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
35typedef 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