const lttng_ust_ctl_field *end,
const session_attributes& session_attributes,
const lttng_ust_ctl_field **next_ust_ctl_field,
const lttng_ust_ctl_field *end,
const session_attributes& session_attributes,
const lttng_ust_ctl_field **next_ust_ctl_field,