2009-12-20 21:41:50 +01:00
|
|
|
/* Inode table. This table holds inodes that are currently in use.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <sys/queue.h>
|
|
|
|
|
|
|
|
EXTERN struct inode {
|
|
|
|
mode_t i_mode; /* file type, protection, etc. */
|
|
|
|
nlink_t i_nlinks; /* how many links to this file */
|
|
|
|
uid_t i_uid; /* user id of the file's owner */
|
|
|
|
gid_t i_gid; /* group number */
|
|
|
|
off_t i_size; /* current file size in bytes */
|
|
|
|
time_t i_atime; /* time of last access (V2 only) */
|
|
|
|
time_t i_mtime; /* when was file data last changed */
|
|
|
|
time_t i_ctime; /* when was inode itself changed (V2 only)*/
|
|
|
|
|
|
|
|
/* The following items are not present on the disk. */
|
|
|
|
dev_t i_dev; /* which device is the inode on */
|
2010-03-30 17:00:09 +02:00
|
|
|
dev_t i_rdev; /* which special device is the inode on */
|
2009-12-20 21:41:50 +01:00
|
|
|
ino_t i_num; /* inode number on its (minor) device */
|
|
|
|
int i_count; /* # times inode used; 0 means slot is free */
|
|
|
|
char i_update; /* the ATIME, CTIME, and MTIME bits are here */
|
|
|
|
|
|
|
|
LIST_ENTRY(inode) i_hash; /* hash list */
|
|
|
|
TAILQ_ENTRY(inode) i_unused; /* free and unused list */
|
|
|
|
|
|
|
|
|
|
|
|
} inode[NR_INODES];
|
|
|
|
|
|
|
|
/* list of unused/free inodes */
|
|
|
|
EXTERN TAILQ_HEAD(unused_inodes_t, inode) unused_inodes;
|
|
|
|
|
|
|
|
/* inode hashtable */
|
|
|
|
EXTERN LIST_HEAD(inodelist, inode) hash_inodes[INODE_HASH_SIZE];
|
|
|
|
|
|
|
|
#define NIL_INODE (struct inode *) 0 /* indicates absence of inode slot */
|
|
|
|
|