td_ta_clear_event.c 1.7 KB

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  1. /* Globally disable events.
  2. Copyright (C) 1999, 2001, 2005 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, see
  15. <http://www.gnu.org/licenses/>. */
  16. #include "thread_dbP.h"
  17. td_err_e
  18. td_ta_clear_event(const td_thragent_t *ta, td_thr_events_t *event)
  19. {
  20. td_thr_events_t old_event;
  21. int i;
  22. LOG ("td_ta_clear_event");
  23. /* Test whether the TA parameter is ok. */
  24. if (! ta_ok (ta))
  25. return TD_BADTA;
  26. /* Write the new value into the thread data structure. */
  27. if (ps_pdread (ta->ph, ta->pthread_threads_eventsp,
  28. &old_event, sizeof (td_thr_events_t)) != PS_OK)
  29. return TD_ERR; /* XXX Other error value? */
  30. /* Remove the set bits in. */
  31. for (i = 0; i < TD_EVENTSIZE; ++i)
  32. old_event.event_bits[i] &= ~event->event_bits[i];
  33. /* Write the new value into the thread data structure. */
  34. if (ps_pdwrite (ta->ph, ta->pthread_threads_eventsp,
  35. &old_event, sizeof (td_thr_events_t)) != PS_OK)
  36. return TD_ERR; /* XXX Other error value? */
  37. return TD_OK;
  38. }