mirror of
git://sourceware.org/git/glibc.git
synced 2024-12-09 04:11:27 +08:00
63 lines
2.0 KiB
C
63 lines
2.0 KiB
C
/* Disable specific event for thread.
|
|
Copyright (C) 1999, 2001, 2002 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 ("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_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;
|
|
}
|