include/sched.h

   1 /*      $NetBSD: sched.h,v 1.12 2009/01/11 03:04:12 christos Exp $      */
   2
   3 /*-
   4  * Copyright (c) 2001 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Nathan J. Williams.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 #ifndef _SCHED_H_
  33 #define _SCHED_H_
  34
  35 #include <sys/cdefs.h>
  36 #include <sys/featuretest.h>
  37 #include <sys/sched.h>
  38
  39 /* Required by POSIX 1003.1, section 13.1, lines 12-13. */
  40 #include <time.h>
  41
  42 __BEGIN_DECLS
  43 int     sched_setparam(pid_t, const struct sched_param *);
  44 int     sched_getparam(pid_t, struct sched_param *);
  45 int     sched_setscheduler(pid_t, int, const struct sched_param *);
  46 int     sched_getscheduler(pid_t);
  47 int     sched_get_priority_max(int);
  48 int     sched_get_priority_min(int);
  49 #ifndef __LIBC12_SOURCE__
  50 int     sched_rr_get_interval(pid_t, struct timespec *)
  51     __RENAME(__sched_rr_get_interval50);
  52 #endif
  53
  54 int     sched_yield(void);
  55 int     __libc_thr_yield(void);
  56 __END_DECLS
  57
  58 #ifndef __LIBPTHREAD_SOURCE__
  59 #define sched_yield             __libc_thr_yield
  60 #endif /* __LIBPTHREAD_SOURCE__ */
  61
  62 #if defined(_NETBSD_SOURCE)
  63
  64 __BEGIN_DECLS
  65
  66 /* Process affinity functions (not portable) */
  67 int     sched_getaffinity_np(pid_t, size_t, cpuset_t *);
  68 int     sched_setaffinity_np(pid_t, size_t, cpuset_t *);
  69
  70 /* Historical functions, not defined in standard */
  71 pid_t    clone(int (*)(void *), void *, int, void *);
  72 pid_t   __clone(int (*)(void *), void *, int, void *);
  73
  74 __END_DECLS
  75
  76 #endif /* _NETBSD_SOURCE */
  77
  78 #endif /* _SCHED_H_ */