uint64_t *ts);
int (*sequence_number) (struct lttng_ust_lib_ring_buffer *buf,
struct lttng_ust_shm_handle *handle, uint64_t *seq);
uint64_t *ts);
int (*sequence_number) (struct lttng_ust_lib_ring_buffer *buf,
struct lttng_ust_shm_handle *handle, uint64_t *seq);