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-rw-r--r--qom/object_interfaces.c174
1 files changed, 174 insertions, 0 deletions
diff --git a/qom/object_interfaces.c b/qom/object_interfaces.c
index f1218f0cc1..c2f6e2998e 100644
--- a/qom/object_interfaces.c
+++ b/qom/object_interfaces.c
@@ -1,6 +1,9 @@
#include "qemu/osdep.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)
{
@@ -31,6 +34,177 @@ bool user_creatable_can_be_deleted(UserCreatable *uc, Error **errp)
}
}
+
+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 = {