Annotation of Net2/ufs/mfsnode.h, revision 1.1

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

unix.superglobalmegacorp.com

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.