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Annotation of driverkit/Examples/KStub/IOStubUnix.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: /*     Copyright (c) 1991 NeXT Computer, Inc.  All rights reserved. 
                     25:  *
                     26:  * IOStubUnix.h
                     27:  *
                     28:  * HISTORY
                     29:  * 5-Apr-91    Doug Mitchell at NeXT
                     30:  *      Created. 
                     31:  */
                     32: 
                     33: #import <bsd/sys/types.h>
                     34: #import <bsd/sys/buf.h>
                     35: #import <objc/objc.h>
                     36: #import <bsd/sys/uio.h>
                     37: 
                     38: #define        STUB_UNIT(dev)          (minor(dev) >> 3) 
                     39: #define STUB_MAX_PHYS_IO       (1024 * 1024)
                     40: 
                     41: typedef struct {
                     42:        /*
                     43:         * One per unit. Each one of these maps to one node in
                     44:         * /dev/ and to one instance of the IOStub object.
                     45:         */
                     46:        struct buf *physbuf;            /* for phys I/O */
                     47:        id stub_id;                     /* id of IOStub object */
                     48:        
                     49: } stub_object_t;
                     50: 
                     51: extern stub_object_t stub_object[];
                     52: 
                     53: extern int stub_open(dev_t dev, int flag);
                     54: extern int stub_close(dev_t dev);
                     55: extern int stub_read(dev_t dev, struct uio *uiop);
                     56: extern int stub_write(dev_t dev, struct uio *uiop);
                     57: extern int stub_strategy(register struct buf *bp);
                     58: extern int stub_ioctl(dev_t dev, 
                     59:        int cmd, 
                     60:        caddr_t data, 
                     61:        int flag);
                     62: 

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