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Annotation of driverkit/Examples/UnixDisk/unixDisk.h, revision 1.1.1.1

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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