if (ps_pdread (th->th_ta_p->ph, th->th_unique, &pds, th->th_ta_p->sizeof_descr) != PS_OK) return TD_ERR;
if (th->th_unique == NULL) { memset (&pds, '\0', sizeof (pds)); pds.p_tid = PTHREAD_THREADS_MAX; } else  if (ps_pdread (th->th_ta_p->ph, th->th_unique, &pds, th->th_ta_p->sizeof_descr) != PS_OK) return TD_ERR;
td_thr_get_info (const td_thrhandle_t *th, td_thrinfo_t *infop){  struct _pthread_descr_struct pds;  LOG ("td_thr_get_info");  /* Get the thread descriptor.  */  if (ps_pdread (th->th_ta_p->ph, th->th_unique, &pds,		 th->th_ta_p->sizeof_descr) != PS_OK)    return TD_ERR;	/* XXX Other error value?  */  /* Fill in information.  Clear first to provide reproducable     results for the fields we do not fill in.  */  memset (infop, '\0', sizeof (td_thrinfo_t));  /* We have to handle the manager thread special since the thread     descriptor in older versions is not fully initialized.  */  if (pds.p_nr == 1)    {      infop->ti_tid = th->th_ta_p->pthread_threads_max * 2 + 1;      infop->ti_type = TD_THR_SYSTEM;      infop->ti_state = TD_THR_ACTIVE;    }  else    {      infop->ti_tid = pds.p_tid;      infop->ti_tls = (char *) pds.p_specific;      infop->ti_pri = pds.p_priority;      infop->ti_type = TD_THR_USER;            if (! pds.p_terminated)	/* XXX For now there is no way to get more information.  */	infop->ti_state = TD_THR_ACTIVE;      else if (! pds.p_detached)	infop->ti_state = TD_THR_ZOMBIE;      else	infop->ti_state = TD_THR_UNKNOWN;    }  /* Initialization which are the same in both cases.  */  infop->ti_lid = pds.p_pid ?: ps_getpid (th->th_ta_p->ph);  infop->ti_ta_p = th->th_ta_p;  infop->ti_startfunc = pds.p_start_args.start_routine;  memcpy (&infop->ti_events, &pds.p_eventbuf.eventmask,	  sizeof (td_thr_events_t));  infop->ti_traceme = pds.p_report_events != 0;  return TD_OK;}