sys/sys/file2.h

   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. All advertising materials mentioning features or use of this software
  14  *    must display the following acknowledgement:
  15  *      This product includes software developed by the University of
  16  *      California, Berkeley and its contributors.
  17  * 4. Neither the name of the University nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  *
  33  *      @(#)file.h      8.3 (Berkeley) 1/9/95
  34  * $FreeBSD: src/sys/sys/file.h,v 1.22.2.7 2002/11/21 23:39:24 sam Exp $
  35  * $DragonFly: src/sys/sys/file2.h,v 1.8 2006/08/02 01:25:28 dillon Exp $
  36  */
  37
  38 #ifndef _SYS_FILE2_H_
  39 #define _SYS_FILE2_H_
  40
  41 #ifdef _KERNEL
  42
  43 #ifndef _SYS_TYPES_H_
  44 #include <sys/file.h>
  45 #endif
  46
  47 static __inline int
  48 fo_read(
  49         struct file *fp,
  50         struct uio *uio,
  51         struct ucred *cred,
  52         int flags
  53 ) {
  54         int error;
  55
  56         fhold(fp);
  57         error = (*fp->f_ops->fo_read)(fp, uio, cred, flags);
  58         fdrop(fp);
  59         return (error);
  60 }
  61
  62 static __inline int
  63 fo_write(
  64         struct file *fp,
  65         struct uio *uio,
  66         struct ucred *cred,
  67         int flags
  68 ) {
  69         int error;
  70
  71         fhold(fp);
  72         error = (*fp->f_ops->fo_write)(fp, uio, cred, flags);
  73         fdrop(fp);
  74         return (error);
  75 }
  76
  77 static __inline int
  78 fo_ioctl(
  79         struct file *fp,
  80         u_long com,
  81         caddr_t data,
  82         struct ucred *cred
  83 ) {
  84         int error;
  85
  86         fhold(fp);
  87         error = (*fp->f_ops->fo_ioctl)(fp, com, data, cred);
  88         fdrop(fp);
  89         return (error);
  90 }
  91
  92 static __inline int
  93 fo_poll(
  94         struct file *fp,
  95         int events,
  96         struct ucred *cred
  97 ) {
  98         int error;
  99
 100         fhold(fp);
 101         error = (*fp->f_ops->fo_poll)(fp, events, cred);
 102         fdrop(fp);
 103         return (error);
 104 }
 105
 106 static __inline int
 107 fo_stat(struct file *fp, struct stat *sb, struct ucred *cred)
 108 {
 109         int error;
 110
 111         fhold(fp);
 112         error = (*fp->f_ops->fo_stat)(fp, sb, cred);
 113         fdrop(fp);
 114         return (error);
 115 }
 116
 117 static __inline int
 118 fo_close(struct file *fp)
 119 {
 120         return ((*fp->f_ops->fo_close)(fp));
 121 }
 122
 123 static __inline int
 124 fo_shutdown(struct file *fp, int how)
 125 {
 126         return ((*fp->f_ops->fo_shutdown)(fp, how));
 127 }
 128
 129 static __inline int
 130 fo_kqfilter(struct file *fp, struct knote *kn)
 131 {
 132         return ((*fp->f_ops->fo_kqfilter)(fp, kn));
 133 }
 134
 135 #endif /* _KERNEL */
 136
 137 #endif /* !SYS_FILE2_H */
 138