1 /* Validate a thread handle.
2 Copyright (C) 1999, 2001 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999.
5
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
10
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, write to the Free
18 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19 02111-1307 USA. */
20
21 #include "thread_dbP.h"
22
23
24 td_err_e
td_thr_validate(const td_thrhandle_t * th)25 td_thr_validate (const td_thrhandle_t *th)
26 {
27 struct pthread_handle_struct *handles = th->th_ta_p->handles;
28 int pthread_threads_max = th->th_ta_p->pthread_threads_max;
29 int cnt;
30
31 LOG ("td_thr_validate");
32
33 /* Now get all descriptors, one after the other. */
34 for (cnt = 0; cnt < pthread_threads_max; ++cnt, ++handles)
35 {
36 struct pthread_handle_struct phc;
37
38 if (ps_pdread (th->th_ta_p->ph, handles, &phc,
39 sizeof (struct pthread_handle_struct)) != PS_OK)
40 return TD_ERR; /* XXX Other error value? */
41
42 if (phc.h_descr != NULL && phc.h_descr == th->th_unique)
43 {
44 struct _pthread_descr_struct pds;
45
46 if (ps_pdread (th->th_ta_p->ph, phc.h_descr, &pds,
47 th->th_ta_p->sizeof_descr) != PS_OK)
48 return TD_ERR; /* XXX Other error value? */
49
50 /* XXX There should be another test using the TID but this is
51 currently not available. */
52 return pds.p_terminated != 0 ? TD_NOTHR : TD_OK;
53 }
54 }
55
56 return TD_ERR;
57 }
58