IOCommand.cpp

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    1 /*
    2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
    3  *
    4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
    5  * 
    6  * This file contains Original Code and/or Modifications of Original Code
    7  * as defined in and that are subject to the Apple Public Source License
    8  * Version 2.0 (the 'License'). You may not use this file except in
    9  * compliance with the License. The rights granted to you under the License
   10  * may not be used to create, or enable the creation or redistribution of,
   11  * unlawful or unlicensed copies of an Apple operating system, or to
   12  * circumvent, violate, or enable the circumvention or violation of, any
   13  * terms of an Apple operating system software license agreement.
   14  * 
   15  * Please obtain a copy of the License at
   16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
   17  * 
   18  * The Original Code and all software distributed under the License are
   19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
   20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
   21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
   22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
   23  * Please see the License for the specific language governing rights and
   24  * limitations under the License.
   25  * 
   26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
   27  */
   28 
   29 /*
   30  *
   31  *      Copyright (c) 2000 Apple Computer, Inc.  All rights reserved.
   32  *
   33  *      HISTORY
   34  *
   35  *      11/13/2000              CJS             Created IOCommand class and implementation
   36  *
   37  */
   38 
   39 #include <IOKit/IOCommand.h>
   40 
   41 #define super OSObject
   42 OSDefineMetaClassAndStructors(IOCommand, OSObject);
   43 
   44 
   45 //--------------------------------------------------------------------------
   46 //      init -  initialize our data structures
   47 //--------------------------------------------------------------------------
   48 
   49 bool IOCommand::init(void)
   50 {
   51     if (super::init()) {
   52         queue_init(&fCommandChain);
   53         return true;
   54     }
   55     else
   56         return false;
   57 }

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FreeBSD/Linux Kernel Cross Reference sys/iokit/Kernel/IOCommand.cpp

FreeBSD/Linux Kernel Cross Reference
sys/iokit/Kernel/IOCommand.cpp