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/* Get thread information.
Copyright (C) 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <stddef.h>
#include <string.h>
#include "thread_dbP.h"
td_err_e
td_thr_get_info (const td_thrhandle_t *th, td_thrinfo_t *infop)
{
struct _pthread_descr_struct pds;
LOG ("td_thr_get_info");
/* Handle the case when the thread library is not yet initialized. */
if (th->th_unique == NULL)
{
memset (&pds, '\0', sizeof (pds));
pds.p_tid = PTHREAD_THREADS_MAX;
}
else
/* 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;
}
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