xref: /xnu-8020.140.41/osfmk/mach/sync_policy.h (revision 27b03b360a988dfd3dfdf34262bb0042026747cc)
1*27b03b36SApple OSS Distributions /*
2*27b03b36SApple OSS Distributions  * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
3*27b03b36SApple OSS Distributions  *
4*27b03b36SApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*27b03b36SApple OSS Distributions  *
6*27b03b36SApple OSS Distributions  * This file contains Original Code and/or Modifications of Original Code
7*27b03b36SApple OSS Distributions  * as defined in and that are subject to the Apple Public Source License
8*27b03b36SApple OSS Distributions  * Version 2.0 (the 'License'). You may not use this file except in
9*27b03b36SApple OSS Distributions  * compliance with the License. The rights granted to you under the License
10*27b03b36SApple OSS Distributions  * may not be used to create, or enable the creation or redistribution of,
11*27b03b36SApple OSS Distributions  * unlawful or unlicensed copies of an Apple operating system, or to
12*27b03b36SApple OSS Distributions  * circumvent, violate, or enable the circumvention or violation of, any
13*27b03b36SApple OSS Distributions  * terms of an Apple operating system software license agreement.
14*27b03b36SApple OSS Distributions  *
15*27b03b36SApple OSS Distributions  * Please obtain a copy of the License at
16*27b03b36SApple OSS Distributions  * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*27b03b36SApple OSS Distributions  *
18*27b03b36SApple OSS Distributions  * The Original Code and all software distributed under the License are
19*27b03b36SApple OSS Distributions  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*27b03b36SApple OSS Distributions  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*27b03b36SApple OSS Distributions  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*27b03b36SApple OSS Distributions  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*27b03b36SApple OSS Distributions  * Please see the License for the specific language governing rights and
24*27b03b36SApple OSS Distributions  * limitations under the License.
25*27b03b36SApple OSS Distributions  *
26*27b03b36SApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*27b03b36SApple OSS Distributions  */
28*27b03b36SApple OSS Distributions /*
29*27b03b36SApple OSS Distributions  * @OSF_COPYRIGHT@
30*27b03b36SApple OSS Distributions  */
31*27b03b36SApple OSS Distributions 
32*27b03b36SApple OSS Distributions #ifndef _MACH_SYNC_POLICY_H_
33*27b03b36SApple OSS Distributions #define _MACH_SYNC_POLICY_H_
34*27b03b36SApple OSS Distributions 
35*27b03b36SApple OSS Distributions typedef int sync_policy_t;
36*27b03b36SApple OSS Distributions 
37*27b03b36SApple OSS Distributions /*
38*27b03b36SApple OSS Distributions  *	These options define the wait ordering of the synchronizers
39*27b03b36SApple OSS Distributions  */
40*27b03b36SApple OSS Distributions #define SYNC_POLICY_FIFO                0x0
41*27b03b36SApple OSS Distributions #define SYNC_POLICY_FIXED_PRIORITY      0x1
42*27b03b36SApple OSS Distributions #define SYNC_POLICY_REVERSED            0x2
43*27b03b36SApple OSS Distributions #define SYNC_POLICY_ORDER_MASK          0x3
44*27b03b36SApple OSS Distributions #define SYNC_POLICY_LIFO                (SYNC_POLICY_FIFO|SYNC_POLICY_REVERSED)
45*27b03b36SApple OSS Distributions 
46*27b03b36SApple OSS Distributions #if KERNEL_PRIVATE
47*27b03b36SApple OSS Distributions 
48*27b03b36SApple OSS Distributions #define SYNC_POLICY_PREPOST             0x4 /* obsolete but kexts use it */
49*27b03b36SApple OSS Distributions 
50*27b03b36SApple OSS Distributions #endif /* KERNEL_PRIVATE */
51*27b03b36SApple OSS Distributions #ifdef XNU_KERNEL_PRIVATE
52*27b03b36SApple OSS Distributions 
53*27b03b36SApple OSS Distributions /* SYNC_POLICY_FIXED_PRIORITY is no longer supported */
54*27b03b36SApple OSS Distributions #define SYNC_POLICY_USER_MASK \
55*27b03b36SApple OSS Distributions 	(SYNC_POLICY_FIFO | SYNC_POLICY_LIFO | SYNC_POLICY_PREPOST)
56*27b03b36SApple OSS Distributions 
57*27b03b36SApple OSS Distributions #define SYNC_POLICY_INIT_LOCKED         0x08
58*27b03b36SApple OSS Distributions 
59*27b03b36SApple OSS Distributions #endif  /* XNU_KERNEL_PRIVATE */
60*27b03b36SApple OSS Distributions 
61*27b03b36SApple OSS Distributions #endif  /* _MACH_SYNC_POLICY_H_ */
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