1 /* Disable 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.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Library General Public License as
8 published by the Free Software Foundation; either version 2 of the
9 License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Library General Public License for more details.
16 You should have received a copy of the GNU Library General Public
17 License along with the GNU C Library; see the file COPYING.LIB. If not,
18 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
23 #include "thread_dbP.h"
27 td_thr_clear_event (th
, event
)
28 const td_thrhandle_t
*th
;
29 td_thr_events_t
*event
;
31 td_thr_events_t old_event
;
36 /* Write the new value into the thread data structure. */
37 if (ps_pdread (th
->th_ta_p
->ph
,
38 ((char *) th
->th_unique
39 + offsetof (struct _pthread_descr_struct
,
40 p_eventbuf
.eventmask
)),
41 &old_event
, sizeof (td_thrhandle_t
)) != PS_OK
)
42 return TD_ERR
; /* XXX Other error value? */
44 /* Remove the set bits in. */
45 for (i
= 0; i
< TD_EVENTSIZE
; ++i
)
46 old_event
.event_bits
[i
] &= ~event
->event_bits
[i
];
48 /* Write the new value into the thread data structure. */
49 if (ps_pdwrite (th
->th_ta_p
->ph
,
50 ((char *) th
->th_unique
51 + offsetof (struct _pthread_descr_struct
,
52 p_eventbuf
.eventmask
)),
53 &old_event
, sizeof (td_thrhandle_t
)) != PS_OK
)
54 return TD_ERR
; /* XXX Other error value? */