mirror of https://gitee.com/openkylin/qemu.git
221 lines
4.9 KiB
C
221 lines
4.9 KiB
C
#include "qemu/osdep.h"
|
|
#include "qapi/error.h"
|
|
#include "qom/object_interfaces.h"
|
|
#include "qemu/module.h"
|
|
#include "qapi-visit.h"
|
|
#include "qapi/qmp-output-visitor.h"
|
|
#include "qapi/opts-visitor.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, Error **errp)
|
|
{
|
|
|
|
UserCreatableClass *ucc = USER_CREATABLE_GET_CLASS(uc);
|
|
|
|
if (ucc->can_be_deleted) {
|
|
return ucc->can_be_deleted(uc, errp);
|
|
} else {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
|
|
Object *user_creatable_add(const QDict *qdict,
|
|
Visitor *v, Error **errp)
|
|
{
|
|
char *type = NULL;
|
|
char *id = NULL;
|
|
Object *obj = NULL;
|
|
Error *local_err = NULL, *end_err = NULL;
|
|
QDict *pdict;
|
|
|
|
pdict = qdict_clone_shallow(qdict);
|
|
|
|
visit_start_struct(v, NULL, NULL, 0, &local_err);
|
|
if (local_err) {
|
|
goto out;
|
|
}
|
|
|
|
qdict_del(pdict, "qom-type");
|
|
visit_type_str(v, "qom-type", &type, &local_err);
|
|
if (local_err) {
|
|
goto out_visit;
|
|
}
|
|
|
|
qdict_del(pdict, "id");
|
|
visit_type_str(v, "id", &id, &local_err);
|
|
if (local_err) {
|
|
goto out_visit;
|
|
}
|
|
|
|
obj = user_creatable_add_type(type, id, pdict, v, &local_err);
|
|
if (local_err) {
|
|
goto out_visit;
|
|
}
|
|
|
|
out_visit:
|
|
visit_end_struct(v, &end_err);
|
|
if (end_err) {
|
|
error_propagate(&local_err, end_err);
|
|
if (obj) {
|
|
user_creatable_del(id, NULL);
|
|
}
|
|
goto out;
|
|
}
|
|
|
|
out:
|
|
QDECREF(pdict);
|
|
g_free(id);
|
|
g_free(type);
|
|
if (local_err) {
|
|
error_propagate(errp, local_err);
|
|
object_unref(obj);
|
|
return NULL;
|
|
}
|
|
return obj;
|
|
}
|
|
|
|
|
|
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;
|
|
}
|
|
|
|
obj = object_new(type);
|
|
if (qdict) {
|
|
for (e = qdict_first(qdict); e; e = qdict_next(qdict, e)) {
|
|
object_property_set(obj, v, e->key, &local_err);
|
|
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)
|
|
{
|
|
OptsVisitor *ov;
|
|
QDict *pdict;
|
|
Object *obj = NULL;
|
|
|
|
ov = opts_visitor_new(opts);
|
|
pdict = qemu_opts_to_qdict(opts, NULL);
|
|
|
|
obj = user_creatable_add(pdict, opts_get_visitor(ov), errp);
|
|
opts_visitor_cleanup(ov);
|
|
QDECREF(pdict);
|
|
return obj;
|
|
}
|
|
|
|
|
|
int user_creatable_add_opts_foreach(void *opaque, QemuOpts *opts, Error **errp)
|
|
{
|
|
bool (*type_predicate)(const char *) = opaque;
|
|
Object *obj = 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, errp);
|
|
if (!obj) {
|
|
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), errp)) {
|
|
error_setg(errp, "object '%s' is in use, can not be deleted", id);
|
|
return;
|
|
}
|
|
object_unparent(obj);
|
|
}
|
|
|
|
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)
|