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Annotation of kernel/driverkit/KernQueuePrivate.h, revision 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 queue object(s).
        !            29:  *
        !            30:  * HISTORY
        !            31:  *
        !            32:  * 24 June 1994 ? at NeXT
        !            33:  *     Created.
        !            34:  */
        !            35:  
        !            36: #ifdef KERNEL_PRIVATE
        !            37: 
        !            38: #import <driverkit/KernQueue.h>
        !            39: 
        !            40: typedef struct KernQueue_ {
        !            41:     @defs(KernQueue)
        !            42: } KernQueue_;
        !            43: 
        !            44: #define First          _head.next
        !            45: #define Last           _head.prev
        !            46: 
        !            47: #define        _first          ((id)First)
        !            48: #define _last          ((id)Last)
        !            49: 
        !            50: #define QFirst(q)      ((KernQueue_ *)(q))->First
        !            51: #define QLast(q)       ((KernQueue_ *)(q))->Last
        !            52: 
        !            53: typedef struct KernQueueEntry_ {
        !            54:     @defs(KernQueueEntry)
        !            55: } KernQueueEntry_;
        !            56: 
        !            57: #define        Next            _link.next
        !            58: #define Prev           _link.prev
        !            59: 
        !            60: #define _next          ((id)Next)
        !            61: #define _prev          ((id)Prev)
        !            62: 
        !            63: #define QENext(e)      ((KernQueueEntry_ *)(e))->Next
        !            64: #define QEPrev(e)      ((KernQueueEntry_ *)(e))->Prev
        !            65: #define QEQueue(e)     ((KernQueueEntry_ *)(e))->_queue
        !            66: #define QEObject(e)    ((KernQueueEntry_ *)(e))->_object
        !            67: 
        !            68: #endif

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