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63 lines
2.0 KiB
C
63 lines
2.0 KiB
C
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/* Enable specific event for thread.
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Copyright (C) 1999, 2001, 2002 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1999.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#include <stddef.h>
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#include "thread_dbP.h"
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td_err_e
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td_thr_set_event (th, event)
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const td_thrhandle_t *th;
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td_thr_events_t *event;
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{
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td_thr_events_t old_event;
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int i;
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LOG ("td_thr_set_event");
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/* What shall we do if no thread descriptor exists but the user
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wants to set an event? */
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if (th->th_unique == NULL)
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return TD_NOTALLOC;
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/* Write the new value into the thread data structure. */
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if (ps_pdread (th->th_ta_p->ph,
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((char *) th->th_unique
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+ offsetof (struct _pthread_descr_struct,
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p_eventbuf.eventmask)),
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&old_event, sizeof (td_thrhandle_t)) != PS_OK)
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return TD_ERR; /* XXX Other error value? */
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/* Or the new bits in. */
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for (i = 0; i < TD_EVENTSIZE; ++i)
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old_event.event_bits[i] |= event->event_bits[i];
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/* Write the new value into the thread data structure. */
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if (ps_pdwrite (th->th_ta_p->ph,
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((char *) th->th_unique
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+ offsetof (struct _pthread_descr_struct,
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p_eventbuf.eventmask)),
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&old_event, sizeof (td_thrhandle_t)) != PS_OK)
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return TD_ERR; /* XXX Other error value? */
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return TD_OK;
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}
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