minix/fs/mfs/proto.h

   1 #ifndef __MFS_PROTO_H__
   2 #define __MFS_PROTO_H__
   3
   4 /* Some shortcuts to functions in -lminixfs */
   5 #define put_block(b) lmfs_put_block(b)
   6
   7 /* Function prototypes. */
   8
   9 /* Structs used in prototypes must be declared as such first. */
  10 struct buf;
  11 struct filp;
  12 struct inode;
  13 struct super_block;
  14
  15 /* cache.c */
  16 zone_t alloc_zone(dev_t dev, zone_t z);
  17 void free_zone(dev_t dev, zone_t numb);
  18 struct buf *get_block(dev_t dev, block_t block, int how);
  19
  20 /* inode.c */
  21 struct inode *alloc_inode(dev_t dev, mode_t bits, uid_t uid, gid_t gid);
  22 void dup_inode(struct inode *ip);
  23 struct inode *find_inode(dev_t dev, ino_t numb);
  24 int fs_putnode(ino_t ino_nr, unsigned int count);
  25 void init_inode_cache(void);
  26 struct inode *get_inode(dev_t dev, ino_t numb);
  27 void put_inode(struct inode *rip);
  28 void update_times(struct inode *rip);
  29 void rw_inode(struct inode *rip, int rw_flag);
  30
  31 /* link.c */
  32 int fs_trunc(ino_t ino_nr, off_t start, off_t end);
  33 int fs_link(ino_t dir_nr, char *name, ino_t ino_nr);
  34 ssize_t fs_rdlink(ino_t ino_nr, struct fsdriver_data *data, size_t bytes);
  35 int fs_rename(ino_t old_dir_nr, char *old_name, ino_t new_dir_nr,
  36         char *new_name);
  37 int fs_unlink(ino_t dir_nr, char *name, int call);
  38 int truncate_inode(struct inode *rip, off_t len);
  39
  40 /* misc.c */
  41 void fs_sync(void);
  42
  43 /* mount.c */
  44 int fs_mount(dev_t dev, unsigned int flags, struct fsdriver_node *root_node,
  45         unsigned int *res_flags);
  46 void fs_unmount(void);
  47 int fs_mountpt(ino_t ino_nr);
  48
  49 /* open.c */
  50 int fs_create(ino_t dir_nr, char *name, mode_t mode, uid_t uid, gid_t gid,
  51         struct fsdriver_node *node);
  52 int fs_mkdir(ino_t dir_nr, char *name, mode_t mode, uid_t uid, gid_t gid);
  53 int fs_mknod(ino_t dir_nr, char *name, mode_t mode, uid_t uid, gid_t gid,
  54         dev_t dev);
  55 int fs_slink(ino_t dir_nr, char *name, uid_t uid, gid_t gid,
  56         struct fsdriver_data *data, size_t bytes);
  57 void fs_seek(ino_t ino_nr);
  58
  59 /* path.c */
  60 int fs_lookup(ino_t dir_nr, char *name, struct fsdriver_node *node,
  61         int *is_mountpt);
  62 struct inode *advance(struct inode *dirp, const char *string);
  63 int search_dir(struct inode *ldir_ptr, const char *string, ino_t *numb,
  64         int flag);
  65
  66 /* protect.c */
  67 int fs_chmod(ino_t ino, mode_t *mode);
  68 int fs_chown(ino_t ino, uid_t uid, gid_t gid, mode_t *mode);
  69
  70 /* read.c */
  71 ssize_t fs_readwrite(ino_t ino_nr, struct fsdriver_data *data, size_t bytes,
  72         off_t pos, int call);
  73 block_t read_map(struct inode *rip, off_t pos, int opportunistic);
  74 struct buf *get_block_map(register struct inode *rip, u64_t position);
  75 zone_t rd_indir(struct buf *bp, int index);
  76 ssize_t fs_getdents(ino_t ino_nr, struct fsdriver_data *data, size_t bytes,
  77         off_t *posp);
  78
  79 /* stadir.c */
  80 int fs_stat(ino_t ino_nr, struct stat *statbuf);
  81 int fs_statvfs(struct statvfs *st);
  82
  83 /* super.c */
  84 bit_t alloc_bit(struct super_block *sp, int map, bit_t origin);
  85 void free_bit(struct super_block *sp, int map, bit_t bit_returned);
  86 unsigned int get_block_size(dev_t dev);
  87 int read_super(struct super_block *sp);
  88 int write_super(struct super_block *sp);
  89
  90 /* stats.c */
  91 bit_t count_free_bits(struct super_block *sp, int map);
  92
  93 /* time.c */
  94 int fs_utime(ino_t ino_t, struct timespec *atime, struct timespec *mtime);
  95
  96 /* utility.c */
  97 unsigned conv2(int norm, int w);
  98 long conv4(int norm, long x);
  99
 100 /* write.c */
 101 void clear_zone(struct inode *rip, off_t pos, int flag);
 102 struct buf *new_block(struct inode *rip, off_t position);
 103 void zero_block(struct buf *bp);
 104 int write_map(struct inode *, off_t, zone_t, int);
 105
 106 #endif
 107