text: /* Disable specific event for thread.
     Copyright (C) 1999 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 <stddef.h>
  
  #include "thread_dbP.h"
  
  
  td_err_e
  td_thr_clear_event (th, event)
       const td_thrhandle_t *th;
       td_thr_events_t *event;
  {
    td_thr_events_t old_event;
    int i;
  
    LOG (__FUNCTION__);
  
    /* Write the new value into the thread data structure.  */
    if (ps_pdread (th->th_ta_p->ph,
  		 ((char *) th->th_unique
  		  + offsetof (struct _pthread_descr_struct,
  			      p_eventbuf.eventmask)),
  		 &old_event, sizeof (td_thrhandle_t)) != PS_OK)
      return TD_ERR;	/* XXX Other error value?  */
  
    /* Remove the set bits in.  */
    for (i = 0; i < TD_EVENTSIZE; ++i)
      old_event.event_bits[i] &= ~event->event_bits[i];
  
    /* Write the new value into the thread data structure.  */
    if (ps_pdwrite (th->th_ta_p->ph,
  		  ((char *) th->th_unique
  		   + offsetof (struct _pthread_descr_struct,
  			       p_eventbuf.eventmask)),
  		  &old_event, sizeof (td_thrhandle_t)) != PS_OK)
      return TD_ERR;	/* XXX Other error value?  */
  
    return TD_OK;
  }
  