Fix parameter name.
[glibc.git] / nptl / pthread_setschedparam.c
blob3084836ad8354e63ca25276a0b353ac1ae60b38f
1 /* Copyright (C) 2002, 2003 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, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18 02111-1307 USA. */
20 #include <errno.h>
21 #include <sched.h>
22 #include <string.h>
23 #include "pthreadP.h"
24 #include <lowlevellock.h>
27 int
28 __pthread_setschedparam (threadid, policy, param)
29 pthread_t threadid;
30 int policy;
31 const struct sched_param *param;
33 struct pthread *pd = (struct pthread *) threadid;
35 /* Make sure the descriptor is valid. */
36 if (INVALID_TD_P (pd))
37 /* Not a valid thread handle. */
38 return ESRCH;
40 int result = 0;
42 /* We have to handle cancellation in the following code since we are
43 locking another threads desriptor. */
44 pthread_cleanup_push ((void (*) (void *)) lll_unlock_wake_cb, &pd->lock);
46 lll_lock (pd->lock);
48 /* Try to set the scheduler information. */
49 if (__builtin_expect (__sched_setscheduler (pd->tid, policy,
50 param) == -1, 0))
51 result = errno;
52 else
54 /* We succeeded changing the kernel information. Reflect this
55 change in the thread descriptor. */
56 pd->schedpolicy = policy;
57 memcpy (&pd->schedparam, param, sizeof (struct sched_param));
60 lll_unlock (pd->lock);
62 pthread_cleanup_pop (0);
64 return result;
66 strong_alias (__pthread_setschedparam, pthread_setschedparam)