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top - metrics - downloadIndex: T U i
Length: 4537 (0x11b9)
Types: TextFile
Notes: UNIX file
Names: »inode.h«
└─⟦a6ab2eb36⟧ Bits:30004042/kconfig3.imd SW95705I 386/ix Multi-user Release 1.2
└─⟦a6ab2eb36⟧ UNIX Filesystem
└─⟦this⟧ »kc/new/usr/include/sys/inode.h«
/* Copyright (c) 1984 AT&T */
/* All Rights Reserved */
/* THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF AT&T */
/* The copyright notice above does not evidence any */
/* actual or intended publication of such source code. */
#ident "@(#)inode.h 1.3"
#define FSPTR 1
/*
* The I node is the focus of all
* file activity in unix. There is a unique
* inode allocated for each active file,
* each current directory, each mounted-on
* file, text file, and the root. An inode is 'named'
* by its dev/inumber pair. (iget/iget.c)
* Data, from mode on, is read in
* from permanent inode on volume.
*/
typedef struct inode
{
struct inode *i_forw; /* inode hash chain */
struct inode *i_back; /* '' */
struct inode *av_forw; /* freelist chain */
struct inode *av_back; /* '' */
int *i_fsptr; /* "typeless" pointer to fs dependent */
long i_number; /* i number, 1-to-1 with dev address */
ushort i_ftype; /* file type = IFDIR, IFREG, etc. */
short i_fstyp; /* File system type */
off_t i_size; /* size of file */
ushort i_uid; /* owner */
ushort i_gid; /* group of owner */
ushort i_flag;
ushort i_fill;
cnt_t i_count; /* reference count */
short i_nlink; /* directory entries */
dev_t i_rdev; /* Raw device number */
dev_t i_dev; /* device where inode resides */
struct mount *i_mntdev; /* ptr to mount dev inode resides on */
union i_u {
struct mount *i_mton; /* pntr to mount table entry */
/* that this inode is "mounted on" */
struct stdata *i_sp; /* Associated stream. */
} i_un;
#ifdef FSPTR
struct fstypsw *i_fstypp; /* pointer to file system */
/* switch structure */
#endif
long *i_filocks; /* pointer to filock (structure) list */
struct rcvd *i_rcvd; /* receive descriptor */
} inode_t;
extern struct inode inode[]; /* The inode table itself */
struct ifreelist
{ int pad[2]; /* must match struct inode !*/
struct inode *av_forw;
struct inode *av_back;
} ;
extern struct ifreelist ifreelist;
#define i_sptr i_un.i_sp
#define i_mnton i_un.i_mton
/* flags */
#define ILOCK 0x01 /* inode is locked */
#define IUPD 0x02 /* file has been modified */
#define IACC 0x04 /* inode access time to be updated */
#define IMOUNT 0x08 /* inode is mounted on */
#define IWANT 0x10 /* some process waiting on lock */
#define ITEXT 0x20 /* inode is pure text prototype */
#define ICHG 0x40 /* inode has been changed */
#define ISYN 0x80 /* do synchronous write for iupdate */
#define IADV 0x100 /* advertised */
#define IDOTDOT 0x200 /* object of remote mount */
#define ILBIN 0x400 /* mounted remotely */
#define IRMOUNT 0x800 /* remotely mounted */
#define IISROOT 0x1000 /* This is a root inode of an fs */
/* file types */
/* WARNING: The following defines should NOT change!If more */
/* file types need to be added they should be added in the low */
/* bits */
#define IFMT 0xf000 /* type of file */
#define IFDIR 0x4000 /* directory */
#define IFCHR 0x2000 /* character special */
#define IFBLK 0x6000 /* block special */
#define IFREG 0x8000 /* regular */
#define IFMPC 0x3000 /* multiplexed char special */
#define IFMPB 0x7000 /* multiplexed block special */
#define IFIFO 0x1000 /* fifo special */
/* file modes */
/* the System V Rel 2 chmod system call only knows about */
/* ISUID, ISGID, ISVTX */
/* Therefore, the bit positions of ISUID, ISGID, and ISVTX */
/* should not change */
#define ISUID 0x800 /* set user id on execution */
#define ISGID 0x400 /* set group id on execution */
#define ISVTX 0x200 /* save swapped text even after use */
/* access requests */
/* the System V Rel 2 chmod system call only knows about */
/* IREAD, IWRITE, IEXEC */
/* Therefore, the bit positions of IREAD, IWRITE, and IEXEC */
/* should not change */
#define IREAD 0x100 /* read permission */
#define IWRITE 0x080 /* write permission */
#define IEXEC 0x040 /* execute permission */
#define ICDEXEC 0x020 /* cd permission */
#define IOBJEXEC 0x010 /* execute as an object file */
/* i.e., 410, 411, 413 */
#define IMNDLCK 0x001 /* mandatory locking set */
#define MODEMSK 0xfff /* Nine permission bits - read/write/ */
/* execute for user/group/others and */
/* ISUID, ISGID, and ISVTX */
/* This is another way of saying: */
/* (ISUID|ISGID|ISVTX| */
/* (IREAD|IWRITE|IEXEC)| */
/* ((IREAD|IWRITE|IEXEC)>>3)| */
/* ((IREAD|IWRITE|IEXEC)>>6)) */
#define PERMMSK 0x1ff /* Nine permission bits: */
/* ((IREAD|IWRITE|IEXEC)| */
/* ((IREAD|IWRITE|IEXEC)>>3)| */
/* ((IREAD|IWRITE|IEXEC)>>6)) */