+ * - session_triggers_ht:
+ * associates a session name to a list of
+ * struct lttng_trigger_list_nodes. The triggers in this list are
+ * those that have conditions that apply to a particular session.
+ * A session entry is only created when a session is created; the
+ * list of triggers applying to this new session is built at that
+ * moment. This happens at the time of creation of a session_info.
+ * Likewise, the list is destroyed at the time of the session_info's
+ * destruction.
+ *