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1/*
2 * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28/*
29 * @OSF_COPYRIGHT@
30 */
31/*
32 * Mach Operating System
33 * Copyright (c) 1991,1990,1989,1988 Carnegie Mellon University
34 * All Rights Reserved.
35 *
36 * Permission to use, copy, modify and distribute this software and its
37 * documentation is hereby granted, provided that both the copyright
38 * notice and this permission notice appear in all copies of the
39 * software, derivative works or modified versions, and any portions
40 * thereof, and that both notices appear in supporting documentation.
41 *
42 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
43 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
44 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
45 *
46 * Carnegie Mellon requests users of this software to return to
47 *
48 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
49 * School of Computer Science
50 * Carnegie Mellon University
51 * Pittsburgh PA 15213-3890
52 *
53 * any improvements or extensions that they make and grant Carnegie Mellon
54 * the rights to redistribute these changes.
55 */
56/*
57 */
58
59#ifndef_MACH_POLICY_H_
60#define _MACH_POLICY_H_
61
62/*
63 *mach/policy.h
64 *
65 *Definitions for scheduing policy.
66 */
67
68/*
69 * All interfaces defined here are obsolete.
70 */
71
72#include <mach/boolean.h>
73#include <mach/message.h>
74#include <mach/vm_types.h>
75
76/*
77 *Old scheduling control interface
78 */
79typedef int policy_t;
80typedef integer_t*policy_info_t;
81typedef integer_t*policy_base_t;
82typedef integer_t*policy_limit_t;
83
84/*
85 *Policy definitions. Policies should be powers of 2,
86 *but cannot be or'd together other than to test for a
87 *policy 'class'.
88 */
89#definePOLICY_NULL0/* none*/
90#definePOLICY_TIMESHARE1/* timesharing*/
91#definePOLICY_RR2/* fixed round robin*/
92#define POLICY_FIFO4/* fixed fifo*/
93
94#define __NEW_SCHEDULING_FRAMEWORK__
95
96/*
97 *Check if policy is of 'class' fixed-priority.
98 */
99#definePOLICYCLASS_FIXEDPRI(POLICY_RR | POLICY_FIFO)
100
101/*
102 *Check if policy is valid.
103 */
104#define invalid_policy(policy)\
105((policy) != POLICY_TIMESHARE &&\
106 (policy) != POLICY_RR &&\
107 (policy) != POLICY_FIFO)
108
109
110/*
111 * Types for TIMESHARE policy
112 */
113struct policy_timeshare_base {
114integer_tbase_priority;
115};
116struct policy_timeshare_limit {
117integer_tmax_priority;
118};
119struct policy_timeshare_info {
120integer_tmax_priority;
121integer_tbase_priority;
122integer_tcur_priority;
123boolean_tdepressed;
124integer_tdepress_priority;
125};
126
127typedef struct policy_timeshare_base*policy_timeshare_base_t;
128typedef struct policy_timeshare_limit*policy_timeshare_limit_t;
129typedef struct policy_timeshare_info*policy_timeshare_info_t;
130
131typedef struct policy_timeshare_basepolicy_timeshare_base_data_t;
132typedef struct policy_timeshare_limitpolicy_timeshare_limit_data_t;
133typedef struct policy_timeshare_infopolicy_timeshare_info_data_t;
134
135
136#define POLICY_TIMESHARE_BASE_COUNT((mach_msg_type_number_t) \
137(sizeof(struct policy_timeshare_base)/sizeof(integer_t)))
138#define POLICY_TIMESHARE_LIMIT_COUNT((mach_msg_type_number_t) \
139(sizeof(struct policy_timeshare_limit)/sizeof(integer_t)))
140#define POLICY_TIMESHARE_INFO_COUNT((mach_msg_type_number_t) \
141(sizeof(struct policy_timeshare_info)/sizeof(integer_t)))
142
143
144/*
145 *Types for the ROUND ROBIN (RR) policy
146 */
147struct policy_rr_base {
148integer_tbase_priority;
149integer_tquantum;
150};
151struct policy_rr_limit {
152integer_tmax_priority;
153};
154struct policy_rr_info {
155integer_tmax_priority;
156integer_tbase_priority;
157integer_tquantum;
158boolean_tdepressed;
159integer_tdepress_priority;
160};
161
162typedef struct policy_rr_base*policy_rr_base_t;
163typedef struct policy_rr_limit*policy_rr_limit_t;
164typedef struct policy_rr_info*policy_rr_info_t;
165
166typedef struct policy_rr_basepolicy_rr_base_data_t;
167typedef struct policy_rr_limitpolicy_rr_limit_data_t;
168typedef struct policy_rr_infopolicy_rr_info_data_t;
169
170#define POLICY_RR_BASE_COUNT((mach_msg_type_number_t)\
171(sizeof(struct policy_rr_base)/sizeof(integer_t)))
172#define POLICY_RR_LIMIT_COUNT((mach_msg_type_number_t)\
173(sizeof(struct policy_rr_limit)/sizeof(integer_t)))
174#define POLICY_RR_INFO_COUNT((mach_msg_type_number_t)\
175(sizeof(struct policy_rr_info)/sizeof(integer_t)))
176
177
178/*
179 * Types for the FIRST-IN-FIRST-OUT (FIFO) policy
180 */
181struct policy_fifo_base {
182integer_tbase_priority;
183};
184struct policy_fifo_limit {
185integer_tmax_priority;
186};
187struct policy_fifo_info {
188integer_tmax_priority;
189integer_tbase_priority;
190boolean_tdepressed;
191integer_tdepress_priority;
192};
193
194typedef struct policy_fifo_base*policy_fifo_base_t;
195typedef struct policy_fifo_limit*policy_fifo_limit_t;
196typedef struct policy_fifo_info*policy_fifo_info_t;
197
198typedef struct policy_fifo_basepolicy_fifo_base_data_t;
199typedef struct policy_fifo_limitpolicy_fifo_limit_data_t;
200typedef struct policy_fifo_infopolicy_fifo_info_data_t;
201
202#define POLICY_FIFO_BASE_COUNT((mach_msg_type_number_t)\
203(sizeof(struct policy_fifo_base)/sizeof(integer_t)))
204#define POLICY_FIFO_LIMIT_COUNT((mach_msg_type_number_t)\
205(sizeof(struct policy_fifo_limit)/sizeof(integer_t)))
206#define POLICY_FIFO_INFO_COUNT((mach_msg_type_number_t)\
207(sizeof(struct policy_fifo_info)/sizeof(integer_t)))
208
209/*
210 * Aggregate policy types
211 */
212
213struct policy_bases {
214policy_timeshare_base_data_tts;
215policy_rr_base_data_trr;
216policy_fifo_base_data_tfifo;
217};
218
219struct policy_limits {
220policy_timeshare_limit_data_tts;
221policy_rr_limit_data_trr;
222policy_fifo_limit_data_tfifo;
223};
224
225struct policy_infos {
226policy_timeshare_info_data_tts;
227policy_rr_info_data_trr;
228policy_fifo_info_data_tfifo;
229};
230
231typedef struct policy_basespolicy_base_data_t;
232typedef struct policy_limitspolicy_limit_data_t;
233typedef struct policy_infospolicy_info_data_t;
234
235#endif/* _MACH_POLICY_H_ */
236

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