1/*- 2 * SPDX-License-Identifier: BSD-4-Clause 3 * 4 * Copyright (c) 1994, Henrik Vestergaard Draboel 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Henrik Vestergaard Draboel. 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 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_ITHD PRI_ITHD /* Interrupt thread. */ 46#define RTP_PRIO_REALTIME PRI_REALTIME /* real time process */ 47#define RTP_PRIO_NORMAL PRI_TIMESHARE /* time sharing process */ 48#define RTP_PRIO_IDLE PRI_IDLE /* idle process */ 49 50/* RTP_PRIO_FIFO is POSIX.1B SCHED_FIFO. 51 */ 52 53#define RTP_PRIO_FIFO_BIT PRI_FIFO_BIT 54#define RTP_PRIO_FIFO PRI_FIFO 55#define RTP_PRIO_BASE(P) PRI_BASE(P) 56#define RTP_PRIO_IS_REALTIME(P) PRI_IS_REALTIME(P) 57#define RTP_PRIO_NEED_RR(P) PRI_NEED_RR(P) 58 59/* priority range */ 60#define RTP_PRIO_MIN 0 /* Highest priority */ 61#define RTP_PRIO_MAX 31 /* Lowest priority */ 62 63/* 64 * rtprio() syscall functions 65 */ 66#define RTP_LOOKUP 0 67#define RTP_SET 1 68 69#ifndef LOCORE 70/* 71 * Scheduling class information. 72 */ 73struct rtprio { 74 u_short type; /* scheduling class */ 75 u_short prio; 76}; 77 78#ifdef _KERNEL 79struct thread; 80int rtp_to_pri(struct rtprio *, struct thread *); 81void pri_to_rtp(struct thread *, struct rtprio *); 82#endif 83#endif 84 85#ifndef _KERNEL 86#include <sys/cdefs.h> 87 88__BEGIN_DECLS 89int rtprio(int, pid_t, struct rtprio *); 90int rtprio_thread(int, lwpid_t, struct rtprio *); 91__END_DECLS 92#endif /* !_KERNEL */ 93#endif /* !_SYS_RTPRIO_H_ */ 94