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 "hw/qdev-core.h"
15 #include "qapi/error.h"
16 #include "qom/object.h"
17 #include "qom/object_interfaces.h"
18 #include "qemu/cutils.h"
19 #include "qapi/visitor.h"
20 #include "qapi/string-input-visitor.h"
21 #include "qapi/string-output-visitor.h"
22 #include "qapi/qapi-builtin-visit.h"
23 #include "qapi/qmp/qerror.h"
26 /* TODO: replace QObject with a simpler visitor to avoid a dependency
27 * of the QOM core on QObject? */
28 #include "qom/qom-qobject.h"
29 #include "qapi/qmp/qbool.h"
30 #include "qapi/qmp/qnum.h"
31 #include "qapi/qmp/qstring.h"
32 #include "qemu/error-report.h"
34 #define MAX_INTERFACES 32
36 typedef struct InterfaceImpl InterfaceImpl
;
37 typedef struct TypeImpl TypeImpl
;
52 void (*class_init
)(ObjectClass
*klass
, void *data
);
53 void (*class_base_init
)(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_data
= info
->class_data
;
120 ti
->instance_init
= info
->instance_init
;
121 ti
->instance_post_init
= info
->instance_post_init
;
122 ti
->instance_finalize
= info
->instance_finalize
;
124 ti
->abstract
= info
->abstract
;
126 for (i
= 0; info
->interfaces
&& info
->interfaces
[i
].type
; i
++) {
127 ti
->interfaces
[i
].typename
= g_strdup(info
->interfaces
[i
].type
);
129 ti
->num_interfaces
= i
;
134 static TypeImpl
*type_register_internal(const TypeInfo
*info
)
143 TypeImpl
*type_register(const TypeInfo
*info
)
145 assert(info
->parent
);
146 return type_register_internal(info
);
149 TypeImpl
*type_register_static(const TypeInfo
*info
)
151 return type_register(info
);
154 void type_register_static_array(const TypeInfo
*infos
, int nr_infos
)
158 for (i
= 0; i
< nr_infos
; i
++) {
159 type_register_static(&infos
[i
]);
163 static TypeImpl
*type_get_by_name(const char *name
)
169 return type_table_lookup(name
);
172 static TypeImpl
*type_get_parent(TypeImpl
*type
)
174 if (!type
->parent_type
&& type
->parent
) {
175 type
->parent_type
= type_get_by_name(type
->parent
);
176 if (!type
->parent_type
) {
177 fprintf(stderr
, "Type '%s' is missing its parent '%s'\n",
178 type
->name
, type
->parent
);
183 return type
->parent_type
;
186 static bool type_has_parent(TypeImpl
*type
)
188 return (type
->parent
!= NULL
);
191 static size_t type_class_get_size(TypeImpl
*ti
)
193 if (ti
->class_size
) {
194 return ti
->class_size
;
197 if (type_has_parent(ti
)) {
198 return type_class_get_size(type_get_parent(ti
));
201 return sizeof(ObjectClass
);
204 static size_t type_object_get_size(TypeImpl
*ti
)
206 if (ti
->instance_size
) {
207 return ti
->instance_size
;
210 if (type_has_parent(ti
)) {
211 return type_object_get_size(type_get_parent(ti
));
217 size_t object_type_get_instance_size(const char *typename
)
219 TypeImpl
*type
= type_get_by_name(typename
);
221 g_assert(type
!= NULL
);
222 return type_object_get_size(type
);
225 static bool type_is_ancestor(TypeImpl
*type
, TypeImpl
*target_type
)
229 /* Check if target_type is a direct ancestor of type */
231 if (type
== target_type
) {
235 type
= type_get_parent(type
);
241 static void type_initialize(TypeImpl
*ti
);
243 static void type_initialize_interface(TypeImpl
*ti
, TypeImpl
*interface_type
,
244 TypeImpl
*parent_type
)
246 InterfaceClass
*new_iface
;
248 TypeImpl
*iface_impl
;
250 info
.parent
= parent_type
->name
;
251 info
.name
= g_strdup_printf("%s::%s", ti
->name
, interface_type
->name
);
252 info
.abstract
= true;
254 iface_impl
= type_new(&info
);
255 iface_impl
->parent_type
= parent_type
;
256 type_initialize(iface_impl
);
257 g_free((char *)info
.name
);
259 new_iface
= (InterfaceClass
*)iface_impl
->class;
260 new_iface
->concrete_class
= ti
->class;
261 new_iface
->interface_type
= interface_type
;
263 ti
->class->interfaces
= g_slist_append(ti
->class->interfaces
,
267 static void object_property_free(gpointer data
)
269 ObjectProperty
*prop
= data
;
273 g_free(prop
->description
);
277 static void type_initialize(TypeImpl
*ti
)
285 ti
->class_size
= type_class_get_size(ti
);
286 ti
->instance_size
= type_object_get_size(ti
);
287 /* Any type with zero instance_size is implicitly abstract.
288 * This means interface types are all abstract.
290 if (ti
->instance_size
== 0) {
293 if (type_is_ancestor(ti
, type_interface
)) {
294 assert(ti
->instance_size
== 0);
295 assert(ti
->abstract
);
296 assert(!ti
->instance_init
);
297 assert(!ti
->instance_post_init
);
298 assert(!ti
->instance_finalize
);
299 assert(!ti
->num_interfaces
);
301 ti
->class = g_malloc0(ti
->class_size
);
303 parent
= type_get_parent(ti
);
305 type_initialize(parent
);
309 g_assert(parent
->class_size
<= ti
->class_size
);
310 g_assert(parent
->instance_size
<= ti
->instance_size
);
311 memcpy(ti
->class, parent
->class, parent
->class_size
);
312 ti
->class->interfaces
= NULL
;
313 ti
->class->properties
= g_hash_table_new_full(
314 g_str_hash
, g_str_equal
, g_free
, object_property_free
);
316 for (e
= parent
->class->interfaces
; e
; e
= e
->next
) {
317 InterfaceClass
*iface
= e
->data
;
318 ObjectClass
*klass
= OBJECT_CLASS(iface
);
320 type_initialize_interface(ti
, iface
->interface_type
, klass
->type
);
323 for (i
= 0; i
< ti
->num_interfaces
; i
++) {
324 TypeImpl
*t
= type_get_by_name(ti
->interfaces
[i
].typename
);
326 error_report("missing interface '%s' for object '%s'",
327 ti
->interfaces
[i
].typename
, parent
->name
);
330 for (e
= ti
->class->interfaces
; e
; e
= e
->next
) {
331 TypeImpl
*target_type
= OBJECT_CLASS(e
->data
)->type
;
333 if (type_is_ancestor(target_type
, t
)) {
342 type_initialize_interface(ti
, t
, t
);
345 ti
->class->properties
= g_hash_table_new_full(
346 g_str_hash
, g_str_equal
, g_free
, object_property_free
);
349 ti
->class->type
= ti
;
352 if (parent
->class_base_init
) {
353 parent
->class_base_init(ti
->class, ti
->class_data
);
355 parent
= type_get_parent(parent
);
358 if (ti
->class_init
) {
359 ti
->class_init(ti
->class, ti
->class_data
);
363 static void object_init_with_type(Object
*obj
, TypeImpl
*ti
)
365 if (type_has_parent(ti
)) {
366 object_init_with_type(obj
, type_get_parent(ti
));
369 if (ti
->instance_init
) {
370 ti
->instance_init(obj
);
374 static void object_post_init_with_type(Object
*obj
, TypeImpl
*ti
)
376 if (ti
->instance_post_init
) {
377 ti
->instance_post_init(obj
);
380 if (type_has_parent(ti
)) {
381 object_post_init_with_type(obj
, type_get_parent(ti
));
385 void object_apply_global_props(Object
*obj
, const GPtrArray
*props
, Error
**errp
)
393 for (i
= 0; i
< props
->len
; i
++) {
394 GlobalProperty
*p
= g_ptr_array_index(props
, i
);
397 if (object_dynamic_cast(obj
, p
->driver
) == NULL
) {
400 if (p
->optional
&& !object_property_find(obj
, p
->property
, NULL
)) {
404 object_property_parse(obj
, p
->value
, p
->property
, &err
);
406 error_prepend(&err
, "can't apply global %s.%s=%s: ",
407 p
->driver
, p
->property
, p
->value
);
409 * If errp != NULL, propagate error and return.
410 * If errp == NULL, report a warning, but keep going
411 * with the remaining globals.
414 error_propagate(errp
, err
);
417 warn_report_err(err
);
424 * Global property defaults
425 * Slot 0: accelerator's global property defaults
426 * Slot 1: machine's global property defaults
427 * Slot 2: global properties from legacy command line option
428 * Each is a GPtrArray of of GlobalProperty.
429 * Applied in order, later entries override earlier ones.
431 static GPtrArray
*object_compat_props
[3];
434 * Retrieve @GPtrArray for global property defined with options
435 * other than "-global". These are generally used for syntactic
436 * sugar and legacy command line options.
438 void object_register_sugar_prop(const char *driver
, const char *prop
, const char *value
)
441 if (!object_compat_props
[2]) {
442 object_compat_props
[2] = g_ptr_array_new();
444 g
= g_new0(GlobalProperty
, 1);
445 g
->driver
= g_strdup(driver
);
446 g
->property
= g_strdup(prop
);
447 g
->value
= g_strdup(value
);
448 g_ptr_array_add(object_compat_props
[2], g
);
452 * Set machine's global property defaults to @compat_props.
453 * May be called at most once.
455 void object_set_machine_compat_props(GPtrArray
*compat_props
)
457 assert(!object_compat_props
[1]);
458 object_compat_props
[1] = compat_props
;
462 * Set accelerator's global property defaults to @compat_props.
463 * May be called at most once.
465 void object_set_accelerator_compat_props(GPtrArray
*compat_props
)
467 assert(!object_compat_props
[0]);
468 object_compat_props
[0] = compat_props
;
471 void object_apply_compat_props(Object
*obj
)
475 for (i
= 0; i
< ARRAY_SIZE(object_compat_props
); i
++) {
476 object_apply_global_props(obj
, object_compat_props
[i
],
477 i
== 2 ? &error_fatal
: &error_abort
);
481 static void object_initialize_with_type(void *data
, size_t size
, TypeImpl
*type
)
485 type_initialize(type
);
487 g_assert(type
->instance_size
>= sizeof(Object
));
488 g_assert(type
->abstract
== false);
489 g_assert(size
>= type
->instance_size
);
491 memset(obj
, 0, type
->instance_size
);
492 obj
->class = type
->class;
494 obj
->properties
= g_hash_table_new_full(g_str_hash
, g_str_equal
,
495 NULL
, object_property_free
);
496 object_init_with_type(obj
, type
);
497 object_post_init_with_type(obj
, type
);
500 void object_initialize(void *data
, size_t size
, const char *typename
)
502 TypeImpl
*type
= type_get_by_name(typename
);
505 error_report("missing object type '%s'", typename
);
509 object_initialize_with_type(data
, size
, type
);
512 void object_initialize_child(Object
*parentobj
, const char *propname
,
513 void *childobj
, size_t size
, const char *type
,
518 va_start(vargs
, errp
);
519 object_initialize_childv(parentobj
, propname
, childobj
, size
, type
, errp
,
524 void object_initialize_childv(Object
*parentobj
, const char *propname
,
525 void *childobj
, size_t size
, const char *type
,
526 Error
**errp
, va_list vargs
)
528 Error
*local_err
= NULL
;
532 object_initialize(childobj
, size
, type
);
533 obj
= OBJECT(childobj
);
535 object_set_propv(obj
, &local_err
, vargs
);
540 object_property_add_child(parentobj
, propname
, obj
, &local_err
);
545 uc
= (UserCreatable
*)object_dynamic_cast(obj
, TYPE_USER_CREATABLE
);
547 user_creatable_complete(uc
, &local_err
);
549 object_unparent(obj
);
555 * Since object_property_add_child added a reference to the child object,
556 * we can drop the reference added by object_initialize(), so the child
557 * property will own the only reference to the object.
563 error_propagate(errp
, local_err
);
568 static inline bool object_property_is_child(ObjectProperty
*prop
)
570 return strstart(prop
->type
, "child<", NULL
);
573 static void object_property_del_all(Object
*obj
)
575 ObjectProperty
*prop
;
582 g_hash_table_iter_init(&iter
, obj
->properties
);
583 while (g_hash_table_iter_next(&iter
, &key
, &value
)) {
586 prop
->release(obj
, prop
->name
, prop
->opaque
);
587 prop
->release
= NULL
;
591 g_hash_table_iter_remove(&iter
);
595 g_hash_table_unref(obj
->properties
);
598 static void object_property_del_child(Object
*obj
, Object
*child
, Error
**errp
)
600 ObjectProperty
*prop
;
604 g_hash_table_iter_init(&iter
, obj
->properties
);
605 while (g_hash_table_iter_next(&iter
, &key
, &value
)) {
607 if (object_property_is_child(prop
) && prop
->opaque
== child
) {
609 prop
->release(obj
, prop
->name
, prop
->opaque
);
610 prop
->release
= NULL
;
615 g_hash_table_iter_init(&iter
, obj
->properties
);
616 while (g_hash_table_iter_next(&iter
, &key
, &value
)) {
618 if (object_property_is_child(prop
) && prop
->opaque
== child
) {
619 g_hash_table_iter_remove(&iter
);
625 void object_unparent(Object
*obj
)
628 object_property_del_child(obj
->parent
, obj
, NULL
);
632 static void object_deinit(Object
*obj
, TypeImpl
*type
)
634 if (type
->instance_finalize
) {
635 type
->instance_finalize(obj
);
638 if (type_has_parent(type
)) {
639 object_deinit(obj
, type_get_parent(type
));
643 static void object_finalize(void *data
)
646 TypeImpl
*ti
= obj
->class->type
;
648 object_property_del_all(obj
);
649 object_deinit(obj
, ti
);
651 g_assert(obj
->ref
== 0);
657 static Object
*object_new_with_type(Type type
)
661 g_assert(type
!= NULL
);
662 type_initialize(type
);
664 obj
= g_malloc(type
->instance_size
);
665 object_initialize_with_type(obj
, type
->instance_size
, type
);
671 Object
*object_new_with_class(ObjectClass
*klass
)
673 return object_new_with_type(klass
->type
);
676 Object
*object_new(const char *typename
)
678 TypeImpl
*ti
= type_get_by_name(typename
);
680 return object_new_with_type(ti
);
684 Object
*object_new_with_props(const char *typename
,
693 va_start(vargs
, errp
);
694 obj
= object_new_with_propv(typename
, parent
, id
, errp
, vargs
);
701 Object
*object_new_with_propv(const char *typename
,
709 Error
*local_err
= NULL
;
712 klass
= object_class_by_name(typename
);
714 error_setg(errp
, "invalid object type: %s", typename
);
718 if (object_class_is_abstract(klass
)) {
719 error_setg(errp
, "object type '%s' is abstract", typename
);
722 obj
= object_new_with_type(klass
->type
);
724 if (object_set_propv(obj
, &local_err
, vargs
) < 0) {
729 object_property_add_child(parent
, id
, obj
, &local_err
);
735 uc
= (UserCreatable
*)object_dynamic_cast(obj
, TYPE_USER_CREATABLE
);
737 user_creatable_complete(uc
, &local_err
);
740 object_unparent(obj
);
746 object_unref(OBJECT(obj
));
750 error_propagate(errp
, local_err
);
756 int object_set_props(Object
*obj
,
763 va_start(vargs
, errp
);
764 ret
= object_set_propv(obj
, errp
, vargs
);
771 int object_set_propv(Object
*obj
,
775 const char *propname
;
776 Error
*local_err
= NULL
;
778 propname
= va_arg(vargs
, char *);
779 while (propname
!= NULL
) {
780 const char *value
= va_arg(vargs
, char *);
782 g_assert(value
!= NULL
);
783 object_property_parse(obj
, value
, propname
, &local_err
);
785 error_propagate(errp
, local_err
);
788 propname
= va_arg(vargs
, char *);
795 Object
*object_dynamic_cast(Object
*obj
, const char *typename
)
797 if (obj
&& object_class_dynamic_cast(object_get_class(obj
), typename
)) {
804 Object
*object_dynamic_cast_assert(Object
*obj
, const char *typename
,
805 const char *file
, int line
, const char *func
)
807 trace_object_dynamic_cast_assert(obj
? obj
->class->type
->name
: "(null)",
808 typename
, file
, line
, func
);
810 #ifdef CONFIG_QOM_CAST_DEBUG
814 for (i
= 0; obj
&& i
< OBJECT_CLASS_CAST_CACHE
; i
++) {
815 if (atomic_read(&obj
->class->object_cast_cache
[i
]) == typename
) {
820 inst
= object_dynamic_cast(obj
, typename
);
823 fprintf(stderr
, "%s:%d:%s: Object %p is not an instance of type %s\n",
824 file
, line
, func
, obj
, typename
);
830 if (obj
&& obj
== inst
) {
831 for (i
= 1; i
< OBJECT_CLASS_CAST_CACHE
; i
++) {
832 atomic_set(&obj
->class->object_cast_cache
[i
- 1],
833 atomic_read(&obj
->class->object_cast_cache
[i
]));
835 atomic_set(&obj
->class->object_cast_cache
[i
- 1], typename
);
843 ObjectClass
*object_class_dynamic_cast(ObjectClass
*class,
844 const char *typename
)
846 ObjectClass
*ret
= NULL
;
847 TypeImpl
*target_type
;
854 /* A simple fast path that can trigger a lot for leaf classes. */
856 if (type
->name
== typename
) {
860 target_type
= type_get_by_name(typename
);
862 /* target class type unknown, so fail the cast */
866 if (type
->class->interfaces
&&
867 type_is_ancestor(target_type
, type_interface
)) {
871 for (i
= class->interfaces
; i
; i
= i
->next
) {
872 ObjectClass
*target_class
= i
->data
;
874 if (type_is_ancestor(target_class
->type
, target_type
)) {
880 /* The match was ambiguous, don't allow a cast */
884 } else if (type_is_ancestor(type
, target_type
)) {
891 ObjectClass
*object_class_dynamic_cast_assert(ObjectClass
*class,
892 const char *typename
,
893 const char *file
, int line
,
898 trace_object_class_dynamic_cast_assert(class ? class->type
->name
: "(null)",
899 typename
, file
, line
, func
);
901 #ifdef CONFIG_QOM_CAST_DEBUG
904 for (i
= 0; class && i
< OBJECT_CLASS_CAST_CACHE
; i
++) {
905 if (atomic_read(&class->class_cast_cache
[i
]) == typename
) {
911 if (!class || !class->interfaces
) {
916 ret
= object_class_dynamic_cast(class, typename
);
918 fprintf(stderr
, "%s:%d:%s: Object %p is not an instance of type %s\n",
919 file
, line
, func
, class, typename
);
923 #ifdef CONFIG_QOM_CAST_DEBUG
924 if (class && ret
== class) {
925 for (i
= 1; i
< OBJECT_CLASS_CAST_CACHE
; i
++) {
926 atomic_set(&class->class_cast_cache
[i
- 1],
927 atomic_read(&class->class_cast_cache
[i
]));
929 atomic_set(&class->class_cast_cache
[i
- 1], typename
);
936 const char *object_get_typename(const Object
*obj
)
938 return obj
->class->type
->name
;
941 ObjectClass
*object_get_class(Object
*obj
)
946 bool object_class_is_abstract(ObjectClass
*klass
)
948 return klass
->type
->abstract
;
951 const char *object_class_get_name(ObjectClass
*klass
)
953 return klass
->type
->name
;
956 ObjectClass
*object_class_by_name(const char *typename
)
958 TypeImpl
*type
= type_get_by_name(typename
);
964 type_initialize(type
);
969 ObjectClass
*object_class_get_parent(ObjectClass
*class)
971 TypeImpl
*type
= type_get_parent(class->type
);
977 type_initialize(type
);
982 typedef struct OCFData
984 void (*fn
)(ObjectClass
*klass
, void *opaque
);
985 const char *implements_type
;
986 bool include_abstract
;
990 static void object_class_foreach_tramp(gpointer key
, gpointer value
,
993 OCFData
*data
= opaque
;
994 TypeImpl
*type
= value
;
997 type_initialize(type
);
1000 if (!data
->include_abstract
&& type
->abstract
) {
1004 if (data
->implements_type
&&
1005 !object_class_dynamic_cast(k
, data
->implements_type
)) {
1009 data
->fn(k
, data
->opaque
);
1012 void object_class_foreach(void (*fn
)(ObjectClass
*klass
, void *opaque
),
1013 const char *implements_type
, bool include_abstract
,
1016 OCFData data
= { fn
, implements_type
, include_abstract
, opaque
};
1018 enumerating_types
= true;
1019 g_hash_table_foreach(type_table_get(), object_class_foreach_tramp
, &data
);
1020 enumerating_types
= false;
1023 static int do_object_child_foreach(Object
*obj
,
1024 int (*fn
)(Object
*child
, void *opaque
),
1025 void *opaque
, bool recurse
)
1027 GHashTableIter iter
;
1028 ObjectProperty
*prop
;
1031 g_hash_table_iter_init(&iter
, obj
->properties
);
1032 while (g_hash_table_iter_next(&iter
, NULL
, (gpointer
*)&prop
)) {
1033 if (object_property_is_child(prop
)) {
1034 Object
*child
= prop
->opaque
;
1036 ret
= fn(child
, opaque
);
1041 do_object_child_foreach(child
, fn
, opaque
, true);
1048 int object_child_foreach(Object
*obj
, int (*fn
)(Object
*child
, void *opaque
),
1051 return do_object_child_foreach(obj
, fn
, opaque
, false);
1054 int object_child_foreach_recursive(Object
*obj
,
1055 int (*fn
)(Object
*child
, void *opaque
),
1058 return do_object_child_foreach(obj
, fn
, opaque
, true);
1061 static void object_class_get_list_tramp(ObjectClass
*klass
, void *opaque
)
1063 GSList
**list
= opaque
;
1065 *list
= g_slist_prepend(*list
, klass
);
1068 GSList
*object_class_get_list(const char *implements_type
,
1069 bool include_abstract
)
1071 GSList
*list
= NULL
;
1073 object_class_foreach(object_class_get_list_tramp
,
1074 implements_type
, include_abstract
, &list
);
1078 static gint
object_class_cmp(gconstpointer a
, gconstpointer b
)
1080 return strcasecmp(object_class_get_name((ObjectClass
*)a
),
1081 object_class_get_name((ObjectClass
*)b
));
1084 GSList
*object_class_get_list_sorted(const char *implements_type
,
1085 bool include_abstract
)
1087 return g_slist_sort(object_class_get_list(implements_type
, include_abstract
),
1091 void object_ref(Object
*obj
)
1096 atomic_inc(&obj
->ref
);
1099 void object_unref(Object
*obj
)
1104 g_assert(obj
->ref
> 0);
1106 /* parent always holds a reference to its children */
1107 if (atomic_fetch_dec(&obj
->ref
) == 1) {
1108 object_finalize(obj
);
1113 object_property_add(Object
*obj
, const char *name
, const char *type
,
1114 ObjectPropertyAccessor
*get
,
1115 ObjectPropertyAccessor
*set
,
1116 ObjectPropertyRelease
*release
,
1117 void *opaque
, Error
**errp
)
1119 ObjectProperty
*prop
;
1120 size_t name_len
= strlen(name
);
1122 if (name_len
>= 3 && !memcmp(name
+ name_len
- 3, "[*]", 4)) {
1124 ObjectProperty
*ret
;
1125 char *name_no_array
= g_strdup(name
);
1127 name_no_array
[name_len
- 3] = '\0';
1128 for (i
= 0; ; ++i
) {
1129 char *full_name
= g_strdup_printf("%s[%d]", name_no_array
, i
);
1131 ret
= object_property_add(obj
, full_name
, type
, get
, set
,
1132 release
, opaque
, NULL
);
1138 g_free(name_no_array
);
1142 if (object_property_find(obj
, name
, NULL
) != NULL
) {
1143 error_setg(errp
, "attempt to add duplicate property '%s' to object (type '%s')",
1144 name
, object_get_typename(obj
));
1148 prop
= g_malloc0(sizeof(*prop
));
1150 prop
->name
= g_strdup(name
);
1151 prop
->type
= g_strdup(type
);
1155 prop
->release
= release
;
1156 prop
->opaque
= opaque
;
1158 g_hash_table_insert(obj
->properties
, prop
->name
, prop
);
1163 object_class_property_add(ObjectClass
*klass
,
1166 ObjectPropertyAccessor
*get
,
1167 ObjectPropertyAccessor
*set
,
1168 ObjectPropertyRelease
*release
,
1172 ObjectProperty
*prop
;
1174 if (object_class_property_find(klass
, name
, NULL
) != NULL
) {
1175 error_setg(errp
, "attempt to add duplicate property '%s' to class (type '%s')",
1176 name
, object_class_get_name(klass
));
1180 prop
= g_malloc0(sizeof(*prop
));
1182 prop
->name
= g_strdup(name
);
1183 prop
->type
= g_strdup(type
);
1187 prop
->release
= release
;
1188 prop
->opaque
= opaque
;
1190 g_hash_table_insert(klass
->properties
, g_strdup(name
), prop
);
1195 ObjectProperty
*object_property_find(Object
*obj
, const char *name
,
1198 ObjectProperty
*prop
;
1199 ObjectClass
*klass
= object_get_class(obj
);
1201 prop
= object_class_property_find(klass
, name
, NULL
);
1206 prop
= g_hash_table_lookup(obj
->properties
, name
);
1211 error_setg(errp
, "Property '.%s' not found", name
);
1215 void object_property_iter_init(ObjectPropertyIterator
*iter
,
1218 g_hash_table_iter_init(&iter
->iter
, obj
->properties
);
1219 iter
->nextclass
= object_get_class(obj
);
1222 ObjectProperty
*object_property_iter_next(ObjectPropertyIterator
*iter
)
1225 while (!g_hash_table_iter_next(&iter
->iter
, &key
, &val
)) {
1226 if (!iter
->nextclass
) {
1229 g_hash_table_iter_init(&iter
->iter
, iter
->nextclass
->properties
);
1230 iter
->nextclass
= object_class_get_parent(iter
->nextclass
);
1235 void object_class_property_iter_init(ObjectPropertyIterator
*iter
,
1238 g_hash_table_iter_init(&iter
->iter
, klass
->properties
);
1239 iter
->nextclass
= object_class_get_parent(klass
);
1242 ObjectProperty
*object_class_property_find(ObjectClass
*klass
, const char *name
,
1245 ObjectProperty
*prop
;
1246 ObjectClass
*parent_klass
;
1248 parent_klass
= object_class_get_parent(klass
);
1250 prop
= object_class_property_find(parent_klass
, name
, NULL
);
1256 prop
= g_hash_table_lookup(klass
->properties
, name
);
1258 error_setg(errp
, "Property '.%s' not found", name
);
1263 void object_property_del(Object
*obj
, const char *name
, Error
**errp
)
1265 ObjectProperty
*prop
= g_hash_table_lookup(obj
->properties
, name
);
1268 error_setg(errp
, "Property '.%s' not found", name
);
1272 if (prop
->release
) {
1273 prop
->release(obj
, name
, prop
->opaque
);
1275 g_hash_table_remove(obj
->properties
, name
);
1278 void object_property_get(Object
*obj
, Visitor
*v
, const char *name
,
1281 ObjectProperty
*prop
= object_property_find(obj
, name
, errp
);
1287 error_setg(errp
, QERR_PERMISSION_DENIED
);
1289 prop
->get(obj
, v
, name
, prop
->opaque
, errp
);
1293 void object_property_set(Object
*obj
, Visitor
*v
, const char *name
,
1296 ObjectProperty
*prop
= object_property_find(obj
, name
, errp
);
1302 error_setg(errp
, QERR_PERMISSION_DENIED
);
1304 prop
->set(obj
, v
, name
, prop
->opaque
, errp
);
1308 void object_property_set_str(Object
*obj
, const char *value
,
1309 const char *name
, Error
**errp
)
1311 QString
*qstr
= qstring_from_str(value
);
1312 object_property_set_qobject(obj
, QOBJECT(qstr
), name
, errp
);
1314 qobject_unref(qstr
);
1317 char *object_property_get_str(Object
*obj
, const char *name
,
1320 QObject
*ret
= object_property_get_qobject(obj
, name
, errp
);
1327 retval
= g_strdup(qobject_get_try_str(ret
));
1329 error_setg(errp
, QERR_INVALID_PARAMETER_TYPE
, name
, "string");
1336 void object_property_set_link(Object
*obj
, Object
*value
,
1337 const char *name
, Error
**errp
)
1340 gchar
*path
= object_get_canonical_path(value
);
1341 object_property_set_str(obj
, path
, name
, errp
);
1344 object_property_set_str(obj
, "", name
, errp
);
1348 Object
*object_property_get_link(Object
*obj
, const char *name
,
1351 char *str
= object_property_get_str(obj
, name
, errp
);
1352 Object
*target
= NULL
;
1355 target
= object_resolve_path(str
, NULL
);
1357 error_set(errp
, ERROR_CLASS_DEVICE_NOT_FOUND
,
1358 "Device '%s' not found", str
);
1366 void object_property_set_bool(Object
*obj
, bool value
,
1367 const char *name
, Error
**errp
)
1369 QBool
*qbool
= qbool_from_bool(value
);
1370 object_property_set_qobject(obj
, QOBJECT(qbool
), name
, errp
);
1372 qobject_unref(qbool
);
1375 bool object_property_get_bool(Object
*obj
, const char *name
,
1378 QObject
*ret
= object_property_get_qobject(obj
, name
, errp
);
1385 qbool
= qobject_to(QBool
, ret
);
1387 error_setg(errp
, QERR_INVALID_PARAMETER_TYPE
, name
, "boolean");
1390 retval
= qbool_get_bool(qbool
);
1397 void object_property_set_int(Object
*obj
, int64_t value
,
1398 const char *name
, Error
**errp
)
1400 QNum
*qnum
= qnum_from_int(value
);
1401 object_property_set_qobject(obj
, QOBJECT(qnum
), name
, errp
);
1403 qobject_unref(qnum
);
1406 int64_t object_property_get_int(Object
*obj
, const char *name
,
1409 QObject
*ret
= object_property_get_qobject(obj
, name
, errp
);
1417 qnum
= qobject_to(QNum
, ret
);
1418 if (!qnum
|| !qnum_get_try_int(qnum
, &retval
)) {
1419 error_setg(errp
, QERR_INVALID_PARAMETER_TYPE
, name
, "int");
1427 void object_property_set_uint(Object
*obj
, uint64_t value
,
1428 const char *name
, Error
**errp
)
1430 QNum
*qnum
= qnum_from_uint(value
);
1432 object_property_set_qobject(obj
, QOBJECT(qnum
), name
, errp
);
1433 qobject_unref(qnum
);
1436 uint64_t object_property_get_uint(Object
*obj
, const char *name
,
1439 QObject
*ret
= object_property_get_qobject(obj
, name
, errp
);
1446 qnum
= qobject_to(QNum
, ret
);
1447 if (!qnum
|| !qnum_get_try_uint(qnum
, &retval
)) {
1448 error_setg(errp
, QERR_INVALID_PARAMETER_TYPE
, name
, "uint");
1456 typedef struct EnumProperty
{
1457 const QEnumLookup
*lookup
;
1458 int (*get
)(Object
*, Error
**);
1459 void (*set
)(Object
*, int, Error
**);
1462 int object_property_get_enum(Object
*obj
, const char *name
,
1463 const char *typename
, Error
**errp
)
1469 ObjectProperty
*prop
= object_property_find(obj
, name
, errp
);
1470 EnumProperty
*enumprop
;
1476 if (!g_str_equal(prop
->type
, typename
)) {
1477 error_setg(errp
, "Property %s on %s is not '%s' enum type",
1478 name
, object_class_get_name(
1479 object_get_class(obj
)), typename
);
1483 enumprop
= prop
->opaque
;
1485 v
= string_output_visitor_new(false, &str
);
1486 object_property_get(obj
, v
, name
, &err
);
1488 error_propagate(errp
, err
);
1492 visit_complete(v
, &str
);
1494 v
= string_input_visitor_new(str
);
1495 visit_type_enum(v
, name
, &ret
, enumprop
->lookup
, errp
);
1503 void object_property_get_uint16List(Object
*obj
, const char *name
,
1504 uint16List
**list
, Error
**errp
)
1510 v
= string_output_visitor_new(false, &str
);
1511 object_property_get(obj
, v
, name
, &err
);
1513 error_propagate(errp
, err
);
1516 visit_complete(v
, &str
);
1518 v
= string_input_visitor_new(str
);
1519 visit_type_uint16List(v
, NULL
, list
, errp
);
1526 void object_property_parse(Object
*obj
, const char *string
,
1527 const char *name
, Error
**errp
)
1529 Visitor
*v
= string_input_visitor_new(string
);
1530 object_property_set(obj
, v
, name
, errp
);
1534 char *object_property_print(Object
*obj
, const char *name
, bool human
,
1538 char *string
= NULL
;
1539 Error
*local_err
= NULL
;
1541 v
= string_output_visitor_new(human
, &string
);
1542 object_property_get(obj
, v
, name
, &local_err
);
1544 error_propagate(errp
, local_err
);
1548 visit_complete(v
, &string
);
1555 const char *object_property_get_type(Object
*obj
, const char *name
, Error
**errp
)
1557 ObjectProperty
*prop
= object_property_find(obj
, name
, errp
);
1565 Object
*object_get_root(void)
1567 static Object
*root
;
1570 root
= object_new("container");
1576 Object
*object_get_objects_root(void)
1578 return container_get(object_get_root(), "/objects");
1581 Object
*object_get_internal_root(void)
1583 static Object
*internal_root
;
1585 if (!internal_root
) {
1586 internal_root
= object_new("container");
1589 return internal_root
;
1592 static void object_get_child_property(Object
*obj
, Visitor
*v
,
1593 const char *name
, void *opaque
,
1596 Object
*child
= opaque
;
1599 path
= object_get_canonical_path(child
);
1600 visit_type_str(v
, name
, &path
, errp
);
1604 static Object
*object_resolve_child_property(Object
*parent
, void *opaque
, const gchar
*part
)
1609 static void object_finalize_child_property(Object
*obj
, const char *name
,
1612 Object
*child
= opaque
;
1614 if (child
->class->unparent
) {
1615 (child
->class->unparent
)(child
);
1617 child
->parent
= NULL
;
1618 object_unref(child
);
1621 void object_property_add_child(Object
*obj
, const char *name
,
1622 Object
*child
, Error
**errp
)
1624 Error
*local_err
= NULL
;
1628 if (child
->parent
!= NULL
) {
1629 error_setg(errp
, "child object is already parented");
1633 type
= g_strdup_printf("child<%s>", object_get_typename(OBJECT(child
)));
1635 op
= object_property_add(obj
, name
, type
, object_get_child_property
, NULL
,
1636 object_finalize_child_property
, child
, &local_err
);
1638 error_propagate(errp
, local_err
);
1642 op
->resolve
= object_resolve_child_property
;
1644 child
->parent
= obj
;
1650 void object_property_allow_set_link(const Object
*obj
, const char *name
,
1651 Object
*val
, Error
**errp
)
1653 /* Allow the link to be set, always */
1658 void (*check
)(const Object
*, const char *, Object
*, Error
**);
1659 ObjectPropertyLinkFlags flags
;
1662 static void object_get_link_property(Object
*obj
, Visitor
*v
,
1663 const char *name
, void *opaque
,
1666 LinkProperty
*lprop
= opaque
;
1667 Object
**child
= lprop
->child
;
1671 path
= object_get_canonical_path(*child
);
1672 visit_type_str(v
, name
, &path
, errp
);
1676 visit_type_str(v
, name
, &path
, errp
);
1681 * object_resolve_link:
1683 * Lookup an object and ensure its type matches the link property type. This
1684 * is similar to object_resolve_path() except type verification against the
1685 * link property is performed.
1687 * Returns: The matched object or NULL on path lookup failures.
1689 static Object
*object_resolve_link(Object
*obj
, const char *name
,
1690 const char *path
, Error
**errp
)
1694 bool ambiguous
= false;
1697 /* Go from link<FOO> to FOO. */
1698 type
= object_property_get_type(obj
, name
, NULL
);
1699 target_type
= g_strndup(&type
[5], strlen(type
) - 6);
1700 target
= object_resolve_path_type(path
, target_type
, &ambiguous
);
1703 error_setg(errp
, "Path '%s' does not uniquely identify an object",
1705 } else if (!target
) {
1706 target
= object_resolve_path(path
, &ambiguous
);
1707 if (target
|| ambiguous
) {
1708 error_setg(errp
, QERR_INVALID_PARAMETER_TYPE
, name
, target_type
);
1710 error_set(errp
, ERROR_CLASS_DEVICE_NOT_FOUND
,
1711 "Device '%s' not found", path
);
1715 g_free(target_type
);
1720 static void object_set_link_property(Object
*obj
, Visitor
*v
,
1721 const char *name
, void *opaque
,
1724 Error
*local_err
= NULL
;
1725 LinkProperty
*prop
= opaque
;
1726 Object
**child
= prop
->child
;
1727 Object
*old_target
= *child
;
1728 Object
*new_target
= NULL
;
1731 visit_type_str(v
, name
, &path
, &local_err
);
1733 if (!local_err
&& strcmp(path
, "") != 0) {
1734 new_target
= object_resolve_link(obj
, name
, path
, &local_err
);
1739 error_propagate(errp
, local_err
);
1743 prop
->check(obj
, name
, new_target
, &local_err
);
1745 error_propagate(errp
, local_err
);
1749 *child
= new_target
;
1750 if (prop
->flags
== OBJ_PROP_LINK_STRONG
) {
1751 object_ref(new_target
);
1752 object_unref(old_target
);
1756 static Object
*object_resolve_link_property(Object
*parent
, void *opaque
, const gchar
*part
)
1758 LinkProperty
*lprop
= opaque
;
1760 return *lprop
->child
;
1763 static void object_release_link_property(Object
*obj
, const char *name
,
1766 LinkProperty
*prop
= opaque
;
1768 if ((prop
->flags
& OBJ_PROP_LINK_STRONG
) && *prop
->child
) {
1769 object_unref(*prop
->child
);
1774 void object_property_add_link(Object
*obj
, const char *name
,
1775 const char *type
, Object
**child
,
1776 void (*check
)(const Object
*, const char *,
1777 Object
*, Error
**),
1778 ObjectPropertyLinkFlags flags
,
1781 Error
*local_err
= NULL
;
1782 LinkProperty
*prop
= g_malloc(sizeof(*prop
));
1786 prop
->child
= child
;
1787 prop
->check
= check
;
1788 prop
->flags
= flags
;
1790 full_type
= g_strdup_printf("link<%s>", type
);
1792 op
= object_property_add(obj
, name
, full_type
,
1793 object_get_link_property
,
1794 check
? object_set_link_property
: NULL
,
1795 object_release_link_property
,
1799 error_propagate(errp
, local_err
);
1804 op
->resolve
= object_resolve_link_property
;
1810 void object_property_add_const_link(Object
*obj
, const char *name
,
1811 Object
*target
, Error
**errp
)
1816 link_type
= g_strdup_printf("link<%s>", object_get_typename(target
));
1817 op
= object_property_add(obj
, name
, link_type
,
1818 object_get_child_property
, NULL
,
1819 NULL
, target
, errp
);
1821 op
->resolve
= object_resolve_child_property
;
1826 gchar
*object_get_canonical_path_component(Object
*obj
)
1828 ObjectProperty
*prop
= NULL
;
1829 GHashTableIter iter
;
1831 if (obj
->parent
== NULL
) {
1835 g_hash_table_iter_init(&iter
, obj
->parent
->properties
);
1836 while (g_hash_table_iter_next(&iter
, NULL
, (gpointer
*)&prop
)) {
1837 if (!object_property_is_child(prop
)) {
1841 if (prop
->opaque
== obj
) {
1842 return g_strdup(prop
->name
);
1846 /* obj had a parent but was not a child, should never happen */
1847 g_assert_not_reached();
1851 gchar
*object_get_canonical_path(Object
*obj
)
1853 Object
*root
= object_get_root();
1854 char *newpath
, *path
= NULL
;
1857 return g_strdup("/");
1861 char *component
= object_get_canonical_path_component(obj
);
1864 /* A canonical path must be complete, so discard what was
1871 newpath
= g_strdup_printf("/%s%s", component
, path
? path
: "");
1876 } while (obj
!= root
);
1881 Object
*object_resolve_path_component(Object
*parent
, const gchar
*part
)
1883 ObjectProperty
*prop
= object_property_find(parent
, part
, NULL
);
1888 if (prop
->resolve
) {
1889 return prop
->resolve(parent
, prop
->opaque
, part
);
1895 static Object
*object_resolve_abs_path(Object
*parent
,
1897 const char *typename
,
1902 if (parts
[index
] == NULL
) {
1903 return object_dynamic_cast(parent
, typename
);
1906 if (strcmp(parts
[index
], "") == 0) {
1907 return object_resolve_abs_path(parent
, parts
, typename
, index
+ 1);
1910 child
= object_resolve_path_component(parent
, parts
[index
]);
1915 return object_resolve_abs_path(child
, parts
, typename
, index
+ 1);
1918 static Object
*object_resolve_partial_path(Object
*parent
,
1920 const char *typename
,
1924 GHashTableIter iter
;
1925 ObjectProperty
*prop
;
1927 obj
= object_resolve_abs_path(parent
, parts
, typename
, 0);
1929 g_hash_table_iter_init(&iter
, parent
->properties
);
1930 while (g_hash_table_iter_next(&iter
, NULL
, (gpointer
*)&prop
)) {
1933 if (!object_property_is_child(prop
)) {
1937 found
= object_resolve_partial_path(prop
->opaque
, parts
,
1938 typename
, ambiguous
);
1955 Object
*object_resolve_path_type(const char *path
, const char *typename
,
1961 parts
= g_strsplit(path
, "/", 0);
1964 if (parts
[0] == NULL
|| strcmp(parts
[0], "") != 0) {
1965 bool ambiguous
= false;
1966 obj
= object_resolve_partial_path(object_get_root(), parts
,
1967 typename
, &ambiguous
);
1969 *ambiguousp
= ambiguous
;
1972 obj
= object_resolve_abs_path(object_get_root(), parts
, typename
, 1);
1980 Object
*object_resolve_path(const char *path
, bool *ambiguous
)
1982 return object_resolve_path_type(path
, TYPE_OBJECT
, ambiguous
);
1985 typedef struct StringProperty
1987 char *(*get
)(Object
*, Error
**);
1988 void (*set
)(Object
*, const char *, Error
**);
1991 static void property_get_str(Object
*obj
, Visitor
*v
, const char *name
,
1992 void *opaque
, Error
**errp
)
1994 StringProperty
*prop
= opaque
;
1998 value
= prop
->get(obj
, &err
);
2000 error_propagate(errp
, err
);
2004 visit_type_str(v
, name
, &value
, errp
);
2008 static void property_set_str(Object
*obj
, Visitor
*v
, const char *name
,
2009 void *opaque
, Error
**errp
)
2011 StringProperty
*prop
= opaque
;
2013 Error
*local_err
= NULL
;
2015 visit_type_str(v
, name
, &value
, &local_err
);
2017 error_propagate(errp
, local_err
);
2021 prop
->set(obj
, value
, errp
);
2025 static void property_release_str(Object
*obj
, const char *name
,
2028 StringProperty
*prop
= opaque
;
2032 void object_property_add_str(Object
*obj
, const char *name
,
2033 char *(*get
)(Object
*, Error
**),
2034 void (*set
)(Object
*, const char *, Error
**),
2037 Error
*local_err
= NULL
;
2038 StringProperty
*prop
= g_malloc0(sizeof(*prop
));
2043 object_property_add(obj
, name
, "string",
2044 get
? property_get_str
: NULL
,
2045 set
? property_set_str
: NULL
,
2046 property_release_str
,
2049 error_propagate(errp
, local_err
);
2054 void object_class_property_add_str(ObjectClass
*klass
, const char *name
,
2055 char *(*get
)(Object
*, Error
**),
2056 void (*set
)(Object
*, const char *,
2060 Error
*local_err
= NULL
;
2061 StringProperty
*prop
= g_malloc0(sizeof(*prop
));
2066 object_class_property_add(klass
, name
, "string",
2067 get
? property_get_str
: NULL
,
2068 set
? property_set_str
: NULL
,
2069 property_release_str
,
2072 error_propagate(errp
, local_err
);
2077 typedef struct BoolProperty
2079 bool (*get
)(Object
*, Error
**);
2080 void (*set
)(Object
*, bool, Error
**);
2083 static void property_get_bool(Object
*obj
, Visitor
*v
, const char *name
,
2084 void *opaque
, Error
**errp
)
2086 BoolProperty
*prop
= opaque
;
2090 value
= prop
->get(obj
, &err
);
2092 error_propagate(errp
, err
);
2096 visit_type_bool(v
, name
, &value
, errp
);
2099 static void property_set_bool(Object
*obj
, Visitor
*v
, const char *name
,
2100 void *opaque
, Error
**errp
)
2102 BoolProperty
*prop
= opaque
;
2104 Error
*local_err
= NULL
;
2106 visit_type_bool(v
, name
, &value
, &local_err
);
2108 error_propagate(errp
, local_err
);
2112 prop
->set(obj
, value
, errp
);
2115 static void property_release_bool(Object
*obj
, const char *name
,
2118 BoolProperty
*prop
= opaque
;
2122 void object_property_add_bool(Object
*obj
, const char *name
,
2123 bool (*get
)(Object
*, Error
**),
2124 void (*set
)(Object
*, bool, Error
**),
2127 Error
*local_err
= NULL
;
2128 BoolProperty
*prop
= g_malloc0(sizeof(*prop
));
2133 object_property_add(obj
, name
, "bool",
2134 get
? property_get_bool
: NULL
,
2135 set
? property_set_bool
: NULL
,
2136 property_release_bool
,
2139 error_propagate(errp
, local_err
);
2144 void object_class_property_add_bool(ObjectClass
*klass
, const char *name
,
2145 bool (*get
)(Object
*, Error
**),
2146 void (*set
)(Object
*, bool, Error
**),
2149 Error
*local_err
= NULL
;
2150 BoolProperty
*prop
= g_malloc0(sizeof(*prop
));
2155 object_class_property_add(klass
, name
, "bool",
2156 get
? property_get_bool
: NULL
,
2157 set
? property_set_bool
: NULL
,
2158 property_release_bool
,
2161 error_propagate(errp
, local_err
);
2166 static void property_get_enum(Object
*obj
, Visitor
*v
, const char *name
,
2167 void *opaque
, Error
**errp
)
2169 EnumProperty
*prop
= opaque
;
2173 value
= prop
->get(obj
, &err
);
2175 error_propagate(errp
, err
);
2179 visit_type_enum(v
, name
, &value
, prop
->lookup
, errp
);
2182 static void property_set_enum(Object
*obj
, Visitor
*v
, const char *name
,
2183 void *opaque
, Error
**errp
)
2185 EnumProperty
*prop
= opaque
;
2189 visit_type_enum(v
, name
, &value
, prop
->lookup
, &err
);
2191 error_propagate(errp
, err
);
2194 prop
->set(obj
, value
, errp
);
2197 static void property_release_enum(Object
*obj
, const char *name
,
2200 EnumProperty
*prop
= opaque
;
2204 void object_property_add_enum(Object
*obj
, const char *name
,
2205 const char *typename
,
2206 const QEnumLookup
*lookup
,
2207 int (*get
)(Object
*, Error
**),
2208 void (*set
)(Object
*, int, Error
**),
2211 Error
*local_err
= NULL
;
2212 EnumProperty
*prop
= g_malloc(sizeof(*prop
));
2214 prop
->lookup
= lookup
;
2218 object_property_add(obj
, name
, typename
,
2219 get
? property_get_enum
: NULL
,
2220 set
? property_set_enum
: NULL
,
2221 property_release_enum
,
2224 error_propagate(errp
, local_err
);
2229 void object_class_property_add_enum(ObjectClass
*klass
, const char *name
,
2230 const char *typename
,
2231 const QEnumLookup
*lookup
,
2232 int (*get
)(Object
*, Error
**),
2233 void (*set
)(Object
*, int, Error
**),
2236 Error
*local_err
= NULL
;
2237 EnumProperty
*prop
= g_malloc(sizeof(*prop
));
2239 prop
->lookup
= lookup
;
2243 object_class_property_add(klass
, name
, typename
,
2244 get
? property_get_enum
: NULL
,
2245 set
? property_set_enum
: NULL
,
2246 property_release_enum
,
2249 error_propagate(errp
, local_err
);
2254 typedef struct TMProperty
{
2255 void (*get
)(Object
*, struct tm
*, Error
**);
2258 static void property_get_tm(Object
*obj
, Visitor
*v
, const char *name
,
2259 void *opaque
, Error
**errp
)
2261 TMProperty
*prop
= opaque
;
2265 prop
->get(obj
, &value
, &err
);
2270 visit_start_struct(v
, name
, NULL
, 0, &err
);
2274 visit_type_int32(v
, "tm_year", &value
.tm_year
, &err
);
2278 visit_type_int32(v
, "tm_mon", &value
.tm_mon
, &err
);
2282 visit_type_int32(v
, "tm_mday", &value
.tm_mday
, &err
);
2286 visit_type_int32(v
, "tm_hour", &value
.tm_hour
, &err
);
2290 visit_type_int32(v
, "tm_min", &value
.tm_min
, &err
);
2294 visit_type_int32(v
, "tm_sec", &value
.tm_sec
, &err
);
2298 visit_check_struct(v
, &err
);
2300 visit_end_struct(v
, NULL
);
2302 error_propagate(errp
, err
);
2306 static void property_release_tm(Object
*obj
, const char *name
,
2309 TMProperty
*prop
= opaque
;
2313 void object_property_add_tm(Object
*obj
, const char *name
,
2314 void (*get
)(Object
*, struct tm
*, Error
**),
2317 Error
*local_err
= NULL
;
2318 TMProperty
*prop
= g_malloc0(sizeof(*prop
));
2322 object_property_add(obj
, name
, "struct tm",
2323 get
? property_get_tm
: NULL
, NULL
,
2324 property_release_tm
,
2327 error_propagate(errp
, local_err
);
2332 void object_class_property_add_tm(ObjectClass
*klass
, const char *name
,
2333 void (*get
)(Object
*, struct tm
*, Error
**),
2336 Error
*local_err
= NULL
;
2337 TMProperty
*prop
= g_malloc0(sizeof(*prop
));
2341 object_class_property_add(klass
, name
, "struct tm",
2342 get
? property_get_tm
: NULL
, NULL
,
2343 property_release_tm
,
2346 error_propagate(errp
, local_err
);
2351 static char *qdev_get_type(Object
*obj
, Error
**errp
)
2353 return g_strdup(object_get_typename(obj
));
2356 static void property_get_uint8_ptr(Object
*obj
, Visitor
*v
, const char *name
,
2357 void *opaque
, Error
**errp
)
2359 uint8_t value
= *(uint8_t *)opaque
;
2360 visit_type_uint8(v
, name
, &value
, errp
);
2363 static void property_get_uint16_ptr(Object
*obj
, Visitor
*v
, const char *name
,
2364 void *opaque
, Error
**errp
)
2366 uint16_t value
= *(uint16_t *)opaque
;
2367 visit_type_uint16(v
, name
, &value
, errp
);
2370 static void property_get_uint32_ptr(Object
*obj
, Visitor
*v
, const char *name
,
2371 void *opaque
, Error
**errp
)
2373 uint32_t value
= *(uint32_t *)opaque
;
2374 visit_type_uint32(v
, name
, &value
, errp
);
2377 static void property_get_uint64_ptr(Object
*obj
, Visitor
*v
, const char *name
,
2378 void *opaque
, Error
**errp
)
2380 uint64_t value
= *(uint64_t *)opaque
;
2381 visit_type_uint64(v
, name
, &value
, errp
);
2384 void object_property_add_uint8_ptr(Object
*obj
, const char *name
,
2385 const uint8_t *v
, Error
**errp
)
2387 object_property_add(obj
, name
, "uint8", property_get_uint8_ptr
,
2388 NULL
, NULL
, (void *)v
, errp
);
2391 void object_class_property_add_uint8_ptr(ObjectClass
*klass
, const char *name
,
2392 const uint8_t *v
, Error
**errp
)
2394 object_class_property_add(klass
, name
, "uint8", property_get_uint8_ptr
,
2395 NULL
, NULL
, (void *)v
, errp
);
2398 void object_property_add_uint16_ptr(Object
*obj
, const char *name
,
2399 const uint16_t *v
, Error
**errp
)
2401 object_property_add(obj
, name
, "uint16", property_get_uint16_ptr
,
2402 NULL
, NULL
, (void *)v
, errp
);
2405 void object_class_property_add_uint16_ptr(ObjectClass
*klass
, const char *name
,
2406 const uint16_t *v
, Error
**errp
)
2408 object_class_property_add(klass
, name
, "uint16", property_get_uint16_ptr
,
2409 NULL
, NULL
, (void *)v
, errp
);
2412 void object_property_add_uint32_ptr(Object
*obj
, const char *name
,
2413 const uint32_t *v
, Error
**errp
)
2415 object_property_add(obj
, name
, "uint32", property_get_uint32_ptr
,
2416 NULL
, NULL
, (void *)v
, errp
);
2419 void object_class_property_add_uint32_ptr(ObjectClass
*klass
, const char *name
,
2420 const uint32_t *v
, Error
**errp
)
2422 object_class_property_add(klass
, name
, "uint32", property_get_uint32_ptr
,
2423 NULL
, NULL
, (void *)v
, errp
);
2426 void object_property_add_uint64_ptr(Object
*obj
, const char *name
,
2427 const uint64_t *v
, Error
**errp
)
2429 object_property_add(obj
, name
, "uint64", property_get_uint64_ptr
,
2430 NULL
, NULL
, (void *)v
, errp
);
2433 void object_class_property_add_uint64_ptr(ObjectClass
*klass
, const char *name
,
2434 const uint64_t *v
, Error
**errp
)
2436 object_class_property_add(klass
, name
, "uint64", property_get_uint64_ptr
,
2437 NULL
, NULL
, (void *)v
, errp
);
2445 static void property_get_alias(Object
*obj
, Visitor
*v
, const char *name
,
2446 void *opaque
, Error
**errp
)
2448 AliasProperty
*prop
= opaque
;
2450 object_property_get(prop
->target_obj
, v
, prop
->target_name
, errp
);
2453 static void property_set_alias(Object
*obj
, Visitor
*v
, const char *name
,
2454 void *opaque
, Error
**errp
)
2456 AliasProperty
*prop
= opaque
;
2458 object_property_set(prop
->target_obj
, v
, prop
->target_name
, errp
);
2461 static Object
*property_resolve_alias(Object
*obj
, void *opaque
,
2464 AliasProperty
*prop
= opaque
;
2466 return object_resolve_path_component(prop
->target_obj
, prop
->target_name
);
2469 static void property_release_alias(Object
*obj
, const char *name
, void *opaque
)
2471 AliasProperty
*prop
= opaque
;
2473 g_free(prop
->target_name
);
2477 void object_property_add_alias(Object
*obj
, const char *name
,
2478 Object
*target_obj
, const char *target_name
,
2481 AliasProperty
*prop
;
2483 ObjectProperty
*target_prop
;
2485 Error
*local_err
= NULL
;
2487 target_prop
= object_property_find(target_obj
, target_name
, errp
);
2492 if (object_property_is_child(target_prop
)) {
2493 prop_type
= g_strdup_printf("link%s",
2494 target_prop
->type
+ strlen("child"));
2496 prop_type
= g_strdup(target_prop
->type
);
2499 prop
= g_malloc(sizeof(*prop
));
2500 prop
->target_obj
= target_obj
;
2501 prop
->target_name
= g_strdup(target_name
);
2503 op
= object_property_add(obj
, name
, prop_type
,
2506 property_release_alias
,
2509 error_propagate(errp
, local_err
);
2513 op
->resolve
= property_resolve_alias
;
2515 object_property_set_description(obj
, op
->name
,
2516 target_prop
->description
,
2523 void object_property_set_description(Object
*obj
, const char *name
,
2524 const char *description
, Error
**errp
)
2528 op
= object_property_find(obj
, name
, errp
);
2533 g_free(op
->description
);
2534 op
->description
= g_strdup(description
);
2537 void object_class_property_set_description(ObjectClass
*klass
,
2539 const char *description
,
2544 op
= g_hash_table_lookup(klass
->properties
, name
);
2546 error_setg(errp
, "Property '.%s' not found", name
);
2550 g_free(op
->description
);
2551 op
->description
= g_strdup(description
);
2554 static void object_class_init(ObjectClass
*klass
, void *data
)
2556 object_class_property_add_str(klass
, "type", qdev_get_type
,
2557 NULL
, &error_abort
);
2560 static void register_types(void)
2562 static TypeInfo interface_info
= {
2563 .name
= TYPE_INTERFACE
,
2564 .class_size
= sizeof(InterfaceClass
),
2568 static TypeInfo object_info
= {
2569 .name
= TYPE_OBJECT
,
2570 .instance_size
= sizeof(Object
),
2571 .class_init
= object_class_init
,
2575 type_interface
= type_register_internal(&interface_info
);
2576 type_register_internal(&object_info
);
2579 type_init(register_types
)