1 /* pthread_condattr_setclock. Generic version.
2 Copyright (C) 2002-2023 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
20 #include <pt-internal.h>
23 pthread_condattr_setclock (pthread_condattr_t
*attr
, clockid_t clock
)
25 /* Only a few clocks are allowed. CLOCK_REALTIME is always allowed.
26 CLOCK_MONOTONIC only if the kernel has the necessary support. */
27 if (clock
== CLOCK_MONOTONIC
)
29 /* Check whether the clock is available. */
37 res
= clock_gettime (CLOCK_MONOTONIC
, &ts
);
38 avail
= res
< 0 ? -1 : 1;
45 else if (clock
!= CLOCK_REALTIME
)
48 attr
->__clock
= clock
;