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Annotation of driverkit/Examples/UnixDisk/unixDisk.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: /*     unixDisk.h      1.0     01/31/91        (c) 1991 NeXT   
        !            25:  *
        !            26:  * unixDisk.h - Exported Interface for unix Disk superclass. Provides IODevice
        !            27:  *             interface for current "/dev" disks.
        !            28:  *
        !            29:  * HISTORY
        !            30:  * 31-Jan-91    Doug Mitchell at NeXT
        !            31:  *      Created. 
        !            32:  */
        !            33:  
        !            34: #import <bsd/sys/types.h>
        !            35: #import <driverkit/return.h>
        !            36: #import <driverkit/IODevice.h>
        !            37: #import <driverkit/IODisk.h>
        !            38: #import <driverkit/IODiskRwDistributed.h>
        !            39: #import "unixDiskTypes.h"
        !            40: #import <driverkit/volCheck.h>
        !            41: 
        !            42: #define MAX_IO_SIZE    (64 * 1024)
        !            43: #define MAX_IO_THREADS 8
        !            44: 
        !            45: @interface unixDisk:IODisk<IODiskReadingAndWriting,
        !            46:        IOPhysicalDiskMethods, DiskRwDistributed>
        !            47: {
        !            48:        int             unix_fd[MAX_IO_THREADS];// unix file descriptor for
        !            49:                                                // each thread
        !            50:        IOQueue_t       IOQueue;                // queue of IOBuf's; this is
        !            51:                                                // work to be done by 
        !            52:                                                // unix_thread 
        !            53:        int             _diskType;              // PR_DRIVE_FLOPPY, etc.
        !            54:        char            unix_name[20];          // "/dev/rsd0h", etc.
        !            55:        
        !            56: }
        !            57: 
        !            58: - unixInit                     : (int)numThreads;
        !            59: - (int)diskType;
        !            60: - (void)setDiskType            : (int)type;
        !            61: - (void) setLogicalDisk        : diskId;
        !            62: - registerPartition            : partId;
        !            63: 
        !            64: @end
        !            65: 
        !            66: extern IOReturn errno_to_mio(int Errno);

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