minix/servers/mfs/type.h
Tomas Hruby d2c10fb85e inodes - using types with known size
- fixes a problem in inodes truct definitions. The original definitions use
  posix types. These types don't have well defined size. Therefore when
  compiling mkfs on a different system natively the inodes sizes do not match.
  This patch replaces the posix types with interger types of the same size and
  signedness as the original types in use.
2009-11-06 08:55:07 +00:00

39 lines
1.8 KiB
C

/* Declaration of the V1 inode as it is on the disk (not in core). */
typedef struct { /* V1.x disk inode */
u16_t d1_mode; /* file type, protection, etc. */
i16_t d1_uid; /* user id of the file's owner */
i32_t d1_size; /* current file size in bytes */
i32_t d1_mtime; /* when was file data last changed */
u8_t d1_gid; /* group number */
u8_t d1_nlinks; /* how many links to this file */
u16_t d1_zone[V1_NR_TZONES]; /* block nums for direct, ind, and dbl ind */
} d1_inode;
/* Declaration of the V2 inode as it is on the disk (not in core). */
typedef struct { /* V2.x disk inode */
u16_t d2_mode; /* file type, protection, etc. */
u16_t d2_nlinks; /* how many links to this file. HACK! */
i16_t d2_uid; /* user id of the file's owner. */
u16_t d2_gid; /* group number HACK! */
i32_t d2_size; /* current file size in bytes */
i32_t d2_atime; /* when was file data last accessed */
i32_t d2_mtime; /* when was file data last changed */
i32_t d2_ctime; /* when was inode data last changed */
zone_t d2_zone[V2_NR_TZONES]; /* block nums for direct, ind, and dbl ind */
} d2_inode;
struct buf {
/* Data portion of the buffer. */
union fsdata_u *bp;
/* Header portion of the buffer. */
struct buf *b_next; /* used to link all free bufs in a chain */
struct buf *b_prev; /* used to link all free bufs the other way */
struct buf *b_hash; /* used to link bufs on hash chains */
block_t b_blocknr; /* block number of its (minor) device */
dev_t b_dev; /* major | minor device where block resides */
char b_dirt; /* CLEAN or DIRTY */
char b_count; /* number of users of this buffer */
int b_bytes; /* Number of bytes allocated in bp */
};