mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-24 11:41:07 +00:00
71 lines
2.4 KiB
C
71 lines
2.4 KiB
C
|
/* Validate a thread handle.
|
||
|
|
Copyright (C) 1999, 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, write to the Free
|
||
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
||
|
|
02111-1307 USA. */
|
||
|
|
|
||
|
|
#include "thread_dbP.h"
|
||
|
|
#include <linuxthreads/internals.h>
|
||
|
|
|
||
|
|
|
||
|
|
td_err_e
|
||
|
|
td_thr_validate (const td_thrhandle_t *th)
|
||
|
|
{
|
||
|
|
struct pthread_handle_struct *handles = th->th_ta_p->handles;
|
||
|
|
int pthread_threads_max = th->th_ta_p->pthread_threads_max;
|
||
|
|
int cnt;
|
||
|
|
struct pthread_handle_struct phc;
|
||
|
|
|
||
|
|
LOG ("td_thr_validate");
|
||
|
|
|
||
|
|
/* A special case: if the program just starts up the handle is
|
||
|
|
NULL. */
|
||
|
|
if (th->th_unique == NULL)
|
||
|
|
{
|
||
|
|
/* Read the first handle. If the pointer to the thread
|
||
|
|
descriptor is not NULL this is an error. */
|
||
|
|
if (ps_pdread (th->th_ta_p->ph, handles, &phc,
|
||
|
|
sizeof (struct pthread_handle_struct)) != PS_OK)
|
||
|
|
return TD_ERR; /* XXX Other error value? */
|
||
|
|
|
||
|
|
return phc.h_descr == NULL ? TD_OK : TD_NOTHR;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Now get all descriptors, one after the other. */
|
||
|
|
for (cnt = 0; cnt < pthread_threads_max; ++cnt, ++handles)
|
||
|
|
{
|
||
|
|
if (ps_pdread (th->th_ta_p->ph, handles, &phc,
|
||
|
|
sizeof (struct pthread_handle_struct)) != PS_OK)
|
||
|
|
return TD_ERR; /* XXX Other error value? */
|
||
|
|
|
||
|
|
if (phc.h_descr != NULL && phc.h_descr == th->th_unique)
|
||
|
|
{
|
||
|
|
struct _pthread_descr_struct pds;
|
||
|
|
|
||
|
|
if (ps_pdread (th->th_ta_p->ph, phc.h_descr, &pds,
|
||
|
|
th->th_ta_p->sizeof_descr) != PS_OK)
|
||
|
|
return TD_ERR; /* XXX Other error value? */
|
||
|
|
|
||
|
|
/* XXX There should be another test using the TID but this is
|
||
|
|
currently not available. */
|
||
|
|
return pds.p_terminated != 0 ? TD_NOTHR : TD_OK;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return TD_ERR;
|
||
|
|
}
|