struct tcb  {
       char    tcb_id[8];
       char    tp_name[64];
       char    own_lu_id[8];
       char    fully_qualified_lu_name[8];
       char    low_instance[8];
       int     low_sequence_number;
       struct  lucb *p_lucb; /* pointer to own loc. LUCB*/
       struct  rcb *rcb_ptr;
       char    ctl_comp;
       char    init_security[8];
       char    profile[4];
       int     cur_conv; /* total namber of conv. for this tr.prog.*/
       int     userid;
       struct  rcb *rcb_list_ptr ; /* указатель на список rcb  */
       struct  tcb *prev;
       struct  tcb *next;
       int short tp_fd; /* FiFo descriptor for TP */
       int short tp_pid;
       };