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 */ 138 139