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
,
269 static void object_property_free(gpointer data
)
271 ObjectProperty
*prop
= data
;
274 qobject_unref(prop
->defval
);
279 g_free(prop
->description
);
283 static void type_initialize(TypeImpl
*ti
)
291 ti
->class_size
= type_class_get_size(ti
);
292 ti
->instance_size
= type_object_get_size(ti
);
293 /* Any type with zero instance_size is implicitly abstract.
294 * This means interface types are all abstract.
296 if (ti
->instance_size
== 0) {
299 if (type_is_ancestor(ti
, type_interface
)) {
300 assert(ti
->instance_size
== 0);
301 assert(ti
->abstract
);
302 assert(!ti
->instance_init
);
303 assert(!ti
->instance_post_init
);
304 assert(!ti
->instance_finalize
);
305 assert(!ti
->num_interfaces
);
307 ti
->class = g_malloc0(ti
->class_size
);
309 parent
= type_get_parent(ti
);
311 type_initialize(parent
);
315 g_assert(parent
->class_size
<= ti
->class_size
);
316 g_assert(parent
->instance_size
<= ti
->instance_size
);
317 memcpy(ti
->class, parent
->class, parent
->class_size
);
318 ti
->class->interfaces
= NULL
;
319 ti
->class->properties
= g_hash_table_new_full(
320 g_str_hash
, g_str_equal
, NULL
, object_property_free
);
322 for (e
= parent
->class->interfaces
; e
; e
= e
->next
) {
323 InterfaceClass
*iface
= e
->data
;
324 ObjectClass
*klass
= OBJECT_CLASS(iface
);
326 type_initialize_interface(ti
, iface
->interface_type
, klass
->type
);
329 for (i
= 0; i
< ti
->num_interfaces
; i
++) {
330 TypeImpl
*t
= type_get_by_name(ti
->interfaces
[i
].typename
);
332 error_report("missing interface '%s' for object '%s'",
333 ti
->interfaces
[i
].typename
, parent
->name
);
336 for (e
= ti
->class->interfaces
; e
; e
= e
->next
) {
337 TypeImpl
*target_type
= OBJECT_CLASS(e
->data
)->type
;
339 if (type_is_ancestor(target_type
, t
)) {
348 type_initialize_interface(ti
, t
, t
);
351 ti
->class->properties
= g_hash_table_new_full(
352 g_str_hash
, g_str_equal
, NULL
, object_property_free
);
355 ti
->class->type
= ti
;
358 if (parent
->class_base_init
) {
359 parent
->class_base_init(ti
->class, ti
->class_data
);
361 parent
= type_get_parent(parent
);
364 if (ti
->class_init
) {
365 ti
->class_init(ti
->class, ti
->class_data
);
369 static void object_init_with_type(Object
*obj
, TypeImpl
*ti
)
371 if (type_has_parent(ti
)) {
372 object_init_with_type(obj
, type_get_parent(ti
));
375 if (ti
->instance_init
) {
376 ti
->instance_init(obj
);
380 static void object_post_init_with_type(Object
*obj
, TypeImpl
*ti
)
382 if (ti
->instance_post_init
) {
383 ti
->instance_post_init(obj
);
386 if (type_has_parent(ti
)) {
387 object_post_init_with_type(obj
, type_get_parent(ti
));
391 void object_apply_global_props(Object
*obj
, const GPtrArray
*props
, Error
**errp
)
399 for (i
= 0; i
< props
->len
; i
++) {
400 GlobalProperty
*p
= g_ptr_array_index(props
, i
);
403 if (object_dynamic_cast(obj
, p
->driver
) == NULL
) {
406 if (p
->optional
&& !object_property_find(obj
, p
->property
, NULL
)) {
410 object_property_parse(obj
, p
->value
, p
->property
, &err
);
412 error_prepend(&err
, "can't apply global %s.%s=%s: ",
413 p
->driver
, p
->property
, p
->value
);
415 * If errp != NULL, propagate error and return.
416 * If errp == NULL, report a warning, but keep going
417 * with the remaining globals.
420 error_propagate(errp
, err
);
423 warn_report_err(err
);
430 * Global property defaults
431 * Slot 0: accelerator's global property defaults
432 * Slot 1: machine's global property defaults
433 * Slot 2: global properties from legacy command line option
434 * Each is a GPtrArray of of GlobalProperty.
435 * Applied in order, later entries override earlier ones.
437 static GPtrArray
*object_compat_props
[3];
440 * Retrieve @GPtrArray for global property defined with options
441 * other than "-global". These are generally used for syntactic
442 * sugar and legacy command line options.
444 void object_register_sugar_prop(const char *driver
, const char *prop
, const char *value
)
447 if (!object_compat_props
[2]) {
448 object_compat_props
[2] = g_ptr_array_new();
450 g
= g_new0(GlobalProperty
, 1);
451 g
->driver
= g_strdup(driver
);
452 g
->property
= g_strdup(prop
);
453 g
->value
= g_strdup(value
);
454 g_ptr_array_add(object_compat_props
[2], g
);
458 * Set machine's global property defaults to @compat_props.
459 * May be called at most once.
461 void object_set_machine_compat_props(GPtrArray
*compat_props
)
463 assert(!object_compat_props
[1]);
464 object_compat_props
[1] = compat_props
;
468 * Set accelerator's global property defaults to @compat_props.
469 * May be called at most once.
471 void object_set_accelerator_compat_props(GPtrArray
*compat_props
)
473 assert(!object_compat_props
[0]);
474 object_compat_props
[0] = compat_props
;
477 void object_apply_compat_props(Object
*obj
)
481 for (i
= 0; i
< ARRAY_SIZE(object_compat_props
); i
++) {
482 object_apply_global_props(obj
, object_compat_props
[i
],
483 i
== 2 ? &error_fatal
: &error_abort
);
487 static void object_class_property_init_all(Object
*obj
)
489 ObjectPropertyIterator iter
;
490 ObjectProperty
*prop
;
492 object_class_property_iter_init(&iter
, object_get_class(obj
));
493 while ((prop
= object_property_iter_next(&iter
))) {
495 prop
->init(obj
, prop
);
500 static void object_initialize_with_type(void *data
, size_t size
, TypeImpl
*type
)
504 type_initialize(type
);
506 g_assert(type
->instance_size
>= sizeof(Object
));
507 g_assert(type
->abstract
== false);
508 g_assert(size
>= type
->instance_size
);
510 memset(obj
, 0, type
->instance_size
);
511 obj
->class = type
->class;
513 object_class_property_init_all(obj
);
514 obj
->properties
= g_hash_table_new_full(g_str_hash
, g_str_equal
,
515 NULL
, object_property_free
);
516 object_init_with_type(obj
, type
);
517 object_post_init_with_type(obj
, type
);
520 void object_initialize(void *data
, size_t size
, const char *typename
)
522 TypeImpl
*type
= type_get_by_name(typename
);
525 error_report("missing object type '%s'", typename
);
529 object_initialize_with_type(data
, size
, type
);
532 void object_initialize_child(Object
*parentobj
, const char *propname
,
533 void *childobj
, size_t size
, const char *type
,
538 va_start(vargs
, errp
);
539 object_initialize_childv(parentobj
, propname
, childobj
, size
, type
, errp
,
544 void object_initialize_childv(Object
*parentobj
, const char *propname
,
545 void *childobj
, size_t size
, const char *type
,
546 Error
**errp
, va_list vargs
)
548 Error
*local_err
= NULL
;
552 object_initialize(childobj
, size
, type
);
553 obj
= OBJECT(childobj
);
555 object_set_propv(obj
, &local_err
, vargs
);
560 object_property_add_child(parentobj
, propname
, obj
);
562 uc
= (UserCreatable
*)object_dynamic_cast(obj
, TYPE_USER_CREATABLE
);
564 user_creatable_complete(uc
, &local_err
);
566 object_unparent(obj
);
573 * We want @obj's reference to be 1 on success, 0 on failure.
574 * On success, it's 2: one taken by object_initialize(), and one
575 * by object_property_add_child().
576 * On failure in object_initialize() or earlier, it's 1.
577 * On failure afterwards, it's also 1: object_unparent() releases
578 * the reference taken by object_property_add_child().
582 error_propagate(errp
, local_err
);
585 static inline bool object_property_is_child(ObjectProperty
*prop
)
587 return strstart(prop
->type
, "child<", NULL
);
590 static void object_property_del_all(Object
*obj
)
592 g_autoptr(GHashTable
) done
= g_hash_table_new(NULL
, NULL
);
593 ObjectProperty
*prop
;
594 ObjectPropertyIterator iter
;
599 object_property_iter_init(&iter
, obj
);
600 while ((prop
= object_property_iter_next(&iter
)) != NULL
) {
601 if (g_hash_table_add(done
, prop
)) {
603 prop
->release(obj
, prop
->name
, prop
->opaque
);
611 g_hash_table_unref(obj
->properties
);
614 static void object_property_del_child(Object
*obj
, Object
*child
)
616 ObjectProperty
*prop
;
620 g_hash_table_iter_init(&iter
, obj
->properties
);
621 while (g_hash_table_iter_next(&iter
, &key
, &value
)) {
623 if (object_property_is_child(prop
) && prop
->opaque
== child
) {
625 prop
->release(obj
, prop
->name
, prop
->opaque
);
626 prop
->release
= NULL
;
631 g_hash_table_iter_init(&iter
, obj
->properties
);
632 while (g_hash_table_iter_next(&iter
, &key
, &value
)) {
634 if (object_property_is_child(prop
) && prop
->opaque
== child
) {
635 g_hash_table_iter_remove(&iter
);
641 void object_unparent(Object
*obj
)
644 object_property_del_child(obj
->parent
, obj
);
648 static void object_deinit(Object
*obj
, TypeImpl
*type
)
650 if (type
->instance_finalize
) {
651 type
->instance_finalize(obj
);
654 if (type_has_parent(type
)) {
655 object_deinit(obj
, type_get_parent(type
));
659 static void object_finalize(void *data
)
662 TypeImpl
*ti
= obj
->class->type
;
664 object_property_del_all(obj
);
665 object_deinit(obj
, ti
);
667 g_assert(obj
->ref
== 0);
673 static Object
*object_new_with_type(Type type
)
677 g_assert(type
!= NULL
);
678 type_initialize(type
);
680 obj
= g_malloc(type
->instance_size
);
681 object_initialize_with_type(obj
, type
->instance_size
, type
);
687 Object
*object_new_with_class(ObjectClass
*klass
)
689 return object_new_with_type(klass
->type
);
692 Object
*object_new(const char *typename
)
694 TypeImpl
*ti
= type_get_by_name(typename
);
696 return object_new_with_type(ti
);
700 Object
*object_new_with_props(const char *typename
,
709 va_start(vargs
, errp
);
710 obj
= object_new_with_propv(typename
, parent
, id
, errp
, vargs
);
717 Object
*object_new_with_propv(const char *typename
,
725 Error
*local_err
= NULL
;
728 klass
= object_class_by_name(typename
);
730 error_setg(errp
, "invalid object type: %s", typename
);
734 if (object_class_is_abstract(klass
)) {
735 error_setg(errp
, "object type '%s' is abstract", typename
);
738 obj
= object_new_with_type(klass
->type
);
740 if (object_set_propv(obj
, &local_err
, vargs
) < 0) {
745 object_property_add_child(parent
, id
, obj
);
748 uc
= (UserCreatable
*)object_dynamic_cast(obj
, TYPE_USER_CREATABLE
);
750 user_creatable_complete(uc
, &local_err
);
753 object_unparent(obj
);
763 error_propagate(errp
, local_err
);
769 int object_set_props(Object
*obj
,
776 va_start(vargs
, errp
);
777 ret
= object_set_propv(obj
, errp
, vargs
);
784 int object_set_propv(Object
*obj
,
788 const char *propname
;
789 Error
*local_err
= NULL
;
791 propname
= va_arg(vargs
, char *);
792 while (propname
!= NULL
) {
793 const char *value
= va_arg(vargs
, char *);
795 g_assert(value
!= NULL
);
796 object_property_parse(obj
, value
, propname
, &local_err
);
798 error_propagate(errp
, local_err
);
801 propname
= va_arg(vargs
, char *);
808 Object
*object_dynamic_cast(Object
*obj
, const char *typename
)
810 if (obj
&& object_class_dynamic_cast(object_get_class(obj
), typename
)) {
817 Object
*object_dynamic_cast_assert(Object
*obj
, const char *typename
,
818 const char *file
, int line
, const char *func
)
820 trace_object_dynamic_cast_assert(obj
? obj
->class->type
->name
: "(null)",
821 typename
, file
, line
, func
);
823 #ifdef CONFIG_QOM_CAST_DEBUG
827 for (i
= 0; obj
&& i
< OBJECT_CLASS_CAST_CACHE
; i
++) {
828 if (atomic_read(&obj
->class->object_cast_cache
[i
]) == typename
) {
833 inst
= object_dynamic_cast(obj
, typename
);
836 fprintf(stderr
, "%s:%d:%s: Object %p is not an instance of type %s\n",
837 file
, line
, func
, obj
, typename
);
843 if (obj
&& obj
== inst
) {
844 for (i
= 1; i
< OBJECT_CLASS_CAST_CACHE
; i
++) {
845 atomic_set(&obj
->class->object_cast_cache
[i
- 1],
846 atomic_read(&obj
->class->object_cast_cache
[i
]));
848 atomic_set(&obj
->class->object_cast_cache
[i
- 1], typename
);
856 ObjectClass
*object_class_dynamic_cast(ObjectClass
*class,
857 const char *typename
)
859 ObjectClass
*ret
= NULL
;
860 TypeImpl
*target_type
;
867 /* A simple fast path that can trigger a lot for leaf classes. */
869 if (type
->name
== typename
) {
873 target_type
= type_get_by_name(typename
);
875 /* target class type unknown, so fail the cast */
879 if (type
->class->interfaces
&&
880 type_is_ancestor(target_type
, type_interface
)) {
884 for (i
= class->interfaces
; i
; i
= i
->next
) {
885 ObjectClass
*target_class
= i
->data
;
887 if (type_is_ancestor(target_class
->type
, target_type
)) {
893 /* The match was ambiguous, don't allow a cast */
897 } else if (type_is_ancestor(type
, target_type
)) {
904 ObjectClass
*object_class_dynamic_cast_assert(ObjectClass
*class,
905 const char *typename
,
906 const char *file
, int line
,
911 trace_object_class_dynamic_cast_assert(class ? class->type
->name
: "(null)",
912 typename
, file
, line
, func
);
914 #ifdef CONFIG_QOM_CAST_DEBUG
917 for (i
= 0; class && i
< OBJECT_CLASS_CAST_CACHE
; i
++) {
918 if (atomic_read(&class->class_cast_cache
[i
]) == typename
) {
924 if (!class || !class->interfaces
) {
929 ret
= object_class_dynamic_cast(class, typename
);
931 fprintf(stderr
, "%s:%d:%s: Object %p is not an instance of type %s\n",
932 file
, line
, func
, class, typename
);
936 #ifdef CONFIG_QOM_CAST_DEBUG
937 if (class && ret
== class) {
938 for (i
= 1; i
< OBJECT_CLASS_CAST_CACHE
; i
++) {
939 atomic_set(&class->class_cast_cache
[i
- 1],
940 atomic_read(&class->class_cast_cache
[i
]));
942 atomic_set(&class->class_cast_cache
[i
- 1], typename
);
949 const char *object_get_typename(const Object
*obj
)
951 return obj
->class->type
->name
;
954 ObjectClass
*object_get_class(Object
*obj
)
959 bool object_class_is_abstract(ObjectClass
*klass
)
961 return klass
->type
->abstract
;
964 const char *object_class_get_name(ObjectClass
*klass
)
966 return klass
->type
->name
;
969 ObjectClass
*object_class_by_name(const char *typename
)
971 TypeImpl
*type
= type_get_by_name(typename
);
977 type_initialize(type
);
982 ObjectClass
*object_class_get_parent(ObjectClass
*class)
984 TypeImpl
*type
= type_get_parent(class->type
);
990 type_initialize(type
);
995 typedef struct OCFData
997 void (*fn
)(ObjectClass
*klass
, void *opaque
);
998 const char *implements_type
;
999 bool include_abstract
;
1003 static void object_class_foreach_tramp(gpointer key
, gpointer value
,
1006 OCFData
*data
= opaque
;
1007 TypeImpl
*type
= value
;
1010 type_initialize(type
);
1013 if (!data
->include_abstract
&& type
->abstract
) {
1017 if (data
->implements_type
&&
1018 !object_class_dynamic_cast(k
, data
->implements_type
)) {
1022 data
->fn(k
, data
->opaque
);
1025 void object_class_foreach(void (*fn
)(ObjectClass
*klass
, void *opaque
),
1026 const char *implements_type
, bool include_abstract
,
1029 OCFData data
= { fn
, implements_type
, include_abstract
, opaque
};
1031 enumerating_types
= true;
1032 g_hash_table_foreach(type_table_get(), object_class_foreach_tramp
, &data
);
1033 enumerating_types
= false;
1036 static int do_object_child_foreach(Object
*obj
,
1037 int (*fn
)(Object
*child
, void *opaque
),
1038 void *opaque
, bool recurse
)
1040 GHashTableIter iter
;
1041 ObjectProperty
*prop
;
1044 g_hash_table_iter_init(&iter
, obj
->properties
);
1045 while (g_hash_table_iter_next(&iter
, NULL
, (gpointer
*)&prop
)) {
1046 if (object_property_is_child(prop
)) {
1047 Object
*child
= prop
->opaque
;
1049 ret
= fn(child
, opaque
);
1054 ret
= do_object_child_foreach(child
, fn
, opaque
, true);
1064 int object_child_foreach(Object
*obj
, int (*fn
)(Object
*child
, void *opaque
),
1067 return do_object_child_foreach(obj
, fn
, opaque
, false);
1070 int object_child_foreach_recursive(Object
*obj
,
1071 int (*fn
)(Object
*child
, void *opaque
),
1074 return do_object_child_foreach(obj
, fn
, opaque
, true);
1077 static void object_class_get_list_tramp(ObjectClass
*klass
, void *opaque
)
1079 GSList
**list
= opaque
;
1081 *list
= g_slist_prepend(*list
, klass
);
1084 GSList
*object_class_get_list(const char *implements_type
,
1085 bool include_abstract
)
1087 GSList
*list
= NULL
;
1089 object_class_foreach(object_class_get_list_tramp
,
1090 implements_type
, include_abstract
, &list
);
1094 static gint
object_class_cmp(gconstpointer a
, gconstpointer b
)
1096 return strcasecmp(object_class_get_name((ObjectClass
*)a
),
1097 object_class_get_name((ObjectClass
*)b
));
1100 GSList
*object_class_get_list_sorted(const char *implements_type
,
1101 bool include_abstract
)
1103 return g_slist_sort(object_class_get_list(implements_type
, include_abstract
),
1107 Object
*object_ref(Object
*obj
)
1112 atomic_inc(&obj
->ref
);
1116 void object_unref(Object
*obj
)
1121 g_assert(obj
->ref
> 0);
1123 /* parent always holds a reference to its children */
1124 if (atomic_fetch_dec(&obj
->ref
) == 1) {
1125 object_finalize(obj
);
1129 static ObjectProperty
*
1130 object_property_try_add(Object
*obj
, const char *name
, const char *type
,
1131 ObjectPropertyAccessor
*get
,
1132 ObjectPropertyAccessor
*set
,
1133 ObjectPropertyRelease
*release
,
1134 void *opaque
, Error
**errp
)
1136 ObjectProperty
*prop
;
1137 size_t name_len
= strlen(name
);
1139 if (name_len
>= 3 && !memcmp(name
+ name_len
- 3, "[*]", 4)) {
1141 ObjectProperty
*ret
;
1142 char *name_no_array
= g_strdup(name
);
1144 name_no_array
[name_len
- 3] = '\0';
1145 for (i
= 0; ; ++i
) {
1146 char *full_name
= g_strdup_printf("%s[%d]", name_no_array
, i
);
1148 ret
= object_property_try_add(obj
, full_name
, type
, get
, set
,
1149 release
, opaque
, NULL
);
1155 g_free(name_no_array
);
1159 if (object_property_find(obj
, name
, NULL
) != NULL
) {
1160 error_setg(errp
, "attempt to add duplicate property '%s' to object (type '%s')",
1161 name
, object_get_typename(obj
));
1165 prop
= g_malloc0(sizeof(*prop
));
1167 prop
->name
= g_strdup(name
);
1168 prop
->type
= g_strdup(type
);
1172 prop
->release
= release
;
1173 prop
->opaque
= opaque
;
1175 g_hash_table_insert(obj
->properties
, prop
->name
, prop
);
1180 object_property_add(Object
*obj
, const char *name
, const char *type
,
1181 ObjectPropertyAccessor
*get
,
1182 ObjectPropertyAccessor
*set
,
1183 ObjectPropertyRelease
*release
,
1186 return object_property_try_add(obj
, name
, type
, get
, set
, release
,
1187 opaque
, &error_abort
);
1191 object_class_property_add(ObjectClass
*klass
,
1194 ObjectPropertyAccessor
*get
,
1195 ObjectPropertyAccessor
*set
,
1196 ObjectPropertyRelease
*release
,
1199 ObjectProperty
*prop
;
1201 assert(!object_class_property_find(klass
, name
, NULL
));
1203 prop
= g_malloc0(sizeof(*prop
));
1205 prop
->name
= g_strdup(name
);
1206 prop
->type
= g_strdup(type
);
1210 prop
->release
= release
;
1211 prop
->opaque
= opaque
;
1213 g_hash_table_insert(klass
->properties
, prop
->name
, prop
);
1218 ObjectProperty
*object_property_find(Object
*obj
, const char *name
,
1221 ObjectProperty
*prop
;
1222 ObjectClass
*klass
= object_get_class(obj
);
1224 prop
= object_class_property_find(klass
, name
, NULL
);
1229 prop
= g_hash_table_lookup(obj
->properties
, name
);
1234 error_setg(errp
, "Property '.%s' not found", name
);
1238 void object_property_iter_init(ObjectPropertyIterator
*iter
,
1241 g_hash_table_iter_init(&iter
->iter
, obj
->properties
);
1242 iter
->nextclass
= object_get_class(obj
);
1245 ObjectProperty
*object_property_iter_next(ObjectPropertyIterator
*iter
)
1248 while (!g_hash_table_iter_next(&iter
->iter
, &key
, &val
)) {
1249 if (!iter
->nextclass
) {
1252 g_hash_table_iter_init(&iter
->iter
, iter
->nextclass
->properties
);
1253 iter
->nextclass
= object_class_get_parent(iter
->nextclass
);
1258 void object_class_property_iter_init(ObjectPropertyIterator
*iter
,
1261 g_hash_table_iter_init(&iter
->iter
, klass
->properties
);
1262 iter
->nextclass
= object_class_get_parent(klass
);
1265 ObjectProperty
*object_class_property_find(ObjectClass
*klass
, const char *name
,
1268 ObjectProperty
*prop
;
1269 ObjectClass
*parent_klass
;
1271 parent_klass
= object_class_get_parent(klass
);
1273 prop
= object_class_property_find(parent_klass
, name
, NULL
);
1279 prop
= g_hash_table_lookup(klass
->properties
, name
);
1281 error_setg(errp
, "Property '.%s' not found", name
);
1286 void object_property_del(Object
*obj
, const char *name
)
1288 ObjectProperty
*prop
= g_hash_table_lookup(obj
->properties
, name
);
1290 if (prop
->release
) {
1291 prop
->release(obj
, name
, prop
->opaque
);
1293 g_hash_table_remove(obj
->properties
, name
);
1296 void object_property_get(Object
*obj
, Visitor
*v
, const char *name
,
1299 ObjectProperty
*prop
= object_property_find(obj
, name
, errp
);
1305 error_setg(errp
, QERR_PERMISSION_DENIED
);
1307 prop
->get(obj
, v
, name
, prop
->opaque
, errp
);
1311 void object_property_set(Object
*obj
, Visitor
*v
, const char *name
,
1314 ObjectProperty
*prop
= object_property_find(obj
, name
, errp
);
1320 error_setg(errp
, QERR_PERMISSION_DENIED
);
1322 prop
->set(obj
, v
, name
, prop
->opaque
, errp
);
1326 void object_property_set_str(Object
*obj
, const char *value
,
1327 const char *name
, Error
**errp
)
1329 QString
*qstr
= qstring_from_str(value
);
1330 object_property_set_qobject(obj
, QOBJECT(qstr
), name
, errp
);
1332 qobject_unref(qstr
);
1335 char *object_property_get_str(Object
*obj
, const char *name
,
1338 QObject
*ret
= object_property_get_qobject(obj
, name
, errp
);
1345 retval
= g_strdup(qobject_get_try_str(ret
));
1347 error_setg(errp
, QERR_INVALID_PARAMETER_TYPE
, name
, "string");
1354 void object_property_set_link(Object
*obj
, Object
*value
,
1355 const char *name
, Error
**errp
)
1358 char *path
= object_get_canonical_path(value
);
1359 object_property_set_str(obj
, path
, name
, errp
);
1362 object_property_set_str(obj
, "", name
, errp
);
1366 Object
*object_property_get_link(Object
*obj
, const char *name
,
1369 char *str
= object_property_get_str(obj
, name
, errp
);
1370 Object
*target
= NULL
;
1373 target
= object_resolve_path(str
, NULL
);
1375 error_set(errp
, ERROR_CLASS_DEVICE_NOT_FOUND
,
1376 "Device '%s' not found", str
);
1384 void object_property_set_bool(Object
*obj
, bool value
,
1385 const char *name
, Error
**errp
)
1387 QBool
*qbool
= qbool_from_bool(value
);
1388 object_property_set_qobject(obj
, QOBJECT(qbool
), name
, errp
);
1390 qobject_unref(qbool
);
1393 bool object_property_get_bool(Object
*obj
, const char *name
,
1396 QObject
*ret
= object_property_get_qobject(obj
, name
, errp
);
1403 qbool
= qobject_to(QBool
, ret
);
1405 error_setg(errp
, QERR_INVALID_PARAMETER_TYPE
, name
, "boolean");
1408 retval
= qbool_get_bool(qbool
);
1415 void object_property_set_int(Object
*obj
, int64_t value
,
1416 const char *name
, Error
**errp
)
1418 QNum
*qnum
= qnum_from_int(value
);
1419 object_property_set_qobject(obj
, QOBJECT(qnum
), name
, errp
);
1421 qobject_unref(qnum
);
1424 int64_t object_property_get_int(Object
*obj
, const char *name
,
1427 QObject
*ret
= object_property_get_qobject(obj
, name
, errp
);
1435 qnum
= qobject_to(QNum
, ret
);
1436 if (!qnum
|| !qnum_get_try_int(qnum
, &retval
)) {
1437 error_setg(errp
, QERR_INVALID_PARAMETER_TYPE
, name
, "int");
1445 static void object_property_init_defval(Object
*obj
, ObjectProperty
*prop
)
1447 Visitor
*v
= qobject_input_visitor_new(prop
->defval
);
1449 assert(prop
->set
!= NULL
);
1450 prop
->set(obj
, v
, prop
->name
, prop
->opaque
, &error_abort
);
1455 static void object_property_set_default(ObjectProperty
*prop
, QObject
*defval
)
1457 assert(!prop
->defval
);
1458 assert(!prop
->init
);
1460 prop
->defval
= defval
;
1461 prop
->init
= object_property_init_defval
;
1464 void object_property_set_default_bool(ObjectProperty
*prop
, bool value
)
1466 object_property_set_default(prop
, QOBJECT(qbool_from_bool(value
)));
1469 void object_property_set_default_str(ObjectProperty
*prop
, const char *value
)
1471 object_property_set_default(prop
, QOBJECT(qstring_from_str(value
)));
1474 void object_property_set_default_int(ObjectProperty
*prop
, int64_t value
)
1476 object_property_set_default(prop
, QOBJECT(qnum_from_int(value
)));
1479 void object_property_set_default_uint(ObjectProperty
*prop
, uint64_t value
)
1481 object_property_set_default(prop
, QOBJECT(qnum_from_uint(value
)));
1484 void object_property_set_uint(Object
*obj
, uint64_t value
,
1485 const char *name
, Error
**errp
)
1487 QNum
*qnum
= qnum_from_uint(value
);
1489 object_property_set_qobject(obj
, QOBJECT(qnum
), name
, errp
);
1490 qobject_unref(qnum
);
1493 uint64_t object_property_get_uint(Object
*obj
, const char *name
,
1496 QObject
*ret
= object_property_get_qobject(obj
, name
, errp
);
1503 qnum
= qobject_to(QNum
, ret
);
1504 if (!qnum
|| !qnum_get_try_uint(qnum
, &retval
)) {
1505 error_setg(errp
, QERR_INVALID_PARAMETER_TYPE
, name
, "uint");
1513 typedef struct EnumProperty
{
1514 const QEnumLookup
*lookup
;
1515 int (*get
)(Object
*, Error
**);
1516 void (*set
)(Object
*, int, Error
**);
1519 int object_property_get_enum(Object
*obj
, const char *name
,
1520 const char *typename
, Error
**errp
)
1524 ObjectProperty
*prop
= object_property_find(obj
, name
, errp
);
1525 EnumProperty
*enumprop
;
1531 if (!g_str_equal(prop
->type
, typename
)) {
1532 error_setg(errp
, "Property %s on %s is not '%s' enum type",
1533 name
, object_class_get_name(
1534 object_get_class(obj
)), typename
);
1538 enumprop
= prop
->opaque
;
1540 str
= object_property_get_str(obj
, name
, errp
);
1545 ret
= qapi_enum_parse(enumprop
->lookup
, str
, -1, errp
);
1551 void object_property_parse(Object
*obj
, const char *string
,
1552 const char *name
, Error
**errp
)
1554 Visitor
*v
= string_input_visitor_new(string
);
1555 object_property_set(obj
, v
, name
, errp
);
1559 char *object_property_print(Object
*obj
, const char *name
, bool human
,
1563 char *string
= NULL
;
1564 Error
*local_err
= NULL
;
1566 v
= string_output_visitor_new(human
, &string
);
1567 object_property_get(obj
, v
, name
, &local_err
);
1569 error_propagate(errp
, local_err
);
1573 visit_complete(v
, &string
);
1580 const char *object_property_get_type(Object
*obj
, const char *name
, Error
**errp
)
1582 ObjectProperty
*prop
= object_property_find(obj
, name
, errp
);
1590 Object
*object_get_root(void)
1592 static Object
*root
;
1595 root
= object_new("container");
1601 Object
*object_get_objects_root(void)
1603 return container_get(object_get_root(), "/objects");
1606 Object
*object_get_internal_root(void)
1608 static Object
*internal_root
;
1610 if (!internal_root
) {
1611 internal_root
= object_new("container");
1614 return internal_root
;
1617 static void object_get_child_property(Object
*obj
, Visitor
*v
,
1618 const char *name
, void *opaque
,
1621 Object
*child
= opaque
;
1624 path
= object_get_canonical_path(child
);
1625 visit_type_str(v
, name
, &path
, errp
);
1629 static Object
*object_resolve_child_property(Object
*parent
, void *opaque
,
1635 static void object_finalize_child_property(Object
*obj
, const char *name
,
1638 Object
*child
= opaque
;
1640 if (child
->class->unparent
) {
1641 (child
->class->unparent
)(child
);
1643 child
->parent
= NULL
;
1644 object_unref(child
);
1648 object_property_add_child(Object
*obj
, const char *name
,
1651 g_autofree
char *type
= NULL
;
1654 assert(!child
->parent
);
1656 type
= g_strdup_printf("child<%s>", object_get_typename(child
));
1658 op
= object_property_add(obj
, name
, type
, object_get_child_property
, NULL
,
1659 object_finalize_child_property
, child
);
1660 op
->resolve
= object_resolve_child_property
;
1662 child
->parent
= obj
;
1666 void object_property_allow_set_link(const Object
*obj
, const char *name
,
1667 Object
*val
, Error
**errp
)
1669 /* Allow the link to be set, always */
1675 Object
*target
; /* if OBJ_PROP_LINK_DIRECT, when holding the pointer */
1676 ptrdiff_t offset
; /* if OBJ_PROP_LINK_CLASS */
1678 void (*check
)(const Object
*, const char *, Object
*, Error
**);
1679 ObjectPropertyLinkFlags flags
;
1683 object_link_get_targetp(Object
*obj
, LinkProperty
*lprop
)
1685 if (lprop
->flags
& OBJ_PROP_LINK_DIRECT
) {
1686 return &lprop
->target
;
1687 } else if (lprop
->flags
& OBJ_PROP_LINK_CLASS
) {
1688 return (void *)obj
+ lprop
->offset
;
1690 return lprop
->targetp
;
1694 static void object_get_link_property(Object
*obj
, Visitor
*v
,
1695 const char *name
, void *opaque
,
1698 LinkProperty
*lprop
= opaque
;
1699 Object
**targetp
= object_link_get_targetp(obj
, lprop
);
1703 path
= object_get_canonical_path(*targetp
);
1704 visit_type_str(v
, name
, &path
, errp
);
1708 visit_type_str(v
, name
, &path
, errp
);
1713 * object_resolve_link:
1715 * Lookup an object and ensure its type matches the link property type. This
1716 * is similar to object_resolve_path() except type verification against the
1717 * link property is performed.
1719 * Returns: The matched object or NULL on path lookup failures.
1721 static Object
*object_resolve_link(Object
*obj
, const char *name
,
1722 const char *path
, Error
**errp
)
1726 bool ambiguous
= false;
1729 /* Go from link<FOO> to FOO. */
1730 type
= object_property_get_type(obj
, name
, NULL
);
1731 target_type
= g_strndup(&type
[5], strlen(type
) - 6);
1732 target
= object_resolve_path_type(path
, target_type
, &ambiguous
);
1735 error_setg(errp
, "Path '%s' does not uniquely identify an object",
1737 } else if (!target
) {
1738 target
= object_resolve_path(path
, &ambiguous
);
1739 if (target
|| ambiguous
) {
1740 error_setg(errp
, QERR_INVALID_PARAMETER_TYPE
, name
, target_type
);
1742 error_set(errp
, ERROR_CLASS_DEVICE_NOT_FOUND
,
1743 "Device '%s' not found", path
);
1747 g_free(target_type
);
1752 static void object_set_link_property(Object
*obj
, Visitor
*v
,
1753 const char *name
, void *opaque
,
1756 Error
*local_err
= NULL
;
1757 LinkProperty
*prop
= opaque
;
1758 Object
**targetp
= object_link_get_targetp(obj
, prop
);
1759 Object
*old_target
= *targetp
;
1760 Object
*new_target
= NULL
;
1763 visit_type_str(v
, name
, &path
, &local_err
);
1765 if (!local_err
&& strcmp(path
, "") != 0) {
1766 new_target
= object_resolve_link(obj
, name
, path
, &local_err
);
1771 error_propagate(errp
, local_err
);
1775 prop
->check(obj
, name
, new_target
, &local_err
);
1777 error_propagate(errp
, local_err
);
1781 *targetp
= new_target
;
1782 if (prop
->flags
& OBJ_PROP_LINK_STRONG
) {
1783 object_ref(new_target
);
1784 object_unref(old_target
);
1788 static Object
*object_resolve_link_property(Object
*parent
, void *opaque
,
1791 LinkProperty
*lprop
= opaque
;
1793 return *object_link_get_targetp(parent
, lprop
);
1796 static void object_release_link_property(Object
*obj
, const char *name
,
1799 LinkProperty
*prop
= opaque
;
1800 Object
**targetp
= object_link_get_targetp(obj
, prop
);
1802 if ((prop
->flags
& OBJ_PROP_LINK_STRONG
) && *targetp
) {
1803 object_unref(*targetp
);
1805 if (!(prop
->flags
& OBJ_PROP_LINK_CLASS
)) {
1810 static ObjectProperty
*
1811 object_add_link_prop(Object
*obj
, const char *name
,
1812 const char *type
, void *ptr
,
1813 void (*check
)(const Object
*, const char *,
1814 Object
*, Error
**),
1815 ObjectPropertyLinkFlags flags
)
1817 LinkProperty
*prop
= g_malloc(sizeof(*prop
));
1818 g_autofree
char *full_type
= NULL
;
1821 if (flags
& OBJ_PROP_LINK_DIRECT
) {
1824 prop
->targetp
= ptr
;
1826 prop
->check
= check
;
1827 prop
->flags
= flags
;
1829 full_type
= g_strdup_printf("link<%s>", type
);
1831 op
= object_property_add(obj
, name
, full_type
,
1832 object_get_link_property
,
1833 check
? object_set_link_property
: NULL
,
1834 object_release_link_property
,
1836 op
->resolve
= object_resolve_link_property
;
1841 object_property_add_link(Object
*obj
, const char *name
,
1842 const char *type
, Object
**targetp
,
1843 void (*check
)(const Object
*, const char *,
1844 Object
*, Error
**),
1845 ObjectPropertyLinkFlags flags
)
1847 return object_add_link_prop(obj
, name
, type
, targetp
, check
, flags
);
1851 object_class_property_add_link(ObjectClass
*oc
,
1853 const char *type
, ptrdiff_t offset
,
1854 void (*check
)(const Object
*obj
, const char *name
,
1855 Object
*val
, Error
**errp
),
1856 ObjectPropertyLinkFlags flags
)
1858 LinkProperty
*prop
= g_new0(LinkProperty
, 1);
1862 prop
->offset
= offset
;
1863 prop
->check
= check
;
1864 prop
->flags
= flags
| OBJ_PROP_LINK_CLASS
;
1866 full_type
= g_strdup_printf("link<%s>", type
);
1868 op
= object_class_property_add(oc
, name
, full_type
,
1869 object_get_link_property
,
1870 check
? object_set_link_property
: NULL
,
1871 object_release_link_property
,
1874 op
->resolve
= object_resolve_link_property
;
1881 object_property_add_const_link(Object
*obj
, const char *name
,
1884 return object_add_link_prop(obj
, name
,
1885 object_get_typename(target
), target
,
1886 NULL
, OBJ_PROP_LINK_DIRECT
);
1889 char *object_get_canonical_path_component(Object
*obj
)
1891 ObjectProperty
*prop
= NULL
;
1892 GHashTableIter iter
;
1894 if (obj
->parent
== NULL
) {
1898 g_hash_table_iter_init(&iter
, obj
->parent
->properties
);
1899 while (g_hash_table_iter_next(&iter
, NULL
, (gpointer
*)&prop
)) {
1900 if (!object_property_is_child(prop
)) {
1904 if (prop
->opaque
== obj
) {
1905 return g_strdup(prop
->name
);
1909 /* obj had a parent but was not a child, should never happen */
1910 g_assert_not_reached();
1914 char *object_get_canonical_path(Object
*obj
)
1916 Object
*root
= object_get_root();
1917 char *newpath
, *path
= NULL
;
1920 return g_strdup("/");
1924 char *component
= object_get_canonical_path_component(obj
);
1927 /* A canonical path must be complete, so discard what was
1934 newpath
= g_strdup_printf("/%s%s", component
, path
? path
: "");
1939 } while (obj
!= root
);
1944 Object
*object_resolve_path_component(Object
*parent
, const char *part
)
1946 ObjectProperty
*prop
= object_property_find(parent
, part
, NULL
);
1951 if (prop
->resolve
) {
1952 return prop
->resolve(parent
, prop
->opaque
, part
);
1958 static Object
*object_resolve_abs_path(Object
*parent
,
1960 const char *typename
,
1965 if (parts
[index
] == NULL
) {
1966 return object_dynamic_cast(parent
, typename
);
1969 if (strcmp(parts
[index
], "") == 0) {
1970 return object_resolve_abs_path(parent
, parts
, typename
, index
+ 1);
1973 child
= object_resolve_path_component(parent
, parts
[index
]);
1978 return object_resolve_abs_path(child
, parts
, typename
, index
+ 1);
1981 static Object
*object_resolve_partial_path(Object
*parent
,
1983 const char *typename
,
1987 GHashTableIter iter
;
1988 ObjectProperty
*prop
;
1990 obj
= object_resolve_abs_path(parent
, parts
, typename
, 0);
1992 g_hash_table_iter_init(&iter
, parent
->properties
);
1993 while (g_hash_table_iter_next(&iter
, NULL
, (gpointer
*)&prop
)) {
1996 if (!object_property_is_child(prop
)) {
2000 found
= object_resolve_partial_path(prop
->opaque
, parts
,
2001 typename
, ambiguous
);
2018 Object
*object_resolve_path_type(const char *path
, const char *typename
,
2024 parts
= g_strsplit(path
, "/", 0);
2027 if (parts
[0] == NULL
|| strcmp(parts
[0], "") != 0) {
2028 bool ambiguous
= false;
2029 obj
= object_resolve_partial_path(object_get_root(), parts
,
2030 typename
, &ambiguous
);
2032 *ambiguousp
= ambiguous
;
2035 obj
= object_resolve_abs_path(object_get_root(), parts
, typename
, 1);
2043 Object
*object_resolve_path(const char *path
, bool *ambiguous
)
2045 return object_resolve_path_type(path
, TYPE_OBJECT
, ambiguous
);
2048 typedef struct StringProperty
2050 char *(*get
)(Object
*, Error
**);
2051 void (*set
)(Object
*, const char *, Error
**);
2054 static void property_get_str(Object
*obj
, Visitor
*v
, const char *name
,
2055 void *opaque
, Error
**errp
)
2057 StringProperty
*prop
= opaque
;
2061 value
= prop
->get(obj
, &err
);
2063 error_propagate(errp
, err
);
2067 visit_type_str(v
, name
, &value
, errp
);
2071 static void property_set_str(Object
*obj
, Visitor
*v
, const char *name
,
2072 void *opaque
, Error
**errp
)
2074 StringProperty
*prop
= opaque
;
2076 Error
*local_err
= NULL
;
2078 visit_type_str(v
, name
, &value
, &local_err
);
2080 error_propagate(errp
, local_err
);
2084 prop
->set(obj
, value
, errp
);
2088 static void property_release_str(Object
*obj
, const char *name
,
2091 StringProperty
*prop
= opaque
;
2096 object_property_add_str(Object
*obj
, const char *name
,
2097 char *(*get
)(Object
*, Error
**),
2098 void (*set
)(Object
*, const char *, Error
**))
2100 StringProperty
*prop
= g_malloc0(sizeof(*prop
));
2105 return object_property_add(obj
, name
, "string",
2106 get
? property_get_str
: NULL
,
2107 set
? property_set_str
: NULL
,
2108 property_release_str
,
2113 object_class_property_add_str(ObjectClass
*klass
, const char *name
,
2114 char *(*get
)(Object
*, Error
**),
2115 void (*set
)(Object
*, const char *,
2118 StringProperty
*prop
= g_malloc0(sizeof(*prop
));
2123 return object_class_property_add(klass
, name
, "string",
2124 get
? property_get_str
: NULL
,
2125 set
? property_set_str
: NULL
,
2130 typedef struct BoolProperty
2132 bool (*get
)(Object
*, Error
**);
2133 void (*set
)(Object
*, bool, Error
**);
2136 static void property_get_bool(Object
*obj
, Visitor
*v
, const char *name
,
2137 void *opaque
, Error
**errp
)
2139 BoolProperty
*prop
= opaque
;
2143 value
= prop
->get(obj
, &err
);
2145 error_propagate(errp
, err
);
2149 visit_type_bool(v
, name
, &value
, errp
);
2152 static void property_set_bool(Object
*obj
, Visitor
*v
, const char *name
,
2153 void *opaque
, Error
**errp
)
2155 BoolProperty
*prop
= opaque
;
2157 Error
*local_err
= NULL
;
2159 visit_type_bool(v
, name
, &value
, &local_err
);
2161 error_propagate(errp
, local_err
);
2165 prop
->set(obj
, value
, errp
);
2168 static void property_release_bool(Object
*obj
, const char *name
,
2171 BoolProperty
*prop
= opaque
;
2176 object_property_add_bool(Object
*obj
, const char *name
,
2177 bool (*get
)(Object
*, Error
**),
2178 void (*set
)(Object
*, bool, Error
**))
2180 BoolProperty
*prop
= g_malloc0(sizeof(*prop
));
2185 return object_property_add(obj
, name
, "bool",
2186 get
? property_get_bool
: NULL
,
2187 set
? property_set_bool
: NULL
,
2188 property_release_bool
,
2193 object_class_property_add_bool(ObjectClass
*klass
, const char *name
,
2194 bool (*get
)(Object
*, Error
**),
2195 void (*set
)(Object
*, bool, Error
**))
2197 BoolProperty
*prop
= g_malloc0(sizeof(*prop
));
2202 return object_class_property_add(klass
, name
, "bool",
2203 get
? property_get_bool
: NULL
,
2204 set
? property_set_bool
: NULL
,
2209 static void property_get_enum(Object
*obj
, Visitor
*v
, const char *name
,
2210 void *opaque
, Error
**errp
)
2212 EnumProperty
*prop
= opaque
;
2216 value
= prop
->get(obj
, &err
);
2218 error_propagate(errp
, err
);
2222 visit_type_enum(v
, name
, &value
, prop
->lookup
, errp
);
2225 static void property_set_enum(Object
*obj
, Visitor
*v
, const char *name
,
2226 void *opaque
, Error
**errp
)
2228 EnumProperty
*prop
= opaque
;
2232 visit_type_enum(v
, name
, &value
, prop
->lookup
, &err
);
2234 error_propagate(errp
, err
);
2237 prop
->set(obj
, value
, errp
);
2240 static void property_release_enum(Object
*obj
, const char *name
,
2243 EnumProperty
*prop
= opaque
;
2248 object_property_add_enum(Object
*obj
, const char *name
,
2249 const char *typename
,
2250 const QEnumLookup
*lookup
,
2251 int (*get
)(Object
*, Error
**),
2252 void (*set
)(Object
*, int, Error
**))
2254 EnumProperty
*prop
= g_malloc(sizeof(*prop
));
2256 prop
->lookup
= lookup
;
2260 return object_property_add(obj
, name
, typename
,
2261 get
? property_get_enum
: NULL
,
2262 set
? property_set_enum
: NULL
,
2263 property_release_enum
,
2268 object_class_property_add_enum(ObjectClass
*klass
, const char *name
,
2269 const char *typename
,
2270 const QEnumLookup
*lookup
,
2271 int (*get
)(Object
*, Error
**),
2272 void (*set
)(Object
*, int, Error
**))
2274 EnumProperty
*prop
= g_malloc(sizeof(*prop
));
2276 prop
->lookup
= lookup
;
2280 return object_class_property_add(klass
, name
, typename
,
2281 get
? property_get_enum
: NULL
,
2282 set
? property_set_enum
: NULL
,
2287 typedef struct TMProperty
{
2288 void (*get
)(Object
*, struct tm
*, Error
**);
2291 static void property_get_tm(Object
*obj
, Visitor
*v
, const char *name
,
2292 void *opaque
, Error
**errp
)
2294 TMProperty
*prop
= opaque
;
2298 prop
->get(obj
, &value
, &err
);
2303 visit_start_struct(v
, name
, NULL
, 0, &err
);
2307 visit_type_int32(v
, "tm_year", &value
.tm_year
, &err
);
2311 visit_type_int32(v
, "tm_mon", &value
.tm_mon
, &err
);
2315 visit_type_int32(v
, "tm_mday", &value
.tm_mday
, &err
);
2319 visit_type_int32(v
, "tm_hour", &value
.tm_hour
, &err
);
2323 visit_type_int32(v
, "tm_min", &value
.tm_min
, &err
);
2327 visit_type_int32(v
, "tm_sec", &value
.tm_sec
, &err
);
2331 visit_check_struct(v
, &err
);
2333 visit_end_struct(v
, NULL
);
2335 error_propagate(errp
, err
);
2339 static void property_release_tm(Object
*obj
, const char *name
,
2342 TMProperty
*prop
= opaque
;
2347 object_property_add_tm(Object
*obj
, const char *name
,
2348 void (*get
)(Object
*, struct tm
*, Error
**))
2350 TMProperty
*prop
= g_malloc0(sizeof(*prop
));
2354 return object_property_add(obj
, name
, "struct tm",
2355 get
? property_get_tm
: NULL
, NULL
,
2356 property_release_tm
,
2361 object_class_property_add_tm(ObjectClass
*klass
, const char *name
,
2362 void (*get
)(Object
*, struct tm
*, Error
**))
2364 TMProperty
*prop
= g_malloc0(sizeof(*prop
));
2368 return object_class_property_add(klass
, name
, "struct tm",
2369 get
? property_get_tm
: NULL
,
2373 static char *qdev_get_type(Object
*obj
, Error
**errp
)
2375 return g_strdup(object_get_typename(obj
));
2378 static void property_get_uint8_ptr(Object
*obj
, Visitor
*v
, const char *name
,
2379 void *opaque
, Error
**errp
)
2381 uint8_t value
= *(uint8_t *)opaque
;
2382 visit_type_uint8(v
, name
, &value
, errp
);
2385 static void property_set_uint8_ptr(Object
*obj
, Visitor
*v
, const char *name
,
2386 void *opaque
, Error
**errp
)
2388 uint8_t *field
= opaque
;
2390 Error
*local_err
= NULL
;
2392 visit_type_uint8(v
, name
, &value
, &local_err
);
2394 error_propagate(errp
, local_err
);
2401 static void property_get_uint16_ptr(Object
*obj
, Visitor
*v
, const char *name
,
2402 void *opaque
, Error
**errp
)
2404 uint16_t value
= *(uint16_t *)opaque
;
2405 visit_type_uint16(v
, name
, &value
, errp
);
2408 static void property_set_uint16_ptr(Object
*obj
, Visitor
*v
, const char *name
,
2409 void *opaque
, Error
**errp
)
2411 uint16_t *field
= opaque
;
2413 Error
*local_err
= NULL
;
2415 visit_type_uint16(v
, name
, &value
, &local_err
);
2417 error_propagate(errp
, local_err
);
2424 static void property_get_uint32_ptr(Object
*obj
, Visitor
*v
, const char *name
,
2425 void *opaque
, Error
**errp
)
2427 uint32_t value
= *(uint32_t *)opaque
;
2428 visit_type_uint32(v
, name
, &value
, errp
);
2431 static void property_set_uint32_ptr(Object
*obj
, Visitor
*v
, const char *name
,
2432 void *opaque
, Error
**errp
)
2434 uint32_t *field
= opaque
;
2436 Error
*local_err
= NULL
;
2438 visit_type_uint32(v
, name
, &value
, &local_err
);
2440 error_propagate(errp
, local_err
);
2447 static void property_get_uint64_ptr(Object
*obj
, Visitor
*v
, const char *name
,
2448 void *opaque
, Error
**errp
)
2450 uint64_t value
= *(uint64_t *)opaque
;
2451 visit_type_uint64(v
, name
, &value
, errp
);
2454 static void property_set_uint64_ptr(Object
*obj
, Visitor
*v
, const char *name
,
2455 void *opaque
, Error
**errp
)
2457 uint64_t *field
= opaque
;
2459 Error
*local_err
= NULL
;
2461 visit_type_uint64(v
, name
, &value
, &local_err
);
2463 error_propagate(errp
, local_err
);
2471 object_property_add_uint8_ptr(Object
*obj
, const char *name
,
2473 ObjectPropertyFlags flags
)
2475 ObjectPropertyAccessor
*getter
= NULL
;
2476 ObjectPropertyAccessor
*setter
= NULL
;
2478 if ((flags
& OBJ_PROP_FLAG_READ
) == OBJ_PROP_FLAG_READ
) {
2479 getter
= property_get_uint8_ptr
;
2482 if ((flags
& OBJ_PROP_FLAG_WRITE
) == OBJ_PROP_FLAG_WRITE
) {
2483 setter
= property_set_uint8_ptr
;
2486 return object_property_add(obj
, name
, "uint8",
2487 getter
, setter
, NULL
, (void *)v
);
2491 object_class_property_add_uint8_ptr(ObjectClass
*klass
, const char *name
,
2493 ObjectPropertyFlags flags
)
2495 ObjectPropertyAccessor
*getter
= NULL
;
2496 ObjectPropertyAccessor
*setter
= NULL
;
2498 if ((flags
& OBJ_PROP_FLAG_READ
) == OBJ_PROP_FLAG_READ
) {
2499 getter
= property_get_uint8_ptr
;
2502 if ((flags
& OBJ_PROP_FLAG_WRITE
) == OBJ_PROP_FLAG_WRITE
) {
2503 setter
= property_set_uint8_ptr
;
2506 return object_class_property_add(klass
, name
, "uint8",
2507 getter
, setter
, NULL
, (void *)v
);
2511 object_property_add_uint16_ptr(Object
*obj
, const char *name
,
2513 ObjectPropertyFlags flags
)
2515 ObjectPropertyAccessor
*getter
= NULL
;
2516 ObjectPropertyAccessor
*setter
= NULL
;
2518 if ((flags
& OBJ_PROP_FLAG_READ
) == OBJ_PROP_FLAG_READ
) {
2519 getter
= property_get_uint16_ptr
;
2522 if ((flags
& OBJ_PROP_FLAG_WRITE
) == OBJ_PROP_FLAG_WRITE
) {
2523 setter
= property_set_uint16_ptr
;
2526 return object_property_add(obj
, name
, "uint16",
2527 getter
, setter
, NULL
, (void *)v
);
2531 object_class_property_add_uint16_ptr(ObjectClass
*klass
, const char *name
,
2533 ObjectPropertyFlags flags
)
2535 ObjectPropertyAccessor
*getter
= NULL
;
2536 ObjectPropertyAccessor
*setter
= NULL
;
2538 if ((flags
& OBJ_PROP_FLAG_READ
) == OBJ_PROP_FLAG_READ
) {
2539 getter
= property_get_uint16_ptr
;
2542 if ((flags
& OBJ_PROP_FLAG_WRITE
) == OBJ_PROP_FLAG_WRITE
) {
2543 setter
= property_set_uint16_ptr
;
2546 return object_class_property_add(klass
, name
, "uint16",
2547 getter
, setter
, NULL
, (void *)v
);
2551 object_property_add_uint32_ptr(Object
*obj
, const char *name
,
2553 ObjectPropertyFlags flags
)
2555 ObjectPropertyAccessor
*getter
= NULL
;
2556 ObjectPropertyAccessor
*setter
= NULL
;
2558 if ((flags
& OBJ_PROP_FLAG_READ
) == OBJ_PROP_FLAG_READ
) {
2559 getter
= property_get_uint32_ptr
;
2562 if ((flags
& OBJ_PROP_FLAG_WRITE
) == OBJ_PROP_FLAG_WRITE
) {
2563 setter
= property_set_uint32_ptr
;
2566 return object_property_add(obj
, name
, "uint32",
2567 getter
, setter
, NULL
, (void *)v
);
2571 object_class_property_add_uint32_ptr(ObjectClass
*klass
, const char *name
,
2573 ObjectPropertyFlags flags
)
2575 ObjectPropertyAccessor
*getter
= NULL
;
2576 ObjectPropertyAccessor
*setter
= NULL
;
2578 if ((flags
& OBJ_PROP_FLAG_READ
) == OBJ_PROP_FLAG_READ
) {
2579 getter
= property_get_uint32_ptr
;
2582 if ((flags
& OBJ_PROP_FLAG_WRITE
) == OBJ_PROP_FLAG_WRITE
) {
2583 setter
= property_set_uint32_ptr
;
2586 return object_class_property_add(klass
, name
, "uint32",
2587 getter
, setter
, NULL
, (void *)v
);
2591 object_property_add_uint64_ptr(Object
*obj
, const char *name
,
2593 ObjectPropertyFlags flags
)
2595 ObjectPropertyAccessor
*getter
= NULL
;
2596 ObjectPropertyAccessor
*setter
= NULL
;
2598 if ((flags
& OBJ_PROP_FLAG_READ
) == OBJ_PROP_FLAG_READ
) {
2599 getter
= property_get_uint64_ptr
;
2602 if ((flags
& OBJ_PROP_FLAG_WRITE
) == OBJ_PROP_FLAG_WRITE
) {
2603 setter
= property_set_uint64_ptr
;
2606 return object_property_add(obj
, name
, "uint64",
2607 getter
, setter
, NULL
, (void *)v
);
2611 object_class_property_add_uint64_ptr(ObjectClass
*klass
, const char *name
,
2613 ObjectPropertyFlags flags
)
2615 ObjectPropertyAccessor
*getter
= NULL
;
2616 ObjectPropertyAccessor
*setter
= NULL
;
2618 if ((flags
& OBJ_PROP_FLAG_READ
) == OBJ_PROP_FLAG_READ
) {
2619 getter
= property_get_uint64_ptr
;
2622 if ((flags
& OBJ_PROP_FLAG_WRITE
) == OBJ_PROP_FLAG_WRITE
) {
2623 setter
= property_set_uint64_ptr
;
2626 return object_class_property_add(klass
, name
, "uint64",
2627 getter
, setter
, NULL
, (void *)v
);
2635 static void property_get_alias(Object
*obj
, Visitor
*v
, const char *name
,
2636 void *opaque
, Error
**errp
)
2638 AliasProperty
*prop
= opaque
;
2640 object_property_get(prop
->target_obj
, v
, prop
->target_name
, errp
);
2643 static void property_set_alias(Object
*obj
, Visitor
*v
, const char *name
,
2644 void *opaque
, Error
**errp
)
2646 AliasProperty
*prop
= opaque
;
2648 object_property_set(prop
->target_obj
, v
, prop
->target_name
, errp
);
2651 static Object
*property_resolve_alias(Object
*obj
, void *opaque
,
2654 AliasProperty
*prop
= opaque
;
2656 return object_resolve_path_component(prop
->target_obj
, prop
->target_name
);
2659 static void property_release_alias(Object
*obj
, const char *name
, void *opaque
)
2661 AliasProperty
*prop
= opaque
;
2663 g_free(prop
->target_name
);
2668 object_property_add_alias(Object
*obj
, const char *name
,
2669 Object
*target_obj
, const char *target_name
)
2671 AliasProperty
*prop
;
2673 ObjectProperty
*target_prop
;
2674 g_autofree
char *prop_type
= NULL
;
2676 target_prop
= object_property_find(target_obj
, target_name
,
2679 if (object_property_is_child(target_prop
)) {
2680 prop_type
= g_strdup_printf("link%s",
2681 target_prop
->type
+ strlen("child"));
2683 prop_type
= g_strdup(target_prop
->type
);
2686 prop
= g_malloc(sizeof(*prop
));
2687 prop
->target_obj
= target_obj
;
2688 prop
->target_name
= g_strdup(target_name
);
2690 op
= object_property_add(obj
, name
, prop_type
,
2693 property_release_alias
,
2695 op
->resolve
= property_resolve_alias
;
2696 if (target_prop
->defval
) {
2697 op
->defval
= qobject_ref(target_prop
->defval
);
2700 object_property_set_description(obj
, op
->name
,
2701 target_prop
->description
);
2705 void object_property_set_description(Object
*obj
, const char *name
,
2706 const char *description
)
2710 op
= object_property_find(obj
, name
, &error_abort
);
2711 g_free(op
->description
);
2712 op
->description
= g_strdup(description
);
2715 void object_class_property_set_description(ObjectClass
*klass
,
2717 const char *description
)
2721 op
= g_hash_table_lookup(klass
->properties
, name
);
2722 g_free(op
->description
);
2723 op
->description
= g_strdup(description
);
2726 static void object_class_init(ObjectClass
*klass
, void *data
)
2728 object_class_property_add_str(klass
, "type", qdev_get_type
,
2732 static void register_types(void)
2734 static TypeInfo interface_info
= {
2735 .name
= TYPE_INTERFACE
,
2736 .class_size
= sizeof(InterfaceClass
),
2740 static TypeInfo object_info
= {
2741 .name
= TYPE_OBJECT
,
2742 .instance_size
= sizeof(Object
),
2743 .class_init
= object_class_init
,
2747 type_interface
= type_register_internal(&interface_info
);
2748 type_register_internal(&object_info
);
2751 type_init(register_types
)