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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libc/] [sys/] [linux/] [linuxthreads/] [td_thr_get_info.c] - Blame information for rev 207

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1 207 jeremybenn
/* Get thread information.
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   Copyright (C) 1999, 2000 Free Software Foundation, Inc.
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   This file is part of the GNU C Library.
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   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999.
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   The GNU C Library is free software; you can redistribute it and/or
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   modify it under the terms of the GNU Lesser General Public
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   License as published by the Free Software Foundation; either
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   version 2.1 of the License, or (at your option) any later version.
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   The GNU C Library is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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   Lesser General Public License for more details.
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   You should have received a copy of the GNU Lesser General Public
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   License along with the GNU C Library; if not, write to the Free
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   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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   02111-1307 USA.  */
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#include <stddef.h>
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#include <string.h>
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#include "thread_dbP.h"
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td_err_e
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td_thr_get_info (const td_thrhandle_t *th, td_thrinfo_t *infop)
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{
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  struct _pthread_descr_struct pds;
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  LOG ("td_thr_get_info");
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  /* Get the thread descriptor.  */
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  if (ps_pdread (th->th_ta_p->ph, th->th_unique, &pds,
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                 th->th_ta_p->sizeof_descr) != PS_OK)
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    return TD_ERR;      /* XXX Other error value?  */
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  /* Fill in information.  Clear first to provide reproducable
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     results for the fields we do not fill in.  */
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  memset (infop, '\0', sizeof (td_thrinfo_t));
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  /* We have to handle the manager thread special since the thread
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     descriptor in older versions is not fully initialized.  */
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  if (pds.p_nr == 1)
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    {
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      infop->ti_tid = th->th_ta_p->pthread_threads_max * 2 + 1;
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      infop->ti_type = TD_THR_SYSTEM;
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      infop->ti_state = TD_THR_ACTIVE;
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    }
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  else
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    {
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      infop->ti_tid = pds.p_tid;
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      infop->ti_tls = (char *) pds.p_specific;
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      infop->ti_pri = pds.p_priority;
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      infop->ti_type = TD_THR_USER;
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      if (! pds.p_terminated)
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        /* XXX For now there is no way to get more information.  */
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        infop->ti_state = TD_THR_ACTIVE;
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      else if (! pds.p_detached)
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        infop->ti_state = TD_THR_ZOMBIE;
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      else
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        infop->ti_state = TD_THR_UNKNOWN;
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    }
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  /* Initialization which are the same in both cases.  */
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  infop->ti_lid = pds.p_pid ?: ps_getpid (th->th_ta_p->ph);
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  infop->ti_ta_p = th->th_ta_p;
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  infop->ti_startfunc = pds.p_start_args.start_routine;
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  memcpy (&infop->ti_events, &pds.p_eventbuf.eventmask,
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          sizeof (td_thr_events_t));
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  infop->ti_traceme = pds.p_report_events != 0;
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  return TD_OK;
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}

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