81 lines
2.8 KiB
C
81 lines
2.8 KiB
C
/* $NetBSD: fdesc.h,v 1.15 2003/08/07 16:32:32 agc Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1992, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This code is derived from software donated to Berkeley by
|
|
* Jan-Simon Pendry.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* @(#)fdesc.h 8.8 (Berkeley) 4/3/95
|
|
*
|
|
* #Id: fdesc.h,v 1.8 1993/04/06 15:28:33 jsp Exp #
|
|
*/
|
|
|
|
#ifdef _KERNEL
|
|
struct fdescmount {
|
|
struct vnode *f_root; /* Root node */
|
|
};
|
|
|
|
#define FD_ROOT 2
|
|
#define FD_DEVFD 3
|
|
#define FD_STDIN 4
|
|
#define FD_STDOUT 5
|
|
#define FD_STDERR 6
|
|
#define FD_CTTY 7
|
|
#define FD_DESC 8
|
|
#define FD_MAX 12
|
|
|
|
typedef enum {
|
|
Froot,
|
|
Fdevfd,
|
|
Fdesc,
|
|
Flink,
|
|
Fctty
|
|
} fdntype;
|
|
|
|
struct fdescnode {
|
|
LIST_ENTRY(fdescnode) fd_hash; /* Hash list */
|
|
struct vnode *fd_vnode; /* Back ptr to vnode */
|
|
fdntype fd_type; /* Type of this node */
|
|
unsigned fd_fd; /* Fd to be dup'ed */
|
|
char *fd_link; /* Link to fd/n */
|
|
int fd_ix; /* filesystem index */
|
|
};
|
|
|
|
#define VFSTOFDESC(mp) ((struct fdescmount *)((mp)->mnt_data))
|
|
#define VTOFDESC(vp) ((struct fdescnode *)(vp)->v_data)
|
|
|
|
extern dev_t devctty;
|
|
extern void fdesc_init __P((void));
|
|
extern void fdesc_done __P((void));
|
|
extern int fdesc_root __P((struct mount *, struct vnode **));
|
|
extern int fdesc_allocvp __P((fdntype, int, struct mount *, struct vnode **));
|
|
extern int (**fdesc_vnodeop_p) __P((void *));
|
|
extern struct vfsops fdesc_vfsops;
|
|
#endif /* _KERNEL */
|