu_memalign(align, size);
730 obj_free = qemu_vfree;
731 }
732
733 object_initialize_with_type(obj, size, type);
734 obj->free = obj_free;
735
736 return obj;
737}
738
739Object *object_new_with_class(ObjectClass *klass)
740{
741 return object_new_with_type(klass->type);
742}
743
744Object *object_new(const char *typename)
745{
746 TypeImpl *ti = type_get_by_name(typename);
747
748 return object_new_with_type(ti);
749}
750
751
752Object *object_new_with_props(const char *typename,
753 Object *parent,
754 const char *id,
755 Error **errp,
756 ...)
757{
758 va_list vargs;
759 Object *obj;
760
761 va_start(vargs, errp);
762 obj = object_new_with_propv(typename, parent, id, errp, vargs);
763 va_end(vargs);
764
765 return obj;
766}
767
768
769Object *object_new_with_propv(const char *typename,
770 Object *parent,
771 const char *id,
772 Error **errp,
773 va_list vargs)
774{
775 Object *obj;
776 ObjectClass *klass;
777 UserCreatable *uc;
778
779 klass = object_class_by_name(typename);
780 if (!klass) {
781 error_setg(errp, "invalid object type: %s", typename);
782 return NULL;
783 }
784
785 if (object_class_is_abstract(klass)) {
786 error_setg(errp, "object type '%s' is abstract", typename);
787 return NULL;
788 }
789 obj = object_new_with_type(klass->type);
790
791 if (!object_set_propv(obj, errp, vargs)) {
792 goto error;
793 }
794
795 if (id != NULL) {
796 object_property_add_child(parent, id, obj);
797 }
798
799 uc = (UserCreatable *)object_dynamic_cast(obj, TYPE_USER_CREATABLE);
800 if (uc) {
801 if (!user_creatable_complete(uc, errp)) {
802 if (id != NULL) {
803 object_unparent(obj);
804 }
805 goto error;
806 }
807 }
808
809 object_unref(obj);
810 return obj;
811
812 error:
813 object_unref(obj);
814 return NULL;
815}
816
817
818bool object_set_props(Object *obj,
819 Error **errp,
820 ...)
821{
822 va_list vargs;
823 bool ret;
824
825 va_start(vargs, errp);
826 ret = object_set_propv(obj, errp, vargs);
827 va_end(vargs);
828
829 return ret;
830}
831
832
833bool object_set_propv(Object *obj,
834 Error **errp,
835 va_list vargs)
836{
837 const char *propname;
838
839 propname = va_arg(vargs, char *);
840 while (propname != NULL) {
841 const char *value = va_arg(vargs, char *);
842
843 g_assert(value != NULL);
844 if (!object_property_parse(obj, propname, value, errp)) {
845 return false;
846 }
847 propname = va_arg(vargs, char *);
848 }
849
850 return true;
851}
852
853
854Object *object_dynamic_cast(Object *obj, const char *typename)
855{
856 if (obj && object_class_dynamic_cast(object_get_class(obj), typename)) {
857 return obj;
858 }
859
860 return NULL;
861}
862
863Object *object_dynamic_cast_assert(Object *obj, const char *typename,
864 const char *file, int line, const char *func)
865{
866 trace_object_dynamic_cast_assert(obj ? obj->class->type->name : "(null)",
867 typename, file, line, func);
868
869#ifdef CONFIG_QOM_CAST_DEBUG
870 int i;
871 Object *inst;
872
873 for (i = 0; obj && i < OBJECT_CLASS_CAST_CACHE; i++) {
874 if (qatomic_read(&obj->class->object_cast_cache[i]) == typename) {
875 goto out;
876 }
877 }
878
879 inst = object_dynamic_cast(obj, typename);
880
881 if (!inst && obj) {
882 fprintf(stderr, "%s:%d:%s: Object %p is not an instance of type %s\n",
883 file, line, func, obj, typename);
884 abort();
885 }
886
887 assert(obj == inst);
888
889 if (obj && obj == inst) {
890 for (i = 1; i < OBJECT_CLASS_CAST_CACHE; i++) {
891 qatomic_set(&obj->class->object_cast_cache[i - 1],
892 qatomic_read(&obj->class->object_cast_cache[i]));
893 }
894 qatomic_set(&obj->class->object_cast_cache[i - 1], typename);
895 }
896
897out:
898#endif
899 return obj;
900}
901
902ObjectClass *object_class_dynamic_cast(ObjectClass *class,
903 const char *typename)
904{
905 ObjectClass *ret = NULL;
906 TypeImpl *target_type;
907 TypeImpl *type;
908
909 if (!class) {
910 return NULL;
911 }
912
913
914 type = class->type;
915 if (type->name == typename) {
916 return class;
917 }
918
919 target_type = type_get_by_name(typename);
920 if (!target_type) {
921
922 return NULL;
923 }
924
925 if (type->class->interfaces &&
926 type_is_ancestor(target_type, type_interface)) {
927 int found = 0;
928 GSList *i;
929
930 for (i = class->interfaces; i; i = i->next) {
931 ObjectClass *target_class = i->data;
932
933 if (type_is_ancestor(target_class->type, target_type)) {
934 ret = target_class;
935 found++;
936 }
937 }
938
939
940 if (found > 1) {
941 ret = NULL;
942 }
943 } else if (type_is_ancestor(type, target_type)) {
944 ret = class;
945 }
946
947 return ret;
948}
949
950ObjectClass *object_class_dynamic_cast_assert(ObjectClass *class,
951 const char *typename,
952 const char *file, int line,
953 const char *func)
954{
955 ObjectClass *ret;
956
957 trace_object_class_dynamic_cast_assert(class ? class->type->name : "(null)",
958 typename, file, line, func);
959
960#ifdef CONFIG_QOM_CAST_DEBUG
961 int i;
962
963 for (i = 0; class && i < OBJECT_CLASS_CAST_CACHE; i++) {
964 if (qatomic_read(&class->class_cast_cache[i]) == typename) {
965 ret = class;
966 goto out;
967 }
968 }
969#else
970 if (!class || !class->interfaces) {
971 return class;
972 }
973#endif
974
975 ret = object_class_dynamic_cast(class, typename);
976 if (!ret && class) {
977 fprintf(stderr, "%s:%d:%s: Object %p is not an instance of type %s\n",
978 file, line, func, class, typename);
979 abort();
980 }
981
982#ifdef CONFIG_QOM_CAST_DEBUG
983 if (class && ret == class) {
984 for (i = 1; i < OBJECT_CLASS_CAST_CACHE; i++) {
985 qatomic_set(&class->class_cast_cache[i - 1],
986 qatomic_read(&class->class_cast_cache[i]));
987 }
988 qatomic_set(&class->class_cast_cache[i - 1], typename);
989 }
990out:
991#endif
992 return ret;
993}
994
995const char *object_get_typename(const Object *obj)
996{
997 return obj->class->type->name;
998}
999
1000ObjectClass *object_get_class(Object *obj)
1001{
1002 return obj->class;
1003}
1004
1005bool object_class_is_abstract(ObjectClass *klass)
1006{
1007 return klass->type->abstract;
1008}
1009
1010const char *object_class_get_name(ObjectClass *klass)
1011{
1012 return klass->type->name;
1013}
1014
1015ObjectClass *object_class_by_name(const char *typename)
1016{
1017 TypeImpl *type = type_get_by_name(typename);
1018
1019 if (!type) {
1020 return NULL;
1021 }
1022
1023 type_initialize(type);
1024
1025 return type->class;
1026}
1027
1028ObjectClass *module_object_class_by_name(const char *typename)
1029{
1030 ObjectClass *oc;
1031
1032 oc = object_class_by_name(typename);
1033#ifdef CONFIG_MODULES
1034 if (!oc) {
1035 module_load_qom_one(typename);
1036 oc = object_class_by_name(typename);
1037 }
1038#endif
1039 return oc;
1040}
1041
1042ObjectClass *object_class_get_parent(ObjectClass *class)
1043{
1044 TypeImpl *type = type_get_parent(class->type);
1045
1046 if (!type) {
1047 return NULL;
1048 }
1049
1050 type_initialize(type);
1051
1052 return type->class;
1053}
1054
1055typedef struct OCFData
1056{
1057 void (*fn)(ObjectClass *klass, void *opaque);
1058 const char *implements_type;
1059 bool include_abstract;
1060 void *opaque;
1061} OCFData;
1062
1063static void object_class_foreach_tramp(gpointer key, gpointer value,
1064 gpointer opaque)
1065{
1066 OCFData *data = opaque;
1067 TypeImpl *type = value;
1068 ObjectClass *k;
1069
1070 type_initialize(type);
1071 k = type->class;
1072
1073 if (!data->include_abstract && type->abstract) {
1074 return;
1075 }
1076
1077 if (data->implements_type &&
1078 !object_class_dynamic_cast(k, data->implements_type)) {
1079 return;
1080 }
1081
1082 data->fn(k, data->opaque);
1083}
1084
1085void object_class_foreach(void (*fn)(ObjectClass *klass, void *opaque),
1086 const char *implements_type, bool include_abstract,
1087 void *opaque)
1088{
1089 OCFData data = { fn, implements_type, include_abstract, opaque };
1090
1091 enumerating_types = true;
1092 g_hash_table_foreach(type_table_get(), object_class_foreach_tramp, &data);
1093 enumerating_types = false;
1094}
1095
1096static int do_object_child_foreach(Object *obj,
1097 int (*fn)(Object *child, void *opaque),
1098 void *opaque, bool recurse)
1099{
1100 GHashTableIter iter;
1101 ObjectProperty *prop;
1102 int ret = 0;
1103
1104 g_hash_table_iter_init(&iter, obj->properties);
1105 while (g_hash_table_iter_next(&iter, NULL, (gpointer *)&prop)) {
1106 if (object_property_is_child(prop)) {
1107 Object *child = prop->opaque;
1108
1109 ret = fn(child, opaque);
1110 if (ret != 0) {
1111 break;
1112 }
1113 if (recurse) {
1114 ret = do_object_child_foreach(child, fn, opaque, true);
1115 if (ret != 0) {
1116 break;
1117 }
1118 }
1119 }
1120 }
1121 return ret;
1122}
1123
1124int object_child_foreach(Object *obj, int (*fn)(Object *child, void *opaque),
1125 void *opaque)
1126{
1127 return do_object_child_foreach(obj, fn, opaque, false);
1128}
1129
1130int object_child_foreach_recursive(Object *obj,
1131 int (*fn)(Object *child, void *opaque),
1132 void *opaque)
1133{
1134 return do_object_child_foreach(obj, fn, opaque, true);
1135}
1136
1137static void object_class_get_list_tramp(ObjectClass *klass, void *opaque)
1138{
1139 GSList **list = opaque;
1140
1141 *list = g_slist_prepend(*list, klass);
1142}
1143
1144GSList *object_class_get_list(const char *implements_type,
1145 bool include_abstract)
1146{
1147 GSList *list = NULL;
1148
1149 object_class_foreach(object_class_get_list_tramp,
1150 implements_type, include_abstract, &list);
1151 return list;
1152}
1153
1154static gint object_class_cmp(gconstpointer a, gconstpointer b)
1155{
1156 return strcasecmp(object_class_get_name((ObjectClass *)a),
1157 object_class_get_name((ObjectClass *)b));
1158}
1159
1160GSList *object_class_get_list_sorted(const char *implements_type,
1161 bool include_abstract)
1162{
1163 return g_slist_sort(object_class_get_list(implements_type, include_abstract),
1164 object_class_cmp);
1165}
1166
1167Object *object_ref(void *objptr)
1168{
1169 Object *obj = OBJECT(objptr);
1170 if (!obj) {
1171 return NULL;
1172 }
1173 qatomic_inc(&obj->ref);
1174 return obj;
1175}
1176
1177void object_unref(void *objptr)
1178{
1179 Object *obj = OBJECT(objptr);
1180 if (!obj) {
1181 return;
1182 }
1183 g_assert(obj->ref > 0);
1184
1185
1186 if (qatomic_fetch_dec(&obj->ref) == 1) {
1187 object_finalize(obj);
1188 }
1189}
1190
1191ObjectProperty *
1192object_property_try_add(Object *obj, const char *name, const char *type,
1193 ObjectPropertyAccessor *get,
1194 ObjectPropertyAccessor *set,
1195 ObjectPropertyRelease *release,
1196 void *opaque, Error **errp)
1197{
1198 ObjectProperty *prop;
1199 size_t name_len = strlen(name);
1200
1201 if (name_len >= 3 && !memcmp(name + name_len - 3, "[*]", 4)) {
1202 int i;
1203 ObjectProperty *ret = NULL;
1204 char *name_no_array = g_strdup(name);
1205
1206 name_no_array[name_len - 3] = '\0';
1207 for (i = 0; i < INT16_MAX; ++i) {
1208 char *full_name = g_strdup_printf("%s[%d]", name_no_array, i);
1209
1210 ret = object_property_try_add(obj, full_name, type, get, set,
1211 release, opaque, NULL);
1212 g_free(full_name);
1213 if (ret) {
1214 break;
1215 }
1216 }
1217 g_free(name_no_array);
1218 assert(ret);
1219 return ret;
1220 }
1221
1222 if (object_property_find(obj, name) != NULL) {
1223 error_setg(errp, "attempt to add duplicate property '%s' to object (type '%s')",
1224 name, object_get_typename(obj));
1225 return NULL;
1226 }
1227
1228 prop = g_malloc0(sizeof(*prop));
1229
1230 prop->name = g_strdup(name);
1231 prop->type = g_strdup(type);
1232
1233 prop->get = get;
1234 prop->set = set;
1235 prop->release = release;
1236 prop->opaque = opaque;
1237
1238 g_hash_table_insert(obj->properties, prop->name, prop);
1239 return prop;
1240}
1241
1242ObjectProperty *
1243object_property_add(Object *obj, const char *name, const char *type,
1244 ObjectPropertyAccessor *get,
1245 ObjectPropertyAccessor *set,
1246 ObjectPropertyRelease *release,
1247 void *opaque)
1248{
1249 return object_property_try_add(obj, name, type, get, set, release,
1250 opaque, &error_abort);
1251}
1252
1253ObjectProperty *
1254object_class_property_add(ObjectClass *klass,
1255 const char *name,
1256 const char *type,
1257 ObjectPropertyAccessor *get,
1258 ObjectPropertyAccessor *set,
1259 ObjectPropertyRelease *release,
1260 void *opaque)
1261{
1262 ObjectProperty *prop;
1263
1264 assert(!object_class_property_find(klass, name));
1265
1266 prop = g_malloc0(sizeof(*prop));
1267
1268 prop->name = g_strdup(name);
1269 prop->type = g_strdup(type);
1270
1271 prop->get = get;
1272 prop->set = set;
1273 prop->release = release;
1274 prop->opaque = opaque;
1275
1276 g_hash_table_insert(klass->properties, prop->name, prop);
1277
1278 return prop;
1279}
1280
1281ObjectProperty *object_property_find(Object *obj, const char *name)
1282{
1283 ObjectProperty *prop;
1284 ObjectClass *klass = object_get_class(obj);
1285
1286 prop = object_class_property_find(klass, name);
1287 if (prop) {
1288 return prop;
1289 }
1290
1291 return g_hash_table_lookup(obj->properties, name);
1292}
1293
1294ObjectProperty *object_property_find_err(Object *obj, const char *name,
1295 Error **errp)
1296{
1297 ObjectProperty *prop = object_property_find(obj, name);
1298 if (!prop) {
1299 error_setg(errp, "Property '%s.%s' not found",
1300 object_get_typename(obj), name);
1301 }
1302 return prop;
1303}
1304
1305void object_property_iter_init(ObjectPropertyIterator *iter,
1306 Object *obj)
1307{
1308 g_hash_table_iter_init(&iter->iter, obj->properties);
1309 iter->nextclass = object_get_class(obj);
1310}
1311
1312ObjectProperty *object_property_iter_next(ObjectPropertyIterator *iter)
1313{
1314 gpointer key, val;
1315 while (!g_hash_table_iter_next(&iter->iter, &key, &val)) {
1316 if (!iter->nextclass) {
1317 return NULL;
1318 }
1319 g_hash_table_iter_init(&iter->iter, iter->nextclass->properties);
1320 iter->nextclass = object_class_get_parent(iter->nextclass);
1321 }
1322 return val;
1323}
1324
1325void object_class_property_iter_init(ObjectPropertyIterator *iter,
1326 ObjectClass *klass)
1327{
1328 g_hash_table_iter_init(&iter->iter, klass->properties);
1329 iter->nextclass = object_class_get_parent(klass);
1330}
1331
1332ObjectProperty *object_class_property_find(ObjectClass *klass, const char *name)
1333{
1334 ObjectClass *parent_klass;
1335
1336 parent_klass = object_class_get_parent(klass);
1337 if (parent_klass) {
1338 ObjectProperty *prop =
1339 object_class_property_find(parent_klass, name);
1340 if (prop) {
1341 return prop;
1342 }
1343 }
1344
1345 return g_hash_table_lookup(klass->properties, name);
1346}
1347
1348ObjectProperty *object_class_property_find_err(ObjectClass *klass,
1349 const char *name,
1350 Error **errp)
1351{
1352 ObjectProperty *prop = object_class_property_find(klass, name);
1353 if (!prop) {
1354 error_setg(errp, "Property '.%s' not found", name);
1355 }
1356 return prop;
1357}
1358
1359
1360void object_property_del(Object *obj, const char *name)
1361{
1362 ObjectProperty *prop = g_hash_table_lookup(obj->properties, name);
1363
1364 if (prop->release) {
1365 prop->release(obj, name, prop->opaque);
1366 }
1367 g_hash_table_remove(obj->properties, name);
1368}
1369
1370bool object_property_get(Object *obj, const char *name, Visitor *v,
1371 Error **errp)
1372{
1373 Error *err = NULL;
1374 ObjectProperty *prop = object_property_find_err(obj, name, errp);
1375
1376 if (prop == NULL) {
1377 return false;
1378 }
1379
1380 if (!prop->get) {
1381 error_setg(errp, QERR_PERMISSION_DENIED);
1382 return false;
1383 }
1384 prop->get(obj, v, name, prop->opaque, &err);
1385 error_propagate(errp, err);
1386 return !err;
1387}
1388
1389bool object_property_set(Object *obj, const char *name, Visitor *v,
1390 Error **errp)
1391{
1392 ERRP_GUARD();
1393 ObjectProperty *prop = object_property_find_err(obj, name, errp);
1394
1395 if (prop == NULL) {
1396 return false;
1397 }
1398
1399 if (!prop->set) {
1400 error_setg(errp, QERR_PERMISSION_DENIED);
1401 return false;
1402 }
1403 prop->set(obj, v, name, prop->opaque, errp);
1404 return !*errp;
1405}
1406
1407bool object_property_set_str(Object *obj, const char *name,
1408 const char *value, Error **errp)
1409{
1410 QString *qstr = qstring_from_str(value);
1411 bool ok = object_property_set_qobject(obj, name, QOBJECT(qstr), errp);
1412
1413 qobject_unref(qstr);
1414 return ok;
1415}
1416
1417char *object_property_get_str(Object *obj, const char *name,
1418 Error **errp)
1419{
1420 QObject *ret = object_property_get_qobject(obj, name, errp);
1421 QString *qstring;
1422 char *retval;
1423
1424 if (!ret) {
1425 return NULL;
1426 }
1427 qstring = qobject_to(QString, ret);
1428 if (!qstring) {
1429 error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "string");
1430 retval = NULL;
1431 } else {
1432 retval = g_strdup(qstring_get_str(qstring));
1433 }
1434
1435 qobject_unref(ret);
1436 return retval;
1437}
1438
1439bool object_property_set_link(Object *obj, const char *name,
1440 Object *value, Error **errp)
1441{
1442 g_autofree char *path = NULL;
1443
1444 if (value) {
1445 path = object_get_canonical_path(value);
1446 }
1447 return object_property_set_str(obj, name, path ?: "", errp);
1448}
1449
1450Object *object_property_get_link(Object *obj, const char *name,
1451 Error **errp)
1452{
1453 char *str = object_property_get_str(obj, name, errp);
1454 Object *target = NULL;
1455
1456 if (str && *str) {
1457 target = object_resolve_path(str, NULL);
1458 if (!target) {
1459 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
1460 "Device '%s' not found", str);
1461 }
1462 }
1463
1464 g_free(str);
1465 return target;
1466}
1467
1468bool object_property_set_bool(Object *obj, const char *name,
1469 bool value, Error **errp)
1470{
1471 QBool *qbool = qbool_from_bool(value);
1472 bool ok = object_property_set_qobject(obj, name, QOBJECT(qbool), errp);
1473
1474 qobject_unref(qbool);
1475 return ok;
1476}
1477
1478bool object_property_get_bool(Object *obj, const char *name,
1479 Error **errp)
1480{
1481 QObject *ret = object_property_get_qobject(obj, name, errp);
1482 QBool *qbool;
1483 bool retval;
1484
1485 if (!ret) {
1486 return false;
1487 }
1488 qbool = qobject_to(QBool, ret);
1489 if (!qbool) {
1490 error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "boolean");
1491 retval = false;
1492 } else {
1493 retval = qbool_get_bool(qbool);
1494 }
1495
1496 qobject_unref(ret);
1497 return retval;
1498}
1499
1500bool object_property_set_int(Object *obj, const char *name,
1501 int64_t value, Error **errp)
1502{
1503 QNum *qnum = qnum_from_int(value);
1504 bool ok = object_property_set_qobject(obj, name, QOBJECT(qnum), errp);
1505
1506 qobject_unref(qnum);
1507 return ok;
1508}
1509
1510int64_t object_property_get_int(Object *obj, const char *name,
1511 Error **errp)
1512{
1513 QObject *ret = object_property_get_qobject(obj, name, errp);
1514 QNum *qnum;
1515 int64_t retval;
1516
1517 if (!ret) {
1518 return -1;
1519 }
1520
1521 qnum = qobject_to(QNum, ret);
1522 if (!qnum || !qnum_get_try_int(qnum, &retval)) {
1523 error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "int");
1524 retval = -1;
1525 }
1526
1527 qobject_unref(ret);
1528 return retval;
1529}
1530
1531static void object_property_init_defval(Object *obj, ObjectProperty *prop)
1532{
1533 Visitor *v = qobject_input_visitor_new(prop->defval);
1534
1535 assert(prop->set != NULL);
1536 prop->set(obj, v, prop->name, prop->opaque, &error_abort);
1537
1538 visit_free(v);
1539}
1540
1541static void object_property_set_default(ObjectProperty *prop, QObject *defval)
1542{
1543 assert(!prop->defval);
1544 assert(!prop->init);
1545
1546 prop->defval = defval;
1547 prop->init = object_property_init_defval;
1548}
1549
1550void object_property_set_default_bool(ObjectProperty *prop, bool value)
1551{
1552 object_property_set_default(prop, QOBJECT(qbool_from_bool(value)));
1553}
1554
1555void object_property_set_default_str(ObjectProperty *prop, const char *value)
1556{
1557 object_property_set_default(prop, QOBJECT(qstring_from_str(value)));
1558}
1559
1560void object_property_set_default_int(ObjectProperty *prop, int64_t value)
1561{
1562 object_property_set_default(prop, QOBJECT(qnum_from_int(value)));
1563}
1564
1565void object_property_set_default_uint(ObjectProperty *prop, uint64_t value)
1566{
1567 object_property_set_default(prop, QOBJECT(qnum_from_uint(value)));
1568}
1569
1570bool object_property_set_uint(Object *obj, const char *name,
1571 uint64_t value, Error **errp)
1572{
1573 QNum *qnum = qnum_from_uint(value);
1574 bool ok = object_property_set_qobject(obj, name, QOBJECT(qnum), errp);
1575
1576 qobject_unref(qnum);
1577 return ok;
1578}
1579
1580uint64_t object_property_get_uint(Object *obj, const char *name,
1581 Error **errp)
1582{
1583 QObject *ret = object_property_get_qobject(obj, name, errp);
1584 QNum *qnum;
1585 uint64_t retval;
1586
1587 if (!ret) {
1588 return 0;
1589 }
1590 qnum = qobject_to(QNum, ret);
1591 if (!qnum || !qnum_get_try_uint(qnum, &retval)) {
1592 error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, "uint");
1593 retval = 0;
1594 }
1595
1596 qobject_unref(ret);
1597 return retval;
1598}
1599
1600typedef struct EnumProperty {
1601 const QEnumLookup *lookup;
1602 int (*get)(Object *, Error **);
1603 void (*set)(Object *, int, Error **);
1604} EnumProperty;
1605
1606int object_property_get_enum(Object *obj, const char *name,
1607 const char *typename, Error **errp)
1608{
1609 char *str;
1610 int ret;
1611 ObjectProperty *prop = object_property_find_err(obj, name, errp);
1612 EnumProperty *enumprop;
1613
1614 if (prop == NULL) {
1615 return -1;
1616 }
1617
1618 if (!g_str_equal(prop->type, typename)) {
1619 error_setg(errp, "Property %s on %s is not '%s' enum type",
1620 name, object_class_get_name(
1621 object_get_class(obj)), typename);
1622 return -1;
1623 }
1624
1625 enumprop = prop->opaque;
1626
1627 str = object_property_get_str(obj, name, errp);
1628 if (!str) {
1629 return -1;
1630 }
1631
1632 ret = qapi_enum_parse(enumprop->lookup, str, -1, errp);
1633 g_free(str);
1634
1635 return ret;
1636}
1637
1638bool object_property_parse(Object *obj, const char *name,
1639 const char *string, Error **errp)
1640{
1641 Visitor *v = string_input_visitor_new(string);
1642 bool ok = object_property_set(obj, name, v, errp);
1643
1644 visit_free(v);
1645 return ok;
1646}
1647
1648char *object_property_print(Object *obj, const char *name, bool human,
1649 Error **errp)
1650{
1651 Visitor *v;
1652 char *string = NULL;
1653
1654 v = string_output_visitor_new(human, &string);
1655 if (!object_property_get(obj, name, v, errp)) {
1656 goto out;
1657 }
1658
1659 visit_complete(v, &string);
1660
1661out:
1662 visit_free(v);
1663 return string;
1664}
1665
1666const char *object_property_get_type(Object *obj, const char *name, Error **errp)
1667{
1668 ObjectProperty *prop = object_property_find_err(obj, name, errp);
1669 if (prop == NULL) {
1670 return NULL;
1671 }
1672
1673 return prop->type;
1674}
1675
1676Object *object_get_root(void)
1677{
1678 static Object *root;
1679
1680 if (!root) {
1681 root = object_new("container");
1682 }
1683
1684 return root;
1685}
1686
1687Object *object_get_objects_root(void)
1688{
1689 return container_get(object_get_root(), "/objects");
1690}
1691
1692Object *object_get_internal_root(void)
1693{
1694 static Object *internal_root;
1695
1696 if (!internal_root) {
1697 internal_root = object_new("container");
1698 }
1699
1700 return internal_root;
1701}
1702
1703static void object_get_child_property(Object *obj, Visitor *v,
1704 const char *name, void *opaque,
1705 Error **errp)
1706{
1707 Object *child = opaque;
1708 char *path;
1709
1710 path = object_get_canonical_path(child);
1711 visit_type_str(v, name, &path, errp);
1712 g_free(path);
1713}
1714
1715static Object *object_resolve_child_property(Object *parent, void *opaque,
1716 const char *part)
1717{
1718 return opaque;
1719}
1720
1721static void object_finalize_child_property(Object *obj, const char *name,
1722 void *opaque)
1723{
1724 Object *child = opaque;
1725
1726 if (child->class->unparent) {
1727 (child->class->unparent)(child);
1728 }
1729 child->parent = NULL;
1730 object_unref(child);
1731}
1732
1733ObjectProperty *
1734object_property_try_add_child(Object *obj, const char *name,
1735 Object *child, Error **errp)
1736{
1737 g_autofree char *type = NULL;
1738 ObjectProperty *op;
1739
1740 assert(!child->parent);
1741
1742 type = g_strdup_printf("child<%s>", object_get_typename(child));
1743
1744 op = object_property_try_add(obj, name, type, object_get_child_property,
1745 NULL, object_finalize_child_property,
1746 child, errp);
1747 if (!op) {
1748 return NULL;
1749 }
1750 op->resolve = object_resolve_child_property;
1751 object_ref(child);
1752 child->parent = obj;
1753 return op;
1754}
1755
1756ObjectProperty *
1757object_property_add_child(Object *obj, const char *name,
1758 Object *child)
1759{
1760 return object_property_try_add_child(obj, name, child, &error_abort);
1761}
1762
1763void object_property_allow_set_link(const Object *obj, const char *name,
1764 Object *val, Error **errp)
1765{
1766
1767}
1768
1769typedef struct {
1770 union {
1771 Object **targetp;
1772 Object *target;
1773 ptrdiff_t offset;
1774 };
1775 void (*check)(const Object *, const char *, Object *, Error **);
1776 ObjectPropertyLinkFlags flags;
1777} LinkProperty;
1778
1779static Object **
1780object_link_get_targetp(Object *obj, LinkProperty *lprop)
1781{
1782 if (lprop->flags & OBJ_PROP_LINK_DIRECT) {
1783 return &lprop->target;
1784 } else if (lprop->flags & OBJ_PROP_LINK_CLASS) {
1785 return (void *)obj + lprop->offset;
1786 } else {
1787 return lprop->targetp;
1788 }
1789}
1790
1791static void object_get_link_property(Object *obj, Visitor *v,
1792 const char *name, void *opaque,
1793 Error **errp)
1794{
1795 LinkProperty *lprop = opaque;
1796 Object **targetp = object_link_get_targetp(obj, lprop);
1797 char *path;
1798
1799 if (*targetp) {
1800 path = object_get_canonical_path(*targetp);
1801 visit_type_str(v, name, &path, errp);
1802 g_free(path);
1803 } else {
1804 path = (char *)"";
1805 visit_type_str(v, name, &path, errp);
1806 }
1807}
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818static Object *object_resolve_link(Object *obj, const char *name,
1819 const char *path, Error **errp)
1820{
1821 const char *type;
1822 char *target_type;
1823 bool ambiguous = false;
1824 Object *target;
1825
1826
1827 type = object_property_get_type(obj, name, NULL);
1828 target_type = g_strndup(&type[5], strlen(type) - 6);
1829 target = object_resolve_path_type(path, target_type, &ambiguous);
1830
1831 if (ambiguous) {
1832 error_setg(errp, "Path '%s' does not uniquely identify an object",
1833 path);
1834 } else if (!target) {
1835 target = object_resolve_path(path, &ambiguous);
1836 if (target || ambiguous) {
1837 error_setg(errp, QERR_INVALID_PARAMETER_TYPE, name, target_type);
1838 } else {
1839 error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
1840 "Device '%s' not found", path);
1841 }
1842 target = NULL;
1843 }
1844 g_free(target_type);
1845
1846 return target;
1847}
1848
1849static void object_set_link_property(Object *obj, Visitor *v,
1850 const char *name, void *opaque,
1851 Error **errp)
1852{
1853 Error *local_err = NULL;
1854 LinkProperty *prop = opaque;
1855 Object **targetp = object_link_get_targetp(obj, prop);
1856 Object *old_target = *targetp;
1857 Object *new_target;
1858 char *path = NULL;
1859
1860 if (!visit_type_str(v, name, &path, errp)) {
1861 return;
1862 }
1863
1864 if (*path) {
1865 new_target = object_resolve_link(obj, name, path, errp);
1866 if (!new_target) {
1867 g_free(path);
1868 return;
1869 }
1870 } else {
1871 new_target = NULL;
1872 }
1873
1874 g_free(path);
1875
1876 prop->check(obj, name, new_target, &local_err);
1877 if (local_err) {
1878 error_propagate(errp, local_err);
1879 return;
1880 }
1881
1882 *targetp = new_target;
1883 if (prop->flags & OBJ_PROP_LINK_STRONG) {
1884 object_ref(new_target);
1885 object_unref(old_target);
1886 }
1887}
1888
1889static Object *object_resolve_link_property(Object *parent, void *opaque,
1890 const char *part)
1891{
1892 LinkProperty *lprop = opaque;
1893
1894 return *object_link_get_targetp(parent, lprop);
1895}
1896
1897static void object_release_link_property(Object *obj, const char *name,
1898 void *opaque)
1899{
1900 LinkProperty *prop = opaque;
1901 Object **targetp = object_link_get_targetp(obj, prop);
1902
1903 if ((prop->flags & OBJ_PROP_LINK_STRONG) && *targetp) {
1904 object_unref(*targetp);
1905 }
1906 if (!(prop->flags & OBJ_PROP_LINK_CLASS)) {
1907 g_free(prop);
1908 }
1909}
1910
1911static ObjectProperty *
1912object_add_link_prop(Object *obj, const char *name,
1913 const char *type, void *ptr,
1914 void (*check)(const Object *, const char *,
1915 Object *, Error **),
1916 ObjectPropertyLinkFlags flags)
1917{
1918 LinkProperty *prop = g_malloc(sizeof(*prop));
1919 g_autofree char *full_type = NULL;
1920 ObjectProperty *op;
1921
1922 if (flags & OBJ_PROP_LINK_DIRECT) {
1923 prop->target = ptr;
1924 } else {
1925 prop->targetp = ptr;
1926 }
1927 prop->check = check;
1928 prop->flags = flags;
1929
1930 full_type = g_strdup_printf("link<%s>", type);
1931
1932 op = object_property_add(obj, name, full_type,
1933 object_get_link_property,
1934 check ? object_set_link_property : NULL,
1935 object_release_link_property,
1936 prop);
1937 op->resolve = object_resolve_link_property;
1938 return op;
1939}
1940
1941ObjectProperty *
1942object_property_add_link(Object *obj, const char *name,
1943 const char *type, Object **targetp,
1944 void (*check)(const Object *, const char *,
1945 Object *, Error **),
1946 ObjectPropertyLinkFlags flags)
1947{
1948 return object_add_link_prop(obj, name, type, targetp, check, flags);
1949}
1950
1951ObjectProperty *
1952object_class_property_add_link(ObjectClass *oc,
1953 const char *name,
1954 const char *type, ptrdiff_t offset,
1955 void (*check)(const Object *obj, const char *name,
1956 Object *val, Error **errp),
1957 ObjectPropertyLinkFlags flags)
1958{
1959 LinkProperty *prop = g_new0(LinkProperty, 1);
1960 char *full_type;
1961 ObjectProperty *op;
1962
1963 prop->offset = offset;
1964 prop->check = check;
1965 prop->flags = flags | OBJ_PROP_LINK_CLASS;
1966
1967 full_type = g_strdup_printf("link<%s>", type);
1968
1969 op = object_class_property_add(oc, name, full_type,
1970 object_get_link_property,
1971 check ? object_set_link_property : NULL,
1972 object_release_link_property,
1973 prop);
1974
1975 op->resolve = object_resolve_link_property;
1976
1977 g_free(full_type);
1978 return op;
1979}
1980
1981ObjectProperty *
1982object_property_add_const_link(Object *obj, const char *name,
1983 Object *target)
1984{
1985 return object_add_link_prop(obj, name,
1986 object_get_typename(target), target,
1987 NULL, OBJ_PROP_LINK_DIRECT);
1988}
1989
1990const char *object_get_canonical_path_component(const Object *obj)
1991{
1992 ObjectProperty *prop = NULL;
1993 GHashTableIter iter;
1994
1995 if (obj->parent == NULL) {
1996 return NULL;
1997 }
1998
1999 g_hash_table_iter_init(&iter, obj->parent->properties);
2000 while (g_hash_table_iter_next(&iter, NULL, (gpointer *)&prop)) {
2001 if (!object_property_is_child(prop)) {
2002 continue;
2003 }
2004
2005 if (prop->opaque == obj) {
2006 return prop->name;
2007 }
2008 }
2009
2010
2011 g_assert_not_reached();
2012 return NULL;
2013}
2014
2015char *object_get_canonical_path(const Object *obj)
2016{
2017 Object *root = object_get_root();
2018 char *newpath, *path = NULL;
2019
2020 if (obj == root) {
2021 return g_strdup("/");
2022 }
2023
2024 do {
2025 const char *component = object_get_canonical_path_component(obj);
2026
2027 if (!component) {
2028
2029
2030
2031 g_free(path);
2032 return NULL;
2033 }
2034
2035 newpath = g_strdup_printf("/%s%s", component, path ? path : "");
2036 g_free(path);
2037 path = newpath;
2038 obj = obj->parent;
2039 } while (obj != root);
2040
2041 return path;
2042}
2043
2044Object *object_resolve_path_component(Object *parent, const char *part)
2045{
2046 ObjectProperty *prop = object_property_find(parent, part);
2047 if (prop == NULL) {
2048 return NULL;
2049 }
2050
2051 if (prop->resolve) {
2052 return prop->resolve(parent, prop->opaque, part);
2053 } else {
2054 return NULL;
2055 }
2056}
2057
2058static Object *object_resolve_abs_path(Object *parent,
2059 char **parts,
2060 const char *typename)
2061{
2062 Object *child;
2063
2064 if (*parts == NULL) {
2065 return object_dynamic_cast(parent, typename);
2066 }
2067
2068 if (strcmp(*parts, "") == 0) {
2069 return object_resolve_abs_path(parent, parts + 1, typename);
2070 }
2071
2072 child = object_resolve_path_component(parent, *parts);
2073 if (!child) {
2074 return NULL;
2075 }
2076
2077 return object_resolve_abs_path(child, parts + 1, typename);
2078}
2079
2080static Object *object_resolve_partial_path(Object *parent,
2081 char **parts,
2082 const char *typename,
2083 bool *ambiguous)
2084{
2085 Object *obj;
2086 GHashTableIter iter;
2087 ObjectProperty *prop;
2088
2089 obj = object_resolve_abs_path(parent, parts, typename);
2090
2091 g_hash_table_iter_init(&iter, parent->properties);
2092 while (g_hash_table_iter_next(&iter, NULL, (gpointer *)&prop)) {
2093 Object *found;
2094
2095 if (!object_property_is_child(prop)) {
2096 continue;
2097 }
2098
2099 found = object_resolve_partial_path(prop->opaque, parts,
2100 typename, ambiguous);
2101 if (found) {
2102 if (obj) {
2103 *ambiguous = true;
2104 return NULL;
2105 }
2106 obj = found;
2107 }
2108
2109 if (*ambiguous) {
2110 return NULL;
2111 }
2112 }
2113
2114 return obj;
2115}
2116
2117Object *object_resolve_path_type(const char *path, const char *typename,
2118 bool *ambiguousp)
2119{
2120 Object *obj;
2121 char **parts;
2122
2123 parts = g_strsplit(path, "/", 0);
2124 assert(parts);
2125
2126 if (parts[0] == NULL || strcmp(parts[0], "") != 0) {
2127 bool ambiguous = false;
2128 obj = object_resolve_partial_path(object_get_root(), parts,
2129 typename, &ambiguous);
2130 if (ambiguousp) {
2131 *ambiguousp = ambiguous;
2132 }
2133 } else {
2134 obj = object_resolve_abs_path(object_get_root(), parts + 1, typename);
2135 }
2136
2137 g_strfreev(parts);
2138
2139 return obj;
2140}
2141
2142Object *object_resolve_path(const char *path, bool *ambiguous)
2143{
2144 return object_resolve_path_type(path, TYPE_OBJECT, ambiguous);
2145}
2146
2147Object *object_resolve_path_at(Object *parent, const char *path)
2148{
2149 g_auto(GStrv) parts = g_strsplit(path, "/", 0);
2150
2151 if (*path == '/') {
2152 return object_resolve_abs_path(object_get_root(), parts + 1,
2153 TYPE_OBJECT);
2154 }
2155 return object_resolve_abs_path(parent, parts, TYPE_OBJECT);
2156}
2157
2158typedef struct StringProperty
2159{
2160 char *(*get)(Object *, Error **);
2161 void (*set)(Object *, const char *, Error **);
2162} StringProperty;
2163
2164static void property_get_str(Object *obj, Visitor *v, const char *name,
2165 void *opaque, Error **errp)
2166{
2167 StringProperty *prop = opaque;
2168 char *value;
2169 Error *err = NULL;
2170
2171 value = prop->get(obj, &err);
2172 if (err) {
2173 error_propagate(errp, err);
2174 return;
2175 }
2176
2177 visit_type_str(v, name, &value, errp);
2178 g_free(value);
2179}
2180
2181static void property_set_str(Object *obj, Visitor *v, const char *name,
2182 void *opaque, Error **errp)
2183{
2184 StringProperty *prop = opaque;
2185 char *value;
2186
2187 if (!visit_type_str(v, name, &value, errp)) {
2188 return;
2189 }
2190
2191 prop->set(obj, value, errp);
2192 g_free(value);
2193}
2194
2195static void property_release_data(Object *obj, const char *name,
2196 void *opaque)
2197{
2198 g_free(opaque);
2199}
2200
2201ObjectProperty *
2202object_property_add_str(Object *obj, const char *name,
2203 char *(*get)(Object *, Error **),
2204 void (*set)(Object *, const char *, Error **))
2205{
2206 StringProperty *prop = g_malloc0(sizeof(*prop));
2207
2208 prop->get = get;
2209 prop->set = set;
2210
2211 return object_property_add(obj, name, "string",
2212 get ? property_get_str : NULL,
2213 set ? property_set_str : NULL,
2214 property_release_data,
2215 prop);
2216}
2217
2218ObjectProperty *
2219object_class_property_add_str(ObjectClass *klass, const char *name,
2220 char *(*get)(Object *, Error **),
2221 void (*set)(Object *, const char *,
2222 Error **))
2223{
2224 StringProperty *prop = g_malloc0(sizeof(*prop));
2225
2226 prop->get = get;
2227 prop->set = set;
2228
2229 return object_class_property_add(klass, name, "string",
2230 get ? property_get_str : NULL,
2231 set ? property_set_str : NULL,
2232 NULL,
2233 prop);
2234}
2235
2236typedef struct BoolProperty
2237{
2238 bool (*get)(Object *, Error **);
2239 void (*set)(Object *, bool, Error **);
2240} BoolProperty;
2241
2242static void property_get_bool(Object *obj, Visitor *v, const char *name,
2243 void *opaque, Error **errp)
2244{
2245 BoolProperty *prop = opaque;
2246 bool value;
2247 Error *err = NULL;
2248
2249 value = prop->get(obj, &err);
2250 if (err) {
2251 error_propagate(errp, err);
2252 return;
2253 }
2254
2255 visit_type_bool(v, name, &value, errp);
2256}
2257
2258static void property_set_bool(Object *obj, Visitor *v, const char *name,
2259 void *opaque, Error **errp)
2260{
2261 BoolProperty *prop = opaque;
2262 bool value;
2263
2264 if (!visit_type_bool(v, name, &value, errp)) {
2265 return;
2266 }
2267
2268 prop->set(obj, value, errp);
2269}
2270
2271ObjectProperty *
2272object_property_add_bool(Object *obj, const char *name,
2273 bool (*get)(Object *, Error **),
2274 void (*set)(Object *, bool, Error **))
2275{
2276 BoolProperty *prop = g_malloc0(sizeof(*prop));
2277
2278 prop->get = get;
2279 prop->set = set;
2280
2281 return object_property_add(obj, name, "bool",
2282 get ? property_get_bool : NULL,
2283 set ? property_set_bool : NULL,
2284 property_release_data,
2285 prop);
2286}
2287
2288ObjectProperty *
2289object_class_property_add_bool(ObjectClass *klass, const char *name,
2290 bool (*get)(Object *, Error **),
2291 void (*set)(Object *, bool, Error **))
2292{
2293 BoolProperty *prop = g_malloc0(sizeof(*prop));
2294
2295 prop->get = get;
2296 prop->set = set;
2297
2298 return object_class_property_add(klass, name, "bool",
2299 get ? property_get_bool : NULL,
2300 set ? property_set_bool : NULL,
2301 NULL,
2302 prop);
2303}
2304
2305static void property_get_enum(Object *obj, Visitor *v, const char *name,
2306 void *opaque, Error **errp)
2307{
2308 EnumProperty *prop = opaque;
2309 int value;
2310 Error *err = NULL;
2311
2312 value = prop->get(obj, &err);
2313 if (err) {
2314 error_propagate(errp, err);
2315 return;
2316 }
2317
2318 visit_type_enum(v, name, &value, prop->lookup, errp);
2319}
2320
2321static void property_set_enum(Object *obj, Visitor *v, const char *name,
2322 void *opaque, Error **errp)
2323{
2324 EnumProperty *prop = opaque;
2325 int value;
2326
2327 if (!visit_type_enum(v, name, &value, prop->lookup, errp)) {
2328 return;
2329 }
2330 prop->set(obj, value, errp);
2331}
2332
2333ObjectProperty *
2334object_property_add_enum(Object *obj, const char *name,
2335 const char *typename,
2336 const QEnumLookup *lookup,
2337 int (*get)(Object *, Error **),
2338 void (*set)(Object *, int, Error **))
2339{
2340 EnumProperty *prop = g_malloc(sizeof(*prop));
2341
2342 prop->lookup = lookup;
2343 prop->get = get;
2344 prop->set = set;
2345
2346 return object_property_add(obj, name, typename,
2347 get ? property_get_enum : NULL,
2348 set ? property_set_enum : NULL,
2349 property_release_data,
2350 prop);
2351}
2352
2353ObjectProperty *
2354object_class_property_add_enum(ObjectClass *klass, const char *name,
2355 const char *typename,
2356 const QEnumLookup *lookup,
2357 int (*get)(Object *, Error **),
2358 void (*set)(Object *, int, Error **))
2359{
2360 EnumProperty *prop = g_malloc(sizeof(*prop));
2361
2362 prop->lookup = lookup;
2363 prop->get = get;
2364 prop->set = set;
2365
2366 return object_class_property_add(klass, name, typename,
2367 get ? property_get_enum : NULL,
2368 set ? property_set_enum : NULL,
2369 NULL,
2370 prop);
2371}
2372
2373typedef struct TMProperty {
2374 void (*get)(Object *, struct tm *, Error **);
2375} TMProperty;
2376
2377static void property_get_tm(Object *obj, Visitor *v, const char *name,
2378 void *opaque, Error **errp)
2379{
2380 TMProperty *prop = opaque;
2381 Error *err = NULL;
2382 struct tm value;
2383
2384 prop->get(obj, &value, &err);
2385 if (err) {
2386 error_propagate(errp, err);
2387 return;
2388 }
2389
2390 if (!visit_start_struct(v, name, NULL, 0, errp)) {
2391 return;
2392 }
2393 if (!visit_type_int32(v, "tm_year", &value.tm_year, errp)) {
2394 goto out_end;
2395 }
2396 if (!visit_type_int32(v, "tm_mon", &value.tm_mon, errp)) {
2397 goto out_end;
2398 }
2399 if (!visit_type_int32(v, "tm_mday", &value.tm_mday, errp)) {
2400 goto out_end;
2401 }
2402 if (!visit_type_int32(v, "tm_hour", &value.tm_hour, errp)) {
2403 goto out_end;
2404 }
2405 if (!visit_type_int32(v, "tm_min", &value.tm_min, errp)) {
2406 goto out_end;
2407 }
2408 if (!visit_type_int32(v, "tm_sec", &value.tm_sec, errp)) {
2409 goto out_end;
2410 }
2411 visit_check_struct(v, errp);
2412out_end:
2413 visit_end_struct(v, NULL);
2414}
2415
2416ObjectProperty *
2417object_property_add_tm(Object *obj, const char *name,
2418 void (*get)(Object *, struct tm *, Error **))
2419{
2420 TMProperty *prop = g_malloc0(sizeof(*prop));
2421
2422 prop->get = get;
2423
2424 return object_property_add(obj, name, "struct tm",
2425 get ? property_get_tm : NULL, NULL,
2426 property_release_data,
2427 prop);
2428}
2429
2430ObjectProperty *
2431object_class_property_add_tm(ObjectClass *klass, const char *name,
2432 void (*get)(Object *, struct tm *, Error **))
2433{
2434 TMProperty *prop = g_malloc0(sizeof(*prop));
2435
2436 prop->get = get;
2437
2438 return object_class_property_add(klass, name, "struct tm",
2439 get ? property_get_tm : NULL,
2440 NULL, NULL, prop);
2441}
2442
2443static char *object_get_type(Object *obj, Error **errp)
2444{
2445 return g_strdup(object_get_typename(obj));
2446}
2447
2448static void property_get_uint8_ptr(Object *obj, Visitor *v, const char *name,
2449 void *opaque, Error **errp)
2450{
2451 uint8_t value = *(uint8_t *)opaque;
2452 visit_type_uint8(v, name, &value, errp);
2453}
2454
2455static void property_set_uint8_ptr(Object *obj, Visitor *v, const char *name,
2456 void *opaque, Error **errp)
2457{
2458 uint8_t *field = opaque;
2459 uint8_t value;
2460
2461 if (!visit_type_uint8(v, name, &value, errp)) {
2462 return;
2463 }
2464
2465 *field = value;
2466}
2467
2468static void property_get_uint16_ptr(Object *obj, Visitor *v, const char *name,
2469 void *opaque, Error **errp)
2470{
2471 uint16_t value = *(uint16_t *)opaque;
2472 visit_type_uint16(v, name, &value, errp);
2473}
2474
2475static void property_set_uint16_ptr(Object *obj, Visitor *v, const char *name,
2476 void *opaque, Error **errp)
2477{
2478 uint16_t *field = opaque;
2479 uint16_t value;
2480
2481 if (!visit_type_uint16(v, name, &value, errp)) {
2482 return;
2483 }
2484
2485 *field = value;
2486}
2487
2488static void property_get_uint32_ptr(Object *obj, Visitor *v, const char *name,
2489 void *opaque, Error **errp)
2490{
2491 uint32_t value = *(uint32_t *)opaque;
2492 visit_type_uint32(v, name, &value, errp);
2493}
2494
2495static void property_set_uint32_ptr(Object *obj, Visitor *v, const char *name,
2496 void *opaque, Error **errp)
2497{
2498 uint32_t *field = opaque;
2499 uint32_t value;
2500
2501 if (!visit_type_uint32(v, name, &value, errp)) {
2502 return;
2503 }
2504
2505 *field = value;
2506}
2507
2508static void property_get_uint64_ptr(Object *obj, Visitor *v, const char *name,
2509 void *opaque, Error **errp)
2510{
2511 uint64_t value = *(uint64_t *)opaque;
2512 visit_type_uint64(v, name, &value, errp);
2513}
2514
2515static void property_set_uint64_ptr(Object *obj, Visitor *v, const char *name,
2516 void *opaque, Error **errp)
2517{
2518 uint64_t *field = opaque;
2519 uint64_t value;
2520
2521 if (!visit_type_uint64(v, name, &value, errp)) {
2522 return;
2523 }
2524
2525 *field = value;
2526}
2527
2528ObjectProperty *
2529object_property_add_uint8_ptr(Object *obj, const char *name,
2530 const uint8_t *v,
2531 ObjectPropertyFlags flags)
2532{
2533 ObjectPropertyAccessor *getter = NULL;
2534 ObjectPropertyAccessor *setter = NULL;
2535
2536 if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
2537 getter = property_get_uint8_ptr;
2538 }
2539
2540 if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
2541 setter = property_set_uint8_ptr;
2542 }
2543
2544 return object_property_add(obj, name, "uint8",
2545 getter, setter, NULL, (void *)v);
2546}
2547
2548ObjectProperty *
2549object_class_property_add_uint8_ptr(ObjectClass *klass, const char *name,
2550 const uint8_t *v,
2551 ObjectPropertyFlags flags)
2552{
2553 ObjectPropertyAccessor *getter = NULL;
2554 ObjectPropertyAccessor *setter = NULL;
2555
2556 if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
2557 getter = property_get_uint8_ptr;
2558 }
2559
2560 if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
2561 setter = property_set_uint8_ptr;
2562 }
2563
2564 return object_class_property_add(klass, name, "uint8",
2565 getter, setter, NULL, (void *)v);
2566}
2567
2568ObjectProperty *
2569object_property_add_uint16_ptr(Object *obj, const char *name,
2570 const uint16_t *v,
2571 ObjectPropertyFlags flags)
2572{
2573 ObjectPropertyAccessor *getter = NULL;
2574 ObjectPropertyAccessor *setter = NULL;
2575
2576 if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
2577 getter = property_get_uint16_ptr;
2578 }
2579
2580 if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
2581 setter = property_set_uint16_ptr;
2582 }
2583
2584 return object_property_add(obj, name, "uint16",
2585 getter, setter, NULL, (void *)v);
2586}
2587
2588ObjectProperty *
2589object_class_property_add_uint16_ptr(ObjectClass *klass, const char *name,
2590 const uint16_t *v,
2591 ObjectPropertyFlags flags)
2592{
2593 ObjectPropertyAccessor *getter = NULL;
2594 ObjectPropertyAccessor *setter = NULL;
2595
2596 if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
2597 getter = property_get_uint16_ptr;
2598 }
2599
2600 if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
2601 setter = property_set_uint16_ptr;
2602 }
2603
2604 return object_class_property_add(klass, name, "uint16",
2605 getter, setter, NULL, (void *)v);
2606}
2607
2608ObjectProperty *
2609object_property_add_uint32_ptr(Object *obj, const char *name,
2610 const uint32_t *v,
2611 ObjectPropertyFlags flags)
2612{
2613 ObjectPropertyAccessor *getter = NULL;
2614 ObjectPropertyAccessor *setter = NULL;
2615
2616 if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
2617 getter = property_get_uint32_ptr;
2618 }
2619
2620 if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
2621 setter = property_set_uint32_ptr;
2622 }
2623
2624 return object_property_add(obj, name, "uint32",
2625 getter, setter, NULL, (void *)v);
2626}
2627
2628ObjectProperty *
2629object_class_property_add_uint32_ptr(ObjectClass *klass, const char *name,
2630 const uint32_t *v,
2631 ObjectPropertyFlags flags)
2632{
2633 ObjectPropertyAccessor *getter = NULL;
2634 ObjectPropertyAccessor *setter = NULL;
2635
2636 if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
2637 getter = property_get_uint32_ptr;
2638 }
2639
2640 if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
2641 setter = property_set_uint32_ptr;
2642 }
2643
2644 return object_class_property_add(klass, name, "uint32",
2645 getter, setter, NULL, (void *)v);
2646}
2647
2648ObjectProperty *
2649object_property_add_uint64_ptr(Object *obj, const char *name,
2650 const uint64_t *v,
2651 ObjectPropertyFlags flags)
2652{
2653 ObjectPropertyAccessor *getter = NULL;
2654 ObjectPropertyAccessor *setter = NULL;
2655
2656 if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
2657 getter = property_get_uint64_ptr;
2658 }
2659
2660 if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
2661 setter = property_set_uint64_ptr;
2662 }
2663
2664 return object_property_add(obj, name, "uint64",
2665 getter, setter, NULL, (void *)v);
2666}
2667
2668ObjectProperty *
2669object_class_property_add_uint64_ptr(ObjectClass *klass, const char *name,
2670 const uint64_t *v,
2671 ObjectPropertyFlags flags)
2672{
2673 ObjectPropertyAccessor *getter = NULL;
2674 ObjectPropertyAccessor *setter = NULL;
2675
2676 if ((flags & OBJ_PROP_FLAG_READ) == OBJ_PROP_FLAG_READ) {
2677 getter = property_get_uint64_ptr;
2678 }
2679
2680 if ((flags & OBJ_PROP_FLAG_WRITE) == OBJ_PROP_FLAG_WRITE) {
2681 setter = property_set_uint64_ptr;
2682 }
2683
2684 return object_class_property_add(klass, name, "uint64",
2685 getter, setter, NULL, (void *)v);
2686}
2687
2688typedef struct {
2689 Object *target_obj;
2690 char *target_name;
2691} AliasProperty;
2692
2693static void property_get_alias(Object *obj, Visitor *v, const char *name,
2694 void *opaque, Error **errp)
2695{
2696 AliasProperty *prop = opaque;
2697 Visitor *alias_v = visitor_forward_field(v, prop->target_name, name);
2698
2699 object_property_get(prop->target_obj, prop->target_name, alias_v, errp);
2700 visit_free(alias_v);
2701}
2702
2703static void property_set_alias(Object *obj, Visitor *v, const char *name,
2704 void *opaque, Error **errp)
2705{
2706 AliasProperty *prop = opaque;
2707 Visitor *alias_v = visitor_forward_field(v, prop->target_name, name);
2708
2709 object_property_set(prop->target_obj, prop->target_name, alias_v, errp);
2710 visit_free(alias_v);
2711}
2712
2713static Object *property_resolve_alias(Object *obj, void *opaque,
2714 const char *part)
2715{
2716 AliasProperty *prop = opaque;
2717
2718 return object_resolve_path_component(prop->target_obj, prop->target_name);
2719}
2720
2721static void property_release_alias(Object *obj, const char *name, void *opaque)
2722{
2723 AliasProperty *prop = opaque;
2724
2725 g_free(prop->target_name);
2726 g_free(prop);
2727}
2728
2729ObjectProperty *
2730object_property_add_alias(Object *obj, const char *name,
2731 Object *target_obj, const char *target_name)
2732{
2733 AliasProperty *prop;
2734 ObjectProperty *op;
2735 ObjectProperty *target_prop;
2736 g_autofree char *prop_type = NULL;
2737
2738 target_prop = object_property_find_err(target_obj, target_name,
2739 &error_abort);
2740
2741 if (object_property_is_child(target_prop)) {
2742 prop_type = g_strdup_printf("link%s",
2743 target_prop->type + strlen("child"));
2744 } else {
2745 prop_type = g_strdup(target_prop->type);
2746 }
2747
2748 prop = g_malloc(sizeof(*prop));
2749 prop->target_obj = target_obj;
2750 prop->target_name = g_strdup(target_name);
2751
2752 op = object_property_add(obj, name, prop_type,
2753 property_get_alias,
2754 property_set_alias,
2755 property_release_alias,
2756 prop);
2757 op->resolve = property_resolve_alias;
2758 if (target_prop->defval) {
2759 op->defval = qobject_ref(target_prop->defval);
2760 }
2761
2762 object_property_set_description(obj, op->name,
2763 target_prop->description);
2764 return op;
2765}
2766
2767void object_property_set_description(Object *obj, const char *name,
2768 const char *description)
2769{
2770 ObjectProperty *op;
2771
2772 op = object_property_find_err(obj, name, &error_abort);
2773 g_free(op->description);
2774 op->description = g_strdup(description);
2775}
2776
2777void object_class_property_set_description(ObjectClass *klass,
2778 const char *name,
2779 const char *description)
2780{
2781 ObjectProperty *op;
2782
2783 op = g_hash_table_lookup(klass->properties, name);
2784 g_free(op->description);
2785 op->description = g_strdup(description);
2786}
2787
2788static void object_class_init(ObjectClass *klass, void *data)
2789{
2790 object_class_property_add_str(klass, "type", object_get_type,
2791 NULL);
2792}
2793
2794static void register_types(void)
2795{
2796 static TypeInfo interface_info = {
2797 .name = TYPE_INTERFACE,
2798 .class_size = sizeof(InterfaceClass),
2799 .abstract = true,
2800 };
2801
2802 static TypeInfo object_info = {
2803 .name = TYPE_OBJECT,
2804 .instance_size = sizeof(Object),
2805 .class_init = object_class_init,
2806 .abstract = true,
2807 };
2808
2809 type_interface = type_register_internal(&interface_info);
2810 type_register_internal(&object_info);
2811}
2812
2813type_init(register_types)
2814