mirror of https://github.com/openbsd/src.git
76 lines
2.6 KiB
C
76 lines
2.6 KiB
C
/* $OpenBSD: sched.h,v 1.1 2017/10/15 23:40:33 guenther Exp $ */
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/* sched.h: POSIX 1003.1b Process Scheduling header */
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/*-
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* Copyright (c) 1996, 1997
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* HD Associates, Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by HD Associates, Inc
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* and Jukka Antero Ukkonen.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY HD ASSOCIATES AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL HD ASSOCIATES OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#ifndef _SCHED_H_
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#define _SCHED_H_
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#include <sys/types.h> /* For pid_t */
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#include <time.h> /* Per P1003.4 */
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/* Scheduling policies
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*/
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#define SCHED_FIFO 1
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#define SCHED_OTHER 2
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#define SCHED_RR 3
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struct sched_param
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{
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int sched_priority;
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};
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__BEGIN_DECLS
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#if 0 /* not yet */
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int sched_setparam(pid_t, const struct sched_param *);
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int sched_getparam(pid_t, struct sched_param *);
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int sched_setscheduler(pid_t, int, const struct sched_param *);
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int sched_getscheduler(pid_t);
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#endif
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int sched_yield(void);
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int sched_get_priority_max(int);
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int sched_get_priority_min(int);
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#if 0 /* not yet */
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struct timespec;
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int sched_rr_get_interval(pid_t, struct timespec *);
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#endif
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__END_DECLS
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#endif /* _SCHED_H_ */
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