phunix/minix/fs/pfs/inode.h
David van Moolenbroek f859061eaf PFS: use libfsdriver
In order to avoid creating libfsdriver exceptions, two changes to VFS
are necessary:

- the returned position field for reads/writes is no longer abused to
  return the new pipe size; VFS is perfectly capable of updating the
  size itself;
- during system startup, PFS is now sent a mount request, just like all
  other file systems.

In proper "two steps forward, one step back" fashion, the latter point
has the consequence that PFS can no longer drop its privileges at
startup.  This is probably best resolved with a more general solution
for all boot image system services.  The upside is that PFS no longer
needs to be linked with libc.

Change-Id: I92e2410cdb0d93d0e6107bae10bc08efc2dbb8b3
2014-09-18 12:46:28 +00:00

38 lines
1.2 KiB
C

#ifndef __PFS_INODE_H__
#define __PFS_INODE_H__
/* 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 */
size_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)*/
dev_t i_dev; /* which device is the inode on */
dev_t i_rdev; /* which special device is the inode on */
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[PFS_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];
#endif