1 /* Get the number of threads in the process.
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, see
18 <http://www.gnu.org/licenses/>. */
19
20 #include "thread_dbP.h"
21
22 td_err_e
td_ta_get_nthreads(const td_thragent_t * ta,int * np)23 td_ta_get_nthreads (const td_thragent_t *ta, int *np)
24 {
25 psaddr_t addr;
26
27 LOG ("td_ta_get_nthreads");
28
29 /* Test whether the TA parameter is ok. */
30 if (! ta_ok (ta))
31 return TD_BADTA;
32
33 /* Access the variable `__pthread_handles_num'. */
34 if (td_lookup (ta->ph, PTHREAD_HANDLES_NUM, &addr) != PS_OK)
35 return TD_ERR; /* XXX Other error value? */
36
37 if (ps_pdread (ta->ph, addr, np, sizeof (int)) != PS_OK)
38 return TD_ERR; /* XXX Other error value? */
39
40 return TD_OK;
41 }
42