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664a31e496
is an application space macro and the applications are supposed to be free to use it as they please (but cannot). This is consistant with the other BSD's who made this change quite some time ago. More commits to come.
80 lines
2.6 KiB
C
80 lines
2.6 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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/*
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* Process realtime-priority specifications to rtprio.
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*/
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/* priority types */
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#define RTP_PRIO_REALTIME 0
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#define RTP_PRIO_NORMAL 1
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#define RTP_PRIO_IDLE 2
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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 4
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#define RTP_PRIO_FIFO (RTP_PRIO_REALTIME | RTP_PRIO_FIFO_BIT)
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#define RTP_PRIO_BASE(P) ((P) & ~RTP_PRIO_FIFO_BIT)
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#define RTP_PRIO_IS_REALTIME(P) (RTP_PRIO_BASE(P) == RTP_PRIO_REALTIME)
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#define RTP_PRIO_NEED_RR(P) ((P) != RTP_PRIO_FIFO)
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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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struct rtprio {
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u_short type;
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u_short prio;
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};
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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 __P((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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