+static int lttng_ust_event_notifier_enabler_create(int event_notifier_group_obj,
+ void *owner, struct lttng_ust_event_notifier *event_notifier_param,
+ enum lttng_enabler_format_type type)
+{
+ struct lttng_event_notifier_group *event_notifier_group =
+ objd_private(event_notifier_group_obj);
+ struct lttng_event_notifier_enabler *event_notifier_enabler;
+ int event_notifier_objd, ret;
+
+ event_notifier_param->event.name[LTTNG_UST_SYM_NAME_LEN - 1] = '\0';
+ event_notifier_objd = objd_alloc(NULL, <tng_event_notifier_enabler_ops, owner,
+ "event_notifier enabler");
+ if (event_notifier_objd < 0) {
+ ret = event_notifier_objd;
+ goto objd_error;
+ }
+
+ event_notifier_enabler = lttng_event_notifier_enabler_create(
+ event_notifier_group, type, event_notifier_param);
+ if (!event_notifier_enabler) {
+ ret = -ENOMEM;
+ goto event_notifier_error;
+ }
+
+ objd_set_private(event_notifier_objd, event_notifier_enabler);
+ /* The event_notifier holds a reference on the event_notifier group. */
+ objd_ref(event_notifier_enabler->group->objd);
+
+ return event_notifier_objd;
+
+event_notifier_error:
+ {
+ int err;
+
+ err = lttng_ust_objd_unref(event_notifier_objd, 1);
+ assert(!err);
+ }
+objd_error:
+ return ret;
+}
+
+static
+long lttng_event_notifier_enabler_cmd(int objd, unsigned int cmd, unsigned long arg,
+ union ust_args *uargs, void *owner)
+{
+ struct lttng_event_notifier_enabler *event_notifier_enabler = objd_private(objd);
+ switch (cmd) {
+ case LTTNG_UST_FILTER:
+ return lttng_event_notifier_enabler_attach_bytecode(event_notifier_enabler,
+ (struct lttng_ust_filter_bytecode_node *) arg);
+ case LTTNG_UST_EXCLUSION:
+ return lttng_event_notifier_enabler_attach_exclusion(event_notifier_enabler,
+ (struct lttng_ust_excluder_node *) arg);
+ case LTTNG_UST_ENABLE:
+ return lttng_event_notifier_enabler_enable(event_notifier_enabler);
+ case LTTNG_UST_DISABLE:
+ return lttng_event_notifier_enabler_disable(event_notifier_enabler);
+ default:
+ return -EINVAL;
+ }
+}
+
+static
+long lttng_event_notifier_group_cmd(int objd, unsigned int cmd, unsigned long arg,
+ union ust_args *uargs, void *owner)
+{
+ switch (cmd) {
+ case LTTNG_UST_EVENT_NOTIFIER_CREATE:
+ {
+ struct lttng_ust_event_notifier *event_notifier_param =
+ (struct lttng_ust_event_notifier *) arg;
+ if (strutils_is_star_glob_pattern(event_notifier_param->event.name)) {
+ /*
+ * If the event name is a star globbing pattern,
+ * we create the special star globbing enabler.
+ */
+ return lttng_ust_event_notifier_enabler_create(objd,
+ owner, event_notifier_param,
+ LTTNG_ENABLER_FORMAT_STAR_GLOB);
+ } else {
+ return lttng_ust_event_notifier_enabler_create(objd,
+ owner, event_notifier_param,
+ LTTNG_ENABLER_FORMAT_EVENT);
+ }
+ }
+ default:
+ return -EINVAL;
+ }
+}
+
+static
+int lttng_event_notifier_enabler_release(int objd)
+{
+ struct lttng_event_notifier_enabler *event_notifier_enabler = objd_private(objd);
+
+ if (event_notifier_enabler)
+ return lttng_ust_objd_unref(event_notifier_enabler->group->objd, 0);
+ return 0;
+}
+
+static const struct lttng_ust_objd_ops lttng_event_notifier_enabler_ops = {
+ .release = lttng_event_notifier_enabler_release,
+ .cmd = lttng_event_notifier_enabler_cmd,
+};
+
+static
+int lttng_release_event_notifier_group(int objd)
+{
+ struct lttng_event_notifier_group *event_notifier_group = objd_private(objd);
+
+ if (event_notifier_group) {
+ lttng_event_notifier_group_destroy(event_notifier_group);
+ return 0;
+ } else {
+ return -EINVAL;
+ }
+}
+
+static const struct lttng_ust_objd_ops lttng_event_notifier_group_ops = {
+ .release = lttng_release_event_notifier_group,
+ .cmd = lttng_event_notifier_group_cmd,
+};
+