1 | /* |
2 | * Copyright (c) 2000-2002 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 | /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */ |
29 | /* |
30 | * Copyright (c) 1991, 1993 |
31 | * The Regents of the University of California. All rights reserved. |
32 | * |
33 | * Redistribution and use in source and binary forms, with or without |
34 | * modification, are permitted provided that the following conditions |
35 | * are met: |
36 | * 1. Redistributions of source code must retain the above copyright |
37 | * notice, this list of conditions and the following disclaimer. |
38 | * 2. Redistributions in binary form must reproduce the above copyright |
39 | * notice, this list of conditions and the following disclaimer in the |
40 | * documentation and/or other materials provided with the distribution. |
41 | * 3. All advertising materials mentioning features or use of this software |
42 | * must display the following acknowledgement: |
43 | * This product includes software developed by the University of |
44 | * California, Berkeley and its contributors. |
45 | * 4. Neither the name of the University nor the names of its contributors |
46 | * may be used to endorse or promote products derived from this software |
47 | * without specific prior written permission. |
48 | * |
49 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
50 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
51 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
52 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
53 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
54 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
55 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
56 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
57 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
58 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
59 | * SUCH DAMAGE. |
60 | * |
61 | * @(#)fifo.h 8.3 (Berkeley) 8/10/94 |
62 | */ |
63 | #ifndef __FIFOFS_FOFO_H__ |
64 | #define __FIFOFS_FOFO_H__ |
65 | |
66 | __BEGIN_DECLS |
67 | |
68 | #ifdef BSD_KERNEL_PRIVATE |
69 | |
70 | |
71 | /* |
72 | * This structure is associated with the FIFO vnode and stores |
73 | * the state associated with the FIFO. |
74 | */ |
75 | struct fifoinfo { |
76 | unsigned int fi_flags; |
77 | struct socket *fi_readsock; |
78 | struct socket *fi_writesock; |
79 | long fi_readers; |
80 | long fi_writers; |
81 | unsigned int fi_count; |
82 | }; |
83 | |
84 | #define FIFO_INCREATE 1 |
85 | #define FIFO_CREATEWAIT 2 |
86 | #define FIFO_CREATED 4 |
87 | |
88 | int fifo_close_internal(vnode_t, int, vfs_context_t, int); |
89 | int fifo_freespace(struct vnode *vp, long *count); |
90 | int fifo_charcount(struct vnode *vp, int *count); |
91 | |
92 | #endif /* BSD_KERNEL_PRIVATE */ |
93 | #ifdef KERNEL |
94 | /* |
95 | * Prototypes for fifo operations on vnodes. |
96 | */ |
97 | int fifo_ebadf(void *); |
98 | |
99 | #define fifo_nullop (void (*)(void))nullop |
100 | |
101 | #define fifo_create (int (*) (struct vnop_create_args *))err_create |
102 | #define fifo_mknod (int (*) (struct vnop_mknod_args *))err_mknod |
103 | #define fifo_access (int (*) (struct vnop_access_args *))fifo_ebadf |
104 | #define fifo_getattr (int (*) (struct vnop_getattr_args *))fifo_ebadf |
105 | #define fifo_setattr (int (*) (struct vnop_setattr_args *))fifo_ebadf |
106 | #define fifo_revoke nop_revoke |
107 | #define fifo_mmap (int (*) (struct vnop_mmap_args *))err_mmap |
108 | #define fifo_fsync (int (*) (struct vnop_fsync_args *))fifo_nullop |
109 | #define fifo_remove (int (*) (struct vnop_remove_args *))err_remove |
110 | #define fifo_link (int (*) (struct vnop_link_args *))err_link |
111 | #define fifo_rename (int (*) (struct vnop_rename_args *))err_rename |
112 | #define fifo_mkdir (int (*) (struct vnop_mkdir_args *))err_mkdir |
113 | #define fifo_rmdir (int (*) (struct vnop_rmdir_args *))err_rmdir |
114 | #define fifo_symlink (int (*) (struct vnop_symlink_args *))err_symlink |
115 | #define fifo_readdir (int (*) (struct vnop_readdir_args *))err_readdir |
116 | #define fifo_readlink (int (*) (struct vnop_readlink_args *))err_readlink |
117 | #define fifo_reclaim (int (*) (struct vnop_reclaim_args *))fifo_nullop |
118 | #define fifo_strategy (int (*) (struct vnop_strategy_args *))err_strategy |
119 | #define fifo_valloc (int (*) (struct vnop_valloc_args *))err_valloc |
120 | #define fifo_vfree (int (*) (struct vnop_vfree_args *))err_vfree |
121 | #define fifo_bwrite (int (*) (struct vnop_bwrite_args *))fifo_nullop |
122 | #define fifo_blktooff (int (*) (struct vnop_blktooff_args *))err_blktooff |
123 | |
124 | int fifo_lookup(struct vnop_lookup_args *); |
125 | int fifo_open(struct vnop_open_args *); |
126 | int fifo_close(struct vnop_close_args *); |
127 | int fifo_read(struct vnop_read_args *); |
128 | int fifo_write(struct vnop_write_args *); |
129 | int fifo_ioctl(struct vnop_ioctl_args *); |
130 | int fifo_select(struct vnop_select_args *); |
131 | int fifo_inactive(struct vnop_inactive_args *); |
132 | int fifo_pathconf(struct vnop_pathconf_args *); |
133 | int fifo_advlock(struct vnop_advlock_args *); |
134 | |
135 | #endif /* KERNEL */ |
136 | |
137 | __END_DECLS |
138 | |
139 | #endif /* __FIFOFS_FOFO_H__ */ |
140 | |