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1.1 root 1: /*
2: * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * The contents of this file constitute Original Code as defined in and
7: * are subject to the Apple Public Source License Version 1.1 (the
8: * "License"). You may not use this file except in compliance with the
9: * License. Please obtain a copy of the License at
10: * http://www.apple.com/publicsource and read it before using this file.
11: *
12: * This Original Code and all software distributed under the License are
13: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
14: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
15: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
16: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
17: * License for the specific language governing rights and limitations
18: * under the License.
19: *
20: * @APPLE_LICENSE_HEADER_END@
21: */
22: /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
23: /*
24: * Copyright (c) 1989, 1993
25: * The Regents of the University of California. All rights reserved.
26: *
27: * Redistribution and use in source and binary forms, with or without
28: * modification, are permitted provided that the following conditions
29: * are met:
30: * 1. Redistributions of source code must retain the above copyright
31: * notice, this list of conditions and the following disclaimer.
32: * 2. Redistributions in binary form must reproduce the above copyright
33: * notice, this list of conditions and the following disclaimer in the
34: * documentation and/or other materials provided with the distribution.
35: * 3. All advertising materials mentioning features or use of this software
36: * must display the following acknowledgement:
37: * This product includes software developed by the University of
38: * California, Berkeley and its contributors.
39: * 4. Neither the name of the University nor the names of its contributors
40: * may be used to endorse or promote products derived from this software
41: * without specific prior written permission.
42: *
43: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
44: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
45: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
46: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
47: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
48: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
49: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
50: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
51: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
52: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53: * SUCH DAMAGE.
54: *
55: * @(#)mfsnode.h 8.2 (Berkeley) 8/11/93
56: */
57:
58: /*
59: * This structure defines the control data for the memory based file system.
60: */
61:
62: struct mfsnode {
63: struct vnode *mfs_vnode; /* vnode associated with this mfsnode */
64: caddr_t mfs_baseoff; /* base of file system in memory */
65: long mfs_size; /* size of memory file system */
66: pid_t mfs_pid; /* supporting process pid */
67: struct buf *mfs_buflist; /* list of I/O requests */
68: long mfs_spare[4];
69: };
70:
71: /*
72: * Convert between mfsnode pointers and vnode pointers
73: */
74: #define VTOMFS(vp) ((struct mfsnode *)(vp)->v_data)
75: #define MFSTOV(mfsp) ((mfsp)->mfs_vnode)
76:
77: /* Prototypes for MFS operations on vnodes. */
78: #define mfs_lookup ((int (*) __P((struct vop_lookup_args *)))mfs_badop)
79: #define mfs_create ((int (*) __P((struct vop_create_args *)))mfs_badop)
80: #define mfs_mknod ((int (*) __P((struct vop_mknod_args *)))mfs_badop)
81: #define mfs_access ((int (*) __P((struct vop_access_args *)))mfs_badop)
82: #define mfs_getattr ((int (*) __P((struct vop_getattr_args *)))mfs_badop)
83: #define mfs_setattr ((int (*) __P((struct vop_setattr_args *)))mfs_badop)
84: #define mfs_read ((int (*) __P((struct vop_read_args *)))mfs_badop)
85: #define mfs_write ((int (*) __P((struct vop_write_args *)))mfs_badop)
86: #define mfs_select ((int (*) __P((struct vop_select_args *)))mfs_badop)
87: #define mfs_mmap ((int (*) __P((struct vop_mmap_args *)))mfs_badop)
88: #define mfs_seek ((int (*) __P((struct vop_seek_args *)))mfs_badop)
89: #define mfs_remove ((int (*) __P((struct vop_remove_args *)))mfs_badop)
90: #define mfs_link ((int (*) __P((struct vop_link_args *)))mfs_badop)
91: #define mfs_rename ((int (*) __P((struct vop_rename_args *)))mfs_badop)
92: #define mfs_mkdir ((int (*) __P((struct vop_mkdir_args *)))mfs_badop)
93: #define mfs_rmdir ((int (*) __P((struct vop_rmdir_args *)))mfs_badop)
94: #define mfs_symlink ((int (*) __P((struct vop_symlink_args *)))mfs_badop)
95: #define mfs_readdir ((int (*) __P((struct vop_readdir_args *)))mfs_badop)
96: #define mfs_readlink ((int (*) __P((struct vop_readlink_args *)))mfs_badop)
97: #define mfs_abortop ((int (*) __P((struct vop_abortop_args *)))mfs_badop)
98: #define mfs_lock ((int (*) __P((struct vop_lock_args *)))nullop)
99: #define mfs_unlock ((int (*) __P((struct vop_unlock_args *)))nullop)
100: #define mfs_islocked ((int (*) __P((struct vop_islocked_args *)))nullop)
101: #define mfs_pathconf ((int (*) __P((struct vop_pathconf_args *)))mfs_badop)
102: #define mfs_advlock ((int (*) __P((struct vop_advlock_args *)))mfs_badop)
103: #define mfs_blkatoff ((int (*) __P((struct vop_blkatoff_args *)))mfs_badop)
104: #define mfs_valloc ((int (*) __P((struct vop_valloc_args *)))mfs_badop)
105: #define mfs_vfree ((int (*) __P((struct vop_vfree_args *)))mfs_badop)
106: #define mfs_truncate ((int (*) __P((struct vop_truncate_args *)))mfs_badop)
107: #define mfs_update ((int (*) __P((struct vop_update_args *)))mfs_badop)
108: #define mfs_bwrite ((int (*) __P((struct vop_bwrite_args *)))vn_bwrite)
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