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/* Disable specific event for thread.
Copyright (C) 1999, 2001, 2002, 2005 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(const td_thrhandle_t *th,td_thr_events_t *event)
{
td_thr_events_t old_event;
int i;
LOG ("td_thr_clear_event");
/* If the thread descriptor has not yet been constructed do not do
anything. */
if (th->th_unique == NULL)
return TD_OK;
/* 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_thr_events_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_thr_events_t)) != PS_OK)
return TD_ERR; /* XXX Other error value? */
return TD_OK;
}
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