ia.h revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1997-1998 by Sun Microsystems, Inc.
* All rights reserved.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
#ifndef _SYS_IA_H
#define _SYS_IA_H
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/types.h>
#include <sys/thread.h>
#ifdef __cplusplus
extern "C" {
#endif
#define dcmn_err if (ia_debug) cmn_err
#define IA_OFF_QUANTUM 1
#define IA_OFF_PRIORITY 20
#define iaumdpri (iapp->ia_umdpri)
#define iamedumdpri (ia_maxumdpri >> 1)
/*
* interactive dispatcher parameter table entry
*/
typedef struct iadpent {
pri_t ia_globpri; /* global (class independent) priority */
long ia_quantum; /* time quantum given to procs at this level */
pri_t ia_tqexp; /* ia_umdpri assigned when proc at this level */
/* exceeds its time quantum */
pri_t ia_slpret; /* ia_umdpri assigned when proc at this level */
/* returns to user mode after sleeping */
short ia_maxwait; /* bumped to ia_lwait if more than ia_maxwait */
/* secs elapse before receiving full quantum */
short ia_lwait; /* ia_umdpri assigned if ia_dispwait exceeds */
/* ia_maxwait */
} iadpent_t;
/*
* time-sharing class specific thread structure
*/
typedef struct iaproc {
long ia_timeleft; /* time remaining in procs quantum */
pri_t ia_cpupri; /* system controlled component of ia_umdpri */
pri_t ia_uprilim; /* user priority limit */
pri_t ia_upri; /* user priority */
pri_t ia_umdpri; /* user mode priority within ia class */
char ia_nice; /* nice value for compatibility */
unsigned char ia_flags; /* flags defined below */
short ia_dispwait; /* number of wall clock seconds since start */
/* of quantum (not reset upon preemption */
kthread_t *ia_tp; /* pointer to thread */
int *ia_pstatp; /* pointer to p_stat */
pri_t *ia_pprip; /* pointer to t_pri */
uint_t *ia_pflagp; /* pointer to p_flag */
struct iaproc *ia_next; /* link to next iaproc on list */
struct iaproc *ia_prev; /* link to previous iaproc on list */
int ia_mode; /* interactive on/off */
} iaproc_t;
/* flags */
#define IAKPRI 0x01 /* thread at kernel mode priority */
#define IABACKQ 0x02 /* thread goes to back of disp q when preempted */
#define IASLEPT 0x04 /* thread had long-term suspend - give new slice */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_IA_H */