xref: /illumos-gate/usr/src/head/sched.h (revision d4204c85a44d2589b9afff2c81db7044e97f2d1d)
17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate  * CDDL HEADER START
37c478bd9Sstevel@tonic-gate  *
47c478bd9Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*d4204c85Sraf  * Common Development and Distribution License (the "License").
6*d4204c85Sraf  * You may not use this file except in compliance with the License.
77c478bd9Sstevel@tonic-gate  *
87c478bd9Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
97c478bd9Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
107c478bd9Sstevel@tonic-gate  * See the License for the specific language governing permissions
117c478bd9Sstevel@tonic-gate  * and limitations under the License.
127c478bd9Sstevel@tonic-gate  *
137c478bd9Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
147c478bd9Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
157c478bd9Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
167c478bd9Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
177c478bd9Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
187c478bd9Sstevel@tonic-gate  *
197c478bd9Sstevel@tonic-gate  * CDDL HEADER END
207c478bd9Sstevel@tonic-gate  */
21*d4204c85Sraf 
227c478bd9Sstevel@tonic-gate /*
23*d4204c85Sraf  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
247c478bd9Sstevel@tonic-gate  * Use is subject to license terms.
257c478bd9Sstevel@tonic-gate  */
267c478bd9Sstevel@tonic-gate 
277c478bd9Sstevel@tonic-gate #ifndef	_SCHED_H
287c478bd9Sstevel@tonic-gate #define	_SCHED_H
297c478bd9Sstevel@tonic-gate 
307c478bd9Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
317c478bd9Sstevel@tonic-gate 
327c478bd9Sstevel@tonic-gate #include <sys/types.h>
337c478bd9Sstevel@tonic-gate #include <time.h>
347c478bd9Sstevel@tonic-gate 
357c478bd9Sstevel@tonic-gate #ifdef	__cplusplus
367c478bd9Sstevel@tonic-gate extern "C" {
377c478bd9Sstevel@tonic-gate #endif
387c478bd9Sstevel@tonic-gate 
397c478bd9Sstevel@tonic-gate struct sched_param {
40*d4204c85Sraf 	int	sched_priority;	/* scheduling priority */
41*d4204c85Sraf 	int	sched_pad[8];
427c478bd9Sstevel@tonic-gate };
437c478bd9Sstevel@tonic-gate 
447c478bd9Sstevel@tonic-gate /*
457c478bd9Sstevel@tonic-gate  * POSIX scheduling policies
467c478bd9Sstevel@tonic-gate  */
47*d4204c85Sraf #define	SCHED_OTHER	0	/* traditional time-sharing scheduling class */
48*d4204c85Sraf #define	SCHED_FIFO	1	/* real-time class: run to completion */
49*d4204c85Sraf #define	SCHED_RR	2	/* real-time class: round-robin */
50*d4204c85Sraf #define	SCHED_SYS	3	/* system scheduling class */
51*d4204c85Sraf #define	SCHED_IA	4	/* interactive time-sharing class */
52*d4204c85Sraf #define	SCHED_FSS	5	/* fair-share scheduling class */
53*d4204c85Sraf #define	SCHED_FX	6	/* fixed-priority scheduling class */
54*d4204c85Sraf #define	_SCHED_NEXT	7	/* first unassigned policy number */
557c478bd9Sstevel@tonic-gate 
567c478bd9Sstevel@tonic-gate /*
577c478bd9Sstevel@tonic-gate  * function prototypes
587c478bd9Sstevel@tonic-gate  */
597c478bd9Sstevel@tonic-gate #if	defined(__STDC__)
607c478bd9Sstevel@tonic-gate int	sched_getparam(pid_t, struct sched_param *);
617c478bd9Sstevel@tonic-gate int	sched_setparam(pid_t, const struct sched_param *);
627c478bd9Sstevel@tonic-gate int	sched_getscheduler(pid_t);
637c478bd9Sstevel@tonic-gate int	sched_setscheduler(pid_t, int, const struct sched_param *);
647c478bd9Sstevel@tonic-gate int	sched_yield(void);
657c478bd9Sstevel@tonic-gate int	sched_get_priority_max(int);
667c478bd9Sstevel@tonic-gate int	sched_get_priority_min(int);
677c478bd9Sstevel@tonic-gate int	sched_rr_get_interval(pid_t, struct timespec *);
687c478bd9Sstevel@tonic-gate #else
697c478bd9Sstevel@tonic-gate int	sched_getparam();
707c478bd9Sstevel@tonic-gate int	sched_setparam();
717c478bd9Sstevel@tonic-gate int	sched_getscheduler();
727c478bd9Sstevel@tonic-gate int	sched_setscheduler();
737c478bd9Sstevel@tonic-gate int	sched_yield();
747c478bd9Sstevel@tonic-gate int	sched_get_priority_max();
757c478bd9Sstevel@tonic-gate int	sched_get_priority_min();
767c478bd9Sstevel@tonic-gate int	sched_rr_get_interval();
777c478bd9Sstevel@tonic-gate #endif	/* __STDC__ */
787c478bd9Sstevel@tonic-gate 
797c478bd9Sstevel@tonic-gate #ifdef	__cplusplus
807c478bd9Sstevel@tonic-gate }
817c478bd9Sstevel@tonic-gate #endif
827c478bd9Sstevel@tonic-gate 
837c478bd9Sstevel@tonic-gate #endif	/* _SCHED_H */
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