269e09f3fc
Introduces USER_CREATABLE interface that must be implemented by objects which are designed to created with -object CLI option or object-add QMP command. Interface provides an ability to do an optional second stage initialization of the object created with -object/object-add commands. By providing complete() callback, which is called after the object properties were set. It allows to: * prevents misusing of -object/object-add by filtering out objects that are not designed for it. * generalize second stage backend initialization instead of adding custom APIs to perform it * early error detection of backend initialization at -object/ object-add time rather than through a proxy DEVICE object that tries to use backend. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
33 lines
694 B
C
33 lines
694 B
C
#include "qom/object_interfaces.h"
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#include "qemu/module.h"
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void user_creatable_complete(Object *obj, Error **errp)
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{
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UserCreatableClass *ucc;
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UserCreatable *uc =
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(UserCreatable *)object_dynamic_cast(obj, TYPE_USER_CREATABLE);
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if (!uc) {
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return;
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}
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ucc = USER_CREATABLE_GET_CLASS(uc);
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if (ucc->complete) {
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ucc->complete(uc, errp);
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}
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}
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static void register_types(void)
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{
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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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};
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type_register_static(&uc_interface_info);
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}
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type_init(register_types)
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