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Annotation of kernel/driverkit/KernQueue.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 <objc/Object.h>
        !            39: 
        !            40: typedef struct _QueueChain {
        !            41:     void       *next;
        !            42:     void       *prev;
        !            43: } _QueueChain;
        !            44: 
        !            45: @interface KernQueue : Object
        !            46: {
        !            47: @private
        !            48:     _QueueChain        _head;
        !            49: }
        !            50: 
        !            51: - first;
        !            52: - last;
        !            53: 
        !            54: - dequeueFirst;
        !            55: - dequeueLast;
        !            56: 
        !            57: - dequeueFirstObject;
        !            58: - dequeueLastObject;
        !            59: 
        !            60: - enqueueObjectAsFirst: object;
        !            61: - enqueueObjectAsLast: object;
        !            62: 
        !            63: - (BOOL)isEmpty;
        !            64: 
        !            65: @end
        !            66: 
        !            67: @interface KernQueueEntry : Object
        !            68: {
        !            69: @private
        !            70:     _QueueChain        _link;
        !            71:     id         _queue;
        !            72:     id         _object;
        !            73: }
        !            74: 
        !            75: - initForQueue: queue
        !            76:     withObject: object;
        !            77: 
        !            78: - freeObject;
        !            79: 
        !            80: - enterAsFirst;
        !            81: - enterAsFirstOnQueue: queue;
        !            82: - enterAsLast;
        !            83: - enterAsLastOnQueue: queue;
        !            84: 
        !            85: - removeFromQueue;
        !            86: - insertAfterEntry: prevEntry;
        !            87: - insertBeforeEntry: nextEntry;
        !            88: 
        !            89: - next;
        !            90: - prev;
        !            91: - nextObject: (id *)nextEntry;
        !            92: - prevObject: (id *)prevEntry;
        !            93: 
        !            94: - object;
        !            95: - queue;
        !            96: 
        !            97: - (BOOL)isQueued;
        !            98: 
        !            99: @end
        !           100: 
        !           101: KernQueueEntry *
        !           102: KernQueueFirst(
        !           103:        KernQueue       *queue
        !           104: );
        !           105: KernQueueEntry *
        !           106: KernQueueLast(
        !           107:        KernQueue       *queue
        !           108: );
        !           109: KernQueueEntry *
        !           110: KernQueueNext(
        !           111:        KernQueueEntry  *entry
        !           112: );
        !           113: KernQueueEntry *
        !           114: KernQueuePrev(
        !           115:        KernQueueEntry  *entry
        !           116: );
        !           117: 
        !           118: void *
        !           119: KernQueueEntryObject(
        !           120:        KernQueueEntry  *entry
        !           121: );
        !           122: void *
        !           123: KernQueueNextObject(
        !           124:        KernQueueEntry  **entry         /* IN/OUT */
        !           125: );
        !           126: void *
        !           127: KernQueuePrevObject(
        !           128:        KernQueueEntry  **entry         /* IN/OUT */
        !           129: );
        !           130: 
        !           131: BOOL
        !           132: KernQueueIsEmpty(
        !           133:        KernQueue       *queue
        !           134: );
        !           135: BOOL
        !           136: KernQueueEntryIsQueued(
        !           137:        KernQueueEntry  *entry
        !           138: );
        !           139: 
        !           140: #endif

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