Refactoring: introduce list head from enabler getter

[lttng-modules.git] / include / lttng / events-internal.h

diff --git a/include/lttng/events-internal.h b/include/lttng/events-internal.h
index ee052dd1fb8056e6f87af1bfdf26099136feae95..21d887f03f80f65410809540e6ae9e4543ac01d1 100644 (file)
--- a/include/lttng/events-internal.h
+++ b/include/lttng/events-internal.h
@@ -614,6 +614,27 @@ struct lttng_event_ht *lttng_get_event_ht_from_enabler(struct lttng_event_enable
        }
 }
 
+static inline
+struct list_head *lttng_get_event_list_head_from_enabler(struct lttng_event_enabler_common *event_enabler)
+{
+       switch (event_enabler->enabler_type) {
+       case LTTNG_EVENT_ENABLER_TYPE_RECORDER:
+       {
+               struct lttng_event_recorder_enabler *event_recorder_enabler =
+                       container_of(event_enabler, struct lttng_event_recorder_enabler, parent);
+               return &event_recorder_enabler->chan->parent.session->priv->events;
+       }
+       case LTTNG_EVENT_ENABLER_TYPE_NOTIFIER:
+       {
+               struct lttng_event_notifier_enabler *event_notifier_enabler =
+                       container_of(event_enabler, struct lttng_event_notifier_enabler, parent);
+               return &event_notifier_enabler->group->event_notifiers_head;
+       }
+       default:
+               return NULL;
+       }
+}
+
 int lttng_context_init(void);
 void lttng_context_exit(void);
 int lttng_kernel_context_append(struct lttng_kernel_ctx **ctx_p,