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84 lines
2.7 KiB
C
84 lines
2.7 KiB
C
/* Get thread information.
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Copyright (C) 1999, 2000, 2001, 2002 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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/* Handle the case when the thread library is not yet initialized. */
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if (th->th_unique == NULL)
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{
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memset (&pds, '\0', sizeof (pds));
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pds.p_tid = PTHREAD_THREADS_MAX;
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}
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else
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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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