1*d4514f0bSApple OSS Distributions /* 2*d4514f0bSApple OSS Distributions * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved. 3*d4514f0bSApple OSS Distributions * 4*d4514f0bSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5*d4514f0bSApple OSS Distributions * 6*d4514f0bSApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code 7*d4514f0bSApple OSS Distributions * as defined in and that are subject to the Apple Public Source License 8*d4514f0bSApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in 9*d4514f0bSApple OSS Distributions * compliance with the License. The rights granted to you under the License 10*d4514f0bSApple OSS Distributions * may not be used to create, or enable the creation or redistribution of, 11*d4514f0bSApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to 12*d4514f0bSApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any 13*d4514f0bSApple OSS Distributions * terms of an Apple operating system software license agreement. 14*d4514f0bSApple OSS Distributions * 15*d4514f0bSApple OSS Distributions * Please obtain a copy of the License at 16*d4514f0bSApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file. 17*d4514f0bSApple OSS Distributions * 18*d4514f0bSApple OSS Distributions * The Original Code and all software distributed under the License are 19*d4514f0bSApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20*d4514f0bSApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21*d4514f0bSApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22*d4514f0bSApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23*d4514f0bSApple OSS Distributions * Please see the License for the specific language governing rights and 24*d4514f0bSApple OSS Distributions * limitations under the License. 25*d4514f0bSApple OSS Distributions * 26*d4514f0bSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27*d4514f0bSApple OSS Distributions */ 28*d4514f0bSApple OSS Distributions /* 29*d4514f0bSApple OSS Distributions * @OSF_COPYRIGHT@ 30*d4514f0bSApple OSS Distributions */ 31*d4514f0bSApple OSS Distributions /* 32*d4514f0bSApple OSS Distributions * Mach Operating System 33*d4514f0bSApple OSS Distributions * Copyright (c) 1991,1990,1989 Carnegie Mellon University 34*d4514f0bSApple OSS Distributions * All Rights Reserved. 35*d4514f0bSApple OSS Distributions * 36*d4514f0bSApple OSS Distributions * Permission to use, copy, modify and distribute this software and its 37*d4514f0bSApple OSS Distributions * documentation is hereby granted, provided that both the copyright 38*d4514f0bSApple OSS Distributions * notice and this permission notice appear in all copies of the 39*d4514f0bSApple OSS Distributions * software, derivative works or modified versions, and any portions 40*d4514f0bSApple OSS Distributions * thereof, and that both notices appear in supporting documentation. 41*d4514f0bSApple OSS Distributions * 42*d4514f0bSApple OSS Distributions * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 43*d4514f0bSApple OSS Distributions * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR 44*d4514f0bSApple OSS Distributions * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 45*d4514f0bSApple OSS Distributions * 46*d4514f0bSApple OSS Distributions * Carnegie Mellon requests users of this software to return to 47*d4514f0bSApple OSS Distributions * 48*d4514f0bSApple OSS Distributions * Software Distribution Coordinator or [email protected] 49*d4514f0bSApple OSS Distributions * School of Computer Science 50*d4514f0bSApple OSS Distributions * Carnegie Mellon University 51*d4514f0bSApple OSS Distributions * Pittsburgh PA 15213-3890 52*d4514f0bSApple OSS Distributions * 53*d4514f0bSApple OSS Distributions * any improvements or extensions that they make and grant Carnegie Mellon 54*d4514f0bSApple OSS Distributions * the rights to redistribute these changes. 55*d4514f0bSApple OSS Distributions */ 56*d4514f0bSApple OSS Distributions /* 57*d4514f0bSApple OSS Distributions */ 58*d4514f0bSApple OSS Distributions 59*d4514f0bSApple OSS Distributions #ifndef _MACH_THREAD_SWITCH_H_ 60*d4514f0bSApple OSS Distributions #define _MACH_THREAD_SWITCH_H_ 61*d4514f0bSApple OSS Distributions 62*d4514f0bSApple OSS Distributions #include <mach/mach_types.h> 63*d4514f0bSApple OSS Distributions #include <mach/kern_return.h> 64*d4514f0bSApple OSS Distributions #include <mach/message.h> 65*d4514f0bSApple OSS Distributions #include <mach/mach_traps.h> 66*d4514f0bSApple OSS Distributions 67*d4514f0bSApple OSS Distributions /* 68*d4514f0bSApple OSS Distributions * Constant definitions for thread_switch trap. 69*d4514f0bSApple OSS Distributions */ 70*d4514f0bSApple OSS Distributions 71*d4514f0bSApple OSS Distributions #define SWITCH_OPTION_NONE 0 72*d4514f0bSApple OSS Distributions #define SWITCH_OPTION_DEPRESS 1 73*d4514f0bSApple OSS Distributions #define SWITCH_OPTION_WAIT 2 74*d4514f0bSApple OSS Distributions #ifdef PRIVATE 75*d4514f0bSApple OSS Distributions /* Workqueue should not consider thread blocked, and option_time is in us */ 76*d4514f0bSApple OSS Distributions #define SWITCH_OPTION_DISPATCH_CONTENTION 3 77*d4514f0bSApple OSS Distributions /* Handoff to lock owner and temporarily grant matching IO throttling policy */ 78*d4514f0bSApple OSS Distributions #define SWITCH_OPTION_OSLOCK_DEPRESS 4 79*d4514f0bSApple OSS Distributions #define SWITCH_OPTION_OSLOCK_WAIT 5 80*d4514f0bSApple OSS Distributions #endif /* PRIVATE */ 81*d4514f0bSApple OSS Distributions 82*d4514f0bSApple OSS Distributions #define valid_switch_option(opt) (0 <= (opt) && (opt) <= 5) 83*d4514f0bSApple OSS Distributions 84*d4514f0bSApple OSS Distributions #endif /* _MACH_THREAD_SWITCH_H_ */ 85