FreeBSD/Linux Kernel Cross Reference
sys/posix4/sched.h
1 /*-
2 * Copyright (c) 1996, 1997
3 * HD Associates, Inc. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by HD Associates, Inc
16 * and Jukka Antero Ukkonen.
17 * 4. Neither the name of the author nor the names of any co-contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY HD ASSOCIATES AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL HD ASSOCIATES OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * $FreeBSD: releng/6.2/sys/posix4/sched.h 104398 2002-10-03 06:27:50Z mike $
34 */
35
36 /* sched.h: POSIX 1003.1b Process Scheduling header */
37
38 #ifndef _SCHED_H_
39 #define _SCHED_H_
40
41 #include <sys/_types.h>
42
43 #ifndef _PID_T_DECLARED
44 typedef __pid_t pid_t;
45 #define _PID_T_DECLARED
46 #endif
47
48 /*
49 * Scheduling policies
50 */
51 #define SCHED_FIFO 1
52 #define SCHED_OTHER 2
53 #define SCHED_RR 3
54
55 struct sched_param {
56 int sched_priority;
57 };
58
59 #ifndef _KERNEL
60 #include <sys/cdefs.h>
61
62 struct timespec;
63
64 __BEGIN_DECLS
65 int sched_get_priority_max(int);
66 int sched_get_priority_min(int);
67 int sched_getparam(pid_t, struct sched_param *);
68 int sched_getscheduler(pid_t);
69 int sched_rr_get_interval(pid_t, struct timespec *);
70 int sched_setparam(pid_t, const struct sched_param *);
71 int sched_setscheduler(pid_t, int, const struct sched_param *);
72 int sched_yield(void);
73 __END_DECLS
74
75 #endif
76
77 #endif /* !_SCHED_H_ */
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