NetBSD/include/sched.h

89 lines
3.1 KiB
C

/* $NetBSD: sched.h,v 1.8 2005/10/09 11:17:28 kleink Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Nathan J. Williams.
*
* 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 the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#ifndef _SCHED_H_
#define _SCHED_H_
#include <sys/cdefs.h>
#include <sys/featuretest.h>
#include <sys/sched.h>
/* Required by POSIX 1003.1, section 13.1, lines 12-13. */
#include <time.h>
/* Functions */
__BEGIN_DECLS
/*
* These are permitted to fail and return -1 and set errno = ENOSYS if
* _POSIX_PRIORITY_SCHEDULING is not defined.
*/
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_get_priority_max(int);
int sched_get_priority_min(int);
int sched_rr_get_interval(pid_t, struct timespec *);
/* Not optional in the presence of _POSIX_THREADS */
int sched_yield(void);
int __libc_thr_yield(void);
__END_DECLS
#ifndef __LIBPTHREAD_SOURCE__
#define sched_yield __libc_thr_yield
#endif /* __LIBPTHREAD_SOURCE__ */
#if defined(_NETBSD_SOURCE)
/*
* Stuff that for historical reasons is in <sched.h>, but not defined
* by any standard.
*/
__BEGIN_DECLS
pid_t clone(int (*)(void *), void *, int, void *);
pid_t __clone(int (*)(void *), void *, int, void *);
__END_DECLS
#endif /* _NETBSD_SOURCE */
#endif /* _SCHED_H_ */