/*-
* Copyright (c) 2002, Jeffrey Roberson <jeff@freebsd.org>
* 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 unmodified, 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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_SCHED_H_
#define _SYS_SCHED_H_
/*
* General scheduling info.
*/
int sched_rr_interval(void);
int sched_runnable(void);
/*
* KSE Groups contain scheduling priority information. They record the
* behavior of groups of KSEs and threads.
*/
void sched_exit(struct ksegrp *kg, struct ksegrp *child);
void sched_fork(struct ksegrp *kg, struct ksegrp *child);
void sched_nice(struct ksegrp *kg, int nice);
void sched_prio(struct thread *td, u_char prio);
void sched_userret(struct thread *td);
/*
* Threads are switched in and out, block on resources, and have temporary
* priorities inherited from their ksegs.
*/
void sched_clock(struct thread *td);
void sched_sleep(struct thread *td, u_char prio);
void sched_switchin(struct thread *td);
void sched_switchout(struct thread *td);
void sched_wakeup(struct thread *td);
/*
* KSEs are moved on and off of run queues.
*/
void sched_add(struct kse *ke);
void sched_rem(struct kse *ke);
struct kse *sched_choose(void);
#endif /* !_SYS_SCHED_H_ */
