4 * Copyright IBM, Corp. 2011
7 * Anthony Liguori <aliguori@us.ibm.com>
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.
13 #include "qemu/osdep.h"
14 #include "qapi/error.h"
15 #include "qom/object.h"
16 #include "qom/object_interfaces.h"
17 #include "qemu/cutils.h"
18 #include "qapi/visitor.h"
19 #include "qapi-visit.h"
20 #include "qapi/string-input-visitor.h"
21 #include "qapi/string-output-visitor.h"
22 #include "qapi/qmp/qerror.h"
25 /* TODO: replace QObject with a simpler visitor to avoid a dependency
26 * of the QOM core on QObject? */
27 #include "qom/qom-qobject.h"
28 #include "qapi/qmp/qobject.h"
29 #include "qapi/qmp/qbool.h"
30 #include "qapi/qmp/qint.h"
31 #include "qapi/qmp/qstring.h"
33 #define MAX_INTERFACES 32
35 typedef struct InterfaceImpl InterfaceImpl
;
36 typedef struct TypeImpl TypeImpl
;
51 void (*class_init
)(ObjectClass
*klass
, void *data
);
52 void (*class_base_init
)(ObjectClass
*klass
, void *data
);
53 void (*class_finalize
)(ObjectClass
*klass
, void *data
);
57 void (*instance_init
)(Object
*obj
);
58 void (*instance_post_init
)(Object
*obj
);
59 void (*instance_finalize
)(Object
*obj
);
64 TypeImpl
*parent_type
;
69 InterfaceImpl interfaces
[MAX_INTERFACES
];
72 static Type type_interface
;
74 static GHashTable
*type_table_get(void)
76 static GHashTable
*type_table
;
78 if (type_table
== NULL
) {
79 type_table
= g_hash_table_new(g_str_hash
, g_str_equal
);
85 static bool enumerating_types
;
87 static void type_table_add(TypeImpl
*ti
)
89 assert(!enumerating_types
);
90 g_hash_table_insert(type_table_get(), (void *)ti
->name
, ti
);
93 static TypeImpl
*type_table_lookup(const char *name
)
95 return g_hash_table_lookup(type_table_get(), name
);
98 static TypeImpl
*type_new(const TypeInfo
*info
)
100 TypeImpl
*ti
= g_malloc0(sizeof(*ti
));
103 g_assert(info
->name
!= NULL
);
105 if (type_table_lookup(info
->name
) != NULL
) {
106 fprintf(stderr
, "Registering `%s' which already exists\n", info
->name
);
110 ti
->name
= g_strdup(info
->name
);
111 ti
->parent
= g_strdup(info
->parent
);
113 ti
->class_size
= info
->class_size
;
114 ti
->instance_size
= info
->instance_size
;
116 ti
->class_init
= info
->class_init
;
117 ti
->class_base_init
= info
->class_base_init
;
118 ti
->class_finalize
= info
->class_finalize
;
119 ti
->class_data
= info
->class_data
;
121 ti
->instance_init
= info
->instance_init
;
122 ti
->instance_post_init
= info
->instance_post_init
;
123 ti
->instance_finalize
= info
->instance_finalize
;
125 ti
->abstract
= info
->abstract
;
127 for (i
= 0; info
->interfaces
&& info
->interfaces
[i
].type
; i
++) {
128 ti
->interfaces
[i
].typename
= g_strdup(info
->interfaces
[i
].type
);
130 ti
->num_interfaces
= i
;
135 static TypeImpl
*type_register_internal(const TypeInfo
*info
)
144 TypeImpl
*type_register(const TypeInfo
*info
)
146 assert(info
->parent
);
147 return type_register_internal(info
);
150 TypeImpl
*type_register_static(const TypeInfo
*info
)
152 return type_register(info
);
155 static TypeImpl
*type_get_by_name(const char *name
)
161 return type_table_lookup(name
);
164 static TypeImpl
*type_get_parent(TypeImpl
*type
)
166 if (!type
->parent_type
&& type
->parent
) {
167 type
->parent_type
= type_get_by_name(type
->parent
);
168 g_assert(type
->parent_type
!= NULL
);
171 return type
->parent_type
;
174 static bool type_has_parent(TypeImpl
*type
)
176 return (type
->parent
!= NULL
);
179 static size_t type_class_get_size(TypeImpl
*ti
)
181 if (ti
->class_size
) {
182 return ti
->class_size
;
185 if (type_has_parent(ti
)) {
186 return type_class_get_size(type_get_parent(ti
));
189 return sizeof(ObjectClass
);
192 static size_t type_object_get_size(TypeImpl
*ti
)
194 if (ti
->instance_size
) {
195 return ti
->instance_size
;
198 if (type_has_parent(ti
)) {
199 return type_object_get_size(type_get_parent(ti
));
205 static bool type_is_ancestor(TypeImpl
*type
, TypeImpl
*target_type
)
209 /* Check if target_type is a direct ancestor of type */
211 if (type
== target_type
) {
215 type
= type_get_parent(type
);
221 static void type_initialize(TypeImpl
*ti
);
223 static void type_initialize_interface(TypeImpl
*ti
, TypeImpl
*interface_type
,
224 TypeImpl
*parent_type
)
226 InterfaceClass
*new_iface
;
228 TypeImpl
*iface_impl
;
230 info
.parent
= parent_type
->name
;
231 info
.name
= g_strdup_printf("%s::%s", ti
->name
, interface_type
->name
);
232 info
.abstract
= true;
234 iface_impl
= type_new(&info
);
235 iface_impl
->parent_type
= parent_type
;
236 type_initialize(iface_impl
);
237 g_free((char *)info
.name
);
239 new_iface
= (InterfaceClass
*)iface_impl
->class;
240 new_iface
->concrete_class
= ti
->class;
241 new_iface
->interface_type
= interface_type
;
243 ti
->class->interfaces
= g_slist_append(ti
->class->interfaces
,
247 static void object_property_free(gpointer data
)
249 ObjectProperty
*prop
= data
;
253 g_free(prop
->description
);
257 static void type_initialize(TypeImpl
*ti
)
265 ti
->class_size
= type_class_get_size(ti
);
266 ti
->instance_size
= type_object_get_size(ti
);
268 ti
->class = g_malloc0(ti
->class_size
);
270 parent
= type_get_parent(ti
);
272 type_initialize(parent
);
276 g_assert_cmpint(parent
->class_size
, <=, ti
->class_size
);
277 memcpy(ti
->class, parent
->class, parent
->class_size
);
278 ti
->class->interfaces
= NULL
;
279 ti
->class->properties
= g_hash_table_new_full(
280 g_str_hash
, g_str_equal
, g_free
, object_property_free
);
282 for (e
= parent
->class->interfaces
; e
; e
= e
->next
) {
283 InterfaceClass
*iface
= e
->data
;
284 ObjectClass
*klass
= OBJECT_CLASS(iface
);
286 type_initialize_interface(ti
, iface
->interface_type
, klass
->type
);
289 for (i
= 0; i
< ti
->num_interfaces
; i
++) {
290 TypeImpl
*t
= type_get_by_name(ti
->interfaces
[i
].typename
);
291 for (e
= ti
->class->interfaces
; e
; e
= e
->next
) {
292 TypeImpl
*target_type
= OBJECT_CLASS(e
->data
)->type
;
294 if (type_is_ancestor(target_type
, t
)) {
303 type_initialize_interface(ti
, t
, t
);
306 ti
->class->properties
= g_hash_table_new_full(
307 g_str_hash
, g_str_equal
, g_free
, object_property_free
);
310 ti
->class->type
= ti
;
313 if (parent
->class_base_init
) {
314 parent
->class_base_init(ti
->class, ti
->class_data
);
316 parent
= type_get_parent(parent
);
319 if (ti
->class_init
) {
320 ti
->class_init(ti
->class, ti
->class_data
);
324 static void object_init_with_type(Object
*obj
, TypeImpl
*ti
)
326 if (type_has_parent(ti
)) {
327 object_init_with_type(obj
, type_get_parent(ti
));
330 if (ti
->instance_init
) {
331 ti
->instance_init(obj
);
335 static void object_post_init_with_type(Object
*obj
, TypeImpl
*ti
)
337 if (ti
->instance_post_init
) {
338 ti
->instance_post_init(obj
);
341 if (type_has_parent(ti
)) {
342 object_post_init_with_type(obj
, type_get_parent(ti
));
346 void object_initialize_with_type(void *data
, size_t size
, TypeImpl
*type
)
350 g_assert(type
!= NULL
);
351 type_initialize(type
);
353 g_assert_cmpint(type
->instance_size
, >=, sizeof(Object
));
354 g_assert(type
->abstract
== false);
355 g_assert_cmpint(size
, >=, type
->instance_size
);
357 memset(obj
, 0, type
->instance_size
);
358 obj
->class = type
->class;
360 obj
->properties
= g_hash_table_new_full(g_str_hash
, g_str_equal
,
361 NULL
, object_property_free
);
362 object_init_with_type(obj
, type
);
363 object_post_init_with_type(obj
, type
);
366 void object_initialize(void *data
, size_t size
, const char *typename
)
368 TypeImpl
*type
= type_get_by_name(typename
);
370 object_initialize_with_type(data
, size
, type
);
373 static inline bool object_property_is_child(ObjectProperty
*prop
)
375 return strstart(prop
->type
, "child<", NULL
);
378 static void object_property_del_all(Object
*obj
)
380 ObjectProperty
*prop
;
387 g_hash_table_iter_init(&iter
, obj
->properties
);
388 while (g_hash_table_iter_next(&iter
, &key
, &value
)) {
391 prop
->release(obj
, prop
->name
, prop
->opaque
);
392 prop
->release
= NULL
;
396 g_hash_table_iter_remove(&iter
);
400 g_hash_table_unref(obj
->properties
);
403 static void object_property_del_child(Object
*obj
, Object
*child
, Error
**errp
)
405 ObjectProperty
*prop
;
409 g_hash_table_iter_init(&iter
, obj
->properties
);
410 while (g_hash_table_iter_next(&iter
, &key
, &value
)) {
412 if (object_property_is_child(prop
) && prop
->opaque
== child
) {
414 prop
->release(obj
, prop
->name
, prop
->opaque
);
415 prop
->release
= NULL
;
420 g_hash_table_iter_init(&iter
, obj
->properties
);
421 while (g_hash_table_iter_next(&iter
, &key
, &value
)) {
423 if (object_property_is_child(prop
) && prop
->opaque
== child
) {
424 g_hash_table_iter_remove(&iter
);
430 void object_unparent(Object
*obj
)
433 object_property_del_child(obj
->parent
, obj
, NULL
);
437 static void object_deinit(Object
*obj
, TypeImpl
*type
)
439 if (type
->instance_finalize
) {
440 type
->instance_finalize(obj
);
443 if (type_has_parent(type
)) {
444 object_deinit(obj
, type_get_parent(type
));
448 static void object_finalize(void *data
)
451 TypeImpl
*ti
= obj
->class->type
;
453 object_property_del_all(obj
);
454 object_deinit(obj
, ti
);
456 g_assert_cmpint(obj
->ref
, ==, 0);
462 Object
*object_new_with_type(Type type
)
466 g_assert(type
!= NULL
);
467 type_initialize(type
);
469 obj
= g_malloc(type
->instance_size
);
470 object_initialize_with_type(obj
, type
->instance_size
, type
);
476 Object
*object_new(const char *typename
)
478 TypeImpl
*ti
= type_get_by_name(typename
);
480 return object_new_with_type(ti
);
484 Object
*object_new_with_props(const char *typename
,
493 va_start(vargs
, errp
);
494 obj
= object_new_with_propv(typename
, parent
, id
, errp
, vargs
);
501 Object
*object_new_with_propv(const char *typename
,
509 Error
*local_err
= NULL
;
511 klass
= object_class_by_name(typename
);
513 error_setg(errp
, "invalid object type: %s", typename
);
517 if (object_class_is_abstract(klass
)) {
518 error_setg(errp
, "object type '%s' is abstract", typename
);
521 obj
= object_new(typename
);
523 if (object_set_propv(obj
, &local_err
, vargs
) < 0) {
527 object_property_add_child(parent
, id
, obj
, &local_err
);
532 if (object_dynamic_cast(obj
, TYPE_USER_CREATABLE
)) {
533 user_creatable_complete(obj
, &local_err
);
535 object_unparent(obj
);
540 object_unref(OBJECT(obj
));
545 error_propagate(errp
, local_err
);
552 int object_set_props(Object
*obj
,
559 va_start(vargs
, errp
);
560 ret
= object_set_propv(obj
, errp
, vargs
);
567 int object_set_propv(Object
*obj
,
571 const char *propname
;
572 Error
*local_err
= NULL
;
574 propname
= va_arg(vargs
, char *);
575 while (propname
!= NULL
) {
576 const char *value
= va_arg(vargs
, char *);
578 g_assert(value
!= NULL
);
579 object_property_parse(obj
, value
, propname
, &local_err
);
581 error_propagate(errp
, local_err
);
584 propname
= va_arg(vargs
, char *);
591 Object
*object_dynamic_cast(Object
*obj
, const char *typename
)
593 if (obj
&& object_class_dynamic_cast(object_get_class(obj
), typename
)) {
600 Object
*object_dynamic_cast_assert(Object
*obj
, const char *typename
,
601 const char *file
, int line
, const char *func
)
603 trace_object_dynamic_cast_assert(obj
? obj
->class->type
->name
: "(null)",
604 typename
, file
, line
, func
);
606 #ifdef CONFIG_QOM_CAST_DEBUG
610 for (i
= 0; obj
&& i
< OBJECT_CLASS_CAST_CACHE
; i
++) {
611 if (obj
->class->object_cast_cache
[i
] == typename
) {
616 inst
= object_dynamic_cast(obj
, typename
);
619 fprintf(stderr
, "%s:%d:%s: Object %p is not an instance of type %s\n",
620 file
, line
, func
, obj
, typename
);
626 if (obj
&& obj
== inst
) {
627 for (i
= 1; i
< OBJECT_CLASS_CAST_CACHE
; i
++) {
628 obj
->class->object_cast_cache
[i
- 1] =
629 obj
->class->object_cast_cache
[i
];
631 obj
->class->object_cast_cache
[i
- 1] = typename
;
639 ObjectClass
*object_class_dynamic_cast(ObjectClass
*class,
640 const char *typename
)
642 ObjectClass
*ret
= NULL
;
643 TypeImpl
*target_type
;
650 /* A simple fast path that can trigger a lot for leaf classes. */
652 if (type
->name
== typename
) {
656 target_type
= type_get_by_name(typename
);
658 /* target class type unknown, so fail the cast */
662 if (type
->class->interfaces
&&
663 type_is_ancestor(target_type
, type_interface
)) {
667 for (i
= class->interfaces
; i
; i
= i
->next
) {
668 ObjectClass
*target_class
= i
->data
;
670 if (type_is_ancestor(target_class
->type
, target_type
)) {
676 /* The match was ambiguous, don't allow a cast */
680 } else if (type_is_ancestor(type
, target_type
)) {
687 ObjectClass
*object_class_dynamic_cast_assert(ObjectClass
*class,
688 const char *typename
,
689 const char *file
, int line
,
694 trace_object_class_dynamic_cast_assert(class ? class->type
->name
: "(null)",
695 typename
, file
, line
, func
);
697 #ifdef CONFIG_QOM_CAST_DEBUG
700 for (i
= 0; class && i
< OBJECT_CLASS_CAST_CACHE
; i
++) {
701 if (class->class_cast_cache
[i
] == typename
) {
707 if (!class || !class->interfaces
) {
712 ret
= object_class_dynamic_cast(class, typename
);
714 fprintf(stderr
, "%s:%d:%s: Object %p is not an instance of type %s\n",
715 file
, line
, func
, class, typename
);
719 #ifdef CONFIG_QOM_CAST_DEBUG
720 if (class && ret
== class) {
721 for (i
= 1; i
< OBJECT_CLASS_CAST_CACHE
; i
++) {
722 class->class_cast_cache
[i
- 1] = class->class_cast_cache
[i
];
724 class->class_cast_cache
[i
- 1] = typename
;
731 const char *object_get_typename(Object
*obj
)
733 return obj
->class->type
->name
;
736 ObjectClass
*object_get_class(Object
*obj
)
741 bool object_class_is_abstract(ObjectClass
*klass
)
743 return klass
->type
->abstract
;
746 const char *object_class_get_name(ObjectClass
*klass
)
748 return klass
->type
->name
;
751 ObjectClass
*object_class_by_name(const char *typename
)
753 TypeImpl
*type
= type_get_by_name(typename
);
759 type_initialize(type
);
764 ObjectClass
*object_class_get_parent(ObjectClass
*class)
766 TypeImpl
*type
= type_get_parent(class->type
);
772 type_initialize(type
);
777 typedef struct OCFData
779 void (*fn
)(ObjectClass
*klass
, void *opaque
);
780 const char *implements_type
;
781 bool include_abstract
;
785 static void object_class_foreach_tramp(gpointer key
, gpointer value
,
788 OCFData
*data
= opaque
;
789 TypeImpl
*type
= value
;
792 type_initialize(type
);
795 if (!data
->include_abstract
&& type
->abstract
) {
799 if (data
->implements_type
&&
800 !object_class_dynamic_cast(k
, data
->implements_type
)) {
804 data
->fn(k
, data
->opaque
);
807 void object_class_foreach(void (*fn
)(ObjectClass
*klass
, void *opaque
),
808 const char *implements_type
, bool include_abstract
,
811 OCFData data
= { fn
, implements_type
, include_abstract
, opaque
};
813 enumerating_types
= true;
814 g_hash_table_foreach(type_table_get(), object_class_foreach_tramp
, &data
);
815 enumerating_types
= false;
818 static int do_object_child_foreach(Object
*obj
,
819 int (*fn
)(Object
*child
, void *opaque
),
820 void *opaque
, bool recurse
)
823 ObjectProperty
*prop
;
826 g_hash_table_iter_init(&iter
, obj
->properties
);
827 while (g_hash_table_iter_next(&iter
, NULL
, (gpointer
*)&prop
)) {
828 if (object_property_is_child(prop
)) {
829 Object
*child
= prop
->opaque
;
831 ret
= fn(child
, opaque
);
836 do_object_child_foreach(child
, fn
, opaque
, true);
843 int object_child_foreach(Object
*obj
, int (*fn
)(Object
*child
, void *opaque
),
846 return do_object_child_foreach(obj
, fn
, opaque
, false);
849 int object_child_foreach_recursive(Object
*obj
,
850 int (*fn
)(Object
*child
, void *opaque
),
853 return do_object_child_foreach(obj
, fn
, opaque
, true);
856 static void object_class_get_list_tramp(ObjectClass
*klass
, void *opaque
)
858 GSList
**list
= opaque
;
860 *list
= g_slist_prepend(*list
, klass
);
863 GSList
*object_class_get_list(const char *implements_type
,
864 bool include_abstract
)
868 object_class_foreach(object_class_get_list_tramp
,
869 implements_type
, include_abstract
, &list
);
873 void object_ref(Object
*obj
)
878 atomic_inc(&obj
->ref
);
881 void object_unref(Object
*obj
)
886 g_assert_cmpint(obj
->ref
, >, 0);
888 /* parent always holds a reference to its children */
889 if (atomic_fetch_dec(&obj
->ref
) == 1) {
890 object_finalize(obj
);
895 object_property_add(Object
*obj
, const char *name
, const char *type
,
896 ObjectPropertyAccessor
*get
,
897 ObjectPropertyAccessor
*set
,
898 ObjectPropertyRelease
*release
,
899 void *opaque
, Error
**errp
)
901 ObjectProperty
*prop
;
902 size_t name_len
= strlen(name
);
904 if (name_len
>= 3 && !memcmp(name
+ name_len
- 3, "[*]", 4)) {
907 char *name_no_array
= g_strdup(name
);
909 name_no_array
[name_len
- 3] = '\0';
911 char *full_name
= g_strdup_printf("%s[%d]", name_no_array
, i
);
913 ret
= object_property_add(obj
, full_name
, type
, get
, set
,
914 release
, opaque
, NULL
);
920 g_free(name_no_array
);
924 if (object_property_find(obj
, name
, NULL
) != NULL
) {
925 error_setg(errp
, "attempt to add duplicate property '%s'"
926 " to object (type '%s')", name
,
927 object_get_typename(obj
));
931 prop
= g_malloc0(sizeof(*prop
));
933 prop
->name
= g_strdup(name
);
934 prop
->type
= g_strdup(type
);
938 prop
->release
= release
;
939 prop
->opaque
= opaque
;
941 g_hash_table_insert(obj
->properties
, prop
->name
, prop
);
946 object_class_property_add(ObjectClass
*klass
,
949 ObjectPropertyAccessor
*get
,
950 ObjectPropertyAccessor
*set
,
951 ObjectPropertyRelease
*release
,
955 ObjectProperty
*prop
;
957 if (object_class_property_find(klass
, name
, NULL
) != NULL
) {
958 error_setg(errp
, "attempt to add duplicate property '%s'"
959 " to object (type '%s')", name
,
960 object_class_get_name(klass
));
964 prop
= g_malloc0(sizeof(*prop
));
966 prop
->name
= g_strdup(name
);
967 prop
->type
= g_strdup(type
);
971 prop
->release
= release
;
972 prop
->opaque
= opaque
;
974 g_hash_table_insert(klass
->properties
, g_strdup(name
), prop
);
979 ObjectProperty
*object_property_find(Object
*obj
, const char *name
,
982 ObjectProperty
*prop
;
983 ObjectClass
*klass
= object_get_class(obj
);
985 prop
= object_class_property_find(klass
, name
, NULL
);
990 prop
= g_hash_table_lookup(obj
->properties
, name
);
995 error_setg(errp
, "Property '.%s' not found", name
);
999 void object_property_iter_init(ObjectPropertyIterator
*iter
,
1002 g_hash_table_iter_init(&iter
->iter
, obj
->properties
);
1003 iter
->nextclass
= object_get_class(obj
);
1006 ObjectProperty
*object_property_iter_next(ObjectPropertyIterator
*iter
)
1009 while (!g_hash_table_iter_next(&iter
->iter
, &key
, &val
)) {
1010 if (!iter
->nextclass
) {
1013 g_hash_table_iter_init(&iter
->iter
, iter
->nextclass
->properties
);
1014 iter
->nextclass
= object_class_get_parent(iter
->nextclass
);
1019 ObjectProperty
*object_class_property_find(ObjectClass
*klass
, const char *name
,
1022 ObjectProperty
*prop
;
1023 ObjectClass
*parent_klass
;
1025 parent_klass
= object_class_get_parent(klass
);
1027 prop
= object_class_property_find(parent_klass
, name
, NULL
);
1033 prop
= g_hash_table_lookup(klass
->properties
, name
);
1035 error_setg(errp
, "Property '.%s' not found", name
);
1040 void object_property_del(Object
*obj
, const char *name
, Error
**errp
)
1042 ObjectProperty
*prop
= g_hash_table_lookup(obj
->properties
, name
);
1045 error_setg(errp
, "Property '.%s' not found", name
);
1049 if (prop
->release
) {
1050 prop
->release(obj
, name
, prop
->opaque
);
1052 g_hash_table_remove(obj
->properties
, name
);
1055 void object_property_get(Object
*obj
, Visitor
*v
, const char *name
,
1058 ObjectProperty
*prop
= object_property_find(obj
, name
, errp
);
1064 error_setg(errp
, QERR_PERMISSION_DENIED
);
1066 prop
->get(obj
, v
, name
, prop
->opaque
, errp
);
1070 void object_property_set(Object
*obj
, Visitor
*v
, const char *name
,
1073 ObjectProperty
*prop
= object_property_find(obj
, name
, errp
);
1079 error_setg(errp
, QERR_PERMISSION_DENIED
);
1081 prop
->set(obj
, v
, name
, prop
->opaque
, errp
);
1085 void object_property_set_str(Object
*obj
, const char *value
,
1086 const char *name
, Error
**errp
)
1088 QString
*qstr
= qstring_from_str(value
);
1089 object_property_set_qobject(obj
, QOBJECT(qstr
), name
, errp
);
1094 char *object_property_get_str(Object
*obj
, const char *name
,
1097 QObject
*ret
= object_property_get_qobject(obj
, name
, errp
);
1104 qstring
= qobject_to_qstring(ret
);
1106 error_setg(errp
, QERR_INVALID_PARAMETER_TYPE
, name
, "string");
1109 retval
= g_strdup(qstring_get_str(qstring
));
1116 void object_property_set_link(Object
*obj
, Object
*value
,
1117 const char *name
, Error
**errp
)
1120 gchar
*path
= object_get_canonical_path(value
);
1121 object_property_set_str(obj
, path
, name
, errp
);
1124 object_property_set_str(obj
, "", name
, errp
);
1128 Object
*object_property_get_link(Object
*obj
, const char *name
,
1131 char *str
= object_property_get_str(obj
, name
, errp
);
1132 Object
*target
= NULL
;
1135 target
= object_resolve_path(str
, NULL
);
1137 error_set(errp
, ERROR_CLASS_DEVICE_NOT_FOUND
,
1138 "Device '%s' not found", str
);
1146 void object_property_set_bool(Object
*obj
, bool value
,
1147 const char *name
, Error
**errp
)
1149 QBool
*qbool
= qbool_from_bool(value
);
1150 object_property_set_qobject(obj
, QOBJECT(qbool
), name
, errp
);
1155 bool object_property_get_bool(Object
*obj
, const char *name
,
1158 QObject
*ret
= object_property_get_qobject(obj
, name
, errp
);
1165 qbool
= qobject_to_qbool(ret
);
1167 error_setg(errp
, QERR_INVALID_PARAMETER_TYPE
, name
, "boolean");
1170 retval
= qbool_get_bool(qbool
);
1177 void object_property_set_int(Object
*obj
, int64_t value
,
1178 const char *name
, Error
**errp
)
1180 QInt
*qint
= qint_from_int(value
);
1181 object_property_set_qobject(obj
, QOBJECT(qint
), name
, errp
);
1186 int64_t object_property_get_int(Object
*obj
, const char *name
,
1189 QObject
*ret
= object_property_get_qobject(obj
, name
, errp
);
1196 qint
= qobject_to_qint(ret
);
1198 error_setg(errp
, QERR_INVALID_PARAMETER_TYPE
, name
, "int");
1201 retval
= qint_get_int(qint
);
1208 typedef struct EnumProperty
{
1209 const char * const *strings
;
1210 int (*get
)(Object
*, Error
**);
1211 void (*set
)(Object
*, int, Error
**);
1214 int object_property_get_enum(Object
*obj
, const char *name
,
1215 const char *typename
, Error
**errp
)
1218 StringOutputVisitor
*sov
;
1219 StringInputVisitor
*siv
;
1222 ObjectProperty
*prop
= object_property_find(obj
, name
, errp
);
1223 EnumProperty
*enumprop
;
1229 if (!g_str_equal(prop
->type
, typename
)) {
1230 error_setg(errp
, "Property %s on %s is not '%s' enum type",
1231 name
, object_class_get_name(
1232 object_get_class(obj
)), typename
);
1236 enumprop
= prop
->opaque
;
1238 sov
= string_output_visitor_new(false);
1239 object_property_get(obj
, string_output_get_visitor(sov
), name
, &err
);
1241 error_propagate(errp
, err
);
1242 string_output_visitor_cleanup(sov
);
1245 str
= string_output_get_string(sov
);
1246 siv
= string_input_visitor_new(str
);
1247 string_output_visitor_cleanup(sov
);
1248 visit_type_enum(string_input_get_visitor(siv
), name
, &ret
,
1249 enumprop
->strings
, errp
);
1252 string_input_visitor_cleanup(siv
);
1257 void object_property_get_uint16List(Object
*obj
, const char *name
,
1258 uint16List
**list
, Error
**errp
)
1261 StringOutputVisitor
*ov
;
1262 StringInputVisitor
*iv
;
1265 ov
= string_output_visitor_new(false);
1266 object_property_get(obj
, string_output_get_visitor(ov
),
1269 error_propagate(errp
, err
);
1272 str
= string_output_get_string(ov
);
1273 iv
= string_input_visitor_new(str
);
1274 visit_type_uint16List(string_input_get_visitor(iv
), NULL
, list
, errp
);
1277 string_input_visitor_cleanup(iv
);
1279 string_output_visitor_cleanup(ov
);
1282 void object_property_parse(Object
*obj
, const char *string
,
1283 const char *name
, Error
**errp
)
1285 StringInputVisitor
*siv
;
1286 siv
= string_input_visitor_new(string
);
1287 object_property_set(obj
, string_input_get_visitor(siv
), name
, errp
);
1289 string_input_visitor_cleanup(siv
);
1292 char *object_property_print(Object
*obj
, const char *name
, bool human
,
1295 StringOutputVisitor
*sov
;
1296 char *string
= NULL
;
1297 Error
*local_err
= NULL
;
1299 sov
= string_output_visitor_new(human
);
1300 object_property_get(obj
, string_output_get_visitor(sov
), name
, &local_err
);
1302 error_propagate(errp
, local_err
);
1306 string
= string_output_get_string(sov
);
1309 string_output_visitor_cleanup(sov
);
1313 const char *object_property_get_type(Object
*obj
, const char *name
, Error
**errp
)
1315 ObjectProperty
*prop
= object_property_find(obj
, name
, errp
);
1323 Object
*object_get_root(void)
1325 static Object
*root
;
1328 root
= object_new("container");
1334 Object
*object_get_objects_root(void)
1336 return container_get(object_get_root(), "/objects");
1339 static void object_get_child_property(Object
*obj
, Visitor
*v
,
1340 const char *name
, void *opaque
,
1343 Object
*child
= opaque
;
1346 path
= object_get_canonical_path(child
);
1347 visit_type_str(v
, name
, &path
, errp
);
1351 static Object
*object_resolve_child_property(Object
*parent
, void *opaque
, const gchar
*part
)
1356 static void object_finalize_child_property(Object
*obj
, const char *name
,
1359 Object
*child
= opaque
;
1361 if (child
->class->unparent
) {
1362 (child
->class->unparent
)(child
);
1364 child
->parent
= NULL
;
1365 object_unref(child
);
1368 void object_property_add_child(Object
*obj
, const char *name
,
1369 Object
*child
, Error
**errp
)
1371 Error
*local_err
= NULL
;
1375 if (child
->parent
!= NULL
) {
1376 error_setg(errp
, "child object is already parented");
1380 type
= g_strdup_printf("child<%s>", object_get_typename(OBJECT(child
)));
1382 op
= object_property_add(obj
, name
, type
, object_get_child_property
, NULL
,
1383 object_finalize_child_property
, child
, &local_err
);
1385 error_propagate(errp
, local_err
);
1389 op
->resolve
= object_resolve_child_property
;
1391 child
->parent
= obj
;
1397 void object_property_allow_set_link(Object
*obj
, const char *name
,
1398 Object
*val
, Error
**errp
)
1400 /* Allow the link to be set, always */
1405 void (*check
)(Object
*, const char *, Object
*, Error
**);
1406 ObjectPropertyLinkFlags flags
;
1409 static void object_get_link_property(Object
*obj
, Visitor
*v
,
1410 const char *name
, void *opaque
,
1413 LinkProperty
*lprop
= opaque
;
1414 Object
**child
= lprop
->child
;
1418 path
= object_get_canonical_path(*child
);
1419 visit_type_str(v
, name
, &path
, errp
);
1423 visit_type_str(v
, name
, &path
, errp
);
1428 * object_resolve_link:
1430 * Lookup an object and ensure its type matches the link property type. This
1431 * is similar to object_resolve_path() except type verification against the
1432 * link property is performed.
1434 * Returns: The matched object or NULL on path lookup failures.
1436 static Object
*object_resolve_link(Object
*obj
, const char *name
,
1437 const char *path
, Error
**errp
)
1441 bool ambiguous
= false;
1444 /* Go from link<FOO> to FOO. */
1445 type
= object_property_get_type(obj
, name
, NULL
);
1446 target_type
= g_strndup(&type
[5], strlen(type
) - 6);
1447 target
= object_resolve_path_type(path
, target_type
, &ambiguous
);
1450 error_setg(errp
, "Path '%s' does not uniquely identify an object",
1452 } else if (!target
) {
1453 target
= object_resolve_path(path
, &ambiguous
);
1454 if (target
|| ambiguous
) {
1455 error_setg(errp
, QERR_INVALID_PARAMETER_TYPE
, name
, target_type
);
1457 error_set(errp
, ERROR_CLASS_DEVICE_NOT_FOUND
,
1458 "Device '%s' not found", path
);
1462 g_free(target_type
);
1467 static void object_set_link_property(Object
*obj
, Visitor
*v
,
1468 const char *name
, void *opaque
,
1471 Error
*local_err
= NULL
;
1472 LinkProperty
*prop
= opaque
;
1473 Object
**child
= prop
->child
;
1474 Object
*old_target
= *child
;
1475 Object
*new_target
= NULL
;
1478 visit_type_str(v
, name
, &path
, &local_err
);
1480 if (!local_err
&& strcmp(path
, "") != 0) {
1481 new_target
= object_resolve_link(obj
, name
, path
, &local_err
);
1486 error_propagate(errp
, local_err
);
1490 prop
->check(obj
, name
, new_target
, &local_err
);
1492 error_propagate(errp
, local_err
);
1496 object_ref(new_target
);
1497 *child
= new_target
;
1498 object_unref(old_target
);
1501 static Object
*object_resolve_link_property(Object
*parent
, void *opaque
, const gchar
*part
)
1503 LinkProperty
*lprop
= opaque
;
1505 return *lprop
->child
;
1508 static void object_release_link_property(Object
*obj
, const char *name
,
1511 LinkProperty
*prop
= opaque
;
1513 if ((prop
->flags
& OBJ_PROP_LINK_UNREF_ON_RELEASE
) && *prop
->child
) {
1514 object_unref(*prop
->child
);
1519 void object_property_add_link(Object
*obj
, const char *name
,
1520 const char *type
, Object
**child
,
1521 void (*check
)(Object
*, const char *,
1522 Object
*, Error
**),
1523 ObjectPropertyLinkFlags flags
,
1526 Error
*local_err
= NULL
;
1527 LinkProperty
*prop
= g_malloc(sizeof(*prop
));
1531 prop
->child
= child
;
1532 prop
->check
= check
;
1533 prop
->flags
= flags
;
1535 full_type
= g_strdup_printf("link<%s>", type
);
1537 op
= object_property_add(obj
, name
, full_type
,
1538 object_get_link_property
,
1539 check
? object_set_link_property
: NULL
,
1540 object_release_link_property
,
1544 error_propagate(errp
, local_err
);
1549 op
->resolve
= object_resolve_link_property
;
1555 void object_property_add_const_link(Object
*obj
, const char *name
,
1556 Object
*target
, Error
**errp
)
1561 link_type
= g_strdup_printf("link<%s>", object_get_typename(target
));
1562 op
= object_property_add(obj
, name
, link_type
,
1563 object_get_child_property
, NULL
,
1564 NULL
, target
, errp
);
1566 op
->resolve
= object_resolve_child_property
;
1571 gchar
*object_get_canonical_path_component(Object
*obj
)
1573 ObjectProperty
*prop
= NULL
;
1574 GHashTableIter iter
;
1577 g_assert(obj
->parent
!= NULL
);
1579 g_hash_table_iter_init(&iter
, obj
->parent
->properties
);
1580 while (g_hash_table_iter_next(&iter
, NULL
, (gpointer
*)&prop
)) {
1581 if (!object_property_is_child(prop
)) {
1585 if (prop
->opaque
== obj
) {
1586 return g_strdup(prop
->name
);
1590 /* obj had a parent but was not a child, should never happen */
1591 g_assert_not_reached();
1595 gchar
*object_get_canonical_path(Object
*obj
)
1597 Object
*root
= object_get_root();
1598 char *newpath
, *path
= NULL
;
1600 while (obj
!= root
) {
1601 char *component
= object_get_canonical_path_component(obj
);
1604 newpath
= g_strdup_printf("%s/%s", component
, path
);
1615 newpath
= g_strdup_printf("/%s", path
? path
: "");
1621 Object
*object_resolve_path_component(Object
*parent
, const gchar
*part
)
1623 ObjectProperty
*prop
= object_property_find(parent
, part
, NULL
);
1628 if (prop
->resolve
) {
1629 return prop
->resolve(parent
, prop
->opaque
, part
);
1635 static Object
*object_resolve_abs_path(Object
*parent
,
1637 const char *typename
,
1642 if (parts
[index
] == NULL
) {
1643 return object_dynamic_cast(parent
, typename
);
1646 if (strcmp(parts
[index
], "") == 0) {
1647 return object_resolve_abs_path(parent
, parts
, typename
, index
+ 1);
1650 child
= object_resolve_path_component(parent
, parts
[index
]);
1655 return object_resolve_abs_path(child
, parts
, typename
, index
+ 1);
1658 static Object
*object_resolve_partial_path(Object
*parent
,
1660 const char *typename
,
1664 GHashTableIter iter
;
1665 ObjectProperty
*prop
;
1667 obj
= object_resolve_abs_path(parent
, parts
, typename
, 0);
1669 g_hash_table_iter_init(&iter
, parent
->properties
);
1670 while (g_hash_table_iter_next(&iter
, NULL
, (gpointer
*)&prop
)) {
1673 if (!object_property_is_child(prop
)) {
1677 found
= object_resolve_partial_path(prop
->opaque
, parts
,
1678 typename
, ambiguous
);
1689 if (ambiguous
&& *ambiguous
) {
1697 Object
*object_resolve_path_type(const char *path
, const char *typename
,
1703 parts
= g_strsplit(path
, "/", 0);
1706 if (parts
[0] == NULL
|| strcmp(parts
[0], "") != 0) {
1710 obj
= object_resolve_partial_path(object_get_root(), parts
,
1711 typename
, ambiguous
);
1713 obj
= object_resolve_abs_path(object_get_root(), parts
, typename
, 1);
1721 Object
*object_resolve_path(const char *path
, bool *ambiguous
)
1723 return object_resolve_path_type(path
, TYPE_OBJECT
, ambiguous
);
1726 typedef struct StringProperty
1728 char *(*get
)(Object
*, Error
**);
1729 void (*set
)(Object
*, const char *, Error
**);
1732 static void property_get_str(Object
*obj
, Visitor
*v
, const char *name
,
1733 void *opaque
, Error
**errp
)
1735 StringProperty
*prop
= opaque
;
1739 value
= prop
->get(obj
, &err
);
1741 error_propagate(errp
, err
);
1745 visit_type_str(v
, name
, &value
, errp
);
1749 static void property_set_str(Object
*obj
, Visitor
*v
, const char *name
,
1750 void *opaque
, Error
**errp
)
1752 StringProperty
*prop
= opaque
;
1754 Error
*local_err
= NULL
;
1756 visit_type_str(v
, name
, &value
, &local_err
);
1758 error_propagate(errp
, local_err
);
1762 prop
->set(obj
, value
, errp
);
1766 static void property_release_str(Object
*obj
, const char *name
,
1769 StringProperty
*prop
= opaque
;
1773 void object_property_add_str(Object
*obj
, const char *name
,
1774 char *(*get
)(Object
*, Error
**),
1775 void (*set
)(Object
*, const char *, Error
**),
1778 Error
*local_err
= NULL
;
1779 StringProperty
*prop
= g_malloc0(sizeof(*prop
));
1784 object_property_add(obj
, name
, "string",
1785 get
? property_get_str
: NULL
,
1786 set
? property_set_str
: NULL
,
1787 property_release_str
,
1790 error_propagate(errp
, local_err
);
1795 void object_class_property_add_str(ObjectClass
*klass
, const char *name
,
1796 char *(*get
)(Object
*, Error
**),
1797 void (*set
)(Object
*, const char *,
1801 Error
*local_err
= NULL
;
1802 StringProperty
*prop
= g_malloc0(sizeof(*prop
));
1807 object_class_property_add(klass
, name
, "string",
1808 get
? property_get_str
: NULL
,
1809 set
? property_set_str
: NULL
,
1810 property_release_str
,
1813 error_propagate(errp
, local_err
);
1818 typedef struct BoolProperty
1820 bool (*get
)(Object
*, Error
**);
1821 void (*set
)(Object
*, bool, Error
**);
1824 static void property_get_bool(Object
*obj
, Visitor
*v
, const char *name
,
1825 void *opaque
, Error
**errp
)
1827 BoolProperty
*prop
= opaque
;
1831 value
= prop
->get(obj
, &err
);
1833 error_propagate(errp
, err
);
1837 visit_type_bool(v
, name
, &value
, errp
);
1840 static void property_set_bool(Object
*obj
, Visitor
*v
, const char *name
,
1841 void *opaque
, Error
**errp
)
1843 BoolProperty
*prop
= opaque
;
1845 Error
*local_err
= NULL
;
1847 visit_type_bool(v
, name
, &value
, &local_err
);
1849 error_propagate(errp
, local_err
);
1853 prop
->set(obj
, value
, errp
);
1856 static void property_release_bool(Object
*obj
, const char *name
,
1859 BoolProperty
*prop
= opaque
;
1863 void object_property_add_bool(Object
*obj
, const char *name
,
1864 bool (*get
)(Object
*, Error
**),
1865 void (*set
)(Object
*, bool, Error
**),
1868 Error
*local_err
= NULL
;
1869 BoolProperty
*prop
= g_malloc0(sizeof(*prop
));
1874 object_property_add(obj
, name
, "bool",
1875 get
? property_get_bool
: NULL
,
1876 set
? property_set_bool
: NULL
,
1877 property_release_bool
,
1880 error_propagate(errp
, local_err
);
1885 void object_class_property_add_bool(ObjectClass
*klass
, const char *name
,
1886 bool (*get
)(Object
*, Error
**),
1887 void (*set
)(Object
*, bool, Error
**),
1890 Error
*local_err
= NULL
;
1891 BoolProperty
*prop
= g_malloc0(sizeof(*prop
));
1896 object_class_property_add(klass
, name
, "bool",
1897 get
? property_get_bool
: NULL
,
1898 set
? property_set_bool
: NULL
,
1899 property_release_bool
,
1902 error_propagate(errp
, local_err
);
1907 static void property_get_enum(Object
*obj
, Visitor
*v
, const char *name
,
1908 void *opaque
, Error
**errp
)
1910 EnumProperty
*prop
= opaque
;
1914 value
= prop
->get(obj
, &err
);
1916 error_propagate(errp
, err
);
1920 visit_type_enum(v
, name
, &value
, prop
->strings
, errp
);
1923 static void property_set_enum(Object
*obj
, Visitor
*v
, const char *name
,
1924 void *opaque
, Error
**errp
)
1926 EnumProperty
*prop
= opaque
;
1930 visit_type_enum(v
, name
, &value
, prop
->strings
, &err
);
1932 error_propagate(errp
, err
);
1935 prop
->set(obj
, value
, errp
);
1938 static void property_release_enum(Object
*obj
, const char *name
,
1941 EnumProperty
*prop
= opaque
;
1945 void object_property_add_enum(Object
*obj
, const char *name
,
1946 const char *typename
,
1947 const char * const *strings
,
1948 int (*get
)(Object
*, Error
**),
1949 void (*set
)(Object
*, int, Error
**),
1952 Error
*local_err
= NULL
;
1953 EnumProperty
*prop
= g_malloc(sizeof(*prop
));
1955 prop
->strings
= strings
;
1959 object_property_add(obj
, name
, typename
,
1960 get
? property_get_enum
: NULL
,
1961 set
? property_set_enum
: NULL
,
1962 property_release_enum
,
1965 error_propagate(errp
, local_err
);
1970 void object_class_property_add_enum(ObjectClass
*klass
, const char *name
,
1971 const char *typename
,
1972 const char * const *strings
,
1973 int (*get
)(Object
*, Error
**),
1974 void (*set
)(Object
*, int, Error
**),
1977 Error
*local_err
= NULL
;
1978 EnumProperty
*prop
= g_malloc(sizeof(*prop
));
1980 prop
->strings
= strings
;
1984 object_class_property_add(klass
, name
, typename
,
1985 get
? property_get_enum
: NULL
,
1986 set
? property_set_enum
: NULL
,
1987 property_release_enum
,
1990 error_propagate(errp
, local_err
);
1995 typedef struct TMProperty
{
1996 void (*get
)(Object
*, struct tm
*, Error
**);
1999 static void property_get_tm(Object
*obj
, Visitor
*v
, const char *name
,
2000 void *opaque
, Error
**errp
)
2002 TMProperty
*prop
= opaque
;
2006 prop
->get(obj
, &value
, &err
);
2011 visit_start_struct(v
, name
, NULL
, 0, &err
);
2015 visit_type_int32(v
, "tm_year", &value
.tm_year
, &err
);
2019 visit_type_int32(v
, "tm_mon", &value
.tm_mon
, &err
);
2023 visit_type_int32(v
, "tm_mday", &value
.tm_mday
, &err
);
2027 visit_type_int32(v
, "tm_hour", &value
.tm_hour
, &err
);
2031 visit_type_int32(v
, "tm_min", &value
.tm_min
, &err
);
2035 visit_type_int32(v
, "tm_sec", &value
.tm_sec
, &err
);
2039 visit_check_struct(v
, &err
);
2041 visit_end_struct(v
);
2043 error_propagate(errp
, err
);
2047 static void property_release_tm(Object
*obj
, const char *name
,
2050 TMProperty
*prop
= opaque
;
2054 void object_property_add_tm(Object
*obj
, const char *name
,
2055 void (*get
)(Object
*, struct tm
*, Error
**),
2058 Error
*local_err
= NULL
;
2059 TMProperty
*prop
= g_malloc0(sizeof(*prop
));
2063 object_property_add(obj
, name
, "struct tm",
2064 get
? property_get_tm
: NULL
, NULL
,
2065 property_release_tm
,
2068 error_propagate(errp
, local_err
);
2073 void object_class_property_add_tm(ObjectClass
*klass
, const char *name
,
2074 void (*get
)(Object
*, struct tm
*, Error
**),
2077 Error
*local_err
= NULL
;
2078 TMProperty
*prop
= g_malloc0(sizeof(*prop
));
2082 object_class_property_add(klass
, name
, "struct tm",
2083 get
? property_get_tm
: NULL
, NULL
,
2084 property_release_tm
,
2087 error_propagate(errp
, local_err
);
2092 static char *qdev_get_type(Object
*obj
, Error
**errp
)
2094 return g_strdup(object_get_typename(obj
));
2097 static void property_get_uint8_ptr(Object
*obj
, Visitor
*v
, const char *name
,
2098 void *opaque
, Error
**errp
)
2100 uint8_t value
= *(uint8_t *)opaque
;
2101 visit_type_uint8(v
, name
, &value
, errp
);
2104 static void property_get_uint16_ptr(Object
*obj
, Visitor
*v
, const char *name
,
2105 void *opaque
, Error
**errp
)
2107 uint16_t value
= *(uint16_t *)opaque
;
2108 visit_type_uint16(v
, name
, &value
, errp
);
2111 static void property_get_uint32_ptr(Object
*obj
, Visitor
*v
, const char *name
,
2112 void *opaque
, Error
**errp
)
2114 uint32_t value
= *(uint32_t *)opaque
;
2115 visit_type_uint32(v
, name
, &value
, errp
);
2118 static void property_get_uint64_ptr(Object
*obj
, Visitor
*v
, const char *name
,
2119 void *opaque
, Error
**errp
)
2121 uint64_t value
= *(uint64_t *)opaque
;
2122 visit_type_uint64(v
, name
, &value
, errp
);
2125 void object_property_add_uint8_ptr(Object
*obj
, const char *name
,
2126 const uint8_t *v
, Error
**errp
)
2128 object_property_add(obj
, name
, "uint8", property_get_uint8_ptr
,
2129 NULL
, NULL
, (void *)v
, errp
);
2132 void object_class_property_add_uint8_ptr(ObjectClass
*klass
, const char *name
,
2133 const uint8_t *v
, Error
**errp
)
2135 object_class_property_add(klass
, name
, "uint8", property_get_uint8_ptr
,
2136 NULL
, NULL
, (void *)v
, errp
);
2139 void object_property_add_uint16_ptr(Object
*obj
, const char *name
,
2140 const uint16_t *v
, Error
**errp
)
2142 object_property_add(obj
, name
, "uint16", property_get_uint16_ptr
,
2143 NULL
, NULL
, (void *)v
, errp
);
2146 void object_class_property_add_uint16_ptr(ObjectClass
*klass
, const char *name
,
2147 const uint16_t *v
, Error
**errp
)
2149 object_class_property_add(klass
, name
, "uint16", property_get_uint16_ptr
,
2150 NULL
, NULL
, (void *)v
, errp
);
2153 void object_property_add_uint32_ptr(Object
*obj
, const char *name
,
2154 const uint32_t *v
, Error
**errp
)
2156 object_property_add(obj
, name
, "uint32", property_get_uint32_ptr
,
2157 NULL
, NULL
, (void *)v
, errp
);
2160 void object_class_property_add_uint32_ptr(ObjectClass
*klass
, const char *name
,
2161 const uint32_t *v
, Error
**errp
)
2163 object_class_property_add(klass
, name
, "uint32", property_get_uint32_ptr
,
2164 NULL
, NULL
, (void *)v
, errp
);
2167 void object_property_add_uint64_ptr(Object
*obj
, const char *name
,
2168 const uint64_t *v
, Error
**errp
)
2170 object_property_add(obj
, name
, "uint64", property_get_uint64_ptr
,
2171 NULL
, NULL
, (void *)v
, errp
);
2174 void object_class_property_add_uint64_ptr(ObjectClass
*klass
, const char *name
,
2175 const uint64_t *v
, Error
**errp
)
2177 object_class_property_add(klass
, name
, "uint64", property_get_uint64_ptr
,
2178 NULL
, NULL
, (void *)v
, errp
);
2186 static void property_get_alias(Object
*obj
, Visitor
*v
, const char *name
,
2187 void *opaque
, Error
**errp
)
2189 AliasProperty
*prop
= opaque
;
2191 object_property_get(prop
->target_obj
, v
, prop
->target_name
, errp
);
2194 static void property_set_alias(Object
*obj
, Visitor
*v
, const char *name
,
2195 void *opaque
, Error
**errp
)
2197 AliasProperty
*prop
= opaque
;
2199 object_property_set(prop
->target_obj
, v
, prop
->target_name
, errp
);
2202 static Object
*property_resolve_alias(Object
*obj
, void *opaque
,
2205 AliasProperty
*prop
= opaque
;
2207 return object_resolve_path_component(prop
->target_obj
, prop
->target_name
);
2210 static void property_release_alias(Object
*obj
, const char *name
, void *opaque
)
2212 AliasProperty
*prop
= opaque
;
2214 g_free(prop
->target_name
);
2218 void object_property_add_alias(Object
*obj
, const char *name
,
2219 Object
*target_obj
, const char *target_name
,
2222 AliasProperty
*prop
;
2224 ObjectProperty
*target_prop
;
2226 Error
*local_err
= NULL
;
2228 target_prop
= object_property_find(target_obj
, target_name
, errp
);
2233 if (object_property_is_child(target_prop
)) {
2234 prop_type
= g_strdup_printf("link%s",
2235 target_prop
->type
+ strlen("child"));
2237 prop_type
= g_strdup(target_prop
->type
);
2240 prop
= g_malloc(sizeof(*prop
));
2241 prop
->target_obj
= target_obj
;
2242 prop
->target_name
= g_strdup(target_name
);
2244 op
= object_property_add(obj
, name
, prop_type
,
2247 property_release_alias
,
2250 error_propagate(errp
, local_err
);
2254 op
->resolve
= property_resolve_alias
;
2256 object_property_set_description(obj
, op
->name
,
2257 target_prop
->description
,
2264 void object_property_set_description(Object
*obj
, const char *name
,
2265 const char *description
, Error
**errp
)
2269 op
= object_property_find(obj
, name
, errp
);
2274 g_free(op
->description
);
2275 op
->description
= g_strdup(description
);
2278 void object_class_property_set_description(ObjectClass
*klass
,
2280 const char *description
,
2285 op
= g_hash_table_lookup(klass
->properties
, name
);
2287 error_setg(errp
, "Property '.%s' not found", name
);
2291 g_free(op
->description
);
2292 op
->description
= g_strdup(description
);
2295 static void object_instance_init(Object
*obj
)
2297 object_property_add_str(obj
, "type", qdev_get_type
, NULL
, NULL
);
2300 static void register_types(void)
2302 static TypeInfo interface_info
= {
2303 .name
= TYPE_INTERFACE
,
2304 .class_size
= sizeof(InterfaceClass
),
2308 static TypeInfo object_info
= {
2309 .name
= TYPE_OBJECT
,
2310 .instance_size
= sizeof(Object
),
2311 .instance_init
= object_instance_init
,
2315 type_interface
= type_register_internal(&interface_info
);
2316 type_register_internal(&object_info
);
2319 type_init(register_types
)