darwin-xnu/bsd/miscfs/fdesc/fdesc.h
<<
>>
Prefs
   1/*
   2 * Copyright (c) 2000-2002 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) 1992, 1993
  25 *      The Regents of the University of California.  All rights reserved.
  26 *
  27 * This code is derived from software donated to Berkeley by
  28 * Jan-Simon Pendry.
  29 *
  30 * Redistribution and use in source and binary forms, with or without
  31 * modification, are permitted provided that the following conditions
  32 * are met:
  33 * 1. Redistributions of source code must retain the above copyright
  34 *    notice, this list of conditions and the following disclaimer.
  35 * 2. Redistributions in binary form must reproduce the above copyright
  36 *    notice, this list of conditions and the following disclaimer in the
  37 *    documentation and/or other materials provided with the distribution.
  38 * 3. All advertising materials mentioning features or use of this software
  39 *    must display the following acknowledgement:
  40 *      This product includes software developed by the University of
  41 *      California, Berkeley and its contributors.
  42 * 4. Neither the name of the University nor the names of its contributors
  43 *    may be used to endorse or promote products derived from this software
  44 *    without specific prior written permission.
  45 *
  46 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  47 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  48 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  49 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  50 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  51 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  52 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  53 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  54 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  55 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  56 * SUCH DAMAGE.
  57 *
  58 *      @(#)fdesc.h     8.6 (Berkeley) 8/20/94
  59 *
  60 * #Id: fdesc.h,v 1.8 1993/04/06 15:28:33 jsp Exp #
  61 */
  62#ifndef __FDESC_FDESC_H__
  63#define __FDESC_FDESC_H__
  64
  65#include  <sys/appleapiopts.h>
  66
  67#ifdef __APPLE_API_PRIVATE
  68#ifdef KERNEL
  69struct fdescmount {
  70        struct vnode    *f_root;        /* Root node */
  71};
  72
  73#define FD_ROOT         2
  74#define FD_DEVFD        3
  75#define FD_STDIN        4
  76#define FD_STDOUT       5
  77#define FD_STDERR       6
  78#define FD_DESC         8
  79#define FD_MAX          12
  80
  81typedef enum {
  82        Froot,
  83        Fdevfd,
  84        Fdesc,
  85        Flink
  86} fdntype;
  87
  88struct fdescnode {
  89        LIST_ENTRY(fdescnode) fd_hash;  /* Hash list */
  90        struct vnode    *fd_vnode;      /* Back ptr to vnode */
  91        fdntype                 fd_type;        /* Type of this node */
  92        unsigned                fd_fd;          /* Fd to be dup'ed */
  93        char                    *fd_link;       /* Link to fd/n */
  94        int                             fd_ix;          /* filesystem index */
  95};
  96
  97#define VFSTOFDESC(mp)  ((struct fdescmount *)((mp)->mnt_data))
  98#define VTOFDESC(vp) ((struct fdescnode *)(vp)->v_data)
  99
 100extern int fdesc_allocvp(fdntype, int, struct mount *, struct vnode **, enum vtype);
 101extern int fdesc_badop(void);
 102extern int fdesc_getattr(struct vnop_getattr_args *ap);
 103extern int fdesc_inactive(struct vnop_inactive_args *ap);
 104extern int fdesc_init(struct vfsconf *);
 105extern int fdesc_ioctl(struct vnop_ioctl_args *ap);
 106extern int fdesc_lookup(struct vnop_lookup_args *ap);
 107extern int fdesc_open(struct vnop_open_args *ap);
 108extern int fdesc_pathconf(struct vnop_pathconf_args *ap);
 109extern int fdesc_read(struct vnop_read_args *ap);
 110extern int fdesc_readdir(struct vnop_readdir_args *ap);
 111extern int fdesc_readlink(struct vnop_readlink_args *ap);
 112extern int fdesc_reclaim(struct vnop_reclaim_args *ap);
 113extern int fdesc_root(struct mount *, struct vnode **, vfs_context_t);
 114extern int fdesc_select(struct vnop_select_args *ap);
 115extern int fdesc_setattr(struct vnop_setattr_args *ap);
 116extern int fdesc_write(struct vnop_write_args *ap);
 117
 118extern int (**fdesc_vnodeop_p)(void *);
 119extern struct vfsops fdesc_vfsops;
 120#endif /* KERNEL */
 121#endif /* __APPLE_API_PRIVATE */
 122#endif /* __FDESC_FDESC_H__ */
 123
lxr.linux.no kindly hosted by Redpill Linpro AS, provider of Linux consulting and operations services since 1995.