usr/src/uts/common/sys/rt.h

   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  */
  26
  27 /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  28 /*        All Rights Reserved   */
  29
  30
  31 #ifndef _SYS_RT_H
  32 #define _SYS_RT_H
  33
  34 #include <sys/types.h>
  35 #include <sys/thread.h>
  36
  37 #ifdef  __cplusplus
  38 extern "C" {
  39 #endif
  40
  41 /*
  42  * Real-time dispatcher parameter table entry
  43  */
  44 typedef struct  rtdpent {
  45         pri_t   rt_globpri;     /* global (class independent) priority */
  46         int     rt_quantum;     /* default quantum associated with this level */
  47 } rtdpent_t;
  48
  49 /*
  50  * Real-time class specific proc structure
  51  */
  52 typedef struct rtproc {
  53         int             rt_pquantum;    /* time quantum given to this proc */
  54         int             rt_timeleft;    /* time remaining in procs quantum */
  55         pri_t           rt_pri;         /* priority within rt class */
  56         ushort_t        rt_flags;       /* flags defined below */
  57         int             rt_tqsignal;    /* time quantum signal */
  58         kthread_id_t    rt_tp;          /* pointer to thread */
  59         struct rtproc   *rt_next;       /* link to next rtproc on list */
  60         struct rtproc   *rt_prev;       /* link to previous rtproc on list */
  61 } rtproc_t;
  62
  63
  64 /* Flags */
  65 #define RTBACKQ 0x0002          /* proc goes to back of disp q when preempted */
  66
  67
  68 #ifdef _KERNEL
  69 /*
  70  * Kernel version of real-time class specific parameter structure
  71  */
  72 typedef struct  rtkparms {
  73         pri_t   rt_pri;
  74         int     rt_tqntm;
  75         int     rt_tqsig;       /* real-time time quantum signal */
  76         uint_t  rt_cflags;      /* real-time control flags */
  77 } rtkparms_t;
  78 #endif  /* _KERNEL */
  79
  80 #ifdef  __cplusplus
  81 }
  82 #endif
  83
  84 #endif  /* _SYS_RT_H */