1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 
  22 /*
  23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26 
  27 #ifndef _SCHED_H
  28 #define _SCHED_H
  29 
  30 #pragma ident   "%Z%%M% %I%     %E% SMI"
  31 
  32 #include <sys/types.h>
  33 #include <time.h>
  34 
  35 #ifdef  __cplusplus
  36 extern "C" {
  37 #endif
  38 
  39 struct sched_param {
  40         int     sched_priority; /* scheduling priority */
  41         int     sched_pad[8];
  42 };
  43 
  44 /*
  45  * POSIX scheduling policies
  46  */
  47 #define SCHED_OTHER     0       /* traditional time-sharing scheduling class */
  48 #define SCHED_FIFO      1       /* real-time class: run to completion */
  49 #define SCHED_RR        2       /* real-time class: round-robin */
  50 #define SCHED_SYS       3       /* system scheduling class */
  51 #define SCHED_IA        4       /* interactive time-sharing class */
  52 #define SCHED_FSS       5       /* fair-share scheduling class */
  53 #define SCHED_FX        6       /* fixed-priority scheduling class */
  54 #define _SCHED_NEXT     7       /* first unassigned policy number */
  55 
  56 /*
  57  * function prototypes
  58  */
  59 #if     defined(__STDC__)
  60 int     sched_getparam(pid_t, struct sched_param *);
  61 int     sched_setparam(pid_t, const struct sched_param *);
  62 int     sched_getscheduler(pid_t);
  63 int     sched_setscheduler(pid_t, int, const struct sched_param *);
  64 int     sched_yield(void);
  65 int     sched_get_priority_max(int);
  66 int     sched_get_priority_min(int);
  67 int     sched_rr_get_interval(pid_t, struct timespec *);
  68 #else
  69 int     sched_getparam();
  70 int     sched_setparam();
  71 int     sched_getscheduler();
  72 int     sched_setscheduler();
  73 int     sched_yield();
  74 int     sched_get_priority_max();
  75 int     sched_get_priority_min();
  76 int     sched_rr_get_interval();
  77 #endif  /* __STDC__ */
  78 
  79 #ifdef  __cplusplus
  80 }
  81 #endif
  82 
  83 #endif  /* _SCHED_H */