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

     #ifndef _SCHED_H_
     #define _SCHED_H_
     
     /* sched.h: POSIX 1003.1b Process Scheduling header */
     
     /*-
      * Copyright (c) 1996, 1997
      *      HD Associates, Inc.  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 HD Associates, Inc
     *      and Jukka Antero Ukkonen.
     * 4. Neither the name of the author nor the names of any co-contributors
     *    may be used to endorse or promote products derived from this software
     *    without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY HD ASSOCIATES 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 HD ASSOCIATES 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: src/sys/posix4/sched.h,v 1.4 1999/12/29 04:55:02 peter Exp $
     * $DragonFly: src/sys/sys/sched.h,v 1.3 2003/08/27 06:30:04 rob Exp $
     */
    
    #include <sys/types.h>  /* For pid_t */
    
    #ifndef _KERNEL
    #include <time.h>               /* Per P1003.4 */
    #endif
    
    /* Scheduling policies
     */
    #define SCHED_FIFO  1
    #define SCHED_OTHER 2
    #define SCHED_RR    3
    
    struct sched_param
    {
            int sched_priority;
    };
    
    #ifndef _KERNEL
    #include <sys/cdefs.h>
    
    __BEGIN_DECLS
    int sched_setparam (pid_t, const struct sched_param *);
    int sched_getparam (pid_t, struct sched_param *);
    
    int sched_setscheduler (pid_t, int, const struct sched_param *);
    int sched_getscheduler (pid_t);
    
    int sched_yield (void);
    int sched_get_priority_max (int);
    int sched_get_priority_min (int);
    int sched_rr_get_interval (pid_t, struct timespec *);
    __END_DECLS
    
    #endif
    
    #endif /* _SCHED_H_ */

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