[unix-history] / sys / ufs / mfsnode.h

/*
 * Copyright (c) 1989 The Regents of the University of California.
 * All rights reserved.
 *
 * 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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. 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.
 *
 *	from: @(#)mfsnode.h	7.3 (Berkeley) 4/16/91
 *	$Id$
 */

/*
 * This structure defines the control data for the memory
 * based file system.
 */

struct mfsnode {
	struct	vnode *mfs_vnode;	/* vnode associated with this mfsnode */
	caddr_t	mfs_baseoff;		/* base of file system in memory */
	long	mfs_size;		/* size of memory file system */
	pid_t	mfs_pid;		/* supporting process pid */
	struct	buf *mfs_buflist;	/* list of I/O requests */
	long	mfs_spare[4];
};

/*
 * Convert between mfsnode pointers and vnode pointers
 */
#define VTOMFS(vp)	((struct mfsnode *)(vp)->v_data)
#define MFSTOV(mfsp)	((mfsp)->mfs_vnode)

/*
 * Prototypes for MFS operations on vnodes.
 */
int	mfs_badop();
#define mfs_lookup ((int (*) __P(( \
		struct vnode *vp, \
		struct nameidata *ndp, \
		struct proc *p))) mfs_badop)
#define mfs_create ((int (*) __P(( \
		struct nameidata *ndp, \
		struct vattr *vap, \
		struct proc *p))) mfs_badop)
#define mfs_mknod ((int (*) __P(( \
		struct nameidata *ndp, \
		struct vattr *vap, \
		struct ucred *cred, \
		struct proc *p))) mfs_badop)
int	mfs_open __P((
		struct vnode *vp,
		int mode,
		struct ucred *cred,
		struct proc *p));
int	mfs_close __P((
		struct vnode *vp,
		int fflag,
		struct ucred *cred,
		struct proc *p));
#define mfs_access ((int (*) __P(( \
		struct vnode *vp, \
		int mode, \
		struct ucred *cred, \
		struct proc *p))) mfs_badop)
#define mfs_getattr ((int (*) __P(( \
		struct vnode *vp, \
		struct vattr *vap, \
		struct ucred *cred, \
		struct proc *p))) mfs_badop)
#define mfs_setattr ((int (*) __P(( \
		struct vnode *vp, \
		struct vattr *vap, \
		struct ucred *cred, \
		struct proc *p))) mfs_badop)
#define mfs_read ((int (*) __P(( \
		struct vnode *vp, \
		struct uio *uio, \
		int ioflag, \
		struct ucred *cred))) mfs_badop)
#define mfs_write ((int (*) __P(( \
		struct vnode *vp, \
		struct uio *uio, \
		int ioflag, \
		struct ucred *cred))) mfs_badop)
int	mfs_ioctl __P((
		struct vnode *vp,
		int command,
		caddr_t data,
		int fflag,
		struct ucred *cred,
		struct proc *p));
#define mfs_select ((int (*) __P(( \
		struct vnode *vp, \
		int which, \
		int fflags, \
		struct ucred *cred, \
		struct proc *p))) mfs_badop)
#define mfs_mmap ((int (*) __P(( \
		struct vnode *vp, \
		int fflags, \
		struct ucred *cred, \
		struct proc *p))) mfs_badop)
#define mfs_fsync ((int (*) __P(( \
		struct vnode *vp, \
		int fflags, \
		struct ucred *cred, \
		int waitfor, \
		struct proc *p))) mfs_badop)
#define mfs_seek ((int (*) __P(( \
		struct vnode *vp, \
		off_t oldoff, \
		off_t newoff, \
		struct ucred *cred))) mfs_badop)
#define mfs_remove ((int (*) __P(( \
		struct nameidata *ndp, \
		struct proc *p))) mfs_badop)
#define mfs_link ((int (*) __P(( \
		struct vnode *vp, \
		struct nameidata *ndp, \
		struct proc *p))) mfs_badop)
#define mfs_rename ((int (*) __P(( \
		struct nameidata *fndp, \
		struct nameidata *tdnp, \
		struct proc *p))) mfs_badop)
#define mfs_mkdir ((int (*) __P(( \
		struct nameidata *ndp, \
		struct vattr *vap, \
		struct proc *p))) mfs_badop)
#define mfs_rmdir ((int (*) __P(( \
		struct nameidata *ndp, \
		struct proc *p))) mfs_badop)
#define mfs_symlink ((int (*) __P(( \
		struct nameidata *ndp, \
		struct vattr *vap, \
		char *target, \
		struct proc *p))) mfs_badop)
#define mfs_readdir ((int (*) __P(( \
		struct vnode *vp, \
		struct uio *uio, \
		struct ucred *cred, \
		int *eofflagp))) mfs_badop)
#define mfs_readlink ((int (*) __P(( \
		struct vnode *vp, \
		struct uio *uio, \
		struct ucred *cred))) mfs_badop)
#define mfs_abortop ((int (*) __P(( \
		struct nameidata *ndp))) mfs_badop)
int	mfs_inactive __P((
		struct vnode *vp,
		struct proc *p));
#define mfs_reclaim ((int (*) __P(( \
		struct vnode *vp))) nullop)
#define mfs_lock ((int (*) __P(( \
		struct vnode *vp))) nullop)
#define mfs_unlock ((int (*) __P(( \
		struct vnode *vp))) nullop)
int	mfs_bmap __P((
		struct vnode *vp,
		daddr_t bn,
		struct vnode **vpp,
		daddr_t *bnp));
int	mfs_strategy __P((
		struct buf *bp));
int	mfs_print __P((
		struct vnode *vp));
#define mfs_islocked ((int (*) __P(( \
		struct vnode *vp))) nullop)
#define mfs_advlock ((int (*) __P(( \
		struct vnode *vp, \
		caddr_t id, \
		int op, \
		struct flock *fl, \
		int flags))) mfs_badop)
Commit	Line	Data
15637ed4 RG	1	/*
	2	* Copyright (c) 1989 The Regents of the University of California.
	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 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	*
1eb58e01 RG	33	* from: @(#)mfsnode.h 7.3 (Berkeley) 4/16/91
1eb58e01 RG	34	* $Id$
15637ed4 RG	35	*/
	36
	37	/*
	38	* This structure defines the control data for the memory
	39	* based file system.
	40	*/
	41
	42	struct mfsnode {
	43	struct vnode mfs_vnode; / vnode associated with this mfsnode */
	44	caddr_t mfs_baseoff; /* base of file system in memory */
	45	long mfs_size; /* size of memory file system */
	46	pid_t mfs_pid; /* supporting process pid */
	47	struct buf mfs_buflist; / list of I/O requests */
	48	long mfs_spare[4];
	49	};
	50
	51	/*
	52	* Convert between mfsnode pointers and vnode pointers
	53	*/
	54	#define VTOMFS(vp) ((struct mfsnode *)(vp)->v_data)
	55	#define MFSTOV(mfsp) ((mfsp)->mfs_vnode)
	56
	57	/*
	58	* Prototypes for MFS operations on vnodes.
	59	*/
	60	int mfs_badop();
	61	#define mfs_lookup ((int (*) __P(( \
	62	struct vnode *vp, \
	63	struct nameidata *ndp, \
	64	struct proc *p))) mfs_badop)
	65	#define mfs_create ((int (*) __P(( \
	66	struct nameidata *ndp, \
	67	struct vattr *vap, \
	68	struct proc *p))) mfs_badop)
	69	#define mfs_mknod ((int (*) __P(( \
	70	struct nameidata *ndp, \
	71	struct vattr *vap, \
	72	struct ucred *cred, \
	73	struct proc *p))) mfs_badop)
	74	int mfs_open __P((
	75	struct vnode *vp,
	76	int mode,
	77	struct ucred *cred,
	78	struct proc *p));
	79	int mfs_close __P((
	80	struct vnode *vp,
	81	int fflag,
	82	struct ucred *cred,
	83	struct proc *p));
	84	#define mfs_access ((int (*) __P(( \
	85	struct vnode *vp, \
	86	int mode, \
	87	struct ucred *cred, \
	88	struct proc *p))) mfs_badop)
	89	#define mfs_getattr ((int (*) __P(( \
	90	struct vnode *vp, \
	91	struct vattr *vap, \
	92	struct ucred *cred, \
	93	struct proc *p))) mfs_badop)
	94	#define mfs_setattr ((int (*) __P(( \
	95	struct vnode *vp, \
	96	struct vattr *vap, \
	97	struct ucred *cred, \
	98	struct proc *p))) mfs_badop)
99	#define mfs_read ((int (*) __P(( \
100	struct vnode *vp, \
101	struct uio *uio, \
102	int ioflag, \
103	struct ucred *cred))) mfs_badop)
104	#define mfs_write ((int (*) __P(( \
105	struct vnode *vp, \
106	struct uio *uio, \
107	int ioflag, \
108	struct ucred *cred))) mfs_badop)
109	int mfs_ioctl __P((
110	struct vnode *vp,
111	int command,
112	caddr_t data,
113	int fflag,
114	struct ucred *cred,
115	struct proc *p));
116	#define mfs_select ((int (*) __P(( \
117	struct vnode *vp, \
118	int which, \
119	int fflags, \
120	struct ucred *cred, \
121	struct proc *p))) mfs_badop)
122	#define mfs_mmap ((int (*) __P(( \
123	struct vnode *vp, \
124	int fflags, \
125	struct ucred *cred, \
126	struct proc *p))) mfs_badop)
127	#define mfs_fsync ((int (*) __P(( \
128	struct vnode *vp, \
129	int fflags, \
130	struct ucred *cred, \
131	int waitfor, \
132	struct proc *p))) mfs_badop)
133	#define mfs_seek ((int (*) __P(( \
134	struct vnode *vp, \
135	off_t oldoff, \
136	off_t newoff, \
137	struct ucred *cred))) mfs_badop)
138	#define mfs_remove ((int (*) __P(( \
139	struct nameidata *ndp, \
140	struct proc *p))) mfs_badop)
141	#define mfs_link ((int (*) __P(( \
142	struct vnode *vp, \
143	struct nameidata *ndp, \
144	struct proc *p))) mfs_badop)
145	#define mfs_rename ((int (*) __P(( \
146	struct nameidata *fndp, \
147	struct nameidata *tdnp, \
148	struct proc *p))) mfs_badop)
149	#define mfs_mkdir ((int (*) __P(( \
150	struct nameidata *ndp, \
151	struct vattr *vap, \
152	struct proc *p))) mfs_badop)
153	#define mfs_rmdir ((int (*) __P(( \
154	struct nameidata *ndp, \
155	struct proc *p))) mfs_badop)
156	#define mfs_symlink ((int (*) __P(( \
157	struct nameidata *ndp, \
158	struct vattr *vap, \
159	char *target, \
160	struct proc *p))) mfs_badop)
161	#define mfs_readdir ((int (*) __P(( \
162	struct vnode *vp, \
163	struct uio *uio, \
164	struct ucred *cred, \
165	int *eofflagp))) mfs_badop)
166	#define mfs_readlink ((int (*) __P(( \
167	struct vnode *vp, \
168	struct uio *uio, \
169	struct ucred *cred))) mfs_badop)
170	#define mfs_abortop ((int (*) __P(( \
171	struct nameidata *ndp))) mfs_badop)
172	int mfs_inactive __P((
173	struct vnode *vp,
174	struct proc *p));
175	#define mfs_reclaim ((int (*) __P(( \
176	struct vnode *vp))) nullop)
177	#define mfs_lock ((int (*) __P(( \
178	struct vnode *vp))) nullop)
179	#define mfs_unlock ((int (*) __P(( \
180	struct vnode *vp))) nullop)
181	int mfs_bmap __P((
182	struct vnode *vp,
183	daddr_t bn,
184	struct vnode **vpp,
185	daddr_t *bnp));
186	int mfs_strategy __P((
187	struct buf *bp));
188	int mfs_print __P((
189	struct vnode *vp));
190	#define mfs_islocked ((int (*) __P(( \
191	struct vnode *vp))) nullop)
192	#define mfs_advlock ((int (*) __P(( \
193	struct vnode *vp, \
194	caddr_t id, \
195	int op, \
196	struct flock *fl, \
197	int flags))) mfs_badop)