1 /* Copyright (C) 2002, 2004, 2009 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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 <assert.h>
20 #include <errno.h>
21 #include <string.h>
22 #include "pthreadP.h"
23
24
25 int
26 attribute_protected
__pthread_attr_setschedparam(pthread_attr_t * attr,const struct sched_param * param)27 __pthread_attr_setschedparam (
28 pthread_attr_t *attr,
29 const struct sched_param *param)
30 {
31 assert (sizeof (*attr) >= sizeof (struct pthread_attr));
32 struct pthread_attr *iattr = (struct pthread_attr *) attr;
33
34 int min = sched_get_priority_min (iattr->schedpolicy);
35 int max = sched_get_priority_max (iattr->schedpolicy);
36 if (min == -1 || max == -1
37 || param->sched_priority > max || param->sched_priority < min)
38 return EINVAL;
39
40 /* Copy the new values. */
41 memcpy (&iattr->schedparam, param, sizeof (struct sched_param));
42
43 /* Remember we set the value. */
44 iattr->flags |= ATTR_FLAG_SCHED_SET;
45
46 return 0;
47 }
48 strong_alias (__pthread_attr_setschedparam, pthread_attr_setschedparam)
49