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/qobject-input-visitor.h"
23 #include "qapi/qapi-builtin-visit.h"
24 #include "qapi/qmp/qerror.h"
25 #include "qapi/qmp/qjson.h"
28 /* TODO: replace QObject with a simpler visitor to avoid a dependency
29 * of the QOM core on QObject? */
30 #include "qom/qom-qobject.h"
31 #include "qapi/qmp/qbool.h"
32 #include "qapi/qmp/qnum.h"
33 #include "qapi/qmp/qstring.h"
34 #include "qemu/error-report.h"
36 #define MAX_INTERFACES 32
38 typedef struct InterfaceImpl InterfaceImpl
;
39 typedef struct TypeImpl TypeImpl
;
54 void (*class_init
)(ObjectClass
*klass
, void *data
);
55 void (*class_base_init
)(ObjectClass
*klass
, void *data
);
59 void (*instance_init
)(Object
*obj
);
60 void (*instance_post_init
)(Object
*obj
);
61 void (*instance_finalize
)(Object
*obj
);
66 TypeImpl
*parent_type
;
71 InterfaceImpl interfaces
[MAX_INTERFACES
];
74 static Type type_interface
;
76 static GHashTable
*type_table_get(void)
78 static GHashTable
*type_table
;
80 if (type_table
== NULL
) {
81 type_table
= g_hash_table_new(g_str_hash
, g_str_equal
);
87 static bool enumerating_types
;
89 static void type_table_add(TypeImpl
*ti
)
91 assert(!enumerating_types
);
92 g_hash_table_insert(type_table_get(), (void *)ti
->name
, ti
);
95 static TypeImpl
*type_table_lookup(const char *name
)
97 return g_hash_table_lookup(type_table_get(), name
);
100 static TypeImpl
*type_new(const TypeInfo
*info
)
102 TypeImpl
*ti
= g_malloc0(sizeof(*ti
));
105 g_assert(info
->name
!= NULL
);
107 if (type_table_lookup(info
->name
) != NULL
) {
108 fprintf(stderr
, "Registering `%s' which already exists\n", info
->name
);
112 ti
->name
= g_strdup(info
->name
);
113 ti
->parent
= g_strdup(info
->parent
);
115 ti
->class_size
= info
->class_size
;
116 ti
->instance_size
= info
->instance_size
;
118 ti
->class_init
= info
->class_init
;
119 ti
->class_base_init
= info
->class_base_init
;
120 ti
->class_data
= info
->class_data
;
122 ti
->instance_init
= info
->instance_init
;
123 ti
->instance_post_init
= info
->instance_post_init
;
124 ti
->instance_finalize
= info
->instance_finalize
;
126 ti
->abstract
= info
->abstract
;
128 for (i
= 0; info
->interfaces
&& info
->interfaces
[i
].type
; i
++) {
129 ti
->interfaces
[i
].typename
= g_strdup(info
->interfaces
[i
].type
);
131 ti
->num_interfaces
= i
;
136 static TypeImpl
*type_register_internal(const TypeInfo
*info
)
145 TypeImpl
*type_register(const TypeInfo
*info
)
147 assert(info
->parent
);
148 return type_register_internal(info
);
151 TypeImpl
*type_register_static(const TypeInfo
*info
)
153 return type_register(info
);
156 void type_register_static_array(const TypeInfo
*infos
, int nr_infos
)
160 for (i
= 0; i
< nr_infos
; i
++) {
161 type_register_static(&infos
[i
]);
165 static TypeImpl
*type_get_by_name(const char *name
)
171 return type_table_lookup(name
);
174 static TypeImpl
*type_get_parent(TypeImpl
*type
)
176 if (!type
->parent_type
&& type
->parent
) {
177 type
->parent_type
= type_get_by_name(type
->parent
);
178 if (!type
->parent_type
) {
179 fprintf(stderr
, "Type '%s' is missing its parent '%s'\n",
180 type
->name
, type
->parent
);
185 return type
->parent_type
;
188 static bool type_has_parent(TypeImpl
*type
)
190 return (type
->parent
!= NULL
);
193 static size_t type_class_get_size(TypeImpl
*ti
)
195 if (ti
->class_size
) {
196 return ti
->class_size
;
199 if (type_has_parent(ti
)) {
200 return type_class_get_size(type_get_parent(ti
));
203 return sizeof(ObjectClass
);
206 static size_t type_object_get_size(TypeImpl
*ti
)
208 if (ti
->instance_size
) {
209 return ti
->instance_size
;
212 if (type_has_parent(ti
)) {
213 return type_object_get_size(type_get_parent(ti
));
219 size_t object_type_get_instance_size(const char *typename
)
221 TypeImpl
*type
= type_get_by_name(typename
);
223 g_assert(type
!= NULL
);
224 return type_object_get_size(type
);
227 static bool type_is_ancestor(TypeImpl
*type
, TypeImpl
*target_type
)
231 /* Check if target_type is a direct ancestor of type */
233 if (type
== target_type
) {
237 type
= type_get_parent(type
);
243 static void type_initialize(TypeImpl
*ti
);
245 static void type_initialize_interface(TypeImpl
*ti
, TypeImpl
*interface_type
,
246 TypeImpl
*parent_type
)
248 InterfaceClass
*new_iface
;
250 TypeImpl
*iface_impl
;
252 info
.parent
= parent_type
->name
;
253 info
.name
= g_strdup_printf("%s::%s", ti
->name
, interface_type
->name
);
254 info
.abstract
= true;
256 iface_impl
= type_new(&info
);
257 iface_impl
->parent_type
= parent_type
;
258 type_initialize(iface_impl
);
259 g_free((char *)info
.name
);
261 new_iface
= (InterfaceClass
*)iface_impl
->class;
262 new_iface
->concrete_class
= ti
->class;
263 new_iface
->interface_type
= interface_type
;
265 ti
->class->interfaces
= g_slist_append(ti
->class->interfaces
, new_iface
);
268 static void object_property_free(gpointer data
)
270 ObjectProperty
*prop
= data
;
273 qobject_unref(prop
->defval
);
278 g_free(prop
->description
);
282 static void type_initialize(TypeImpl
*ti
)
290 ti
->class_size
= type_class_get_size(ti
);
291 ti
->instance_size
= type_object_get_size(ti
);
292 /* Any type with zero instance_size is implicitly abstract.
293 * This means interface types are all abstract.
295 if (ti
->instance_size
== 0) {
298 if (type_is_ancestor(ti
, type_interface
)) {
299 assert(ti
->instance_size
== 0);
300 assert(ti
->abstract
);
301 assert(!ti
->instance_init
);
302 assert(!ti
->instance_post_init
);
303 assert(!ti
->instance_finalize
);
304 assert(!ti
->num_interfaces
);
306 ti
->class = g_malloc0(ti
->class_size
);
308 parent
= type_get_parent(ti
);
310 type_initialize(parent
);
314 g_assert(parent
->class_size
<= ti
->class_size
);
315 g_assert(parent
->instance_size
<= ti
->instance_size
);
316 memcpy(ti
->class, parent
->class, parent
->class_size
);
317 ti
->class->interfaces
= NULL
;
319 for (e
= parent
->class->interfaces
; e
; e
= e
->next
) {
320 InterfaceClass
*iface
= e
->data
;
321 ObjectClass
*klass
= OBJECT_CLASS(iface
);
323 type_initialize_interface(ti
, iface
->interface_type
, klass
->type
);
326 for (i
= 0; i
< ti
->num_interfaces
; i
++) {
327 TypeImpl
*t
= type_get_by_name(ti
->interfaces
[i
].typename
);
329 error_report("missing interface '%s' for object '%s'",
330 ti
->interfaces
[i
].typename
, parent
->name
);
333 for (e
= ti
->class->interfaces
; e
; e
= e
->next
) {
334 TypeImpl
*target_type
= OBJECT_CLASS(e
->data
)->type
;
336 if (type_is_ancestor(target_type
, t
)) {
345 type_initialize_interface(ti
, t
, t
);
349 ti
->class->properties
= g_hash_table_new_full(g_str_hash
, g_str_equal
, NULL
,
350 object_property_free
);
352 ti
->class->type
= ti
;
355 if (parent
->class_base_init
) {
356 parent
->class_base_init(ti
->class, ti
->class_data
);
358 parent
= type_get_parent(parent
);
361 if (ti
->class_init
) {
362 ti
->class_init(ti
->class, ti
->class_data
);
366 static void object_init_with_type(Object
*obj
, TypeImpl
*ti
)
368 if (type_has_parent(ti
)) {
369 object_init_with_type(obj
, type_get_parent(ti
));
372 if (ti
->instance_init
) {
373 ti
->instance_init(obj
);
377 static void object_post_init_with_type(Object
*obj
, TypeImpl
*ti
)
379 if (ti
->instance_post_init
) {
380 ti
->instance_post_init(obj
);
383 if (type_has_parent(ti
)) {
384 object_post_init_with_type(obj
, type_get_parent(ti
));
388 void object_apply_global_props(Object
*obj
, const GPtrArray
*props
, Error
**errp
)
396 for (i
= 0; i
< props
->len
; i
++) {
397 GlobalProperty
*p
= g_ptr_array_index(props
, i
);
400 if (object_dynamic_cast(obj
, p
->driver
) == NULL
) {
403 if (p
->optional
&& !object_property_find(obj
, p
->property
, NULL
)) {
407 object_property_parse(obj
, p
->value
, p
->property
, &err
);
409 error_prepend(&err
, "can't apply global %s.%s=%s: ",
410 p
->driver
, p
->property
, p
->value
);
412 * If errp != NULL, propagate error and return.
413 * If errp == NULL, report a warning, but keep going
414 * with the remaining globals.
417 error_propagate(errp
, err
);
420 warn_report_err(err
);
427 * Global property defaults
428 * Slot 0: accelerator's global property defaults
429 * Slot 1: machine's global property defaults
430 * Slot 2: global properties from legacy command line option
431 * Each is a GPtrArray of of GlobalProperty.
432 * Applied in order, later entries override earlier ones.
434 static GPtrArray
*object_compat_props
[3];
437 * Retrieve @GPtrArray for global property defined with options
438 * other than "-global". These are generally used for syntactic
439 * sugar and legacy command line options.
441 void object_register_sugar_prop(const char *driver
, const char *prop
, const char *value
)
444 if (!object_compat_props
[2]) {
445 object_compat_props
[2] = g_ptr_array_new();
447 g
= g_new0(GlobalProperty
, 1);
448 g
->driver
= g_strdup(driver
);
449 g
->property
= g_strdup(prop
);
450 g
->value
= g_strdup(value
);
451 g_ptr_array_add(object_compat_props
[2], g
);
455 * Set machine's global property defaults to @compat_props.
456 * May be called at most once.
458 void object_set_machine_compat_props(GPtrArray
*compat_props
)
460 assert(!object_compat_props
[1]);
461 object_compat_props
[1] = compat_props
;
465 * Set accelerator's global property defaults to @compat_props.
466 * May be called at most once.
468 void object_set_accelerator_compat_props(GPtrArray
*compat_props
)
470 assert(!object_compat_props
[0]);
471 object_compat_props
[0] = compat_props
;
474 void object_apply_compat_props(Object
*obj
)
478 for (i
= 0; i
< ARRAY_SIZE(object_compat_props
); i
++) {
479 object_apply_global_props(obj
, object_compat_props
[i
],
480 i
== 2 ? &error_fatal
: &error_abort
);
484 static void object_class_property_init_all(Object
*obj
)
486 ObjectPropertyIterator iter
;
487 ObjectProperty
*prop
;
489 object_class_property_iter_init(&iter
, object_get_class(obj
));
490 while ((prop
= object_property_iter_next(&iter
))) {
492 prop
->init(obj
, prop
);
497 static void object_initialize_with_type(Object
*obj
, size_t size
, TypeImpl
*type
)
499 type_initialize(type
);
501 g_assert(type
->instance_size
>= sizeof(Object
));
502 g_assert(type
->abstract
== false);
503 g_assert(size
>= type
->instance_size
);
505 memset(obj
, 0, type
->instance_size
);
506 obj
->class = type
->class;
508 object_class_property_init_all(obj
);
509 obj
->properties
= g_hash_table_new_full(g_str_hash
, g_str_equal
,
510 NULL
, object_property_free
);
511 object_init_with_type(obj
, type
);
512 object_post_init_with_type(obj
, type
);
515 void object_initialize(void *data
, size_t size
, const char *typename
)
517 TypeImpl
*type
= type_get_by_name(typename
);
520 error_report("missing object type '%s'", typename
);
524 object_initialize_with_type(data
, size
, type
);
527 void object_initialize_child_with_props(Object
*parentobj
,
528 const char *propname
,
529 void *childobj
, size_t size
, const char *type
,
534 va_start(vargs
, errp
);
535 object_initialize_child_with_propsv(parentobj
, propname
,
536 childobj
, size
, type
, errp
, vargs
);
540 void object_initialize_child_with_propsv(Object
*parentobj
,
541 const char *propname
,
542 void *childobj
, size_t size
, const char *type
,
543 Error
**errp
, va_list vargs
)
545 Error
*local_err
= NULL
;
549 object_initialize(childobj
, size
, type
);
550 obj
= OBJECT(childobj
);
552 object_set_propv(obj
, &local_err
, vargs
);
557 object_property_add_child(parentobj
, propname
, obj
);
559 uc
= (UserCreatable
*)object_dynamic_cast(obj
, TYPE_USER_CREATABLE
);
561 user_creatable_complete(uc
, &local_err
);
563 object_unparent(obj
);
570 * We want @obj's reference to be 1 on success, 0 on failure.
571 * On success, it's 2: one taken by object_initialize(), and one
572 * by object_property_add_child().
573 * On failure in object_initialize() or earlier, it's 1.
574 * On failure afterwards, it's also 1: object_unparent() releases
575 * the reference taken by object_property_add_child().
579 error_propagate(errp
, local_err
);
582 void object_initialize_child_internal(Object
*parent
,
583 const char *propname
,
584 void *child
, size_t size
,
587 object_initialize_child_with_props(parent
, propname
, child
, size
, type
,
591 static inline bool object_property_is_child(ObjectProperty
*prop
)
593 return strstart(prop
->type
, "child<", NULL
);
596 static void object_property_del_all(Object
*obj
)
598 g_autoptr(GHashTable
) done
= g_hash_table_new(NULL
, NULL
);
599 ObjectProperty
*prop
;
600 ObjectPropertyIterator iter
;
605 object_property_iter_init(&iter
, obj
);
606 while ((prop
= object_property_iter_next(&iter
)) != NULL
) {
607 if (g_hash_table_add(done
, prop
)) {
609 prop
->release(obj
, prop
->name
, prop
->opaque
);
617 g_hash_table_unref(obj
->properties
);
620 static void object_property_del_child(Object
*obj
, Object
*child
)
622 ObjectProperty
*prop
;
626 g_hash_table_iter_init(&iter
, obj
->properties
);
627 while (g_hash_table_iter_next(&iter
, &key
, &value
)) {
629 if (object_property_is_child(prop
) && prop
->opaque
== child
) {
631 prop
->release(obj
, prop
->name
, prop
->opaque
);
632 prop
->release
= NULL
;
637 g_hash_table_iter_init(&iter
, obj
->properties
);
638 while (g_hash_table_iter_next(&iter
, &key
, &value
)) {
640 if (object_property_is_child(prop
) && prop
->opaque
== child
) {
641 g_hash_table_iter_remove(&iter
);
647 void object_unparent(Object
*obj
)
650 object_property_del_child(obj
->parent
, obj
);
654 static void object_deinit(Object
*obj
, TypeImpl
*type
)
656 if (type
->instance_finalize
) {
657 type
->instance_finalize(obj
);
660 if (type_has_parent(type
)) {
661 object_deinit(obj
, type_get_parent(type
));
665 static void object_finalize(void *data
)
668 TypeImpl
*ti
= obj
->class->type
;
670 object_property_del_all(obj
);
671 object_deinit(obj
, ti
);
673 g_assert(obj
->ref
== 0);
679 static Object
*object_new_with_type(Type type
)
683 g_assert(type
!= NULL
);
684 type_initialize(type
);
686 obj
= g_malloc(type
->instance_size
);
687 object_initialize_with_type(obj
, type
->instance_size
, type
);
693 Object
*object_new_with_class(ObjectClass
*klass
)
695 return object_new_with_type(klass
->type
);
698 Object
*object_new(const char *typename
)
700 TypeImpl
*ti
= type_get_by_name(typename
);
702 return object_new_with_type(ti
);
706 Object
*object_new_with_props(const char *typename
,
715 va_start(vargs
, errp
);
716 obj
= object_new_with_propv(typename
, parent
, id
, errp
, vargs
);
723 Object
*object_new_with_propv(const char *typename
,
731 Error
*local_err
= NULL
;
734 klass
= object_class_by_name(typename
);
736 error_setg(errp
, "invalid object type: %s", typename
);
740 if (object_class_is_abstract(klass
)) {
741 error_setg(errp
, "object type '%s' is abstract", typename
);
744 obj
= object_new_with_type(klass
->type
);
746 if (object_set_propv(obj
, &local_err
, vargs
) < 0) {
751 object_property_add_child(parent
, id
, obj
);
754 uc
= (UserCreatable
*)object_dynamic_cast(obj
, TYPE_USER_CREATABLE
);
756 user_creatable_complete(uc
, &local_err
);
759 object_unparent(obj
);
769 error_propagate(errp
, local_err
);
775 int object_set_props(Object
*obj
,
782 va_start(vargs
, errp
);
783 ret
= object_set_propv(obj
, errp
, vargs
);
790 int object_set_propv(Object
*obj
,
794 const char *propname
;
795 Error
*local_err
= NULL
;
797 propname
= va_arg(vargs
, char *);
798 while (propname
!= NULL
) {
799 const char *value
= va_arg(vargs
, char *);
801 g_assert(value
!= NULL
);
802 object_property_parse(obj
, value
, propname
, &local_err
);
804 error_propagate(errp
, local_err
);
807 propname
= va_arg(vargs
, char *);
814 Object
*object_dynamic_cast(Object
*obj
, const char *typename
)
816 if (obj
&& object_class_dynamic_cast(object_get_class(obj
), typename
)) {
823 Object
*object_dynamic_cast_assert(Object
*obj
, const char *typename
,
824 const char *file
, int line
, const char *func
)
826 trace_object_dynamic_cast_assert(obj
? obj
->class->type
->name
: "(null)",
827 typename
, file
, line
, func
);
829 #ifdef CONFIG_QOM_CAST_DEBUG
833 for (i
= 0; obj
&& i
< OBJECT_CLASS_CAST_CACHE
; i
++) {
834 if (atomic_read(&obj
->class->object_cast_cache
[i
]) == typename
) {
839 inst
= object_dynamic_cast(obj
, typename
);
842 fprintf(stderr
, "%s:%d:%s: Object %p is not an instance of type %s\n",
843 file
, line
, func
, obj
, typename
);
849 if (obj
&& obj
== inst
) {
850 for (i
= 1; i
< OBJECT_CLASS_CAST_CACHE
; i
++) {
851 atomic_set(&obj
->class->object_cast_cache
[i
- 1],
852 atomic_read(&obj
->class->object_cast_cache
[i
]));
854 atomic_set(&obj
->class->object_cast_cache
[i
- 1], typename
);
862 ObjectClass
*object_class_dynamic_cast(ObjectClass
*class,
863 const char *typename
)
865 ObjectClass
*ret
= NULL
;
866 TypeImpl
*target_type
;
873 /* A simple fast path that can trigger a lot for leaf classes. */
875 if (type
->name
== typename
) {
879 target_type
= type_get_by_name(typename
);
881 /* target class type unknown, so fail the cast */
885 if (type
->class->interfaces
&&
886 type_is_ancestor(target_type
, type_interface
)) {
890 for (i
= class->interfaces
; i
; i
= i
->next
) {
891 ObjectClass
*target_class
= i
->data
;
893 if (type_is_ancestor(target_class
->type
, target_type
)) {
899 /* The match was ambiguous, don't allow a cast */
903 } else if (type_is_ancestor(type
, target_type
)) {
910 ObjectClass
*object_class_dynamic_cast_assert(ObjectClass
*class,
911 const char *typename
,
912 const char *file
, int line
,
917 trace_object_class_dynamic_cast_assert(class ? class->type
->name
: "(null)",
918 typename
, file
, line
, func
);
920 #ifdef CONFIG_QOM_CAST_DEBUG
923 for (i
= 0; class && i
< OBJECT_CLASS_CAST_CACHE
; i
++) {
924 if (atomic_read(&class->class_cast_cache
[i
]) == typename
) {
930 if (!class || !class->interfaces
) {
935 ret
= object_class_dynamic_cast(class, typename
);
937 fprintf(stderr
, "%s:%d:%s: Object %p is not an instance of type %s\n",
938 file
, line
, func
, class, typename
);
942 #ifdef CONFIG_QOM_CAST_DEBUG
943 if (class && ret
== class) {
944 for (i
= 1; i
< OBJECT_CLASS_CAST_CACHE
; i
++) {
945 atomic_set(&class->class_cast_cache
[i
- 1],
946 atomic_read(&class->class_cast_cache
[i
]));
948 atomic_set(&class->class_cast_cache
[i
- 1], typename
);
955 const char *object_get_typename(const Object
*obj
)
957 return obj
->class->type
->name
;
960 ObjectClass
*object_get_class(Object
*obj
)
965 bool object_class_is_abstract(ObjectClass
*klass
)
967 return klass
->type
->abstract
;
970 const char *object_class_get_name(ObjectClass
*klass
)
972 return klass
->type
->name
;
975 ObjectClass
*object_class_by_name(const char *typename
)
977 TypeImpl
*type
= type_get_by_name(typename
);
983 type_initialize(type
);
988 ObjectClass
*module_object_class_by_name(const char *typename
)
992 oc
= object_class_by_name(typename
);
993 #ifdef CONFIG_MODULES
995 module_load_qom_one(typename
);
996 oc
= object_class_by_name(typename
);
1002 ObjectClass
*object_class_get_parent(ObjectClass
*class)
1004 TypeImpl
*type
= type_get_parent(class->type
);
1010 type_initialize(type
);
1015 typedef struct OCFData
1017 void (*fn
)(ObjectClass
*klass
, void *opaque
);
1018 const char *implements_type
;
1019 bool include_abstract
;
1023 static void object_class_foreach_tramp(gpointer key
, gpointer value
,
1026 OCFData
*data
= opaque
;
1027 TypeImpl
*type
= value
;
1030 type_initialize(type
);
1033 if (!data
->include_abstract
&& type
->abstract
) {
1037 if (data
->implements_type
&&
1038 !object_class_dynamic_cast(k
, data
->implements_type
)) {
1042 data
->fn(k
, data
->opaque
);
1045 void object_class_foreach(void (*fn
)(ObjectClass
*klass
, void *opaque
),
1046 const char *implements_type
, bool include_abstract
,
1049 OCFData data
= { fn
, implements_type
, include_abstract
, opaque
};
1051 enumerating_types
= true;
1052 g_hash_table_foreach(type_table_get(), object_class_foreach_tramp
, &data
);
1053 enumerating_types
= false;
1056 static int do_object_child_foreach(Object
*obj
,
1057 int (*fn
)(Object
*child
, void *opaque
),
1058 void *opaque
, bool recurse
)
1060 GHashTableIter iter
;
1061 ObjectProperty
*prop
;
1064 g_hash_table_iter_init(&iter
, obj
->properties
);
1065 while (g_hash_table_iter_next(&iter
, NULL
, (gpointer
*)&prop
)) {
1066 if (object_property_is_child(prop
)) {
1067 Object
*child
= prop
->opaque
;
1069 ret
= fn(child
, opaque
);
1074 ret
= do_object_child_foreach(child
, fn
, opaque
, true);
1084 int object_child_foreach(Object
*obj
, int (*fn
)(Object
*child
, void *opaque
),
1087 return do_object_child_foreach(obj
, fn
, opaque
, false);
1090 int object_child_foreach_recursive(Object
*obj
,
1091 int (*fn
)(Object
*child
, void *opaque
),
1094 return do_object_child_foreach(obj
, fn
, opaque
, true);
1097 static void object_class_get_list_tramp(ObjectClass
*klass
, void *opaque
)
1099 GSList
**list
= opaque
;
1101 *list
= g_slist_prepend(*list
, klass
);
1104 GSList
*object_class_get_list(const char *implements_type
,
1105 bool include_abstract
)
1107 GSList
*list
= NULL
;
1109 object_class_foreach(object_class_get_list_tramp
,
1110 implements_type
, include_abstract
, &list
);
1114 static gint
object_class_cmp(gconstpointer a
, gconstpointer b
)
1116 return strcasecmp(object_class_get_name((ObjectClass
*)a
),
1117 object_class_get_name((ObjectClass
*)b
));
1120 GSList
*object_class_get_list_sorted(const char *implements_type
,
1121 bool include_abstract
)
1123 return g_slist_sort(object_class_get_list(implements_type
, include_abstract
),
1127 Object
*object_ref(Object
*obj
)
1132 atomic_inc(&obj
->ref
);
1136 void object_unref(Object
*obj
)
1141 g_assert(obj
->ref
> 0);
1143 /* parent always holds a reference to its children */
1144 if (atomic_fetch_dec(&obj
->ref
) == 1) {
1145 object_finalize(obj
);
1149 static ObjectProperty
*
1150 object_property_try_add(Object
*obj
, const char *name
, const char *type
,
1151 ObjectPropertyAccessor
*get
,
1152 ObjectPropertyAccessor
*set
,
1153 ObjectPropertyRelease
*release
,
1154 void *opaque
, Error
**errp
)
1156 ObjectProperty
*prop
;
1157 size_t name_len
= strlen(name
);
1159 if (name_len
>= 3 && !memcmp(name
+ name_len
- 3, "[*]", 4)) {
1161 ObjectProperty
*ret
;
1162 char *name_no_array
= g_strdup(name
);
1164 name_no_array
[name_len
- 3] = '\0';
1165 for (i
= 0; ; ++i
) {
1166 char *full_name
= g_strdup_printf("%s[%d]", name_no_array
, i
);
1168 ret
= object_property_try_add(obj
, full_name
, type
, get
, set
,
1169 release
, opaque
, NULL
);
1175 g_free(name_no_array
);
1179 if (object_property_find(obj
, name
, NULL
) != NULL
) {
1180 error_setg(errp
, "attempt to add duplicate property '%s' to object (type '%s')",
1181 name
, object_get_typename(obj
));
1185 prop
= g_malloc0(sizeof(*prop
));
1187 prop
->name
= g_strdup(name
);
1188 prop
->type
= g_strdup(type
);
1192 prop
->release
= release
;
1193 prop
->opaque
= opaque
;
1195 g_hash_table_insert(obj
->properties
, prop
->name
, prop
);
1200 object_property_add(Object
*obj
, const char *name
, const char *type
,
1201 ObjectPropertyAccessor
*get
,
1202 ObjectPropertyAccessor
*set
,
1203 ObjectPropertyRelease
*release
,
1206 return object_property_try_add(obj
, name
, type
, get
, set
, release
,
1207 opaque
, &error_abort
);
1211 object_class_property_add(ObjectClass
*klass
,
1214 ObjectPropertyAccessor
*get
,
1215 ObjectPropertyAccessor
*set
,
1216 ObjectPropertyRelease
*release
,
1219 ObjectProperty
*prop
;
1221 assert(!object_class_property_find(klass
, name
, NULL
));
1223 prop
= g_malloc0(sizeof(*prop
));
1225 prop
->name
= g_strdup(name
);
1226 prop
->type
= g_strdup(type
);
1230 prop
->release
= release
;
1231 prop
->opaque
= opaque
;
1233 g_hash_table_insert(klass
->properties
, prop
->name
, prop
);
1238 ObjectProperty
*object_property_find(Object
*obj
, const char *name
,
1241 ObjectProperty
*prop
;
1242 ObjectClass
*klass
= object_get_class(obj
);
1244 prop
= object_class_property_find(klass
, name
, NULL
);
1249 prop
= g_hash_table_lookup(obj
->properties
, name
);
1254 error_setg(errp
, "Property '.%s' not found", name
);
1258 void object_property_iter_init(ObjectPropertyIterator
*iter
,
1261 g_hash_table_iter_init(&iter
->iter
, obj
->properties
);
1262 iter
->nextclass
= object_get_class(obj
);
1265 ObjectProperty
*object_property_iter_next(ObjectPropertyIterator
*iter
)
1268 while (!g_hash_table_iter_next(&iter
->iter
, &key
, &val
)) {
1269 if (!iter
->nextclass
) {
1272 g_hash_table_iter_init(&iter
->iter
, iter
->nextclass
->properties
);
1273 iter
->nextclass
= object_class_get_parent(iter
->nextclass
);
1278 void object_class_property_iter_init(ObjectPropertyIterator
*iter
,
1281 g_hash_table_iter_init(&iter
->iter
, klass
->properties
);
1282 iter
->nextclass
= object_class_get_parent(klass
);
1285 ObjectProperty
*object_class_property_find(ObjectClass
*klass
, const char *name
,
1288 ObjectProperty
*prop
;
1289 ObjectClass
*parent_klass
;
1291 parent_klass
= object_class_get_parent(klass
);
1293 prop
= object_class_property_find(parent_klass
, name
, NULL
);
1299 prop
= g_hash_table_lookup(klass
->properties
, name
);
1301 error_setg(errp
, "Property '.%s' not found", name
);
1306 void object_property_del(Object
*obj
, const char *name
)
1308 ObjectProperty
*prop
= g_hash_table_lookup(obj
->properties
, name
);
1310 if (prop
->release
) {
1311 prop
->release(obj
, name
, prop
->opaque
);
1313 g_hash_table_remove(obj
->properties
, name
);
1316 void object_property_get(Object
*obj
, Visitor
*v
, const char *name
,
1319 ObjectProperty
*prop
= object_property_find(obj
, name
, errp
);
1325 error_setg(errp
, QERR_PERMISSION_DENIED
);
1327 prop
->get(obj
, v
, name
, prop
->opaque
, errp
);
1331 void object_property_set(Object
*obj
, Visitor
*v
, const char *name
,
1334 ObjectProperty
*prop
= object_property_find(obj
, name
, errp
);
1340 error_setg(errp
, QERR_PERMISSION_DENIED
);
1342 prop
->set(obj
, v
, name
, prop
->opaque
, errp
);
1346 void object_property_set_str(Object
*obj
, const char *value
,
1347 const char *name
, Error
**errp
)
1349 QString
*qstr
= qstring_from_str(value
);
1350 object_property_set_qobject(obj
, QOBJECT(qstr
), name
, errp
);
1352 qobject_unref(qstr
);
1355 char *object_property_get_str(Object
*obj
, const char *name
,
1358 QObject
*ret
= object_property_get_qobject(obj
, name
, errp
);
1365 retval
= g_strdup(qobject_get_try_str(ret
));
1367 error_setg(errp
, QERR_INVALID_PARAMETER_TYPE
, name
, "string");
1374 void object_property_set_link(Object
*obj
, Object
*value
,
1375 const char *name
, Error
**errp
)
1378 char *path
= object_get_canonical_path(value
);
1379 object_property_set_str(obj
, path
, name
, errp
);
1382 object_property_set_str(obj
, "", name
, errp
);
1386 Object
*object_property_get_link(Object
*obj
, const char *name
,
1389 char *str
= object_property_get_str(obj
, name
, errp
);
1390 Object
*target
= NULL
;
1393 target
= object_resolve_path(str
, NULL
);
1395 error_set(errp
, ERROR_CLASS_DEVICE_NOT_FOUND
,
1396 "Device '%s' not found", str
);
1404 void object_property_set_bool(Object
*obj
, bool value
,
1405 const char *name
, Error
**errp
)
1407 QBool
*qbool
= qbool_from_bool(value
);
1408 object_property_set_qobject(obj
, QOBJECT(qbool
), name
, errp
);
1410 qobject_unref(qbool
);
1413 bool object_property_get_bool(Object
*obj
, const char *name
,
1416 QObject
*ret
= object_property_get_qobject(obj
, name
, errp
);
1423 qbool
= qobject_to(QBool
, ret
);
1425 error_setg(errp
, QERR_INVALID_PARAMETER_TYPE
, name
, "boolean");
1428 retval
= qbool_get_bool(qbool
);
1435 void object_property_set_int(Object
*obj
, int64_t value
,
1436 const char *name
, Error
**errp
)
1438 QNum
*qnum
= qnum_from_int(value
);
1439 object_property_set_qobject(obj
, QOBJECT(qnum
), name
, errp
);
1441 qobject_unref(qnum
);
1444 int64_t object_property_get_int(Object
*obj
, const char *name
,
1447 QObject
*ret
= object_property_get_qobject(obj
, name
, errp
);
1455 qnum
= qobject_to(QNum
, ret
);
1456 if (!qnum
|| !qnum_get_try_int(qnum
, &retval
)) {
1457 error_setg(errp
, QERR_INVALID_PARAMETER_TYPE
, name
, "int");
1465 static void object_property_init_defval(Object
*obj
, ObjectProperty
*prop
)
1467 Visitor
*v
= qobject_input_visitor_new(prop
->defval
);
1469 assert(prop
->set
!= NULL
);
1470 prop
->set(obj
, v
, prop
->name
, prop
->opaque
, &error_abort
);
1475 static void object_property_set_default(ObjectProperty
*prop
, QObject
*defval
)
1477 assert(!prop
->defval
);
1478 assert(!prop
->init
);
1480 prop
->defval
= defval
;
1481 prop
->init
= object_property_init_defval
;
1484 void object_property_set_default_bool(ObjectProperty
*prop
, bool value
)
1486 object_property_set_default(prop
, QOBJECT(qbool_from_bool(value
)));
1489 void object_property_set_default_str(ObjectProperty
*prop
, const char *value
)
1491 object_property_set_default(prop
, QOBJECT(qstring_from_str(value
)));
1494 void object_property_set_default_int(ObjectProperty
*prop
, int64_t value
)
1496 object_property_set_default(prop
, QOBJECT(qnum_from_int(value
)));
1499 void object_property_set_default_uint(ObjectProperty
*prop
, uint64_t value
)
1501 object_property_set_default(prop
, QOBJECT(qnum_from_uint(value
)));
1504 void object_property_set_uint(Object
*obj
, uint64_t value
,
1505 const char *name
, Error
**errp
)
1507 QNum
*qnum
= qnum_from_uint(value
);
1509 object_property_set_qobject(obj
, QOBJECT(qnum
), name
, errp
);
1510 qobject_unref(qnum
);
1513 uint64_t object_property_get_uint(Object
*obj
, const char *name
,
1516 QObject
*ret
= object_property_get_qobject(obj
, name
, errp
);
1523 qnum
= qobject_to(QNum
, ret
);
1524 if (!qnum
|| !qnum_get_try_uint(qnum
, &retval
)) {
1525 error_setg(errp
, QERR_INVALID_PARAMETER_TYPE
, name
, "uint");
1533 typedef struct EnumProperty
{
1534 const QEnumLookup
*lookup
;
1535 int (*get
)(Object
*, Error
**);
1536 void (*set
)(Object
*, int, Error
**);
1539 int object_property_get_enum(Object
*obj
, const char *name
,
1540 const char *typename
, Error
**errp
)
1544 ObjectProperty
*prop
= object_property_find(obj
, name
, errp
);
1545 EnumProperty
*enumprop
;
1551 if (!g_str_equal(prop
->type
, typename
)) {
1552 error_setg(errp
, "Property %s on %s is not '%s' enum type",
1553 name
, object_class_get_name(
1554 object_get_class(obj
)), typename
);
1558 enumprop
= prop
->opaque
;
1560 str
= object_property_get_str(obj
, name
, errp
);
1565 ret
= qapi_enum_parse(enumprop
->lookup
, str
, -1, errp
);
1571 void object_property_parse(Object
*obj
, const char *string
,
1572 const char *name
, Error
**errp
)
1574 Visitor
*v
= string_input_visitor_new(string
);
1575 object_property_set(obj
, v
, name
, errp
);
1579 char *object_property_print(Object
*obj
, const char *name
, bool human
,
1583 char *string
= NULL
;
1584 Error
*local_err
= NULL
;
1586 v
= string_output_visitor_new(human
, &string
);
1587 object_property_get(obj
, v
, name
, &local_err
);
1589 error_propagate(errp
, local_err
);
1593 visit_complete(v
, &string
);
1600 const char *object_property_get_type(Object
*obj
, const char *name
, Error
**errp
)
1602 ObjectProperty
*prop
= object_property_find(obj
, name
, errp
);
1610 Object
*object_get_root(void)
1612 static Object
*root
;
1615 root
= object_new("container");
1621 Object
*object_get_objects_root(void)
1623 return container_get(object_get_root(), "/objects");
1626 Object
*object_get_internal_root(void)
1628 static Object
*internal_root
;
1630 if (!internal_root
) {
1631 internal_root
= object_new("container");
1634 return internal_root
;
1637 static void object_get_child_property(Object
*obj
, Visitor
*v
,
1638 const char *name
, void *opaque
,
1641 Object
*child
= opaque
;
1644 path
= object_get_canonical_path(child
);
1645 visit_type_str(v
, name
, &path
, errp
);
1649 static Object
*object_resolve_child_property(Object
*parent
, void *opaque
,
1655 static void object_finalize_child_property(Object
*obj
, const char *name
,
1658 Object
*child
= opaque
;
1660 if (child
->class->unparent
) {
1661 (child
->class->unparent
)(child
);
1663 child
->parent
= NULL
;
1664 object_unref(child
);
1668 object_property_add_child(Object
*obj
, const char *name
,
1671 g_autofree
char *type
= NULL
;
1674 assert(!child
->parent
);
1676 type
= g_strdup_printf("child<%s>", object_get_typename(child
));
1678 op
= object_property_add(obj
, name
, type
, object_get_child_property
, NULL
,
1679 object_finalize_child_property
, child
);
1680 op
->resolve
= object_resolve_child_property
;
1682 child
->parent
= obj
;
1686 void object_property_allow_set_link(const Object
*obj
, const char *name
,
1687 Object
*val
, Error
**errp
)
1689 /* Allow the link to be set, always */
1695 Object
*target
; /* if OBJ_PROP_LINK_DIRECT, when holding the pointer */
1696 ptrdiff_t offset
; /* if OBJ_PROP_LINK_CLASS */
1698 void (*check
)(const Object
*, const char *, Object
*, Error
**);
1699 ObjectPropertyLinkFlags flags
;
1703 object_link_get_targetp(Object
*obj
, LinkProperty
*lprop
)
1705 if (lprop
->flags
& OBJ_PROP_LINK_DIRECT
) {
1706 return &lprop
->target
;
1707 } else if (lprop
->flags
& OBJ_PROP_LINK_CLASS
) {
1708 return (void *)obj
+ lprop
->offset
;
1710 return lprop
->targetp
;
1714 static void object_get_link_property(Object
*obj
, Visitor
*v
,
1715 const char *name
, void *opaque
,
1718 LinkProperty
*lprop
= opaque
;
1719 Object
**targetp
= object_link_get_targetp(obj
, lprop
);
1723 path
= object_get_canonical_path(*targetp
);
1724 visit_type_str(v
, name
, &path
, errp
);
1728 visit_type_str(v
, name
, &path
, errp
);
1733 * object_resolve_link:
1735 * Lookup an object and ensure its type matches the link property type. This
1736 * is similar to object_resolve_path() except type verification against the
1737 * link property is performed.
1739 * Returns: The matched object or NULL on path lookup failures.
1741 static Object
*object_resolve_link(Object
*obj
, const char *name
,
1742 const char *path
, Error
**errp
)
1746 bool ambiguous
= false;
1749 /* Go from link<FOO> to FOO. */
1750 type
= object_property_get_type(obj
, name
, NULL
);
1751 target_type
= g_strndup(&type
[5], strlen(type
) - 6);
1752 target
= object_resolve_path_type(path
, target_type
, &ambiguous
);
1755 error_setg(errp
, "Path '%s' does not uniquely identify an object",
1757 } else if (!target
) {
1758 target
= object_resolve_path(path
, &ambiguous
);
1759 if (target
|| ambiguous
) {
1760 error_setg(errp
, QERR_INVALID_PARAMETER_TYPE
, name
, target_type
);
1762 error_set(errp
, ERROR_CLASS_DEVICE_NOT_FOUND
,
1763 "Device '%s' not found", path
);
1767 g_free(target_type
);
1772 static void object_set_link_property(Object
*obj
, Visitor
*v
,
1773 const char *name
, void *opaque
,
1776 Error
*local_err
= NULL
;
1777 LinkProperty
*prop
= opaque
;
1778 Object
**targetp
= object_link_get_targetp(obj
, prop
);
1779 Object
*old_target
= *targetp
;
1780 Object
*new_target
= NULL
;
1783 visit_type_str(v
, name
, &path
, &local_err
);
1785 if (!local_err
&& strcmp(path
, "") != 0) {
1786 new_target
= object_resolve_link(obj
, name
, path
, &local_err
);
1791 error_propagate(errp
, local_err
);
1795 prop
->check(obj
, name
, new_target
, &local_err
);
1797 error_propagate(errp
, local_err
);
1801 *targetp
= new_target
;
1802 if (prop
->flags
& OBJ_PROP_LINK_STRONG
) {
1803 object_ref(new_target
);
1804 object_unref(old_target
);
1808 static Object
*object_resolve_link_property(Object
*parent
, void *opaque
,
1811 LinkProperty
*lprop
= opaque
;
1813 return *object_link_get_targetp(parent
, lprop
);
1816 static void object_release_link_property(Object
*obj
, const char *name
,
1819 LinkProperty
*prop
= opaque
;
1820 Object
**targetp
= object_link_get_targetp(obj
, prop
);
1822 if ((prop
->flags
& OBJ_PROP_LINK_STRONG
) && *targetp
) {
1823 object_unref(*targetp
);
1825 if (!(prop
->flags
& OBJ_PROP_LINK_CLASS
)) {
1830 static ObjectProperty
*
1831 object_add_link_prop(Object
*obj
, const char *name
,
1832 const char *type
, void *ptr
,
1833 void (*check
)(const Object
*, const char *,
1834 Object
*, Error
**),
1835 ObjectPropertyLinkFlags flags
)
1837 LinkProperty
*prop
= g_malloc(sizeof(*prop
));
1838 g_autofree
char *full_type
= NULL
;
1841 if (flags
& OBJ_PROP_LINK_DIRECT
) {
1844 prop
->targetp
= ptr
;
1846 prop
->check
= check
;
1847 prop
->flags
= flags
;
1849 full_type
= g_strdup_printf("link<%s>", type
);
1851 op
= object_property_add(obj
, name
, full_type
,
1852 object_get_link_property
,
1853 check
? object_set_link_property
: NULL
,
1854 object_release_link_property
,
1856 op
->resolve
= object_resolve_link_property
;
1861 object_property_add_link(Object
*obj
, const char *name
,
1862 const char *type
, Object
**targetp
,
1863 void (*check
)(const Object
*, const char *,
1864 Object
*, Error
**),
1865 ObjectPropertyLinkFlags flags
)
1867 return object_add_link_prop(obj
, name
, type
, targetp
, check
, flags
);
1871 object_class_property_add_link(ObjectClass
*oc
,
1873 const char *type
, ptrdiff_t offset
,
1874 void (*check
)(const Object
*obj
, const char *name
,
1875 Object
*val
, Error
**errp
),
1876 ObjectPropertyLinkFlags flags
)
1878 LinkProperty
*prop
= g_new0(LinkProperty
, 1);
1882 prop
->offset
= offset
;
1883 prop
->check
= check
;
1884 prop
->flags
= flags
| OBJ_PROP_LINK_CLASS
;
1886 full_type
= g_strdup_printf("link<%s>", type
);
1888 op
= object_class_property_add(oc
, name
, full_type
,
1889 object_get_link_property
,
1890 check
? object_set_link_property
: NULL
,
1891 object_release_link_property
,
1894 op
->resolve
= object_resolve_link_property
;
1901 object_property_add_const_link(Object
*obj
, const char *name
,
1904 return object_add_link_prop(obj
, name
,
1905 object_get_typename(target
), target
,
1906 NULL
, OBJ_PROP_LINK_DIRECT
);
1909 char *object_get_canonical_path_component(const Object
*obj
)
1911 ObjectProperty
*prop
= NULL
;
1912 GHashTableIter iter
;
1914 if (obj
->parent
== NULL
) {
1918 g_hash_table_iter_init(&iter
, obj
->parent
->properties
);
1919 while (g_hash_table_iter_next(&iter
, NULL
, (gpointer
*)&prop
)) {
1920 if (!object_property_is_child(prop
)) {
1924 if (prop
->opaque
== obj
) {
1925 return g_strdup(prop
->name
);
1929 /* obj had a parent but was not a child, should never happen */
1930 g_assert_not_reached();
1934 char *object_get_canonical_path(const Object
*obj
)
1936 Object
*root
= object_get_root();
1937 char *newpath
, *path
= NULL
;
1940 return g_strdup("/");
1944 char *component
= object_get_canonical_path_component(obj
);
1947 /* A canonical path must be complete, so discard what was
1954 newpath
= g_strdup_printf("/%s%s", component
, path
? path
: "");
1959 } while (obj
!= root
);
1964 Object
*object_resolve_path_component(Object
*parent
, const char *part
)
1966 ObjectProperty
*prop
= object_property_find(parent
, part
, NULL
);
1971 if (prop
->resolve
) {
1972 return prop
->resolve(parent
, prop
->opaque
, part
);
1978 static Object
*object_resolve_abs_path(Object
*parent
,
1980 const char *typename
)
1984 if (*parts
== NULL
) {
1985 return object_dynamic_cast(parent
, typename
);
1988 if (strcmp(*parts
, "") == 0) {
1989 return object_resolve_abs_path(parent
, parts
+ 1, typename
);
1992 child
= object_resolve_path_component(parent
, *parts
);
1997 return object_resolve_abs_path(child
, parts
+ 1, typename
);
2000 static Object
*object_resolve_partial_path(Object
*parent
,
2002 const char *typename
,
2006 GHashTableIter iter
;
2007 ObjectProperty
*prop
;
2009 obj
= object_resolve_abs_path(parent
, parts
, typename
);
2011 g_hash_table_iter_init(&iter
, parent
->properties
);
2012 while (g_hash_table_iter_next(&iter
, NULL
, (gpointer
*)&prop
)) {
2015 if (!object_property_is_child(prop
)) {
2019 found
= object_resolve_partial_path(prop
->opaque
, parts
,
2020 typename
, ambiguous
);
2037 Object
*object_resolve_path_type(const char *path
, const char *typename
,
2043 parts
= g_strsplit(path
, "/", 0);
2046 if (parts
[0] == NULL
|| strcmp(parts
[0], "") != 0) {
2047 bool ambiguous
= false;
2048 obj
= object_resolve_partial_path(object_get_root(), parts
,
2049 typename
, &ambiguous
);
2051 *ambiguousp
= ambiguous
;
2054 obj
= object_resolve_abs_path(object_get_root(), parts
+ 1, typename
);
2062 Object
*object_resolve_path(const char *path
, bool *ambiguous
)
2064 return object_resolve_path_type(path
, TYPE_OBJECT
, ambiguous
);
2067 typedef struct StringProperty
2069 char *(*get
)(Object
*, Error
**);
2070 void (*set
)(Object
*, const char *, Error
**);
2073 static void property_get_str(Object
*obj
, Visitor
*v
, const char *name
,
2074 void *opaque
, Error
**errp
)
2076 StringProperty
*prop
= opaque
;
2080 value
= prop
->get(obj
, &err
);
2082 error_propagate(errp
, err
);
2086 visit_type_str(v
, name
, &value
, errp
);
2090 static void property_set_str(Object
*obj
, Visitor
*v
, const char *name
,
2091 void *opaque
, Error
**errp
)
2093 StringProperty
*prop
= opaque
;
2095 Error
*local_err
= NULL
;
2097 visit_type_str(v
, name
, &value
, &local_err
);
2099 error_propagate(errp
, local_err
);
2103 prop
->set(obj
, value
, errp
);
2107 static void property_release_str(Object
*obj
, const char *name
,
2110 StringProperty
*prop
= opaque
;
2115 object_property_add_str(Object
*obj
, const char *name
,
2116 char *(*get
)(Object
*, Error
**),
2117 void (*set
)(Object
*, const char *, Error
**))
2119 StringProperty
*prop
= g_malloc0(sizeof(*prop
));
2124 return object_property_add(obj
, name
, "string",
2125 get
? property_get_str
: NULL
,
2126 set
? property_set_str
: NULL
,
2127 property_release_str
,
2132 object_class_property_add_str(ObjectClass
*klass
, const char *name
,
2133 char *(*get
)(Object
*, Error
**),
2134 void (*set
)(Object
*, const char *,
2137 StringProperty
*prop
= g_malloc0(sizeof(*prop
));
2142 return object_class_property_add(klass
, name
, "string",
2143 get
? property_get_str
: NULL
,
2144 set
? property_set_str
: NULL
,
2149 typedef struct BoolProperty
2151 bool (*get
)(Object
*, Error
**);
2152 void (*set
)(Object
*, bool, Error
**);
2155 static void property_get_bool(Object
*obj
, Visitor
*v
, const char *name
,
2156 void *opaque
, Error
**errp
)
2158 BoolProperty
*prop
= opaque
;
2162 value
= prop
->get(obj
, &err
);
2164 error_propagate(errp
, err
);
2168 visit_type_bool(v
, name
, &value
, errp
);
2171 static void property_set_bool(Object
*obj
, Visitor
*v
, const char *name
,
2172 void *opaque
, Error
**errp
)
2174 BoolProperty
*prop
= opaque
;
2176 Error
*local_err
= NULL
;
2178 visit_type_bool(v
, name
, &value
, &local_err
);
2180 error_propagate(errp
, local_err
);
2184 prop
->set(obj
, value
, errp
);
2187 static void property_release_bool(Object
*obj
, const char *name
,
2190 BoolProperty
*prop
= opaque
;
2195 object_property_add_bool(Object
*obj
, const char *name
,
2196 bool (*get
)(Object
*, Error
**),
2197 void (*set
)(Object
*, bool, Error
**))
2199 BoolProperty
*prop
= g_malloc0(sizeof(*prop
));
2204 return object_property_add(obj
, name
, "bool",
2205 get
? property_get_bool
: NULL
,
2206 set
? property_set_bool
: NULL
,
2207 property_release_bool
,
2212 object_class_property_add_bool(ObjectClass
*klass
, const char *name
,
2213 bool (*get
)(Object
*, Error
**),
2214 void (*set
)(Object
*, bool, Error
**))
2216 BoolProperty
*prop
= g_malloc0(sizeof(*prop
));
2221 return object_class_property_add(klass
, name
, "bool",
2222 get
? property_get_bool
: NULL
,
2223 set
? property_set_bool
: NULL
,
2228 static void property_get_enum(Object
*obj
, Visitor
*v
, const char *name
,
2229 void *opaque
, Error
**errp
)
2231 EnumProperty
*prop
= opaque
;
2235 value
= prop
->get(obj
, &err
);
2237 error_propagate(errp
, err
);
2241 visit_type_enum(v
, name
, &value
, prop
->lookup
, errp
);
2244 static void property_set_enum(Object
*obj
, Visitor
*v
, const char *name
,
2245 void *opaque
, Error
**errp
)
2247 EnumProperty
*prop
= opaque
;
2251 visit_type_enum(v
, name
, &value
, prop
->lookup
, &err
);
2253 error_propagate(errp
, err
);
2256 prop
->set(obj
, value
, errp
);
2259 static void property_release_enum(Object
*obj
, const char *name
,
2262 EnumProperty
*prop
= opaque
;
2267 object_property_add_enum(Object
*obj
, const char *name
,
2268 const char *typename
,
2269 const QEnumLookup
*lookup
,
2270 int (*get
)(Object
*, Error
**),
2271 void (*set
)(Object
*, int, Error
**))
2273 EnumProperty
*prop
= g_malloc(sizeof(*prop
));
2275 prop
->lookup
= lookup
;
2279 return object_property_add(obj
, name
, typename
,
2280 get
? property_get_enum
: NULL
,
2281 set
? property_set_enum
: NULL
,
2282 property_release_enum
,
2287 object_class_property_add_enum(ObjectClass
*klass
, const char *name
,
2288 const char *typename
,
2289 const QEnumLookup
*lookup
,
2290 int (*get
)(Object
*, Error
**),
2291 void (*set
)(Object
*, int, Error
**))
2293 EnumProperty
*prop
= g_malloc(sizeof(*prop
));
2295 prop
->lookup
= lookup
;
2299 return object_class_property_add(klass
, name
, typename
,
2300 get
? property_get_enum
: NULL
,
2301 set
? property_set_enum
: NULL
,
2306 typedef struct TMProperty
{
2307 void (*get
)(Object
*, struct tm
*, Error
**);
2310 static void property_get_tm(Object
*obj
, Visitor
*v
, const char *name
,
2311 void *opaque
, Error
**errp
)
2313 TMProperty
*prop
= opaque
;
2317 prop
->get(obj
, &value
, &err
);
2322 visit_start_struct(v
, name
, NULL
, 0, &err
);
2326 visit_type_int32(v
, "tm_year", &value
.tm_year
, &err
);
2330 visit_type_int32(v
, "tm_mon", &value
.tm_mon
, &err
);
2334 visit_type_int32(v
, "tm_mday", &value
.tm_mday
, &err
);
2338 visit_type_int32(v
, "tm_hour", &value
.tm_hour
, &err
);
2342 visit_type_int32(v
, "tm_min", &value
.tm_min
, &err
);
2346 visit_type_int32(v
, "tm_sec", &value
.tm_sec
, &err
);
2350 visit_check_struct(v
, &err
);
2352 visit_end_struct(v
, NULL
);
2354 error_propagate(errp
, err
);
2358 static void property_release_tm(Object
*obj
, const char *name
,
2361 TMProperty
*prop
= opaque
;
2366 object_property_add_tm(Object
*obj
, const char *name
,
2367 void (*get
)(Object
*, struct tm
*, Error
**))
2369 TMProperty
*prop
= g_malloc0(sizeof(*prop
));
2373 return object_property_add(obj
, name
, "struct tm",
2374 get
? property_get_tm
: NULL
, NULL
,
2375 property_release_tm
,
2380 object_class_property_add_tm(ObjectClass
*klass
, const char *name
,
2381 void (*get
)(Object
*, struct tm
*, Error
**))
2383 TMProperty
*prop
= g_malloc0(sizeof(*prop
));
2387 return object_class_property_add(klass
, name
, "struct tm",
2388 get
? property_get_tm
: NULL
,
2392 static char *qdev_get_type(Object
*obj
, Error
**errp
)
2394 return g_strdup(object_get_typename(obj
));
2397 static void property_get_uint8_ptr(Object
*obj
, Visitor
*v
, const char *name
,
2398 void *opaque
, Error
**errp
)
2400 uint8_t value
= *(uint8_t *)opaque
;
2401 visit_type_uint8(v
, name
, &value
, errp
);
2404 static void property_set_uint8_ptr(Object
*obj
, Visitor
*v
, const char *name
,
2405 void *opaque
, Error
**errp
)
2407 uint8_t *field
= opaque
;
2409 Error
*local_err
= NULL
;
2411 visit_type_uint8(v
, name
, &value
, &local_err
);
2413 error_propagate(errp
, local_err
);
2420 static void property_get_uint16_ptr(Object
*obj
, Visitor
*v
, const char *name
,
2421 void *opaque
, Error
**errp
)
2423 uint16_t value
= *(uint16_t *)opaque
;
2424 visit_type_uint16(v
, name
, &value
, errp
);
2427 static void property_set_uint16_ptr(Object
*obj
, Visitor
*v
, const char *name
,
2428 void *opaque
, Error
**errp
)
2430 uint16_t *field
= opaque
;
2432 Error
*local_err
= NULL
;
2434 visit_type_uint16(v
, name
, &value
, &local_err
);
2436 error_propagate(errp
, local_err
);
2443 static void property_get_uint32_ptr(Object
*obj
, Visitor
*v
, const char *name
,
2444 void *opaque
, Error
**errp
)
2446 uint32_t value
= *(uint32_t *)opaque
;
2447 visit_type_uint32(v
, name
, &value
, errp
);
2450 static void property_set_uint32_ptr(Object
*obj
, Visitor
*v
, const char *name
,
2451 void *opaque
, Error
**errp
)
2453 uint32_t *field
= opaque
;
2455 Error
*local_err
= NULL
;
2457 visit_type_uint32(v
, name
, &value
, &local_err
);
2459 error_propagate(errp
, local_err
);
2466 static void property_get_uint64_ptr(Object
*obj
, Visitor
*v
, const char *name
,
2467 void *opaque
, Error
**errp
)
2469 uint64_t value
= *(uint64_t *)opaque
;
2470 visit_type_uint64(v
, name
, &value
, errp
);
2473 static void property_set_uint64_ptr(Object
*obj
, Visitor
*v
, const char *name
,
2474 void *opaque
, Error
**errp
)
2476 uint64_t *field
= opaque
;
2478 Error
*local_err
= NULL
;
2480 visit_type_uint64(v
, name
, &value
, &local_err
);
2482 error_propagate(errp
, local_err
);
2490 object_property_add_uint8_ptr(Object
*obj
, const char *name
,
2492 ObjectPropertyFlags flags
)
2494 ObjectPropertyAccessor
*getter
= NULL
;
2495 ObjectPropertyAccessor
*setter
= NULL
;
2497 if ((flags
& OBJ_PROP_FLAG_READ
) == OBJ_PROP_FLAG_READ
) {
2498 getter
= property_get_uint8_ptr
;
2501 if ((flags
& OBJ_PROP_FLAG_WRITE
) == OBJ_PROP_FLAG_WRITE
) {
2502 setter
= property_set_uint8_ptr
;
2505 return object_property_add(obj
, name
, "uint8",
2506 getter
, setter
, NULL
, (void *)v
);
2510 object_class_property_add_uint8_ptr(ObjectClass
*klass
, const char *name
,
2512 ObjectPropertyFlags flags
)
2514 ObjectPropertyAccessor
*getter
= NULL
;
2515 ObjectPropertyAccessor
*setter
= NULL
;
2517 if ((flags
& OBJ_PROP_FLAG_READ
) == OBJ_PROP_FLAG_READ
) {
2518 getter
= property_get_uint8_ptr
;
2521 if ((flags
& OBJ_PROP_FLAG_WRITE
) == OBJ_PROP_FLAG_WRITE
) {
2522 setter
= property_set_uint8_ptr
;
2525 return object_class_property_add(klass
, name
, "uint8",
2526 getter
, setter
, NULL
, (void *)v
);
2530 object_property_add_uint16_ptr(Object
*obj
, const char *name
,
2532 ObjectPropertyFlags flags
)
2534 ObjectPropertyAccessor
*getter
= NULL
;
2535 ObjectPropertyAccessor
*setter
= NULL
;
2537 if ((flags
& OBJ_PROP_FLAG_READ
) == OBJ_PROP_FLAG_READ
) {
2538 getter
= property_get_uint16_ptr
;
2541 if ((flags
& OBJ_PROP_FLAG_WRITE
) == OBJ_PROP_FLAG_WRITE
) {
2542 setter
= property_set_uint16_ptr
;
2545 return object_property_add(obj
, name
, "uint16",
2546 getter
, setter
, NULL
, (void *)v
);
2550 object_class_property_add_uint16_ptr(ObjectClass
*klass
, const char *name
,
2552 ObjectPropertyFlags flags
)
2554 ObjectPropertyAccessor
*getter
= NULL
;
2555 ObjectPropertyAccessor
*setter
= NULL
;
2557 if ((flags
& OBJ_PROP_FLAG_READ
) == OBJ_PROP_FLAG_READ
) {
2558 getter
= property_get_uint16_ptr
;
2561 if ((flags
& OBJ_PROP_FLAG_WRITE
) == OBJ_PROP_FLAG_WRITE
) {
2562 setter
= property_set_uint16_ptr
;
2565 return object_class_property_add(klass
, name
, "uint16",
2566 getter
, setter
, NULL
, (void *)v
);
2570 object_property_add_uint32_ptr(Object
*obj
, const char *name
,
2572 ObjectPropertyFlags flags
)
2574 ObjectPropertyAccessor
*getter
= NULL
;
2575 ObjectPropertyAccessor
*setter
= NULL
;
2577 if ((flags
& OBJ_PROP_FLAG_READ
) == OBJ_PROP_FLAG_READ
) {
2578 getter
= property_get_uint32_ptr
;
2581 if ((flags
& OBJ_PROP_FLAG_WRITE
) == OBJ_PROP_FLAG_WRITE
) {
2582 setter
= property_set_uint32_ptr
;
2585 return object_property_add(obj
, name
, "uint32",
2586 getter
, setter
, NULL
, (void *)v
);
2590 object_class_property_add_uint32_ptr(ObjectClass
*klass
, const char *name
,
2592 ObjectPropertyFlags flags
)
2594 ObjectPropertyAccessor
*getter
= NULL
;
2595 ObjectPropertyAccessor
*setter
= NULL
;
2597 if ((flags
& OBJ_PROP_FLAG_READ
) == OBJ_PROP_FLAG_READ
) {
2598 getter
= property_get_uint32_ptr
;
2601 if ((flags
& OBJ_PROP_FLAG_WRITE
) == OBJ_PROP_FLAG_WRITE
) {
2602 setter
= property_set_uint32_ptr
;
2605 return object_class_property_add(klass
, name
, "uint32",
2606 getter
, setter
, NULL
, (void *)v
);
2610 object_property_add_uint64_ptr(Object
*obj
, const char *name
,
2612 ObjectPropertyFlags flags
)
2614 ObjectPropertyAccessor
*getter
= NULL
;
2615 ObjectPropertyAccessor
*setter
= NULL
;
2617 if ((flags
& OBJ_PROP_FLAG_READ
) == OBJ_PROP_FLAG_READ
) {
2618 getter
= property_get_uint64_ptr
;
2621 if ((flags
& OBJ_PROP_FLAG_WRITE
) == OBJ_PROP_FLAG_WRITE
) {
2622 setter
= property_set_uint64_ptr
;
2625 return object_property_add(obj
, name
, "uint64",
2626 getter
, setter
, NULL
, (void *)v
);
2630 object_class_property_add_uint64_ptr(ObjectClass
*klass
, const char *name
,
2632 ObjectPropertyFlags flags
)
2634 ObjectPropertyAccessor
*getter
= NULL
;
2635 ObjectPropertyAccessor
*setter
= NULL
;
2637 if ((flags
& OBJ_PROP_FLAG_READ
) == OBJ_PROP_FLAG_READ
) {
2638 getter
= property_get_uint64_ptr
;
2641 if ((flags
& OBJ_PROP_FLAG_WRITE
) == OBJ_PROP_FLAG_WRITE
) {
2642 setter
= property_set_uint64_ptr
;
2645 return object_class_property_add(klass
, name
, "uint64",
2646 getter
, setter
, NULL
, (void *)v
);
2654 static void property_get_alias(Object
*obj
, Visitor
*v
, const char *name
,
2655 void *opaque
, Error
**errp
)
2657 AliasProperty
*prop
= opaque
;
2659 object_property_get(prop
->target_obj
, v
, prop
->target_name
, errp
);
2662 static void property_set_alias(Object
*obj
, Visitor
*v
, const char *name
,
2663 void *opaque
, Error
**errp
)
2665 AliasProperty
*prop
= opaque
;
2667 object_property_set(prop
->target_obj
, v
, prop
->target_name
, errp
);
2670 static Object
*property_resolve_alias(Object
*obj
, void *opaque
,
2673 AliasProperty
*prop
= opaque
;
2675 return object_resolve_path_component(prop
->target_obj
, prop
->target_name
);
2678 static void property_release_alias(Object
*obj
, const char *name
, void *opaque
)
2680 AliasProperty
*prop
= opaque
;
2682 g_free(prop
->target_name
);
2687 object_property_add_alias(Object
*obj
, const char *name
,
2688 Object
*target_obj
, const char *target_name
)
2690 AliasProperty
*prop
;
2692 ObjectProperty
*target_prop
;
2693 g_autofree
char *prop_type
= NULL
;
2695 target_prop
= object_property_find(target_obj
, target_name
,
2698 if (object_property_is_child(target_prop
)) {
2699 prop_type
= g_strdup_printf("link%s",
2700 target_prop
->type
+ strlen("child"));
2702 prop_type
= g_strdup(target_prop
->type
);
2705 prop
= g_malloc(sizeof(*prop
));
2706 prop
->target_obj
= target_obj
;
2707 prop
->target_name
= g_strdup(target_name
);
2709 op
= object_property_add(obj
, name
, prop_type
,
2712 property_release_alias
,
2714 op
->resolve
= property_resolve_alias
;
2715 if (target_prop
->defval
) {
2716 op
->defval
= qobject_ref(target_prop
->defval
);
2719 object_property_set_description(obj
, op
->name
,
2720 target_prop
->description
);
2724 void object_property_set_description(Object
*obj
, const char *name
,
2725 const char *description
)
2729 op
= object_property_find(obj
, name
, &error_abort
);
2730 g_free(op
->description
);
2731 op
->description
= g_strdup(description
);
2734 void object_class_property_set_description(ObjectClass
*klass
,
2736 const char *description
)
2740 op
= g_hash_table_lookup(klass
->properties
, name
);
2741 g_free(op
->description
);
2742 op
->description
= g_strdup(description
);
2745 static void object_class_init(ObjectClass
*klass
, void *data
)
2747 object_class_property_add_str(klass
, "type", qdev_get_type
,
2751 static void register_types(void)
2753 static TypeInfo interface_info
= {
2754 .name
= TYPE_INTERFACE
,
2755 .class_size
= sizeof(InterfaceClass
),
2759 static TypeInfo object_info
= {
2760 .name
= TYPE_OBJECT
,
2761 .instance_size
= sizeof(Object
),
2762 .class_init
= object_class_init
,
2766 type_interface
= type_register_internal(&interface_info
);
2767 type_register_internal(&object_info
);
2770 type_init(register_types
)