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#include "qemu/osdep.h"
#include "qapi/error.h"
#include "qapi/qmp/qdict.h"
#include "qapi/qmp/qerror.h"
#include "qom/object_interfaces.h"
#include "qemu/module.h"
#include "qemu/option.h"
#include "qapi/opts-visitor.h"
#include "qemu/config-file.h"
void user_creatable_complete(Object *obj, Error **errp)
{
UserCreatableClass *ucc;
UserCreatable *uc =
(UserCreatable *)object_dynamic_cast(obj, TYPE_USER_CREATABLE);
if (!uc) {
return;
}
ucc = USER_CREATABLE_GET_CLASS(uc);
if (ucc->complete) {
ucc->complete(uc, errp);
}
}
bool user_creatable_can_be_deleted(UserCreatable *uc)
{
UserCreatableClass *ucc = USER_CREATABLE_GET_CLASS(uc);
if (ucc->can_be_deleted) {
return ucc->can_be_deleted(uc);
} else {
return true;
}
}
Object *user_creatable_add_type(const char *type, const char *id,
const QDict *qdict,
Visitor *v, Error **errp)
{
Object *obj;
ObjectClass *klass;
const QDictEntry *e;
Error *local_err = NULL;
klass = object_class_by_name(type);
if (!klass) {
error_setg(errp, "invalid object type: %s", type);
return NULL;
}
if (!object_class_dynamic_cast(klass, TYPE_USER_CREATABLE)) {
error_setg(errp, "object type '%s' isn't supported by object-add",
type);
return NULL;
}
if (object_class_is_abstract(klass)) {
error_setg(errp, "object type '%s' is abstract", type);
return NULL;
}
assert(qdict);
obj = object_new(type);
visit_start_struct(v, NULL, NULL, 0, &local_err);
if (local_err) {
goto out;
}
for (e = qdict_first(qdict); e; e = qdict_next(qdict, e)) {
object_property_set(obj, v, e->key, &local_err);
if (local_err) {
break;
}
}
if (!local_err) {
visit_check_struct(v, &local_err);
}
visit_end_struct(v, NULL);
if (local_err) {
goto out;
}
object_property_add_child(object_get_objects_root(),
id, obj, &local_err);
if (local_err) {
goto out;
}
user_creatable_complete(obj, &local_err);
if (local_err) {
object_property_del(object_get_objects_root(),
id, &error_abort);
goto out;
}
out:
if (local_err) {
error_propagate(errp, local_err);
object_unref(obj);
return NULL;
}
return obj;
}
Object *user_creatable_add_opts(QemuOpts *opts, Error **errp)
{
Visitor *v;
QDict *pdict;
Object *obj;
const char *id = qemu_opts_id(opts);
char *type = qemu_opt_get_del(opts, "qom-type");
if (!type) {
error_setg(errp, QERR_MISSING_PARAMETER, "qom-type");
return NULL;
}
if (!id) {
error_setg(errp, QERR_MISSING_PARAMETER, "id");
qemu_opt_set(opts, "qom-type", type, &error_abort);
g_free(type);
return NULL;
}
qemu_opts_set_id(opts, NULL);
pdict = qemu_opts_to_qdict(opts, NULL);
v = opts_visitor_new(opts);
obj = user_creatable_add_type(type, id, pdict, v, errp);
visit_free(v);
qemu_opts_set_id(opts, (char *) id);
qemu_opt_set(opts, "qom-type", type, &error_abort);
g_free(type);
qobject_unref(pdict);
return obj;
}
int user_creatable_add_opts_foreach(void *opaque, QemuOpts *opts, Error **errp)
{
bool (*type_predicate)(const char *) = opaque;
Object *obj = NULL;
Error *err = NULL;
const char *type;
type = qemu_opt_get(opts, "qom-type");
if (type && type_predicate &&
!type_predicate(type)) {
return 0;
}
obj = user_creatable_add_opts(opts, &err);
if (!obj) {
error_report_err(err);
return -1;
}
object_unref(obj);
return 0;
}
void user_creatable_del(const char *id, Error **errp)
{
Object *container;
Object *obj;
container = object_get_objects_root();
obj = object_resolve_path_component(container, id);
if (!obj) {
error_setg(errp, "object '%s' not found", id);
return;
}
if (!user_creatable_can_be_deleted(USER_CREATABLE(obj))) {
error_setg(errp, "object '%s' is in use, can not be deleted", id);
return;
}
/*
* if object was defined on the command-line, remove its corresponding
* option group entry
*/
qemu_opts_del(qemu_opts_find(qemu_find_opts_err("object", &error_abort),
id));
object_unparent(obj);
}
void user_creatable_cleanup(void)
{
object_unparent(object_get_objects_root());
}
static void register_types(void)
{
static const TypeInfo uc_interface_info = {
.name = TYPE_USER_CREATABLE,
.parent = TYPE_INTERFACE,
.class_size = sizeof(UserCreatableClass),
};
type_register_static(&uc_interface_info);
}
type_init(register_types)
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