xref: /xnu-8796.101.5/iokit/IOKit/IOSharedLock.h (revision aca3beaa3dfbd42498b42c5e5ce20a938e6554e5)
1*aca3beaaSApple OSS Distributions /*
2*aca3beaaSApple OSS Distributions  * Copyright (c) 1998-2010 Apple Computer, Inc. All rights reserved.
3*aca3beaaSApple OSS Distributions  *
4*aca3beaaSApple OSS Distributions  * @APPLE_LICENSE_HEADER_START@
5*aca3beaaSApple OSS Distributions  *
6*aca3beaaSApple OSS Distributions  * This file contains Original Code and/or Modifications of Original Code
7*aca3beaaSApple OSS Distributions  * as defined in and that are subject to the Apple Public Source License
8*aca3beaaSApple OSS Distributions  * Version 2.0 (the 'License'). You may not use this file except in
9*aca3beaaSApple OSS Distributions  * compliance with the License. Please obtain a copy of the License at
10*aca3beaaSApple OSS Distributions  * http://www.opensource.apple.com/apsl/ and read it before using this
11*aca3beaaSApple OSS Distributions  * file.
12*aca3beaaSApple OSS Distributions  *
13*aca3beaaSApple OSS Distributions  * The Original Code and all software distributed under the License are
14*aca3beaaSApple OSS Distributions  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15*aca3beaaSApple OSS Distributions  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16*aca3beaaSApple OSS Distributions  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17*aca3beaaSApple OSS Distributions  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18*aca3beaaSApple OSS Distributions  * Please see the License for the specific language governing rights and
19*aca3beaaSApple OSS Distributions  * limitations under the License.
20*aca3beaaSApple OSS Distributions  *
21*aca3beaaSApple OSS Distributions  * @APPLE_LICENSE_HEADER_END@
22*aca3beaaSApple OSS Distributions  */
23*aca3beaaSApple OSS Distributions 
24*aca3beaaSApple OSS Distributions #ifndef _IOKIT_IOSHAREDLOCK_H
25*aca3beaaSApple OSS Distributions #define _IOKIT_IOSHAREDLOCK_H
26*aca3beaaSApple OSS Distributions 
27*aca3beaaSApple OSS Distributions #include <libkern/OSAtomic.h>
28*aca3beaaSApple OSS Distributions 
29*aca3beaaSApple OSS Distributions #define IOSharedLockData OSSpinLock
30*aca3beaaSApple OSS Distributions #define ev_lock_data_t   OSSpinLock
31*aca3beaaSApple OSS Distributions 
32*aca3beaaSApple OSS Distributions #ifdef KERNEL
33*aca3beaaSApple OSS Distributions #define ev_unlock(l)     OSSpinLockUnlock(l)
34*aca3beaaSApple OSS Distributions #define ev_try_lock(l)   OSSpinLockTry(l)
35*aca3beaaSApple OSS Distributions #endif
36*aca3beaaSApple OSS Distributions 
37*aca3beaaSApple OSS Distributions #endif /* ! _IOKIT_IOSHAREDLOCK_H */
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