1 /* Definitions for POSIX 1003.1b-1993 (aka POSIX.4) scheduling interface.
2 Copyright (C) 1996 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 Library General Public License as
7 published by the Free Software Foundation; either version 2 of the
8 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 Library General Public License for more details.
15 You should have received a copy of the GNU Library General Public
16 License along with the GNU C Library; see the file COPYING.LIB. If not,
17 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA. */
25 /* Get type definitions. */
26 #include <bits/types.h>
27 #include <sys/time.h> /* for struct timespec */
29 /* Get system specific constant and data structure definitions. */
30 #include <bits/sched.h>
34 /* Set scheduling parameters for a process. */
35 extern int __sched_setparam __P ((__pid_t __pid,
36 __const struct sched_param *__param));
37 extern int sched_setparam __P ((__pid_t __pid,
38 __const struct sched_param *__param));
40 /* Retrieve scheduling parameters for a particular process. */
41 extern int __sched_getparam __P ((__pid_t __pid, struct sched_param *__param));
42 extern int sched_getparam __P ((__pid_t __pid, struct sched_param *__param));
44 /* Set scheduling algorithm and/or parameters for a process. */
45 extern int __sched_setscheduler __P ((__pid_t __pid, int __policy,
46 __const struct sched_param *__param));
47 extern int sched_setscheduler __P ((__pid_t __pid, int __policy,
48 __const struct sched_param *__param));
50 /* Retrieve scheduling algorithm for a particular purpose. */
51 extern int __sched_getscheduler __P ((__pid_t __pid));
52 extern int sched_getscheduler __P ((__pid_t __pid));
54 /* Yield the processor. */
55 extern int __sched_yield __P ((void));
56 extern int sched_yield __P ((void));
58 /* Get maximum priority value for a scheduler. */
59 extern int __sched_get_priority_max __P ((int __algorithm));
60 extern int sched_get_priority_max __P ((int __algorithm));
62 /* Get minimum priority value for a scheduler. */
63 extern int __sched_get_priority_min __P ((int __algorithm));
64 extern int sched_get_priority_min __P ((int __algorithm));
66 /* Get the SCHED_RR interval for the named process. */
67 extern int __sched_rr_get_interval __P ((__pid_t __pid, struct timespec *__t));
68 extern int sched_rr_get_interval __P ((__pid_t __pid, struct timespec *__t));