1 /* 2 * Copyright (c) 2000-2002 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 #ifndef _MACH_SYNC_POLICY_H_ 33 #define _MACH_SYNC_POLICY_H_ 34 35 typedef int sync_policy_t; 36 37 /* 38 * These options define the wait ordering of the synchronizers 39 */ 40 #define SYNC_POLICY_FIFO 0x0 41 #define SYNC_POLICY_FIXED_PRIORITY 0x1 42 #define SYNC_POLICY_REVERSED 0x2 43 #define SYNC_POLICY_ORDER_MASK 0x3 44 #define SYNC_POLICY_LIFO (SYNC_POLICY_FIFO|SYNC_POLICY_REVERSED) 45 46 #if KERNEL_PRIVATE 47 48 #define SYNC_POLICY_PREPOST 0x4 /* obsolete but kexts use it */ 49 50 #endif /* KERNEL_PRIVATE */ 51 #ifdef XNU_KERNEL_PRIVATE 52 53 /* SYNC_POLICY_FIXED_PRIORITY is no longer supported */ 54 #define SYNC_POLICY_USER_MASK \ 55 (SYNC_POLICY_FIFO | SYNC_POLICY_LIFO | SYNC_POLICY_PREPOST) 56 57 #define SYNC_POLICY_INIT_LOCKED 0x08 58 59 #endif /* XNU_KERNEL_PRIVATE */ 60 61 #endif /* _MACH_SYNC_POLICY_H_ */ 62