int lttng_ustconsumer_get_current_timestamp(
struct lttng_consumer_stream *stream, uint64_t *ts);
int lttng_ustconsumer_get_sequence_number(
int lttng_ustconsumer_get_current_timestamp(
struct lttng_consumer_stream *stream, uint64_t *ts);
int lttng_ustconsumer_get_sequence_number(