projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c79356b | 1 | /* |
| 91447636 | 2 | * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved. |
| 1c79356b | 3 | * |
| 2d21ac55 | 4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
| 0a7de745 | 5 | * |
| 2d21ac55 A |
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. | |
| 0a7de745 | 14 | * |
| 2d21ac55 A |
15 | * Please obtain a copy of the License at |
| 16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. | |
| 0a7de745 | 17 | * |
| 2d21ac55 A |
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 | |
| 8f6c56a5 A |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| 21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 2d21ac55 A |
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. | |
| 0a7de745 | 25 | * |
| 2d21ac55 | 26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
| 1c79356b A |
27 | */ |
| 28 | /* | |
| 29 | * @OSF_COPYRIGHT@ | |
| 30 | */ | |
| 0a7de745 | 31 | /* |
| 1c79356b A |
32 | * Mach Operating System |
| 33 | * Copyright (c) 1991,1990,1989 Carnegie Mellon University | |
| 34 | * All Rights Reserved. | |
| 0a7de745 | 35 | * |
| 1c79356b A |
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. | |
| 0a7de745 | 41 | * |
| 1c79356b A |
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. | |
| 0a7de745 | 45 | * |
| 1c79356b | 46 | * Carnegie Mellon requests users of this software to return to |
| 0a7de745 | 47 | * |
| 1c79356b A |
48 | * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU |
| 49 | * School of Computer Science | |
| 50 | * Carnegie Mellon University | |
| 51 | * Pittsburgh PA 15213-3890 | |
| 0a7de745 | 52 | * |
| 1c79356b A |
53 | * any improvements or extensions that they make and grant Carnegie Mellon |
| 54 | * the rights to redistribute these changes. | |
| 55 | */ | |
| 56 | /* | |
| 57 | */ | |
| 58 | ||
| 0a7de745 A |
59 | #ifndef _MACH_THREAD_SWITCH_H_ |
| 60 | #define _MACH_THREAD_SWITCH_H_ | |
| 1c79356b A |
61 | |
| 62 | #include <mach/mach_types.h> | |
| 63 | #include <mach/kern_return.h> | |
| 64 | #include <mach/message.h> | |
| 91447636 | 65 | #include <mach/mach_traps.h> |
| 1c79356b A |
66 | |
| 67 | /* | |
| 68 | * Constant definitions for thread_switch trap. | |
| 69 | */ | |
| 70 | ||
| 0a7de745 A |
71 | #define SWITCH_OPTION_NONE 0 |
| 72 | #define SWITCH_OPTION_DEPRESS 1 | |
| 73 | #define SWITCH_OPTION_WAIT 2 | |
| 39236c6e A |
74 | #ifdef PRIVATE |
| 75 | /* Workqueue should not consider thread blocked, and option_time is in us */ | |
| 0a7de745 | 76 | #define SWITCH_OPTION_DISPATCH_CONTENTION 3 |
| 39236c6e | 77 | /* Handoff to lock owner and temporarily grant matching IO throttling policy */ |
| 0a7de745 A |
78 | #define SWITCH_OPTION_OSLOCK_DEPRESS 4 |
| 79 | #define SWITCH_OPTION_OSLOCK_WAIT 5 | |
| 39236c6e | 80 | #endif /* PRIVATE */ |
| 1c79356b | 81 | |
| 0a7de745 | 82 | #define valid_switch_option(opt) (0 <= (opt) && (opt) <= 5) |
| 1c79356b | 83 | |
| 0a7de745 | 84 | #endif /* _MACH_THREAD_SWITCH_H_ */ |