proc->thread stage 4: rework the VFS and DEVICE subsystems to take thread
[dragonfly.git] / sys / vfs / nwfs / nwfs_node.h
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1/*
2 * Copyright (c) 1999, 2000 Boris Popov
3 * 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 Boris Popov.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * $FreeBSD: src/sys/nwfs/nwfs_node.h,v 1.3.2.2 2000/10/25 02:28:42 bp Exp $
dadab5e9 33 * $DragonFly: src/sys/vfs/nwfs/nwfs_node.h,v 1.3 2003/06/25 03:56:08 dillon Exp $
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34 */
35#ifndef _NWFS_NODE_H_
36#define _NWFS_NODE_H_
37
38#define NWFS_ROOT_INO 0x7ffffffd
39#define NWFS_ROOTVOL "#.ROOT"
40
41/* Bits for nwnode.n_flag */
42#define NFLUSHINPROG 0x0001
43#define NFLUSHWANT 0x0002 /* they should gone ... */
44#define NMODIFIED 0x0004 /* bogus, until async IO implemented */
45#define NNEW 0x0008 /* vnode has been allocated */
46#define NVOLUME 0x0010 /* vnode references a volume */
47#define NSHOULDFREE 0x0020 /* vnode should be removed from hash */
48
49struct nwnode {
50 struct lock n_lock; /* Keep this first */
51 LIST_ENTRY(nwnode) n_hash;
52 struct vnode *n_vnode;
53 struct vattr n_vattr;
54 struct nwmount *n_mount;
55 time_t n_atime; /* attributes cache time*/
56 time_t n_ctime;
57 time_t n_mtime;
58 int n_flag;
59 ncpfid n_parent;
60 ncpfid n_fid;
61 int n_refparent;
62 u_long n_attr; /* LH */
63 u_long n_size;
64 u_long n_dosfid;
65 int opened;
66/* int access;*/
67 u_long n_origfh;
68 ncp_fh n_fh;
69 struct nw_search_seq n_seq;
70 u_char n_nmlen;
71 u_char n_name[256];
72};
73
74#define VTONW(vp) ((struct nwnode *)(vp)->v_data)
75#define NWTOV(np) ((struct vnode *)(np)->n_vnode)
76#define NWCMPF(f1,f2) ((f1)->f_parent == (f2)->f_parent && \
77 (f1)->f_id == (f2)->f_id)
78#define NWCMPN(np1,np2) NWCMPF(&(np1)->n_fid, &(np2)->n_fid)
79#define NWCMPV(vp1,vp2) NWCMPN(VTONW(vp1),VTONW(vp2))
80
81struct vop_getpages_args;
82struct vop_inactive_args;
83struct vop_putpages_args;
84struct vop_reclaim_args;
85struct ucred;
86struct uio;
87
88void nwfs_hash_init(void);
89void nwfs_hash_free(void);
90int nwfs_allocvp(struct mount *mp, ncpfid fid, struct vnode **vpp);
dadab5e9 91int nwfs_lookupnp(struct nwmount *nmp, ncpfid fid, struct thread *td,
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92 struct nwnode **npp);
93int nwfs_inactive(struct vop_inactive_args *);
94int nwfs_reclaim(struct vop_reclaim_args *);
95int nwfs_nget(struct mount *mp, ncpfid fid, struct nw_entry_info *fap,
96 struct vnode *dvp, struct vnode **vpp);
97
98int nwfs_getpages(struct vop_getpages_args *);
99int nwfs_putpages(struct vop_putpages_args *);
100int nwfs_readvnode(struct vnode *vp, struct uio *uiop, struct ucred *cred);
101int nwfs_writevnode(struct vnode *vp, struct uio *uiop, struct ucred *cred, int ioflag);
102void nwfs_attr_cacheenter(struct vnode *vp, struct nw_entry_info *fi);
103int nwfs_attr_cachelookup(struct vnode *vp,struct vattr *va);
104
105#define nwfs_attr_cacheremove(vp) VTONW(vp)->n_atime = 0
106
107#endif /* _NWFS_NODE_H_ */