int relayd_version_check(struct lttcomm_sock *sock, uint32_t major,
uint32_t minor);
int relayd_start_data(struct lttcomm_sock *sock);
int relayd_send_metadata(struct lttcomm_sock *sock, size_t len);
int relayd_send_data_hdr(struct lttcomm_sock *sock,
struct lttcomm_relayd_data_hdr *hdr, size_t size);
int relayd_version_check(struct lttcomm_sock *sock, uint32_t major,
uint32_t minor);
int relayd_start_data(struct lttcomm_sock *sock);
int relayd_send_metadata(struct lttcomm_sock *sock, size_t len);
int relayd_send_data_hdr(struct lttcomm_sock *sock,
struct lttcomm_relayd_data_hdr *hdr, size_t size);