1 /*
2 * Copyright (c) 1982, 1986, 1989, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * @(#)file.h 8.3 (Berkeley) 1/9/95
30 * $FreeBSD: src/sys/sys/file.h,v 1.22.2.7 2002/11/21 23:39:24 sam Exp $
31 * $DragonFly: src/sys/sys/file2.h,v 1.8 2006/08/02 01:25:28 dillon Exp $
32 */
33
34 #ifndef _SYS_FILE2_H_
35 #define _SYS_FILE2_H_
36
37 #ifdef _KERNEL
38
39 #ifndef _SYS_FILE_H_
40 #include <sys/file.h>
41 #endif
42
43 static __inline int
fo_read(struct file * fp,struct uio * uio,struct ucred * cred,int flags)44 fo_read(
45 struct file *fp,
46 struct uio *uio,
47 struct ucred *cred,
48 int flags
49 ) {
50 int error;
51
52 fhold(fp);
53 error = (*fp->f_ops->fo_read)(fp, uio, cred, flags);
54 fdrop(fp);
55 return (error);
56 }
57
58 static __inline int
fo_write(struct file * fp,struct uio * uio,struct ucred * cred,int flags)59 fo_write(
60 struct file *fp,
61 struct uio *uio,
62 struct ucred *cred,
63 int flags
64 ) {
65 int error;
66
67 fhold(fp);
68 error = (*fp->f_ops->fo_write)(fp, uio, cred, flags);
69 fdrop(fp);
70 return (error);
71 }
72
73 static __inline int
fo_ioctl(struct file * fp,u_long com,caddr_t data,struct ucred * cred,struct sysmsg * msg)74 fo_ioctl(
75 struct file *fp,
76 u_long com,
77 caddr_t data,
78 struct ucred *cred,
79 struct sysmsg *msg
80 ) {
81 int error;
82
83 fhold(fp);
84 error = (*fp->f_ops->fo_ioctl)(fp, com, data, cred, msg);
85 fdrop(fp);
86 return (error);
87 }
88
89 static __inline int
fo_stat(struct file * fp,struct stat * sb,struct ucred * cred)90 fo_stat(struct file *fp, struct stat *sb, struct ucred *cred)
91 {
92 int error;
93
94 fhold(fp);
95 error = (*fp->f_ops->fo_stat)(fp, sb, cred);
96 fdrop(fp);
97 return (error);
98 }
99
100 static __inline int
fo_close(struct file * fp)101 fo_close(struct file *fp)
102 {
103 return ((*fp->f_ops->fo_close)(fp));
104 }
105
106 static __inline int
fo_shutdown(struct file * fp,int how)107 fo_shutdown(struct file *fp, int how)
108 {
109 return ((*fp->f_ops->fo_shutdown)(fp, how));
110 }
111
112 static __inline int
fo_kqfilter(struct file * fp,struct knote * kn)113 fo_kqfilter(struct file *fp, struct knote *kn)
114 {
115 return ((*fp->f_ops->fo_kqfilter)(fp, kn));
116 }
117
118 static __inline int
fo_seek(struct file * fp,off_t offset,int whence,off_t * res)119 fo_seek(struct file *fp, off_t offset, int whence, off_t *res)
120 {
121 return ((*fp->f_ops->fo_seek)(fp, offset, whence, res));
122 }
123
124 #endif /* _KERNEL */
125
126 #endif /* !SYS_FILE2_H */
127
128