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/* Iterate over a process's thread-specific data.

   Copyright (C) 1999, 2000, 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"

#include <alloca.h>

td_err_e

td_ta_tsd_iter (const td_thragent_t *ta, td_key_iter_f *callback,

                void *cbdata_p)

{

  struct pthread_key_struct *keys;

  int pthread_keys_max;

  int cnt;

  LOG ("td_ta_tsd_iter");

  /* Test whether the TA parameter is ok.  */

  if (! ta_ok (ta))

    return TD_BADTA;

  pthread_keys_max = ta->pthread_keys_max;

  keys = (struct pthread_key_struct *) alloca (sizeof (keys[0])

                                               * pthread_keys_max);

  /* Read all the information about the keys.  */

  if (ps_pdread (ta->ph, ta->keys, keys,

                 sizeof (keys[0]) * pthread_keys_max) != PS_OK)

        return TD_ERR;  /* XXX Other error value?  */

  /* Now get all descriptors, one after the other.  */

  for (cnt = 0; cnt < pthread_keys_max; ++cnt)

    if (keys[cnt].in_use

        /* Return with an error if the callback returns a nonzero value.  */

        && callback (cnt, keys[cnt].destr, cbdata_p) != 0)

      return TD_DBERR;

  return TD_OK;

}