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236 lines
7.6 KiB
C
236 lines
7.6 KiB
C
/*
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* Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. The rights granted to you under the License
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* may not be used to create, or enable the creation or redistribution of,
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* unlawful or unlicensed copies of an Apple operating system, or to
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* circumvent, violate, or enable the circumvention or violation of, any
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* terms of an Apple operating system software license agreement.
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*
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* Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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*/
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/*
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* @OSF_COPYRIGHT@
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*/
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/*
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* Mach Operating System
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* Copyright (c) 1991,1990,1989,1988 Carnegie Mellon University
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* All Rights Reserved.
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*
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* Permission to use, copy, modify and distribute this software and its
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* documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
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* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie Mellon
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* the rights to redistribute these changes.
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*/
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/*
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*/
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#ifndef _MACH_POLICY_H_
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#define _MACH_POLICY_H_
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/*
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* mach/policy.h
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*
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* Definitions for scheduing policy.
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*/
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/*
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* All interfaces defined here are obsolete.
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*/
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#include <mach/boolean.h>
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#include <mach/message.h>
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#include <mach/vm_types.h>
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/*
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* Old scheduling control interface
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*/
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typedef int policy_t;
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typedef integer_t *policy_info_t;
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typedef integer_t *policy_base_t;
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typedef integer_t *policy_limit_t;
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/*
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* Policy definitions. Policies should be powers of 2,
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* but cannot be or'd together other than to test for a
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* policy 'class'.
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*/
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#define POLICY_NULL 0 /* none */
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#define POLICY_TIMESHARE 1 /* timesharing */
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#define POLICY_RR 2 /* fixed round robin */
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#define POLICY_FIFO 4 /* fixed fifo */
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#define __NEW_SCHEDULING_FRAMEWORK__
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/*
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* Check if policy is of 'class' fixed-priority.
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*/
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#define POLICYCLASS_FIXEDPRI (POLICY_RR | POLICY_FIFO)
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/*
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* Check if policy is valid.
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*/
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#define invalid_policy(policy) \
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((policy) != POLICY_TIMESHARE && \
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(policy) != POLICY_RR && \
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(policy) != POLICY_FIFO)
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/*
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* Types for TIMESHARE policy
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*/
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struct policy_timeshare_base {
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integer_t base_priority;
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};
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struct policy_timeshare_limit {
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integer_t max_priority;
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};
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struct policy_timeshare_info {
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integer_t max_priority;
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integer_t base_priority;
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integer_t cur_priority;
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boolean_t depressed;
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integer_t depress_priority;
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};
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typedef struct policy_timeshare_base *policy_timeshare_base_t;
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typedef struct policy_timeshare_limit *policy_timeshare_limit_t;
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typedef struct policy_timeshare_info *policy_timeshare_info_t;
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typedef struct policy_timeshare_base policy_timeshare_base_data_t;
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typedef struct policy_timeshare_limit policy_timeshare_limit_data_t;
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typedef struct policy_timeshare_info policy_timeshare_info_data_t;
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#define POLICY_TIMESHARE_BASE_COUNT ((mach_msg_type_number_t) \
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(sizeof(struct policy_timeshare_base)/sizeof(integer_t)))
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#define POLICY_TIMESHARE_LIMIT_COUNT ((mach_msg_type_number_t) \
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(sizeof(struct policy_timeshare_limit)/sizeof(integer_t)))
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#define POLICY_TIMESHARE_INFO_COUNT ((mach_msg_type_number_t) \
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(sizeof(struct policy_timeshare_info)/sizeof(integer_t)))
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/*
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* Types for the ROUND ROBIN (RR) policy
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*/
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struct policy_rr_base {
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integer_t base_priority;
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integer_t quantum;
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};
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struct policy_rr_limit {
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integer_t max_priority;
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};
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struct policy_rr_info {
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integer_t max_priority;
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integer_t base_priority;
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integer_t quantum;
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boolean_t depressed;
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integer_t depress_priority;
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};
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typedef struct policy_rr_base *policy_rr_base_t;
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typedef struct policy_rr_limit *policy_rr_limit_t;
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typedef struct policy_rr_info *policy_rr_info_t;
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typedef struct policy_rr_base policy_rr_base_data_t;
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typedef struct policy_rr_limit policy_rr_limit_data_t;
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typedef struct policy_rr_info policy_rr_info_data_t;
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#define POLICY_RR_BASE_COUNT ((mach_msg_type_number_t) \
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(sizeof(struct policy_rr_base)/sizeof(integer_t)))
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#define POLICY_RR_LIMIT_COUNT ((mach_msg_type_number_t) \
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(sizeof(struct policy_rr_limit)/sizeof(integer_t)))
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#define POLICY_RR_INFO_COUNT ((mach_msg_type_number_t) \
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(sizeof(struct policy_rr_info)/sizeof(integer_t)))
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/*
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* Types for the FIRST-IN-FIRST-OUT (FIFO) policy
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*/
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struct policy_fifo_base {
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integer_t base_priority;
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};
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struct policy_fifo_limit {
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integer_t max_priority;
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};
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struct policy_fifo_info {
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integer_t max_priority;
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integer_t base_priority;
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boolean_t depressed;
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integer_t depress_priority;
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};
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typedef struct policy_fifo_base *policy_fifo_base_t;
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typedef struct policy_fifo_limit *policy_fifo_limit_t;
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typedef struct policy_fifo_info *policy_fifo_info_t;
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typedef struct policy_fifo_base policy_fifo_base_data_t;
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typedef struct policy_fifo_limit policy_fifo_limit_data_t;
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typedef struct policy_fifo_info policy_fifo_info_data_t;
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#define POLICY_FIFO_BASE_COUNT ((mach_msg_type_number_t) \
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(sizeof(struct policy_fifo_base)/sizeof(integer_t)))
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#define POLICY_FIFO_LIMIT_COUNT ((mach_msg_type_number_t) \
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(sizeof(struct policy_fifo_limit)/sizeof(integer_t)))
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#define POLICY_FIFO_INFO_COUNT ((mach_msg_type_number_t) \
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(sizeof(struct policy_fifo_info)/sizeof(integer_t)))
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/*
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* Aggregate policy types
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*/
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struct policy_bases {
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policy_timeshare_base_data_t ts;
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policy_rr_base_data_t rr;
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policy_fifo_base_data_t fifo;
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};
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struct policy_limits {
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policy_timeshare_limit_data_t ts;
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policy_rr_limit_data_t rr;
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policy_fifo_limit_data_t fifo;
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};
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struct policy_infos {
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policy_timeshare_info_data_t ts;
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policy_rr_info_data_t rr;
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policy_fifo_info_data_t fifo;
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};
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typedef struct policy_bases policy_base_data_t;
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typedef struct policy_limits policy_limit_data_t;
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typedef struct policy_infos policy_info_data_t;
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#endif /* _MACH_POLICY_H_ */
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