posix/include/sched.h

   1 /* $Id: sched.h,v 1.4 2002/10/29 04:45:18 rex Exp $
   2  */
   3 /*
   4  * sched.h
   5  *
   6  * execution scheduling (REALTIME). Conforming to the Single UNIX(r)
   7  * Specification Version 2, System Interface & Headers Issue 5
   8  *
   9  * This file is part of the ReactOS Operating System.
  10  *
  11  * Contributors:
  12  *  Created by KJK::Hyperion <noog@libero.it>
  13  *
  14  *  THIS SOFTWARE IS NOT COPYRIGHTED
  15  *
  16  *  This source code is offered for use in the public domain. You may
  17  *  use, modify or distribute it freely.
  18  *
  19  *  This code is distributed in the hope that it will be useful but
  20  *  WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
  21  *  DISCLAMED. This includes but is not limited to warranties of
  22  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  23  *
  24  */
  25 #ifndef __SCHED_H_INCLUDED__
  26 #define __SCHED_H_INCLUDED__
  27
  28 /* INCLUDES */
  29 #include <time.h>
  30
  31 /* OBJECTS */
  32
  33 /* TYPES */
  34 struct sched_param
  35 {
  36  int sched_priority; /* process execution scheduling priority */
  37 };
  38
  39 /* CONSTANTS */
  40 /* First in-first out (FIFO) scheduling policy */
  41 #define SCHED_FIFO  (1)
  42 /* Round robin scheduling policy */
  43 #define SCHED_RR    (2)
  44 /* Another scheduling policy */
  45 #define SCHED_OTHER (3)
  46
  47 /* PROTOTYPES */
  48 int    sched_get_priority_max(int);
  49 int    sched_get_priority_min(int);
  50 int    sched_getparam(pid_t, struct sched_param *);
  51 int    sched_getscheduler(pid_t);
  52 int    sched_rr_get_interval(pid_t, struct timespec *);
  53 int    sched_setparam(pid_t, const struct sched_param *);
  54 int    sched_setscheduler(pid_t, int, const struct sched_param *);
  55 int    sched_yield(void);
  56
  57 /* MACROS */
  58
  59 #endif /* __SCHED_H_INCLUDED__ */
  60
  61 /* EOF */
  62