td_ta_tsd_iter.c 1.9 KB

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  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. The GNU C Library is free software; you can redistribute it and/or
  6. modify it under the terms of the GNU Lesser General Public
  7. License as published by the Free Software Foundation; either
  8. version 2.1 of the License, or (at your option) any later version.
  9. The GNU C Library is distributed in the hope that it will be useful,
  10. but WITHOUT ANY WARRANTY; without even the implied warranty of
  11. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  12. Lesser General Public License for more details.
  13. You should have received a copy of the GNU Lesser General Public
  14. License along with the GNU C Library; if not, write to the Free
  15. Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  16. 02111-1307 USA. */
  17. #include "thread_dbP.h"
  18. #include "../linuxthreads/internals.h"
  19. #include <alloca.h>
  20. td_err_e
  21. td_ta_tsd_iter (const td_thragent_t *ta, td_key_iter_f *callback,
  22. void *cbdata_p)
  23. {
  24. struct pthread_key_struct *keys;
  25. int pthread_keys_max;
  26. int cnt;
  27. LOG ("td_ta_tsd_iter");
  28. /* Test whether the TA parameter is ok. */
  29. if (! ta_ok (ta))
  30. return TD_BADTA;
  31. pthread_keys_max = ta->pthread_keys_max;
  32. keys = (struct pthread_key_struct *) alloca (sizeof (keys[0])
  33. * pthread_keys_max);
  34. /* Read all the information about the keys. */
  35. if (ps_pdread (ta->ph, ta->keys, keys,
  36. sizeof (keys[0]) * pthread_keys_max) != PS_OK)
  37. return TD_ERR; /* XXX Other error value? */
  38. /* Now get all descriptors, one after the other. */
  39. for (cnt = 0; cnt < pthread_keys_max; ++cnt)
  40. if (keys[cnt].in_use
  41. /* Return with an error if the callback returns a nonzero value. */
  42. && callback (cnt, keys[cnt].destr, cbdata_p) != 0)
  43. return TD_DBERR;
  44. return TD_OK;
  45. }