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- /* Iterate over a process's thread-specific data.
- Copyright (C) 1999,2000,2001,2002,2003 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper@redhat.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, see
- <http://www.gnu.org/licenses/>. */
- #include "thread_dbP.h"
- #include <alloca.h>
- td_err_e
- td_ta_tsd_iter (const td_thragent_t *ta_arg, td_key_iter_f *callback,
- void *cbdata_p)
- {
- td_thragent_t *const ta = (td_thragent_t *) ta_arg;
- td_err_e err;
- void *keys;
- size_t keys_nb, keys_elemsize;
- psaddr_t addr;
- uint32_t idx;
- LOG ("td_ta_tsd_iter");
- /* Test whether the TA parameter is ok. */
- if (! ta_ok (ta))
- return TD_BADTA;
- /* This makes sure we have the size information on hand. */
- addr = 0;
- err = _td_locate_field (ta,
- ta->ta_var___pthread_keys, SYM_DESC___pthread_keys,
- (psaddr_t) 0 + 1, &addr);
- if (err != TD_OK)
- return err;
- /* Now copy in the entire array of key descriptors. */
- keys_elemsize = (addr - (psaddr_t) 0) / 8;
- keys_nb = keys_elemsize * DB_DESC_NELEM (ta->ta_var___pthread_keys);
- keys = __alloca (keys_nb);
- err = DB_GET_SYMBOL (addr, ta, __pthread_keys);
- if (err != TD_OK)
- return err;
- if (ps_pdread (ta->ph, addr, keys, keys_nb) != PS_OK)
- return TD_ERR;
- /* Now get all descriptors, one after the other. */
- for (idx = 0; idx < DB_DESC_NELEM (ta->ta_var___pthread_keys); ++idx)
- {
- psaddr_t seq, destr;
- err = DB_GET_FIELD_LOCAL (seq, ta, keys, pthread_key_struct, seq, 0);
- if (err != TD_OK)
- return err;
- if (((uintptr_t) seq) & 1)
- {
- err = DB_GET_FIELD_LOCAL (destr, ta, keys, pthread_key_struct,
- destr, 0);
- if (err != TD_OK)
- return err;
- /* Return with an error if the callback returns a nonzero value. */
- if (callback ((thread_key_t) idx, destr, cbdata_p) != 0)
- return TD_DBERR;
- }
- /* Advance to the next element in the copied array. */
- keys += keys_elemsize;
- }
- return TD_OK;
- }
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