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Annotation of kernel/driverkit/KernLock.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
                      3:  *
                      4:  * @APPLE_LICENSE_HEADER_START@
                      5:  * 
                      6:  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
                      7:  * Reserved.  This file contains Original Code and/or Modifications of
                      8:  * Original Code as defined in and that are subject to the Apple Public
                      9:  * Source License Version 1.1 (the "License").  You may not use this file
                     10:  * except in compliance with the License.  Please obtain a copy of the
                     11:  * License at http://www.apple.com/publicsource and read it before using
                     12:  * this file.
                     13:  * 
                     14:  * The Original Code and all software distributed under the License are
                     15:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
                     16:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
                     17:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
                     18:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
                     19:  * License for the specific language governing rights and limitations
                     20:  * under the License.
                     21:  * 
                     22:  * @APPLE_LICENSE_HEADER_END@
                     23:  */
                     24: 
                     25: /*
                     26:  * Copyright (c) 1994 NeXT Computer, Inc.
                     27:  *
                     28:  * Kernel generic lock object.
                     29:  *
                     30:  * HISTORY
                     31:  *
                     32:  * 4 July 1994 ? at NeXT
                     33:  *     Created.
                     34:  */
                     35: 
                     36: #ifdef KERNEL_PRIVATE
                     37: 
                     38: #import <objc/Object.h>
                     39: 
                     40: @interface KernLock : Object
                     41: {
                     42: @private
                     43:     void               *_slock;
                     44:     int                        _lockLevel, _savedLevel;
                     45: }
                     46: 
                     47: - initWithLevel: (int)level;
                     48: 
                     49: - (void)acquire;
                     50: - (void)release;
                     51: 
                     52: - (int)level;
                     53: 
                     54: @end
                     55: 
                     56: void
                     57: KernLockAcquire(
                     58:        KernLock        *lock
                     59: );
                     60: void
                     61: KernLockRelease(
                     62:        KernLock        *lock
                     63: );
                     64: 
                     65: #endif

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