extern void utcp_set_accept_cb(struct utcp *utcp, utcp_accept_t accept, utcp_pre_accept_t pre_accept);
extern bool utcp_is_active(struct utcp *utcp);
extern void utcp_abort_all_connections(struct utcp *utcp);
extern void utcp_set_accept_cb(struct utcp *utcp, utcp_accept_t accept, utcp_pre_accept_t pre_accept);
extern bool utcp_is_active(struct utcp *utcp);
extern void utcp_abort_all_connections(struct utcp *utcp);