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1/* pthread_condattr_setclock. Generic version.
2 Copyright (C) 2002-2019 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
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.
9
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.
14
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 <http://www.gnu.org/licenses/>. */
18
19#include <pthread.h>
20#include <pt-internal.h>
21
22int
23pthread_condattr_setclock (pthread_condattr_t *attr, clockid_t clock)
24{
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)
28 {
29 /* Check whether the clock is available. */
30 static int avail;
31
32 if (avail == 0)
33 {
34 struct timespec ts;
35 int res;
36
37 res = clock_gettime (CLOCK_MONOTONIC, &ts);
38 avail = res < 0 ? -1 : 1;
39 }
40
41 if (avail < 0)
42 /* Not available. */
43 return EINVAL;
44 }
45 else if (clock != CLOCK_REALTIME)
46 return EINVAL;
47
48 attr->__clock = clock;
49
50 return 0;
51}
52

Warning: That file was not part of the compilation database. It may have many parsing errors.