1 /* Copyright (C) 2002-2013 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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 <http://www.gnu.org/licenses/>. */
23 #include <lowlevellock.h>
27 __pthread_setschedparam (threadid, policy, param)
30 const struct sched_param *param;
32 struct pthread *pd = (struct pthread *) threadid;
34 /* Make sure the descriptor is valid. */
35 if (INVALID_TD_P (pd))
36 /* Not a valid thread handle. */
41 lll_lock (pd->lock, LLL_PRIVATE);
44 const struct sched_param *orig_param = param;
46 /* If the thread should have higher priority because of some
47 PTHREAD_PRIO_PROTECT mutexes it holds, adjust the priority. */
48 if (__builtin_expect (pd->tpp != NULL, 0)
49 && pd->tpp->priomax > param->sched_priority)
52 p.sched_priority = pd->tpp->priomax;
56 /* Try to set the scheduler information. */
57 if (__builtin_expect (__sched_setscheduler (pd->tid, policy,
62 /* We succeeded changing the kernel information. Reflect this
63 change in the thread descriptor. */
64 pd->schedpolicy = policy;
65 memcpy (&pd->schedparam, orig_param, sizeof (struct sched_param));
66 pd->flags |= ATTR_FLAG_SCHED_SET | ATTR_FLAG_POLICY_SET;
69 lll_unlock (pd->lock, LLL_PRIVATE);
73 strong_alias (__pthread_setschedparam, pthread_setschedparam)