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#include "qemu/osdep.h"
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#include "qapi/error.h"
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#include "qom/object_interfaces.h"
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#include "qemu/module.h"
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#include "qapi-visit.h"
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#include "qapi/qobject-output-visitor.h"
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#include "qapi/opts-visitor.h"
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void user_creatable_complete(Object *obj, Error **errp)
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UserCreatableClass *ucc;
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(UserCreatable *)object_dynamic_cast(obj, TYPE_USER_CREATABLE);
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ucc = USER_CREATABLE_GET_CLASS(uc);
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ucc->complete(uc, errp);
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bool user_creatable_can_be_deleted(UserCreatable *uc, Error **errp)
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UserCreatableClass *ucc = USER_CREATABLE_GET_CLASS(uc);
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if (ucc->can_be_deleted) {
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return ucc->can_be_deleted(uc, errp);
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Object *user_creatable_add(const QDict *qdict,
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Visitor *v, Error **errp)
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Error *local_err = NULL;
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pdict = qdict_clone_shallow(qdict);
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visit_start_struct(v, NULL, NULL, 0, &local_err);
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qdict_del(pdict, "qom-type");
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visit_type_str(v, "qom-type", &type, &local_err);
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qdict_del(pdict, "id");
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visit_type_str(v, "id", &id, &local_err);
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visit_check_struct(v, &local_err);
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obj = user_creatable_add_type(type, id, pdict, v, &local_err);
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visit_end_struct(v, NULL);
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error_propagate(errp, local_err);
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Object *user_creatable_add_type(const char *type, const char *id,
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Visitor *v, Error **errp)
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Error *local_err = NULL;
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klass = object_class_by_name(type);
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error_setg(errp, "invalid object type: %s", type);
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if (!object_class_dynamic_cast(klass, TYPE_USER_CREATABLE)) {
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error_setg(errp, "object type '%s' isn't supported by object-add",
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if (object_class_is_abstract(klass)) {
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error_setg(errp, "object type '%s' is abstract", type);
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obj = object_new(type);
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visit_start_struct(v, NULL, NULL, 0, &local_err);
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for (e = qdict_first(qdict); e; e = qdict_next(qdict, e)) {
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object_property_set(obj, v, e->key, &local_err);
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visit_check_struct(v, &local_err);
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visit_end_struct(v, NULL);
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object_property_add_child(object_get_objects_root(),
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id, obj, &local_err);
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user_creatable_complete(obj, &local_err);
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object_property_del(object_get_objects_root(),
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error_propagate(errp, local_err);
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Object *user_creatable_add_opts(QemuOpts *opts, Error **errp)
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v = opts_visitor_new(opts);
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pdict = qemu_opts_to_qdict(opts, NULL);
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obj = user_creatable_add(pdict, v, errp);
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int user_creatable_add_opts_foreach(void *opaque, QemuOpts *opts, Error **errp)
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bool (*type_predicate)(const char *) = opaque;
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type = qemu_opt_get(opts, "qom-type");
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if (type && type_predicate &&
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!type_predicate(type)) {
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obj = user_creatable_add_opts(opts, &err);
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error_report_err(err);
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void user_creatable_del(const char *id, Error **errp)
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container = object_get_objects_root();
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obj = object_resolve_path_component(container, id);
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error_setg(errp, "object '%s' not found", id);
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if (!user_creatable_can_be_deleted(USER_CREATABLE(obj), errp)) {
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error_setg(errp, "object '%s' is in use, can not be deleted", id);
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object_unparent(obj);
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static void register_types(void)
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static const TypeInfo uc_interface_info = {
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.name = TYPE_USER_CREATABLE,
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.parent = TYPE_INTERFACE,
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.class_size = sizeof(UserCreatableClass),
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type_register_static(&uc_interface_info);
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type_init(register_types)