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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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