int lttng_kconsumer_get_produced_snapshot(struct lttng_consumer_stream *stream,
unsigned long *pos);
int lttng_kconsumer_get_consumed_snapshot(struct lttng_consumer_stream *stream,
int lttng_kconsumer_get_produced_snapshot(struct lttng_consumer_stream *stream,
unsigned long *pos);
int lttng_kconsumer_get_consumed_snapshot(struct lttng_consumer_stream *stream,