td_thr_set_event.c 1.9 KB

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  1. /* Enable specific event for thread.
  2. Copyright (C) 1999 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 Library General Public License as
  7. published by the Free Software Foundation; either version 2 of the
  8. 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. Library General Public License for more details.
  13. You should have received a copy of the GNU Library General Public
  14. License along with the GNU C Library; see the file COPYING.LIB. If not,
  15. write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  16. Boston, MA 02111-1307, USA. */
  17. #include <stddef.h>
  18. #include "thread_dbP.h"
  19. td_err_e
  20. td_thr_set_event (th, event)
  21. const td_thrhandle_t *th;
  22. td_thr_events_t *event;
  23. {
  24. td_thr_events_t old_event;
  25. int i;
  26. LOG (__FUNCTION__);
  27. /* Write the new value into the thread data structure. */
  28. if (ps_pdread (th->th_ta_p->ph,
  29. ((char *) th->th_unique
  30. + offsetof (struct _pthread_descr_struct,
  31. p_eventbuf.eventmask)),
  32. &old_event, sizeof (td_thrhandle_t)) != PS_OK)
  33. return TD_ERR; /* XXX Other error value? */
  34. /* Or the new bits in. */
  35. for (i = 0; i < TD_EVENTSIZE; ++i)
  36. old_event.event_bits[i] |= event->event_bits[i];
  37. /* Write the new value into the thread data structure. */
  38. if (ps_pdwrite (th->th_ta_p->ph,
  39. ((char *) th->th_unique
  40. + offsetof (struct _pthread_descr_struct,
  41. p_eventbuf.eventmask)),
  42. &old_event, sizeof (td_thrhandle_t)) != PS_OK)
  43. return TD_ERR; /* XXX Other error value? */
  44. return TD_OK;
  45. }