FreeBSD/Linux Kernel Cross Reference
sys/sys/rtprio.h

     /*-
      * SPDX-License-Identifier: BSD-4-Clause
      *
      * Copyright (c) 1994, Henrik Vestergaard Draboel
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by Henrik Vestergaard Draboel.
     * 4. The name of the author may not be used to endorse or promote products
     *    derived from this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     *
     * $FreeBSD$
     */
    
    #ifndef _SYS_RTPRIO_H_
    #define _SYS_RTPRIO_H_
    
    #include <sys/priority.h>
    
    /*
     * Process realtime-priority specifications to rtprio.
     */
    
    /* priority types.  Start at 1 to catch uninitialized fields. */
    
    #define RTP_PRIO_ITHD           PRI_ITHD        /* Interrupt thread. */
    #define RTP_PRIO_REALTIME       PRI_REALTIME    /* real time process */
    #define RTP_PRIO_NORMAL         PRI_TIMESHARE   /* time sharing process */
    #define RTP_PRIO_IDLE           PRI_IDLE        /* idle process */
    
    /* RTP_PRIO_FIFO is POSIX.1B SCHED_FIFO.
     */
    
    #define RTP_PRIO_FIFO_BIT       PRI_FIFO_BIT
    #define RTP_PRIO_FIFO           PRI_FIFO
    #define RTP_PRIO_BASE(P)        PRI_BASE(P)
    #define RTP_PRIO_IS_REALTIME(P) PRI_IS_REALTIME(P)
    #define RTP_PRIO_NEED_RR(P)     PRI_NEED_RR(P)
    
    /* priority range */
    #define RTP_PRIO_MIN            0       /* Highest priority */
    #define RTP_PRIO_MAX            31      /* Lowest priority */
    
    /*
     * rtprio() syscall functions
     */
    #define RTP_LOOKUP              0
    #define RTP_SET                 1
    
    #ifndef LOCORE
    /*
     * Scheduling class information.
     */
    struct rtprio {
            u_short type;                   /* scheduling class */
            u_short prio;
    };
    
    #ifdef _KERNEL
    struct thread;
    int     rtp_to_pri(struct rtprio *, struct thread *);
    void    pri_to_rtp(struct thread *, struct rtprio *);
    #endif
    #endif
    
    #ifndef _KERNEL
    #include <sys/cdefs.h>
    
    __BEGIN_DECLS
    int     rtprio(int, pid_t, struct rtprio *);
    int     rtprio_thread(int, lwpid_t, struct rtprio *);
    __END_DECLS
    #endif  /* !_KERNEL */
    #endif  /* !_SYS_RTPRIO_H_ */

Cache object: f81514d63dc63ceb846fcbb1fca8eaca