92 lines
2.9 KiB
C
92 lines
2.9 KiB
C
/*
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* Copyright (c) 1994, Henrik Vestergaard Draboel
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* 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 (name).
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 THE AUTHOR 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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* $FreeBSD$
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*/
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#ifndef _SYS_RTPRIO_H_
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#define _SYS_RTPRIO_H_
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#include <sys/priority.h>
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/*
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* Process realtime-priority specifications to rtprio.
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*/
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/* priority types. Start at 1 to catch uninitialized fields. */
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#define RTP_PRIO_REALTIME PRI_REALTIME /* real time process */
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#define RTP_PRIO_NORMAL PRI_TIMESHARE /* time sharing process */
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#define RTP_PRIO_IDLE PRI_IDLE /* idle process */
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/* RTP_PRIO_FIFO is POSIX.1B SCHED_FIFO.
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*/
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#define RTP_PRIO_FIFO_BIT PRI_FIFO_BIT
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#define RTP_PRIO_FIFO PRI_FIFO
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#define RTP_PRIO_BASE(P) PRI_BASE(P)
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#define RTP_PRIO_IS_REALTIME(P) PRI_IS_REALTIME(P)
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#define RTP_PRIO_NEED_RR(P) PRI_NEED_RR(P)
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/* priority range */
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#define RTP_PRIO_MIN 0 /* Highest priority */
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#define RTP_PRIO_MAX 31 /* Lowest priority */
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/*
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* rtprio() syscall functions
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*/
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#define RTP_LOOKUP 0
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#define RTP_SET 1
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#ifndef LOCORE
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/*
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* Scheduling class information.
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*/
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struct rtprio {
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u_short type; /* scheduling class */
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u_short prio;
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};
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#ifdef _KERNEL
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struct ksegrp;
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int rtp_to_pri(struct rtprio *, struct ksegrp *);
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void pri_to_rtp(struct ksegrp *, struct rtprio *);
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#endif
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#endif
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#ifndef _KERNEL
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#include <sys/cdefs.h>
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__BEGIN_DECLS
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int rtprio(int, pid_t, struct rtprio *);
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__END_DECLS
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#endif /* !_KERNEL */
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#endif /* !_SYS_RTPRIO_H_ */
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