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, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  * Copyright 2015 Joyent, Inc.
  26  */
  27 
  28 /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T     */
  29 /*        All Rights Reserved   */
  30 
  31 
  32 #ifndef _SYS_RT_H
  33 #define _SYS_RT_H
  34 
  35 #include <sys/types.h>
  36 #include <sys/thread.h>
  37 
  38 #ifdef  __cplusplus
  39 extern "C" {
  40 #endif
  41 
  42 /*
  43  * Real-time dispatcher parameter table entry
  44  */
  45 typedef struct  rtdpent {
  46         pri_t   rt_globpri;     /* global (class independent) priority */
  47         int     rt_quantum;     /* default quantum associated with this level */
  48 } rtdpent_t;
  49 
  50 /*
  51  * Real-time class specific proc structure
  52  */
  53 typedef struct rtproc {
  54         int             rt_pquantum;    /* time quantum given to this proc */
  55         int             rt_timeleft;    /* time remaining in procs quantum */
  56         pri_t           rt_pri;         /* priority within rt class */
  57         ushort_t        rt_flags;       /* flags defined below */
  58         int             rt_tqsignal;    /* time quantum signal */
  59         kthread_id_t    rt_tp;          /* pointer to thread */
  60         struct rtproc   *rt_next;       /* link to next rtproc on list */
  61         struct rtproc   *rt_prev;       /* link to previous rtproc on list */
  62 } rtproc_t;
  63 
  64 
  65 /* Flags */
  66 #define RTBACKQ 0x0002          /* proc goes to back of disp q when preempted */
  67 
  68 
  69 #ifdef _KERNEL
  70 /*
  71  * Kernel version of real-time class specific parameter structure
  72  */
  73 typedef struct  rtkparms {
  74         pri_t   rt_pri;
  75         int     rt_tqntm;
  76         int     rt_tqsig;       /* real-time time quantum signal */
  77         uint_t  rt_cflags;      /* real-time control flags */
  78 } rtkparms_t;
  79 
  80 #define RTGPPRIO0       100     /* Global priority for RT priority 0 */
  81 
  82 /*
  83  * control flags (kparms->rt_cflags).
  84  */
  85 #define RT_DOPRI        0x01    /* change priority */
  86 #define RT_DOTQ         0x02    /* change RT time quantum */
  87 #define RT_DOSIG        0x04    /* change RT time quantum signal */
  88 
  89 #endif  /* _KERNEL */
  90 
  91 #ifdef  __cplusplus
  92 }
  93 #endif
  94 
  95 #endif  /* _SYS_RT_H */