1 /* Iterate over a process's thread-specific data.
2 Copyright (C) 1999, 2000, 2001, 2002 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, see
18 <http://www.gnu.org/licenses/>. */
19
20 #include "thread_dbP.h"
21 #include <alloca.h>
22
23 td_err_e
td_ta_tsd_iter(const td_thragent_t * ta,td_key_iter_f * callback,void * cbdata_p)24 td_ta_tsd_iter (const td_thragent_t *ta, td_key_iter_f *callback,
25 void *cbdata_p)
26 {
27 struct pthread_key_struct *keys;
28 int pthread_keys_max;
29 int cnt;
30
31 LOG ("td_ta_tsd_iter");
32
33 /* Test whether the TA parameter is ok. */
34 if (! ta_ok (ta))
35 return TD_BADTA;
36
37 pthread_keys_max = ta->pthread_keys_max;
38 keys = (struct pthread_key_struct *) alloca (sizeof (keys[0])
39 * pthread_keys_max);
40
41 /* Read all the information about the keys. */
42 if (ps_pdread (ta->ph, ta->keys, keys,
43 sizeof (keys[0]) * pthread_keys_max) != PS_OK)
44 return TD_ERR; /* XXX Other error value? */
45
46 /* Now get all descriptors, one after the other. */
47 for (cnt = 0; cnt < pthread_keys_max; ++cnt)
48 if (keys[cnt].in_use
49 /* Return with an error if the callback returns a nonzero value. */
50 && callback (cnt, keys[cnt].destr, cbdata_p) != 0)
51 return TD_DBERR;
52
53 return TD_OK;
54 }
55