size_t (*record_header_size) (const struct lttng_ust_lib_ring_buffer_config *config,
struct channel *chan, size_t offset,
size_t *pre_header_padding,
- struct lttng_ust_lib_ring_buffer_ctx *ctx);
+ struct lttng_ust_lib_ring_buffer_ctx *ctx,
+ void *client_ctx);
/* Slow path only, at subbuffer switch */
size_t (*subbuffer_header_size) (void);