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/object.h"
14 #include "qemu-common.h"
15 #include "qapi/qapi-visit-core.h"
16 #include "qapi/string-input-visitor.h"
17 #include "qapi/string-output-visitor.h"
19 /* TODO: replace QObject with a simpler visitor to avoid a dependency
20 * of the QOM core on QObject? */
21 #include "qemu/qom-qobject.h"
27 #define MAX_INTERFACES 32
29 typedef struct InterfaceImpl InterfaceImpl
;
30 typedef struct TypeImpl TypeImpl
;
45 void (*class_init
)(ObjectClass
*klass
, void *data
);
46 void (*class_base_init
)(ObjectClass
*klass
, void *data
);
47 void (*class_finalize
)(ObjectClass
*klass
, void *data
);
51 void (*instance_init
)(Object
*obj
);
52 void (*instance_finalize
)(Object
*obj
);
57 TypeImpl
*parent_type
;
62 InterfaceImpl interfaces
[MAX_INTERFACES
];
65 static Type type_interface
;
67 static GHashTable
*type_table_get(void)
69 static GHashTable
*type_table
;
71 if (type_table
== NULL
) {
72 type_table
= g_hash_table_new(g_str_hash
, g_str_equal
);
78 static void type_table_add(TypeImpl
*ti
)
80 g_hash_table_insert(type_table_get(), (void *)ti
->name
, ti
);
83 static TypeImpl
*type_table_lookup(const char *name
)
85 return g_hash_table_lookup(type_table_get(), name
);
88 static TypeImpl
*type_register_internal(const TypeInfo
*info
)
90 TypeImpl
*ti
= g_malloc0(sizeof(*ti
));
93 g_assert(info
->name
!= NULL
);
95 if (type_table_lookup(info
->name
) != NULL
) {
96 fprintf(stderr
, "Registering `%s' which already exists\n", info
->name
);
100 ti
->name
= g_strdup(info
->name
);
101 ti
->parent
= g_strdup(info
->parent
);
103 ti
->class_size
= info
->class_size
;
104 ti
->instance_size
= info
->instance_size
;
106 ti
->class_init
= info
->class_init
;
107 ti
->class_base_init
= info
->class_base_init
;
108 ti
->class_finalize
= info
->class_finalize
;
109 ti
->class_data
= info
->class_data
;
111 ti
->instance_init
= info
->instance_init
;
112 ti
->instance_finalize
= info
->instance_finalize
;
114 ti
->abstract
= info
->abstract
;
116 for (i
= 0; info
->interfaces
&& info
->interfaces
[i
].type
; i
++) {
117 ti
->interfaces
[i
].typename
= g_strdup(info
->interfaces
[i
].type
);
119 ti
->num_interfaces
= i
;
126 TypeImpl
*type_register(const TypeInfo
*info
)
128 assert(info
->parent
);
129 return type_register_internal(info
);
132 TypeImpl
*type_register_static(const TypeInfo
*info
)
134 return type_register(info
);
137 static TypeImpl
*type_get_by_name(const char *name
)
143 return type_table_lookup(name
);
146 static TypeImpl
*type_get_parent(TypeImpl
*type
)
148 if (!type
->parent_type
&& type
->parent
) {
149 type
->parent_type
= type_get_by_name(type
->parent
);
150 g_assert(type
->parent_type
!= NULL
);
153 return type
->parent_type
;
156 static bool type_has_parent(TypeImpl
*type
)
158 return (type
->parent
!= NULL
);
161 static size_t type_class_get_size(TypeImpl
*ti
)
163 if (ti
->class_size
) {
164 return ti
->class_size
;
167 if (type_has_parent(ti
)) {
168 return type_class_get_size(type_get_parent(ti
));
171 return sizeof(ObjectClass
);
174 static size_t type_object_get_size(TypeImpl
*ti
)
176 if (ti
->instance_size
) {
177 return ti
->instance_size
;
180 if (type_has_parent(ti
)) {
181 return type_object_get_size(type_get_parent(ti
));
187 static bool type_is_ancestor(TypeImpl
*type
, TypeImpl
*target_type
)
191 /* Check if typename is a direct ancestor of type */
193 if (type
== target_type
) {
197 type
= type_get_parent(type
);
203 static void type_initialize(TypeImpl
*ti
);
205 static void type_initialize_interface(TypeImpl
*ti
, const char *parent
)
207 InterfaceClass
*new_iface
;
209 TypeImpl
*iface_impl
;
211 info
.parent
= parent
;
212 info
.name
= g_strdup_printf("%s::%s", ti
->name
, info
.parent
);
213 info
.abstract
= true;
215 iface_impl
= type_register(&info
);
216 type_initialize(iface_impl
);
217 g_free((char *)info
.name
);
219 new_iface
= (InterfaceClass
*)iface_impl
->class;
220 new_iface
->concrete_class
= ti
->class;
222 ti
->class->interfaces
= g_slist_append(ti
->class->interfaces
,
226 static void type_initialize(TypeImpl
*ti
)
234 ti
->class_size
= type_class_get_size(ti
);
235 ti
->instance_size
= type_object_get_size(ti
);
237 ti
->class = g_malloc0(ti
->class_size
);
239 parent
= type_get_parent(ti
);
241 type_initialize(parent
);
245 g_assert(parent
->class_size
<= ti
->class_size
);
246 memcpy(ti
->class, parent
->class, parent
->class_size
);
248 for (e
= parent
->class->interfaces
; e
; e
= e
->next
) {
249 ObjectClass
*iface
= e
->data
;
250 type_initialize_interface(ti
, object_class_get_name(iface
));
253 for (i
= 0; i
< ti
->num_interfaces
; i
++) {
254 TypeImpl
*t
= type_get_by_name(ti
->interfaces
[i
].typename
);
255 for (e
= ti
->class->interfaces
; e
; e
= e
->next
) {
256 TypeImpl
*target_type
= OBJECT_CLASS(e
->data
)->type
;
258 if (type_is_ancestor(target_type
, t
)) {
267 type_initialize_interface(ti
, ti
->interfaces
[i
].typename
);
271 ti
->class->type
= ti
;
274 if (parent
->class_base_init
) {
275 parent
->class_base_init(ti
->class, ti
->class_data
);
277 parent
= type_get_parent(parent
);
280 if (ti
->class_init
) {
281 ti
->class_init(ti
->class, ti
->class_data
);
287 static void object_init_with_type(Object
*obj
, TypeImpl
*ti
)
289 if (type_has_parent(ti
)) {
290 object_init_with_type(obj
, type_get_parent(ti
));
293 if (ti
->instance_init
) {
294 ti
->instance_init(obj
);
298 void object_initialize_with_type(void *data
, TypeImpl
*type
)
302 g_assert(type
!= NULL
);
303 type_initialize(type
);
305 g_assert(type
->instance_size
>= sizeof(Object
));
306 g_assert(type
->abstract
== false);
308 memset(obj
, 0, type
->instance_size
);
309 obj
->class = type
->class;
311 QTAILQ_INIT(&obj
->properties
);
312 object_init_with_type(obj
, type
);
315 void object_initialize(void *data
, const char *typename
)
317 TypeImpl
*type
= type_get_by_name(typename
);
319 object_initialize_with_type(data
, type
);
322 static inline bool object_property_is_child(ObjectProperty
*prop
)
324 return strstart(prop
->type
, "child<", NULL
);
327 static inline bool object_property_is_link(ObjectProperty
*prop
)
329 return strstart(prop
->type
, "link<", NULL
);
332 static void object_property_del_all(Object
*obj
)
334 while (!QTAILQ_EMPTY(&obj
->properties
)) {
335 ObjectProperty
*prop
= QTAILQ_FIRST(&obj
->properties
);
337 QTAILQ_REMOVE(&obj
->properties
, prop
, node
);
340 prop
->release(obj
, prop
->name
, prop
->opaque
);
349 static void object_property_del_child(Object
*obj
, Object
*child
, Error
**errp
)
351 ObjectProperty
*prop
;
353 QTAILQ_FOREACH(prop
, &obj
->properties
, node
) {
354 if (object_property_is_child(prop
) && prop
->opaque
== child
) {
355 object_property_del(obj
, prop
->name
, errp
);
361 void object_unparent(Object
*obj
)
364 object_property_del_child(obj
->parent
, obj
, NULL
);
366 if (obj
->class->unparent
) {
367 (obj
->class->unparent
)(obj
);
371 static void object_deinit(Object
*obj
, TypeImpl
*type
)
373 if (type
->instance_finalize
) {
374 type
->instance_finalize(obj
);
377 if (type_has_parent(type
)) {
378 object_deinit(obj
, type_get_parent(type
));
382 void object_finalize(void *data
)
385 TypeImpl
*ti
= obj
->class->type
;
387 object_deinit(obj
, ti
);
388 object_property_del_all(obj
);
390 g_assert(obj
->ref
== 0);
393 Object
*object_new_with_type(Type type
)
397 g_assert(type
!= NULL
);
398 type_initialize(type
);
400 obj
= g_malloc(type
->instance_size
);
401 object_initialize_with_type(obj
, type
);
406 Object
*object_new(const char *typename
)
408 TypeImpl
*ti
= type_get_by_name(typename
);
410 return object_new_with_type(ti
);
413 void object_delete(Object
*obj
)
415 object_unparent(obj
);
416 g_assert(obj
->ref
== 1);
421 Object
*object_dynamic_cast(Object
*obj
, const char *typename
)
423 if (obj
&& object_class_dynamic_cast(object_get_class(obj
), typename
)) {
430 Object
*object_dynamic_cast_assert(Object
*obj
, const char *typename
)
434 inst
= object_dynamic_cast(obj
, typename
);
437 fprintf(stderr
, "Object %p is not an instance of type %s\n",
445 ObjectClass
*object_class_dynamic_cast(ObjectClass
*class,
446 const char *typename
)
448 TypeImpl
*target_type
= type_get_by_name(typename
);
449 TypeImpl
*type
= class->type
;
450 ObjectClass
*ret
= NULL
;
452 if (type
->num_interfaces
&& type_is_ancestor(target_type
, type_interface
)) {
456 for (i
= class->interfaces
; i
; i
= i
->next
) {
457 ObjectClass
*target_class
= i
->data
;
459 if (type_is_ancestor(target_class
->type
, target_type
)) {
465 /* The match was ambiguous, don't allow a cast */
469 } else if (type_is_ancestor(type
, target_type
)) {
476 ObjectClass
*object_class_dynamic_cast_assert(ObjectClass
*class,
477 const char *typename
)
479 ObjectClass
*ret
= object_class_dynamic_cast(class, typename
);
482 fprintf(stderr
, "Object %p is not an instance of type %s\n",
490 const char *object_get_typename(Object
*obj
)
492 return obj
->class->type
->name
;
495 ObjectClass
*object_get_class(Object
*obj
)
500 const char *object_class_get_name(ObjectClass
*klass
)
502 return klass
->type
->name
;
505 ObjectClass
*object_class_by_name(const char *typename
)
507 TypeImpl
*type
= type_get_by_name(typename
);
513 type_initialize(type
);
518 ObjectClass
*object_class_get_parent(ObjectClass
*class)
520 TypeImpl
*type
= type_get_parent(class->type
);
526 type_initialize(type
);
531 typedef struct OCFData
533 void (*fn
)(ObjectClass
*klass
, void *opaque
);
534 const char *implements_type
;
535 bool include_abstract
;
539 static void object_class_foreach_tramp(gpointer key
, gpointer value
,
542 OCFData
*data
= opaque
;
543 TypeImpl
*type
= value
;
546 type_initialize(type
);
549 if (!data
->include_abstract
&& type
->abstract
) {
553 if (data
->implements_type
&&
554 !object_class_dynamic_cast(k
, data
->implements_type
)) {
558 data
->fn(k
, data
->opaque
);
561 void object_class_foreach(void (*fn
)(ObjectClass
*klass
, void *opaque
),
562 const char *implements_type
, bool include_abstract
,
565 OCFData data
= { fn
, implements_type
, include_abstract
, opaque
};
567 g_hash_table_foreach(type_table_get(), object_class_foreach_tramp
, &data
);
570 int object_child_foreach(Object
*obj
, int (*fn
)(Object
*child
, void *opaque
),
573 ObjectProperty
*prop
;
576 QTAILQ_FOREACH(prop
, &obj
->properties
, node
) {
577 if (object_property_is_child(prop
)) {
578 ret
= fn(prop
->opaque
, opaque
);
587 static void object_class_get_list_tramp(ObjectClass
*klass
, void *opaque
)
589 GSList
**list
= opaque
;
591 *list
= g_slist_prepend(*list
, klass
);
594 GSList
*object_class_get_list(const char *implements_type
,
595 bool include_abstract
)
599 object_class_foreach(object_class_get_list_tramp
,
600 implements_type
, include_abstract
, &list
);
604 void object_ref(Object
*obj
)
609 void object_unref(Object
*obj
)
611 g_assert(obj
->ref
> 0);
614 /* parent always holds a reference to its children */
616 object_finalize(obj
);
620 void object_property_add(Object
*obj
, const char *name
, const char *type
,
621 ObjectPropertyAccessor
*get
,
622 ObjectPropertyAccessor
*set
,
623 ObjectPropertyRelease
*release
,
624 void *opaque
, Error
**errp
)
626 ObjectProperty
*prop
= g_malloc0(sizeof(*prop
));
628 prop
->name
= g_strdup(name
);
629 prop
->type
= g_strdup(type
);
633 prop
->release
= release
;
634 prop
->opaque
= opaque
;
636 QTAILQ_INSERT_TAIL(&obj
->properties
, prop
, node
);
639 ObjectProperty
*object_property_find(Object
*obj
, const char *name
,
642 ObjectProperty
*prop
;
644 QTAILQ_FOREACH(prop
, &obj
->properties
, node
) {
645 if (strcmp(prop
->name
, name
) == 0) {
650 error_set(errp
, QERR_PROPERTY_NOT_FOUND
, "", name
);
654 void object_property_del(Object
*obj
, const char *name
, Error
**errp
)
656 ObjectProperty
*prop
= object_property_find(obj
, name
, errp
);
662 prop
->release(obj
, name
, prop
->opaque
);
665 QTAILQ_REMOVE(&obj
->properties
, prop
, node
);
672 void object_property_get(Object
*obj
, Visitor
*v
, const char *name
,
675 ObjectProperty
*prop
= object_property_find(obj
, name
, errp
);
681 error_set(errp
, QERR_PERMISSION_DENIED
);
683 prop
->get(obj
, v
, prop
->opaque
, name
, errp
);
687 void object_property_set(Object
*obj
, Visitor
*v
, const char *name
,
690 ObjectProperty
*prop
= object_property_find(obj
, name
, errp
);
696 error_set(errp
, QERR_PERMISSION_DENIED
);
698 prop
->set(obj
, v
, prop
->opaque
, name
, errp
);
702 void object_property_set_str(Object
*obj
, const char *value
,
703 const char *name
, Error
**errp
)
705 QString
*qstr
= qstring_from_str(value
);
706 object_property_set_qobject(obj
, QOBJECT(qstr
), name
, errp
);
711 char *object_property_get_str(Object
*obj
, const char *name
,
714 QObject
*ret
= object_property_get_qobject(obj
, name
, errp
);
721 qstring
= qobject_to_qstring(ret
);
723 error_set(errp
, QERR_INVALID_PARAMETER_TYPE
, name
, "string");
726 retval
= g_strdup(qstring_get_str(qstring
));
733 void object_property_set_link(Object
*obj
, Object
*value
,
734 const char *name
, Error
**errp
)
736 object_property_set_str(obj
, object_get_canonical_path(value
),
740 Object
*object_property_get_link(Object
*obj
, const char *name
,
743 char *str
= object_property_get_str(obj
, name
, errp
);
744 Object
*target
= NULL
;
747 target
= object_resolve_path(str
, NULL
);
749 error_set(errp
, QERR_DEVICE_NOT_FOUND
, str
);
757 void object_property_set_bool(Object
*obj
, bool value
,
758 const char *name
, Error
**errp
)
760 QBool
*qbool
= qbool_from_int(value
);
761 object_property_set_qobject(obj
, QOBJECT(qbool
), name
, errp
);
766 bool object_property_get_bool(Object
*obj
, const char *name
,
769 QObject
*ret
= object_property_get_qobject(obj
, name
, errp
);
776 qbool
= qobject_to_qbool(ret
);
778 error_set(errp
, QERR_INVALID_PARAMETER_TYPE
, name
, "boolean");
781 retval
= qbool_get_int(qbool
);
788 void object_property_set_int(Object
*obj
, int64_t value
,
789 const char *name
, Error
**errp
)
791 QInt
*qint
= qint_from_int(value
);
792 object_property_set_qobject(obj
, QOBJECT(qint
), name
, errp
);
797 int64_t object_property_get_int(Object
*obj
, const char *name
,
800 QObject
*ret
= object_property_get_qobject(obj
, name
, errp
);
807 qint
= qobject_to_qint(ret
);
809 error_set(errp
, QERR_INVALID_PARAMETER_TYPE
, name
, "int");
812 retval
= qint_get_int(qint
);
819 void object_property_parse(Object
*obj
, const char *string
,
820 const char *name
, Error
**errp
)
822 StringInputVisitor
*mi
;
823 mi
= string_input_visitor_new(string
);
824 object_property_set(obj
, string_input_get_visitor(mi
), name
, errp
);
826 string_input_visitor_cleanup(mi
);
829 char *object_property_print(Object
*obj
, const char *name
,
832 StringOutputVisitor
*mo
;
835 mo
= string_output_visitor_new();
836 object_property_get(obj
, string_output_get_visitor(mo
), name
, errp
);
837 string
= string_output_get_string(mo
);
838 string_output_visitor_cleanup(mo
);
842 const char *object_property_get_type(Object
*obj
, const char *name
, Error
**errp
)
844 ObjectProperty
*prop
= object_property_find(obj
, name
, errp
);
852 Object
*object_get_root(void)
857 root
= object_new("container");
863 static void object_get_child_property(Object
*obj
, Visitor
*v
, void *opaque
,
864 const char *name
, Error
**errp
)
866 Object
*child
= opaque
;
869 path
= object_get_canonical_path(child
);
870 visit_type_str(v
, &path
, name
, errp
);
874 static void object_finalize_child_property(Object
*obj
, const char *name
,
877 Object
*child
= opaque
;
882 void object_property_add_child(Object
*obj
, const char *name
,
883 Object
*child
, Error
**errp
)
887 type
= g_strdup_printf("child<%s>", object_get_typename(OBJECT(child
)));
889 object_property_add(obj
, name
, type
, object_get_child_property
,
890 NULL
, object_finalize_child_property
, child
, errp
);
893 g_assert(child
->parent
== NULL
);
899 static void object_get_link_property(Object
*obj
, Visitor
*v
, void *opaque
,
900 const char *name
, Error
**errp
)
902 Object
**child
= opaque
;
906 path
= object_get_canonical_path(*child
);
907 visit_type_str(v
, &path
, name
, errp
);
911 visit_type_str(v
, &path
, name
, errp
);
915 static void object_set_link_property(Object
*obj
, Visitor
*v
, void *opaque
,
916 const char *name
, Error
**errp
)
918 Object
**child
= opaque
;
920 bool ambiguous
= false;
925 type
= object_property_get_type(obj
, name
, NULL
);
927 visit_type_str(v
, &path
, name
, errp
);
932 if (strcmp(path
, "") != 0) {
935 /* Go from link<FOO> to FOO. */
936 target_type
= g_strndup(&type
[5], strlen(type
) - 6);
937 target
= object_resolve_path_type(path
, target_type
, &ambiguous
);
940 error_set(errp
, QERR_AMBIGUOUS_PATH
, path
);
945 target
= object_resolve_path(path
, &ambiguous
);
946 if (target
|| ambiguous
) {
947 error_set(errp
, QERR_INVALID_PARAMETER_TYPE
, name
, target_type
);
949 error_set(errp
, QERR_DEVICE_NOT_FOUND
, path
);
957 if (old_target
!= NULL
) {
958 object_unref(old_target
);
962 void object_property_add_link(Object
*obj
, const char *name
,
963 const char *type
, Object
**child
,
968 full_type
= g_strdup_printf("link<%s>", type
);
970 object_property_add(obj
, name
, full_type
,
971 object_get_link_property
,
972 object_set_link_property
,
978 gchar
*object_get_canonical_path(Object
*obj
)
980 Object
*root
= object_get_root();
981 char *newpath
= NULL
, *path
= NULL
;
983 while (obj
!= root
) {
984 ObjectProperty
*prop
= NULL
;
986 g_assert(obj
->parent
!= NULL
);
988 QTAILQ_FOREACH(prop
, &obj
->parent
->properties
, node
) {
989 if (!object_property_is_child(prop
)) {
993 if (prop
->opaque
== obj
) {
995 newpath
= g_strdup_printf("%s/%s", prop
->name
, path
);
999 path
= g_strdup(prop
->name
);
1005 g_assert(prop
!= NULL
);
1010 newpath
= g_strdup_printf("/%s", path
);
1016 Object
*object_resolve_path_component(Object
*parent
, gchar
*part
)
1018 ObjectProperty
*prop
= object_property_find(parent
, part
, NULL
);
1023 if (object_property_is_link(prop
)) {
1024 return *(Object
**)prop
->opaque
;
1025 } else if (object_property_is_child(prop
)) {
1026 return prop
->opaque
;
1032 static Object
*object_resolve_abs_path(Object
*parent
,
1034 const char *typename
,
1039 if (parts
[index
] == NULL
) {
1040 return object_dynamic_cast(parent
, typename
);
1043 if (strcmp(parts
[index
], "") == 0) {
1044 return object_resolve_abs_path(parent
, parts
, typename
, index
+ 1);
1047 child
= object_resolve_path_component(parent
, parts
[index
]);
1052 return object_resolve_abs_path(child
, parts
, typename
, index
+ 1);
1055 static Object
*object_resolve_partial_path(Object
*parent
,
1057 const char *typename
,
1061 ObjectProperty
*prop
;
1063 obj
= object_resolve_abs_path(parent
, parts
, typename
, 0);
1065 QTAILQ_FOREACH(prop
, &parent
->properties
, node
) {
1068 if (!object_property_is_child(prop
)) {
1072 found
= object_resolve_partial_path(prop
->opaque
, parts
,
1073 typename
, ambiguous
);
1084 if (ambiguous
&& *ambiguous
) {
1092 Object
*object_resolve_path_type(const char *path
, const char *typename
,
1095 bool partial_path
= true;
1099 parts
= g_strsplit(path
, "/", 0);
1100 if (parts
== NULL
|| parts
[0] == NULL
) {
1102 return object_get_root();
1105 if (strcmp(parts
[0], "") == 0) {
1106 partial_path
= false;
1113 obj
= object_resolve_partial_path(object_get_root(), parts
,
1114 typename
, ambiguous
);
1116 obj
= object_resolve_abs_path(object_get_root(), parts
, typename
, 1);
1124 Object
*object_resolve_path(const char *path
, bool *ambiguous
)
1126 return object_resolve_path_type(path
, TYPE_OBJECT
, ambiguous
);
1129 typedef struct StringProperty
1131 char *(*get
)(Object
*, Error
**);
1132 void (*set
)(Object
*, const char *, Error
**);
1135 static void property_get_str(Object
*obj
, Visitor
*v
, void *opaque
,
1136 const char *name
, Error
**errp
)
1138 StringProperty
*prop
= opaque
;
1141 value
= prop
->get(obj
, errp
);
1143 visit_type_str(v
, &value
, name
, errp
);
1148 static void property_set_str(Object
*obj
, Visitor
*v
, void *opaque
,
1149 const char *name
, Error
**errp
)
1151 StringProperty
*prop
= opaque
;
1153 Error
*local_err
= NULL
;
1155 visit_type_str(v
, &value
, name
, &local_err
);
1157 error_propagate(errp
, local_err
);
1161 prop
->set(obj
, value
, errp
);
1165 static void property_release_str(Object
*obj
, const char *name
,
1168 StringProperty
*prop
= opaque
;
1172 void object_property_add_str(Object
*obj
, const char *name
,
1173 char *(*get
)(Object
*, Error
**),
1174 void (*set
)(Object
*, const char *, Error
**),
1177 StringProperty
*prop
= g_malloc0(sizeof(*prop
));
1182 object_property_add(obj
, name
, "string",
1183 get
? property_get_str
: NULL
,
1184 set
? property_set_str
: NULL
,
1185 property_release_str
,
1189 typedef struct BoolProperty
1191 bool (*get
)(Object
*, Error
**);
1192 void (*set
)(Object
*, bool, Error
**);
1195 static void property_get_bool(Object
*obj
, Visitor
*v
, void *opaque
,
1196 const char *name
, Error
**errp
)
1198 BoolProperty
*prop
= opaque
;
1201 value
= prop
->get(obj
, errp
);
1202 visit_type_bool(v
, &value
, name
, errp
);
1205 static void property_set_bool(Object
*obj
, Visitor
*v
, void *opaque
,
1206 const char *name
, Error
**errp
)
1208 BoolProperty
*prop
= opaque
;
1210 Error
*local_err
= NULL
;
1212 visit_type_bool(v
, &value
, name
, &local_err
);
1214 error_propagate(errp
, local_err
);
1218 prop
->set(obj
, value
, errp
);
1221 static void property_release_bool(Object
*obj
, const char *name
,
1224 BoolProperty
*prop
= opaque
;
1228 void object_property_add_bool(Object
*obj
, const char *name
,
1229 bool (*get
)(Object
*, Error
**),
1230 void (*set
)(Object
*, bool, Error
**),
1233 BoolProperty
*prop
= g_malloc0(sizeof(*prop
));
1238 object_property_add(obj
, name
, "bool",
1239 get
? property_get_bool
: NULL
,
1240 set
? property_set_bool
: NULL
,
1241 property_release_bool
,
1245 static char *qdev_get_type(Object
*obj
, Error
**errp
)
1247 return g_strdup(object_get_typename(obj
));
1250 static void object_instance_init(Object
*obj
)
1252 object_property_add_str(obj
, "type", qdev_get_type
, NULL
, NULL
);
1255 static void register_types(void)
1257 static TypeInfo interface_info
= {
1258 .name
= TYPE_INTERFACE
,
1259 .class_size
= sizeof(InterfaceClass
),
1263 static TypeInfo object_info
= {
1264 .name
= TYPE_OBJECT
,
1265 .instance_size
= sizeof(Object
),
1266 .instance_init
= object_instance_init
,
1270 type_interface
= type_register_internal(&interface_info
);
1271 type_register_internal(&object_info
);
1274 type_init(register_types
)