1/*- 2 * Copyright (c) 1994, Henrik Vestergaard Draboel 3 * 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 Henrik Vestergaard Draboel. 16 * 4. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * $FreeBSD$ 32 */ 33 34#ifndef _SYS_RTPRIO_H_ 35#define _SYS_RTPRIO_H_ 36 37#include <sys/priority.h> 38 39/* 40 * Process realtime-priority specifications to rtprio. 41 */ 42 43/* priority types. Start at 1 to catch uninitialized fields. */ 44 45#define RTP_PRIO_REALTIME PRI_REALTIME /* real time process */ 46#define RTP_PRIO_NORMAL PRI_TIMESHARE /* time sharing process */ 47#define RTP_PRIO_IDLE PRI_IDLE /* idle process */ 48 49/* RTP_PRIO_FIFO is POSIX.1B SCHED_FIFO. 50 */ 51 52#define RTP_PRIO_FIFO_BIT PRI_FIFO_BIT 53#define RTP_PRIO_FIFO PRI_FIFO 54#define RTP_PRIO_BASE(P) PRI_BASE(P) 55#define RTP_PRIO_IS_REALTIME(P) PRI_IS_REALTIME(P) 56#define RTP_PRIO_NEED_RR(P) PRI_NEED_RR(P) 57 58/* priority range */ 59#define RTP_PRIO_MIN 0 /* Highest priority */ 60#define RTP_PRIO_MAX 31 /* Lowest priority */ 61 62/* 63 * rtprio() syscall functions 64 */ 65#define RTP_LOOKUP 0 66#define RTP_SET 1 67 68#ifndef LOCORE 69/* 70 * Scheduling class information. 71 */ 72struct rtprio { 73 u_short type; /* scheduling class */ 74 u_short prio; 75}; 76 77#ifdef _KERNEL 78struct thread; 79int rtp_to_pri(struct rtprio *, struct thread *); 80void pri_to_rtp(struct thread *, struct rtprio *); 81#endif 82#endif 83 84#ifndef _KERNEL 85#include <sys/cdefs.h> 86 87__BEGIN_DECLS 88int rtprio(int, pid_t, struct rtprio *); 89int rtprio_thread(int, lwpid_t, struct rtprio *); 90__END_DECLS 91#endif /* !_KERNEL */ 92#endif /* !_SYS_RTPRIO_H_ */ 93